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  • 1
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-09
    Description: This Special Issue reprint highlights seventy years since the discovery of carbon nanotubes (CNTs) in 1952 by Russian scientists LV Radushkevich and VM Lukyanovich in what was then the Union of Soviet Socialist Republics or the USSR. It also reflects the popularization by the well-known Japanese scientist S Iijima, since 1991, of carbon nanostructures, including CNTs, towards nanotechnology as a forever impactful and inspiring field. For researchers, academics, and teachers of all levels, from novice to expert to guru, the articles contained within this Special Issue are themed around sustainability from nanotechnology, pertaining to diameter measurement, rotor system molecular simulation, ultra-high tensile strength, energy, filtration via membrane distillation, environmental remediation using adsorption, ionic liquids as curing agents, biosensors and bioinspired sensors, and electrical/mechanical properties of polymer nanocomposites. The CNT is a legacy 1D nanomaterial, only after which was 2D graphene able to emerge. This is a global and mixed-country authorship Special Issue, with this reprint containing articles from Canada, Saudi Arabia, China, Russia, Spain, India, Japan, the United Arab Emirates (UAE), the USA, Germany, Turkiye, and Malaysia. The Guest Editor is from Singapore and began publishing critical work on the CNT-polymer interface towards the mechanical properties of the nanocomposite up to 20 years ago.
    Keywords: CNTs ; MWCNTs ; SWCNTs ; polymer composite ; mechanical performance ; flexible capacitive sensors ; bioinspired spinosum ; CNT/PDMS nanocomposite ; tires ; transmission system ; carbon nanotube (CNT) ; hydroxyl groups ; response speed ; energy dissipation ; carbon nanotubes ; carbon nanotube fibers ; tensile strength ; defect control ; controlled preparation ; dielectric polymer composites ; permittivity ; polymer nanocomposite ; electrical conductivity ; mixing ; polymer blends ; electromagnetic interference shielding ; carbon nanotube ; filler migration ; polyethylene ; lead ; arsenic ; adsorption ; poly(amidoamine) ; silver nanoparticles ; biosensor ; virus ; SARS-CoV-2 ; toxicity ; biocompatibility ; electrospinning ; electrospraying ; nanomaterials ; nanostructured membrane ; nanocomposites ; seawater desalination ; temperature polarization ; flux ; solar energy ; dye degradation ; surface plasmon resonance effect ; TiO2/rGO/Ag ; hybrid nanostructures ; phosphorus ; encapsulation ; lithium-ion batteries ; atomic force microscopy ; diameter ; nanometrology ; epoxy resin ; ionic liquid ; nanocomposite ; curing agent ; dispersing agent ; mechanical properties ; lap shear ; conductivity ; melt-mixing ; polymer composites ; SWCNT ; PMMA ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 2
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-01-08
    Description: The Special Issue entitled “Advances in Rock Mechanics and Geotechnical Engineering” is devoted to the publication of the latest research, field works, and laboratory investigations in the area of rock mechanics and geotechnical engineering. This Special Issue has published novel contributions in different areas of geotechnical and geomechanical engineering such as slope and embankment, tunneling and underground space technologies, pile and foundation, rock mechanics and rock blasting, excavation and leveling projects, ground improvement techniques, unsaturated soil, practical issues in soft soil, mining technology, geo-environmental engineering, new laboratory testing, applied geology for construction, and novel geotechnical construction methods. The focus of this reprint is on the development of computational methods for solving problems in the fields of rock mechanics and geotechnical engineering.
    Keywords: strength prediction ; brittle rock ; grain-structure representation ; micro-properties ; bonded block models ; Voronoi tessellation ; structure-type rockburst ; evolution mechanism ; particle flow code ; flat-joint model ; pre-grouting ; soft coal mass ; coal-grout structure ; shear behavior ; quality improvement ; rock strength ; tensile behaviour ; neuro-fuzzy ; regression ; non-destructive tests ; paste filling ; slicing mining ; false roof stability ; optimal false roof thickness ; tree-based techniques ; feature selection ; pile bearing capacity ; gradient boosted tree ; random forest ; in situ stress ; rock blasting ; crack propagation ; model test ; rheological deformation ; key stratum ; roadway groups ; roadway deformation ; surrounding rock control ; triaxial creep experiment ; cyclic loading and unloading ; elasto-visco-plastic strain ; irrecoverable strain ; tertiary creep stage ; nonlinear creep damage model ; high-altitude slope ; BP neural network ; freeze-thaw cycle ; geological conditions ; mining method ; soft broken complex ore body ; improved AHP ; comprehensive evaluation index ; blasting ; back-break ; SVM ; metaheuristic algorithms ; moth–flame optimization ; whale optimization algorithm ; tilted strata ; roadway ; nonuniform deformation ; physical simulation ; HFDEM ; numerical method ; rock fracture ; strain rate ; mining engineering ; backfill mining ; high-concentration backfill ; elastic modulus ; K-fold cross-validation ; mining ; rock engineering ; sensitivity analysis ; XGBoost ; limit equilibrium method (LEM) ; limit analysis ; accuracy ; slope stability ; homogenous slopes ; error accuracy classification chart ; physical and mechanical responses ; Egyptian granodiorite ; thermal damage threshold ; microstructure ; thermal constructions ; rock slope analysis ; limited analysis method ; numerical methods ; combined/hybrid finite–discrete element method ; FDEM ; non-renewable ; clean coal technology ; waste of resources ; “110 construction method” ; collapse settlement control ; moisture content ; dry–wet cycles ; cyclic loading ; injury mechanism ; acoustic emission RA-AF ; thermal effect prediction model ; uniaxial compressive strength ; static Young’s modulus ; artificial neural network ; multilinear regression ; rock mass ; hydraulic conductivity ; sustainability ; rock mechanics ; geotechnical engineering ; geomechanical engineering ; mining technology ; natural stones ; temperature ; fire ; thermal effect ; point load strength ; porosity ; color ; gloss ; automated mineral identification ; LBP ; classification ; texture feature ; liquefaction potential ; prediction ; Bayesian optimization ; support vector machines ; optimization ; Hoek–Brown criterion ; Mohr failure envelope ; Balmer’s equation ; limit equilibrium analysis ; modified Bishop approach ; active earth pressure ; unsaturated narrow backfill ; interlayer shear stress ; arching effect ; thin-layer element method ; tunnel excavation ; cut blasting method ; LLB method ; uncharged hole ; numerical simulation ; spectrum index ; water content ; hyperspectral information ; V-type firing pattern ; collision fragmentation ; RSA ; ANN ; coupled stress-hydro effect ; uniaxial loading ; infrared radiation ; warning threshold ; non-destructive monitoring ; alteration ; tunnel ; stress field ; deformation field ; plastic zone ; flyrock ; weathering index (WI) ; equilibrium optimizer (EO) ; particle swarm optimization (PSO) ; extreme learning machine (ELM) ; artificial neural network (ANN) ; high-water material ; seawater ; water-cement ratio ; strength ; mining method optimization ; difficult-to-mine complicated orebody ; multiple attribute decision making ; Pythagorean fuzzy sets and TOPSIS method ; mechanized upward horizontal layering method ; plateau alluvial-lacustrine deposits ; round gravelly soil ; large scale direct shear test ; shear strength parameters ; Erbil ; geotechnical characterization ; GIS ; ANFIS ; differential evolution ; firefly algorithm ; frozen rock mass blasting ; ice-filled crack ; explosion stress wave propagation ; attenuation factor ; UCS ; intelligent and statistical methods ; sedimentary rocks ; modulus of deformation ; RMR ; in situ testing ; modelling ; instrumentation ; failure risk ; element failure probability ; spatial variability ; stochastic groundwater level ; upper bound method ; rock joints ; shear strength ; scale effects ; normal stress ; JRC ; PFC simulation ; water inrush ; precursor ; strain energy ; normalized ; sustainable mine ; blast-induced flyrock ; LSSVM ; prediction models ; salt cavern ; underground gas storage ; continuum-discrete coupled method ; thermal-mechanical coupling ; thermal damage ; marble strength ; direct and indirect methods ; correlations analysis ; artificial intelligence techniques ; performance indicators ; resonant column test ; torsional simple shear test ; damping ratio ; steady-state vibration ; free vibration decay ; bibliometric analysis ; pile foundation ; sustainable structure ; VOS viewer ; Web of Science ; red clay ; desiccation cracking mechanism ; digital image correlation technology ; strain ; displacement ; mineral carbonation ; comminution energy ; stress–strain relationship ; elastic properties ; radial distribution function ; crown deformation ; underground caverns ; parametric study ; multiple linear regression ; twin tunnels ; 3D numerical analysis ; surface settlement ; field measurement ; geotechnical and geological conditions ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 3
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-01-08
    Description: Agricultural practices, industrial manufacturing, and household consumption are just a few of the activities that contribute to the production of food waste biomass. Modern environmental theories, like the circular economy, are thought to be the impulse behind the implementation of zero-waste policies. The huge percentage of such residual biomass has significant potential to be used as a raw material to produce novel products and specialty feedstock through biorefining procedures, even though the high volume of waste originating from the food industry raises serious concerns regarding both economic and environmental aspects. Given that many plant parts that are rejected during fruit and vegetable processing (e.g., leaves, branches, peels, roots, stems, and seeds) carry a sizable load of phytochemicals, including polyphenols, the recovery of valuable secondary metabolites from waste plant tissues is an appealing prospect in this regard. This specific group of substances exhibits a wide range of chemical compositions with diverse biological characteristics and functions, including antioxidant and antibacterial activities as well as chemoprotective effects against cancer and other degenerative diseases.
    Keywords: oyster shell waste ; washing method ; sodium chloride ; impurities ; particle size ; anaerobic digestion ; agricultural inputs ; biochemical methane potential ; biodegradability ; lignocellulosic biomasses ; manures ; agriculture ; agricultural waste management ; allelopathic effect ; invasive species ; phytoremediation ; rice straw ; rice bran ; rice husk ; agricultural waste ; valorization ; circular economy ; biomass ; bioeconomy ; kinetics ; lignocellulosic biomass ; mechanical pretreatment ; methane potential ; twin-screw extrusion ; fruit and vegetable ; biowaste ; synergies ; matchmaking ; platform ; industrial symbiosis ; waste management ; sustainability ; green building ; recycle ; food waste ; lightweight concrete ; lime concrete ; fruit shells ; coarse aggregate replacement ; sugarcane bagasse ; pentose liquor ; dark fermentation ; biohydrogen ; organic acids ; biorefinery ; fungi ; laccase ; microcosm ; homogenisation ; hemicellulose ; cellulose ; fibre ; conventional limestone ; waste brown eggshells ; polylactic acid ; mechanical properties ; bio-composite ; Aspergillus niger ; ellagitannins ; phenolic compounds ; punica granatum ; saccharomyces cerevisiae ; solid-state fermentation ; limonene ; alpha-pinene ; biotransformation ; terpene ; flavouring agent ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PN Chemistry
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  • 4
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: A high demand for metals (cobalt, copper, gold, lithium, nickel, tin, vanadium, etc.) has been recorded for the past several decades, and this demand is expected to increase even further in the coming decades as the world moves to low-carbon technologies based on renewable energy sources (RESs) and electric vehicles (EVs) and away from the heavy use of fossil fuels. To meet the high forecasted demand, unconventional sources of metals such as low-grade complex ores, seafloor massive sulfides (SMSs), and wastes (e.g., tailings, metallurgical residues, and electronic wastes (e-wastes)) have become very important sources of metals; moreover, these metals should be extracted in a sustainable manner without negatively impacting the environment. This Special Issue focused on recent advances in the sustainable production of metals from the above-mentioned unconventional sources.This reprint is a compilation of a Special Issue of Minerals, “Sustainable Production of Metals for Low-Carbon Technologies”, where 13 papers contributed by experts in the area were published. Papers published in this Reprint cover a wide range of topics, including mineral processing (gravity concentration, magnetic separation, and flotation), hydrometallurgical techniques (leaching, solvent extraction, and cementation) to extract minerals/metals from primary and secondary resources. All the papers are of high scientific value and will be of great interest to readers of Minerals.
    Keywords: flotation circuit ; gold ore ; diagnosis ; optimization ; mass balance ; process simulation ; printed circuit boards ; heat treatment ; strength ; liberation ; Cu recovery ; physical separation ; ferronickel slag ; sulfuric acid leaching ; light magnesium oxide ; rare earth elements ; magnetic separation ; upgradation ; Khalzan Buregtei deposit ; NiMH batteries ; rare earth metals ; leaching ; solvent extraction ; precipitation ; gold ; cementation ; galvanic interaction ; aluminum ; activated carbon ; kinetics ; ammonium thiosulfate solution ; mass transfer ; fluorine ; occurrence ; removal ; gravity-flotation separation ; lignite ; lead ; zinc ; Al metal powder ; zinc plant leach residues ; flotation ; copper sulfides ; tailings ; carrier flotation ; flocculation ; oil agglomeration ; complex sulfide ores ; sphalerite ; anglesite ; extraction ; lithium ion battery ; recycling ; carbothermic reduction ; graphite ; porphyry copper deposits ; chalcopyrite ; pyrite ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences::TTU Mining technology and engineering
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  • 5
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-01-08
    Description: The effort of the Editors has received global attention. Indebtedness is due to Saha and Asif and coworkers from Canada, Joseph and Mahapatra and coworkers from Poland and India, Ramirez-Montoya and coworkers from Spain and Mexico, Mota-Panizio and coworkers from Portugal and Brazil, Izquierdo and Lopez-Coca and coworkers from Spain, Vinitnantharat and coworkers from Thailand and the UK, Roy and Fini and coworkers from India and the USA, Lawson and Luyima and coworkers from Ghana and South Korea, Fouad El Mansouri and coworkers from Morocco and Spain, and Man Zhang and Yaning Zhang and coworkers from China for the 10 scholarly research papers dealing with the synthesis, characterization, properties, and applications of new carbon materials. The applications are mainly centered around environmental remediation owing to the intensity of the problem and comprise of water decontamination and the removal of heavy metals and organic compounds like tannic acid from contaminated sources. The use of biochar in agriculture for preventing nitrogen leaching for soil has also been included. Unconventional carbon-related materials like rice husk ash and carbon steel slag were also used for exotic applications.
    Keywords: polymers ; biocompatible ; biodegradable ; compostable ; sustainable ; market dynamics ; research trends ; graphene ; graphene-like materials ; carbon ; biomass pyrolysis ; microwave pyrolysis ; OMWW ; adsorption ; carbon steel slag ; tannic acid ; biochar ; dry matter accumulation ; leaching of nitrogen ; nitrogen uptake ; tropical sandy soils ; sustainability ; carbon footprint ; rice husk ash ; lime ; silica ; asphalt ; concrete ; roadways ; fractionation ; heavy metal removal ; isotherm ; modified biochar ; WIEC ; carbonization ; pretreatment ; activation ; carbonaceous material ; hydrothermal carbon ; Castanea sativa ; biomass residues ; residue valorization ; per- and poly-fluoroalkyl substances (PFAS) ; water decontamination ; porous carbon monolith ; whey ; biomass carbon ; mechanical properties ; C ; H ; N ; corn straw ; microwave heating ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PN Chemistry ; bic Book Industry Communication::P Mathematics & science::PN Chemistry::PNK Inorganic chemistry
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  • 6
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-01-08
    Description: This reprint aims to identify critical areas of water quality assessment, modeling, and mitigation in freshwater bodies, wastewater treatment, and groundwater aquifers, which require special attention. This links the volume to multiple regulatory options, including policy and governance measures, alternative ecosystem service dependence options (i.e., nature-based solutions), or mechanisms that link regions to international processes, like measures proposed under the Environmental Protection guidelines. The reprint will pay special attention to water quality assessment, modeling, and mitigation.
    Keywords: pumping station pipeline ; chaotic characteristic ; IVMD ; vibration response ; correlation dimension ; Lyapunov exponent ; monitoring ; mitigations ; spatial and temporal variabilities ; principal component analysis ; cluster analysis ; discriminant analysis ; water quality ; pollution ; correlation ; settlement ; damage evolution ; seepage/stress-damage method ; data monitoring ; groundwater ; heavy metals ; physicochemical parameters ; in-situ ; machine learning ; geostatistical analysis ; nanofiltration ; electrocoagulation ; nickel ; zinc ; copper ; water pollution ; adsorption ; copper ions ; adsorption mechanism ; adsorption kinetics ; thermodynamics ; expanded S-curve model ; domestic water usage ; economic development ; mathematical model ; Sentinel-2 ; chlorophyll ; turbidity ; lake ; concentration modeling of contaminants ; Cuernavaca aquifer ; hydrochemistry ; water quality index ; time series analysis ; spatial analysis ; water intensity ; LMDI model ; Tapio model ; technical effect ; industrial structure effect ; regional scale effect ; tannery effluent ; ozonation ; optimization ; turbidity removal ; Taguchi ; ecosystem services ; provisioning ecosystem services ; regulating ecosystem services ; cultural ecosystem services ; supporting ecosystem services ; modeling ; water quality indexing ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::K Economics, finance, business & management::KC Economics::KCN Environmental economics
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  • 7
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: The reprint, titled ”Sustainable Biopolymer-Based Composites: Processing, Characterization, and Application”, is composed of 32 scientific works of scholars that contributed their own expertise passion, and science to expand the boundaries of knowledge by addressing new challenges. The topic of new biopolymer-based composite materials is addressed from several aspects, from the development to characterization and application, in several fields of scientific interest.
    Keywords: biopolymer-treated soil ; Xanthan Gum ; Guar Gum ; soil strength ; durability ; cyclic wetting-drying ; biodegradability ; carbon nanotubes ; graphene ; life cycle analysis ; nanocomposites ; packaging ; remediation ; starch ; aging ; coarse wool fibre ; hybrid composites ; natural rubber ; PALF ; sisal fibre ; mulch films ; biopolymers ; SDGs ; plastic pollution ; polymers ; microfluidics ; lab-on-chip ; biomedical engineering ; drug carrier ; artificial cell ; 3D bioprinting ; hydrogel films ; gelatin ; antimicrobial activity ; food packaging ; TGA ; biocomposites ; renewable sources ; wood waste ; waste valorization ; primerless-wet bonding ; resin adhesive system ; hybrid layer ; tensile bond strength ; micro-seal ; luting resin ; dental prosthesis ; fixed prosthodontics ; bioplastics ; conventional polymers ; renewable resources ; LCA ; fish collagen ; fish industry waste ; collagen extraction ; nano collagen ; sustainability ; poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) ; cellulose nanofiber ; bionanocomposite ; melt-extrusion processing ; optimization ; response surface methodology ; acrylonitrile butadiene rubber ; fish scale ; bis(triethoxysilylpropyl)tetrasulfide ; composite ; compatibilizer ; collagen biopolymer ; unicornfish bone ; acid extraction ; characterization ; biocompatible ; biodegradable ; scaffolds ; tissue engineering ; lignin biopolymer ; erosion ; triaxial test ; wetting and drying cycles ; silt ; green macroalga ; red sea ; Chaetomorpha linum ; cellulose nanocrystals ; green silver nanoparticles ; bio-nanocomposite films ; optical properties ; Torenia fournieri ; zinc oxide nanoparticle ; smart packaging sensors ; wound healing ; biodegradable plastic ; circular economy ; pineapple ; tensile strength ; silver nanoparticles ; green synthesis ; Piper betle L. leaf ; pig lining leather ; antibacterial activity ; antifungal activity ; polylactic acid (PLA) ; spent coffee grounds (SCG) ; rheological properties ; mechanical properties ; chitosan ; nanofiber ; preparation ; applications ; wound dressing ; acetylation ; flour ; physicochemical properties ; modification ; wound dressings ; hydrogel ; honey ; natural polymer ; synthetic polymer ; PLA ; biodegradation ; sports equipment manufacturing ; arrowroot starch ; heat-moisture treatment ; octenylsuccinilation ; dual-modification ; functional properties ; glabridin ; 3-O-Ethyl-L-ascorbic acid ; tranexamic acid ; microneedles ; pigmentation ; multifunctional drug ; hydrophilic bioplastics ; gum Arabic ; polyvinyl alcohol ; casting of poly-(methyl methacrylate) ; dehydration ; phosphorus pentoxide ; peeling ; microbial biodegradation ; green composites ; stem fiber ; crystallinity ; thermal behavior ; reinforcement material ; pineapple leaf fiber ; flax ; poly(butylene succinate) ; unidirectional composites ; microstructure ; sustainable materials ; epoxy resin ; Schiff base ; epoxidized soybean oil ; epoxy vitrimer ; reprocessability ; recyclability ; agroindustrial wastes ; biomaterials ; cellulose ; lignocellulosic biomass ; polylactic acid ; coir fiber ; bamboo leaf fiber ; annealing ; biocomposite ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TD Industrial chemistry and manufacturing technologies::TDC Industrial chemistry and chemical engineering
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  • 8
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: The Special Issue entitled “Advances in Rock Mechanics and Geotechnical Engineering” is devoted to the publication of the latest research, field works, and laboratory investigations in the area of rock mechanics and geotechnical engineering. This Special Issue has published novel contributions in different areas of geotechnical and geomechanical engineering such as slope and embankment, tunneling and underground space technologies, pile and foundation, rock mechanics and rock blasting, excavation and leveling projects, ground improvement techniques, unsaturated soil, practical issues in soft soil, mining technology, geo-environmental engineering, new laboratory testing, applied geology for construction, and novel geotechnical construction methods. The focus of this reprint is on the development of computational methods for solving problems in the fields of rock mechanics and geotechnical engineering.
    Keywords: strength prediction ; brittle rock ; grain-structure representation ; micro-properties ; bonded block models ; Voronoi tessellation ; structure-type rockburst ; evolution mechanism ; particle flow code ; flat-joint model ; pre-grouting ; soft coal mass ; coal-grout structure ; shear behavior ; quality improvement ; rock strength ; tensile behaviour ; neuro-fuzzy ; regression ; non-destructive tests ; paste filling ; slicing mining ; false roof stability ; optimal false roof thickness ; tree-based techniques ; feature selection ; pile bearing capacity ; gradient boosted tree ; random forest ; in situ stress ; rock blasting ; crack propagation ; model test ; rheological deformation ; key stratum ; roadway groups ; roadway deformation ; surrounding rock control ; triaxial creep experiment ; cyclic loading and unloading ; elasto-visco-plastic strain ; irrecoverable strain ; tertiary creep stage ; nonlinear creep damage model ; high-altitude slope ; BP neural network ; freeze-thaw cycle ; geological conditions ; mining method ; soft broken complex ore body ; improved AHP ; comprehensive evaluation index ; blasting ; back-break ; SVM ; metaheuristic algorithms ; moth–flame optimization ; whale optimization algorithm ; tilted strata ; roadway ; nonuniform deformation ; physical simulation ; HFDEM ; numerical method ; rock fracture ; strain rate ; mining engineering ; backfill mining ; high-concentration backfill ; elastic modulus ; K-fold cross-validation ; mining ; rock engineering ; sensitivity analysis ; XGBoost ; limit equilibrium method (LEM) ; limit analysis ; accuracy ; slope stability ; homogenous slopes ; error accuracy classification chart ; physical and mechanical responses ; Egyptian granodiorite ; thermal damage threshold ; microstructure ; thermal constructions ; rock slope analysis ; limited analysis method ; numerical methods ; combined/hybrid finite–discrete element method ; FDEM ; non-renewable ; clean coal technology ; waste of resources ; “110 construction method” ; collapse settlement control ; moisture content ; dry–wet cycles ; cyclic loading ; injury mechanism ; acoustic emission RA-AF ; thermal effect prediction model ; uniaxial compressive strength ; static Young’s modulus ; artificial neural network ; multilinear regression ; rock mass ; hydraulic conductivity ; sustainability ; rock mechanics ; geotechnical engineering ; geomechanical engineering ; mining technology ; natural stones ; temperature ; fire ; thermal effect ; point load strength ; porosity ; color ; gloss ; automated mineral identification ; LBP ; classification ; texture feature ; liquefaction potential ; prediction ; Bayesian optimization ; support vector machines ; optimization ; Hoek–Brown criterion ; Mohr failure envelope ; Balmer’s equation ; limit equilibrium analysis ; modified Bishop approach ; active earth pressure ; unsaturated narrow backfill ; interlayer shear stress ; arching effect ; thin-layer element method ; tunnel excavation ; cut blasting method ; LLB method ; uncharged hole ; numerical simulation ; spectrum index ; water content ; hyperspectral information ; V-type firing pattern ; collision fragmentation ; RSA ; ANN ; coupled stress-hydro effect ; uniaxial loading ; infrared radiation ; warning threshold ; non-destructive monitoring ; alteration ; tunnel ; stress field ; deformation field ; plastic zone ; flyrock ; weathering index (WI) ; equilibrium optimizer (EO) ; particle swarm optimization (PSO) ; extreme learning machine (ELM) ; artificial neural network (ANN) ; high-water material ; seawater ; water-cement ratio ; strength ; mining method optimization ; difficult-to-mine complicated orebody ; multiple attribute decision making ; Pythagorean fuzzy sets and TOPSIS method ; mechanized upward horizontal layering method ; plateau alluvial-lacustrine deposits ; round gravelly soil ; large scale direct shear test ; shear strength parameters ; Erbil ; geotechnical characterization ; GIS ; ANFIS ; differential evolution ; firefly algorithm ; frozen rock mass blasting ; ice-filled crack ; explosion stress wave propagation ; attenuation factor ; UCS ; intelligent and statistical methods ; sedimentary rocks ; modulus of deformation ; RMR ; in situ testing ; modelling ; instrumentation ; failure risk ; element failure probability ; spatial variability ; stochastic groundwater level ; upper bound method ; rock joints ; shear strength ; scale effects ; normal stress ; JRC ; PFC simulation ; water inrush ; precursor ; strain energy ; normalized ; sustainable mine ; blast-induced flyrock ; LSSVM ; prediction models ; salt cavern ; underground gas storage ; continuum-discrete coupled method ; thermal-mechanical coupling ; thermal damage ; marble strength ; direct and indirect methods ; correlations analysis ; artificial intelligence techniques ; performance indicators ; resonant column test ; torsional simple shear test ; damping ratio ; steady-state vibration ; free vibration decay ; bibliometric analysis ; pile foundation ; sustainable structure ; VOS viewer ; Web of Science ; red clay ; desiccation cracking mechanism ; digital image correlation technology ; strain ; displacement ; mineral carbonation ; comminution energy ; stress–strain relationship ; elastic properties ; radial distribution function ; crown deformation ; underground caverns ; parametric study ; multiple linear regression ; twin tunnels ; 3D numerical analysis ; surface settlement ; field measurement ; geotechnical and geological conditions ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
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  • 9
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-01-08
    Description: Biomaterials are natural or artificial materials used to manufacture implants to replace lost or diseased biological structures in order to restore form and function. Biomaterials that require long-term service, such as orthopedic implants, need good physical and chemical stability, such as stainless steel and titanium alloys. The application of metal in biomedicine is becoming more and more common, but due to its various limitations, it is often necessary to modify its surface to obtain better performance and better clinical application. There are many technologies for the surface modification of medical metals, such as laser surface modification, chemical treatment, plasma surface modification, etc., and these technologies are still being developed to meet market demand. This reprint will provide important contributions related to the announced topics, focusing on biomedical metals and the surface modification technologies of biomedical metals.
    Keywords: titanium ; surface modification ; surface topographies ; multifunctional surfaces ; metamaterials ; 4D printing ; ZK60 magnesium ; micro-arc oxidation ; atmospheric plasma spraying ; corrosion ; additive manufacturing ; porous titanium ; implant coatings ; antibacterial agent ; laser cladding ; Ca/P bio-ceramic coating ; biocompatibility ; bioactivity ; wear resistance ; magnetite ; conversion coating ; optimization ; invitro cytotoxicity ; beta titanium alloy ; elastic modulus ; corrosion property ; osseointegration ; Ti-matrix composites (TMCs) ; graphene oxide (GO) ; mechanical properties ; reinforcement ; laser-induced periodic surface structures ; femtosecond laser processing ; functional surfaces ; application ; composite ; 3D printing ; bioresorbable Fe-Cu-hydroxyapatite composite ; titanium alloy ; phosphate layer ; biomaterial ; zinc phosphate ; scholzite ; PVA films ; boric acid ; polyhexamethylene guanidine hydrochloride ; antimicrobial properties ; surface treatment ; titanium alloys ; microstructure ; physicochemical properties ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PH Physics
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  • 10
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-24
    Description: This book reprints articles from the Special Issue "Advances in Computer-Aided Technology" published online in the open-access journal Machines (ISSN 2075-1702). This book consists of thirteen published articles. This Special Issue belongs to the "Mechatronic and Intelligent Machines" section. Industry 4.0 is characterized by the integration of advanced technologies, such as artificial intelligence, the Internet of Things, and cloud computing, into traditional manufacturing and production processes. CAx (Computer-Aided Systems) systems are a set of computer software tools used in engineering and product design, covering various stages of the product development cycle. Advanced CAx tools combine many different aspects of product lifecycle management (PLM), including design, finite element analysis (FEA), manufacturing, production planning and product. In connection with the transition to Industry 4.0 concepts, the concept of the digital twin comes to the fore, and existing CAx systems must adapt to this trend. The Special Issue deals with a number of research areas, such as: - New trends in CAx systems; Digital manufacturing; Internet of Things in manufacturing; Simulation of production systems and processes; Systems for advanced finite element analysis; Material engineering; Digitization and 3D scanning.
    Keywords: tensor glyph ; golden section ; vector space ; sandwich ; springback ; Vegter yield criterion ; numerical simulation ; PAM-STAMP 2G ; isotropic hardening law ; kinematic hardening law ; bending ; Bauschinger effect ; machine learning ; artificial neural network ; additive manufacturing ; high precision metrology ; CAD ; predictive model ; ship hull structure ; computer-aided design of structure ; database ; function soft block ; gun drill tool ; deep-drilling technology ; optimization ; tool life ; angle ; digital implant impression ; interimplant distance ; intraoral scanner ; trueness ; sewing machine ; needle bar ; floating needle ; electromagnet ; electromagnetic simulation ; noise reduction ; cycloidal gearbox ; friction ; actuator ; servomotor ; permanent magnet synchronous machine ; fixture design ; machining ; sustainable manufacturing ; process innovation ; complex-shape part ; signal processing ; monitoring system ; laser profiler ; surface roughness ; quality assessment ; non-contact method ; vision-based method ; frequency analysis ; abrasive water jet ; wood plastic composite ; natural reinforcement ; knitting machine ; stroke ; drive ; simulation ; cylinder ; dynamic modeling ; load spectrum reconstruction ; fatigue test ; hydraulic excavator ; n/a ; thema EDItEUR::C Language and Linguistics
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  • 11
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: Mg alloy is the lightest metallic structural material and possesses the advantages of high specific strength, high specific stiffness, good electromagnetism shield, good damping capacity, good machinability, and easy recycling, etc. Therefore, it has extremely broad application prospects and has drawn considerable interest in the fields of automobile, electronics, electrical appliances, transportation, aerospace, and aviation. In addition, Mg alloys are gradually showing application potential in emerging industries, serving as biodegradable metals in the biomedical field, functional material for hydrogen storage, and so on. This Special Issue (SI), entitled “Research Progress in High-Performance Magnesium Alloy and Its Applications”, presents recent developments and excellent results in the field of Mg alloys, and includes 10 articles and one editorial covering some interesting aspects of the topic.
    Keywords: grain refinement ; high strength and toughness ; {10–12} twin ; Mg-Gd-Y alloy ; multidirectional impact forging ; Mg-Zn-Mn-Ca ; Ca2Mg6Zn3 phase ; corrosion behaviors ; SKPFM ; boride ; MgB2 ; mechanical alloying ; ignition ; combustion ; flame temperature ; magnesium alloy ; biocompatibility ; surface coating modification ; corrosion resistance ; implantable bio-metal materials ; filler material ; welding ; scandium ; microstructure modification ; mechanical properties ; microstructure ; texture ; stretch formability ; high temperature cross-rolling ; annealing ; wire arc additive manufacturing ; cold metal transfer ; Al-Mg alloys ; orthogonal experiment ; Mg-Bi-Ca alloy ; hot deformation ; constitutive model ; dynamic recrystallization kinetics ; Mg alloy ; twinning ; random orientation ; compression ; room temperature ; backward extrusion ; tensile strength ; failure mechanism ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGM Materials science
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  • 12
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-08-08
    Description: This reprint focuses on both advanced metals and their alloys and the areas of physical and process metallurgy, materials science, and processing techniques. Specific areas of interest also include titanium/nickel-based superalloys, intermetallics, advanced metallic materials, nanomaterials, metal matrix composites, functional materials, related synthesis and processing techniques, finite element modelling, statistical analysis, physical/mechanical property characterization, experimental validation, and other relevant phenomena. Physical metallurgy is important in the design and optimization of advanced materials with superior physical and mechanical properties through microstructural modifications and processing techniques. The goal of reprint was to bring together recent progress, novel technologies, and advanced equipment for the design and development of advanced metals and alloys and provide guidelines/benchmarks for further research in related areas. Composites, intermetallics, and nanomaterials as well as functional materials will be also included. Some of the recent advances in the field of advanced metals and alloys include novel material processing techniques, manufacturing methods and theories, microstructural characterization, modelling development, and advanced equipment. Conventional and nonconventional processes related to machining, forming, laser processing, additive/subtractive manufacturing, surface modification, and the solidification of high-performance alloys/metals are also included.
    Keywords: Fe-rich Al–Si alloy ; β-Al5FeSi phase ; cooling rate ; melt spinning ; microstructure ; strengthening mechanisms ; Zn-Mg-Ti alloy ; biodegradable metals ; mechanical properties ; cytotoxicity ; Fe-B-W alloy ; manganese ; aluminum ; molten zinc ; microanalysis ; corrosion ; hydrogenated–dehydrogenated titanium powder ; laser directed energy deposition ; mechanical property ; radio frequency plasma technique ; high entropy alloy ; bulk metallic glass ; similar element substitution/addition ; glass forming ability ; lattice distortion ; sapphire ; surface metallization ; deposition mechanism ; wettability ; low-temperature joining ; silver alloy bonding wire ; bonding strength ; vulcanization resistance ; cathodic passivation ; Mg–Nd alloy ; precipitate ; eutectic growth ; modelling and simulation ; recrystallization ; microstructure-property characterization simulation and modeling ; heat treatment and surface treatment ; TC4 alloy ; EBCHM ; aging treatment ; glass-forming ability ; corrosion behavior ; amorphous alloy ; phase transformation ; mechanical behavior ; corrosion wear resistance ; gear grinding ; white layer ; grinding temperature ; surface integrity ; AlSi10Mg alloy ; friction stir processing ; grain boundary ; texture ; dynamic recrystallization ; silver wire ; wire bonding ; chloride ions ; ion migration ; galvanic corrosion ; Cu-15Ni-8Sn alloys ; grain size ; solution treatment ; microalloying ; microstructural evolution ; laser-powder bed fusion ; MgAl2O4 ; TiB2 ; metallothermic reduction ; SHS powder metallurgy ; combustion wave propagation ; HSLA steel ; microstructural characterization ; laser welding ; thick plate ; corrosion resistance ; high entropy alloys ; lightweight ; magnesium alloys ; ultrasound treatment ; solution ; aging ; Mg17Al12 ; converter ; vortex ; flow field analysis ; numerical simulation ; steel ball ; skew rolling ; cold forming ; stainless steel ; copper–scandium CuSc ; copper alloy ; differential scanning calorimetry DSC ; precipitation kinetics ; cold-working ; cold-rolling ; activation energy ; Kissinger method ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 13
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-01-05
    Description: This Special Issue covers manufacturing of a smart polymer composites via choice of ingredients, such as polymer, filler, and additives, as well as their unique composition. It also covers the smart processing of polymer composites, which is influenced by the choice of mixers, processing condition, processing technique, etc.
    Keywords: thermoplastic polyurethane ; expanded bead ; supercritical CO2 foaming ; expansion ratio ; resilience ; hardness ; poly(lactic acid) ; lignin ; maleic anhydride ; chemical modification ; 3D printing filament ; SEBS ; membrane ; water uptake ; impedance spectroscopy ; ionic conductivity ; phlogopite ; natural rubber (NR) ; ethylene-propylene-diene monomer rubber (EPDM) ; mechanical properties ; compatibility ; nylon 6 ; polyketone ; chain extender ; hydrogen bonding ; chain branching ; chain crosslinking ; melt viscosity ; shape memory polymer ; NIR light responsive ; semicrystalline maleated polyolefin elastomer ; polyaniline ; melt blending ; adhesive ; fluorosilicone ; thermal conductivity ; magnesium oxide ; boron nitride ; syntactic foams ; hyperbranched polymer ; polyamide 6 ; hollow glass microsphere ; lubricant ; compatibilizer ; composites ; silica ; silane ; hydrolysis ; interfacial adhesion ; zinc mechanism ; hybrid flame retardant materials ; influence of gypsum ; minimum total heat release ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues
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  • 14
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-02
    Description: The Special Issue “Demand Response in Smart Grids” includes 11 papers on a variety of topics. The success of this Special Issue demonstrates the relevance of demand response programs and events in the operation of power and energy systems at both the distribution level and at the wide power system level. This reprint addresses the design, implementation, and operation of demand response programs, with focus on methods and techniques to achieve an optimized operation as well as on the electricity consumer.
    Keywords: demand response ; population evolution ; irrational behavior ; Markov state ; non-cooperative game ; solid electric thermal storage ; cyber–physical model ; K-means ; support vector machine ; neural network ; data analysis ; demand response (DR), load profile clustering ; k-means ; targeting of customer ; aggregator ; ramp period ; real-time simulation ; multi-objective optimization ; social welfare metrics ; energy allocation ; load disaggregation ; percentage total harmonic distortion and non-intrusive identification of load pattern ; charging strategy ; optimization ; electricity pricing ; electric vehicle ; flexibility ; flexibility market ; home energy management system ; energy flexibility ; industrial energy management ; demand side management ; control approaches ; energy management ; optimization method ; objective function ; control constraints ; Demand Response ; dynamic thermal rating ; hosting capacity ; transformer ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 15
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-28
    Description: The diversity of wood and non-wood forest products is enormous and reflected in their anatomical, physical and chemical properties as well as their potential applications. Special attention should be given to lesser-known species and even to invasive species, which may be profitable when properly managed, thereby decreasing the overexploitation of threatened species. Besides the market importance of stem wood, other tree components and non-wood forest products, often regarded simply as forest residual materials, are valuable forest resources with various potential applications that can strengthen the circular economy. Assessing the characteristics of these diverse materials, such as their structure and anatomy as well as their physical and chemical properties, is fundamental for evaluating their potential and increasing high-quality end-uses. This knowledge will also contribute to sustainable forest management with enhanced forest diversity and species conservation in addition to the reinforcement of certification and environmental policies.
    Keywords: Calamus zollingeri ; Calamus ornatus ; dynamic vapor sorption ; basic density ; volumetric swelling ; white rot ; mold ; Quercus suber L. ; seasonal variation ; cuticular waxes ; leaves ; new species ; morphology ; wood ; properties ; chemical composition ; spectroscopy ; chemometrics ; unconventional species ; Quercus suber ; cork borer ; cork ; phenolics ; tropical species ; wood anatomy ; wood density ; wood color ; multivariate analysis ; species diversity ; dark-brown zone ; lenticular filling tissue ; quantitative anatomical characteristics ; Quercus variabilis ; reproduction cork ; scanning electron microscopy ; sclereid ; virgin cork ; Cytisus scoparius ; liquefied ; optimization ; eco-valorization ; agro-industrial residues ; Asparagaceae ; lignocellulose ; crystalline cellulose ; syringyl/guaiacyl ; anatomy ; Tilia amurensis Rupr. ; Tilia mandshurica Rupr. & Maxim. ; branch ; wood properties ; papermaking material ; tropical timber ; color parameters ; mid-infrared spectroscopy ; FTIR ratios ; environmental factors ; West African Sahel ; Cupressus funebris Endl. wood ; wood knots ; physical properties ; wood color properties ; n/a ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences ; thema EDItEUR::K Economics, Finance, Business and Management::KN Industry and industrial studies::KNA Agribusiness and primary industries::KNAL Forestry industry
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  • 16
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-03-07
    Description: Metal 3D printing, as an advanced forming, can manufacture parts directly from digital model by using layer by layer material build-up approach. This manufacturing method can prepare complex shape metal parts in short time, with and high precision. Three-dimensional printing processes can be classified into two major groups: Powder Bed Fusion-based technologies and Directed Energy Deposition. Three-dimensional printing features freedom of part complexity, part design, and light-weighting for aerospace, automobile, and other industries application. The Global Metal 3D Printing Market is mainly driven by the the fast developing of aerospace and automobile industry. The Global Metal 3D Printing Market size was valued at USD 534.18 Million in 2020 and is projected to reach USD 4458.76 Million by 2028, growing at a CAGR of 30.38% from 2021 to 2028.
    Keywords: 17-4PH ; SLM ; solution temperature ; microstructure and properties ; selective laser melting ; CuCrZr alloy ; process parameters ; relative density ; tensile properties ; Ni-based superalloys ; electron beam melting ; additive manufacturing ; Argon gas atomized ; plasma rotation electrode process ; powder characteristics ; residual stresses ; selective laser melting (SLM) ; finite element modeling (FEM) ; triply periodic minimal surface (TPMS) ; copper corrosion ; liquefied petroleum gas ; H2S corrosion ; SEM ; XPS ; CLF-1 steel ; microstructure ; mechanical properties ; in-situ alloying ; composition inhomogeneity ; computer simulation ; processing map ; laser powder bed fusion ; graphene ; high temperature ; mechanical property ; alumina ; cobalt-chromium-molybdenum alloy ; electroless plating ; friction performance ; implants ; Laser Powder Bed Fusion ; defects ; process parameter ; powder bed fusion ; surface roughness ; porosity ; residual stress ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science
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  • 17
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-03-07
    Description: In this reprint, state-of-the-art research and review articles on emerging material systems for additive manufacturing (AM) are collected, with a focus on the process–structure–properties relationships. Additive manufacturing (AM) has grown and evolved rapidly in recent years. There are many exciting research and translational works in many areas of application, such as biomedical, aerospace and electronics. These advancements are typically coupled with materials development, which has resulted in more functionalities added to 3D-printed parts, such as multi-material fabrications and integration with machine learning or digital twins. Such enhancements in functionalities have enabled the evolution of AM from a rapid prototyping tool to an actual manufacturing solution. In this reprint, two reviews and thirteen original research articles are included to highlight the latest development in the field of materials science for AM.
    Keywords: titanium scaffolds ; 3D printing ; pore design ; selective laser melting ; lattice structures ; torsion ; design ; additive manufacturing ; functionally gradient lattice ; torsional stiffness ; energy absorption ; failure behavior ; ferritic steel ; heat treatment ; SLM ; nuclear application ; laser powder bed fusion ; solidification crack ; hot crack ; aluminum alloy powder ; EN AW-5083 ; AA5083 ; AlSi10Mg ; powder bed fusion ; metal matrix composites ; laser powder-bed fusion ; aluminum alloys ; reinforcement ; ceramic particulates ; grain refinement ; crystallographic texture ; mechanical properties ; laser-directed energy deposition ; melt pool ; process maps ; multi-fidelity Gaussian process ; Bayesian Optimization ; uncertainty quantification ; K418 alloy ; orientation ; phase ; microhardness ; color 3D printing ; penetration depth ; chromaticity ; image-based metric ; color reproduction ; Ti-24Nb-4Zr-8Sn ; titanium alloy ; biomedical engineering ; microstructure ; X-ray diffraction ; directed energy deposition ; shape-memory alloys ; joining of metals ; elemental powders ; 3D concrete printing (3DCP) ; hybrids ; geopolymer ; frost resistance ; UV radiation ; thermal conductivity ; surface finishing ; physical vapor deposition ; composites ; recycling ; polymer-matrix composites (PMCs) ; direct ink writing ; liquid deposition modeling ; glass fibers ; stainless steel ; AISI 316L ; AISI 630 (17-4PH) ; AISI 420 ; AISI 440C ; carbon content ; online monitoring ; electron beam melting ; n/a ; bic Book Industry Communication::M Medicine ; bic Book Industry Communication::M Medicine::MJ Clinical & internal medicine::MJC Diseases & disorders::MJCL Oncology
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  • 18
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-04-05
    Description: Additive manufacturing (AM) has been at the center of attention of studies and industry. The AM process involves gradual build-up in layers, and capability in the fabrication of complex shapes with low cost. Advances in the processing of polymers and polymer composites with this method are in the domain of this journal, which can provide a vital resource for anyone involved in additive manufacturing. This Special Issue cover original reviews and research articles dedicated to: AM processes of manufacturing and materials; Process–microstructure/morphology–properties relationships; Optimization of process parameters; Mechanical properties of fabricated parts; Modeling and simulation.
    Keywords: hybrid bio-inspired design ; nacre ; woodpecker beak ; mechanical performance ; failure mode ; finite element simulation ; Taguchi design ; ANOVA ; FFF ; response surface ; cylindricity ; process optimization ; polymer gear ; additive manufacturing ; differential pressure vacuum casting ; polyurethane resin ; abrasion ; fused filament fabrication ; temperature distribution modelling ; dynamic and static model ; thermal history ; impeller ; polymers ; polymer composites ; manufacturing process ; conventional manufacturing ; injection moulding ; performance ; face mask ; medical devices ; filtration performance ; 3D reconstruction ; customized implant ; PEEK ; accuracy evaluation ; finite element analysis ; 3D printing ; fused deposition modeling ; tensile testing ; infill rate ; crystallizable PET ; micromechanical model ; viscoplasticity ; temperature effect ; biaxial loading ; polylactic acid (PLA) ; dimensional deviation ; definitive screening design ; desirability function ; material extrusion ; rheological behavior ; mechanical properties ; temperature profile ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 19
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-09
    Description: This reprint presents groundbreaking discoveries, practical techniques, and rigorous analyses related to the cultivation, preparation, and exploitation of mycelium composites. The papers cover a wide range of topics, including functional modifications of mycelium with inorganic particles, modifying and assessing the mechanical properties of mycelium composites, strategies for improving the flexural behaviour of composites, beehives from fungal materials, bio-welding and reinforcement of composites, bioreactors for fungal production, co-production of composites by fungi and bacteria, growing large-scale mycelium structures, sound absorption by composites, and the geometrical parameterisation of fungi. This informative compendium of techniques, methods, and insights on growing fungal material appeals to readers from all walks of life, from high school pupils to university professors, from mathematicians, computer scientists, and engineers to chemists, from craft practitioners to industrial producers of fungal materials, and from biologists to architects and artists.
    Keywords: mycelium-based composites ; additive manufacturing ; bio-based materials ; circular construction ; digital fabrication ; mycelium ; bio-composites ; bio-fabrication ; ultrasonic welding ; wood printing ; robotic fabrication ; reinforced composites ; natural fiber reinforced polymers ; NFRP ; growing materials ; rattan ; lightweight structure ; architecture ; structural design ; computational design ; subtractive manufacturing ; circular economy ; compressive structures ; compressive strength ; digital image correlation ; masonry ; growth ; mechanical properties ; materials science ; mycelium-based composite ; biomaterials ; natural composites ; bacterial cellulose ; biocompatibility ; knitted fabric ; material tinkering ; lignocellulosic fibers ; natural fiber reinforcement ; mechanical characteristics ; manufacturing variables ; nanoclay ; fungal fruiting bodies ; parametric design thinking ; plasticity ; linearity ; non-linearity ; biohybrid architecture ; bio fabrication ; living architecture ; beehive ; 3D printing ; mycelium materials ; symbiosis ; multispecies architecture ; healthy materials ; binding capacity ; bio-adhesives ; building biomaterials ; fungal mycelium ; mechanical performance ; acoustic materials ; sound absorption ; fungal architecture ; myceliated material ; living material ; sustainability ; biotechnology ; compression ; bending ; waste upcycling ; mycoremediation ; myco-materials ; myco-fabrication ; sustainable buildings ; sustainable structures ; architectural design ; material ethics ; modular chain bioreactor ; solid-state fermentation ; mycelium production ; Ganoderma lucidum ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
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  • 20
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-20
    Description: There is increasingly intensive research for energy storage technologies development due to the enhanced energy needs of the contemporary societies. Increased global energy consumption results in the reduction in the availability of traditional energy resources, such as coal, oil and natural gas. Therefore, there is an urgent need for new systems development based on the conversion and storage of sustainable and clean energy. Phase change materials (PCMs) are one of the key components for the development of advanced sustainable solutions in renewable energy and engineering systems. In order to update the field of renewable energy and engineering systems with the use of PCMs, a Special Issue entitled “Phase Change Materials: Design and Applications” is introduced. This book gathers and reviews the collection of ten contributions (nine articles and one review), with authors from Europe, Asia and Americam accepted for publication in the aforementioned Special Issue of Applied Sciences.
    Keywords: phase change materials ; thermal energy storage ; energy efficiency ; building applications ; construction materials ; phase-change material ; dispersion ; thermal-mechanical stability ; viscosity ; supercooling ; nucleating agent ; cold storage ; battery cooling ; LPMO ; Fourier Transform ac Voltammetry (FTacV) ; cyclic voltammetry ; Direct Electron Transfer (DET) ; lathrate hydrate ; tetrabutylammonium acrylate (TBAAc) ; crystal growth ; ultrasonic vibration ; polyurethane elastomers ; microencapsulated PCMs ; thermal properties ; mechanical properties ; phase change material ; sugar alcohol ; erythritol ; latent heat storage ; thermal stability ; degradation kinetics ; PCM ; mini-channels ; air ; melting ; solidification ; latent heat thermal energy storage ; phase change materials (PCM) ; macro-encapsulation ; rectangular slab ; experimental study ; sodium nitrate ; thermal conductivity ; microencapsulation ; latent heat ; multicriteria decision ; finite element ; automotive ; energy storage ; n/a ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PH Physics
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  • 21
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-04-05
    Description: Analytical chemistry is bound to face growing challenges in the future, especially for the quantification of trace analytes in complex matrices. Although the development of increasingly sensitive and specific instrumental techniques has achieved remarkable results, sample preparation is still a fundamental step, often limiting the whole workflow. In the context spawned by the recent international environmental policies that are responsive to the rapport of human activities with the surrounding environment, chemistry cannot hesitate to give its contribution. Almost pioneeringly, in analytical chemistry, we have been talking for some time about “green analytical chemistry”, its guiding principles, and the development of eco-friendly analytical approaches. However, the new and still open challenge is advance not only in eco-compatibility but mainly in eco-sustainability, rooting the future of analytical chemistry in new perspective aimed at minimizing the environmental impact of the analytical process by placing environmental cost as a priority aim on par with analytical performance. This is the reprint of a Special Issue that includes contributions focused on the progress in analytical chemistry based on the arguments previously raised and discussed, with a particular reference to eco-compatibility and eco-sustainability. The contributions include the development of low environmental impact methods and/or techniques or their applications.
    Keywords: dyes ; fatty acids ; microextraction ; magnetic ionic liquid ; sample preparation ; dispersive liquid–liquid microextraction ; single drop microextraction ; GC ; HPLC ; ionic liquids ; denitrogenation ; extraction ; pyridine ; quinoline ; aniline ; simulated oil ; adsorption ; gum Arabic ; magnetite ; nano-composite ; lead(II) ; mercury removal ; magnetic ; manganese ; cobalt ; iron ; spinel ; crosslinker ; phenolic acids ; vinylimidazole ; anion exchanger ; co-polymer ; solid-phase extraction ; sustainable analytical sample preparation ; indoor air quality ; fragrances ; indoor pollution ; endocrine disruptors ; analytical method ; GC-MS ; musks fragrances ; emerging contaminants ; α-isomethylionone ; halloysite nanotubes ; organosilyl-sulfonated halloysite nanotubes ; solid phase extraction ; pyrrolizidine alkaloids ; honey ; chlorzoxazone ; greener HPTLC ; paracetamol ; simultaneous detection ; validation ; AGREE ; traditional HPTLC ; vitamin D3 ; pulsed electric field ; bioactive compounds ; optimization ; mushrooms ; Agaricus bisporus ; phenyboronic-acid-functionalized ; Fe3O4 magnetic nanoparticles ; ortho-dihydroxy-containing compounds ; n/a ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PN Chemistry
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  • 22
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-04-05
    Description: Civil engineering structures may vibrate due to different sources of excitations such as earthquakes, wind, traffic, humans, etc. The resulting vibrations may not be acceptable from the perspective of vibration comfort or can even impair the structure's safety. Depending on the excitation mechanism, anti-vibration measures range from increasing the structural damping using local dampers, decoupling the structure from the disturbance using vibration isolators and compensating for the excitation forces using vibration compensators. The Special Issue "Efficient Damping and Isolation Systems for Civil Structures" presents some of the recent advances in the associated fields of research and development.
    Keywords: isolation ; high damping rubber bearing ; low shape factor ; performance test ; experiment ; three-dimensional (3D) seismic isolation ; vertical seismic isolation device ; disc spring ; helical coil spring ; steel damper ; laminated rubber bearing ; seismic energy dissipation ; nuclear power plant equipment ; seismic isolation frequency ; hysteretic behavior ; cable ; control ; damping ; semi-active ; negative stiffness ; vibration ; liquid storage tank ; MetaFoundation ; time domain analysis ; earthquake ; passive control ; stop band ; suspended ceiling systems ; passively controlled structure ; pulley tackle mechanism ; shake table test ; simulation analysis ; tower-like structures ; tuned liquid gas damper ; elastic membrane ; gas spring ; gas volume ; SA-TLGD ; TLCGD ; TLCD ; TMD ; inerter ; optimization ; TMDI ; vibration mitigation ; tuned sloshing damper ; TSD ; tuned mass damper ; numerical simulation ; coupled simulation ; computational wind engineering ; CWE ; hysteresis ; internal resonances ; nonlinear modal interaction ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 23
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-01-05
    Description: The papers published in this Special Issue report on recent studies investigating the exploitation of by-products produced by the food industry. The topics investigated include the extraction setups used for valuable food waste by-products and their applications as adjuncts to food preparation; the appropriate selection of solvents and extraction processes; and the interactions between extracted fractions and supplementary foods. The papers evaluate a wide variety of foodstuffs and provide results regarding the extension their shelf-lives and activities as functional foods.
    Keywords: by-product ; rheological properties ; optimization ; melting profile ; antioxidant activity ; mayonnaise ; olive mill wastewater ; oxidative stability ; phenolic extract ; pork ; fatty acid ; amino acid ; mineral ; meat ; sustainability ; spent biomass ; prebiotic potential ; enzymatic digestion ; biorefinery ; circular economy ; by-products ; ovine scotta ; bioactive peptides ; bromelain ; pancreatin ; dipeptidyl peptidase IV inhibition ; ovine second whey cheese ; enzymatic hydrolysis ; wasted bread ; bioprocessing ; lactic acid bacteria ; soil amendment ; byproducts ; vegetable oil industry ; phenolics ; flavonoids ; photochemiluminescence ; cold-pressed oil by-product ; gum ; thixotropic behavior ; low-fat vegan mayonnaise ; thickeners ; gelling agents ; tomato pomace ; lycopene ; β-carotene ; extraction ; food by-products ; deep eutectic solvents ; non-thermal drying ; stilbene ; vine shoots ; viticulture waste ; trans-resveratrol ; ε-viniferin ; Italian varieties ; no-waste ; omega-3 ; smart sensors ; reuse ; fish oil industry ; recovery ; chemometrics ; lipid profile ; aquafaba ; cold-pressed oils ; confocal laser scanning microscopy ; egg replacement ; physicochemical properties ; radical scavenging activity ; vegan mayonnaise ; Amberlite resin ; hazelnut skin ; polyphenols ; Pinot noir pomace ; solid–liquid extraction ; valorization ; fatty acids ; derivatization ; cranberry pomace ; dietary fiber ; technological properties ; kiwi byproducts ; probiotic ; prebiotic ; Lactobacillus casei ; ingredients ; functional foods ; microbial spoilage ; lipidic oxidation ; antioxidant ; predictive microbiology ; food preservation ; food safety ; sustainable strategy ; by-product reuse ; kinetic parameters ; Olea europaea ; waste reuse ; inulin ; high polymerization degree ; functional pasta ; glycemic index ; prebiotics growth ; n/a ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PS Biology, life sciences ; bic Book Industry Communication::T Technology, engineering, agriculture
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  • 24
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-02
    Description: The sustainable development of our planet depends on the use of energy. The increasing world population inevitably causes an increase in the demand for energy, which, on the one hand, threatens us with the potential to encounter a shortage of energy supply, and, on the other hand, causes the deterioration of the environment. Therefore, our task is to reduce this demand through different innovative solutions (i.e., both technological and social). Social marketing and economic policies can also play their role by affecting the behavior of households and companies and by causing behavioral change oriented to energy stewardship, with an overall switch to renewable energy resources. This reprint provides a platform for the exchange of a wide range of ideas, which, ultimately, would facilitate driving societies toward long-term energy efficiency.
    Keywords: natural resources ; globalization ; energy ; nonparametric causality in quantiles ; energy security ; power market ; near-zero emission technologies ; oxy-fuel combustion cycles ; emission rights sales mechanism ; economic assessment ; Oil Companies ; innovations ; investments in R&amp ; D ; forecasting the Innovation activities ; industry 4.0 ; Agenda 2030 ; sustainable human development ; measuring development ; energy sustainability ; indirect measurement ; composed indexes ; forecasting ; linear regression ; planning ; polynomial regression ; power supply ; green building ; housing projects management ; sustainable construction ; renewable energy sources ; real estate developers ; deviation ; energy dependence ; energy efficiency management ; energy saving ; cost ; risk limit ; energy industry ; energy supply ; energy intensity ; energy efficiency ; energy industry risks ; dilemma ; development ; Kazakhstan ; energy transitions ; Latin America ; power system ; sustainability ; economic growth ; pollution ; renewable energy ; oil and gas industry ; investments ; rating ; competitiveness ; financial analysis ; risk ; profitability ; merchandising technologies ; correlation ; scenario ; social development ; optimization ; investment ; financial portfolio ; financial leverage ; integral rating ; industry rating ; high-tech company ; decision-making ; minimax ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::K Economics, finance, business & management::KC Economics::KCN Environmental economics
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  • 25
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: In the last decade, design and material innovations for manufacturing composites have reached new heights. Thermoplastic polymers and their composites have become the most in-demand materials in recent times as they provide numerous advantages over thermoset composites. Thermoplastic polymers have a high damage tolerance, high impact resistance, recyclability, formability, weldability, repairability, and cost-effectiveness compared with thermoset composites. Thermoplastic polymers and composites are widely used in automotive, aerospace, electrical and electronics, industrial, and medical applications. Thermoplastic composites are estimated to grow from USD 28.0 billion in 2019 to USD 36.0 billion by 2024. High-performance thermoplastic materials are used in conjunction with a multitude of manufacturing processes like injection moulding, thermoforming, prepreg, liquid injection processes, automated tape placement, filament winding, pultrusion, additive manufacturing, and other processes. The material limits, design, and assembly requirements, as well as the processing constraints, are significantly important for the realisation of novel product development using a manufacturing process by simultaneously optimising reliability, safety, and other performance-related issues. The current thermoplastic material systems and manufacturing techniques still have plenty of room for optimisation and advancement. This reprint presents the latest scientific and technical advances in thermoplastic materials and their composites, processing, characterisation, product development, and manufacturing process parameter optimisations.
    Keywords: thermoplastic composites ; automated tape placement ; fibre misalignment ; voids ; CT scan ; circular distribution ; textured surface ; scratch ; scratch resistance ; thermoplastic polymer ; finite element modelling ; antimicrobial ; metallic ions ; ligand ; copper nanoparticles ; polypropylene ; thermoplastic resin ; process modeling ; filament winding ; automated fiber placement ; EWF ; polymer-layered silicates ; oMMT ; clay minerals ; mechanical properties ; nanocomposite ; physio-thermo-mechanical properties ; polyurethane ; polymers ; bio-applications ; energetic binder ; block copolyurethane ; sensitivity ; mechanical property ; thermal behavior ; bone scaffold ; recycled bone powder ; chitosan ; PLA ; PCL ; antibacterial activity ; aircraft cabin interior panels ; optimal curing of prepregs ; foams ; non-structural composite panels ; thermoplastic starch ; nanocomposites ; biopolymers ; properties ; packaging ; nanofiller ; vacuum forming ; thermoplastic face sheets ; polyphenylene sulfone ; cardo fragments ; IR spectroscopy ; heat resistance ; thermostability ; FDM ; oil palm fiber ; ABS ; rheology ; 4D printing ; material programming ; digital fabrication ; shape-memory polymers ; PPS ; carbon nanotubes ; thermal analysis ; electrical properties ; rheological properties ; resin transfer molding ; non-crimp fabrics ; consolidation ; ultra-high molecular weight component ; rheological property ; crystallization behavior ; polyimide foam ; rigid closed-cell foam ; high temperature ; benzimidazole ; polyamide 12 ; carbon nanofiller ; carbon nanotube ; graphene nanoplatelet ; 3D printing ; thermal conductivity ; compound ; fluorinated aromatic polyimide ; low dielectric loss ; molecular chain orientation ; molecular dynamics simulation ; long-fiber-reinforced thermoplastic ; fiber length ; fiber orientation ; injection molding ; hollow composite tubes ; bending ; failure mechanisms ; in situ consolidation ; void content ; processing parameters ; thermosetting resins ; thermoplastics ; co-bonding ; interphase ; diffusion ; adhesion ; phosphorescent composites ; compatibilizer ; thermal and mechanical ; composite ; thermoplastic ; thermoforming ; simulation ; Taguchi ; DOE ; oil palm fiber composites ; 3D composites ; thermoset ; off-axis flexure behaviour ; on-axis flexure behaviour ; hybrid fibers ; hybrid composites ; vacuum assisted resin infusion (VARI) ; fracture toughness ; fractography ; reinforcements ; thermal properties ; biobased polymer composites ; polymer modification ; PBAT ; starch ; microcrystalline cellulose ; biodegradable ; polyethylene glycol ; poly(butylene adipate-co-terephthalate) ; supercritical CO2 ; foam ; thermoplastic matrix composites ; impregnation processes ; manufacturing ; fiber reinforced ; processing ; retrogradation ; extrusion ; co-plasticization ; isosorbide ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGM Materials science
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This reprint aims to address the challenges modern-day buildings face in the context of high energy and resource consumption and climate change. One of the ways to address the issues is holistic design and operation of high-performance buildings in the area of energy efficiency, occupant health, and comfort. All this should be achieved through synergic interconnectedness between parameters such as the indoor–outdoor environment, sustainability, and resilience. Through different chapters, this reprint highlights the key areas, namely, the optimization of building design parameters, the impact of the use of modern-day phase-change materials, the adaptation of occupants and buildings to climate change, the mitigation of urban overheating by cool roofs, and reducing energy demand and CO2 emissions.
    Keywords: climate change ; bioclimatic design ; passive design ; energy efficiency ; overheating ; building resilience ; robustness ; shape factor ; building ; thermal envelope ; energy demand ; CO2 emissions ; white roofs ; cool roofs ; reflective material ; cost-benefit ; energy savings ; urban heat island ; thermal comfort ; indoor environmental quality ; educational buildings ; energy consumptions ; local discomfort ; building energy retrofitting ; phase change materials ; aerogel render ; heat stress risk ; emission ; lifecycle cost ; peak cooling load ; residential building ; building envelope ; multi-objective genetic algorithm ; TRNSYS ; climate zone ; multi-criteria decision making ; CRITIC ; TOPSIS ; capture devices ; variables ; field surveys ; thermal perceptions ; adaptive actions ; hostel dormitories ; composite climate of India ; reflective materials ; mitigation ; outdoor comfort ; visual comfort ; heat stress ; optimization ; skyscrapers ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-28
    Description: We are honored to announce this reprint, containing contributions from the top experts in the field of logic and fuzzy logic. In total, this reprint consists of 10 papers that were selected from more than 20 submissions. The 10 papers comprising the reprint are the product of re-known experts in fuzzy logic from all over the world, such as Canada, Poland, China, Slovakia, Lithuania, Turkey, Pakistan, Germany, Serbia, Portugal, Taiwan, Norway, India, Saudi Arabia, Thailand, and Mexico. We expect that the papers comprising the Special Issue will contribute to an advancement in the state of the art in the fields of logic and also fuzzy logic.
    Keywords: fuzzy-sets ; fuzzy-random variables ; distribution generating function ; fuzzy binomial distribution ; Fuchs distribution ; MADM ; Aczel–Alsina operations ; IVIFNs ; IVIF Aczel–Alsina geometric aggregation operators ; interval type-3 fuzzy theory ; fuzzy control ; manufacturing ; Vietè’s method ; Newton–Raphson method ; regula falsi method ; testing of algorithms ; foundations of mathematics ; arithmetic ; set theory ; spatial fuzzy C-means ; COVID-19 ; rustbelt states ; extrapolation ; interpolation ; proving ; refuting ; improving ; fuzzy set ; linear Diophantine fuzzy sets ; linear Diophantine fuzzy relations ; level cut relations ; rough approximations on two universes ; decision analysis ; multi-valued logic trees ; hydraulic proportional valve ; weighting factors ; optimization ; granular computing ; formal concept analysis ; intuitionistic fuzzy sets ; periodicity ; spatial and temporal aspects ; knowledge discovery ; n/a ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general ; thema EDItEUR::P Mathematics and Science
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-02
    Description: This book presents recent advances in the field of bone tissue engineering, including molecular insights, innovative biomaterials with regenerative properties (e.g., osteoinduction and osteoconduction), and physical stimuli to enhance bone regeneration.
    Keywords: bone ; collagen type I ; alginate ; conditioned medium ; viability ; MSC ; osteogenesis ; pulsed electromagnetic field ; osteogenic factors ; wool keratin scaffolds ; bone tissue engineering ; biocompatibility ; biomaterials ; bone augmentation ; bone conduction ; bone grafting ; calcium hydroxyapatite ; tissue regeneration ; dental implants ; osseointegration ; osteoporosis ; zoledronate ; animal model ; titanium membrane ; titanium foil ; occlusive titanium barrier ; guided bone regeneration ; osteoporotic condition ; xenograft ; bone regeneration ; titanium implants ; additive manufacturing ; reused powder ; unit cell topology ; tissue engineering ; mechanical properties ; stem cells ; surface functionalization ; titanium ; protein adsorption ; surface modifications ; cell interactions ; collagen hydrogel ; cell delivery ; olfactory ectomesenchyme stem cells ; bioactive glasses ; alkali-free ; sol–gel ; bone remodeling ; bone disorders ; biomechanics ; scaffolds ; microenvironment ; 3D bioprinting ; computational modeling ; bone implant ; bone defects ; chitosan ; degree of deacetylation ; bone formation ; X-ray micro CT ; histology ; sheep tibia ; bic Book Industry Communication::M Medicine
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-04-05
    Description: The direction of fiber orientation plays a crucial role in deciding the mechanical performance of textile structural composites. Unlike conventional composite materials, geometrically oriented textile structures, e.g., woven, knitted, and braided constructions, can be designed and developed for load bearing in a particular direction. Their properties can be enhanced by modifying the geometry and material composition. One major challenge in producing textile structural composites with superior mechanical properties at a reasonably lower price is cost effective prepreg. Composites constructed from reinforcement having a well-defined geometry perform better than randomly oriented fibers at a reasonable cost. Their flex fatigue is superior to conventional preforms in specific applications. This Special Issue invites research as well as review articles dealing with different types of (2D, 3D, multiaxial) woven, knitted, and braided structures for load bearing structural composite applications. Use of industrial multifilament yarns of pure and hybrid composition in textile geometrical reinforcement structures can also be included. The methods of impregnation of such structures by thermoplastic and thermoset resins should be described. The superior performance in such structural composites must be highlighted. Methods of characterizing woven, knitted, and braided textile reinforced composites is the focus of this issue. Current and future applications of advanced textile structural composites can be summarized in the submitted articles. Theoretical (computational, numerical simulation etc.) as well as experimental work can be submitted with sufficient scientific innovation.
    Keywords: hybrid composite ; polyester waste fiber ; olive root fiber ; coir pith filler ; building materials ; mixture design analysis ; recycled cotton ; glass ; hollow knitted composite ; compression ; flexural modulus ; impact energy ; quasi-static test ; cyclic fatigue ; wavy-lap bond ; natural cotton fabric ; polymer composite ; mechanical properties ; service life ; safety ; SEM ; pressure-actuated cellular structure ; shape morphing ; compliant mechanism ; anisotropic flexure hinges ; textile-reinforced polymer composite ; integrally woven structure ; resin ; glass cloth ; substrate ; glass transition temperature ; surface finish ; pad cratering ; thermal resistance ; textile structural composite ; 3D weaving ; hollow structure ; spacer fabric ; woven honeycomb ; sandwich ; waste cotton ; impact ; flexural rigidity ; hybrid woven reinforcement ; preforming ; carbon-Kevlar ; epoxy resin ; add-on (%) ; amount of hardener (%) ; curing temperature ; curing time ; molding pressure ; fiber composites ; FRP ; architecture ; architectured materials ; hysteresis ; auxetic ; non-Newtonian fluids ; low-velocity impact ; personal protection ; n/a ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PS Biology, life sciences ; bic Book Industry Communication::P Mathematics & science::PS Biology, life sciences::PSB Biochemistry
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: There has been significant growth in branches of industry directly related to new materials, such as metals, polymers, and composite materials. Considering the increase in material costs, it has become exceedingly important to produce lightweight constructions through the use of certified materials with appropriate mechanical properties. Many composite materials, especially in building engineering, are characterized by the use of waste materials, allowing them to meet environmental demands and often also positively affecting the performance (as well as mechanical) properties of the whole construction. A similar phenomenon has been noticed in polymers and metals, with the “ecologically friendly” factor having increasing influence in such materials. The main aim of our Special Issue was to gather novel research results concerning different materials available for all important industries—building engineering, the heavy industry, automotive, aerospace, and medicine. Such a general title has been proposed to also include different manufacturing technologies using various materials—conventional (milling, casting, forming, and turning) and novel (hybrid and additive manufacturing).
    Keywords: additive manufacturing ; powder bed fusion ; 316L stainless steel ; ultrasonic atomization ; gas atomization ; three-point bending ; polyamide-based composites ; fused filament fabrication ; concrete additives ; concrete fibers ; concrete strength tests ; threshold effect ; flake graphene ; graphene oxide ; reduced graphene oxide ; lubricants ; grease ; fatigue life prediction ; CuZn37 brass ; machine learning ; IPCs ; ceramic preform ; ceramic–elastomer composite ; silane coupling agent ; hot isostatic pressing (HIP) ; wettability ; mechanical properties ; mechanical engineering ; laser powder bed fusion ; 21 NiCrMo2 steel ; process parameters ; post-heat treatment ; torsional strength ; cellular structures ; 20MnCr5 Steel ; cement–glass composite bricks ; digital image correlation analysis ; material extrusion ; PET-G ; waste disposal ; hybrid additive manufacturing ; lattice structures ; hot isostatic pressing ; fatigue behaviour ; polymer–straw boards ; thermoplastic polymers ; annual plants ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGM Materials science
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: In this reprint, state-of-the-art research and review articles on emerging material systems for additive manufacturing (AM) are collected, with a focus on the process–structure–properties relationships. Additive manufacturing (AM) has grown and evolved rapidly in recent years. There are many exciting research and translational works in many areas of application, such as biomedical, aerospace and electronics. These advancements are typically coupled with materials development, which has resulted in more functionalities added to 3D-printed parts, such as multi-material fabrications and integration with machine learning or digital twins. Such enhancements in functionalities have enabled the evolution of AM from a rapid prototyping tool to an actual manufacturing solution. In this reprint, two reviews and thirteen original research articles are included to highlight the latest development in the field of materials science for AM.
    Keywords: titanium scaffolds ; 3D printing ; pore design ; selective laser melting ; lattice structures ; torsion ; design ; additive manufacturing ; functionally gradient lattice ; torsional stiffness ; energy absorption ; failure behavior ; ferritic steel ; heat treatment ; SLM ; nuclear application ; laser powder bed fusion ; solidification crack ; hot crack ; aluminum alloy powder ; EN AW-5083 ; AA5083 ; AlSi10Mg ; powder bed fusion ; metal matrix composites ; laser powder-bed fusion ; aluminum alloys ; reinforcement ; ceramic particulates ; grain refinement ; crystallographic texture ; mechanical properties ; laser-directed energy deposition ; melt pool ; process maps ; multi-fidelity Gaussian process ; Bayesian Optimization ; uncertainty quantification ; K418 alloy ; orientation ; phase ; microhardness ; color 3D printing ; penetration depth ; chromaticity ; image-based metric ; color reproduction ; Ti-24Nb-4Zr-8Sn ; titanium alloy ; biomedical engineering ; microstructure ; X-ray diffraction ; directed energy deposition ; shape-memory alloys ; joining of metals ; elemental powders ; 3D concrete printing (3DCP) ; hybrids ; geopolymer ; frost resistance ; UV radiation ; thermal conductivity ; surface finishing ; physical vapor deposition ; composites ; recycling ; polymer-matrix composites (PMCs) ; direct ink writing ; liquid deposition modeling ; glass fibers ; stainless steel ; AISI 316L ; AISI 630 (17-4PH) ; AISI 420 ; AISI 440C ; carbon content ; online monitoring ; electron beam melting ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGM Materials science
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-11-30
    Description: With the deep integration of cutting-edge technologies such as artificial intelligence, big data, and the Internet, ship propulsion control systems are also gradually undergoing a transformation from the mode of automatic control to intelligent control. In particular, the smart ship concept has become a key factor in the maritime industry’s ambition to achieve sustainable green development. Currently, the development of all-electric propulsion and innovative hybrid ship propulsion systems is a priority, so that the efficiency of ship propulsion systems might be improved. Therefore, the aim of this monograph is to describe the intelligent control of ship propulsion systems. In this regard, this monograph deals with new approaches to the design of ship power systems. Among them, in terms of intelligent control, and using simulation experiments for comparison, the learning ability relied on by artificial intelligence is utilized to handle the collected data and generate corresponding commands, thus ensuring the safety and stability of the ship's movement. The main objective of this Special Issue is to fill existing knowledge gaps and provide additional ideas on the intelligent control of marine propulsion systems. Finally, we would like to express our deepest gratitude to the staff of MDPI Books and the editorial team of Marine Science and Engineering, especially the assistant editors of this Special Issue, the gifted authors, and the diligent and expert reviewers.
    Keywords: automation ; autonomous guidance ; green propulsion technologies ; marine engine ; safety and efficiency ; ship propulsion dynamics ; simulation ; smart control ; optimization ; weather routing ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: A collection of articles published under the guidance of Assoc. Prof. Ph.D. Andrei Victor SANDU in the Special Issue "Obtaining and Characterization of New Materials, Volume II". The published articles under this Special Issue represent an excellent collection of research and review articles with cutting-edge results that promote sustainable development in the field of material engineering.
    Keywords: sheep wool thermal-insulating mattresses ; air quality ; water vapor permeability ; formaldehyde ; road concrete ; porosity ; (NMR) relaxometry ; freeze–thaw ; blast furnace slag ; bismuth ; intermetallic compound ; IMC thickness ; mechanical properties ; isothermal annealing ; geopolymer ; fly ash ; GGBFS ; compressive strength ; soil stabilization ; flowable composite resin ; hydrochloric acid ; surface roughness ; toothbrush ; thermal insulation ; recycling ; polyethylene terephthalate (PET) ; polyester (PES) ; natural fibres ; sheep wool ; chia seed oil ; fatty acids composition ; epoxidized vegetable oil ; epoxy equivalent weight ; shear thickening fluids ; aging ; lightfastness ; product degradation ; rigid pavement ; fly ash based geopolymer ; acid resistance ; selective laser sintering ; spread the powder quality ; parameter optimization ; DEM ; RSM ; NSGA-II ; 9K medium ; bioleaching ; Thiobacillus ferrooxidans ; pollution indices ; ecological risk ; polyoxyethylene alkyether sulphate foam ; blended geopolymer foam ; high temperature ; pre-foaming method ; hydroxyapatite ; lysine ; inorganic–organic composite ; glassy carbon electrode ; electrode coating ; electrochemical analysis ; Nile blue A ; multi-beam box girder bridge ; ESP strengthening ; field test ; load lateral transferring performance ; structural stiffness ; densified wood ; ammonia ; Brinell hardness ; Paulownia ; hornbeam ; geopolymers ; laser sintering ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGM Materials science
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-09-11
    Description: This Special Issue aimed to collate recent works regarding the planning and control of energy systems. In particular, this Special Issue focuses on microgrids. This kind of system enables optimal integration of renewable energy sources, electric vehicles, energy storage, and demand-side management strategies, thus proposing a valuable framework through which to implement the decarbonization of the electricity sector. Special attention is given to those works devoted to systems with high penetration of renewables and advanced demand response strategies. Literature reviews are also included in this Special Issue, and some real-life experiences are described and analyzed.
    Keywords: optimization algorithm ; control system ; renewable energy ; PSO ; GWO ; battery storage energy ; electric vehicle ; photovoltaics ; BESS ; optimization ; AOA algorithm ; uncertainty ; distribution network ; DC multi-microgrid system ; carbon emissions ; economic dispatch ; across-time-and-space energy transmission ; cooperative multi-objective optimization ; PV ; wind turbine ; biomass system ; heap-based optimizer ; Franklin’s and Coulomb’s algorithm ; sooty tern optimization ; energy cost ; metaheuristics ; solar cell systems ; elephant herding optimization ; alpha tuned EHO ; cultural-based ; biased initialization ; parameter identification ; single diode ; double diode ; three diodes ; modular multilevel converter (MMC) ; fault-tolerant ; voltage source modular multilevel converter (VSMMC) ; SPWMLSC ; SPWMPSC ; STHILSC ; STHIPSC ; optimal energy management ; multi-agent system ; multi-energy carrier ; renewable energy sources ; microgrids management ; renewable energy resources ; isolated microgrids ; optimization techniques ; demand-side management (DSM) ; distributed generations (DGs) ; energy management systems (EMS) ; renewable energy sources (RES) ; waste to energy (W2E) ; microgrid architecture ; smart infrastructure ; resilience ; optimization model ; critical node identification ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-28
    Description: System dynamics is a simulation modeling approach to strategic and policy analysis that has been applied to many health care and public health issues since the 1960s and has become increasingly prevalent since the 2000s. The ten articles in this reprint appeared in a Special Issue of Systems and cover a broad cross-section of relevant methodological topics as well as applications to specific health problems.One methodological article describes the use of cascaded system archetypes, with an application to reducing hospital congestion. Another discusses Monte Carlo uncertainty analysis, with an application to the US opioid crisis. Three of the articles describe models of community response to severe shocks, including recovery from the COVID-19 pandemic. Two other articles address strategies for dealing with myriad chronic diseases and risk factors in a population. Other papers include in-depth analyses of prostate cancer screening, digital prosthetic services for lower-limb amputees, and the complex behavioral health challenge of youth homelessness.This reprint provides an excellent snapshot of the current state of practice in system dynamics as it is applied to public health, health care delivery, and health policy. It offers practical policy guidance and will be of interest to both experienced practitioners and those new to the field.
    Keywords: simulation model ; public health practice ; chronic disease ; prevention ; cardiovascular diseases ; cancer ; COVID-19 ; tourism recovery ; public policy ; system dynamics ; participatory modelling ; health ; social care ; integrated care ; hospital ; delayed hospital discharges ; strategy ; congestion ; capacity ; archetypes ; unintended consequences ; population health and well-being ; equity ; stewardship ; resilience ; simulation modeling ; uncertainty analysis ; optimization ; sensitivity testing ; Monte Carlo randomization ; opioid epidemic ; prosthetics ; major lower-limb amputations ; prosthesis usage ; amputee mobility ; health care system ; health policy ; youth homelessness ; child welfare ; juvenile justice ; mental health ; public health ; decision making ; long-term conditions ; resource allocation ; complex systems ; early detection of cancer ; mass screening ; decision-making ; dissemination ; clinical practice guidelines ; evidence-based guidelines ; policy decision thresholds ; prostate cancer ; natural history of disease ; biomarker ; PSA ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general ; thema EDItEUR::P Mathematics and Science
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This reprint covers the latest developments in the field of eco-polymeric materials and natural polymer processing and utilization, highlighting cutting-edge research focusing on the processing of advanced polymers and their composites. It demonstrates that the field of eco-polymeric materials and natural polymers is still gaining increased attention. Innovative approaches as well as advanced applications of eco-polymeric materials and natural polymers in different fields, such as energy, environment, biomedical, biomaterial, and engineering, are reported in this reprint.
    Keywords: outdoor wood mats-based engineering composite ; wood-degrading fungi ; decay resistance ; durability ; nanohydrogels ; citral ; sustained-release ; mechanism ; bamboo ; anti-mould ; rosin modification ; round bamboo culm ; visual characteristics ; eye tracking ; surfactant ; urea-formaldehyde resin ; laminated bamboo veneer ; gluability ; wood–plastic composites ; heat transfer modeling ; sweet sorghum ; high-density polyethylene ; hot-pressing ; fibrovascular bundle ; salacca frond ; modified orientation board ; citric acid ; Aquilaria crassna wood ; natural rubber ; antifungal ; lignin ; proteins ; compression performance ; load–displacement curves ; digital image correlation (DIC) ; failure mode ; coupling agent ; interfacial bonding ; oriented strand–thermoplastic composites ; wood veneer–thermoplastic composites ; cross-laminated timber ; stability coefficient ; axial compression ; timber structures ; slenderness ratio ; Chinese pine wood ; pine needles ; bamboo culms ; bamboo leaves ; industrial hemp hurd ; CMC ; DS ; mechanical properties ; TG ; XRD ; FTIR ; chitosan ; tartaric acid ; nanocrystal ; self-assembly ; evaporation ; dehydration of crystallization ; biopolymers ; sustainability ; emergy accounting ; polyhydoxyalkanoates ; slaughterhouse residues ; poly(lactic acid) ; impact modifier ; polymer blends ; properties ; multilayered bamboo fiber ; topochemistry ; microscopic imaging ; gradient micromechanics ; core–shell structure ; hydrogel ; double load ; response surface ; acidic treatment ; colour ; mould-resistant ; starch ; Phyllostachys pubescens ; fibre ; lignification ; micro-morphological regions of cell wall ; syringyl lignin ; guaiacyl lignin ; visible-light spectrophotometry ; electrochemical method ; moisture content ; shrinkage strain ; wood water loss ; konjac glucomannan ; oxidized hyaluronic acid ; hydrogels ; tung oil ; thermal treatment ; color ; cellulose fibers ; adsorption ; Cr(VI) ; sulfhydryl-modified ; water resistance ; bamboo scrimber composite ; bonding interface ; polymer soil consolidation agent ; preparation conditions ; consolidated adhesive film ; compressive strength ; seedling transplanting ; chemical change ; thermal property ; delignification ; pyrolysis ; bamboo microstructure ; shear performance ; test methods ; moso bamboo ; fracture behavior ; shearing characteristics ; transparent bamboo ; optical properties ; functionalization and application ; glycerin ; sodium alginate ; tensile strength ; elongation at break ; poplar ; cell walls ; cross-linking modification ; wood properties ; egg white hydrogel ; dual cross-linking ; metal ions ; secondary structure ; biocompatibility ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGM Materials science
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-02
    Description: The reprint is devoted to the phenomena associated with exact or approximate axial symmetry in different areas of technical physics and mechanical engineering science. How can the symmetry of the problem be used most efficiently for its analysis? Why is the symmetry broken or why is it still approximately retained? These and other questions are discussed based on systems from different fields of engineering.
    Keywords: fretting wear ; axis-symmetry ; tangential contact ; torsional contact ; Abel transform ; injection molding ; concentricity ; coaxiality ; optical barrel ; bilateral telecentric lens ; optimization ; contact problem ; non-axisymmetric indenter ; extremal principle ; generalized MDR ; non-axisymmetric ; circular contact ; frictionless contact ; general solution ; closed-form solution ; series solution ; cylindrical punch ; contact stress-intensity factor ; cylindrical symmetry ; spherical symmetry ; periodic boundary conditions ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-06-23
    Description: The great economic and strategic importance of catalysis makes it a rapidly evolving field. Catalysis is fundamental in areas such as sustainable development, energy production, environmental protection, food production, and water purification. In the face of the significant challenges of the present day, acquiring fundamental knowledge about the structure and phenomena on the surface of catalysts and the relationships between the composition, synthesis method, properties, and performance of catalysts in industrial processes is essential. Research is still needed to improve existing catalysts or design new systems which may efficiently and selectively conduct a given reaction toward the desired product. This Special Issue was devoted to designing and characterizing heterogeneous catalytic systems for industrial chemical processes. The reprint collects 10 research articles providing insight into important aspects of modern catalyst design. The papers cover recent advances and comprehensive experimental studies of synthesis, characterization, and evaluation of catalyst performance in the following processes: ammonia synthesis, selective catalytic reduction of nitrogen oxides, hydrogen production from ethanol, and photocatalysis.
    Keywords: cobalt molybdenum nitrides ; ammonia synthesis ; phase composition ; specific surface area ; cobalt catalyst ; barium ; promoter ; optimization ; hydrogen ; ethanol ; catalyst ; TiO2 photocatalysis ; UV-C ; photolysis ; ammonia ; nitrogen removal ; water treatment ; hydrogen production ; ethanol steam reforming ; nickel-based catalyst ; manganese oxides ; potassium promoter ; gliding discharge ; plasma–catalytic system ; tar decomposition ; nickel catalyst ; nitric acid plant ; selective catalytic reduction ; clinoptilolite ; iron-modified zeolite catalyst ; TiO2-SiO2 ; mesoporous ; F127 ; high surface area ; solar photocatalysis ; dye degradation ; structure sensitivity ; size effect ; carbon support ; neodymium oxide ; support ; hydrogen poisoning ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-04-05
    Description: The second volume of the Special Issue on “Micro-Electro Discharge Machining: Principles, Recent Advancements and Applications” confirms the growing interest in the micro-EDM technology as a suitable and efficient technology for machining novel, multilateral components, with demanding requirements in terms of precision, accuracy, and productivity.This volume consists of 10 original research papers which involve several approaches to micro-EDM and cover the enhancement of the process performance, such as the material removal rate, surface roughness, or machining accuracy, using advanced optimization methods. Some studies also consider several dielectric fluid additives and investigate the processability of new materials. Others investigate the combination of Reverse-micro-EDM with laser beam micromachining or explore new applications for the micro-EDM for fabricating antimicrobial nanosilver colloid.
    Keywords: electrical discharge machining ; metal matrix composite ; Taguchi ; micro-hardness ; surface roughness ; material removal rate ; wire electro-discharge machining ; polymer composite materials ; processing precision ; interelectrode gap ; micro-EDM milling ; accumulative difference ; material removal ; tool electrode wear ; analytical hierarchy process ; residual stress ; metal erosion rate ; Reverse-μEDM ; Nd: YAG LBµM ; micro-holes ; burrs ; protrusions ; electrical discharge machine ; energy consumption ; nanosilver colloid ; antimicrobial ; micro-EDM ; tungsten carbide ; carbon nanofiber ; silicon ; alumina ; shape memory alloys ; nitinol ; optimization ; near-dry wire electric discharge machining (WEDM) ; teaching–learning based optimization (TLBO) algorithm ; micro electrical discharge machining ; vibration assisted electrical discharge machining (EDM) ; high-speed camera ; array electrode ; structured surface ; efficiency ; micromachining ; performance ; quality ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 40
    Publication Date: 2024-04-09
    Description: This reprint is a collection of papers published in a Special Issue that collected the recent advances within and investigations of the research fields of manufacturing and the characterisations or modelling of materials. The variety and quality of all these papers are addressed to both academic and industrial researchers who are looking for new information that can contribute to the advancement of future research in these highly challenging fields.
    Keywords: ATIG welding ; mixing design method ; particle swarm optimization (PSO) ; pseudo-ternary flux ; 316L SS ; mathematical modeling ; mechanical properties ; microstructure ; dynamic deformation behavior ; Cowper-Symonds model ; texture ; Hall–Petch relationship ; textile signal lines ; textronic systems ; data transmission over textiles ; smart textiles ; characteristic impedance ; signal quality tests ; smart garments ; e-textiles ; steel bar structures ; parametric design ; genetic algorithms ; structural optimization ; lightweight structures ; manufacturing and processing ; laminated composite double-cylindrical shell system ; improved Fourier series ; Rayleigh–Ritz method ; free vibration ; steady-state response ; hydrogen embrittlement ; nanograined materials ; intergranular deformation ; brittle fracture ; grain refinement ; magnesium alloy AZ91 ; short carbon fibers ; compressive strength ; wear resistance ; wear mechanisms ; wear debris ; hydrogen ; hydrogen fuel cell ; depressurization ; orifice plate structure ; computational fluid dynamics ; numerical model ; roughness surface ; morphological characterization ; characterization parameter set ; redundant parameter set ; ISO25178 ; face gears ; 3D optical scanning ; point clouds ; tooth surface deviations ; loaded tooth contact analysis ; meshfree method ; laminated composite shell ; rotating shell ; free vibration analysis ; thermal effect ; Rayleigh–Ritz technology ; laminated submarine-like model ; annular plate ; vibration analysis ; molecular dynamics ; dislocation nucleation ; plastic deformation ; aluminum alloys ; AA6082-T6 ; AA2011-T6 ; friction stir spot welding ; friction stir deposition ; keyhole refilling ; ultrasonic-assisted thermal forming ; ultrasonic softening effect ; stress reduction amplitude ; evolution of microstructure ; AZ91D magnesium alloy ; laser cladding ; Al-Si + Y2O3 coating ; tribological property ; corrosion resistance ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: The first three papers describe research activities about poly(lactic acid) (PLA)-based blends and their composites with wheat bran that were carried out under the framework of the BIONTOP project ("Novel Packaging Films and Textiles with Tailored End of Life and Performance Based on Bio-based Copolymers and Coatings", 837761) funded by the European Commission BBI-JU program. The melt fluidity, morphological, thermo-mechanical, creep and fracture properties of these promising biodegradable materials were considered and discussed. The reprint then includes two contributions (a review and a research article) written in the contest of ECOFUNCO project ("ECO Sustainable Multi FUNctional Biobased COATings with Enhanced Performance and End of Life Options", 837863) funded by the European Commission BBI-JU program. The review explores possible innovations in the field of solid and liquid biobased coatings, whereas the research article examines the modification of paper tissues with biobased additives for sustainable personal care applications. A research paper on the production of PLA-based composites to valorize hazelnut shell powder, which represents an agro-food waste, is also included in the reprint. Moreover, the reprint presents research papers investigating different biobased materials for environmental depollution, including hydrogel-based, bacterial cellulose-based and biochar-based materials. Finally, a research paper on the behavior of natural rubber during aging is presented.
    Keywords: bacteria cellulose ; poly Schiff base ; chromium ; adsorption ; poly(lactic) acid (PLA) ; poly(butylene succinate-co-adipate) (PBSA) ; binary blends ; micromechanical analysis ; mechanical tests ; polyurethane-biochar crosslinked material ; modified filter additive ; phosphorus release and adsorption ; bioretention facilities ; stormwater treatment ; rubber waterstop ; low temperature ; aging performance ; microscopic examination ; mechanism analysis ; fibrillated nanocellulose ; hydrogel ; methyl orange ; polymer ; creep ; micromechanics ; coatings ; active molecules ; barrier properties ; biocomposites ; natural fibers ; poly(lactic acid) (PLA) ; extrusion compounding ; fracture mechanics ; chitin nanofibrils ; polyphenols ; paper tissues ; mechanical properties ; bio-based coatings ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGM Materials science
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  • 42
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-07-14
    Description: This reprint focuses on the research of textile materials for conventional and protective clothing. More than ever, multidisciplinary research applied to the field of new textile materials and new techniques of processing and joining materials is needed. The main research topics of this Special Issue include research and development of new materials and the improvement of their properties, and the mechanical and thermal properties of yarns, materials and clothing. Simulations based on the physical and mechanical properties of fabrics for the purpose of prediction assessment of the appearance and behavior of clothing, as well as 3D virtual garment prototypes using 3D body models and involving 3D human-body scanning, are interesting and significant topics in the field of clothing engineering. The problem of microplastics that are produced during the manufacture or cleaning of synthetic textiles has also been investigated in this Special Issue.
    Keywords: electroconductive material ; polyamide ; silver ; shielding effectiveness ; wet cleaning ; dry cleaning ; polyurethane ; material ; clothing ; mechanical properties ; heat resistance ; woven fabric ; plain weave ; electrically conductive yarn ; resistance ; tensile force ; elongation ; knit ; plain stitch ; multi-filament yarn ; 3D model ; stretching ; air permeability ; fashion design ; textile material ; textile pattern ; thermal camouflage ; biomimetic ; leather ; drape coefficient ; leather rigidity ; drapability ; leather thickness ; kinematic 3D human-body model ; sitting posture ; Blender software ; virtual prototyping ; personalized clothing ; linen fabric ; warp crimp ; calculated crimp ; experimental crimp ; moisture vapor permeability ; ecofriendly fiber ; Tencel ; bamboo ; KES-F7 ; pore diameter ; fabric ; drape ; physical and mechanical properties ; polygonal model ; 3D simulation ; linen/silk fabric ; pilling resistance ; singeing ; pigment and reactive printing ; electrospinning ; nanofibres ; filtration ; particles retention ; multilayer systems ; clothing physiology ; tight-fitting sportswear ; running test on a treadmill ; thermal comfort ; skin temperature ; perspiration ; protective clothing for firefighters ; flame manikin ; fire resistant materials ; flammability of materials ; thermal decomposition ; microplastics ; wastewater ; textiles ; polyester ; polyester ageing ; bibliometric analysis ; research trend ; artificial intelligence ; Web of Science ; 3D printing ; textile applications ; polylactic acid (PLA) ; breaking force ; knee protector ; FR fabric ; printing ; wash fastness ; spectrophotometry ; cotton fabric ; Proban® ; environmentally friendly washing procedure ; flame retardant durability ; MCC ; appearance ; knitted fabric ; cycle load ; elastic limit ; elastane ; hysteresis curve ; socks ; modal ; micro modal ; yarn type ; durability ; comfort ; textile testing ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-05-11
    Description: Billions of people suffer from dental problems. Paradoxically, the deteriorating state of teeth is accompanied by the ever-increasing desire to preserve the best facial appearance, which is significantly influenced by teeth aesthetics. This favors the development of dental materials and manufacturing technologies for dental prosthetics, needed to achieve expected effects of clinical treatment.This reprint focus on enhancing antimicrobial and mechanical properties of polymeric materials and composites for dentistry. In recent years, special attention has been focused on the possibility of giving materials new or improved properties by the introduction of nano or submicron size additives, fibers or whiskers. Using agents such as natural oils to enhance antimicrobial properties remains an exciting idea. Another area of research is the application of antibacterial monomers, which can be copolymerized in resins to kill oral pathogenic microflora. The use of new monomers or new compilations of various monomers to improve mechanical properties has also aroused interest. In addition, we are currently looking for new data regarding colonization of dental materials by pathogenic microbes and their influence on the other properties. Further, there are many new commercially available materials which should be investigated to verify their properties, which is important from the point of view of clinical practice. Original new research and reviews related to any of the topics mentioned above indicate the current directions of development of dental materials. We hope that the presented work will be of interest to readers.
    Keywords: dental cements ; ethanol ; water ; resistance ; DTS ; Vickers hardness ; dental materials ; dimethacrylates ; polymer networks ; structure ; morphology ; degree of conversion ; crosslink density ; physical crosslinking ; hydrogen bonds ; mechanical properties ; water sorption ; polymethyl methacrylate ; denture ; antibacterial properties ; silver ; sorption ; solubility ; wear resistance ; FRC ; bonding ; technique ; fiber ; reinforced ; composite ; spot ; mechanical ; deflection ; orthodontics ; brushing ; wear ; retainer ; splint ; load ; direct pulp capping ; indirect pulp capping ; ProRoot MTA ; MTA Angelus ; retroMTA ; biodentine ; theraCal LC ; ACTIVA BioACTIVE ; vital pulp therapy ; glass fiber ; composite post ; endodontic therapy ; etching ; post and core technique ; silane ; glass-ionomer cements ; resin-modified ; fibre ; reinforcement ; nanoparticles ; testing ; strength ; P2O5-bioglass ; zirconia ; melt-quenching ; SBF ; hydroxyapatite ; in vitro bioactivity ; essential oils ; oral pathogens ; antibacterial activity ; S. mutans ; L. acidophilus ; C. albicans ; antifungal activity ; resin composite ; wettability ; biofilm formation ; cytotoxicity ; polymers ; antimicrobial properties ; infiltrants ; metronidazole ; dental ceramics ; spectroscopy ; IR ; FT-IR ; Raman spectroscopy ; UV-Vis ; X-ray spectroscopy ; XRF ; XRD ; MS ; dental resins ; UDMA ; Bis-GMA ; Bis-EMA ; TEGDMA ; hardness ; water absorption ; water dissolution ; CAD-CAM ; inlay ; lithium disilicate ; zirconium dioxide ; root caries ; infiltration ; microstomatology ; adhesive ; bracket ; dentures ; denture adhesives ; human fibroblasts ; composite resins ; Streptococcus mutans ; dental caries ; bacterial adhesion ; oleic acid ; PMMA ; filamentation ; biofilm ; antimicrobial surface ; Candida albicans ; colonization ; penetration ; dimethacrylate copolymers ; quaternary ammonium methacrylates ; urethane-dimethacrylates ; photocurable copolymers ; water behavior ; thermoplastic materials ; laboratory protocol ; texture ; roughness ; biomaterial ; polymer ; microbial degradation ; artificial saliva ; mucins ; n/a ; bic Book Industry Communication::M Medicine
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-04-05
    Description: This Special Issue reprint, “Advanced Polymer Nanocomposites II”, addresses high-quality original and review papers, focused on the scientific discussion and practical application in the field of functional polymer nanocomposites, including: (a) optoelectronic materials (papers 1-9); (b) biomedical materials (papers 10-14); and (c) other functional polymer nanocomposites (papers 15-23). We hope that this Special Issue reprint can promote academic research exchanges and identify and respond to tremendous challenges of research in this burgeoning field.
    Keywords: hexagonal boron nitride ; jet cavitation ; silicone ; thermal conductivity ; silica sol ; soft contact lens ; poly(HEMA-co-NVP) ; oxygen permeability ; hydrophilicity ; POSS ; phenolic resin ; hydrogen bonding ; supercapacitors ; parylene ; CVD ; bioremediation ; polymer ; cellulase ; Bacillus ; Li4Ti5O12 ; polyimide ; carbon coating ; lithium ion battery ; rate performance ; polyaniline ; ferrite ; α″-Fe16N2 ; superparamagnetic ; inverse suspension polymerization ; β-tricalcium phosphate ; biocomposites ; osteoconduction ; polycaprolactone ; epoxy resin ; nanocomposites ; silica nanoparticles ; mechanical behavior ; high strain rate ; split Hopkinson bar ; FeNC catalyst ; polyimine ; two-stage calcination ; oxygen reduction reaction ; bone tissue regeneration ; chitosan nanocomposites ; critical size defect ; graphene oxide ; titanium dioxide nanoparticles ; polymer electrolytes ; composites ; biopolymers ; zinc batteries ; magnesium batteries ; properties ; graphene ; carbon nanotubes ; electromagnetic interference shielding ; Nepenthes structure ; bionic replica ; zwitterion polymers ; self-driving water ; unidirectional water delivery ; surface-enhanced Raman scattering (SERS) detection ; cable joint ; liquid silicone rubber ; nonlinear conductivity ; space charge ; magnetic nanomaterials ; conjugated polymers ; poly-N-phenylanthranilic acid ; one-step synthesis ; IR heating ; natural rubber latex ; Bi2O3 ; BaSO4 ; X-ray shielding ; gloves ; mechanical properties ; poly ionic liquids ; nanofibers ; electrospinning ; gold nanoparticles ; hybrid nanocomposites ; polyurethanes ; solution blow spinning ; dielectrics ; superparamagnetic iron oxide nanoparticles (SPION) ; dry coating ; solvent-free process ; discrete core-shell coating ; propargyl methacrylate (PMA) ; mesoporous carbon microbeads (MCMB) ; solid electrolyte interface (SEI) ; reinforcement ; nanocomposite ; application ; supramolecular micelle ; C60 ; hydroxyl radical scavenger ; surface-enhanced Raman scattering detection ; water pollutants ; bionic nanostructure ; silver nanoislands ; thermal evaporation ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues
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  • 45
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: "Microbial Biopolymers: Trends in Synthesis, Modification and Applications" is a comprehensive reprint that explores the latest research and innovations in the field of biopolymers. The reprint covers the production and functionalization of two key types of microbial biopolymers: polyhydroxyalkanoates (PHAs) and exopolysaccharides (EPSs). With contributions from leading experts in the field, the reprint provides a thorough overview of the production processes, chemical and physical properties, and applications of these biopolymers. The reprint is an essential resource for researchers, engineers, and industry professionals interested in developing sustainable and eco-friendly alternatives to conventional plastics and materials.
    Keywords: P(3HB-co-4HB) ; 4HB contents ; mixtures ; thermal properties ; rheological properties ; mechanical properties ; polyhydroxyalkanoate (PHA) ; sodium dodecyl sulfate (SDS) ; PHA isolation ; extremophiles ; halophiles ; thermophiles ; Halomonas halophila ; Schlegelella thermodepolymerans ; poly(3-hydroxybutyrate-co-4-hydroxybutyrate) ; supercritical carbon dioxide ; P(3HB-co-4HB) foams ; expansion ratio ; chain extender ; P. frutescens ; M. oleifera ; mixed seed oil ; microemulsion ; emulgel ; polyhydroxyalkanoate ; mcl-PHA ; Pseudomonas resinovorans ; mixed alkane ; polyhydroxyalkanoates ; poly(3-hydroxybutrate) ; enzymatic hydrolysis ; lignocellulosic waste ; cardboard waste ; waste management ; Bacillus sp. ; polyhydroxybutyrate ; plasticizer ; biodegradation ; Microbulbifer sp. SOL66 ; polyhydroxybutyrate 1 ; Halomonas sp. YK44 2 ; galactose 3 ; bio-hydrogen ; poly(hydroxybutyrate-co-hydroxyvalerate) ; tissue engineering ; 3D porous scaffolds ; human gingival fibroblasts ; periodontal ligament stem cells ; n/a ; levansucrase ; thermostability ; levan ; product specificity ; application ; exopolysaccharide ; Bacillus ; emulsifying ; antioxidant ; biopolymers ; exopolysaccharides ; EPS composites ; healthcare ; food ; EPS monosaccharidic composition ; water deprivation ; soil restoration ; dehydration ; biocrusts ; biofilms ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
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  • 46
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-07-14
    Description: This is a reprint of the Special Issue entitled “Wood-Based Materials in Building” and deals with the latest developments in reinforcing construction materials, their joining, glulam–concrete composite beams, the effect of fire-retarding wood on its strength, and the applicability of newly developed wood-based boards and composite insulation materials produced with the use of wood by-products.
    Keywords: timber–timber joints ; single-step joint ; double-step joint ; resource efficient construction ; digital image correlation ; finite element analysis ; wood ; fire retardants ; artificial ageing ; compression strength ; polyurethane foam ; wood by-products ; filler ; cellular structure ; performance properties ; bolts ; dowels ; dowel-type fasteners ; FEM ; frame connection ; fully threaded screws ; glued laminated timber ; numerical model ; rotational stiffness ; bark ; chipboard ; sawdust ; wood-based material ; wood chips ; formaldehyde emission ; mechanical properties ; UF resin ; plywood ; wood-base materials ; bolts and dowels ; apex connection ; folding mechanism ; FEA ; panelized light frame roof ; glulam-concrete composite beam ; timber board interlayer ; bending performance ; finite element model ; parametric study ; glued laminated beams ; fibre-reinforced timber ; load-bearing capacity ; stiffness ; ductility ; modulus of elasticity ; bending test ; carbon cords ; carbon laminates ; knots ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 47
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-03-07
    Description: This reprint, entitled “Process Control and Smart Manufacturing for Industry 4.0”, contains the extended papers from the Series of annual IFSA conferences on Automation, Robotics and Communications for Industry 4.0/5.0 (ARCI) on the following topics: Process Automation, Process Control and Monitoring, Design Principles in Industry 4.0, Smart Manufacturing and Technologies, Smart Factories, Machine Learning and Artificial Intelligence in Manufacturing. The reprint contains 13 chapters written by 54 ARCI conference participants from seven countries: China, Croatia, Denmark, Germany, Italy, Poland and Romania. This reprint will inform readers of cutting-edge developments in the field and provide effective starting points and a road map for further research and development. All chapters follow the same structure: firstly, an introduction to the specific topic under study; secondly, a description of the field, including sensing or/and measuring applications. Each chapter ends with a curated list of references, including books, journals, conference proceedings and websites. “Process Control and Smart Manufacturing for Industry 4.0” is intended for researchers and scientists from academia and industry, as well as for postgraduate students.
    Keywords: steel alloys ; resistance spot welding ; RSW ; electrode wear ; electrode tip-dressing ; process monitoring ; mushrooming ; plateau forming ; quality control ; COVID-19 ; FDM ; 3D printing ; injection molding ; personal protection ; rapid prototyping ; protective face shields ; mechatronics line ; visual servoing system ; wheeled mobile robot ; industrial robotic manipulator ; Industry 4.0 ; NDT ; magnetic particle inspection ; optimization ; condition monitoring ; vibration ; acoustic emission ; drive train ; data fusion ; machine learning ; product morphology ; core data model ; phase rule filter ; phase private data model ; storage system ; forklift AGV ; deep learning ; semantic segmentation ; H-Swish ; community transformation ; community innovation governance ; ternary space ; coupling and coordination analysis ; lean manufacturing ; lean principles ; pull principle ; production control mechanisms ; production processes ; lean implementation ; batch process ; partial least squares ; multi-phase ; multi-mode ; master production scheduling ; make-to-order ; mathematical programming ; agent-based ; overtime ; earliness ; tardiness ; equipment selection decision ; business compass ; energy consumption ; processing time ; beetle antennae search algorithm ; sustainable blank dimension design ; energy-saving ; low-carbon ; grey wolf algorithm ; gas–solid ; cyclone ; separator ; gas dynamics ; erosion ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PN Chemistry
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  • 48
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-28
    Description: This reprint contains 12 high-quality original research papers by 74 authors from 17 countries on 3 continents: Asia (China, Indonesia, Malaysia, and Russia), Europe (Bulgaria, the Czech Republic, Germany, Portugal, Romania, Slovakia, Slovenia, Sweden, Ukraine, and the United Kingdom), and North America (USA). These papers were published in a Special Issue, “Performance and Modification of Wood and Wood-Based Materials”, of the journal Forests. They provide examples concerning conventional and novel modification processes of wood and wood-based materials, their improved/modified properties, and their relevant applications.
    Keywords: heat treatment ; Chinese fir ; TD-NMR ; free water ; bound water ; MC ; birch wood ; spent engine oil ; water resistance ; biostability ; dimensional stability ; black alder ; birch ; color ; varnish system ; surface pre-treatment ; sanding ; thermal compression ; artificial aging ; wood plastic composite ; rubberwood ; polyethylene terephthalate ; silica ; thermo-hydro-mechanical densification ; Scots pine ; creep compliance ; thermal modification ; resin impregnation ; wood ; Maillard reaction ; thermal/chemical treatment ; mechanical properties ; infrared spectroscopy ; biological properties ; thermo-hydro-mechanical treatment ; molecular dynamics ; wood cellulose ; Acacia hybrid ; fast-growing ; copper chrome arsenic ; physical and mechanical properties ; coir fiber ; alkali treatment ; parameter optimization ; black locust wood ; ThermoWood process ; colour ; extractives ; chemical changes ; FTIR spectroscopy ; thermal densification ; plywood properties ; wood veneers ; Eucalyptus urograndis ; Chrysoporthe deuterocubensis ; infection classes ; chemical analysis ; FTIR analysis ; fungal decay ; termite attack ; n/a ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences ; thema EDItEUR::K Economics, Finance, Business and Management::KN Industry and industrial studies::KNA Agribusiness and primary industries::KNAL Forestry industry
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  • 49
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-04-05
    Description: With the continuous advancement of coastal, offshore, and deep-sea engineering construction (e.g. marine oil, gas, and mineral resource development, offshore wind power projects), associated studies on marine geological environments and hazards have also advanced in parallel. This reprint“Advances in Marine Engineering: Geological Environment and Hazards” is formed by a Special Issue (SI) that was organized by Prof. Xiaolei Liu from the Ocean University of China, Prof. Thorsten Stoesser from the University College London, and Dr. Xingsen Guo from the University College London to document research advances in the topics of marine engineering, including marine geological environments, marine geological hazards, marine engineering geology, marine hydrodynamics, marine fluid mechanics, and marine geotechnical engineering. The high-quality papers collected in this book involve many classic and innovative methodologies in this research field, including but not limited to analytical and statistical analyses, numerical simulations, laboratory testing, and marine surveys. The book represents the state-of-the-art in the latest research concepts, advanced methods, and data that will contribute greatly to the development of the field of marine geological environments and hazards.
    Keywords: gas-hydrate-bearing sediments ; mechanical behavior ; dynamic loading ; discrete element simulation ; macro-meso ; South China Sea ; submarine soft soil ; triaxial test ; mechanical properties ; normalized behavior ; CO2 hydrate slurry ; rheology ; shear-thickening ; Herschel–Bulkley-type model ; sediment acoustic ; frequency dependence ; sound speed ; attenuation ; Biot–Stoll model ; seafloor sediments ; XGBoost ; the East China Sea ; groundwater ; hydrochemistry ; Guangdong coastal zone ; seawater intrusion ; nitrate pollution ; undrained shear strength ; clay samples ; mini-ball penetration test ; low temperature ; strength of bound water ; viscosity of free water ; seafloor bedform ; multibeam bathymetry ; sub-bottom profile ; bottom current ; laterally loaded piles ; initial stiffness ; undrained clay slope ; nonlinear formulations ; finite-element analysis ; cyclic shear test ; silt–steel interface ; stress–displacement mechanical properties ; submarine landslide ; in-situ investigation ; physical modelling ; numerical simulation ; calcareous sand ; cyclic load ; cumulative axial strain ; stiffness ; damping ratio ; deep-buried tunnel ; analytical solution ; anisotropic flow ; conformal mapping ; seepage field ; gas hydrate ; high-resolution seismic ; ultra-high-energy plasma source ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This reprint contains fourteen chosen articles on robust design optimization of electrical machines and devices. Optimization is essential for the research and design of electromechanical devices, especially electrical machines. Finding optimal solutions may lead to cheaper and more efficient production of electrical machines. However, optimizing such a complex system as an electrical machine is a computationally expensive optimization problem, where many physical domains should be considered together. However, a good, practical design should be insensitive to parameter changes and the manufacturing tolerances. The collected papers show how modern artificial intelligence (AI) tools can be used for the robust design optimization of electric machines and electrical devices. The articles which are published in this Special Issue present the latest results of current research fields. Hopefully, the presented models and various application fields will provide useful information for researchers and professionals interested in these techniques themselves or who have other problems from different fields.
    Keywords: design optimization ; genetic algorithms ; Taguchi designs ; electromagnetic coupling ; additive manufacturing ; dynamic performance ; equivalent circuit model ; finite-element method ; linear induction motor ; longitudinal end effect ; transverse edge effect ; DLIM ; equivalent circuit ; end effect ; thrust ; finite element ; insulation core transformer ; non-uniformity of disk output voltage ; load regulation ; voltage compensation ; dummy primary winding ; PSO algorithm ; PMSM ; analytical method ; perturbation theory ; torque ; torque ripple ; rotor eccentricity ; optimization ; electrical machines ; finite element method ; nuclear power plant ; thermal degradation ; thermal-mechanical aging ; low-voltage cables ; polymer degradation ; dielectric spectroscopy ; hardness ; hairpin windings ; multi-objective optimizations ; Finite Element Method ; Lumped Parameter Model ; Permanent Magnet Synchronous Reluctance Motor ; rotor flux barrier ; torque development ; Aurivillius phases ; Bi3−xNdxTi1.5W0.5O9 ; activation energy Ea ; Curie temperature TC ; artificial intelligence ; optimization techniques ; self-organizing map ; power quality ; wind generation ; upgraded insulant ; ester oil-based nano fluids ; thermal conductivity ; relative viscosity ; nanoparticles effect ; alternative fluid ; temperature change ; model predictive control ; hysteresis current control ; execution time ; synchronous reluctance motors ; antenna array ; synthesis control ; quantized control ; array factor ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::K Economics, Finance, Business and Management::KN Industry and industrial studies::KNB Energy industries and utilities
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This reprint aims to disseminate the latest research achievements, findings, and ideas in the robotics field, with particular focus on the Italian scenario. It covers a range of topics related to the theory, design, practice, and applications of robots, such as robot design and kinematics, dynamics of robots and multi-body systems, linkages and manipulators, control of robotic systems, trajectory planning and optimization, innovative robots and applications, industrial robotics, collaborative robotics, medical robotics, assistive robotics, and service robotics. The reprints contributions include (but are not limited to) revised and substantially extended versions of selected papers that were presented at the 2nd International Conference of IFToMM, Italy (IFIT 2018).
    Keywords: robotics ; humanoids ; foot mechanism ; prosthetics ; neurorehabilitation ; humanoid robotics ; assistive robotics ; service robotics ; mechanism design ; kinematics ; cable-driven robots ; compliant mechanisms ; underactuated mechanisms ; motion analysis ; workspace ; deburring ; robot ; cutting forces ; compliant mechanism ; manipulator design ; robot kinematics ; synthesis of kinematic structure ; loop chain ; virtual link ; instant center ; multi-degree-of-freedom ; Aronhold–Kennedy theorem ; rescue robotics ; search and rescue ; robot design ; mobile robot ; patient transfer ; casualty extraction ; planar CDPR ; prescribed task ; optimization problem ; multiobjective formulation ; mono-objective formulation ; position control approach ; validated experimentally ; wheelchair upper limb exoskeleton robot ; ADL assistance ; PD control ; dynamic modeling of an upper limb exoskeleton ; trajectory tracking ; wearable exoskeleton ; reconfigurable parallel mechanism (RPM) ; degree-of-freedom (DOF) ; circular guide ; computer-aided design (CAD) modeling ; virtual and physical prototyping ; screw theory ; kinetostatic analysis ; digital twins ; 3D printing technology ; parallel mechanism ; RoboMech ; structural-parametric synthesis ; Chebyshev and least-square approximations ; kinematic analysis ; robotic rehabilitation ; brachial monoparesis ; torque monitoring ; human–robot interaction ; HRI (human–robot interaction) ; Leap Motion ; UR5 ; hand gesture recognition ; pointing gestures ; collaborative robotics ; parallel robot ; non-uniform covering ; optimization ; singularity zones ; link interference ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-01-05
    Description: The objective of this book is to publish the most recent technological advancements, and theoretical and practical research outcomes, alongside high-quality literature reviews on wireless power transfer to charge electric vehicles. More substantial research is proposed due to the fast-growing market for electric vehicles, and recent advances in wireless power transfer techniques have the potential to make this technology available for all consumers by overcoming its drawbacks. For instance, one of the major downsides to EVs is the requirement for an automobile to be idle during charging times. This problem can be solved by implementing dynamic wireless power transfer (WPT) with a higher power transfer efficiency (PTE). So, this book endeavors to create a major forum for investigating recent advances and the envisioned future in wireless power transfer for electric vehicles in terms of modeling, design, performance, operation, control, implementation, storage, electric machines, power electronics converters, optimization, cost, charging techniques, and applications. This book provides valuable contributions to the field of electric vehicles: inductive power transfer concepts; airport inductive charging infrastructures; the design of a wireless charging system for an e-bike with grid connection; control of renewables; social, economic, political, and technical factors for dynamic wireless charging; the influence of posture and coil position on the safety of a WPT; double-coil dynamic shielding technology for WPT; reduction in cogging torque in a PM brushless DC motor; and optimal dynamic scheduling of EVs in a parking lot.
    Keywords: charging cost ; dynamic charging ; economics ; electric vehicles ; optimization ; parking lots ; static charging ; PMBLDC motor ; cogging torque ; finite element analysis ; virtual work method ; shifting angle ; electromagnetic field ; wireless power transfer ; shielding ; electric vehicle ; EMF safety ; numerical dosimetry ; wireless charging ; dynamic wireless power transfer ; EV charging infrastructure ; stakeholder engagement ; electric road systems ; system demand ; APF ; power quality ; SRF ; UPC ; VAR ; brushless doubly fed reluctance generator (BDFRG) ; crowbar ; symmetrical fault ; unsymmetrical fault ; wind turbine (WT) ; inductive power transfer ; e-bikes ; forward converter ; dynamic wireless charging ; airport apron ; airport infrastructure planning ; electric busses ; charging automation ; electric vehicles (EVs) ; wireless power transfer (WPT) ; production ; automation ; inductive power transfer (IPT) ; manufacturing ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-28
    Description: This reprint is a comprehensive compilation of research on new urban mobility. It contains proprietary, current studies on shared mobility, such as car sharing or scooter sharing in relation to commercial use as part of short-term rental systems or for use by postal services. In addition, it broadly refers to the subject of bicycles and bike-sharing systems. It includes research on professional e-bikes with parameters such as velocity, cadence and power data as well as research on measuring the intensity of bicycle traffic, which can be used to evaluate and improve bike-sharing systems. The reprint provides a valuable resource for researchers, practitioners, and policymakers who are interested in the challenges and opportunities associated with the development of new mobility solutions.
    Keywords: power ; velocity ; cadence ; electric bike ; bicycle computer ; car-sharing ; carsharing ; shared mobility ; multi-criteria decision analysis ; ELECTRE III ; MCDA ; decision making in transport ; transportation engineering ; hydrogen mobility ; zero emission ; green energy ; e-micromobility ; e-scooters ; electric vehicles ; PROSA GDSS ; multi-criteria decision aid ; MCDM ; compromise solution ; micro-mobility ; e-scooter ; postal service ; Poisson regression ; optimization ; energy ; cost ; environment ; bicycle traffic measurement ; vehicle counter ; induction loop ; video recording ; perpendicular radar ; microwave radar ; energy management ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general ; thema EDItEUR::P Mathematics and Science::PH Physics
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: The recovery of solid waste is a challenge and an opportunity for companies, thanks to the ongoing awareness of sustainability and technological advances. The end-of-waste criteria constitute a European strategic goal that promotes recycling in order to ensure a high level of environmental protection by means of reducing the quantity of waste destined for disposal. This Special Issue promotes the knowledge regarding technological methods for solid waste recovery. Articles investigate innovative processing methods with the goal of valorizing solid waste from different civil and industrial activities. Topics includes studies on construction and building, mining, plastics, and WEEE, referring to the treatment techniques used and, where appropriate, the critical raw materials that can be valorized. The recovery processes of critical raw materials can be very energy-intensive, affecting environmental and soil factors. Case studies on sustainable, low-carbon and resource-efficient techniques for the purpose of a more competitive economy were also very welcomed. The environmental impact and safety measures, especially for dangerous waste, should be taken into account in the description of their processing and management.
    Keywords: cathode ray tube ; lead recovery ; lead leaching and electrodeposition ; environmental assessment ; phosphate cements ; calcined dolomite ; quartz sand ; calcined magnesite ; temperature ; K-struvite ; industrial waste ; chromium ; high-performance concrete ; ultra-high-performance concrete ; fibers ; mechanical strength ; alkali-activated cement ; geopolymers ; building materials ; PET ; compressive strength ; water absorption ; WPCBs dismantling ; metals dissolution ; copper recovery ; economic assessment ; process modeling and simulation ; low-temperature processing ; WEEE (waste of electric and electronic equipment) recycling ; materials separation ; process characterization ; SEM/EDS ; torrefaction ; solid fuel ; waste to carbon ; circular economy ; biodegradable materials ; calorific value ; methane fermentation ; biogas ; biomethane ; biochar ; pyrolysis ; hydrothermal carbonization ; biochemical methane potential ; biogas production kinetics ; industrial wastes ; arc furnace slag ; ceramic sludge ; β-wollastonite ; parawollastonite ; porous ceramics ; waste management ; sustainability development ; apple pomace ; active compounds ; extraction ; renewable energy ; anticorrosion agents ; biopolymers ; PCB ; recycling ; metal recovery ; mechanical pre-treatment ; production waste ; rock wool ; glass wool ; loss on ignition ; pollutants washout ; geopolymer ; waste slurry ; flocculation ; solidification ; pipe jacking ; air flow rate ; composting ; municipal solid waste ; monitoring ; optimization ; spatial distributions ; crystallization ; glass–ceramics ; diopside ; anorthite ; by-pass cement ; aluminum dross ; thermodynamic analysis ; kinetics ; hemp stalk ; bio-insulating material ; sustainability ; sound absorbing properties ; thermal absorption properties ; green composite material ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-04-05
    Description: This book reprints articles from the Special Issue "Advances in Computer-Aided Technology" published online in the open-access journal Machines (ISSN 2075-1702). This book consists of thirteen published articles. This Special Issue belongs to the "Mechatronic and Intelligent Machines" section. Industry 4.0 is characterized by the integration of advanced technologies, such as artificial intelligence, the Internet of Things, and cloud computing, into traditional manufacturing and production processes. CAx (Computer-Aided Systems) systems are a set of computer software tools used in engineering and product design, covering various stages of the product development cycle. Advanced CAx tools combine many different aspects of product lifecycle management (PLM), including design, finite element analysis (FEA), manufacturing, production planning and product. In connection with the transition to Industry 4.0 concepts, the concept of the digital twin comes to the fore, and existing CAx systems must adapt to this trend. The Special Issue deals with a number of research areas, such as: - New trends in CAx systems; Digital manufacturing; Internet of Things in manufacturing; Simulation of production systems and processes; Systems for advanced finite element analysis; Material engineering; Digitization and 3D scanning.
    Keywords: tensor glyph ; golden section ; vector space ; sandwich ; springback ; Vegter yield criterion ; numerical simulation ; PAM-STAMP 2G ; isotropic hardening law ; kinematic hardening law ; bending ; Bauschinger effect ; machine learning ; artificial neural network ; additive manufacturing ; high precision metrology ; CAD ; predictive model ; ship hull structure ; computer-aided design of structure ; database ; function soft block ; gun drill tool ; deep-drilling technology ; optimization ; tool life ; angle ; digital implant impression ; interimplant distance ; intraoral scanner ; trueness ; sewing machine ; needle bar ; floating needle ; electromagnet ; electromagnetic simulation ; noise reduction ; cycloidal gearbox ; friction ; actuator ; servomotor ; permanent magnet synchronous machine ; fixture design ; machining ; sustainable manufacturing ; process innovation ; complex-shape part ; signal processing ; monitoring system ; laser profiler ; surface roughness ; quality assessment ; non-contact method ; vision-based method ; frequency analysis ; abrasive water jet ; wood plastic composite ; natural reinforcement ; knitting machine ; stroke ; drive ; simulation ; cylinder ; dynamic modeling ; load spectrum reconstruction ; fatigue test ; hydraulic excavator ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-09
    Description: This reprint is a collection of the research papers published in the "Advances in Friction, Lubrication, Wear and Oxidation in Metals Manufacturing" Special Issue. It acts as an update on the state of the art concerning studies on friction, wear and oxidation properties of materials; the development and performance of novel lubricants; and advanced simulation strategies for friction contacts.
    Keywords: multiscale simulation ; surface contact ; roughness ; mixed lubrication ; tribology ; UCMW cold rolling mill ; finite element simulation ; roll gap friction ; shape control ; indefinite chill roll ; high speed steel ; oxidation behavior ; thermogravimetric analyzer (TGA) ; high-entropy alloy ; microstructure ; mechanical properties ; CoCrFeNiMox ; friction and wear ; cutting fluid ; esters ; lubrication ; tool wear ; titanium alloys ; Ni-Cr-Mo-based superalloy ; aging treatment ; precipitation ; intergranular corrosion resistance ; wear resistance ; boundary lubrication ; friction contact ; molecular dynamics simulation ; fluid lubricant ; nanoparticles ; nanotribology ; AISI304 ; martensitic transformation ; austenite ; lubricant ; wear ; friction ; hydrodynamic lubrication ; feed rate ; incremental sheet forming ; SPIF ; single point incremental forming ; tool rotational speed ; silicon–aluminum alloy ; electroposition ; Ni–Co–P/Si3N4 composite coating ; mechanical strength ; manufacturing and machining ; black phosphorus ; lubrication additives ; tribological properties ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-28
    Description: This reprint covers the following topics in the field of smart grids: 1. Optimal dg location and sizing to minimize losses and improve the voltage profile using garra rufa optimization. 2. Solar and wind energy forecasting for the green and intelligent migration of traditional energy sources. 3. Optimized micro-grid’s operation with electrical-vehicle-based hybridized sustainable algorithm. 4. The detection of nontechnical losses in smart meters using a MLP-GRU deep model and augmenting data via theft attacks. 5. A hybrid deep-learning-based model for the detection of electricity losses using big data in power systems. 6. Load frequency control and automatic voltage regulation in a multi-area interconnected power system using nature-inspired computation-based control methodology. 7. Line overload alleviations in wind energy integrated power systems using automatic generation control. 8. Electric price and load forecasting using a CNN-based ensembler in a smart grid. 9. Day-ahead energy forecasting in a smart grid considering the demand response and microgrids. 10. A dragonfly optimization algorithm for extracting the maximum power of grid-interfaced pv systems. 11. An economic load dispatch problem with multiple fuels and valve point effects using a hybrid genetic–artificial fish swarm algorithm. 12. Incentive-based dynamic pricing in a smart grid.
    Keywords: demand side management ; demand response ; load scheduling ; real time pricing ; genetic algorithm ; dynamic incentives ; artificial fish swarm algorithm ; economic load dispatch ; hybrid genetic–artificial fish swarm algorithm ; multi-objective optimization ; sustainable power generating system ; photovoltaic (PV) ; partial shading ; maximum power point tracking (MPPT) ; dragonfly optimization algorithm (DOA) ; adaptive cuckoo search optimization (ACSO) ; fruit fly optimization algorithm combined with general regression neural network (FFO-GRNN) ; improved particle swarm optimization (IPSO) ; voltage source inverter (VSI) ; total harmonic distortion (THD) ; energy optimization ; day ahead energy prediction ; artificial neural network ; renewable energy sources ; microgrid ; smart grid ; electricity price forecasting ; energy management ; electricity load forecasting ; convolutional neural network ; corona virus herd immunity optimization ; sustainable cities ; requirement-gathering tool ; qualitative comparison ; requirement engineering ; software engineering ; requirement-management tools ; automatic generation control ; wind energy ; transmission line security ; dispatch strategies ; Pakistan power system ; PI-PD controller ; load frequency control ; automatic voltage regulator ; nature-inspired optimization ; multi-area interconnected power system ; class imbalance ; gated recurrent units ; electricity theft detection ; non-technical losses ; smart grids ; deep learning ; GRU ; healthcare ; MLP ; PRECON ; smart cities ; smart meters ; sustainable society ; electric vehicles ; flexible load ; optimization ; renewable energy ; forecasting ; machine learning ; energy efficiency ; sustainability ; low carbon emission ; distribution generation ; Garra Rufa ptimization ; PSO ; GA ; power system ; urban sustainability ; local growth ; regional cities ; cultural heritage ; real estate ; intelligent regions ; innovation systems ; circular economy ; regional policies ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general ; thema EDItEUR::P Mathematics and Science::PH Physics
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-28
    Description: Catalytic oxidation or reduction processes are among the most efficient processes for water and wastewater treatment. These include photocatalysis, sulfate and hydroxyl-radical-based advanced oxidation processes.This Special Issue contains the contributions of different research groups and discusses the recent progress and advances in catalytic processes in water and wastewater treatment.
    Keywords: photocatalytic degradation ; graphene quantum dots ; nanocomposites ; free radical generation ; post-processing modification ; surface-engineered biochar ; dye removal ; machine learning ; artificial neural network ; photocatalysis ; sodium persulfate ; antibiotics ; water treatment ; hybrid system ; water matrix ; MTBE ; arsenic ; Fe2O3/MgO catalyst ; AOP ; modeling ; optimization ; Auramine O ; basic dye ; titania nanoparticle ; mechanism ; CuS nanostructures ; heterojunctions ; organic pollutants ; wastewater treatment ; water purification ; ZnO nanostructures ; hydrothermal synthesis ; seedless ; building materials ; synthetic dyes ; anionic–anionic co-doping ; BaTiO3 ; Heyd–Scuseria–Ernzerhof (HSE06) ; photocatalytic water splitting ; TiO2 ; photocatalysts ; photodegradation ; methylene blue ; methyl green ; g-C3N4 ; pharmaceuticals ; amisulpride ; reactive species ; transformation products ; ecotoxicity ; biochar ; sulfamethoxazole ; persulfate ; electron transfer ; psychiatric drugs ; hospital wastewaters ; solar photocatalysis ; 1MoS2/g-C3N4 ; CNTs ; Ag2S ; cadmium ; adsorption ; alizarin yellow R ; n/a ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general ; thema EDItEUR::P Mathematics and Science::PN Chemistry
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This reprint was proposed and organized as a means to present recent developments in the field of testing of materials and elements in civil engineering. For this reason, the articles highlighted in this editorial relate to different aspects of this topic, from building materials to building structures. The current trend in the development of materials testing in civil engineering is mainly concerned with the detection of flaws and defects in elements and structures using destructive, semidestructive, and nondestructive testing.
    Keywords: timber structures ; estimating mechanical parameters ; small clear specimens ; non-destructive tests ; semi-destructive tests ; resistance drilling ; ultrasonic wave ; stress wave ; visual grading ; concrete ; NDT ; finite element method ; experiment ; automated inspection ; frequency domain ; validation ; sulfate attack ; physical and mechanical properties ; damage model ; microstructure ; external thermal insulation systems ; mechanical properties of bonds ; polyurethane adhesive ; timber frame building ; bond strength ; shear properties ; residual magnetic field ; Barkhausen noise ; LCR circuits ; plastic deformation ; austenitic steel ; steel fibre-reinforced concrete ; steel fibres ; waste sand properties ; reinforced beam ; shear cracking ; shear capacity ; non-destructive testing ; damage detection ; vibrations ; modal analysis ; continuous wavelet transform ; concrete beam ; strengthening ; adhesive joint ; debonding ; S355 steel ; uniaxial tensile test ; strength properties ; true stress-strain relationships ; confining pressure ; expansive clay ; fiber ; flexible wall permeameter ; hydraulic conductivity ; lime ; rigid wall permeameter ; concrete corrosion ; concrete protection ; steel corrosion ; concrete durability ; coating materials ; masonry structures ; autoclaved aerated concrete masonry units (AAC) ; compressive strength ; minor-destructive (MDT) techniques ; non-destructive (NDT) techniques ; ultrasonic testing ; acoustoelastic effect (AE) ; hydrostatic stresses ; modeling ; DIC technique ; ready-mixed concrete ; construction architecture material ; inter-laboratory comparisons (ILC) ; proficiency testing (PT) ; concrete quality assessment ; fracture mechanics ; ductile fracture ; material microstructure ; void growth ; FEM model ; material testing ; geodesic dome ; seismic response ; dynamic analysis ; seismic analysis ; high temperature ; fire temperature ; residual strength ; heat accumulation factor ; variational asymptotic method ; reduced-order plate model ; orthogrid-stiffened panel ; free-vibration analysis ; global buckling ; steel plates ; ultrasonic tomography ; base material ; rock ; post-installed anchors ; adhesive anchor ; mechanical anchor ; load-bearing capacity ; GSI ; RMR ; rebound value ; rebound hammer ; semi-flexible pavement ; fatigue resistance ; cracking mechanism ; fatigue prediction ; fracture surface ; cement–cellulose composites ; ventilated façade ; acoustic emission method ; frequencies of acoustic emission signals ; geosynthetic ; design ; pullout resistance ; effective length ; reinforced earth ; clay bricks ; cement lime mortar ; infill masonry wall ; destructive force ; self-stressed anti-washout concrete ; segment assembly ; undrained strengthening ; axial compression test ; mechanical properties ; CFRP grid ; PCM ; interface ; mechanical model ; pull-out test ; finite element analysis ; external walls ; thermal measurements ; R-value ; thermal resistance ; temperature-based method ; heat flow meter method ; infrared thermography method ; 3D textile composite ; equivalent model ; buckling analysis ; interlaboratory comparison (ILC) ; risk analysis ; measurements uncertainty (MU) ; ceramic tiles adhesive (CTA) ; assessment and verification of constancy of performance (AVCP) ; construction product ; market surveillance ; artificial weathering testing in civil engineering ; construction profiles ; natural fibre-reinforced polymer composites ; building performance assessment ; microstructure analysis ; stairs ; masonry ; clay brick ; arch ; vault ; management ; quality ; light detection and ranging (LiDAR) ; TLS ; low-temperature construction additive ; preparation method ; volumetric properties ; modification mechanism ; mixture performance ; bio-rejuvenated additive ; 100% rejuvenation ; reclaimed asphalt pavement ; regeneration mechanism ; pavement performance ; macro-strain mode ; medium- and small-span bridges ; wavelet transform ; cross-correlation function ; hygrothermal simulation ; capillary active internal insulation ; mould risk ; moisture effects ; subgrade ; static load test ; deformation modulus ; reliability ; fine-grain concrete ; bond ; industrial computed tomography ; numerical simulation ; xCT ; rectangular profile ; torsional stiffness ; stiffness increase ; research ; guided waves ; longitudinal wave ; discrete element method ; numerical modelling ; dispersion curves ; recycled aggregate concrete ; sustainable aggregate ; flexural strength ; gradient boosting ; random forest ; ventilated facades ; large-scale model ; fibre cement boards ; fire exposure ; Bayesian approach ; prestressing force ; saw-cut method ; assessment ; pre-tensioned members ; waste from enrichment of water-soluble ores ; artificially supported mining method ; backfill ; activation ; nanomodifier astralene ; ultimate compressive strength ; cement ; air-entraining admixture ; plasticizing ; porosity ; air-content ; strength ; freeze-thawing resistance ; storage systems ; looseness ; stiffness ; beam-end connection ; bending ; gap ; clearance ; plastic viscosity ; yield stress ; machine learning ; volcanic soil ; mechanical property ; strength index ; particle crushing ; road engineering ; pavement ; fatigue ; modules ; FEM ; light weight deflectometer ; solid fired brick ; defects in the internal structure ; resonant pulse method ; material durability ; drying of soil ; microwave heating ; soil structure ; computed microtomography ; water content ; buckling ; stability ; civil engineering ; slender bars ; columns ; numerical analysis ; variable cross-section ; waste glass ; recycling ; construction materials ; sustainable concrete ; steel fiber ; building material ; fibers ; mortar ; hybrid ; artificial neural networks ; fibre-cement boards ; acoustic emission ; SEM ; steel fibers ; steel fiber-reinforced concrete ; backfill mining ; loading rate ; cumulative ringing count ; damage constitutive model ; CFRP ; bond–slip law ; RC slab ; retrofit ; strengthen ; self-compacting concrete ; prediction models ; FRP ; continuous RC slab ; optimal design ; asphalt aging ; material property ; climate condition ; pavement structure ; field rut depth ; precast concrete products ; quality control ; OC curve ; AOQ curve ; shear wave velocity ; bender elements ; triaxial testing ; micromechanics ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TN Civil engineering, surveying and building::TNK Building construction and materials::TNKX Conservation of buildings and building materials
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-07-14
    Description: Marine engines are efficient machines, but stricter legislation about emissions makes continuous research necessary in order to reduce their consumption and improve their efficiency. This Special Issue, “Marine Engines Performance and Emissions II”, is a continuation of “Marine Engines Performance and Emissions”. It contains a set of peer-reviewed works about marine engine performance and emissions.
    Keywords: turbocharger diagnostics ; large diesel engine ; acoustic spectral analysis ; DFT leakage ; mechanical properties ; tensile strength ; laser sintering ; fracture ; additive technology ; rapid prototyping ; silencer ; composite scrubber ; transmission loss ; pressure drop ; noise reduction ; sulfur oxides ; marine gearboxes ; gear wheel shapes ; forged spur gear ; casted spur gear ; meshing stiffness ; gear teeth deformation ; FEM ; emissions ; alternative fuels ; combustion engine ; environment ; ammonia ; decarbonization ; marine engines ; ship emission ; scenario simulation ; automatic identification system (AIS) ; carbon emissions ; geographic information system (GIS) ; linear rolling systems ; ship emissions ; vibrodiagnostics ; wear ; compact system ; sold liquids ; metrology ; gas station dispensers ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-30
    Description: The delicate balance of resource intensity and efficiency of a solution for a very complex problem raises the issue of how these aspects constitute a symmetrical or asymmetrical system. Computational Intelligence (CI) offers a plethora of efficient tools for the potential and rather good quality solution of highly complex, often mathematically intractable problems. This "toolbox" is one of the best examples for the study of the above mentioned issue, namely, how to find the best balance, how to establish a symmetry of weights or costs in a particular field, for a particular problem. This special issue presents a number of interesting novel applications of CI for the tackling of a wide variety of difficult problems. The Introduction gives a short insight into the symmetry and asymmetry aspect of the topic.
    Keywords: lung nodule segmentation ; 3D-UNet ; 3D-Res2UNet ; multi-scale features ; deep learning ; butterfly optimization algorithm (BOA) ; particle swarm optimization (PSO) ; cubic map ; nonlinear ; high dimension ; extensional fuzzy numbers ; MI-algebras ; similarity ; arithmetics of fuzzy numbers ; orderings ; fuzzy interpolation ; economic data ; air defense system ; artificial immune system ; command and control ; learning classifier system ; multi-agent systems ; weapon-target assignment ; energy optimization ; genetic algorithms ; multi-objective optimization ; artificial neural network simulator ; artificial intelligence ; artificial bee colony algorithm ; global optimization ; neural network ; nonlinear static system ; behavioural finance ; imprecision ; oriented fuzzy number ; oriented present value ; oriented return ; S-divergence ; S-distance ; spectral clustering ; text summarization ; recurrent neural network ; embedding ; dynamic memory network ; fuzzy-rough cognitive network ; fuzzy cognitive map ; granular computing ; fuzzy-rough sets ; stability ; convergence ; discrete bacterial memetic evolutionary algorithm ; simulated annealing ; flow shop scheduling problem ; global sensitivity analysis ; Sobol procedure ; fast algorithm ; convolutional neural network ; structure reduction ; pruning ; quality ; feature selection ; machine learning ; asexual ; genetic algorithm ; android malicious application detection ; bees algorithm ; training deep neural networks ; metaheuristics ; opinion mining ; recurrent neural networks ; sentiment classification ; natural language processing ; data augmentation ; fine-tuning ; generative models ; StyleGAN ; transfer learning ; present value ; discount factor ; portfolio ; finance ; optimization ; tourist trip design ; vehicle routing ; key performance indicator (KPI) ; anomaly detection ; variational auto-encoder (VAE) ; support vector data description (SVDD) ; FMEA ; Fuzzy Logic ; greenhouse gases ; blockchain ; difficulty adjustment ; proof-of-work ; ANN ; AlexNet ; COVID-19 ; TSA ; commonsense ; knowledge graph ; linguistic terms ; language models ; n/a ; thema EDItEUR::K Economics, Finance, Business and Management::KN Industry and industrial studies::KNT Media, entertainment, information and communication industries::KNTX Information technology industries ; thema EDItEUR::U Computing and Information Technology::UY Computer science
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-06-23
    Description: The human body poses various biological barriers to protect itself from pathogens, foreign materials and is important for its functioning and development. This reprint serves as a collection of research and review articles describing novel approaches and new therapeutic modalities to overcome biological barriers. This collection is a must read for scientists working in the field of drug and vaccine delivery.
    Keywords: blood-brain barrier ; integrity marker ; sorbitol ; positron emission tomography ; focused ultrasound ; zolmitriptan ; intranasal ; bilosomes ; sodium deoxycholate ; mucoadhesive gel ; brain targeting ; blood–brain barrier ; drug formulation ; drug hybrids ; intra-arterial delivery ; intracranial malignancies ; intranasal delivery ; monoterpene ; monoterpenoid ; NEO100 ; carbomer hydrogel ; whitening agents ; enhancers ; enhancement site and mechanism ; drug release and permeation ; inhaled drug delivery ; prodrug ; liposome formulation ; propofol ; micelle ; DSPE mPEG2k ; Solutol HS 15 ; diclofenac ; optimization ; pharmacokinetic ; pharmacodynamic study ; long acting ; sustained delivery ; biologics ; silica microparticles ; exosome ; brain delivery ; BBB crossing ; transcytosis ; peptide-drug conjugates ; blood–placental barrier ; Zika virus ; BBB shuttles ; porphyrins ; antivirals ; epidermal growth factor receptor ; non-small cell lung cancer ; Lamin B2 ; AMPK ; Osimertinib ; RNA seq ; proteomics ; RT-PCR ; blood–brain tumor barrier ; permeabilization ; brain tumors ; primary central nervous system lymphoma ; tumor necrosis factor-alpha ; targeted delivery ; vascular targeting ; CD13 ; TNF ; TNF receptors ; NGR-TNF ; polyamidoamine dendrimers ; diabetic retinopathy ; protein kinase C-β inhibitor ; nanoparticles ; ruboxistaurin ; blood brain barrier ; electropermanent magnet ; magnetic resonance imaging ; n/a ; bic Book Industry Communication::M Medicine ; bic Book Industry Communication::K Economics, finance, business & management::KN Industry & industrial studies::KND Manufacturing industries::KNDP Pharmaceutical industries
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-09-11
    Description: In the context of the food industry, "Innovative Food Products and Processing" refers to the creation and application of cutting-edge techniques, technologies, and approaches. This vibrant industry covers a broad range of topics, with the aim of enhancing food quality, safety, sustainability, and the consumer experience. This Special Issue, entitled “Innovative Food Products and Processing” provides readers with a wide range of topics and applications in food science and technology, such as the use of food chemistry, biochemistry, fermentation, and microbiology, as well as new contemporary processing and preservation technologies and techniques for effective waste management and green technology for the food processing industry. “Innovative Food Products and Processing” is an excellent resource for food science researchers, food scientists, biochemists, nutritionists, and students. This publication's wide range of topics provides a complete overview of the most recent breakthroughs, cutting-edge technologies, and emerging trends in the food industry.
    Keywords: bambangan ; extraction solvents ; fatty acid ; triacylglycerol ; crystalline microstructure ; Bario ; rice flour ; gluten-free ; bread ; amylose content ; encapsulation ; non-dairy ; probiotics ; stability ; storage ; Auricularia cornea ; wood ear mushroom ; instant noodles ; glycaemic response ; by-product ; needlefish (Tylosurus acus melanotus) ; acid-soluble collagen extraction ; physicochemical ; characterization ; chlorophylls ; green colour ; antioxidant activity ; amaranth ; metal ions ; optimization ; response surface methodology ; lactobacillus ; bifidobacterium ; Eucheuma denticulatum ; seaweed oligosaccharide ; HMF ; chokeberry ; wort ; mint essential oil ; malt ; polyphenols ; anthocyanins ; antioxidant capacity ; green banana flour ; soy protein isolate ; emulsifier ; cake ; resistant starch ; dietary fiber ; esters ; brandy ; HS-SPME/GC-MS ; cold stabilization ; multivariate statistics ; egg white ; pulses ; foaming agent ; aerated foods ; canned liquid ; seaweed ; reduced salt ; meat emulsion ; physicochemical properties ; sensory ; meat products ; patty ; microencapsulation ; nanoemulsion ; trans-cinnamaldehyde ; spray-drying ; freeze-drying ; n/a ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PN Chemistry ; bic Book Industry Communication::P Mathematics & science::PN Chemistry::PNF Analytical chemistry
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-02
    Description: Biomimetic polymers and materials have been widely used in a variety of biomedical and pharmacological applications. Particularly, collagen-based biomaterials have been extensively applied in various biomedical fields, such as scaffolds in tissue engineering. However, there are many challenges associated with the use of mammalian collagen, including the issues of religious constrains, allergic or autoimmune reactions, and the spread of animal diseases. Over the past few decades, marine collagen (MC) has emerged as a promising biomaterial for biomedical and pharmacological applications. Marine organisms are a rich source of structurally novel and biologically active compounds, and to date, many biological components have been isolated from various marine resources. MC offers advantages over mammalian collagen due to its water solubility, low immunogenicity, safety, biocompatibility, antimicrobial activity, functionality, and low production costs. Due to its characteristics and physicobiochemical properties, it has tremendous potential for use as a scaffold biomaterial in tissue engineering and regenerative medicine, in drug delivery systems, and as a therapeutic. In this Special Issue, we encourage submissions related to the recent developments, advancements, trends, challenges, and future perspectives in this new research field. We expect to receive contributions from different areas of multidisciplinary research, including—but not restricted to—extraction, purification, characterization, fabrication, and experimentation of MC, with a particular focus on their biotechnological, biomedical and pharmacological uses.
    Keywords: porifera ; demosponges ; biomaterial ; collagen ; spongin ; wound healing ; lizardfish scale ; marine collagen ; thermal stability ; cell viability ; biomechanical properties ; collagen membrane ; AFM ; SEM ; tensile test ; giant squid ; Dosidicus Gigas ; jumbo squid ; outer tunic ; tissue engineering ; peptidase ; the MEROPS S8 family ; bovine bone collagen ; oligopeptides ; hydrolysate ; cisplatin ; fish collagen peptides ; thymic epithelial cells ; reactive oxygen species ; apoptosis ; MAPK (p38 MAPK, JNK, and ERK) pathway ; carbonated hydroxyapatite ; fishery by-product ; 3D scaffold ; bone regeneration ; blacktip skin collagens ; amino acid profile ; protein pattern ; microstructure ; Col-TPU composite nanofiber membranes ; electrospinning ; mechanical properties ; stromal vascular fraction ; vascularization ; blue shark skin collagen ; 3D constructs ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-28
    Description: The aim of this reprint devoted to the topic “Polymers and the Environment” was to pursue environmentally friendly objectives for polymer-based materials under a two-fold perspective, applied and academic. In the 1980s, the first global environmental crisis occurred with an emphasis on the role of plastics in big cities’ massive solid waste streams. It was apparent then (and now) that the best environmental management practices required solid scientific and technical knowledge. Moreover, once at the end of their useful life, these plastics become involved in their materials (polymers and additives) into a circular economy strategy conjugated with the non-steady scenarios of the other key sectors of the economy, industry, society, and policy. Thus, linking tandem polymers and the environment has led, 40 years later, to a wide polymer research field devoted to continuously improving the environmental performance of polymer and polymer-based materials. This strategy comprises all the steps in the polymer management chain, from the raw materials to the polymers, many of which come from classical and renewable sources (the so-called bioplastics). Additionally, there is a need to improve the processability, ultimate properties, and performance by employing friendly environment additives; the recyclability of the materials; and the development of innovative and disruptive processes allowing better mechanical and energy recovery, including chemical recycling. This reprint includes approaches related to this frontrunner polymer science and technology area.
    Keywords: viscoelasticity ; material parametrization ; WLF coefficients ; pole–zero formulation ; fractional model ; circular economy ; upcycling ; sustainability ; polyblends ; rPP ; PA66 ; rPET-O ; recycling ; polypropylene ; stabilization additive ; rheological properties ; thermal properties ; mechanical properties ; bio-based ; thermosetting ; thermoplastic ; nanocomposites ; lignin nanoparticles ; mixed plastic packaging waste ; recycled plastics ; compression moulding ; mechanical testing ; fracture surface ; mixed polyethylenes ; polymer flooding ; alkali–polymer flooding ; chemically enhanced oil recovery ; incremental oil recovery ; PLA ; cellulose ; yerba mate ; kombucha ; food packaging ; biochar particles ; sustainable materials ; polymers ; biopolymers ; asphalts ; bio-based plastics ; plant growth ; seed germination ; terrestrial ecosystem ; PBAT ; biodegradable polymers ; blends ; shape memory polymers ; n/a ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general ; thema EDItEUR::K Economics, Finance, Business and Management::KC Economics::KCV Economics of specific sectors::KCVG Environmental economics
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-28
    Description: The use of composite materials is ubiquitous in every field of human activities, including in the agricultural, industrial, environmental, biomedical and transport sectors. After a pandemic with the simultaneous unfolding of an energy and climatic crisis, we now realize how necessary it is to carry out studies on composite materials based on polymers to positively affect our current society and, in particular, future generations.To this aim, in the present selection of scientific articles we have given visibility to worthy contributions on a wide variety of topics, highlighting how essential plastic-based composite materials and their derivatives are in our daily lives. The articles in this Special Issue were wide-ranging and devoted to the properties and characterization of composites for innovative and strategic applications and, more generally, for the development of the chemical–physical properties of these materials.
    Keywords: recycled borosilicate ; PTFE ; sintering ; permittivity ; high-frequency ; substrates ; carbon fibers ; polymer-matrix composites (PMCs) ; thermoplastic resin ; surface treatment ; ethylene vinyl acetate copolymer ; EVA nanocomposite ; Layered Double Hydroxide (LDH) ; photo-oxidation ; degradation ; gas permeation ; ball milling ; doping ; carbon nanotubes ; functionalization ; optical characterization ; DFT ; solar cells ; bulk fill ; composite resin ; restorative materials ; surface characterization ; energy-dispersive X-ray spectroscopy ; scanning electron microscopy ; microbial adherence ; bioreactor ; bacterial biofilm ; Streptococcus mutans ; composite polymer materials ; hollow profile ; 3D printing ; fused deposition modeling ; FEM analysis ; SEM analysis ; flax/PLA ; polymer-matrix composites ; hybrid ; particle-reinforcement ; mechanical properties ; electron microscopy ; surface treatments ; cotton fabric ; TiO2 nanoparticles ; citric acid ; Quat 188 ; curcumin ; antibacterial ; UV blocking ; durability ; carbon-fiber composite ; 3D reinforced composite ; digital image correlation ; destruction ; cold climate ; epoxy binder ; basalt fiber ; BFRP ; rebar ; moisture uptake ; diffusion coefficient ; Fick’s diffusion ; PCM ; acrylic resin ; candidiasis ; nanodiamonds ; surface properties ; polymerization ; PLA ; HDPE ; biocomposites ; mold ; bark ; resins ; carbon fiber cloth ; sandwich structure ; graphene ; absorbing performance ; mechanical property ; polymeric composites ; composite technology ; vacuum infusion ; process modeling and optimization ; multi-criteria decision ; Pareto frontier ; dental prosthesis biopolymer ; hardness ; tensile bond strength ; thermoplastic composites ; reactive injection pultrusion ; impregnation ; numerical simulation ; void content ; hygrothermal aging ; micromechanics ; failure mechanism ; metal/composite ; L-joint ; bonding length ; failure mode ; equivalent ; RVE ; filament winding ; winding trajectory ; composite casing ; polymer composite ; nitrile butadiene rubber ; phenolic resin ; rheology ; nanoparticles ; organoclay ; thermal stability ; marine biomaterials ; marine origin biopolymers ; factorial design ; optimization ; cryo-environment ; cartilage tissue ; triaxial geogrid ; stretching process ; composite manufacturing ; thermosetting polymers ; cure behaviour ; process monitoring ; in situ cure monitoring ; sensors ; squeezing mechanical analysis ; rubber strip cold-feed process ; viscoelastic rubber strip ; embolic agent ; hemodynamics ; arteriovenous malformation (AVM) ; CFD ; rotomolding ; microwave heating ; microwave-active materials ; polyethylene processing ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general ; thema EDItEUR::P Mathematics and Science::PH Physics
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: Additive manufacturing (AM) has been at the center of attention of studies and industry. The AM process involves gradual build-up in layers, and capability in the fabrication of complex shapes with low cost. Advances in the processing of polymers and polymer composites with this method are in the domain of this journal, which can provide a vital resource for anyone involved in additive manufacturing. This Special Issue cover original reviews and research articles dedicated to: AM processes of manufacturing and materials; Process–microstructure/morphology–properties relationships; Optimization of process parameters; Mechanical properties of fabricated parts; Modeling and simulation.
    Keywords: hybrid bio-inspired design ; nacre ; woodpecker beak ; mechanical performance ; failure mode ; finite element simulation ; Taguchi design ; ANOVA ; FFF ; response surface ; cylindricity ; process optimization ; polymer gear ; additive manufacturing ; differential pressure vacuum casting ; polyurethane resin ; abrasion ; fused filament fabrication ; temperature distribution modelling ; dynamic and static model ; thermal history ; impeller ; polymers ; polymer composites ; manufacturing process ; conventional manufacturing ; injection moulding ; performance ; face mask ; medical devices ; filtration performance ; 3D reconstruction ; customized implant ; PEEK ; accuracy evaluation ; finite element analysis ; 3D printing ; fused deposition modeling ; tensile testing ; infill rate ; crystallizable PET ; micromechanical model ; viscoplasticity ; temperature effect ; biaxial loading ; polylactic acid (PLA) ; dimensional deviation ; definitive screening design ; desirability function ; material extrusion ; rheological behavior ; mechanical properties ; temperature profile ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TN Civil engineering, surveying and building::TNK Building construction and materials::TNKX Conservation of buildings and building materials
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-11-30
    Description: Pavement materials such as asphalt mixtures, granular aggregates, and soils exhibit complex material properties and engineering performance under external loading and environmental conditions. For instance, the asphalt mixture shows highly nonlinear viscoelastic and viscoplastic properties at high temperatures, and it presents fatigue cracking damage and fracture properties at intermediate or low temperatures. Constitutive models based on mechanics theories have been the kernel of performance prediction of pavement infrastructures and materials. They lay down a solid foundation for material selection, design, pavement structural evaluation and maintenance decisions. Advances in mechanics modeling and associated experimental testing for pavement infrastructures and construction materials are emerging constantly, such as nonlinear viscoelasticity, viscoplasticity, fracture, and damage mechanics models. Meanwhile, various numerical modeling technologies are being developed and implemented to solve the multiscale and multiphysical equations. Examples include finite element, discrete element, and micromechanics or molecular dynamics simulations at different dimensions and scales. This reprint provides a unique platform, presenting novel studies and new discoveries in the areas of mechanics, numerical modeling and experimental testing of pavement infrastructures and materials.
    Keywords: large-size graded crushed stone ; cyclic rotating axial compression ; shakedown theory ; cumulative axial strain ; long-term stability ; critical load ; self-healing asphalt ; fatigue life ; induction heating ; calcium alginate capsules ; combined healing system ; CR/SBS modified asphalt ; desulfurized rubber ; rheology ; Burgers’ model ; multiple stress creep recovery ; soft soil ; stabilized soil ; rice husk ash ; Mechanistic-Empirical creep model ; matric suction ; asphalt pavement ; sand accumulation conditions ; skid resistance ; British Pendulum Number (BPN) ; texture index ; SBS ; polymer additive ; aging property ; rheological properties ; FTIR ; pavement materials ; asphalt mixture ; compressive creep ; damage evolution ; fractional rheology theory ; viscoelasticity ; airfield ; concrete pavement ; fatigue model ; slab thickness ; improvement method ; asphalt concrete ; Prony series ; Havriliak-Negami (HN) model ; 2S2P1D model ; continuous relaxation and retardation spectra ; basalt fiber ; crack resistance ; environmental scanning electron microscope ; embedded sensor ; Rollpave pavement ; three-point bending test ; dynamic response ; finite element analysis ; packaging optimization ; wet-process tuff silt powder ; RPC ; mechanical properties ; microstructure ; tire-pavement friction ; pavement textures ; partial tire aquaplane conditions ; water film ; vertical contact force ; molecular dynamics ; wax warm mix asphalt ; contact angle test ; pull-off test ; Fourier transform infrared spectroscopy ; adhesion work ; bridge deck pavement ; interlayer bond strength ; adhesive material ; emulsified asphalt ; shear stress ; air-void characteristics ; fractal dimension ; crack initiation and propagation ; rutting damage ; Computed Tomography ; image process ; gradation analysis ; asphalt mastic ; lignin fiber ; carbon fiber ; burgers model ; 3D reconstruction ; digital image processing (DIP) ; computed tomography (CT) ; mesostructure ; asphalt binder ; warm-mix asphalt (WMA) ; reclaimed asphalt pavement (RAP) ; rheological behavior ; performance ; road engineering ; cold in-place recycling ; high temperature stability ; cracking resistance ; moisture susceptibility ; granular material ; discrete element method ; modeling theories ; hexagonal close-packed structure ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: Materials processing is the first, and a key, step in proper utilization of the composition of a given material and to realize the microstructural features that are intended to attain desired property levels for a given application. Both primary and secondary processing methods are equally important in tailoring the end properties of materials. In view of the crucial importance of the processing of materials, this Special Issue is intending to cover all innovative aspects of primary processing (solid phase, liquid phase, two phase, 3D printing, rapid solidification, etc.) and secondary processing (such as variations in extrusion, forging, rolling, equichannel angular extrusion, etc.) of materials (polymers/metal/ceramic-based, including their composites). Desirable attributes expected for submission will be processing–microstructure–property interrelations.
    Keywords: electrical discharge machining ; vibroacoustic emission ; adaptive control ; monitoring ; discharge gap ; erosion products ; silver nanoparticles ; mulberry leaves extract ; CO2-assisted polymer compression ; numbering-up ; high productivity ; CO2 ; polymer ; porous material ; process improvement ; 1D magnetic photonic crystals ; multilayer film modeling ; modeling of Faraday rotation spectra ; MPC optimization ; exhaustive computation ; materials characterization ; nanoceramics ; coatings ; auxiliary electrode ; electrical conductivity ; oxides ; nitrides ; carbon particles ; oil medium ; additive technologies ; additive manufacturing ; FFF ; 3D printing ; nylon ; cryogenic machining ; review ; liquid nitrogen ; liquid carbon dioxide ; thermomechanical processing ; bobbin friction stir welding ; atomic force microscopy ; AA6082-T6 aluminium alloy ; dynamic recrystallization ; precipitation ; macroscopic self-standing architectures ; Ni-doped MnO2 ; Co-doped MnO2 ; propane oxidation ; mechanical properties ; 3D-printing ; compensation ; accuracy ; precision ; adsorption ; hydrotalcite ; thiophene/dibenzothiophene ; n-pentane ; desulfurization ; structural ceramic ; oxide ceramic ; EDM ; ZrO2 ; Al2O3 ; electrode ; thin films ; white layer ; electro physics ; chemical reactions ; sublimation ; friction stir welding ; WC ; AA1100 aluminium plate ; weld contamination ; tunnel void ; kissing bond ; erosion ; tool wear ; ZnNix ; explosive deposition ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGM Materials science
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-28
    Description: This reprint titled “Analysis of Natural Bioactive Compounds in Plant, Food, and Pharmaceutical Products Using Chromatographic Techniques” deals with the separation and analysis of natural bioactive compounds in plants, foods, and pharmaceutical products. A growing tendency toward the discovery and use of natural bioactive compounds that are least harmful, have the fewest side effects, and fit the human body the most naturally has been noticed during the past few decades. As evidenced by the rise in recent studies on the therapeutic properties of plants, this trend has caused a return of healthcare professionals to nature and plants, but with a modern approach that specifically questions how plants help to heal humans and what their exact effects on the human body are. In order to identify and analyze natural bioactive compounds in plant, food, and pharmaceutical products, this reprint attempted to compile latest improvements, advancements, and analytical innovations in chromatographic techniques. In the last few decades, tremendous research on the analysis of natural bioactive compounds in plants, foods, and pharmaceutical products using wide range of chromatography techniques have been performed. This reprint has brought together prominent researchers who have explored a diverse applications range of chromatographic techniques in the extraction, separation, identification, and analysis of natural bioactive compounds.
    Keywords: C. indica ; propolis ; GC-MS ; antibacterial ; bioactive compounds ; chemical composition ; AGREE ; Curcuma longa ; curcumin ; nanoemulsion ; greener HPLC ; validation ; lavender oil ; cytotoxic ; scolicidal ; Musca domestica ; acaricide ; capillary electrophoresis ; fluorescence detection ; honey ; sugars ; breast cancer ; liquid chromatography ; bioanalytical methods ; neratinib ; naringenin ; dosage form ; HPLC ; pterostilbene ; solubility ; stability ; lamb meat ; heterocyclic aromatic amines ; roasted ; spices ; olive leaves ; extraction ; optimization ; ultrasound ; polyphenols ; flavonoids ; antioxidant ; Haberlea rhodopensis ; myconoside ; hispidulin 8-C-(6-O-acetyl-2″-O-syringoyl-β-glucopyranoside) ; GLUT1 transporter ; estrogen receptor and MYST acetyltransferase ; Gymnosperma glutinosum ; cosmetology ; skin care ; antioxidants ; bisabolol ; n/a ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general ; thema EDItEUR::P Mathematics and Science::PN Chemistry ; thema EDItEUR::P Mathematics and Science::PN Chemistry::PNF Analytical chemistry
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-04-05
    Description: This book, entitled “Smart Textile and Polymer Materials”, is dedicated to recent research and development regarding smart textiles and response-based polymer materials, including, but not limited to, fiber-based energy harvesting devices, energy storage devices, chromatic devices, color and shape changes, sensing, drug release, and ultraviolet resistant, electrically conductive, optical, hydrophobic and flame-retardant materials.
    Keywords: carbon fiber composite ; tensile strength ; laminate ; tensile property ; knitted fabrics ; strain sensors ; size prediction ; precise positioning ; human motion detection ; solid rocket motor case (SRMC) connector ; carbon fiber ; lay-up ; mechanical properties ; finite element ; knitted sensor ; equivalent resistance ; topology model ; volume resistance ; three-dimensional ; SEBS ; MWCNTs ; yarn ; dopamine ; strain sensor ; alginate fiber ; preparation method ; application properties ; characterization ; helical ; nonwoven ; curvature ; film thickness ; image ; transmission ; scattered photometric ; Kubelka-Munk ; Fe2O3 ; carbon nanofibers ; heterogeneous Fenton ; methyl orange (MO) ; LIBS ; CN band ; polymer ; nylon ; doped nylon ; molecular structure ; plasma parameters ; laser irradiance ; direct electrostatic deposition ; proton exchange membrane ; direct methanol fuel cell ; ultrathin membrane ; high power density ; fabric CAD ; irregular 3D yarn ; B-spline curve ; fabric structure ; key point mapping ; piezoelectric property ; polyacrylonitrile ; poly(vinylidene fluoride) ; ZnO nanorods ; electrospinning ; nitrogen doping ; small-sized graphene core-sheath ; graphene fiber ; supercapacitors ; polyvinylidene fluoride ; piezoelectric properties ; biomedicines ; energy ; photocatalysis ; metal-composite hybrid structure ; residual strain ; dynamic characteristic ; optical fiber sensors ; metal-CFRP-metal hybrid tube ; multiwalled carbon nanotubes ; acid treatment ; polyimide film ; physical-chemical properties ; melt-blowing ; coupled field ; annular die ; numeral calculations ; polyamide-imide ; structural construction ; air filtration ; binary aerogels ; electrospun polyacrylonitrile membranes ; fluorine-free hydrophobic modification ; amino functional modified polysiloxane ; in situ cross-linking reaction ; waterproof breathable ; personal cooling garments ; thermal comfort ; ice cooling ; phase change material cooling ; radiative cooling ; air cooling ; liquid cooling ; thermoelectric cooling ; energy conversion ; triboelectric nanogenerators ; 1D device ; woven ; knitted ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PH Physics
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-02
    Description: With the increasing requirements for energy, resources, and space, numerous rock engineering projects (e.g., mining, tunnelling, underground storage, and geothermal and petroleum engineering) are more often being constructed and operated in large-scale, deep underground, and complex geology environments. Meanwhile, more and more unconventional rock failures and rock instabilities (e.g., rockbursts, large-scale collapses, and mine earthquakes) are occurring and severely threatening the safety of underground operations. It is well-recognized that rocks have multiscale structures from minerals, particles, fractures, fissures, joints, and stratification to faults and involve multiscale fracture processes. In the deep earth, rocks are commonly subjected to complex high-stress and strong-dynamic disturbances simultaneously. In addition, there are many multiphysics coupling processes, such as the coupled thermo-hydromechanical interaction in fractured porous rocks. It is still difficult to understand rock mechanics and to characterize rock behaviors with complex stress conditions, multiphysics processes, and multiscale changes. The primary aim of this Special Issue is to bring together original research discussing innovative efforts on analytical, numerical, and big-data-based methods in rock mechanics. It includes 25 manuscripts that illustrate the richness and challenging nature of deep rock mechanics.
    Keywords: complex variable method ; conformal mapping ; triangle interpolation ; stress analytical solution ; DEM numerical simulation ; laterally loaded pile ; p–y curve ; soil-pile interface ; Drucker–Prager model ; mine slope ; stability classification of rock mass ; extremum entropy ; variable weight theory ; matter–element extension ; grade variable ; polymer ; diffusion model ; crack ; expansion ratio ; grouting amount ; rockburst classification ; data-driven approach ; random forest ; beetle antennae search algorithm ; high concrete face rockfill dam ; geosynthetic-reinforced soil structures ; generalized probability density evolution method ; seismic performance ; reliability analysis ; numerical methods ; deep rock mechanics ; rock damage judgment criteria ; SPH ; blind shaft cutting blasting ; coal ; deterioration characteristics ; chemical-stress coupling factor ; damage constitutive model ; rock burst ; t-SNE ; unsupervised learning ; supervised learning ; XGBoost ; true triaxial compression test ; acoustic emission ; b value ; rock drillability ; DPM parameters ; regression analysis ; RF ; GA-SVM ; UCS prediction model ; fractured rock mass ; uranium-containing solution ; multifield coupling ; reactive transport ; rough-walled fracture ; lithology ; concrete part ; mechanical and damage behaviors ; rockburst prediction ; deep forest ; bayesian optimization ; ensemble model ; zonal disintegration ; jointed rock mass ; stress redistribution ; strength reduction ; numerical simulation ; genetic algorithm ; BP neural network ; smooth wall blasting ; parameter optimization ; deep mining ; mining disturbance ; stress evolution ; brittle-ductile transition ; backfilled stopes ; fractured aquifer ; Bingham slurry ; grout diffusion model ; slurry diffusion distance ; grouting effect ; submarine slides ; submarine pipelines ; copula function ; reliability ; slide–pipeline interaction ; strain rate ; temperature effect ; mechanical properties ; energy dissipation features ; failure modes ; fault ; water inrush ; mechanical behavior ; mining advancing direction ; mind evolutionary algorithm ; MEA-BP model ; rock mechanical parameters ; orthogonal test method ; heat-concentrated source ; optimization of heat source location ; temperature gradient ; closed-form solution ; temperature difference ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This reprint was proposed and organized as a means to present recent developments in the field of testing of materials and elements in civil engineering. For this reason, the articles highlighted in this editorial relate to different aspects of this topic, from building materials to building structures. The current trend in the development of materials testing in civil engineering is mainly concerned with the detection of flaws and defects in elements and structures using destructive, semidestructive, and nondestructive testing.
    Keywords: timber structures ; estimating mechanical parameters ; small clear specimens ; non-destructive tests ; semi-destructive tests ; resistance drilling ; ultrasonic wave ; stress wave ; visual grading ; concrete ; NDT ; finite element method ; experiment ; automated inspection ; frequency domain ; validation ; sulfate attack ; physical and mechanical properties ; damage model ; microstructure ; external thermal insulation systems ; mechanical properties of bonds ; polyurethane adhesive ; timber frame building ; bond strength ; shear properties ; residual magnetic field ; Barkhausen noise ; LCR circuits ; plastic deformation ; austenitic steel ; steel fibre-reinforced concrete ; steel fibres ; waste sand properties ; reinforced beam ; shear cracking ; shear capacity ; non-destructive testing ; damage detection ; vibrations ; modal analysis ; continuous wavelet transform ; concrete beam ; strengthening ; adhesive joint ; debonding ; S355 steel ; uniaxial tensile test ; strength properties ; true stress-strain relationships ; confining pressure ; expansive clay ; fiber ; flexible wall permeameter ; hydraulic conductivity ; lime ; rigid wall permeameter ; concrete corrosion ; concrete protection ; steel corrosion ; concrete durability ; coating materials ; masonry structures ; autoclaved aerated concrete masonry units (AAC) ; compressive strength ; minor-destructive (MDT) techniques ; non-destructive (NDT) techniques ; ultrasonic testing ; acoustoelastic effect (AE) ; hydrostatic stresses ; modeling ; DIC technique ; ready-mixed concrete ; construction architecture material ; inter-laboratory comparisons (ILC) ; proficiency testing (PT) ; concrete quality assessment ; fracture mechanics ; ductile fracture ; material microstructure ; void growth ; FEM model ; material testing ; geodesic dome ; seismic response ; dynamic analysis ; seismic analysis ; high temperature ; fire temperature ; residual strength ; heat accumulation factor ; variational asymptotic method ; reduced-order plate model ; orthogrid-stiffened panel ; free-vibration analysis ; global buckling ; steel plates ; ultrasonic tomography ; base material ; rock ; post-installed anchors ; adhesive anchor ; mechanical anchor ; load-bearing capacity ; GSI ; RMR ; rebound value ; rebound hammer ; semi-flexible pavement ; fatigue resistance ; cracking mechanism ; fatigue prediction ; fracture surface ; cement–cellulose composites ; ventilated façade ; acoustic emission method ; frequencies of acoustic emission signals ; geosynthetic ; design ; pullout resistance ; effective length ; reinforced earth ; clay bricks ; cement lime mortar ; infill masonry wall ; destructive force ; self-stressed anti-washout concrete ; segment assembly ; undrained strengthening ; axial compression test ; mechanical properties ; CFRP grid ; PCM ; interface ; mechanical model ; pull-out test ; finite element analysis ; external walls ; thermal measurements ; R-value ; thermal resistance ; temperature-based method ; heat flow meter method ; infrared thermography method ; 3D textile composite ; equivalent model ; buckling analysis ; interlaboratory comparison (ILC) ; risk analysis ; measurements uncertainty (MU) ; ceramic tiles adhesive (CTA) ; assessment and verification of constancy of performance (AVCP) ; construction product ; market surveillance ; artificial weathering testing in civil engineering ; construction profiles ; natural fibre-reinforced polymer composites ; building performance assessment ; microstructure analysis ; stairs ; masonry ; clay brick ; arch ; vault ; management ; quality ; light detection and ranging (LiDAR) ; TLS ; low-temperature construction additive ; preparation method ; volumetric properties ; modification mechanism ; mixture performance ; bio-rejuvenated additive ; 100% rejuvenation ; reclaimed asphalt pavement ; regeneration mechanism ; pavement performance ; macro-strain mode ; medium- and small-span bridges ; wavelet transform ; cross-correlation function ; hygrothermal simulation ; capillary active internal insulation ; mould risk ; moisture effects ; subgrade ; static load test ; deformation modulus ; reliability ; fine-grain concrete ; bond ; industrial computed tomography ; numerical simulation ; xCT ; rectangular profile ; torsional stiffness ; stiffness increase ; research ; guided waves ; longitudinal wave ; discrete element method ; numerical modelling ; dispersion curves ; recycled aggregate concrete ; sustainable aggregate ; flexural strength ; gradient boosting ; random forest ; ventilated facades ; large-scale model ; fibre cement boards ; fire exposure ; Bayesian approach ; prestressing force ; saw-cut method ; assessment ; pre-tensioned members ; waste from enrichment of water-soluble ores ; artificially supported mining method ; backfill ; activation ; nanomodifier astralene ; ultimate compressive strength ; cement ; air-entraining admixture ; plasticizing ; porosity ; air-content ; strength ; freeze-thawing resistance ; storage systems ; looseness ; stiffness ; beam-end connection ; bending ; gap ; clearance ; plastic viscosity ; yield stress ; machine learning ; volcanic soil ; mechanical property ; strength index ; particle crushing ; road engineering ; pavement ; fatigue ; modules ; FEM ; light weight deflectometer ; solid fired brick ; defects in the internal structure ; resonant pulse method ; material durability ; drying of soil ; microwave heating ; soil structure ; computed microtomography ; water content ; buckling ; stability ; civil engineering ; slender bars ; columns ; numerical analysis ; variable cross-section ; waste glass ; recycling ; construction materials ; sustainable concrete ; steel fiber ; building material ; fibers ; mortar ; hybrid ; artificial neural networks ; fibre-cement boards ; acoustic emission ; SEM ; steel fibers ; steel fiber-reinforced concrete ; backfill mining ; loading rate ; cumulative ringing count ; damage constitutive model ; CFRP ; bond–slip law ; RC slab ; retrofit ; strengthen ; self-compacting concrete ; prediction models ; FRP ; continuous RC slab ; optimal design ; asphalt aging ; material property ; climate condition ; pavement structure ; field rut depth ; precast concrete products ; quality control ; OC curve ; AOQ curve ; shear wave velocity ; bender elements ; triaxial testing ; micromechanics ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TN Civil engineering, surveying and building::TNK Building construction and materials::TNKX Conservation of buildings and building materials
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-03-07
    Description: Transportation, logistics, and supply chain systems and networks constitute one of the pillars of modern economies and societies. From sustainable traffic management in smart cities or air transportation to green and socially responsible logistics practices, many enterprises and governments around the world have to make decisions that affect the efficiency of these complex systems. Typically, optimization algorithms are employed to deal with these challenges, and simulation approaches are utilized when considering scenarios under uncertainty. However, better results might be achieved by hybridizing both optimization algorithms with simulation techniques to deal with real-life transportation, logistics, and SCM challenges, which often are large-scale and NP-hard problems under uncertainty conditions. Hence, simheuristic algorithms (combining metaheuristics with simulation) as well as other simulation optimization approaches constitute an effective way to support decision makers in such complex scenarios. This reprint presents a collection of selected articles on simulation optimization in transportation, logistics, and supply chain management. The reprint is strongly connected to the topics covered in the Winter Simulation Conference (WSC) track on logistics, transportation, and SCM, which includes a stream in simheuristic algorithms as well.
    Keywords: omnichannel retail stores ; vehicle routing problem ; pick-up and delivery ; biased-randomized heuristics ; simheuristics ; scheduling ; uncertainty ; discrete event simulation ; hybrid flow shop ; scrap ; local search ; tabu search ; machine qualifications ; clustering ; shortest processing time ; maritime transportation ; liner network design ; synchronization ; weather uncertainty ; optimization simulation ; discrete-event simulation ; simulation-based optimization ; assignment problem ; neighborhood search ; warehouse ; nonlinear-flight-mechanics ; neural networks ; guidance, navigation, and control ; machine learning ; model ; matlab-simulink ; stochastic project scheduling ; genetic algorithm ; composite priority rules ; agent-based simulation ; horizontal cooperation ; e-groceries ; optimization ; simulation ; logistics ; distribution networks ; container terminal ; meta-heuristic ; horizontal transportation ; hyper-parameter optimization ; hybrid modeling ; system dynamics ; facility location Problems ; Monte Carlo simulation ; automated parcel lockers ; last-mile delivery ; location routing problem ; heuristics ; fuzzy logic ; dockless bike-sharing system ; Markovian queueing network ; relocation ; unequal demand ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::R Earth sciences, geography, environment, planning::RG Geography
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-07-14
    Description: Plastic and reconstructive surgery has a broad spectrum of different reconstructive techniques, including split skin transplantation and local and free flaps. By means of microsurgery and perforator flaps, every reconstructive issue can be addressed by tailored techniques. Flaps can comprise different tissues and can be designed using new imaging technologies in order to increase the safety of the procedures and to retain the form and function of the reconstructed area in accordance with the donor site morbidity. This Special Issue of the Journal of Personalized Medicine focuses on the following topics:Individualized microsurgery;Flap imaging;Customized perforator flaps;Monitoring flap perfusion;Tailored tissue engineering for reconstruction;Biofabrication applications in personalized plastic and reconstructive surgery.
    Keywords: flap grafting ; microsurgery ; biosensor ; bioelectrical impedance ; rat ; hyperspectral imaging ; Allen’s test ; radial forearm free flap ; microvascular surgery ; reconstructive surgery ; perfusion monitoring ; flap imaging ; critical bone defect ; vascularized fibula ; Capanna technique ; Masquelet induced membrane ; intercalary reconstruction ; bone tumor ; ballistic trauma ; perforator flaps ; DIEP ; thermal imaging ; laser Doppler ; perineal reconstruction ; VRAM flap ; neourethra ; urethral reconstruction ; posttraumatic lymphedema ; long bone fractures ; soft tissue injury ; lower extremity ; HSI ; objective ; hyperspectral signature ; timely recognition ; reconstruction ; head and neck ; non-invasive ; non-contact ; cytostatic agents ; doxorubicin ; indocyanine green ; oncology ; perfusion ; surgical oncology ; peripheral nerve injury ; psychosocial factor ; nerve repair ; neuroma ; brachial plexus injury ; compression neuropathy ; pain ; depression ; disability ; quality of life ; scar ; scar therapy ; algorithm ; free flap ; tissue transfer ; perforator propeller flap ; combined perforator propeller flap ; soft tissue reconstruction ; propeller flap ; perforator flap ; irradiation ; imaging ; malperfusion ; sternal defect reconstruction ; deep sternal wound infection ; DSWI ; reconstructive microsurgery ; tensor fasciae latae flap ; TFL flap ; muscle transplantation ; rat gastrocnemius ; in situ stimulation ; muscle contraction ; perfusion-decellularization ; autologous breast reconstruction ; free tissue transfer ; indocyanine green angiography ; transit-time flowmetry ; neurofibromatosis ; craniofacial ; surgical treatment ; multidisciplinary team ; plexiform neurofibroma ; forequarter amputation ; targeted muscle reinnervation ; osteomusculocutaneous flap ; fillet flap ; epaulette flap ; interscapulothoracic amputation ; spare parts ; CTA ; DIEP flap ; MS-TRAM flap ; perforator ; personalized medicine ; reconstructive breast surgery ; mastectomy-skin-flap perfusion ; mastectomy-skin-flap necrosis ; suture materials ; crush load ; mechanical properties ; wound closure ; adipose-derived stem cells ; ADSC ; MCF-10A ; mammary epithelial cells ; fibroblasts ; epithelial-mesenchymal transition ; mesenchymal markers ; breast infection ; peri-prosthetic infection ; breast implant infection ; silicone prostheses ; negative pressure wound therapy ; instillation ; n/a ; bic Book Industry Communication::M Medicine ; bic Book Industry Communication::M Medicine::MN Surgery
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-09-11
    Description: This Special Issue contains selected papers from works presented at the 12th EASN (European Aeronautics Science Network) International Conference on Innovation in Aviation & Space for Opening New Horizons, which was held from the 18th until the 21st of October 2022, in Barcelona, with physical participation. About 470 participants contributed to a high-level scientific gathering providing some of the latest research results on the topic, as well as some of the latest relevant technological advancements. Twenty interesting papers, which cover a wide range of topics including characterization, analysis and design, as well as numerical simulation, are contained in this Special Issue.
    Keywords: parachute harness ; opening load ; limit load ; human factors ; air traffic management ; air traffic controllers ; subjective workload assessment ; air traffic control events ; simulation platform ; taskload ; real-time simulations ; air traffic management and airports ; air traffic control ; arrival manager ; controller support system ; severe weather visualization ; nowcasting ; weather research and forecasting ; flame propagation ; nanosecond plasma discharges ; lean burning ; ZDPlaskin ; CHEMKIN ; carbon fibre-reinforced plastics ; energy absorption ; impact ; optimisation ; simulation ; three-point bending test ; optimization ; multi-objective ; multi-point ; Kriging ; metamodel ; surrogate ; intake ; aerodynamics ; CFD ; mesh morphing ; achievement scalarizing function ; FUTPRINT50 ; sustainable aviation ; zero emissions ; hybrid-electric propulsion ; liquid hydrogen ; fuel-cell technology ; electric green taxiing system ; wingtip propulsion ; superconducting materials ; green approaches ; FMS ; AMAN ; CDA ; negotiation process ; on-ground energy supply ; hybrid-electric aircraft ; airport infrastructure ; conceptual design in aerospace ; Advanced Morphological Approach ; structured expert judgment elicitation ; ATFCM Regulations ; machine learning ; air traffic ; historical data ; explainability ; EMA ; prognostics ; PHM ; model-based ; metaheuristic ; MEA ; FDI ; reusable launch vehicle ; thermal protection system ; integrated thermal protection system ; ablative material ; ceramic matrix composite ; phase change material ; lattice structure ; additive manufacturing ; titanium ; powder metallurgy ; aerospace ; dual scale microstructure ; flight control actuators ; iron bird ; actuators ; holistic MCDM tool ; circular aviation ; sustainability ; CFRP recycling ; aviation ; sensitivity analysis ; AHP ; WSM ; data normalization ; aircraft design ; distributed propulsion ; hybrid-electric flight ; critical loss of thrust ; vertical stabilizer ; eVTOL ; multirotor aerial vehicle ; sizing ; hybrid energy storage ; battery ; hydrogen fuel cell ; supercapacitor ; self-healing efficiency ; functionalization reaction ; epoxy resin ; mechanical properties ; 17-4PH stainless steel ; 3D printing ; laser powder bed fusion ; printing orientation ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 77
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-02
    Description: This reprint collects works which stimulate and spread the latest knowledge on energy in construction and building materials, providing the basis for new ideas on various topics for young investigators as well as leading experts in the field of Materials Science and Engineering. The collection features fifteen research papers and one review study. The main research aim covers the topic of thermal energy storage in construction and building components.
    Keywords: energy sustainability ; thermal insulation ; rapeseed ; woodchips ; bio-waste ; thermal transmittance ; un/steady conditions ; VOC emission ; electrical conductive concrete ; multifunctional composite ; conductive filler ; graphene nanoplatelets ; dielectric properties ; electric properties ; glass in building ; insulating glass units ; heat loss in buildings ; climatic loads ; hemp–lime composite ; thermal conductivity ; low-energy buildings ; specific energy absorption ; natural fiber ; thermal-energy storage ; enthalpy method ; apparent calorific capacity method ; recycled brick aggregates ; meso-scale ; PCMs ; paraffin waxes ; Stefan Problem ; coal bottom ash ; unit weight ; compressive strength ; ultrasonic velocity ; thermal-energy storage (TES) ; phase change materials (PCMs) ; latent enthalpy ; melting temperature ; differential scanning calorimetry ; IEA method ; multilayered walls ; building envelopes ; non-linear optimization ; genetic algorithms ; drying and wetting ; hygrothermal performance ; Polyisocyanurate board ; moisture content ; thermal performance ; vapor permeability ; energy efficiency ; cement-lime mortar ; experimental characterization ; climatic conditions ; heat flux ; extruded polystyrene ; pyrolysis ; kinetic model ; thermal degradation ; reaction mechanism ; AHP ; carbon fibres ; conductivity ; geopolymers ; LCA ; sustainability ; thermal storage ; energy saving with materials ; energy storage ; thermal diffusivity ; lime mortar ; iron (III) oxide ; phase change material ; melting ; latent heat thermal energy storage ; Taguchi method ; optimization ; double skin ; environmental profile ; material passport ; kinetic façade ; wooden façade ; paraffin ; fatty acid ; hydrate salts ; butyl stearate ; encapsulation ; n/a ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PH Physics
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  • 78
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-02
    Description: This reprint focuses on forged steels as an interesting material family, both from a scientific and commercial point of view, due to their many applications. Despite their diffusion as a consolidated material, many research fields are actively employing new applications. At the same time, innovations are arising from the manufacturing process of such materials, including the possibility to manufacture them from metal powders suitable for 3D printing. This reprint embraces the interdisciplinary work covering physical metallurgy and processing, reporting the experimental and theoretical progress concerning microstructural evolution during processing, and microstructure–properties relations.
    Keywords: fracture ; cold work tool steel ; AISI D2 ; AISI O1 ; high carbon steel ; advanced high-strength forging steel ; hot-forging ; microstructure ; retained austenite characteristics ; mechanical properties ; applications ; tempering ; impact toughness ; carbides ; heat treatment ; bainite ; steel ; open die forging ; artificial neural network ; fast simulator ; process optimization ; advanced martensitic steel ; hot-stamping ; case hardening ; reverted austenite ; tensile property ; duplex type medium Mn steel ; n/a ; stretch-formability ; stretch-flangeability ; martensite-type medium Mn steel ; retained austenite ; heat-treatment ; isothermal transformation process ; direct quenching ; grain boundary misorientation ; welding residual stresses ; dislocations ; high-strength steels ; forging ; air-cooling ; TRIP-aided bainitic ferrite steel ; thermomechanical processing ; hydrogen embrittlement ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 79
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-02
    Description: Additive manufacturing (AM), as an advanced manufacturing technology, has overturned the traditional concept of subtractive manufacturing. It has revolutionized advanced integrated structural design, high-performance material preparation, and the manufacturing of complex components. AM technology is changing the way products are developed, produced, and commercialized, leading to disruptive changes in the economy and society. AM technology has received extensive attention and research from the research community since its inception, and it is leading manufacturing technology and continues to be used with great effectiveness in the aerospace industry, automotive industry, medical plant applications, and many other fields. However, the development of additive manufacturing still faces demanding technical challenges; for example, due to insufficient process planning and inadequate process control, many defects are often observed in the products of AM processes, reducing production efficiency and deteriorating product quality. To promote AM technology toward high efficiency, high precision, high performance, and low cost in a green and intelligent direction, many advanced design and manufacturing technologies are in urgent need of further breakthroughs, such as numerical and analytical models for structural design, experimental methods, performance prediction, and process optimization.
    Keywords: additive manufacture ; cemented carbide ; functionally graded structure ; adhesive wear ; peridynamic method ; multiple-crack propagation ; SLM additive manufacturing ; defects ; additive manufacturing ; joule thermal ; mathematical model ; process parameters ; micro-droplet ; high-voltage electric field-driven jet ; Taylor cone ; micro-scale wax structure ; laser powder bed fusion (LPBF) ; nano-Si3N4 ; AlSi10Mg ; mechanical properties ; heat treatment ; diamond structure ; compression ; strain rate ; specific energy absorption ; CFA ; generation ; machine learning ; multiple linear regression ; sensitivity analysis ; utilization ; laser cladding ; composite alloy powder ; wear resistance ; corrosion resistance ; continuous carbon fiber reinforced ; resin matrix composites ; fused deposition modeling (FDM) ; formability ; projection stereolithography ; geometric accuracy ; 3D printing ; fused deposition modeling ; tensile strength ; adaptive neuron-fuzzy methods ; artificial neural network ; FeCrAl alloy ; thin-wall cladding ; LPBF ; simulation ; accuracy ; microstructure ; nanomechanical properties ; HVOF spraying ; NiCoCrAlYCe coatings ; indentation work ; strain rate sensitivity ; diamond coating ; tribological performance ; seawater environment ; lubricating film ; ultrafast laser ; selective laser melting ; special material manufacturing ; powder bed fusion ; laser manufacturing ; femtosecond laser ; picosecond laser ; Se doping silicon ; near-infrared ; Polycaprolactone (PCL) ; scaffolds structure ; viscous drag force ; single layer linear grid structure ; 55SiCr steel ; spring steel ; refining slag ; non-metallic inclusions ; high temperature viscosity ; laser powder bed fusion ; aluminum matrix composites ; microstructure evolution ; microhardness ; lattice structures ; BCCZ ; specific sensitivity analysis ; imitative full stress method ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-02
    Description: This reprint focuses on a number of timely and challenging issues in areas that support the design, implementation, and experimental testing of single and multiple autonomous air, land, and marine robots. Special emphasis is placed on the methods and techniques employed for motion planning and control that are rooted in solid theoretical concepts. Applications are also addressed in the area of advanced manipulator control. The reprint affords the reader a well-balanced presentation of a wide spectrum of topics that include, but are not limited to, the generation of optimal collision-free trajectories for heterogeneous vehicles working collaboratively or independently, the rapid adaptation of manipulator trajectories to task perturbations, the automatic collision avoidance for surface vessels, the path following controllers for marine and ground robots, the large-scale swarm counterattack strategies, and the optimal actuator configuration design for over-actuated underwater robots.
    Keywords: rapidly-exploring random trees ; manipulator ; priority determination ; real-time optimization ; path planning ; autonomous vessels ; collision avoidance ; model predictive control ; radial basis function networks ; trajectory optimization ; wheeled mobile robots ; path-following ; nonholonomic constraints ; over-actuated underwater robots ; multi-objective optimization ; underwater robots ; performance indices ; distributed trajectory generation ; Voronoi diagram ; multi-drone applications ; real-time replanning ; optimal trajectory generation ; Bernstein polynomials ; Bézier curves ; optimal control ; quadrotor control ; autonomous surface vehicle control ; cooperative path following ; online path planning ; chemical spill boundary encircling ; local planning ; obstacle avoidance ; manipulation ; task perturbation ; optimization ; control ; UAV ; ASV ; splashproof quadrotor ; vision system ; state machine ; autonomous landing ; marine robotics ; aerial robotics ; path following ; inner-outer loop control ; input-to-output stability ; AUVs ; ASVs ; robust control ; nonlinear control ; uncertain systems ; disturbance estimation ; robot safety ; parameter uncertainty ; swarming ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 81
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This reprint is tightly related to minerals engineering. The solution mining (heap leaching, in situ leaching, etc.) offers an environmentally friendly, low-cost, and efficient method to extract these minerals, especially copper sulfides (chalcopyrite, chalcocite, etc.), sandstone uranium, and sandstone gold deposits. After years of development, solution mining has made great progress, but it has also encountered some technical bottlenecks. To better understand the current status of low-grade minerals and mine wastes recovery, we carefully collected 13 contributions in this Special Issue, which are mainly divided into following three aspects:· Reaction mechanisms of chemical/bio-leaching—includes the leaching kinetics of copper sulfides, assisted leaching (chloride acidic leaching, iodide assisted leaching, etc.), in situ leaching of uranium and salt deposits, etc.· Process detection, characterization, and visualization—includes the detection of reaction products, visualization of fluid flow and mass transfer, pore strucutre characterization of leaching systems (ore-packed beds, etc.), microbial successions of leaching bacteria, etc.· Recovery, recycle, and reuse of mine wastes—includes cleaner leaching, disposal or production methods (dump leaching, etc.), the recovery of mine waste (waste rock, tailings, etc.), assessment of operations problems, etc.
    Keywords: unsaturated packed bed ; liquid holdup ; hysteresis behavior ; stepwise irrigation ; heap leaching ; flow behavior ; process mineralogy ; tailings ; cassiterite ; REE ; mineral liberation ; quantitative mineralogy ; ultrafine tailing ; flocculating sedimentation ; floc microstructure ; fractal dimension ; gray value ; RCF layered composite material (RCF) ; mechanical properties ; acoustic emission (AE) ; energy dissipation ; damage constitutive model ; rock–backfill composite materials (RBCM) ; energy dissipation mechanism ; microcrack evolution ; low-grade ore ; metal recovery ; metallurgical methods ; bioleaching ; environmental pollution ; feasibility ; pollucite ; mineralogical characteristics ; tailing ; froth flotation ; solid-waste filling ; roof-contacted rate ; influencing factors of roof connection ; regulation and improvement of roof-connection measures ; downhole uranium mining ; X-ray phase studies ; particle size characteristics ; uranium leaching ; tube ; stope stability ; subsidence area ; stress distribution ; displacement deformation ; 3Dmine–Rhino3D–FLAC3D coupling ; underground mining ; gem mining waste ; rare-earth elements ; Sri Lankan gems ; tailing management ; uranium ; magnesium slag ; resource utilization ; physicochemical properties ; backfilling mining ; magnesium slag-based cementitious materials ; agglomerated heap ; liquid retention ; solute transport ; fluid flow ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences::TTU Mining technology and engineering
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-20
    Description: This Special Issue is a collection of high-quality reviews and original papers from editorial board members, guest editors, and leading researchers discussing new knowledge or new cutting-edge developments in the field of engineering.
    Keywords: hydrofoil optimization ; NSGA-II ; CFD ; XFOIL ; NACA 63815 ; bezier curve ; ultrasound application ; glass bottles ; fruit juice ; foam drainage ; foaming behavior ; martensitic phase transformation (MPT) ; grain misorientation (GMO) ; surface roughening (Ra) ; grain size (Dg) ; solid oxide fuel cell ; computational fluid dynamics ; sensitivity analysis ; optimization ; sand retention test ; sand control devices ; sand production ; sand replication ; SAGD ; probabilistic risk assessment ; multi-hazards ; nuclear safety ; dry-cured ham ; food-grade chemical ; coating ; mechanical performance characteristics ; chemical treatment ; ham nets ; pest management ; mechanical test ; mesh fabric ; artificial magnetic conductor (AMC) ; specific absorption rate (SAR) ; coplanar waveguide (CPW) antenna ; magneto-dielectric (MD) ; mobile phones ; wireless communications ; optical multi-band systems ; physical layer modeling ; fiber-optic communications ; commercially available components ; planar transformer ; eco-design ; environmental impact evaluation ; product efficiency ; DC-DC converter ; dual active bridge (DAB) ; life cycle optimization ; fuel optimization ; low cost HEV ; optimum hybridization ; bubble nucleation ; gas-liquid systems ; supersaturation ; step-down pressure ; Fick’s second law diffusion ; characteristic time ; Q factor ; damping model ; transitional flow regime ; viscous flow regime ; MEMS oscillator ; bending modes ; zirconium phosphate ; titanium phosphate ; nanolayered phosphates ; nanofibrous titanium phosphate ; chemical synthesis ; crystal structure ; technological applications ; drug delivery ; biomedical applications ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues
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  • 83
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-04-05
    Description: This reprint includes research papers on different disciplines related to composites. It contains research related to new topics such as nanotubes, fibres, admixtures added in cement and concrete. Additionally self-healing and self-sensing issues are presented. Environmental, and thermal-related topics are also discussed. Studies related to consolidation topics and alkali activation of clays are included. This blend of traditional and modern building materials, all having a common ground, the use of new technologies for improving fresh and harden state properties, make this volume interesting.
    Keywords: single wall carbon nanotubes ; surfactant ; TritonX-100 ; mass of specimens ; compressive strength ; flexural Strength ; bulk density ; ternary cements ; limestone ; siliceous fly ash ; granulated blast furnace slag ; concrete properties ; concrete durability ; CO2 emission ; detached decorative plasters ; injection grout ; glass microspheres ; reduced density ; stability ; strength ; durability ; clay mortars ; activating solutions ; wetting–drying ; freeze–thaw cycles ; microstructure ; superabsorbent polymer ; steel fibers ; high-performance fiber reinforced concrete ; digital image correlation ; autogenous shrinkage ; tensile behavior ; nano-calcium oxide ; nano-silica ; self-healing ; cement pastes ; curing regime ; gypsum binder ; additives ; light-materials ; porosity ; thermal insulation ; cement ; hydrated lime ; HEMC ; mortar ; paste ; hydration ; setting process ; ultrasonic technique ; graphite ; electrical conductivity ; self-sensing ; multi-walled carbon nanotubes ; cement-based materials ; flexural strength ; electrical resistivity ; activation energy ; supplementary cementitious materials ; packing density ; filler effect ; high calcium fly ash ; ladle furnace slag ; limestone filler ; foamed geopolymer ; reinforcing lightweight concrete ; glass fiber composites ; concrete ; thermal properties ; structural properties ; composite modified asphalt binder ; rheological properties ; storage stability ; amorphous poly alpha olefin ; polyphosphoric acid ; application properties ; water retention ; plaster ; cellulose ether ; viscosity ; self-compacting concrete (SCC) ; mix proportion design ; optimization ; experimental verification ; the grey relational analysis ; hook-end steel fiber ; bond performance ; pullout test ; inclination angle ; fiber spacing ; pullout load-slip curve ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 84
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: In recent decades, metals have been considered promising materials in the fields of regenerative medicine and tissue engineering. Metallic bio-materials with excellent mechanical strength can effectively support and replace damaged tissue. Hence, metals have been widely used in load-bearing applications for dentistry and orthopedics. Cobalt-, iron-, and titanium (Ti)-based alloys are representative bio-metals, which are used in various forms, such as vascular stents, hip joints, dental, and orthopedic implants. However, the alloying elements of Co- and Fe-based alloys, Co, Ni, and Cr, induce severe toxicity when ionized in the body, which limits their clinical use. However, Ti and its alloys have been widely used as medical devices and implants, with dental and orthopedic applications due to their excellent bone-regeneration ability, mechanical properties, and corrosion resistance. Even though Ti and its alloys have generally been used for biomedical applications, there are still challenges that must be met to satisfy their clinical application. For example, osseointegration with the surrounding bone tissue at the initial stage of implantation has been pointed to as a major issue. This Special Issue, “Titanium and Its Alloys for Biomedical Applications”, has been proposed to present recent developments in biomedical applications. The nine research articles included in this Special Issue cover broad aspects of Ti-based alloys and composites with respect to their composition, mechanical, and biological properties, as highlighted in this editorial.
    Keywords: metal–matrix composites ; titanium alloy design ; microstructures ; mechanical properties ; biocomposites ; powder metallurgy ; high power impulse magnetron sputtering ; zinc oxide ; tantalum oxide ; thin film ; plasma electrolytic oxidation ; antibacterial ; biocompatibility ; ultraprecision magnetic abrasive finishing (UPMAF) ; environmentally friendly oil ; Ni-Ti stent wire ; surface roughness (Ra) ; removed diameter (RD) ; Ti alloys ; martensitic transformation ; recoverable strain ; synchrotron X-ray diffraction ; Ti6Al4V ; centrifugal casting ; ion implantation ; human osteoblast ; grade V titanium ; mini transitional implants ; narrow diameter implant ; backscattered electrons ; Ti-based biomaterials ; toxicity ; β-phase ; ω-phase ; CALPHAD ; artificial intelligence ; deep learning artificial neural network (DLANN) ; self-organizing maps (SOM) ; titanium ; surface treatment ; HA blasting ; sandblasted and acid-etched (SLA) ; anodic oxidation (AO) ; micro-arc oxidation (MAO) ; graphene oxide ; electrophoretic deposition ; implant ; biomolecule ; complex ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-11-30
    Description: Polyphenols are natural phytochemicals recognized as one of the largest and most widespread classes of plant constituents occurring throughout the plant kingdom. Over the years, polyphenols have attracted the attention of the scientific community due to their potential health-promoting effects. Owing to their several interesting properties, polyphenols have aroused considerable interest, shedding light on their chemistry, reactivity, biological properties and their beneficial effects on both plants and humans. As a result of these investigations, a huge number of research works have been reported on polyphenols. However, despite the voluminous literature studying polyphenols and their impact on human health, there are still many issues waiting to be explored in order to explain and elucidate the positive effects of polyphenols on human health. This Special Issue was intended to gather up-to-date knowledge related to the cutting-edge research in the broad scientific area of polyphenols, providing an opportunity to show the latest advances in the exploration of polyphenols and their health beneficial effects. The special issue was a great success with more than 50 published manuscripts covering various aspects related to polyphenols and their role in human health. We are confident that this Special Issue will be of great interest to the scientific community, and will contribute to the improvement of knowledge regarding the area of polyphenols, leading to a better understanding of their role in human health.
    Keywords: polyphenolic curcumin ; cisplatin ; combination therapy ; breast cancer ; apoptosis ; gemini surfactant nanoparticles ; Mucuna pruriens seed ; neuroprotective activity ; Parkinson’s disease ; anti-acetylcholinesterase activity ; L-dopa ; Mitrephora sirikitiae ; anti-inflammation ; lignans ; polyphenols ; mRNA expression ; cytokines ; gemini curcumin ; colorectal cancer ; RNA sequencing ; PPI network ; differentially expressed genes ; Ericaceae ; LC–DAD/ESI–MS ; phenolic compounds ; flavonoids ; antioxidant activity ; Artemia salina Leach ; resveratrol ; hexavalent chromium ; 8-hydroxydeoxyguanosine adduct repair ; endogenous antioxidant system ; antigenotoxic ; Opuntia sp. ; prickly pear ; inflammation ; ginseng leaf ; far-infrared irradiation ; ginsenosides ; antioxidants ; health benefits ; polysaccharides ; freeze-drying ; spray-drying ; antidiabetic ; Averrhoa carambola L. ; dihydrochalcone ; flavone glycosides ; obesity ; Oxalidaceae ; type 2 diabetes ; Alchemilla viridiflora Rothm. ; SARS-CoV-2 ; COVID-19 ; spike glycoprotein ; neuropilin-1 ; in vitro ; in silico ; Origanum compactum ; HPLC-PDA-ESI/MS ; antibacterial activity ; bioactive compounds ; nutraceuticals ; phenols ; pomegranate peels ; phytochemical ; wistin ; NADES ; total polyphenolic content ; enzyme inhibition ; functional food ; natural medicine ; Alzheimer cholinesterase inhibitors ; Maqui ; platelets ; phenolic compounds and cardiovascular ; phenolic acids ; sinapic acid ; ACE inhibition ; hypertension ; endothelial dysfunction ; Graminex pollen ; hydroalcoholic extract ; oxidative stress ; gene expression ; TRPV1 ; pterostilbene ; antioxidant ; bioavailability ; cancer ; diabetes ; Nrf2 ; Rosmarinus officinalis ; chemical analysis ; glioblastoma ; rhabdomyosarcoma ; red onion ; phytochemicals ; H9c2 rat cardiomyoblast ; primary human fibroblasts ; blood disorder ; haemoglobin ; natural product ; nutraceutical ; nutritional disease ; lichens ; neuroprotection ; cetrarioid clade ; grape polyphenols ; sarcopenia ; skeletal muscle ; clinical trial ; R. conduplicans ; lichen ; secondary metabolites ; DNA damage ; α-glucosidase inhibition ; adlay ; adlay testa ; antiglycation ; phenolic acid ; grape pomace ; anti-inflammatory ; curcumin ; poly(glycerol sebacate) ; nanoparticles ; drug delivery system ; human cervical cancer ; baicalein ; mangiferin ; quercetin ; diabetes mellitus ; peripheral artery disease ; cardiovascular diseases ; Cyperus esculentus ; tiger nut ; metabolomics ; UHPLC-ESI-QTOF-MS/MS ; foodomics ; scopolamine ; memory impairments ; phenol compounds ; polydatin ; 3-O-β-d-resveratrol-glucopyranoside ; cervical cancer ; lung cancer ; ovarian cancer ; nanosuspension ; antioxidant properties ; LPS-induced inflammation ; NO-scavenging activity ; mountain tea ; Lamiaceae ; iridoids ; phenylethanoids ; ultrasound-assisted extraction ; melittoside ; ajugoside ; verbascoside ; ferulic acid ; apoptosis and cell cycle arrest ; anti-angiogenesis ; anti-metastasis ; synergism ; Cymbopogon schoenanthus ; hyaluronidase ; acetylcholinesterase ; neurodegeneration ; skin ; hair ; human health ; immobilized PTP1B ; drug screening ; cell surface display ; salvianolic acid B ; traditional Chinese medicine ; Salicornia ; extraction technologies ; agro-industrial by-products ; biological activity ; circular economy ; health effects ; re-integration ; waste management ; blood orange peels ; infrared-assisted extraction ; optimization ; Aflatoxin B1 ; Achillea millefolium ; bioaccessibility ; Caco-2 absorption ; in vitro digestion ; sterol regulatory element-binding protein 1 ; human oral squamous cell carcinoma ; autophagy ; epidermal fatty acid-binding protein ; lentil hull ; enzymatic hydrolysis ; microwave-assisted extraction ; oligosaccharides ; Alocasia gigantea ; hepatocellular carcinoma ; histopathology ; UHPLC–DAD–ESI–MS/MS ; Salvianolic acid B ; matrix metalloproteinase 9 ; gelatinase B ; MDA-MB-231 human breast cancer cells ; TIMP-1 ; agri-food wastes ; sustainability ; polyphenols bioavailability ; polyphenols activity ; cosmeceuticals ; nano-delivery ; health ; Lithocarpus litseifolius ; trilobatin ; phloridzin ; phloretin ; metabolic pathway ; bioactivity ; honey ; functional beverage ; characterization ; alcoholic beverage ; fermented beverage ; functional foods ; beneficial effects ; biological treatment ; bioreactors ; water ; aerobic granular sludge ; conventional active ted sludge ; biofilter ; photobioreactor ; membrane bioreactor ; bio-electrochemical systems ; chitosan ; Indian borage ; biotic elicitor ; insect-based foods ; Folin–Ciocalteu method ; phenols and flavonoids ; polyphenols bioactivity ; cereal ; pre-harvest sprouting ; antiradical capacity ; antitumor activity ; bee products ; phenylamides ; multivariate statistical analysis ; Juniperus sabina ; cupressuflavone ; intranasal ; pharmacokinetic ; motor coordination ; oregano ; box–behnken ; phenolics ; HPLC-PDA analysis ; UPLC-Q-TOF MS ; olive pomace ; PBMC ; immune gene expression ; HPLC-DAD ; metabolome ; phenolic bioaccessibility ; propolis ; total phenolic compounds ; antioxidant capacity ; UHPLC-DAD-ESI-MS ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PS Biology, life sciences
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  • 86
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-06-23
    Description: Advanced manufacturing technology and systems cover a broad scope involving manufacturing processes, machine tool design, system optimization, smart and flexible manufacturing, theoretical study and metrology. This reprint comprises 19 original papers concerning recent advances in the research and development of AMTSs. Specifically, there are many research fields that are covered: machining processes (six papers), micro-/nano-precision fabrication (four papers), and system optimization (eight papers), in addition to one review.
    Keywords: pipeline corrosion ; BP neural network ; uncertainty ; corrosion growth model ; optical fiber sensor ; gold-plated fiber Bragg grating ; pressure ; temperature sensing ; optical properties ; sheet resistance ; transparent conductive thin film ; annealing temperature ; ZnO/Metal/ZnO ; KDP crystals ; water-dissolution polishing ; wetting characteristics ; surface quality ; additive manufacturing ; process parameters ; fused deposition modeling ; mechanical properties ; fiber-optic sensors ; temperature ; refractive index ; multi-parameter sensing ; Michelson interferometer ; fiber optic sensor ; Mach–Zehnder interferometer ; optical fiber waist-enlarged bitaper ; the refractive index sensitivity ; corrosion ; laser-assisted grinding ; grinding force ; material removal mechanism ; microcracks ; complementary metal-oxide semiconductor ; MEMS ; tactile sensor ; stiction effect ; temporary handling ; stiction contact ; Au–Si eutectic ; flip-chip ; chemical enhanced shear dilatancy ; tungsten ; polishing ; air-coupled acoustic transducer ; matching layer ; acoustic impedance ; bonding layer ; side ohmic contact ; transmission line model ; specific contact resistance ; annealing temperatures ; milling stability ; composite Cotes-based method ; Simpson’s 3/8-based method ; Floquet theory ; medical β titanium alloy ; ultrasonic elliptical vibration cutting ; composite cutting process ; ECM ; gas–liquid two-phase turbulence model ; miniature bearing outer ring ; machining accuracy ; central composite design ; 4H-SiC wafer ; amorphous silica ; ReaxFF reactive molecular dynamics ; plastic removal ; chemical reaction ; atomic layer deposition (ALD) ; linewidth regulation ; micro- and nano-metrology ; one-dimensional nano-grating standard ; vision ; defect inspection ; YOLO ; FPGA ; attention ; femtosecond laser polishing ; SiC ceramics ; laser ablation ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 87
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-03-07
    Description: Analytical chemistry is bound to face growing challenges in the future, especially for the quantification of trace analytes in complex matrices. Although the development of increasingly sensitive and specific instrumental techniques has achieved remarkable results, sample preparation is still a fundamental step, often limiting the whole workflow. In the context spawned by the recent international environmental policies that are responsive to the rapport of human activities with the surrounding environment, chemistry cannot hesitate to give its contribution. Almost pioneeringly, in analytical chemistry, we have been talking for some time about “green analytical chemistry”, its guiding principles, and the development of eco-friendly analytical approaches. However, the new and still open challenge is advance not only in eco-compatibility but mainly in eco-sustainability, rooting the future of analytical chemistry in new perspective aimed at minimizing the environmental impact of the analytical process by placing environmental cost as a priority aim on par with analytical performance. This is the reprint of a Special Issue that includes contributions focused on the progress in analytical chemistry based on the arguments previously raised and discussed, with a particular reference to eco-compatibility and eco-sustainability. The contributions include the development of low environmental impact methods and/or techniques or their applications.
    Keywords: dyes ; fatty acids ; microextraction ; magnetic ionic liquid ; sample preparation ; dispersive liquid–liquid microextraction ; single drop microextraction ; GC ; HPLC ; ionic liquids ; denitrogenation ; extraction ; pyridine ; quinoline ; aniline ; simulated oil ; adsorption ; gum Arabic ; magnetite ; nano-composite ; lead(II) ; mercury removal ; magnetic ; manganese ; cobalt ; iron ; spinel ; crosslinker ; phenolic acids ; vinylimidazole ; anion exchanger ; co-polymer ; solid-phase extraction ; sustainable analytical sample preparation ; indoor air quality ; fragrances ; indoor pollution ; endocrine disruptors ; analytical method ; GC-MS ; musks fragrances ; emerging contaminants ; α-isomethylionone ; halloysite nanotubes ; organosilyl-sulfonated halloysite nanotubes ; solid phase extraction ; pyrrolizidine alkaloids ; honey ; chlorzoxazone ; greener HPTLC ; paracetamol ; simultaneous detection ; validation ; AGREE ; traditional HPTLC ; vitamin D3 ; pulsed electric field ; bioactive compounds ; optimization ; mushrooms ; Agaricus bisporus ; phenyboronic-acid-functionalized ; Fe3O4 magnetic nanoparticles ; ortho-dihydroxy-containing compounds ; n/a
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  • 88
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-04-05
    Description: Several factors influence consumers’ choices of food products. While price remains the main criterion, quality, pleasure, convenience, and health are also important driving factors in food market evolution. Food enterprises are making significant efforts to manufacture products that meet consumers’ demands without compromising on safety standards. Additionally, the food industry also aims to improve the efficiency of transformation and conservation processes by minimizing energy consumption, process duration, and waste generation. However, foods are highly complex systems in which: (i) Non-linear dynamics and interactions among different temporal and spatial scales must be considered; (ii) A wide range of physical phenomena occur; (iii) Different food matrices, with different microstructures and properties are involved; and (iv) The number of quality and safety indicators (such as bacteria, total volatile basic nitrogen, color, texture, odor, and sensory characteristics) is substantial. Mathematical modeling and simulation are key elements that allow us to gain a deeper understanding of food processes and enable the use of tools such as optimization and real-time control to improve their efficiency. This Special Issue gathers research on the development of dynamic mathematical models that describe the relevant factors in food processes, and model-based tools to improve such processes. The contributions published in this Special Issue can be grouped into two categories: the evolution of safety and quality indicators in unprocessed food systems, and transformation and preservation processes.
    Keywords: food safety ; predictive microbiology ; mathematical models ; microbial inactivation ; sublethal injury ; bioprocess engineering ; fermentation process ; batch bioreactors ; dynamical non-linear mathematical model ; model identification ; particle swarm optimization ; simulation ; Carnobacterium maltaromaticum ; modeling ; microbial growth ; optimization ; fermentation ; temperature-dependent thermal properties ; scaled sensitivity coefficient ; TPCell ; parameter estimation ; inverse problems ; food microstructure ; electronic nose ; Shewanella putrefaciens ; dynamic growth ; spoilage prediction ; GC-MS ; acrylamide formation ; thermal resistance ; dynamic models ; FSSP ; DoE ; smoke ; fish ; wine fermentation ; nitrogen ; mathematical modeling ; population model ; maintenance ; variable yield ; underutilized wild species ; lycopene ; viscosity ; thermal processing ; color ; mathematical modelling ; fish quality ; fish freshness ; bibliometric analysis ; stress variables ; quality degradation ; beer fermentation ; food industry ; multi-objective optimization ; model-based optimization ; equivalent solutions ; uncertainty ; Monte Carlo ; frying operation ; acrylamide ; quality ; n/a ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBX History of engineering & technology
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  • 89
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-01-05
    Description: Manufacturers of soft polymer products, as well as suppliers and processors of polymers, raw materials, and compounds or blends are compelled to use predictive and advanced laboratory testing in their search for high-performance soft polymer materials for future applications. The collection of 12 publications contained in this edition therefore presents different methods used to solve problems in the characterization of various phenomena in soft polymer materials, asks relevant questions and offers appropriate solutions.
    Keywords: ultraviolet radiation ; thermoplastic elastomer ; high vinyl S-B-S ; photoinitiator ; mechanical properties ; rubber ; curing ; bismaleimide ; tensile strength ; Diels–Alder reaction ; effective electrical resistance ; elastomer sensors ; natural rubber ; local strain ; conductive filler ; digital image correlation ; strain sweep ; rheometer ; rubber process analyzer ; swelling ; absorption ; infrared spectroscopy ; mass spectrometry ; gas chromatography ; mechanical behavior ; synthetic aviation fuels ; 3D printed elastomers ; elastomer ; fast characterization ; energy stored and released ; heat source reconstruction ; intrinsic dissipation ; infrared thermography ; engine mount ; elastomer characterisation ; experimental testing ; resonance frequency ; dynamic stiffness ; parameter identification ; electrodynamic shaker ; test bench ; cogging torque ; synchronous machine ; carbon black ; tensile ; Mullins effect ; Payne effect ; dynamic strain ; hysteresis ; material testing ; rheology ; Poisson’s ratio ; viscoelasticity ; plasticizer ; polarity ; carbon black network ; simultaneous mechanical and dielectric analysis ; mechanical stability ; glass transition ; kinetics ; resin ; BDS ; FDSC ; nanocomposites ; carbon nanotubes ; atomic force microscopy ; dynamical mechanical analysis ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science::PH Physics
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  • 90
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This Special Issue comprises 17 research articles and 2 review articles, covering studies on both individual and composite polymer modifications. Topics include high-content polymer-modified bitumen, epoxy resin adhesives, SBS-modified bitumen, PE-modified bitumen, crumb-rubber-modified bitumen, and biopolymeric capsules and bitumen rejuvenators.
    Keywords: high-content polymer modified asphalt ; SBS ; viscoelastic behavior ; phase structure ; neat and polymer-modified bitumens ; low temperatures ; creep compliance ; relaxation modulus ; relaxation time spectrum ; glass transition temperature ; road engineering ; reclaimed asphalt binder ; rheological properties ; SHRP test ; variance analysis ; salt storage pavement ; salt storage asphalt mastic ; high elastic polymer ; waste polyethylene ; spectroscopic analysis ; morphological analysis ; XRD ; creep analysis ; SEM ; asphalt pavements ; modified asphalt ; functional polymer ; cis-1, 4-polyisoprene ; polyethylene ; molecular dynamics ; microscopic mechanism ; nano-OvPOSS ; compatibility ; structure ; mechanical properties ; hot recycled asphalt mixture ; RAP ; degree of blending (DOB) ; low-temperature performance ; fatigue lifetime ; prediction model ; asphalt binder ; moisture damage ; dynamic pore water pressure ; rheological behaviors ; damage mechanism ; recycled engine oil bottom ; SBS modifier ; the modification-rejuvenation mechanism ; self-healing ; rejuvenators ; alginate ; encapsulation ; factorial design ; post hoc analyses ; rubberized asphalt ; adhesion characteristics ; binder bond strength (BBS) ; surface free energy (SFE) ; atomic force microscope (AFM) ; calcium alginate capsules ; asphalt concrete ; selfhealing level ; low service temperature ; asphalt ; natural fibers ; synthetic fibers ; waste fibers ; dense asphalt mix ; stone mastic asphalt ; porous asphalt mix ; biodegradability ; VOCs ; crumb rubber ; bitumen ; organic montmorillonite ; inhibition ; performance-based ; asphalt mix design ; performance-related specification ; viscoelastic continuum damage model ; viscoplastic shift model ; asphalt pavement ; microwave heating ; pavement de-icing ; pavement materials ; epoxy resin ; toughening agent ; response surface method ; gray relational analysis ; film thickness ; HCPMA ; optimal film thickness ; aging durability ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TR Transport technology and trades
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  • 91
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-09
    Description: Among the strategies for reducing the negative effects on the environment effected by the uncontrolled consumption and low potential for the recovery of conventional plastics, the synthesis of new biodegradable and recyclable plastics represents one of the most promising methods for minimizing the negative effects of conventional non-biodegradable plastics. The spectrum of existing biodegradable materials is still very narrow; thus, to achieve greater applicability, research is being carried out on biodegradable polymer mixtures, the synthesis of new polymers, and the incorporation of new stabilizers for thermal degradation, alongside the use of other additives such as antibacterials or new and more sustainable plasticizers. Some studies analyze direct applications, such as shape memory foams, new cartilage implants, drug release, etc.The reader can find several studies on the degradation of biodegradable polymers under composting conditions; however, novel bacteria that degrade polymers considered non-biodegradable in other, unusual conditions (such as conditions of high salinity) are also presented.
    Keywords: rice husk waste ; polybutylenes adipate-Co-terephthalate (PBAT) ; polybutylene succinate (PBS) ; eosinophilic esophagitis (EoE), esophageal drug delivery systems ; drug-eluting string ; 3D printing ; photopolymerizable resins ; Drug loading strategies ; steroids ; fluticasone ; bamboo fiber ; cellulose nanofiber ; adhesion ; multiscale hybridization ; fibrous composite ; oil palm empty fruit bunch (OPEFB) ; microcrystalline cellulose ; nano-bentonite ; bio-composites ; tensile properties ; modified PU film ; protein adsorption ; antibacterial ; hyaluronic acid (HA) ; polyhexamethylene guanidine (PHMG) ; liposomes ; dexketoprofen ; biocompatibility ; hot plate test ; rats ; polyethylene glycol ; polylactic acid ; starch mixture ; hydrolytic degradation ; biodegradation ; almond shell ; starch thermoplastic polymer ; biodegradable ; biocomposite ; recycling ; reprocessing cycle ; injection molding ; natural filler ; PLA ; epoxidized chia seed oil (ECO) ; plasticizers ; migration ; disintegration ; poly(butylene adipate-co-terephthalate ; PBAT ; gum rosin ; biodegradable polymers ; barrier properties ; biomaterials ; bioplastics ; mechanical performance ; barrier performance ; processability ; TMDCs-WS2 ; PLLA ; PVDF ; nanomaterials ; morphology ; crystallization ; dynamic-mechanical properties ; photodegradation ; biodegradable polymer ; poly(butylene succinate-co-adipate) ; Zn-Ti LDH ; PHBV ; rheological characterization ; plastics processing ; Flory–Huggins ; free energy of mixing ; glass transition temperature ; group contribution ; molecular weight ; miscibility prediction ; simulation ; solubility parameter ; biodegradable packaging ; biopolymer ; starch ; storage conditions ; thermal properties ; physicochemical properties ; maleinized hemp seed oil ; maleinized Brazil nut seed oil ; bio-plasticizers ; absorbency ; commercial biopolymer additive (CBA) ; micro/nanofibrillated cellulose (CMF) ; softness ; strength ; tissue paper materials ; antioxidant ; antioxidant polymers ; lignin polymers ; graft polymers ; dopamine ; polydopamine ; inulin ; quercetin ; limonene ; vitamins ; polycaprolactone (PCL) ; polyesters ; hydrophobic-hydrophilic balance (HHB) ; nanoparticle formulation ; nanoparticle crystallinity ; FLAP antagonist ; BRP-187 ; polylactide ; biofoam ; hydrolysis ; degradation ; drug ; controlled release ; polysaccharide ; probiotics ; biosensor ; laser-induced graphene ; polyimide ; glucose ; enzyme ; mesenchymal stem cells ; polymers ; matrix ; stiffness ; osteoblasts ; differentiation ; cartilage defect ; knee ; Kartigen® ; chondrocyte precursors ; stem cell therapy ; silica ; composites ; thermal stability ; toughness ; biodegradability ; 3D printing applications ; non-viral vectors ; gold nanoparticles ; mesoporous silica nanoparticles ; carbon nanotubes ; nanoparticle size distribution ; cellulose nanocrystals ; negative staining ; cryo-TEM ADF-STEM ; electron tomography ; coffee-ring effect ; fractionation ; vinyl addition polymerization ; ring-opening polymerization (ROP) ; bromolactide ; methylenelactide ; poly(methylenelactide) ; poly(methylenelactide-g-L-lactide) ; 3D scaffolds ; biomaterial engineering ; tissue engineering ; polymeric foams ; surface functionalization ; protein nanoparticles ; cell growth ; compressed fluids ; Freon R134a ; polystyrene ; comparison ; gut microbes ; insect larvae ; MXene ; composite membrane ; hydrophilicity ; antibacterial properties ; coagulation ; hydroxyapatite ; WS2 nanotubes ; mechanical properties ; PA ; bioblend ; kinetic models ; reaction mechanisms ; random scission ; shape memory polymers ; polyurethanes ; oxidation ; biostable ; foams ; additive manufacturing ; surface roughness ; FFF ; ANFIS ; modeling ; desirability ; filaments ; antimicrobial ; fused filament fabrication (FFF) ; fused deposition modelling (FDM) ; Poly(lactic acid) (PLA) ; starch-based bioplastic ; chitosan ; co-polymer ; reinforcement ; biosynthesized polyesters ; polyhydroxyalkanoates ; seawater ; residual toxicity assessment ; thermochromic printing inks ; UV stability ; polycaprolactone ; nanoparticles ; TiO2 ; ZnO ; poly (lactic acid) ; Kraft lignin ; tannin ; multifunctionality of PLA composites ; surface mechanical properties ; antioxidant/antibacterial activity ; poly-β-hydroxybutyrate ; plasticizer ; imagery analysis ; Actinomucor elegans ; materials testing ; resin based dental materials ; monomer ; bisphenol A ; elution ; leaching ; adipate ; effective plasticizer ; environmentally friendly ; esterification ; polyvinyl chloride ; technological ; sustainability ; levoglucosenone ; oxa-Michael addition ; cross-linkable polymers ; renewable polyesters ; biosurfactants ; thermostability ; emulsion stability ; rheology ; PHA extraction ; chemical digestion ; design of experiments ; polymer properties ; micro-pollutants ; landfill ; soil biota ; polyethylene ; polyester ; FucoPol ; response surface methodology ; oil-in-water emulsions ; texture ; poly(lactic acid) ; biocomposites ; mineral filler ; calcium sulfate ; natural gypsum ; anhydrite II ; melt–mixing ; thermal and mechanical properties ; Vicat softening temperature ; injection molding and extrusion ; technical applications ; keratin ; feather ; poultry waste ; nonwovens ; electrocardiography ; electromyography ; PEDOT:PSS ; degradability ; polymer electrode ; phytopathogenic fungi ; polysaccharides ; plant protection ; antifungal coatings ; seed coating ; seed treatments ; field applications ; pre-harvest treatments ; post-harvest treatments ; edible coatings ; Poly(L–lactic acid) ; Poly(D–lactic acid) ; stereocomplex ; magnesium hydroxide ; biodegradable vascular scaffold ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This is a reprint of articles from the Special Issue published online in the open access journal Gels (ISSN 2310-2861). This reprint focuses on the modification of hydrogels and their applications in biomedical engineering, aiming to provide a reference for scholars in related fields. It mainly involves the applications of hydrogels in biomedical fields such as phantoms, wound healing, skin, cartilage, muscle, and drug loading. We believe this reprint can provide a valuable reference for scientific and technological workers in the fields of materials science, tissue engineering, biological manufacturing, biomedical engineering, and so on.
    Keywords: dynamic mechanical analysis ; hardness ; hydrogels ; materials ; mimicking ; soft tissues ; tissue scaffolding ; viscoelasticity ; Warner–Braztler shear test ; hydrogel beads ; Taguchi’s method ; Grey relational analysis ; drug delivery system ; semi-IPN ; hydrogel ; drug delivery ; wound healing ; adipose mesenchymal stromal cells ; chondrogenic differentiation ; RGD motif ; hydrogel characterization ; cartilage regeneration ; horseradish peroxidase ; myoblast ; skeletal muscle ; tissue engineering ; gelatin ; PNIPAM ; smart polymer ; biomaterial ; ceramic ; freeze-drying ; polymer ; tissue ; fibroblast growth factor-2 ; growth factor ; hyaluronic acid-collagen hybrid hydrogel ; platelet-derived growth factor-BB ; pulp regeneration ; phytosomes ; tobacco leaf ; polyurethane-62 ; reactive oxygen species ; shape memory gel ; hydrogel sheet dressings ; poly(vinyl alcohol) ; silver nanoparticles ; electron beam irradiation ; antibacterial ; conductivity ; self-healing properties ; mechanical properties ; biocompatibility ; hydrogel electronic skin ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials::TGM Materials science
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  • 93
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-28
    Description: This reprint contains 12 high-quality original research and reviews papers by 62 authors from 10 countries on 3 continents: Asia (China, India, Indonesia, and Malaysia), Europe (Austria, Czech Republic, Portugal, Romania, and Ukraine), and Africa (South Africa). These papers were published in a Special Issue, “Recent Developments in Eco-Friendly Wood-Based Composites II”, of the journal Polymers. These papers provide examples of the most recent developments in eco-friendly wood-based composites.
    Keywords: tree bark fibre ; thermal insulation panels ; thermal conductivity ; self-bonded boards ; zero formaldehyde content ; eco-friendly wood-based composites ; wood polymer composites ; bio composites ; wall cladding ; ceiling materials ; RDP housing ; lignosulphonates ; lignin ; formaldehyde ; wood adhesives ; plastic film-bonded plywood ; polyethylene film ; physical–mechanical properties ; bonding strength ; wood species ; thermoplastic resin ; formaldehyde-free adhesive ; hot-pressing technique ; wood-based panels ; wood composites ; biodegradable polymers ; wood flour ; characterization ; processing ; applications ; biocomposite ; mechanical properties ; physical properties ; polypropylene ; thermal properties ; nanocellulose aerogels ; modification techniques ; environmental wastes ; oil absorption ; composite panel ; biomass ; oil palm trunk (OPT) ; particleboards ; deadwood ; wood particles ; formaldehyde emission ; urea-formaldehyde adhesive ; bending strength ; internal bond strength ; modulus of elasticity ; thickness swelling ; bamboo ; thermal modification ; bamboo cell wall ; anti-mildew property ; wood–plastic plywood ; hot-press ; secondary press ; aldehyde-free ; n/a ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general ; thema EDItEUR::P Mathematics and Science::PS Biology, life sciences ; thema EDItEUR::K Economics, Finance, Business and Management::KN Industry and industrial studies::KNA Agribusiness and primary industries::KNAL Forestry industry
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  • 94
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-02-02
    Description: Micro/Nano Structures and Systems: Analysis, Design, Manufacturing, and Reliability is a comprehensive guide that explores the various aspects of micro- and nanostructures and systems. From analysis and design to manufacturing and reliability, this reprint provides a thorough understanding of the latest methods and techniques used in the field. With an emphasis on modern computational and analytical methods and their integration with experimental techniques, this reprint is an invaluable resource for researchers and engineers working in the field of micro- and nanosystems, including micromachines, additive manufacturing at the microscale, micro/nano-electromechanical systems, and more. Written by leading experts in the field, this reprint offers a complete understanding of the physical and mechanical behavior of micro- and nanostructures, making it an essential reference for professionals in this field.
    Keywords: deployable structure ; compliant mechanism ; bistable mechanism ; programmable behaviour ; 5G ; mmWave ; SIW ; hybrid feeding ; SIC ; wide bandwidth ; ECC ; stable high gain ; isolation ; MEG ; DIG ; SAR ; SSL ; metamaterials (MMTs) ; DRAs ; Fano resonance ; SPPs ; U-shaped ring resonator ; sensor ; metal-insulator-metal ; micropump ; magnetorheological ; MRE ; magneto-solid-fluid interaction ; additive manufacturing ; microscale ; design ; materials ; processes ; applications ; atomic layer deposition ; sacrificial templates ; 3D nanostructures ; EDM ; SiCp/Al ; recast layer ; residual stress ; solidification ; deep-narrow groove ; GH4169 alloy ; electrochemical milling ; wedged end face ; micro automotive electronic pump ; computational fluid dynamics ; numerical simulation ; experimental techniques ; cavitation ; thermodynamic effects ; InP ; SiC ; flip-chip bonding ; millimeter wave ; heterogeneous integration ; linear guide ; decoupling mechanism ; finite element analysis ; micro-milling ; wear ; tool failure ; coating ; substrate ; delamination ; Fresnel zone plate ; annular structure ; femtosecond laser machining ; concentric double-ring beams ; MEMs ; burn-in ; quality ; reliability ; warranty ; maintenance ; optimization ; degradation ; material properties ; test structures ; stress gradients ; thin-film material properties ; micro- and nano-systems (MNS) fabrication and manufacturing ; microstructures ; nanostructures ; mechanics ; analysis ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues
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  • 95
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: Studies on the corrosion and degradation of materials play a decisive role in the novel design and development of corrosion-resistant materials, the selection of materials used in harsh environments in designed lifespans, the invention of corrosion control methods and procedures (e.g., coatings, inhibitors), and the safety assessment and prediction of materials (i.e., modelling). These studies cover a wide range of research fields, including the calculation of thermodynamics, the characterization of microstructures, the investigation of mechanical and corrosion properties, the creation of corrosion coatings or inhibitors, and the establishment of corrosion modelling. This Special Issue is devoted to these types of studies, which facilitate the understanding of the corrosion fundamentals of materials in service, the development of corrosion coatings or methods, improving their durability, and eventually decreasing corrosion loss.
    Keywords: AC-HVAF ; FeB ; HEAs ; coating ; corrosion ; liquid zinc ; cuprous oxide nanochains ; thermal decomposition ; nanofluids ; photo-thermal conversion performance ; molecular dynamics ; binding energy ; crystallization prevention ; flocking for resisting blockage ; drainage pipe ; mechanochemical activation ; coal-gasification slag ; particle characteristics ; cementitious material ; reactivity ; traffic engineering ; damage identification ; deflection influence line ; continuous beam bridge ; multi-span bridges ; structural damage ; anti-blocking of flocking drainage pipe ; drainage pipe blockage by crystals ; mechanism ; mathematical modeling ; tunnel ; soft rock ; strain hardening/softening ; bearing capacity of footing ; numerical solution ; effect of intermediate principal stress ; CoCrFeNiSiMoW ; medium-entropy alloy coatings ; microstructure ; wear ; salt freezing ; erosion ; freeze thaw cycle ; concrete ; durability ; numerical simulation ; high-nitrogen austenitic stainless steel ; friction coefficient ; high temperature ; loess calcareous nodules ; heavy-metal ions ; single adsorption ; adsorption rate ; grey quality gain-loss ; engineering specifications ; process capability ; crystallization and clogging in pipe ; flow velocity ; pipe diameter ; pipe material ; friction stir welding ; aluminum and steel dissimilar metals butt ; high rotational speed ; ultra-high rotational speed ; intermetallic compound ; magnesium alloy ; composite coating ; structural characterization ; mechanical properties ; bioactivity ; antibacterial activity ; biocompatibility ; Feixianguan Formation ; underdetermined system ; curve reconstruction ; circulating neural network ; old well review ; weathered sand ; freeze–thaw cycles ; damage law ; microscopic characteristics ; deterioration mechanism ; flange shaft ; fatigue failure ; fracture mechanics ; stress intensity factor ; crack propagation ; bridge structure ; mode ; frequency ; displacement curve ; Z3CN20.09M ; corrosion fatigue ; fatigue life ; high temperature water ; SnO2-Sb2Ox ; sol-enhanced electrodeposition ; organic degradation ; micro-arc oxidation (MAO) ; SiO2 nanoparticles ; corrosion resistance ; wear property ; magnesium–lithium alloy ; localized corrosion ; corrosion product film ; annular channel angular extrusion ; predeformation ; 2A12 aluminum alloy ; heat treatment ; uniform mechanical properties ; Q345 steel ; hot-dipping aluminum-silicon ; annealing ; FeAl phase ; Al2O3 ; dissimilar metal cladding ; pressure vessel pipe–nozzle ; micro-hardness ; sweet cherry ; edible coating ; quality ; antioxidant enzymatic activities ; stainless steel ; titanium ; crevice corrosion ; multiphysics ; ring narrow groove ; mask electrochemical machining ; numerical simulation of the multiple physical fields ; diffusion barrier ; Cu interconnect ; self-formed ; Cu(Re) alloy ; subgrade engineering ; coarse-grained soil ; step cyclic loading ; dynamic triaxial test ; hysteresis curve ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TD Industrial chemistry and manufacturing technologies::TDC Industrial chemistry and chemical engineering
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2023-01-05
    Description: The Special Issue Modeling and Simulation in Engineering, belonging to the section Engineering Mathematics of the Journal Mathematics, publishes original research papers dealing with advanced simulation and modeling techniques. The present book, “Modeling and Simulation in Engineering I, 2022”, contains 14 papers accepted after peer review by recognized specialists in the field. The papers address different topics occurring in engineering, such as ferrofluid transport in magnetic fields, non-fractal signal analysis, fractional derivatives, applications of swarm algorithms and evolutionary algorithms (genetic algorithms), inverse methods for inverse problems, numerical analysis of heat and mass transfer, numerical solutions for fractional differential equations, Kriging modelling, theory of the modelling methodology, and artificial neural networks for fault diagnosis in electric circuits. It is hoped that the papers selected for this issue will attract a significant audience in the scientific community and will further stimulate research involving modelling and simulation in mathematical physics and in engineering.
    Keywords: category theory ; mathematical modelling ; abstraction ; formal approaches ; functors ; surrogate model ; Kriging ; high-dimensional problems ; principal component dimension reduction ; trochoidal milling ; variable feed ; spiral groove ; CAM ; Levy walks ; anomalous diffusion ; fractional material derivative ; combustion process ; local estimate ; Monte Carlo method ; modeling ; analog circuits ; fault diagnosis ; neural networks ; carbon nanotubes ; heat transfer ; nanofluid ; rotating ; stretching/shrinking ; adjoint ; gradient-descent ; junctions ; transport equation ; unsteady flow ; rotation ; hybrid nanofluid ; stretching sheet ; radiation ; inverse modeling ; calcium leaching ; grout curtain ; hydraulic conductivity ; optimization ; fuzzy model ; response surface methodology ; diesel engine performance ; biodiesel ; anomalous diffusion equation ; continuous time random walk ; roughness scaling extraction ; fractal dimension ; accelerated algorithm ; Weierstrass–Mandelbrot function ; milling vibration signal ; spot volatility ; change of frequency ; roughness of volatility ; hurst exponent ; Chinese A-share market ; ferrofluidslip effect ; Stefan blowing ; thermodiffusion ; n/a ; bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general ; bic Book Industry Communication::P Mathematics & science
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-28
    Description: This reprint is focused on analyzing modern trends and recent advances in the synthesis of new metal-based composite materials. Such composites are increasingly used in civil, automotive, and aerospace engineering, shipbuilding, robotics, nuclear power, portable energy devices, biomedicine, electronic devices, and portable aircraft. Non-ferrous metals are often used as the matrix of composites, aluminum, magnesium, nickel, titanium, and their alloys can act as modifiers with boron, carbon structures, borides, carbides, nitrides, and oxides of refractory metals and high-strength steel. For high-temperature composites, tungsten or molybdenum fibers are used. Despite the large number of scientific works, new methods for the synthesis of such composites in order to improve and optimize their structure and properties are still needed. In this regard, completed works of experimental and theoretical orientation, aimed at the development and optimization of methods for the synthesis of composite materials, as well as the search for new materials, were welcomed for inclusion in this reprint.
    Keywords: composite ; molecular dynamics ; magnesium ; aluminum ; mechanical properties ; Al composite ; Fe40Al intermetallic ; mechanical milling ; damage ; elastic modulus ; microindentation ; metal matrix composite ; high temperatures ; 7075 alloy ; lithium-ion battery ; silicon ; halide melt ; electrodeposition ; silicon fibers ; nanotubes ; nanoneedles ; composite anode ; tungsten ; rhenium ; dealloying ; anodic polarization ; developed surface ; catalyst for HER ; joining of CFRT/metal ; hybrid technology ; pin geometry ; continuous fiber reinforced thermoplastics ; electric field ; perovskite ; polaron ; proton ; metal-matrix composite ; nano-alumina ; molten salt synthesis ; zinc ; aluminum and magnesium coating ; HC340LAD + ZM ; spot welding ; corrosion ; GaN/AlN ; molecular beam epitaxy ; CVD graphene ; buffer layer ; gallium nitride ; GaN-on-Si technology ; nanoparticles ; TiO2 ; oxygen vacancies ; nuclear reactions ; deuterium probes ; silicon carbide ; electrodeposited silicon ; composite material ; anode material ; Coulombic efficiency ; high temperature ; simulation ; rheology ; neural network ; relaxation ; rheological behavior ; flow stress ; Al-Mg alloy ; Al-Mg-Sc-Zr alloy ; n/a ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general ; thema EDItEUR::P Mathematics and Science::PH Physics
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This reprint, entitled “Process Control and Smart Manufacturing for Industry 4.0”, contains the extended papers from the Series of annual IFSA conferences on Automation, Robotics and Communications for Industry 4.0/5.0 (ARCI) on the following topics: Process Automation, Process Control and Monitoring, Design Principles in Industry 4.0, Smart Manufacturing and Technologies, Smart Factories, Machine Learning and Artificial Intelligence in Manufacturing. The reprint contains 13 chapters written by 54 ARCI conference participants from seven countries: China, Croatia, Denmark, Germany, Italy, Poland and Romania. This reprint will inform readers of cutting-edge developments in the field and provide effective starting points and a road map for further research and development. All chapters follow the same structure: firstly, an introduction to the specific topic under study; secondly, a description of the field, including sensing or/and measuring applications. Each chapter ends with a curated list of references, including books, journals, conference proceedings and websites. “Process Control and Smart Manufacturing for Industry 4.0” is intended for researchers and scientists from academia and industry, as well as for postgraduate students.
    Keywords: steel alloys ; resistance spot welding ; RSW ; electrode wear ; electrode tip-dressing ; process monitoring ; mushrooming ; plateau forming ; quality control ; COVID-19 ; FDM ; 3D printing ; injection molding ; personal protection ; rapid prototyping ; protective face shields ; mechatronics line ; visual servoing system ; wheeled mobile robot ; industrial robotic manipulator ; Industry 4.0 ; NDT ; magnetic particle inspection ; optimization ; condition monitoring ; vibration ; acoustic emission ; drive train ; data fusion ; machine learning ; product morphology ; core data model ; phase rule filter ; phase private data model ; storage system ; forklift AGV ; deep learning ; semantic segmentation ; H-Swish ; community transformation ; community innovation governance ; ternary space ; coupling and coordination analysis ; lean manufacturing ; lean principles ; pull principle ; production control mechanisms ; production processes ; lean implementation ; batch process ; partial least squares ; multi-phase ; multi-mode ; master production scheduling ; make-to-order ; mathematical programming ; agent-based ; overtime ; earliness ; tardiness ; equipment selection decision ; business compass ; energy consumption ; processing time ; beetle antennae search algorithm ; sustainable blank dimension design ; energy-saving ; low-carbon ; grey wolf algorithm ; gas–solid ; cyclone ; separator ; gas dynamics ; erosion ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
    Language: English
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-04-11
    Description: This Special Issue collected original contributions, both research papers and reviews, showing recent results and/or positive advances in the behavior of new sustainable bio-materials under applied mechanical stress, both in static and dynamic mode, and evaluating the characteristics of resistance, moduli and/or viscoelasticity, in view of potential applications, such as tissue engineering, medical devices, surgical or dental implants, manufacturing of human parts, agriculture, packaging, textiles, electronics, automotive and aerospace, green buildings, and architecture and construction.
    Keywords: biodegradable polymers ; mechanical properties ; rheology ; processing ; moisture content ; characterisation ; particleboard ; natural fiber composites ; Rhizophora spp. ; biodegradable ; thermomechanical properties ; thermal properties ; dicumyl peroxide ; Joncryl ; wood-polymer composites (WPC) ; recycled thermoplastics ; torque measurements ; rheological properties ; dynamic mechanical analyses ; hot-pressing ; paper web ; fibre ; lignin ; diffusion ; activation energy ; wood flour ; wood pellets ; wood–plastic composites ; transportation costs ; physical properties ; interfacial bond strength ; wood-polymer composites ; wood-polymer interface ; XPS ; PLA/starch ; compatibilizer ; vegetable oil-based additive ; masterbatch ; epoxidized natural rubber ; halloysite nanotubes ; urea ; tensile properties ; wide-angle X-ray scattering ; jute fabrics ; 3D printing ; eco-friendly composites ; gellan gum ; virgin coconut oil ; hydrogels ; biomaterials ; wound dressing ; polylactic acid ; chitosan ; organosolv lignin ; modifying agent ; biocomposites ; nanocomposites ; durability ; biodegradation ; environmental ageing ; creep ; modelling ; crazing ; polyaniline ; fruit waste ; vegetable waste ; waste valorization ; bioactive compound ; active packaging ; by-product ; extraction ; thermal processing ; non-thermal processing ; sugar palm fiber ; poly(lactic acid) ; alkaline treatment ; benzoyl chloride treatment ; hybrid composites ; biodegradable thermoplastic ; coating ; Amdry 6420 ; Metco 143 ; Metco 136F ; hardness ; adhesion ; structure ; Pandanus amaryllifolius fibre ; natural fibres ; composite ; biodegradable plastics ; polyhydroxybutyrate ; polymer composites ; compounding ; injection molding ; MOR ; MOE ; IB ; panel ; nanocomposite ; acrylic denture teeth ; nano ZrO2 particles ; wear behavior ; microstructure ; microhardness ; polymerization ; polymethyl methacrylate resin ; textiles ; sustainability ; biopolymers ; carboxymethyl cellulose ; drying effects ; coating layers ; fiber-based material ; hydrothermal-mechanical pretreatment ; agricultural wastes ; energy efficiency ; waste generation ; single fiber test ; Weibull distribution ; gauge length ; environmental degradation ; UV aging ; moisture ; tissue engineered vascular grafts ; biomechanical stimulation ; rice bran ; ultrasound cavitation ; resistant starch microstructure ; crystallinity ; hydration properties ; mechanical performance ; physical treatment ; chemical treatment ; biological treatment ; κ-carrageenan–gelatin hydrogel ; supramolecular structure ; n/a ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
    Language: English
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  • 100
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    MDPI - Multidisciplinary Digital Publishing Institute
    Publication Date: 2024-03-30
    Description: This Special Issue, "Mathematical and Molecular Topology" welcomed papers from a broad interdisciplinary area, since topology is concerned with the properties of objects that are preserved under continuous deformations, such as stretching, twisting, crumpling and bending. One of the oldest problems in topology is The Seven Bridges of Königsberg. Topology naturally finds application in all fields of engineering, physical sciences, life sciences, social sciences, medicine, business and even arts. The motivating insight behind topology is that some geometric problems depend not on the exact shape of the objects involved, but rather on the way they are put together. Circa 1750, Euler stated the polyhedron formula, V − E + F = 2 (where V, E, and F respectively indicate the number of vertices, edges, and faces of the polyhedron), which may be regarded as the first theorem, signaling the birth of topology. Subjects included in topology are graph theory and algebraic topology.
    Keywords: closure space ; canonically closed ; weakly normal ; almost normal ; π-normal ; weakly π-normal ; κ-normal ; local convergence ; nonlinear equations ; Banach space ; Fréchet-derivative ; Gaussian ; optimization ; geometry ; molecular modeling ; amino acids ; maximum clique ; protein graphs ; machine learning ; ProBiS ; entropies via various molecular descriptors ; H3BO3 layer structure ; subdivision of H3BO3 ; line graph of H3BO3 ; thema EDItEUR::K Economics, Finance, Business and Management::KN Industry and industrial studies::KNT Media, entertainment, information and communication industries::KNTX Information technology industries ; thema EDItEUR::U Computing and Information Technology::UY Computer science
    Language: English
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