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  • Basel, Beijing, Wuhan : MDPI  (64)
  • Englisch  (64)
  • Vietnamesisch
  • 2025-2025
  • 2015-2019  (64)
  • 1940-1944
  • 1
    Schlagwort(e): Underwater ; Photogrammetry ; Bathymetry ; ROV ; 3D modelling ; Multi-media ; Marine biology
    Beschreibung / Inhaltsverzeichnis: Water covers approximately 71% of the planet’s surface and human activities have been relying on it since remote times. Many traces of these exist under the “zero level” and will continue to exist in the future. Measuring, positioning, and mapping objects under water have experienced very significant modifications, brought about by advances in technology and also by changed requirements, demands for new products, introduction of new tools, and the modification of existing equipment. The exploration, documentation, and recording of underwater environments remains a difficult task, and is sometimes still unsolved. The research, design, and development of techniques and procedures for correctly validating underwater environments are more than ever important. This Special Issue originates from the ISPRS/CIPA Workshop "UNDERWATER 3D RECORDING & MODELING—Experiences in Data Acquisition, Calibration, Orientation, Modelling & Accuracy Assessment” (http://3dom.fbk.eu/files/underwater/index.html).
    Seiten: Online-Ressource (XX, 368 Seiten)
    Ausgabe: Printed Edition of the Special Issue Published in Sensors
    ISBN: 9783038422235
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Unbekannt
    Basel, Beijing, Wuhan : MDPI
    Schlagwort(e): biodiversity ; biogeochemistry ; biogeography ; biotechnology ; evolutionary biology ; genetics, genomics and proteomics ; microbiology ; molecular biology ; molecular ecology ; physiology and metabolism
    Beschreibung / Inhaltsverzeichnis: Polar microbiology is a promising field of research that can tell us much about the fundamental features of life. The microorganisms that inhabit Arctic and Antarctic environments are important not only because of the unique species they represent, but also because of their diverse and unusual physiological and biochemical properties. Furthermore, microorganisms living in Polar Regions provide useful models for general questions in ecology and evolutionary biology given the reduced complexity of their ecosystems, the relative absence of confounding effects associated with higher plants or animals, and the severe biological constraints imposed by the polar environment. In terms of applied science, the unique cold-adapted enzymes and other molecules of polar microorganisms provide numerous opportunities for biotechnological development. Another compelling reason to study polar microbial ecosystems is the fact that they are likely to be among the ecosystems most strongly affected by global change. For these reasons, polar microbiology is a thriving branch of science with the potential to provide new insights into a wide range of basic and applied issues in biological science. In this context, it is timely to review and highlight the progress so far and discuss exciting future perspectives. In this special issue, some of the leaders in the field describe their work, ideas and findings.
    Seiten: Online-Ressource (XIII, 449 Seiten)
    Ausgabe: Printed Edition of the Special Issue Published in Biology
    ISBN: 9783038421764
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Unbekannt
    Basel, Beijing, Wuhan : MDPI
    Schlagwort(e): multi-color laser ; Fourier synthesis ; ultrashort optical pulse ; four-wave mixing ; high-order sideband generation ; ultrafast phenomena ; data communication
    Beschreibung / Inhaltsverzeichnis: The pulse width of an electromagnetic wave is determined by the frequency band width of the wave used. Therefore, one femtosecond is the ultimate in pulse width for an “optical” wave. For this reason, several methods have been proposed for the generation of an ultrashort optical pulse. For example, resonance/non-resonance four-wave mixing would be one of the candidates for generating multi-color laser emission in an extremely wide spectral region, thus breaking the 1-fs barrier. To date, numerous emission lines have been generated from the deep-ultraviolet to the near-infrared region (〈45,000 cm−1). Such generations use a variety of techniques, such as four-wave Raman mixing in molecular hydrogen. This type of technique is promising for the generation of 1-fs optical pulses via phase locking and the Fourier synthesis of the emission lines. For verification, it would be necessary to develop a new method for measuring the pulse width, since the spectral band width approaches or is beyond one octave. Ultrashort optical pulses can be utilized in a variety of applications in science and technology. For example, an ultrashort optical pulse can be used in the studies of ultrafast phenomena. More practically, a laser pulse shorter than 100 fs is reported to be useful in mass spectrometry for observing a molecular ion of triacetone triperoxide, an explosive used in terrorist attacks. A train of ultrashort optical pulses in the terahertz region, which has been generated in the optical cavity to enhance the nonlinear optical effect, would be employed as a clock pulse in optical computation/communication in future advanced industries.
    Seiten: Online-Ressource (XXII, 192 Seiten)
    Ausgabe: Printed Edition of the Special Issue Published in Applied Sciences
    ISBN: 9783038422839
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Unbekannt
    Basel, Beijing, Wuhan : MDPI
    Schlagwort(e): biodiversity ; community forest management ; landscape approaches ; biodiversity conservation
    Beschreibung / Inhaltsverzeichnis: The “landscape Approach” is widely promoted as a way to reconcile biodiversity conservation with both commercial agriculture and local peoples’ demands for land. Landscape approaches imply a strong role for local communities in decision making and, therefore, local citizen science plays a role in determining landscape outcomes (Sayer et al., under review). Many claims and counter claims are made about the success and failure of local management in achieving good forest outcomes. There is significant uncertainty about the incentives for local people to manage forests for their global carbon storage and biodiversity values. Local people may be more concerned about immediate economic returns and less about the long term global environmental values of their forests. This Special Issue seeks to assemble papers that provide empirical evidence for the success of landscape and community managed initiatives to conserve biodiversity. We are seeking papers that report upon successful biodiversity conservation projects that have operated at a landscape scale and those that have been led by local communities. We are also interested in cases where these approaches were attempted but were less successful. Our ultimate goals is to identify the conditions under which these approaches have succeeded and those where they have been less successful.
    Seiten: Online-Ressource (VII, 159 Seiten)
    Ausgabe: Printed Edition of the Special Issue Published in Land
    ISBN: 9783038424550
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Unbekannt
    Basel, Beijing, Wuhan : MDPI
    Schlagwort(e): chitosan ; alginate ; agar ; carrageenans ; exopolysaccharides ; chemical modification ; drug delivery ; gene delivery
    Beschreibung / Inhaltsverzeichnis: Biopolymers, as natural polysaccharides, are considered benign polymers for what concerns the environment. This is not a new invention, but at best a renaissance: the first type of polymers used by human kind were animal hides, cellulose, silk, wool. Among benefits of natural occurring biopolymers there are potential biocompatibility, renewable resources, low processing costs, tailoring of structure by genetic manipulation, and, as said, environmentally compatibility. Limits are, sometimes, premature degradation and high production costs due to the very high purity required for medical uses. Polysaccharides are not drugs by themselves, but their use in pharmaceutical field, for example as drug carriers or antimicrobial, anti-inflammatory or anticoagulant agents, is increasingly promising. Marine polysaccharides include chitin, chitosan, alginate, agar and carrageenans. Chitosan is a cationic carbohydrate biopolymer derived from chitin, the second most abundant polysaccharides present in nature after cellulose. The main sources of chitin are the shell wastes of shrimps, lobsters and crabs. For its characteristics, chitosan founds particular application as non viral vector in gene delivery. Films from chitosan are very tough and long lasting. Alginates derive from seaweed extraction (pheophyceae), and are mainly used in drug delivery and as hydrogels for immobilizing cells and enzymes, due to the mild conditions of cross-linking through bivalent cations (Ca2+). Agar (or agar-agar) and carrageenans are linear polysaccharides from red seaweeds. They are highly reactive chemically and are peculiar for thermoreversible gel formation. Exopolysaccharides (EPS), substantial components of the extracellular matrix of many cells of marine origin, also have to be mentioned for their potential interest in pharmaceuticals, and new EPS producing bacteria, particularly from extreme marine environments, are being isolated. The possibility of chemical modification, blending and addition of biodegradable additives allows to tailor the final properties of polysaccharides and opens the doors to wider applications, particularly in pharmaceutical area. This issue is intended to explore any new potentiality of marine polysaccharides, as those above mentioned, deriving from chemical or chemical-physical modifications, and the scaling-up of their pharmaceutical applications.
    Seiten: Online-Ressource (VIII, 224 Seiten)
    Ausgabe: Printed Edition of the Special Issue Published in Marine Drugs
    ISBN: 9783038428985
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Unbekannt
    Basel, Beijing, Wuhan : MDPI
    Schlagwort(e): chitosan ; alginate ; agar ; carrageenans ; exopolysaccharides ; chemical modification ; drug delivery ; gene delivery
    Beschreibung / Inhaltsverzeichnis: Biopolymers, as natural polysaccharides, are considered benign polymers for what concerns the environment. This is not a new invention, but at best a renaissance: the first type of polymers used by human kind were animal hides, cellulose, silk, wool. Among benefits of natural occurring biopolymers there are potential biocompatibility, renewable resources, low processing costs, tailoring of structure by genetic manipulation, and, as said, environmentally compatibility. Limits are, sometimes, premature degradation and high production costs due to the very high purity required for medical uses. Polysaccharides are not drugs by themselves, but their use in pharmaceutical field, for example as drug carriers or antimicrobial, anti-inflammatory or anticoagulant agents, is increasingly promising. Marine polysaccharides include chitin, chitosan, alginate, agar and carrageenans. Chitosan is a cationic carbohydrate biopolymer derived from chitin, the second most abundant polysaccharides present in nature after cellulose. The main sources of chitin are the shell wastes of shrimps, lobsters and crabs. For its characteristics, chitosan founds particular application as non viral vector in gene delivery. Films from chitosan are very tough and long lasting. Alginates derive from seaweed extraction (pheophyceae), and are mainly used in drug delivery and as hydrogels for immobilizing cells and enzymes, due to the mild conditions of cross-linking through bivalent cations (Ca2 ). Agar (or agar-agar) and carrageenans are linear polysaccharides from red seaweeds. They are highly reactive chemically and are peculiar for thermoreversible gel formation. Exopolysaccharides (EPS), substantial components of the extracellular matrix of many cells of marine origin, also have to be mentioned for their potential interest in pharmaceuticals, and new EPS producing bacteria, particularly from extreme marine environments, are being isolated.The possibility of chemical modification, blending and addition of biodegradable additives allows to tailor the final properties of polysaccharides and opens the doors to wider applications, particularly in pharmaceutical area. This issue is intended to explore any new potentiality of marine polysaccharides, as those above mentioned, deriving from chemical or chemical-physical modifications, and the scaling-up of their pharmaceutical applications.
    Seiten: Online-Ressource (X, 290 Seiten)
    Ausgabe: Printed Edition of the Special Issue Published in Marine Drugs
    ISBN: 9783038429005
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Unbekannt
    Basel, Beijing, Wuhan : MDPI
    Schlagwort(e): chitosan ; alginate ; agar ; carrageenans ; exopolysaccharides ; chemical modification ; drug delivery ; gene delivery
    Beschreibung / Inhaltsverzeichnis: Biopolymers, as natural polysaccharides, are considered benign polymers for what concerns the environment. This is not a new invention, but at best a renaissance: the first type of polymers used by human kind were animal hides, cellulose, silk, wool. Among benefits of natural occurring biopolymers there are potential biocompatibility, renewable resources, low processing costs, tailoring of structure by genetic manipulation, and, as said, environmentally compatibility. Limits are, sometimes, premature degradation and high production costs due to the very high purity required for medical uses. Polysaccharides are not drugs by themselves, but their use in pharmaceutical field, for example as drug carriers or antimicrobial, anti-inflammatory or anticoagulant agents, is increasingly promising. Marine polysaccharides include chitin, chitosan, alginate, agar and carrageenans. Chitosan is a cationic carbohydrate biopolymer derived from chitin, the second most abundant polysaccharides present in nature after cellulose. The main sources of chitin are the shell wastes of shrimps, lobsters and crabs. For its characteristics, chitosan founds particular application as non viral vector in gene delivery. Films from chitosan are very tough and long lasting. Alginates derive from seaweed extraction (pheophyceae), and are mainly used in drug delivery and as hydrogels for immobilizing cells and enzymes, due to the mild conditions of cross-linking through bivalent cations (Ca2 ). Agar (or agar-agar) and carrageenans are linear polysaccharides from red seaweeds. They are highly reactive chemically and are peculiar for thermoreversible gel formation. Exopolysaccharides (EPS), substantial components of the extracellular matrix of many cells of marine origin, also have to be mentioned for their potential interest in pharmaceuticals, and new EPS producing bacteria, particularly from extreme marine environments, are being isolated.The possibility of chemical modification, blending and addition of biodegradable additives allows to tailor the final properties of polysaccharides and opens the doors to wider applications, particularly in pharmaceutical area. This issue is intended to explore any new potentiality of marine polysaccharides, as those above mentioned, deriving from chemical or chemical-physical modifications, and the scaling-up of their pharmaceutical applications.
    Seiten: Online-Ressource (X, 564 Seiten)
    Ausgabe: Printed Edition of the Special Issue Published in Marine Drugs
    ISBN: 9783038429029
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Schlagwort(e): Impact ; Impact force modeling ; viscoelastic materials ; pounding ; vibration suppression ; energy dissipation ; damping ; tuned mass damper (TMD) ; pounding tuned mass damper (PTMD) ; active mass damper (AMD) ; impact damper ; frication damper ; particle damper ; tuned liquid damper ; tuned liquid column damper ; active vibration control ; passive vibration control ; vibration control devices ; vibration damper
    Beschreibung / Inhaltsverzeichnis: The study of vibrations and the control of vibrations has been a fundamental cornerstone of engineering. Problems related to vibrations are ubiquitous, from the study of fatigue of airplane wings in turbulent flow to the suppression of vibrations in subsea structures. The breadth of vibration engineering is matched by the depth of field. Numerous methods have been used to understand vibrations, and a wide range of devices have been developed to control vibrations. Many vibration control problems can be considered as a problem of energy dissipation and vibration damping. The problem encompasses multiple interdependent aspects of research and engineering, including the development of models, implementation of algorithms, and design of devices based on data. Discoveries made in one aspect can lead to breakthroughs in other aspects. Thus, the scope and aims of this Special Issue are to receive and accumulate new knowledge about vibration control, especially for topics related to energy dissipation methods for vibration damping. Desired topics include but are not limited to vibration modeling, algorithms for active vibration control, passive damping methods, vibration damping devices, new materials for energy dissipation, etc.
    Seiten: Online-Ressource (VIII, 254 Seiten) , Illustrationen, Diagramme, Karten
    Ausgabe: Printed Edition of the Special Issue Published in Applied Sciences
    ISBN: 9783038427865
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Unbekannt
    Basel, Beijing, Wuhan : MDPI
    Schlagwort(e): biomass ; biomass heating ; biomass refrigeration ; biomass electricity ; renewable energy ; global Warming ; CO2 abatement
    Beschreibung / Inhaltsverzeichnis: There is ample evidence that the push for biomass as an alternative source of renewable energy to replace fossil fuels for heating and power generation is much greater than expected. There is a huge gap between the present contribution and the committed part of renewables for the majority of world countries. The uptake of renewables in general, and biomass in particular, is still considered somewhat risky due to the lack of best practice examples to demonstrate how efficient the technology is today.
    Seiten: Online-Ressource (X, 254 Seiten) , Illustrationen, Diagramme, Karten
    Ausgabe: Printed Edition of the Special Issue Published in Energies
    ISBN: 9783038429111
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Unbekannt
    Basel, Beijing, Wuhan : MDPI
    Schlagwort(e): Climate change impact ; Watershed management ; Modeling, Calibration/Uncertainty ; Water balance ; Conservation practices ; Water quality ; Large-scale modeling
    Beschreibung / Inhaltsverzeichnis: A Guideline for Successful Calibration and Uncertainty Analysis for Soil and Water Assessment: A Review of Papers from the 2016 International SWAT Conference / Water 2018, 10(1), 6; doi:10.3390/w10010006 --- Assessing the Water-Resources Potential of Istanbul by Using a Soil and Water Assessment Tool (SWAT) Hydrological Model / Water 2017, 9(10), 814; doi:10.3390/w9100814 --- Simulating Climate Change Induced Thermal Stress in Coldwater Fish Habitat Using SWAT Model / Water 2017, 9(10), 732; doi:10.3390/w9100732 --- Assessing the Uncertainty of Multiple Input Datasets in the Prediction of Water Resource Components / Water 2017, 9(9), 709; doi:10.3390/w9090709 --- Assessment of the Combined Effects of Threshold Selection and Parameter Estimation of Generalized Pareto Distribution with Applications to Flood Frequency Analysis / Water 2017, 9(9), 692; doi:10.3390/w9090692 --- Assessing Thermally Stressful Events in a Rhode Island Coldwater Fish Habitat Using the SWAT Model / Water 2017, 9(9), 667; doi:10.3390/w9090667 --- Assessment of Nitrogen Inputs into Hunt River by Onsite Wastewater Treatment Systems via SWAT Simulation / Water 2017, 9(8), 610; doi:10.3390/w9080610 --- Water Resources of the Black Sea Catchment under Future Climate and Landuse Change Projections / Water 2017, 9(8), 598; doi:10.3390/w9080598 --- Comparison of SWAT and GWLF Model Simulation Performance in Humid South and Semi-Arid North of China / Water 2017, 9(8), 567; doi:10.3390/w9080567 --- Modeling the Fate and Transport of Malathion in the Pagsanjan-Lumban Basin, Philippines / Water 2017, 9(7), 451; doi:10.3390/w9070451 --- Development of a Station Based Climate Database for SWAT and APEX Assessments in the US / Water 2017, 9(6), 437; doi:10.3390/w9060437 --- Using Modeling Tools to Better Understand Permafrost Hydrology / Water 2017, 9(6), 418; doi:10.3390/w9060418 --- Sensitivity of Calibrated Parameters and Water Resource Estimates on Different Objective Functions and Optimization Algorithms / Water 2017, 9(6), 384; doi:10.3390/w9060384 --- Evaluating Various Low-Impact Development Scenarios for Optimal Design Criteria Development / Water 2017, 9(4), 270; doi:10.3390/w9040270 --- Assessment of Flood Frequency Alteration by Dam Construction via SWAT Simulation / Water 2017, 9(4), 264; doi:10.3390/w9040264 --- Effects of Urban Non-Point Source Pollution from Baoding City on Baiyangdian Lake, China / Water 2017, 9(4), 249; doi:10.3390/w9040249 --- Multilevel Drought Hazard Assessment under Climate Change Scenarios in Semi-Arid Regions—A Case Study of the Karkheh River Basin in Iran / Water 2017, 9(4), 241; doi:10.3390/w9040241 --- Assessment of Three Long-Term Gridded Climate Products for Hydro-Climatic Simulations in Tropical River Basins / Water 2017, 9(3), 229; doi:10.3390/w9030229 --- Evaluating the Impact of Low Impact Development (LID) Practices on Water Quantity and Quality under Different Development Designs Using SWAT / Water 2017, 9(3), 193; doi:10.3390/w9030193 --- Influence Mechanisms of Rainfall and Terrain Characteristics on Total Nitrogen Losses from Regosol / Water 2017, 9(3), 167; doi:10.3390/w9030167 --- Modeling Crop Water Productivity Using a Coupled SWAT–MODSIM Model / Water 2017, 9(3), 157; doi:10.3390/w9030157 --- Effect of Climate Change on Hydrology, Sediment and Nutrient Losses in Two Lowland Catchments in Poland / Water 2017, 9(3), 156; doi:10.3390/w9030156 --- Using SWAT and Fuzzy TOPSIS to Assess the Impact of Climate Change in the Headwaters of the Segura River Basin (SE Spain) / Water 2017, 9(2), 149; doi:10.3390/w9020149 --- Water Leakage and Nitrate Leaching Characteristics in the Winter Wheat–Summer Maize Rotation System in the North China Plain under Different Irrigation and Fertilization Management Practices / Water 2017, 9(2), 141; doi:10.3390/w9020141 --- Climate Change Impacts on US Water Quality Using Two Models: HAWQS and US Basins / Water 2017, 9(2), 118; doi:10.3390/w9020118 --- Testing the SWAT Model with Gridded Weather Data of Different Spatial Resolutions / Water 2017, 9(1), 54; doi:10.3390/w9010054 --- The Impact of Para Rubber Expansion on Streamflow and Other Water Balance Components of the Nam Loei River Basin, Thailand / Water 2017, 9(1), 1; doi:10.3390/w9010001 --- The Mitigation Potential of Buffer Strips for Reservoir Sediment Yields: The Itumbiara Hydroelectric Power Plant in Brazil / Water 2016, 8(11), 489; doi:10.3390/w8110489
    Seiten: Online-Ressource (X, 490 Seiten)
    Ausgabe: Printed Edition of the Special Issue Published in Water
    ISBN: 9783038428169
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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