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  • 1
    Online Resource
    Online Resource
    Smart and Green Solutions for Civil Infrastructures Incorporating Geological and Geotechnical Aspects : Proceedings of the 6th GeoChina International Conference on Civil & Transportation Infrastructures: From Engineering to Smart & Green Life Cycle Solutions -- Nanchang, China, 2021 (2021)
    Cham :Springer International Publishing :
    Details
    Keywords: Engineering geology. ; Civil engineering. ; Geotechnical engineering. ; Buildings Design and construction. ; Geoengineering. ; Civil Engineering. ; Geotechnical Engineering and Applied Earth Sciences. ; Building Construction and Design.
    Description / Table of Contents: Chapter 1. Effect of Microscopic Properties on the Mechanical Behavior of Gravelly Soil by Using DEM -- Chapter 2. Research on Large Deformation Control Measures of Surrounding Rock in Jointed and Altered Granite Stratum of High Ground Stress Tunnel -- Chapter 3. Multi-channel Singular Spectrum Analysis of Geocenter Motion and Precise Prediction of Earth's Motion -- Chapter 4. Monitoring of the Turag River Dyke in Dhaka City Using Ground Penetrating Radar (GPR): A New Approach of Flood Risk Reduction in Bangladesh -- Chapter 5. Relationships between Compressive and Splitting Tensile Strengths of Cast and Core High-Strength Concrete Cylinders -- Chapter 6. Predicting the Small Strain Stiffness of a Calcareous Sand Considering Sample Preparation Method and Stress Path -- Chapter 7. Explicit Integration and Implementation of State-dependent Constitutive Model for Rockfill Materials -- Chapter 8. Expander Bodies Provide Increased Axial Resistance to Full Drilled Displacement Piles for World Trade Center Towers in Bolivia -- Chapter 9. Utilization and Regulations of Innovative Technology to Improve Road Safety via Drivers’ Warnings and Enforcement.
    Abstract: Advancement in design and construction to embrace the impact of rapid global urbanization growth in infrastructure development is inevitable. The proceedings include many smart and green solutions for civil infrastructures, incorporating geotechnical and engineering geology aspects. The articles presented in this volume are attempts made by the researchers and practitioners to address many geotechnical challenges, based on the state-of-the-art practices, innovative technologies, new research results and case histories in construction and design towards safer and cost effective infrastructures. This volume covers a wide range of topics with direct relevance to people within the broad field of geomechanics, including consultants, contractors, academics, materials suppliers and the owners and operators of civil infrastructures. Many papers associated with numerical modeling of transport infrastructure, advanced soil and rock testing, field monitoring, tunnelling, expansive soils, geo-center motion, triaxial and dynamic testing, piles etc. are included. The content is based on the contributions to the 6th GeoChina International Conference on Civil & Transportation Infrastructures: From Engineering to Smart & Green Life Cycle Solutions -- Nanchang, China, 2021.
    Type of Medium: Online Resource
    Pages: X, 127 p. 77 illus., 57 illus. in color. , online resource.
    Edition: 1st ed. 2021.
    ISBN: 9783030796501
    Series Statement: Sustainable Civil Infrastructures,
    URL: https://doi.org/10.1007/978-3-030-79650-1
    DOI: 10.1007/978-3-030-79650-1
    DDC: 624.15
    Language: English
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  • 2
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    Security in Distributed, Grid, Mobile, and Pervasive Computing (2021)
    Taylor & Francis | CRC Press
    Details
    Publication Date: 2024-04-14
    Description: Despite recent dramatic advances in computer security regarding the proliferation of services and applications, security threats are still major impediments in the deployment of these services. Paying serious attention to these issues, Security in Distributed, Grid, Mobile, and Pervasive Computing focuses on the increasing demand to guarantee privacy, integrity, and availability of resources in networks and distributed systems. A rich and useful presentation of strategies for security issues, the book covers each computing area in separate sections. It first reviews security issues and challenges in content distribution networks, describes key agreement protocols based on the Diffie-Hellman key exchange and key management protocols for complex distributed systems like the Internet, and discusses securing design patterns for distributed systems. The next section focuses on security in mobile computing and wireless networks, covering wireless authentication methods, secure data aggregation, and anonymous routing protocol. After a section on grid computing security, the book presents an overview of security solutions for pervasive healthcare systems and surveys wireless sensor network security. With more and more vital information stored on computers, security professionals need to know how to combat threats and complications. Offering strategies to tackle these issues, this book provides essential security information for researchers, practitioners, educators, and graduate students in the field.
    Keywords: Computing ; Distributed ; Grid ; Mobile ; Pervasive ; Security ; thema EDItEUR::U Computing and Information Technology::UB Information technology: general topics ; thema EDItEUR::U Computing and Information Technology::UT Computer networking and communications ; thema EDItEUR::U Computing and Information Technology::UR Computer security ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TJ Electronics and communications engineering::TJK Communications engineering / telecommunications
    Language: English
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    Format: image/jpeg
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  • 3
    Electronic Resource
    Electronic Resource
    Strength Behaviour of Polysilicon Thin Film Flexure Hinge (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 33-37 (Mar. 2008), p. 545-552 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This work reports on strength behaviour of polysilicon thin film flexure hinge. In order todevelop a microscopic modelling of thin film flexure hinge for microstructures, in situ test bencheshave been designed and fabricated. The experiment demonstrated that a deviation between themacroscopic theory value and experimental result. A model similar to that used for rotational stiffnessin macroscopic steel is used to fit testing data for polysilicon film flexure hinge. The dynamiccharacteristic and fatigue behaviour of the thin film flexure hinge were also investigated. The hingewas excited by an integrated electro-thermal microactuator that could be self-heated and driven.Resonant frequency of the polysilicon flexure hinge test benches is 6.5 Hz, and the maximumoperating frequency reached 1KHz. When a cyclic loading of 1μN.μm was exerted to themicromachining flexure hinge, the limit stress alternation number exceed 1.0×108. When the stressalternation number exceeded 1.0×109, the polysilicon beam of microactuator would lost its elasticcharacter. If the micro hinge operated at high temperature (exceed 200/), the lifetime woulddecreased. If the working temperature were too high, the micro hinge would be burned out
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.545.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Aging Behavior of Mg-9Gd-4Y-0.6Mn Alloy (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 546-549 (May 2007), p. 425-428 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Microstructures and properties of rolled Mg-9Gd-4Y-0.6Mn（nominal wt%）sheets solutiontreated at 793K for 12h, and aged at various combinations of temperatures and time were investigatedby hardness measurement, tensile test and TEM. The evolution of the precipitates and their effect onthe mechanical properties of the pre-, peak-, and over-aged tempers were determined, and the optimalyield tensile strength (YTS) and ultimate tensile strength (UTS) were 276MPa and 287MPa at roomtemperature, respectively. It has been found that the addition of Mn into Mg-Gd-Y system contributesto block behavior of matrix diffuse and increase potential of heat resistance of the alloy
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.425.pdf
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  • 5
    Electronic Resource
    Electronic Resource
    Intensifying Smelting Synthesis Technique of 2500m〈sup〉3〈/sup〉 Blast Furnace (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 561-565 (Oct. 2007), p. 1031-1034 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Based on the existing smelt condition, after exploring and practicing, 2500m3BF of theStainless Steel Branch of Baosteel procured breakthrough on the intensifying smelting. Byresearching technologies of compounding many coke kinds for lessening the effect to the BF,adjusting the proportion of each ore to optimize the structure of charging, increasing the gas usingratio for cutting down fuel ratio, and taking low silicon smelting to optimize BF operation, the generalindicators in the top position among the same type blast furnaces in china
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/17/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.1031.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    Basic Analysis of Magnetic Field in High Temperature Bulk Superconductors (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 546-549 (May 2007), p. 2115-2118 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The analysis of magnetic field in high temperature bulk superconductors is presented in thispaper. The macroscopic field equations were constructed on the basis of the critical state model andlevitation forces ware analyzed between permanent magnets (PM) and HTSC using analytical method.The levitation force between permanent magnets (PM) and HTSC calculation were obtained by usingLorentz force equation [1]. The analytical results show that the presented method is comparativelyaccurate by comparing the measured levitation forces and the calculation ones. Some relationsbetween B(r, t) and levitation force’s hysteresis are investigated
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.2115.pdf
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  • 7
    Electronic Resource
    Electronic Resource
    Fracture Mechanism Analysis of Mg-9Gd-4Y-0.6Zr Alloy (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 546-549 (May 2007), p. 261-266 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The fractographs of Mg-9Gd-4Y-0.6Zr alloy specimens which were tensioned at differenttemperatures were investigated by optical and scanning electron microscopy, respectively. Theresults showed that different slip systems were activated at different temperatures, which wereresponsible for varied deformation mechanisms and fracture mechanisms. At 25 °C, the enabled slipsystems were few and only the slip systems on basal plane were able to be activated, so cleavagefracture was observed. At −196°C[removed info]the number of enabled slip systems increased, prismatic orpyramidal slip maybe occurred, so that an obvious low-temperature plasticity was observed, whilefracture mechanisms were mainly microvoid coalescence fracture with cleavage fracture in localareas. At 250 °C, 300 °C and 350 °C, the multisystem slips on the basal planes, the prismatic planesand the pyramidal planes were able to be activated, while fracture mechanisms were also microviodcoalescence fracture. At 400 °C, recrystallization happened, grain-boundary sliding in new finerecrystallized grains made the plastic deformation easy, showing coarse-grain superplasticityphenomenon, and an intergranular shear fracture took place
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.261.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    An analysis for imperfect sensitivity of a superconducting rod (1996)
    Springer
    Acta mechanica solida Sinica 9 (1996), S. 236-245 
    Details
    ISSN: 0894-9166
    Keywords: magneto-elasticity ; superconducting rod ; imperfect sensitivity ; bifurcation figure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract On the basis of the interaction between the electromagnetic field and a solid, the imperfect sensitivity of a superconducting rod is studied in this paper. The influences of the initial deflection of the rod and the initial magnetic field on the stability are discussed. One can see that the bifurcation response of the rod with imperfections is similar to the universal unfolding of the fork bifurcation from the singularity theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02208306
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  • 9
    Electronic Resource
    Electronic Resource
    BISTABLE CHOLESTERIC REFLECTIVE DISPLAYS:Materials and Drive Schemes (1997)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Materials Research 27 (1997), S. 117-146 
    Details
    ISSN: 0084-6600
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Cholesteric liquid crystals possess a helical structure and exhibit two stable states at zero field: the planar texture and the focal conic texture. In the planar texture, they reflect circularly polarized light, whereas in the focal conic texture, they scatter light in forward directions. They can be switched from the planar texture to the focal conic texture by a low-voltage pulse and switched from the focal conic texture to the planar texture by a high-voltage pulse. The wavelength of the reflected light is easily adjusted by varying the pitch of cholesteric liquid crystals. They can be used to make reflective displays that do not need a back light and have a good readability under room-light conditions. We first review the optical properties of bistable cholesteric reflective displays and discuss the techniques used to achieve high contrast and large viewing angle. We then discuss the transitions among the cholesteric textures and the drive schemes used to address bistable cholesteric reflective displays.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.matsci.27.1.117
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  • 10
    Electronic Resource
    Electronic Resource
    Microstructures and Microwave Dielectric Characteristics of CaRAlO4 (R = Nd, Sm, Y) Ceramics with Tetragonal K2NiF4 Structure (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Ceramic Society 87 (2004), S. 0 
    Details
    ISSN: 1551-2916
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: CaRAlO4 (R = Nd, Sm, Y) ceramics with a K2NiF4 structure were prepared by a solid-state reaction approach, and their microwave dielectric characteristics were evaluated, along with their microstructures. Dense CaNdAlO4, CaSmAlO4, and CaYAlO4 ceramics were obtained by sintering at 1425°–1500°C in air for 3 h, and good microwave dielectric characteristics were achieved: (1) ɛ= 18.2, Qf= 17 980 GHz, τf=−52 ppm/°C for CaNdAlO4; (2) ɛ= 18.2, Qf= 51 060 GHz, τf=−3 ppm/°C for CaSmAlO4; and (3) ɛ= 18.9, Qf= 39 960 GHz, τf= 6 ppm/°C for CaYAlO4.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1151-2916.2004.tb06373.x
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