1–20 von 61 Ergebnissen
|

    Advanced reactor concept for complex hydrides: Hydrogen desorption at fuel cell relevant boundary conditions

    Bürger, I. / Luetto, C. / Linder, M. | Tema Archiv | 2014
    capacities. As hydrogen is bonded by a chemical reaction to the solid state storage material, it is just released when heat is provided. In an ...

    A gas handling system for MOMBE growth

    Hersee, S.D. / Ballingall, J.M. | Tema Archiv | 1990
    Describes the operating principles and performance of a gas handling system, which was designed specifically for the metalorganic molecular ...

    An analysis of dielectric properties of synthetic ballast water at frequencies ranging from 300 to 3000 MHz

    Boldor, Dorin / Ortego, Jeffrey / Rusch, Kelly A. | Tema Archiv | 2008
    operations (extremely large volumes of water, efficiency at destroying macro and micro organisms, environmental issues associated with chemical ...

    An analytical and experimental study of a hybrid rocket motor

    Rezaei, Hadi / Soltani, Mohammad Reza | Tema Archiv | 2014
    The hybrid rocket motor is a kind of chemical propulsion system that has been recently given serious attention by various industries and ...

    A simplified model for natural-gas vehicle catalysts with honeycomb and foam substrates

    Tsinoglou, D.N. / Dimopoulos Eggenschwiler, P. / Thurnheer, T. et al. | Tema Archiv | 2009
    A mathematical model is developed for the simulation of the chemical and transport phenomena in three-way catalysts for natural-gas ...

    Constraints-based modeling enables successful development of a welding electrode specification for critical navy applications

    Sampath, K. | Tema Archiv | 2005
    requirements for advanced consumable electrodes were converted into a set of constraints that related chemical composition of steels to certain ...

    Destructive physical analysis results of Ni/H2 cells cycled in low Earth orbit regime (II)

    Lim, H.S. / Zelter, G.R. / Smithrick, J.J. et al. | Tema Archiv | 1994
    DPA included visual inspections, measurements of electrode thickness, scanning electron microscopy, chemical analyses, and measurements of ...

    Development and validation of a slurry model for chemical hydrogen storage in fuel cell vehicle applications

    Brooks, Kriston P. / Pires, Richard P. / Simmons, Kevin L. | Tema Archiv | 2014
    performance and suitability of slurry-based chemical hydrogen storage materials. The storage systems of both a representative exothermic system based ...

    Development of requirements for resistance spot welding dual-phase (DP600) steels. Part 2: Statistical analyses and process maps

    Marya, M. / Gayden, X.Q. | Tema Archiv | 2005
    thickness independent of chemical composition and galvanized coating. The selected methodology was so successful that maps to select process ...

    Effect of Na2SO4 additive in positive electrodes on the performance of sealed lead-acid cells for electric scooter applications

    Chen, Jenn-Shing | Tema Archiv | 2000
    This study investigated the effects of Na2SO4 additive in the positive electrode on the performance of sealed lead ...

    Effects of long term storage on aerospace nickel-cadmium cell performance

    Yi, T.Y. | Tema Archiv | 1987
    A study currently being performed at NASA/Goddard Space Flight Center (GSFC) to evaluate the long term effects of storage on aerospace ...
    Schlagwörter: CHEMICAL COMPOSITION DATA

    Effects of polarity on the friction and wear of collector shoes deployed in a metro traction system

    Dong, Lin / Zhong, Wen / Chen, Guang Xiong et al. | Tema Archiv | 2014
    coefficient, temperature rise and wear volume loss of the friction pair are measured. The chemical constituents of worn surfaces are investigated ...

    Electrical power systems on spacecrafts

    Kuwajima, S. | Tema Archiv | 1989
    A spacecraft carries electric power systems in order to achieve its mission. The practical use of a fuel cell comprising of hydrogen and ...
    Schlagwörter: CHEMICAL CAPACITORS

    Evaluation of chemical composition limits of GMA welding electrode specifications for HSLA-100 steel

    Sampath, K. / Varadan, R. | Tema Archiv | 2006
    A PC-based Turbo C++ algorithm was developed to quantitatively evaluate chemical composition limits of selected GMAW electrode ...

    Fuel cell technology and innovation

    Appleby, A.J. | Tema Archiv | 1992
    hydrogen, they are built into large chemical plants which may be regarded as dispersed refineries. The size of the plant is determined by this ...

    Fuel economy and life-cycle cost analysis of a fuel cell hybrid vehicle

    Kwi Seong Jeong / Byeong Soo Oh | Tema Archiv | 2002
    The most promising vehicle engine that can overcome the problem of present internal combustion is the hydrogen fuel cell. Fuel cells are ...

    Fuel options for the fuel cell vehicle: hydrogen, methanol or gasoline?

    Thomas, C.E. / James, B.D. / Lomax, F.D. jun. | Tema Archiv | 2000
    Fuel cell vehicles can be powered directly by hydrogen or, with an onboard chemical processor, other liquid fuels such as gasoline or ...

    Fuel processing for PEM fuel cells: transport and kinetic issues of system design

    Zalc, J.M. / Loffler, D.G. | Tema Archiv | 2002
    in the implementation of PEM fuel cells for automotive applications. Here, we apply basic chemical engineering principles to gain insight ...

    High energy density, thin-film, rechargeable lithium batteries for marine field operations

    Huang, Biying / Cook, C.C. / Mui, S. et al. | Tema Archiv | 2001
    ), deposited on aluminum foil and prepared by laser assisted vapor deposition of vanadium metal in an oxygen atmosphere of controlled chemical ...

    High performance modeling of atmospheric re-entry vehicles

    Martin, Alexandre / Scalabrin, Leonardo C. / Boyd, Iain D. | Tema Archiv | 2012
    of chemical species are involved. The CFD result demonstrates the need for such chemistry model when modeling the flow field around an ...