1–50 von 134 Ergebnissen
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    Prediction of Chemical Nonequilibrium Flow Structure at Different Free-Stream Knudsen Numbers

    He, Tao / Wang, Jiang-Feng | ASCE | 2016
    . Further, the effects of chemical nonequilibrium on hypersonic rarefied flow-field structure are investigated to verify the applicability of the ...
    Verlag: American Society of Civil Engineers

      Prediction of Chemical Nonequilibrium Flow Structure at Different Free-Stream Knudsen Numbers

      He, Tao | Online Contents | 2016
      AbstractA numerical study is conducted to investigate the effects of the inflow Knudsen number (Kn) on hypersonic chemical nonequilibrium ...

      Prediction of Chemical Nonequilibrium Flow Structure at Different Free-Stream Knudsen Numbers

      He, Tao | Online Contents | 2016
      AbstractA numerical study is conducted to investigate the effects of the inflow Knudsen number (Kn) on hypersonic chemical nonequilibrium ...

    Design Methodology for the Performance, Weight, and Economic Assessment of Chemical Rocket Engines

    Frank, Christopher P. / Pinon-Fischer, Olivia J. / Mavris, Dimitri N. et al. | ASCE | 2016
    particular, it provides the capabilities to rapidly evaluate the performance, weight, size, and lifecycle costs of all chemical rocket engines at a ...
    Verlag: American Society of Civil Engineers

    Design Methodology for the Performance, Weight, and Economic Assessment of Chemical Rocket Engines

    Tyl, Clémence M | Online Contents | 2017
    the capabilities to rapidly evaluate the performance, weight, size, and lifecycle costs of all chemical rocket engines at a conceptual level ...

      Design Methodology for the Performance, Weight, and Economic Assessment of Chemical Rocket Engines

      Tyl, Clémence M | Online Contents | 2016
      the capabilities to rapidly evaluate the performance, weight, size, and lifecycle costs of all chemical rocket engines at a conceptual level ...

    Fabrication of nanocomposite membranes from nanofibers and nanoparticles for protection against chemical warfare stimulants

    Sundarrajan, S. / Ramakrishna, S. | Tema Archiv | 2007
    Nanoparticles of MgO were synthesized by the aero-gel method. These MgO nanoparticles were then mixed with various polymer solutions (poly ...

    The influence of basecoat pigmentation on chemical structure and surface topology of automotive clearcoats during weathering

    Yari, H. / Moradian, S. / Ramezanzadeh, B. et al. | Tema Archiv | 2012
    The present study aims at elucidating the effect of basecoat pigmentation on the chemical structure and surface topology of its attached ...

    Computationally designed monomers for molecular imprinting of chemical warfare agents - Part V

    Pavel, Dumitru / Lagowski, Jolanta / Lepage, Carmela Jackson | Tema Archiv | 2006
    intermolecular interactions in molecular imprinting of chemical warfare (CW) agents into complex monomeric systems. Molecular dynamic (MD) simulations ...

    Modified clay minerals efficiency against chemical and biological warfare agents for civil human protection

    Placha, Daniela / Rosenbergova, Katerina / Slabotinsky, Jiri et al. | Tema Archiv | 2014
    chemical indication and gas chromatography methods. The antibacterial activities of synthetized organoclays were tested against selected Gram ...

    Chemical Propulsion: Greater than 60 Years of Leadership and Innovation at NASA Glenn Research Center

    Linne, Diane L. / Aukerman, Carl A. / Palaszewski, Bryan A. | ASCE | 2013
    same aeropropulsion engineers would progress into the largely unexplored field of space chemical propulsion. Starting before the launch of ...
    Verlag: American Society of Civil Engineers

    Life cycle assessment of chemical agent resistant coatings

    Stone, K.R. / Tolle, A. | Tema Archiv | 1998

    Time-Dependent Second-Order Viscoelastic Fluid Flow on Rotating Cone with Heat Generation and Chemical Reaction

    Saleem, Salman / Nadeem, Sohail / Awais, Muhammad | ASCE | 2016
    the presence of chemical reaction and heat generation or absorption effects under prescribed heat flux conditions. The boundary-layer ...
    Verlag: American Society of Civil Engineers

    Chemical depth profiling of multi-layer automotive coating systems

    Adamsons, K. | Tema Archiv | 2002
    Detailed chemical analysis of high performance automotive coating systems can be done with a relatively available and affordable set of ...

    N-chloramide modified Nomex as a regenerable self-decontaminating material for protection against chemical warfare agents

    Salter, Bruce / Owens, Jeffery / Hayn, Ryan et al. | Tema Archiv | 2009
    Recent interest in the treatment of textiles for chemical and biological agent defense has led to the creation of materials that contain TV ...

    Two-Dimensional Boundary Layer Flow of Chemical Reaction MHD Fluid over a Shrinking Sheet with Suction and Injection

    Khan, Y. | ASCE | 2014

    In this paper, the steady two-dimensional boundary layer flow of chemical reaction magnetohydrodynamics (MHD

     ...
    Verlag: American Society of Civil Engineers

    Influence of chemical composition of microalloyed steel and cooling rate of HAZ metal of pipe welded joints on its structure and impact toughness

    Rybakov, A.A. / Filipchuk, T.N. / Kostin, V.A. et al. | Tema Archiv | 2013
    effect of chemical composition of microalloyed steel and cooling rate of HAZ metal of pipe welded joints on its structure-and-phase state and ...

    Time-Dependent Second-Order Viscoelastic Fluid Flow on Rotating Cone with Heat Generation and Chemical Reaction

    Nadeem, Sohail | Online Contents | 2016
    AbstractThe present analysis deals with the study of time-dependent flow of a second-order fluid on a rotating cone in the presence of ...

      Time-Dependent Second-Order Viscoelastic Fluid Flow on Rotating Cone with Heat Generation and Chemical Reaction

      Nadeem, Sohail | Online Contents | 2016
      AbstractThe present analysis deals with the study of time-dependent flow of a second-order fluid on a rotating cone in the presence of ...

    Employment of electro-chemical deposition in manufacture and maintenance of automobiles

    Wilson, R.E. | Engineering Index Backfile | 1942
    Processes developed from plating technique; adhesion of deposited metals; resistance to corrosive attack and to fretting corrosion ...
    Verlag: Institution of Automobile Engineers

    Analytical Study for the Effects of Chemical Reaction and Mass Transfer on Free Convective Flow Past a Vertical Isothermal Cone Surface

    Odda, S. N | Online Contents | 2015
    AbstractAn analytical study is presented for the effects of chemical reaction and mass transfer on the free convective flow of a viscous ...

      Analytical Study for the Effects of Chemical Reaction and Mass Transfer on Free Convective Flow Past a Vertical Isothermal Cone Surface

      Odda, S. N | Online Contents | 2016
      AbstractAn analytical study is presented for the effects of chemical reaction and mass transfer on the free convective flow of a viscous ...

    Analytical Study for the Effects of Chemical Reaction and Mass Transfer on Free Convective Flow Past a Vertical Isothermal Cone Surface

    Seddeek, M. A. / Odda, S. N. / Abdelmeguid, M. S. | ASCE | 2015

    An analytical study is presented for the effects of chemical reaction and mass transfer on the free convective

     ...
    Verlag: American Society of Civil Engineers

    Effects of Chemical Reaction and Nonlinear Thermal Radiation on Williamson Nanofluid Slip Flow over a Stretching Sheet Embedded in a Porous Medium

    Prasannakumara, B. C. / Gireesha, B. J. / Gorla, Rama S. R. et al. | ASCE | 2016

    The main emphasis of the present study is to discuss the effect of chemical reaction on flow, heat, and mass

     ...
    Verlag: American Society of Civil Engineers

      Effects of Chemical Reaction and Nonlinear Thermal Radiation on Williamson Nanofluid Slip Flow over a Stretching Sheet Embedded in a Porous Medium

      Prasannakumara, B. C | Online Contents | 2016
      AbstractThe main emphasis of the present study is to discuss the effect of chemical reaction on flow, heat, and mass transfer of Williamson ...

    An experimental investigation on mechanical fatigue property of chemical starch-based ER fluids

    Lee, H.G. / Choi, S.B. / Kim, J.H. et al. | Tema Archiv | 2002
    In this work, mechanical fatigue properties of a chemical starch-based ER fluid are empirically investigated. To do this, a flow-mode type ...

    Effects of Chemical Reaction and Nonlinear Thermal Radiation on Williamson Nanofluid Slip Flow over a Stretching Sheet Embedded in a Porous Medium

    Gireesha, B. J | Online Contents | 2016
    AbstractThe main emphasis of the present study is to discuss the effect of chemical reaction on flow, heat, and mass transfer of Williamson ...

    Characterization of hypervelocity impact craters on chemical vapour-deposited diamond and diamond-like carbon films

    Ramesham, R. / Best, S. / Rose, M.F. et al. | Tema Archiv | 1997
    particles. As-deposited films were analysed by Raman for their chemical nature. The morphology and dimensions of hypervelocity impact craters in ...

    Emulsifiers with high chemical resistance: a key to high performance waterborne coatings

    Duecoffre, V. / Diener, W. / Flosbach, C. et al. | Tema Archiv | 1998
    improving the chemical resistance of the resulting crosslinked films, especially against acids. There upon they show no discoloring even at high ...

    Chemical depth profiling of automotive coating systems using slab microtome sectioning with IR/UV-VIS spectroscopy and optical microscopy

    Adamsons, K. | Tema Archiv | 2002
    Chemical surface/near-surface analysis and depth profiling of high performance automotive coating systems can be done efficiently by ...

    Re-examining the influence of chloride ions on electrochemical CO2 corrosion of pipeline steels—corrosion of the heat-affected zones (HAZs) of API-X100 steel

    Eliyan, Faysal Fayez / Alfantazi, Akram | Tema Archiv | 2015
    This research investigates the corrosion characteristics of simulated heat-affected zones (HAZs) of API X-100 pipeline steels in ...

    Biocide injection as a means of internal corrosion control of oil pipelines

    Aloko, D.F. / Mohammed, A.D. | Tema Archiv | 2007
    This research work is aimed at investigating the effect of biocide injection in the treatment of internal corrosion of oil pipelines. In ...

    Multivariate Comparison of Lunar Soil Simulants

    Zarzycki, Paweł K. / Katzer, Jacek | ASCE | 2019
    used to enable large-scale lunar research programs. They are supposed to be precise copycats of lunar soil in chemical composition, mineralogy ...
    Verlag: American Society of Civil Engineers

    Characteristics of IPN Adhesive Bonding of Polyether Imide to Titanium for Aerospace Application

    Ahmed, Sabbir / Chakrabarty, Debabrata / Mukherjee, Subroto et al. | ASCE | 2017
    bonding of surface-modified polyether imide (PEI) to titanium (Ti) under elevated temperatures and an aggressive chemical environment as well as ...
    Verlag: American Society of Civil Engineers

    Characteristics of IPN Adhesive Bonding of Polyether Imide to Titanium for Aerospace Application

    Bhowmik, Shantanu | Online Contents | 2017
    AbstractThis investigation highlights the performance of epoxy-novolac interpenetrating polymer network (IPN) adhesive bonding of surface ...

      Characteristics of IPN Adhesive Bonding of Polyether Imide to Titanium for Aerospace Application

      Bhowmik, Shantanu | Online Contents | 2017
      AbstractThis investigation highlights the performance of epoxy-novolac interpenetrating polymer network (IPN) adhesive bonding of surface ...

    Exploratory Review of Sintered Lunar Soil Based on the Results of the Thermal Analysis of a Lunar Soil Simulant

    Bonanno, A. / Bernold, L. E. | ASCE | 2014

    The exploration and development of space will require energy that is reliable, ubiquitous, and economical to

     ...
    Verlag: American Society of Civil Engineers

    Exploratory Review of Sintered Lunar Soil Based on the Results of the Thermal Analysis of a Lunar Soil Simulant

    Bernold, L. E | Online Contents | 2015
    AbstractThe exploration and development of space will require energy that is reliable, ubiquitous, and economical to produce. The ...

    Analysis of wear debris in rolling contact fatigue cracks of pearlitic railway wheels

    Cvetkovski, K. / Ahlström, J. / Norell, M. et al. | Tema Archiv | 2014
    concentration of oxygen was measured in between flakes, indicating the presence of oxides and flakes being of similar chemical composition as the base ...

    Chemistry of thermal ageing in aerospace epoxy composites

    Bondzic, S. / Hodgkin, J. / Krstina, J. et al. | Tema Archiv | 2006
    The detailed chemical reactions involved in the thermal ageing (at 120 degC) of a typical aerospace epoxy composite have been studied by ...

    Geotechnical Properties of Uncompacted DNA-1A Lunar Simulant

    Marzulli, Valentina / Cafaro, Francesco | ASCE | 2018

    Understanding the mechanical behavior of lunar regolith is of great importance to address the building of

     ...
    Verlag: American Society of Civil Engineers

    Defects of joints of high-strength rails produced using flash-butt welding

    Kuchuk-Yatsenko, S.I. / Shvets, V.I. / Didkovsky, A.V. et al. | Tema Archiv | 2013
    chemical heterogeneity of the fracture surface was performed using Auger-microprobe JAMP 9500F of the JEOL company (Japan). The defects formed as a ...

    Effects of compounding ingredients of a tyre tread of NR based compound on physical properties, special reference to hardness

    Karak, N. / Gupta, B.R. | Tema Archiv | 2000
    In the present paper, the effect of dose of stearic acid, ZnO, process oil, the particle size of carbon black, dose of sulfur, and CBS ...

    Effect of microstructure and texture on formability and mechanical properties of hot-dip galvanized steel sheets

    Safaeirad, M. / Toroghinejad, M.R. / Ashrafizadeh, F. | Tema Archiv | 2008
    microscopy and their chemical compositions were analyzed by energy dispersive spectroscopy (EDS). The crystallographic orientation of the coatings ...

    Degradation of mechanical properties of advanced composites exposed to aircraft environment

    Horn, W.J. / Shaikh, F.M. / Soeganto, A. | Tema Archiv | 1989
    The degradation of the mechanical properties of Imperial Chemical Industries APC-2 'Victrex' Gr/PEEK laminates was measured after exposure ...

    Volcanic Ash-Induced Decomposition of EB-PVD Gd2Zr2O7 Thermal Barrier Coatings to Gd-Oxyapatite, Zircon, and Gd, Fe-Zirconolite

    Mechnich, Peter / Braue, Wolfgang / Green, D.J. | Tema Archiv | 2013
    . However, first-generation Gd-oxyapatite and Gd-FSZ are exhibiting chemical evolution in the long term. The chemical composition of Gd-oxyapatite ...

    Vertical Transport of Lunar Regolith and Ice Particles Using Electrodynamic Traveling Wave

    Kawamoto, Hiroyuki / Hata, Kazuhiro / Shibata, Takahiko | ASCE | 2021
    from the lunar surface, chemical and physical forms, and the amount of water, is unclear, the Japan Aerospace Exploration Agency (JAXA) is ...
    Verlag: American Society of Civil Engineers

    Vertical Transportation of Lunar Regolith and Ice Particles Using Vibrating Tube

    Kawamoto, Hiroyuki / Kubo, Keita / Kikumiya, Ryo et al. | ASCE | 2021
    utilizing a vibration transportation mechanism that realizes the lifting of particles to physical and chemical analyzers installed on the rover. In ...
    Verlag: American Society of Civil Engineers

    Three-Dimensional Flow of Maxwell Fluid with Soret and Dufour Effects

    Bilal Ashraf, M. / Hayat, T. / Alhuthali, M. S. | ASCE | 2015
    stretching surface with convective boundary conditions. Analysis is carried out in the presence of mass transfer with first-order chemical reactions ...
    Verlag: American Society of Civil Engineers

    A modern analytical toolbox: defect (W&D) studies of automotive coating systems, including depth profiling studies

    Adamsons, Karlis | Tema Archiv | 2012
    Chemical and microscopy measurement technologies have proven to be very powerful in our failure analysis efforts to detail composition and ...

    Dynamic Simulation of Insulation Material Ablation Process in Solid Propellant Rocket Motor

    Zeng, Zhuo Xiong | Online Contents | 2015
    diene monomer (EPDM) ablative composite used as heat shield was analyzed. The physical, chemical, and mechanical processes of ablation were ...

    Impedance study of imidazoline inhibitors against hydrogen sulphide corrosion of steel

    Szyprowski, A.J. | Tema Archiv | 2002
    Seven homologous imidazoline inhibitors, the derivatives of cyclopentylic and cyclohexylonaphthenic acids, have been synthesised. The ...

    Dynamic Simulation of Insulation Material Ablation Process in Solid Propellant Rocket Motor

    Xu, Yi Hua / Hu, Xu / Yang, Yu Xin et al. | ASCE | 2014
    diene monomer (EPDM) ablative composite used as heat shield was analyzed. The physical, chemical, and mechanical processes of ablation were ...
    Verlag: American Society of Civil Engineers

    Aerothermodynamic Assessment of Spiked Configuration for Drag Reduction at Hypersonic Speeds

    Kumar, Shailendra / Kulkarni, Vinayak / Jammy, Satya Pramod | ASCE | 2020
    reduction effectiveness. In-house perfect gas and chemical nonequilibrium solvers were utilized. The analysis revealed that flow separation and ...
    Verlag: American Society of Civil Engineers

    Characterization of high performance composite coating for the northern pipeline application

    Howell, G.R. / Cheng, Y.F. | Tema Archiv | 2007
    northern area. In this work, the physical, chemical and mechanical properties of HPCC were investigated to determine the microstructure, water ...