1–50 von 157 Ergebnissen
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    Holiddo: an interferometer for space experiments

    Mary, J. / Bernard, y. / Lefaucheux, F. et al. | Tema Archiv | 1991
    adapted to the investigator's requirements. Optical characterization is made either by direct viewing or by interferometric holography imaging in ...

    Particle image velocimetry experiments for the IML-I spaceflight

    Trolinger, J.D. / Lal, R.B. / Batra, A.K. et al. | Tema Archiv | 1991
    The first International Microgravity Laboratory (IML-1), scheduled for spaceflight in early 1992 includes a crystal-growth-from-solution ...

    Design and development of the zeolite crystal growth (ZCG) facility

    Fiske, M.R. | Tema Archiv | 1991
    large crystals. To this end, the Battelle Advanced Maeterials Center for the Commercial Development of Space (CCDS) is funding the development ...

    Crystal separation from mother solution and conservation under microgravity conditions using inert liquid

    Regel, L.L. / Vedernikov, A.A. / Queeckers, P. et al. | Tema Archiv | 1991
    microgravity is investigated. The goal to be reached is to propose an efficient and simple system. This method has to be applicable for an automatic ...

    Compact spaceflight solution crystal-growth system

    Trolinger, J.D. / Lal, R. / Vikram, C. et al. | Tema Archiv | 1991

    NASA microgravity materials science program

    Sokolowski, R.S. | Tema Archiv | 1991

    In-situ observation of crystal growth in microgravity by high resolution microscopies

    Katsuo Tsukamoto / Kazuo Onuma | Tema Archiv | 1991
    High resolution in-situ observation methods were developed for the investigation of crystal growth mechanisms from solution phases. Crystal ...

    Commercial crystal growth in space

    Wilcox, W.R. | Tema Archiv | 1991
    NASA's Centers for the Commercial Development of Space, many private companies, and government laboratories. Projects range from growth of large ...

    Crystal growth by solute diffusion in earth-orbit

    Lind, M.D. / Nielsen, K.F. | Tema Archiv | 1991

    Large zeolites - why and how to grow in space

    Sacco, A. jun. | Tema Archiv | 1991

    A flight experiment to investigate microgravity effects on solidification phenomena of selected material

    Maag, C.R. / Hansen, P.A. | Tema Archiv | 1991
    samples has been manifested for flight on STS-42. The first flight of the furnace assembly will a) investigate the p-n junction characteristics ...

    Dynamic responses of aircraft wing made of composite materials

    He, Lianzhu / Wang, I-Chih / Tang, DaZe | Tema Archiv | 1993
    and structural responses of a prototype design are relatively difficult to predict. In this paper, procedures of response analysis for ...

    Frontiers in Infrared Windows and Dome Materials

    Harris, D.C. | Tema Archiv | 1995
    discussed. Engineering alternatives must be considered for extending the range of operating conditions for infrared windows and dome materials. ...

    Ultralightweight silicon carbide infrared cryogenic telescope

    Anapol, M. / Philippon, R. / Tucker, T. et al. | Tema Archiv | 1995
    silicon carbide telescope is an extremely attractive technology which offers the lightweight and stiffness features of beryllium, the optical ...

    The pizoelectric aeroelastic response tailoring investigation: a status report

    Heeg, J. / McGowan, A. / Crawley, E. et al. | Tema Archiv | 1995
    Experimental and analytical investigations are described about using piezoelectric actuators for tailoring the aeroelastic response of a ...

    The universal multizone crystallizator (UMC) furnance: an international cooperative agreement

    Watring, D.A. / Su, C.H. / Gillies, D. et al. | Tema Archiv | 1996
    The universal multizone crystallizator (UMC) has been developed and patented by a team at the University of Miskolc for crystal growth of ...

    Space processing of biopolymer/metal composites for NLO applications

    Trantolo, D.J. / Mogul, M.G. / Wise, D.L. et al. | Tema Archiv | 1996
    optical materials). The authors have previously demonstrated the rationale for orienting biopolymers, materials with known supramolecular ...

    Noiseless propulsion for swimming robotic structures using polyelectrolyte ion-exchange membrane

    Mojarrad, M. / Shahinpoor, M. | Tema Archiv | 1996
    frequency and amplitude, K for this experimental robotic swimmer using a rectangular strip of polyelectrolyte ion-exchange-metal-composite membrane ...

    Shape memory alloy TiNi actuators for twist control of smart wing designs

    Jardine, A.P. / Kudva, J.N. / Martin, C. et al. | Tema Archiv | 1996
    being studied for a subscale model of a fighter aircraft. The use of the SME (Shape Memory Alloy) TiNi for wing twist actuation was investigated ...

    The advanced automated directional solidification furnace

    Gillies, D.C. / Reeves, F.A. / Jeter, L.B. et al. | Tema Archiv | 1996
    The advanced automated directional solidification furnace (AADSF) is a five zone tubular furnace disigned for Bridgeman-Stockbarger and ...

    MSG: Microgravity science glovebox

    Baugher, C.R. / Ramachandran, N. / Roark, W. | Tema Archiv | 1996
    mechanical, electrical, data, video, gas and vacuum connection, lighting and thermal control for microgravity sciences payloads operations on the ...

    Features of chemical elements migration in the near-surface layers of metals and alloys during thermal cycling

    Smiyan, O.D. / Grigorenko, G.M. / Mikhailovskaya, E.S. et al. | Tema Archiv | 1996
    of surface layers of metallic materials for the space vehicles. Changes of the elementary composition during thermal cycling were recorded by ...

    Shape memory actuated release devices

    Carpanter, B. / Clark, C. / Weens, W. | Tema Archiv | 1996
    vehicle, deployment of solar arrays and other appendages. Existing technologies may not be able to meet mechanism requirements for future ...

    New technique using CO2 laser for high heating and simultaneous optical characterization of IR windows

    Simoneau, J. / Feller, R. / Peatfield, C. et al. | Tema Archiv | 1997
    magnitude and distribution of the heat on the window. Therefore, for each missile application, it is critical to be able to determine the optical ...

    Fabrication and testing of diamond coatings on infrared windows for the Harrier GR7 and AV8-B systems

    Hudson, M.D. / Brierley, C.J. / Miller, A.J. et al. | Tema Archiv | 1997
    Forward looking infrared windows on aircraft suffer damage from liquid and solid particle impact. Diamond is a suitable material for ...

    Smart fastener for KC-135 structural integrity monitoring

    Schoess, J.N. / Seifert, G. | Tema Archiv | 1997
    Hidden and inaccessible corrosion in aircraft structures is the number-one logistics problem for the U.S. Air Force, with an estimated ...

    Developing 1-3 piezocomposites for large-area smart skin applications

    Ting, R.Y. / Howarth, T.R. | Tema Archiv | 1997
    New 1-3 piezocomposite materials have been investigated for potential underwater smart skin applications. PZT-5H was used as the ceramic ...

    Applications for thermal NDT on advanced composites in aerospace structures

    Baughman, S.T. | Tema Archiv | 1998
    Time Dependent Thermography (TDT) is a key approach for unlocking the potential of infrared thermography NDE for aerospace applications ...
    Verlag: SPIE International Society for Optical Engineering , Bellingham

    Actuator development for a flapping microrobotic microaerial vehicle

    Cox, A. / Garcia, E. / Goldfarb, M. | Tema Archiv | 1998
    areas result in low Reynolds numbers. For Re's below 103 conventional fixed wing flight is no longer possible because drag becomes ...

    Non-destructive test methods for evaluating durability of concrete highway structures. Experience of Ontario Ministry of Transportation

    Ip, A. / Berszakiewicz, B. / Pianca, F. | Tema Archiv | 1998
    Verlag: SPIE International Society for Optical Engineering , Bellingham

    Thermographic detection and quantitative characterization of corrosion by application of thermal line source

    Cramer, K.E. / Winfree, W.P. | Tema Archiv | 1998
    designed to determine the spatial resolution of the system. A steady state solution for the induced thermal change in the plate is presented. When ...
    Verlag: SPIE International Society for Optical Engineering , Bellingham

    Development of a high-mobility wheeled robot for humanitarian mine clearance

    Colon, E. / Alexandre, P. / Weemaels, J. et al. | Tema Archiv | 1998

    NDE applications in an anchor bolt and sign bridge inspection program

    Fish, P.E. | Tema Archiv | 1998
    Verlag: SPIE International Society for Optical Engineering , Bellingham

    Integration of piezoceramic actuators in fiber-reinforced structures for aerospace applications

    Durr, J. / Herold-Schmidt, U. / Zaglauer, H.W. et al. | Tema Archiv | 1998
    Up to now experimental and theoretical research on active structures for aerospace applications has put the focus mainly on surface bonded ...

    Molecularly oriented polymeric thin films for space applications

    Fay, C.C. / Stoakley, D.M. / St. Clair, A.K. | Tema Archiv | 1998
    the earth has focused attention on organic polymeric materials for a variety of applications in space. Some polymeric materials have exhibited ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Evaluation and selection of replacement thermal control materials for the Hubble Space Telescope

    Townsend, J.A. / Hansen, P.A. / McClendon, M.W. et al. | Tema Archiv | 1998
    The mechanical and optical properties of the metallized Teflon FEP thermal control materials on the Hubble Space Telescope (HST) have ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Application of holography to real-time dynamic structural analysis of an advanced graphite-epoxy composite flight control component

    Fein, H. | Tema Archiv | 1998
    for data collection in either actual flight test or wind-tunnel simulations. Advanced optical holography techniques are alternate methods when ...

    Electrically conductive, low solar absorption, atomic oxygen resistant films for spacecraft thermal and charge control

    Lennhoff, J. / Guiles, M. / Harris, G. et al. | Tema Archiv | 1998
    There is a significant requirement for an electrically conductive thermal control film for the dissipation of spacecraft charging. The ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Vibration control of a flexible beam through a smart structure concept

    Goud, A.P. / Umapathy, M. | Tema Archiv | 1998
    Active control has become important in structural systems as an efficient tool for vibration suppression. A cantilever beam has been chosen ...

    Vehicular applications of smart material systems

    Leo, D.J. / Weddle, C. / Naganathan, N. et al. | Tema Archiv | 1998
    The results of an initial investigation in the use of smart material system for automobiles are presented. For this work, a smart material ...

    Nonlinear effects of electrorheological fluids and their application in smart avionic systems

    Berg, C.D. / Wellstead, P.E. | Tema Archiv | 1998
    envisaged, for example the control of the passive damping characteristics of a landing gear oleo. This could be beneficial to the airframers by ...

    Identification of mechanical properties of composite lamina using a distributed piezoelectric transducer

    Hong, Danbi / Ryou, Jung-Kyu / Park, Sungho et al. | Tema Archiv | 1998
    G12, are design parameters for the identification process. The proposed method is applied to predict the dynamic behavior of laminated ...

    Degradation of Hubble Space Telescope metallized Teflon FEP thermal control materials

    Hansen, P.A. / Townsend, J.A. / Yoshikawa, Y. et al. | Tema Archiv | 1998
    The mechanical and optical properties of the metallized Teflon Fluorinated Ethylene Propylene (FEP) thermal control materials on the Hubble ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Development of tailorable electrically conductive thermal control material system

    Deshpande, M.S. / Harada, Y. / Vaughn, J. | Tema Archiv | 1998
    material design concepts that can provide required electrical conductivity along with acceptable optical and thermal properties performance when ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Analysis of retrieved Hubble Space Telescope thermal control materials

    Townsend, J.A. / Hansen, P.A. / Dever, J.A. et al. | Tema Archiv | 1998
    The mechanical and optical properties of the thermal control materials on the Hubble Space Telescope (HST) have degraded over the nearly ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Solar absorption of the FEP samples returned from the HST Servicing Missions

    He, C. / Townsend, J.A. | Tema Archiv | 1998
    Missions (SMs), was measured to assess the effect of the space environment on the optical properties of the material. The solar absorptance of the ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Recent advances in the quality of CVD diamond optical components

    Wort, C.J.H. / Pickles, C.S.J. / Beale, A.C. et al. | Tema Archiv | 1999
    Reports on the properties and applications of polished polycrystalline diamond optical components produced by chemical vapor deposition and ...

    A new Ag/Pd conductor for automotive applications

    Malanga, D.J. / Levitsky, M. / London, A. et al. | Tema Archiv | 1999
    New materials and powder technology have been applied to conductor formulations targeted for the harsh environments of under the hood ...

    A time-domain simulation for evaluating smart wing concepts for reducing gust loads

    Hall, B.D. / Preidikman, S. / Mook, D.T. et al. | Tema Archiv | 1999
    A numerical simulation for evaluating methods of predicting and controlling the response of an elastic wing in an airstream is discussed ...