1–50 von 347 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 growth by solute diffusion in earth-orbit

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

    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

    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 ...

    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 ...

    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 ...

    Real-time obstacle avoidance based on sensory information

    Janigro, M. / D'Orazio, T. / Lovergine, F.P. et al. | Tema Archiv | 1992
    Detecting unexpected obstacles and avoiding collisions is an important taks for any autonomous mobile robot. In this paper we describe an ...
    Verlag: SPIE International Society for Optical Engineering , Bellingham

    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 ...

    Dynamic characterization of a lightweight, highly maneuverable spacecraft using modal and finite element analyses

    Manning, P.A. / Burdick, R.B. / Woehrle, T.G. | Tema Archiv | 1993
    deflection shapes for each natural mode of the mock-up. The experimental modal parameters were compared with the parameters obtained through modal ...

    Finite element analysis of the thermal characteristics of an automotive powertrain controller

    Romanczuk, C.S. / Burcham, S.W. / Evans, J.L. et al. | Tema Archiv | 1993
    at various power levels inputs. The powertrain controller evaluated for this program uses a single layered insulated metal substrate for ...

    Fuzzy logic and neural networks in space applications

    Jani, Y. / Aldridge, J. | Tema Archiv | 1993
    constructed around the idea of a set in which the membership is a matter of degree rather than yes or no. Though known for more than 30 years, the ...

    MCM-L technology: a systems cost analysis for a high volume automotive electronics application

    Evans, J.L. / Bosley, L.E. / Romanczuk, C. et al. | Tema Archiv | 1994
    Cost concerns related to the development and manufacturability of multichip modules have limited the widespread use of MCMs for high-volume ...

    World status of avionic AMLCD panels

    Tannas, L.E. jun. | Tema Archiv | 1994
    commercial AMLCD manufacturers have limited interest in this market for logical business reasons. The sources of panels are now limited to Toshiba in ...

    The steady state response calculation and damping vibration analysis of shrouded blades

    Ren, Yungsheng / Zhu, Demao | Tema Archiv | 1994
    . The related computer programs are written in fortran 77. The numeric analysis for the blades is completed. ...

    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 ...

    VCSEL optical subassembly for avionics fiber-optic modules

    Hager, H.E. / Chan, E.Y. / Beranek, M.W. et al. | Tema Archiv | 1996
    , the question of VCSEL suitability for use in avionics-qualifiable fiber-optic systems naturally follows. This paper addresses avionics ...
    Schlagwörter: OSA (optical subassembly)

    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 ...

    Thermal diffusion experiment Chuck - Payload of STABLE

    Ramachandran, N. / Baugher, C.R. / Rogers, J. et al. | Tema Archiv | 1996

    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 ...

    Neural network for track initiation and maintenance

    Winter, M. / Schmidlin, V. / Favier, G. | Tema Archiv | 1997
    Classical methods for multiple target tracking (such as the Joint Probabilistic Data Association (JPDA) Filter or the Nearest Neighbor ...

    Development of gazing algorithms for tracking oriented recognition

    Wang, S. / Chen, G. / Sapounas, D. et al. | Tema Archiv | 1997
    This paper describes the development of a computer vision system that hosts a suite of gazing algorithms for tracking oriented recognition ...

    Adaptive multi-sensor integration for mine detection

    Baker, J.E. | Tema Archiv | 1997
    application, while increasing the quality of the final result and provides a quantitative measure for comparing competing MSI techniques and sensor ...

    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 ...

    Constructing unified identification algorithms using a small number of observations for adaptive control and navigation systems

    Fursov, V.A. | Tema Archiv | 1997
    The paper deals with the development of identification algorithms for adaptive control systems, with specific features related to the ...

    Three-dimensional anthropometric techniques applied to the fabrication of burn masks and the quantification of wound healing

    Whitestone, J.J. / Geisen, G.R. / McQuiston, B.K. | Tema Archiv | 1997
    for successful mission performance of weapon systems, including cockpits, protective equipment, and clothing. The application of human body ...

    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 ...

    Missile-tracking algorithm using target-adapted spatio-temporal wavelets

    Mujica, F. / Leduc, J.P. / Smith, M.J.T. et al. | Tema Archiv | 1997

    Qualitative landmark recognition using visual cues

    Poovendran, R. / Speigle, S. / Srinivasan, S. et al. | Tema Archiv | 1997
    This paper presents a qualitative approach based on visual cues for man-made landmark recognition in outdoor as a navigational aid. This ...

    Detection of buried land mines using a casi hyperspectral imager

    McFee, J.E. / Ripley, H.T. | Tema Archiv | 1997
    Experiments were conducted to estimate the probability of detection (PD) and false alarm rate (FAR) for detection of buried mines using a ...

    Quantifying performance of mine detectors with fewer than 10000 targets

    Andrews, A.M. / George, V. / Altshuler, T.W. | Tema Archiv | 1997
    on small areas. Suggestions for improving results are given. We can estimate the uncertainty in a probability of detection measurement with a ...

    Passive position location using Bayes' conditional density filter

    Challa, S. / Faruqi, F.A. | Tema Archiv | 1997

    A radiometric sensor performance model including atmospheric and infrared clutter effects

    Richter, R. / Davis, J.S. / Duggin, M.J. | Tema Archiv | 1997
    The computer code SENSAT developed for radiometric investigations in remote sensing was extended to include two statistical clutter models ...

    An improved decision-theoretic approach to the optimum detection of mines

    Collins, L. / George, V. / Altshuler, T. et al. | Tema Archiv | 1997
    for a known environment to incorrect prior knowledge of uncertain parameters in the demining scenario, and the robustness of performance and ...