search-head

Sie sind hier: Homepage >  Suche

Chemische und Umwelttechnik   Chemie   Englisch   Auswahl aufheben
1–50 von 342 Ergebnissen
|
Sortieren:

    Optical figure testing of prototype mirrors for JPL's precision segmented reflector (PSR) program

    Hochberg, E.B. | Tema Archiv | 1991
    shifting interferometer operating at 10.59 microns and laser metrology for measurement of piston and absolute radius of curvature. The optical ...

    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 ...

    Theoretical limits of dimensional stability for space structures

    Dolgin, B.P. / Moacanin, J. / O'Donnell, T. | Tema Archiv | 1991

    A fluorescence-based fiber optic temperature sensor for aerospace applications

    Tilstra, S.D. | Tema Archiv | 1991
    an optical temperature sensor designed for aircraft and engine environments based on the fluorescent time rate of decay (TRD) principle. The ...

    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 ...

    NASA microgravity materials science program

    Sokolowski, R.S. | 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

    Measuring residual accelerations in the spacelab environment

    Witherow, W.K. | Tema Archiv | 1991
    orbiter can provide long periods of microgravity for performing experiments. However, residual gravitational accelerations still remain. In May ...

    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

    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 ...

    Fiber optic rotation sensor for long lifetime space missions

    Dorsky, L. / Bartman, R. / Lehman, D. et al. | Tema Archiv | 1992
    are intended to eventually serve as replacements for spinning mass systems and ring laser gyros in applications that place a premium on long ...

    Fiber optic gyroscopes for vehicle navigation systems

    Kumagi, T. / Soekawa, H. / Yuhara, T. et al. | Tema Archiv | 1993
    Fiber optic gyroscopes (FOGs) have been developed for vehicle navigation systems and are used in TOYOTA Motor Corporation models MARKII ...

    Signal preprocessing and parameter estimation for aircraft flight flutter test

    Zeng, Qinghua / Zhang, Lingmi / Zhang, Chunning | Tema Archiv | 1993
    and parameter estimation for the flight flutter test data analysis are discussed in the paper. The main troubles of the data analysis lie in ...

    High reflectance coatings for space applications in the EUV

    Keski-Kuba, R.A.M. / Gum, J.S. / Osantowski, J.F. et al. | Tema Archiv | 1993
    Advances in optical coating and materials technology have made possible the development of instruments with substantially improved ...

    Comparison of chirped FM/CW and chirped AM/CW fiber optic position sensors for aerospace applications

    Newman, L.A. | Tema Archiv | 1993
    During the past five years, fiber optic position sensing for aerospace applications based on high bandwidth chirped modulation of laser ...

    Application and study of structural vibration intensity measurement technique to reducting vibration and noise in tracked vehicles

    Yi, Chuijie / Zhang, J. / Lu, G.Q. et al. | Tema Archiv | 1993
    applied to some engineering structures made up plate or shell, such as complex as the hull of tracked vehicles. By means of the method, the ...

    High-frequency performance characteristics of a passive hydraulic engine mount

    Gun Kim / Singh, R. | Tema Archiv | 1993

    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 ...

    Vibration levels of trucks' leaf springs and air suspensions

    Lozano-Guzman, A. / Lopez-Cojun, C.S. / Tapia-Armas, J.R. | Tema Archiv | 1993

    Modal analysis of an axial flow fan blade

    Öhman, H.J.L. / Singhal, R.K. | Tema Archiv | 1993
    An experimental modal analysis has been performed on an axial flow fan blade in order to compley with the technical specification for the ...

    Flight testing of a fiber optic temperature sensor

    Finney, M.J. / Tregay, G.W. / Calabrese, P.R. | Tema Archiv | 1993
    A fiber optic temperature sensor (FOTS) system consisting of an optical probe, a flexible fiber optic cable, and an electro-optic signal ...

    Analysis of the dynamic behaviour of a car power unit for comfort optimisation

    Campanile, P. / Urbinati, M. / Saluini, P. et al. | Tema Archiv | 1994
    Noise reduction and optimal passenger vibration isolation are more and more a necessary feature for modern vehicles. In this paper we ...

    Non-modal method of structure dynamic response identification for a prototype commercial jet aircraft fuselage

    Li, W.X. / Mitchell, L.D. / Lu, M.F. | Tema Archiv | 1994
    For a high modal density, high damping, and complex structure, various well known modal parameter estimation techniques often fails due to ...

    Active control studies of structurally transmitted engine vibration on commercial airplanes

    White, J.L. / Shipley, S.A. / Yantis, T.F. | Tema Archiv | 1994

    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. ...

    Dynamic modeling of a spot-welded car body component

    Carfagni, M. / Citti, P. / Preve, A. | Tema Archiv | 1994
    The aim of this work was to determine the optimal dynamic modeling criteria for molded components assembled with spot welding. To allow ...

    Optimization of dynamic testing of space manipulators

    Kujath, M.R. / Akpan, U.O. | Tema Archiv | 1994
    experiments. The constraints of space experiments combined with the sluggishness of the space mainipulators pose very strict requirements for ...

    A study on the vibration and interior noise characteristics of a passenger car

    Sung, M.H. / Lee, J.M. / Kim, S.H. et al. | Tema Archiv | 1994

    Prediction of vehicle interior noise using modal synthesis methods

    Wang, Yanping / Zheng, Muqiao | Tema Archiv | 1994
    conditions of the models, and has good agreements with its test results. The MSM can be consequently used for predicting the vehicle interior noise ...

    Experimental modal and principal field analysis of aircraft interior acoustics

    Auweraer, H. Van der / Otte, D. / Augusztinovicz, F. | Tema Archiv | 1994

    Modal sensitivities of automobile vehicle floor panels

    Cherng, J.G. / Akin, T. | Tema Archiv | 1994
    select proper dampers and bushings for a vehicle to eliminate or to reduce this structure borne noise is not an easy task. This paper presents a ...

    Laser processing of hazardous materials

    Smith, D. / Denney, P. | Tema Archiv | 1994
    fleets. Materials of most concern are asbestos, leaded and chromated paints, and polychlorinated biphenols (PCBs). Normal disposal methods for ...

    Optical fiber sensors for vehicle detection

    Meller, S. / Vries, M.J. de / Arya, V. et al. | Tema Archiv | 1995
    applications in industry for process control, and more recently for monitoring the health of advanced civil structures. Optical fiber sensors are ...

    Passive millimeter wave sensors for detection of buried mines

    Yujiri, L. / Hauss, B. / Shoucri, M. | Tema Archiv | 1995
    The detection of land mines and other ordnance on the battlefield has grown in importance with their increased use, not only for military ...

    Magnetic lateral guidance sensors for automated highways

    Stauffer, D. / Barrett, M. / Demma, N. et al. | Tema Archiv | 1995
    Automated highway systems will need sensors both for longitudinal guidance (intelligent speed control) and for lateral guidance relative to ...

    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. ...

    Impact of adverse weather on sensors for vehicle collision avoidance systems

    Everson, J.H. / Kopala, E. / Lazofson, L. et al. | Tema Archiv | 1995
    An in-vehicle imaging sensor is proposed for achieving lateral control to avoid single vehicle roadway departure crashes. This ...

    Adavanced laser-based device for motor vehicle lane position monitoring and steering assistance

    Bachalo, W.D. / Inenaga, A. / Schuler, C. | Tema Archiv | 1995
    , used as a research tool to monitor driving patterns, be required equipment for those previously convicted of driving under the influence, or ...

    System identification and vibration control for composite structures with embedded actuators

    Resch, M. / Berg, H. / Elspass, W.J. | Tema Archiv | 1995
    The active control of vibration using point actuators has received much attention especially for aircraft and aerospace structural ...

    Comparative study of non-intrusive traffic monitoring sensors

    Duckworth, G.L. / Frey, M.L. / Remer, C.E. et al. | Tema Archiv | 1995
    Traffic data collection studies and management systems require accurate and cost-effective sensors for roadway volume vehicle speed, and ...

    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 ...

    An integrated stereo-based approach to automatic vehicle guidance

    Weber, J. / Koller, D. / Luong, Q.T. et al. | Tema Archiv | 1995
    A new approach is proposed for vision based longitudinal and lateral vehicle control. The novel feature of this approach is the use of ...

    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 ...

Ergebnisse anzeigen
10 20

Suchergebnisse filtern