1–50 von 179 Ergebnissen
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    Defect free spinel ceramics of high strength and high transparency

    Sepulveda, Juan L. / Loutfy, Raouf O. / Chang, Sekyung | Tema Archiv | 2009
    for armored vehicles, aircrafts, and missiles. The novel spinel material exhibits high optical and IR transparency in the 0.3 - 5.5 my m ...
    Verlag: American Ceramic Society (ACS) , Westerville

    Microstructural examination and quasi-static property determination of sintered armor grade SiC

    Demirbas, Memduh V. / Haber, Richard A. / Brennan, Raymond E. | Tema Archiv | 2009
    in a sintered armor SiC tile. A set of several tiles had been previously scanned by ultrasound and one tile from that set was selected for ...
    Verlag: American Ceramic Society (ACS) , Westerville

    Instrumented hertzian indentation study of two commerical silicon carbides

    Miller, H.T. / McCuiston, R.C. / LaSalvia, J.C. | Tema Archiv | 2009
    ballistic threats. Pressureless-sintered SiCs are attractive alternatives to hot-pressed variants for some particular applications based upon cost ...
    Verlag: American Ceramic Society (ACS) , Westerville

    A MEMS-based infrared emitter array for combat identification

    San, Haisheng / Chen, Xuyuan / Xu, Peng et al. | Tema Archiv | 2008
    decreased. In experiment, the surface temperature distribution of IR emitter arrays were measured by thermal imaging system, and the optical ...

    Damage quantification using attenuation based signal processing for health monitoring in carbon fiber composites

    Reynolds, W. / Chattopadhyay, A. | Tema Archiv | 2008
    conditions. In the current research, a structural health monitoring (SHM) and prognosis framework is being developed for heterogeneous material ...

    Damage detection and leakage alert of fiber composite wrapped tank for high pressure hydrogen storage

    Sun, Xiao-Yan / Huston, D.R. / Qin, Quan et al. | Tema Archiv | 2008
    Car manufactures are turning to high pressure hydrogen storage for on-broad power applications. Fiber-composite-wrapped high pressure ...

    Polarization measurements of automobile paints

    Goldstein, D.H. | Tema Archiv | 2008
    micrometer. Depolarization indices for all polarimetric measurements were calculated. ...

    Detection of disbonds in a honeycomb composite structure using guided waves

    Baid, H. / Banerjee, S. / Joshi, S. et al. | Tema Archiv | 2008

    Structural health monitoring of composites using integrated ultrasonic transducers

    Kobayashi, M. / Wu, K.T. / Song, L. et al. | Tema Archiv | 2008
    Two types of ultrasonic sensors are presented for structural health monitoring (SHM) and non-destructive testing (NDT) of graphite/epoxy ...

    High durability antireflection coatings for silicon and multispectral ZnS

    Joseph, S. / Marcovitch, O. / Yadin, Y. et al. | Tema Archiv | 2007
    both day and night. In order to achieve such capabilities, advanced electro-optical systems are being constantly developed and improved. These ...

    Feasibility of landmine detection using transgenic plants

    Deyholos, M. / Faust, A.A. / Miao, Minmin et al. | Tema Archiv | 2006

    A bioinspired vision chip architecture for collision detection in automotive applications

    Laviana, R. / Carranza, L. / Vargas, S. et al. | Tema Archiv | 2005
    This paper describes the architecture and retino-topic unit of a bio-inspired vision chip intended for automotive applications. The chip ...

    Operation of ionic polymer-metal composites in water

    Yim, W. / Kim, K.J. / Paquette, J.W. et al. | Tema Archiv | 2005
    The ionic polymer-metal composite (IPMC) for flexible hydrodynamic propulsor blades can provide many new opportunities in the naval ...

    Drop-test study of parachute textile with embedded fiber optic sensors

    Li, Min / Li, Yulin | Tema Archiv | 2005
    fiber Bragg grating (FBG) sensors are taken into the comparison between the optical and mechanical testing results. Drop test results from both ...

    Revolutionary optical sensor for physiological monitoring in the battlefield

    Kingsley, S.A. / Sriram, S. / Pollick, A. et al. | Tema Archiv | 2004
    SRICO has developed a revolutionary approach to physiological status monitoring using state-of-the-art optical chip technology. The ...

    A linear ion trap for biological agent detection and identification

    Griffin, M.T. / McLuckey, S.A. | Tema Archiv | 2004
    A novel linear ion trap (LIT) system for protein bio-marker identification that provides significant improvement in sensitivity and dynamic ...

    Estimating the backscatter spectral dependence and relative concentration for multiple aerosol materials from lidar data

    Warren, R.E. / Vanderbeek, R.G. | Tema Archiv | 2004
    section coefficients, backscatter in the case of aerosols and absorptivity for vapors, be known in advance. While this typically is a reasonable ...

    Soil moisture and electrical conductivity prediction and their implication for landmine detection technologies

    Katsube, T.J. / Keating, P.K. / McNairn, H. et al. | Tema Archiv | 2004
    Physical properties, such as soil moisture, magnetic susceptibility and electrical conductivity (EC) are sources of signal interference for ...

    Simultaneous monitoring of the corrosion activity and moisture inside aircraft lap joints

    Cooper, K.R. / Ma, Y. / Wikswo, J.P. et al. | Tema Archiv | 2004

    Design strength of optical glass

    Doyle, K.B. / Kahan, M.A. | Tema Archiv | 2003
    extremely conservative design approaches are typically used for optical elements made of glass. Determining a design allowable for glass elements is ...

    Concepts using optical MEMS array for ladar scene projection

    Smith, J.L. | Tema Archiv | 2003
    fiber optic cables. The concept calls for an optical MEMS (micro-electromechanical system) steerable micro-mirror array. IFOV's are a cluster of ...

    Subwavelength volume holographic grating in photopolymer for the liquid crystal display viewing angle compensation

    Lee, M.S.L. / Delboulbe, A. / Gomez, G. et al. | Tema Archiv | 2003
    interest for the direct view liquid crystal displays that suffer from a narrow viewing angle. In fact, by providing high birefringence, they ...

    Electroactive-polymer-based MEMS for aerospace and medical applications

    Xu, Tian-Bing / Su, Ji / Zhang, Qiming | Tema Archiv | 2003
    magneostrictive materials for electromechanical device applications due to their high strain, light weight, flexibility, and low cost. Electroactive ...

    Dynamic holographic interferometry with photorefractive crystals: review of applications and advanced techniques

    Georges, M.P. / Thizy, C. / Scauflaire, V.S. et al. | Tema Archiv | 2003
    destructive testing (defect detection), displacement metrology, vibration mode shape visualization, as well as a study for the use of photorefractive ...

    Applications of cold hibernated elastic memory (CHEM) structures

    Sokolowski, W.M. / Hayashi, S. | Tema Archiv | 2003
    volume, and low-cost self-deployable structures for space and commercial applications. The material technology called "cold hibernated elastic ...

    Fragility analysis of transportation networks

    Murachi, Y. / Orikowski, M.J. / Dong, Xuejiang et al. | Tema Archiv | 2003
    -earthquake traffic behavior in animation. This will assist emergency response professionals to gain pre-event insight for developing optimal ...

    Imaging ultrasonic sensor system SWISS completed 60000 simulated flight hours to check structural integrity of aircraft subcomponent

    Kress, K.P. / Baderschneider, H.J. / Guse, G. | Tema Archiv | 2003
    Many military platforms such as fighter aircraft are nowadays operated for several decades under sometimes varying missions. Additional ...

    Monitoring of the new Arsta Railway Bridge using traditional and fiber optic sensors

    Enckell-El Jemli, M. / Karoumi, R. / Lanaro, F. | Tema Archiv | 2003
    costs for reparation and maintenance and to ensure the safety of civil infrastructures, there is an increasing need in our society for health ...

    Vibration control of a gossamer toroidal structure using smart material actuators and sensors

    Jha, A.K. / Inman, D.J. | Tema Archiv | 2003
    Gossamer or inflatable structures have been a subject of renewed interest for space applications because of their lightweight, on-orbit ...

    Vibration and shape control of hinged light structures using electromagnetic forces

    Matsuzaki, Y. / Miyachi, S. / Sasaki, T. | Tema Archiv | 2003
    This paper describes a new electromagnetic device for vibration control of a light-weighted deployable/retractable structure which consists ...

    Neural network application in damage identification using multi-scale sensing data

    Studer, M. / Peters, K. | Tema Archiv | 2003
    different material scales make the identification of damage difficult with a single sensing device. On the other hand, for aerospace applications ...

    Semiconductor ultraviolet optical sources for biological agent detection

    Carrano, J.C. / Maltenfort, A.J. | Tema Archiv | 2002
    -to-warn' bio-sensors. Currently, DoD is developing a sub-system known as the Biological Aerosol Warning System (BAWS) for the Joint ...

    Polymer waveguides for 100 cm (40") optical backplanes

    Moisel, J. / Guttmann, J. / Huber, H.P. et al. | Tema Archiv | 2002
    Optical backplanes are attractive components for systems with high data rates between subsystems and a large number of interconnects. An ...

    Radiation qualification and testing of a large number of optical glasses used in the ESA fluid science laboratory onboard the columbus orbital Facility of the international space station

    Doyle, D.B. / Dewandre, T.M. / Claessens, D. et al. | Tema Archiv | 2002
    International Space Station (ISS) is a multi-user facility for the performance of microgravity research. It comprises a very complex optical bench ...

    Combined radiation damage, annealing, and ageing studies of InGaAsP/InP 1310 nm lasers for the CMS tracker optical links

    Gill, K.A. / Grabit, R. / Troska, J. et al. | Tema Archiv | 2002
    multi-quantum-well lasers, the type chosen for use in the CMS Tracker optical links. The radiation damage effects are compared for a variety of ...

    Interaction of micro-organisms (fungi and bacteria) with optical and electronic materials

    Kukhtarev, N.V. / Kukhtareva, T.V. / Jones, J. et al. | Tema Archiv | 2002
    for unattended and space-based optical and electronic systems. We have investigated the process of growth and distribution of fungal elements ...

    Measuring space radiation impact on the characteristics of optical glasses; measurement results and recommendations from testing a selected set of materials

    Fruit, M. / Gusarov, A.I. / Doyle, D.B. | Tema Archiv | 2002
    Radiation sensitivity of glass is a general concern for the designer of Space optical instruments. ASTRIUM, in cooperation with SCK-CEN ...

    Nonlinear optic polymer electro-optic modulators for space applications

    Grote, J.G. / Zetts, J.S. / Nelson, R.L. et al. | Tema Archiv | 2002
    passive polymers with various conductivities, both ionic and electronic, suitable for use as optical cladding layers in NLO polymer based opto ...

    Toward dynamic model-based prognostics for transmission gears

    Wang, Wenyi | Tema Archiv | 2002
    This paper presents a novel methodology for the diagnosis and prognosis of crucial gear faults, such as gear tooth fatigue cracking ...

    Smart suspension systems for bridge-friendly vehicles

    Chen, Yonghong / Tan, C.A. / Bergman, L.A. et al. | Tema Archiv | 2002
    traversing a bridge are examined in order to develop various designs of smart suspension systems for bridge-friendly vehicles. The bridge-vehicle ...

    20K-cryogenic-temperature satellite materials outgassing facility for ASTM-E1559 standard

    Bertrand, W.T. / Prebola, J.L. / Wood, B.E. | Tema Archiv | 2002
    This paper describes the development of a facility for material outgassing measurements using quartz crystal microbalances (QCMs) operating ...

    Thruster-plume-induced contamination measurements from the PIC and SPIFEX flight experiments

    Soares, C.E. / Barsamian, H. / Rauer, S. | Tema Archiv | 2002
    developed for the International Space Station (ISS). ...

    Investigating the use of ultrasonic guided waves for aging wire insulation assessment

    Anastasi, R.F. / Madaras, E.I. | Tema Archiv | 2002
    becomes brittle and cracks. This exposes the underlying conductive wire to the potential for short circuits and fire. The difficulty is that ...

    Model reduction and substructuring for computing responses of structures containing frequency-dependent viscoelastic materials

    Germes, S. / Van Herpe, F. | Tema Archiv | 2002
    systems, there is still a need for finite element models capable of predicting the frequency response of structures containing VEM. We address in ...

    Multi-element adjustable transducer arrays for the ultrasonic scanning of aging aircraft

    Komsky, I.N. | Tema Archiv | 2002
    airplane structures. Conventional techniques for crack or corrosion characterization are based on either echo-amplitude measurements or time-of ...

    Laser-driven vehicles - from inner-space to outer-space

    Yabe, T. / Phipps, C. / Aoki, K. et al. | Tema Archiv | 2002
    pulses of MJ laser can give sound speed to a 10 tons airplane. The concept can also be used for driving a micro-ship inside the human body and a ...

    Acoustic monitoring of first responder's physiology for health and performance surveillance

    Scanlon, M.V. | Tema Archiv | 2002
    , blood pressure, activity, and other parameters can be continuously monitored with acoustic sensors and transmitted for remote surveillance of ...

    Extraction of properties of condensed outgassed species by thermogravimetric analysis

    Simpson, T.R. / Hall, D.F. / Ternet, G.K. | Tema Archiv | 2002
    evaluator (ASCME). This paper provides fitted parameters for Langmuire evaporation models of contaminants from 15 materials based upon kinetic ...

    Multisensor analyzer detector (MSAD) for low cost chemical and aerosol detection and pattern fusion

    Swanson, D.C. / Merdes, D.W. / Lysak, D.B. et al. | Tema Archiv | 2002
    mobility spectrometry (IMS), surface acoustic wave (SAW) detection, flame photometric detection (FPD), and other principles are candidates for ...