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Technology Takes a Front Seat in Automakers’ Latest Models

While the latest news surrounding the U.S. auto industry continues to be focused on slumping sales and production cutbacks, automakers continue to turn out cars that highlight the latest technologies in the areas of safety, engine efficiency and performance, and alternative fuels. The U.S. “Big Three” — Ford, General Motors, and DaimlerChrysler — along with Toyota, Honda, and other Japanese automakers, are introducing more models with hybrid or alternative-fuel engines, and safety features that enable parents to track their teenage drivers and cars to talk to each other.

Posted in: Articles

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Elastic Memory Composite Hinges Tested on Shuttle

TEMBO® Elastic Memory Composite Hinges (EMCH) Composite Technology Development (CTD) Lafayette, CO 303-664-0394 www.ctd-materials.com Elastic Memory Composite Hinges (EMCH) were developed by CTD for deploying solar arrays, communications, and optical systems in space. They are designed to drive and dampen the deployment of a structure and hold the structure firmly at the end of deployment with no dead band. Combining carbon fiber reinforcement and shape-memory polymers, the hinges are constructed of TEMBO® composites, which replace complex mechanical deployment systems with lighter ones.

Posted in: Application Briefs

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Flight Dynamics Software Supports NASA Mission to Measure Carbon Dioxide

focusLEO Low-Earth Orbit (LEO) flight dynamics software GMV Rockville, MD 301-926-0119 www.gmv.com The Orbiting Carbon Observatory (OCO), managed by NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, CA, is a mission to measure carbon dioxide in the Earth’s atmosphere. Orbital Sciences Corp. of Dulles, VA, will provide the OCO project’s spacecraft and real-time mission operations.

Posted in: Application Briefs

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Mobile Collection and Automated Interpretation of EEG Data

Diagnoses could be performed while subjects engaged in ordinary activities. A system that would comprise mobile and stationary electronic hardware and software subsystems has been proposed for collection and automated interpretation of electroencephalo- graphic (EEG) data from subjects in everyday activities in a variety of environments. By enabling collection of EEG data from mobile subjects engaged in ordinary activities (in contradistinction to collection from immobilized subjects in clinical settings), the system would expand the range of options and capabilities for performing diagnoses.

Posted in: Bio-Medical, Briefs, TSP

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Simplified Generation of High-Angular-Momentum Light Beams

Inherent properties of a WGM resonator and optical fiber are exploited. A simplified method of generating a beam of light having a relatively high value of angular momentum (see figure) involves the use of a compact apparatus consisting mainly of a laser, a whispering gallery mode (WGM) resonator, and optical fibers. The method also can be used to generate a Bessel beam. (“Bessel beam” denotes a member of a class of non-diffracting beams, so named because their amplitudes are proportional to Bessel functions of the radii from their central axes. High-order Bessel beams can have high values of angular momentum.)

Posted in: Briefs, TSP

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Complex Type-II Interband Cascade MQW Photodetectors

Multiple active subregions, each optimized for a different color, would enable multicolor operation. Multiple-quantum-well (MQW) photodetectors of a proposed type would contain active regions comprising multiple superlattice subregions. These devices would have complex structures: The superlattice of each subregion would be designed for enhanced absorption of photons in a desired wavelength band (typically in the infrared) and multiple subregions of different design would be cascaded for multicolor operation.

Posted in: Briefs, TSP

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Interferometric Quantum-Nondemolition Single-Photon Detectors

These detectors would function independently of frequency. Two interferometric quantum-nondemolition (QND) devices have been proposed: (1) a polarization- independent device and (2) a polarization- preserving device. The prolarization- independent device works on an input state of up to two photons, whereas the polarization- preserving device works on a superposition of vacuum and single-photon states. The overall function of the device would be to probabilistically generate a unique detector output only when its input electromagnetic mode was populated by a single photon, in which case its output mode would also be populated by a single photon.

Posted in: Briefs, TSP

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