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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Antenna pattern recording system has a discretionary signal level monitor which senses a specified minimum level occurring between sampling intervals. This enables RF power and percent coverage to be calculated more accurately.
Scanning method involves separation of scanning capability into two independent degrees of freedom. One degree of freedom corresponds to azimuthal scanning and other to elevation scanning on spiral coordinate axes. Scanning of both prime-feed and mirrored patterns is accomplished with reduction of mechanical vibration damage to large antennas.
Mathematical programming methods of pattern classification
Electron precipitation patterns and their relation to substorm increases in electrons at synchronous orbit
Pattern recognition employed to classify EEG
Motility and differential adhesion for cell sorting and morphogenesis of real biological patterns
Computer program for calculating scattered electromagnetic field patterns from asymmetrical reflectors
Design of steerable satellite antenna with beam pattern sensing system
Producing dynamic distortion patterns at inlets of air-breathing engines
On-line handwritten alphanumeric character recognition system and learning algorithm for multiclass pattern classification
X ray observations of two phase flow patterns in metallic, forced flow mercury boiler
Grove patterns on ablated surfaces of Teflon 8-foot high temperature structures tunnel
Lateral organizational patterns in Apollo mission planning activities in research and development
Verification of entry monitor system line patterns for Apollo Project
Radiation pattern calculations for ATS 6 48-panel deployable reflector antenna
Soil patterns observed by aerial radar photography
Equivalent blackbody temperature and reflectance patterns of model clouds computed by changing radiometer field of view
Pattern recognition concepts applied to synthesis of aircraft approach progress monitor as adjunct to pilot decision process, discussing feasibility experiments