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There are a total of 18934 record(s) matching your query.
Sorted by: Date Added To NTRS in Ascending order
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Image-Enhancement Aid For The Partially Sighted
Author(s): Lawton, T. A.; Gennery, D. B.
Abstract: Digital filtering enhances ability to read and to recognize objects. Possible to construct portable vision aid by combining miniature video equipment to observe scene and display images with very-large-scale integrated ...
NASA Center: Jet Propulsion Laboratory Publication Year: 1989
Added to NTRS: 2005-09-30
Accession Number: 89B10278; Document ID: 19890000278; Report Number: NPO-17307
Liquid-Crystal Light Valve Enhances Edges In Images
Author(s): Chao, Tien-Hsin; Liu, Hua-Kuang
Abstract: Experiments show liquid-crystal light valve (LCLV) exhibits operating mode in which it enhances edges in images projected on it. Operates in edge-enhancing mode (or in combination of edge-enhancing and normal modes) by ...
NASA Center: Jet Propulsion Laboratory Publication Year: 1991
Added to NTRS: 2005-09-30
Accession Number: 91B10144; Document ID: 19910000144; Report Number: NPO-17768
High strength, medium density molded foam
Author(s): Fender, J. R.
Abstract: Toluene diisocyanate-based polyurethane produces molded-to-size foam products. Formulation techniques optimize dimension stability, strength and moldability.
NASA Center: NASA (non Center Specific) Publication Year: 1972
Added to NTRS: 2005-09-30
Accession Number: 72B10235; Document ID: 19720000235; Report Number: AEC-10053
Cost Effectiveness of Hybrid Solar Powerplants
Author(s): Wen, L. C.; Steele, H. L.
Abstract: Report discusses cost effectiveness of high-temperature thermal storage system for representative parabolic dish solar powerplant. Economic viability of thermal storage system assesses; cost and performance projections made; ...
NASA Center: Jet Propulsion Laboratory Publication Year: 1983
Added to NTRS: 2005-09-30
Accession Number: 83B10149; Document ID: 19830000149; Report Number: NPO-15735
Dynamic, High-Temperature, Flexible Seals
Author(s): Steinetz, Bruce M.; Sirocky, Paul J.
Abstract: Dynamic, flexible ceramic seals developed for use at high temperatures in high-performance, variable-geometry, hypersonic airplane engines. Stacked ceramic wafers pressed against stationary sidewall by pressure in one or ...
NASA Center: Glenn Research Center Publication Year: 1992
Added to NTRS: 2005-09-30
Accession Number: 92B10173; Document ID: 19920000173; Report Number: LEW-14695
Analyzing Multirate-Sampled Systems
Author(s): Hendrix, N.
Abstract: New method available for monitoring stability of system on basis of data sampled at multiple rates--in particular, at two rates, one of which is twice frequency of other. Method is called Multirate Matrix Frequency Response ...
NASA Center: Marshall Space Flight Center Publication Year: 1982
Added to NTRS: 2005-09-30
Accession Number: 81B10264; Document ID: 19810000264; Report Number: MFS-25541
Clamp for detonating fuze
Author(s): Holderman, E. J.
Abstract: Quick acting clamp provides physical support for a closely confined detonating fuse in an application requiring removal and replacement at frequent intervals during test. It can be designed with a base of any required ...
NASA Center: NASA (non Center Specific) Publication Year: 1968
Added to NTRS: 2005-09-30
Accession Number: 68B10072; Document ID: 19680000072; Report Number: MFS-13399
A self-tuning filter
Author(s): Deboo, G. J.; Hedlund, R. C.
Abstract: Self-tuning filter automatically adjusts its center frequency to track signal frequency. This permits the use of a filter with a bandwidth smaller than the range of input signal frequencies.
NASA Center: NASA (non Center Specific) Publication Year: 1970
Added to NTRS: 2005-09-30
Accession Number: 70B10337; Document ID: 19700000325; Report Number: ARC-10264
Alternative Habitats For First Lunar Outpost
Author(s): Fowler, Charles R.; Imtiaz, Kauser S.; Vas, Irwin E.; Woodcock, Gordon R.
Abstract: Report describes investigation of alternative design concepts for habitable structures at outpost to be established on Moon. Beginning with baseline habitat concept derived from habitat module of Space Station Freedom, ...
NASA Center: Marshall Space Flight Center Publication Year: 1995
Added to NTRS: 2005-09-30
Accession Number: 95B10541; Document ID: 19950070362; Report Number: MFS-28953
Ionene treatment of surfaces stimulates cell growth
Author(s): Rembaum, A.; Ingram, M.; Schmink, A. S.; Rounds, D. E.
Abstract: Number of cells adhering to walls of container can be increased by chemically pretreating walls. Polyelectrolyte, ionene, gives more effective pretreatment than any currently used chemicals.
NASA Center: Jet Propulsion Laboratory Publication Year: 1975
Added to NTRS: 2005-09-30
Accession Number: 75B10121; Document ID: 19750000121; Report Number: NPO-13421
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