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There are a total of 1342 record(s) matching your query.
Sorted by: Date Added To NTRS in Ascending order
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Radio observations of asteroids - Results and prospects
Author(s): Dickel, J. R.
Abstract: Radio observations of the asteroids can provide information on the thermal and dielectric properties of the surface materials and, because the radio emission arises somewhat below the surface, the data give some indication ...
NASA Center: NASA (non Center Specific) Publication Year: 1979
Added to NTRS: 2004-11-03
Accession Number: 80A24563; Document ID: 19800040393
Multi-parameter yield zone model for predicting spectrum crack growth
Author(s): Johnson, W. S.
Abstract: A phenomenological load interaction model referred to as the Multi-Parameter Yield Zone model is presented which accounts for crack growth retardation caused by previous overloads, acceleration due to current overloads, and ...
NASA Center: Langley Research Center Publication Year: 1981
Added to NTRS: 2004-11-03
Accession Number: 82A20510; Document ID: 19820036975
Opacified silica reusable surface insulation /RSI/ for thermal protection of the Space Shuttle Orbiter
Author(s): Goldstein, H. E.; Smith, M.; Stewart, D.; Leiser, D. B.
Abstract: A reusable surface insulation (RSI) material adopted for use on limited areas of the Orbiter's heat shield is described. The RSI is a rigid sintered fibrous silica material containing about 3 by weight of 1200-grit silicon ...
NASA Center: Ames Research Center Publication Year: 1978
Added to NTRS: 2004-11-03
Accession Number: 79A19448; Document ID: 19790035435
Radiative transfer theory for passive microwave remote sensing of random media
Author(s): Chuang, S. L.; Kong, J. A.
Abstract: The radiative transfer theory is applied to a random medium for the case of passive remote sensing. A general numerical solution with Gaussian quadrature method is studied. For a medium with laminar structure or a medium ...
NASA Center: NASA (non Center Specific) Publication Year: 1981
Added to NTRS: 2004-11-03
Accession Number: 82A11533; Document ID: 19820027998
Uranus
Abstract: The present publication discusses Uranus and its interior, atmosphere, rings, satellites, and magnetosphere. Attention is given to photochemistry and vertical mixing, spectroscopy and chemistry of the Uranian atmosphere, the ...
NASA Center: Jet Propulsion Laboratory Publication Year: 1991
Added to NTRS: 2004-11-03
Accession Number: 92A18701; Document ID: 19920036077
The dynamics of planetary rings
Author(s): Goldreich, P.; Tremaine, S.
Abstract: The physical processes that occur in planetary rings are discussed. The theoretical arguments leading to the conclusion that Saturn's rings are solid particles in nonuniform rotation are summarized, and the optical depth, ...
NASA Center: NASA (non Center Specific) Publication Year: 1982
Added to NTRS: 2004-11-03
Accession Number: 83A12185; Document ID: 19830030967
The analysis of the pilot's cognitive and decision processes
Author(s): Curry, R. E.
Abstract: Articles are presented on pilot performance in zero-visibility precision approach, failure detection by pilots during automatic landing, experiments in pilot decision-making during simulated low visibility approaches, a ...
NASA Center: NASA (non Center Specific) Publication Year: 1975
Added to NTRS: 2004-11-03
Accession Number: 76N11722; Document ID: 19760004634; Report Number: NASA-CR-145739
Aircraft maneuver optimization of reduced-order approximation
Author(s): Kelley, H. J.
Abstract: Review of recent work in recasting the energy type of approximation to aircraft flight in terms of singular perturbation theory and in extending this theory to three-dimensional maneuvers. Singular perturbations for ...
NASA Center: NASA (non Center Specific) Publication Year: 1973
Added to NTRS: 2004-11-03
Accession Number: 74A23092; Document ID: 19740040342
Solar wind interaction with comets - Lessons from Venus
Author(s): Russell, C. T.; Luhmann, J. G.; Elphic, R. C.; Neugebauer, M.
Abstract: Data on the solar wind interaction with Venus are examined for the purpose of comparison with similar processes that may occur in comets. Attention is given to bow shock, magnetosheath, ionopause, ionosphere, and magnetotail ...
NASA Center: Jet Propulsion Laboratory Publication Year: 1982
Added to NTRS: 2004-11-03
Accession Number: 83A13398; Document ID: 19830032180
Progressive Transmission and Compression of Images
Author(s): Kiely, A. B.
Abstract: We describe an image data compression strategy featuring progressive transmission. The method exploits subband coding and arithmetic coding for compression. We analyze the Laplacian probability density, which closely ...
NASA Center: Jet Propulsion Laboratory Publication Year: 1996
Added to NTRS: 2004-11-03
Document ID: 19980037437
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