+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + Collection + NASA Center + Publication Year + Subject + Availability Options Selected Navigations: Item/Media Type > Collected Works [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 1342 record(s) matching your query. Sorted by: Date Added To NTRS in Ascending order Prev 1 2 3 4 5 6 7 8 9 10 Next >> 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 Prev 1 2 3 4 5 6 7 8 9 10 Next >> + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007