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  • 1
    Publication Date: 2019-05-24
    Description: Development of 560 GHz fourth harmonic mixer and 140 GHz third harmonic generator for use in radiometer
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-64356
    Format: application/pdf
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  • 2
    Publication Date: 2019-07-13
    Description: A NASA/ASEE Summer Faculty Fellowship Research Program was conducted to further the professional knowledge of qualified engineering and science faculty members, to stimulate an exchange of ideas between participants and NASA, to enrich and refresh the research and teaching activities of participants' institutions, and to contribute to the research objectives of the NASA Centers.
    Keywords: SOCIAL SCIENCES (GENERAL)
    Type: NASA-CR-162051 , NAS 1.26:162051 , Jun 01, 1982 - Aug 06, 1982; Huntsville, AL; United States
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  • 3
    Publication Date: 2019-07-13
    Description: Thirty-five technical reports contain results of investigations in information and electronic systems; materials and processing; systems dynamics; structures and propulsion; and space sciences. Ecology at KSC, satellite de-spin, and the X-ray source monitor were also studied.
    Keywords: SOCIAL SCIENCES (GENERAL)
    Type: NASA-CR-170942 , NAS 1.26:170942 , Jun 06, 1983 - Aug 12, 1983; Huntsville, AL; United States
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  • 4
    Publication Date: 2019-07-13
    Description: A NASA/ASEE Summer Faulty Fellowship Program was conducted at the Marshall Space Flight Center (MSFC). The basic objectives of the programs are: (1) to further the professional knowledge of qualified engineering and science faculty members; (2) to stimulate an exchange of ideas between participants and NASA; (3) to enrich and refresh the research and teaching activities of the participants' institutions; and (4) to contribute to the research objectives of the NASA Centers. The Faculty Fellows spent ten weeks at MSFC engaged in a research project compatible with their interests and background and worked in collaboration with a NASA/MSFC colleague. This document is a compilation of Fellows' reports on their research during the summer of 1984. Topics covered include: (1) data base management; (2) computational fluid dynamics; (3) space debris; (4) X-ray gratings; (5) atomic oxygen exposure; (6) protective coatings for SSME; (7) cryogenics; (8) thermal analysis measurements; (9) solar wind modelling; and (10) binary systems.
    Keywords: SOCIAL SCIENCES (GENERAL)
    Type: NASA-CR-171317 , NAS 1.26:171317 , 1984 NASA/ASEE Summer Faculty Fellowship Program; May 29, 1984 - Aug 03, 1984; Tuscaloosa, AL; United States
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  • 5
    Publication Date: 2019-07-13
    Description: A compilation of 40 technical reports on research conducted by participants in the 1985 NASA/ASEE Summer Faculty Fellowship Program at Marshall Space Flight Center (MSFC) is given. Weibull density functions, reliability analysis, directional solidification, space stations, jet stream, fracture mechanics, composite materials, orbital maneuvering vehicles, stellar winds and gamma ray bursts are among the topics discussed.
    Keywords: SOCIAL SCIENCES (GENERAL)
    Type: NASA-CR-178709 , NAS 1.26:178709 , Aug 02, 1985 - Aug 16, 1985; Huntsville, AL; United States
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  • 6
    Publication Date: 2019-07-12
    Description: A radiance value of a target pixel recorded by a remote sensor can be decomposed into three components: (1) attenuated target signature, (2) pure atmospheric radiation, and (3) the contribution made by the ground through the atmospheric scattering process. Given the meteorological and optical parameters of a layer-structured atmosphere, its transmittance and radiance distribution can be accurately calculated with a plane-parallel radiative transfer model. For a uniform surface, the ground contribution can be obtained by comparing radiances for an atmosphere over a black but nonemitting surface and the same atmosphere with an underlying ground of given albedo or temperature. For an inhomogeneous surface, the first two components remain the same as long as the surface is a plane. The third may be estimated using the locally averaged top-of-atmosphere radiance. An atmospheric point spread function is calculated by a Monte Carlo approach and is used for retrieving the ground signature through a deconvolution procedure.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Journal of Electromagnetic Waves and Applications (ISSN 0920-5071); 1; 4 19
    Format: text
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