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  • 1
    ISSN: 1432-072X
    Keywords: Candida maltosa ; C. tropicalis ; C. cloacae ; C. subtropicalis ; C. sake ; DNA Relatedness ; GC Contents ; Yeasts Hydrocarbon Utilization ; Serotogy of Yeasts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Selected yeasts classified as Candida sake van Uden et Buckley were examined for their physiological, morphological and immunological properties and their DNA relatedness. Candida maltosa Komagata, Nakase et Katsuya is herein recognized as a species separate from C. sake. Candida maltosa was distinguished from C. sake and from C. tropicalis by insignificant DNA reassociation. In addition, C. maltosa was distinguished from C. sake by its higher maximal growth temperature and lower guanine plus cytosine content of its DNA and from C. tropicalis by its failure to utilize soluble starch for growth and its resistance to cycloheximide. The species C. cloacae and C. subtropicalis are placed in synonymy with C. maltosa.
    Type of Medium: Electronic Resource
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  • 2
    Publication Date: 2019-06-27
    Description: A low density polyimide foam material was tested in an arc tunnel to determine its potential for heat shield application on aerospace vehicles. The results show that the material has some reuse potential at surface temperatures as high as 750 K. When a black refractory paint was applied to the surface of the material, the surface recession was negligible at 750 K. An analytical thermal conductivity was derived for this material which, combined with measured thermal property values, can be used to make preliminary design thickness calculations for heat shield applications.
    Keywords: NONMETALLIC MATERIALS
    Type: NASA-TP-1049 , L-11739
    Format: application/pdf
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  • 3
    Publication Date: 2019-06-27
    Description: Specimens of a cryogenic insulation, proposed for use on the space shuttle external tank, were tested in an arc tunnel over a range of heating rates, pressures, and enthalpies corresponding to the shuttle ascent environment. A regression analysis was used to correlate the test data. Correlation equations involving surface recession rate as a function of heating rate, pressure, and enthalpy were developed. These equations can be used to make total surface recession predictions for shuttle ascent flight environments.
    Keywords: NONMETALLIC MATERIALS
    Type: NASA-TM-X-3291 , L-10371
    Format: application/pdf
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