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  • Polymer and Materials Science  (2)
  • LAUNCH VEHICLES AND SPACE VEHICLES  (1)
  • 1990-1994  (3)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Editorial (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Advanced Materials for Optics and Electronics 2 (1993), S. 105-105 
    Details
    ISSN: 1057-9257
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/amo.860020302
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Characterization of ZnS grown by metal-organic chemical vapour deposition on GaAs(100) using t-butyl mercaptan and dimethylzinc (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Advanced Materials for Optics and Electronics 1 (1992), S. 43-46 
    Details
    ISSN: 1057-9257
    Keywords: Zinc sulphide ; MOCVD growth ; t-Butyl mercaptan ; Dimethylzinc ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: ZnS has been grown on GaAs(100) substrates by atmospheric pressure metal-organic chemical vapour deposition (MOCVD) using dimethylzinc (DMZn) and t-butyl mercaptan (t-BuSH). The effects of the reactant gas phase molar ratio and the growth temperature on the characteristics of the material grown have been investigated. The structural quality of the layer is demonstrated by X-ray rocking curve half-widths of less than 300 arcsec for the epilayers. There is little significant pre-reaction and the layers are of excellent surface morphology and layer uniformity.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/amo.860010108
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Unknown
    Spectral representation of high-frequency Space Shuttle data (1994)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: High frequency Space Shuttle liftoff data are treated by autoregressive (AR) and autoregressive-moving-average (ARMA) digital algorithms. These algorithms provide useful information on the spectral densities of the data. Further, they yield spectral models, which lend themeselves to incorporation into the concept of the random response spectrum. This concept yields a reasonably smooth power spectrum for the design of structural and mechanical systems when the available data bank is limited. Due to the nonstationary of the liftoff event, the pertinent data are split into three slices. Each of the slices is associated with a rather distinguished phase of the liftoff event, in which stationarity can be expected. The presented results are preliminary in nature; they aim to call attention to the availability of the discussed concepts and to the need to augment the Space Shuttle data bank as more flights are completed.
    Keywords: LAUNCH VEHICLES AND SPACE VEHICLES
    Type: PAPER-4962 , Journal of Aerospace Engineering (ISSN 0893-1321); 7; 3; p. 315-327
    Format: text
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    NASA TECHNICAL REPORTS
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