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  • COMMUNICATIONS AND RADAR  (2)
  • Coulomb  (1)
  • 1985-1989  (3)
  • 1985  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Thermodynamics for Coulomb systems: A problem at vanishing particle densities (1985)
    Springer
    Journal of statistical physics 41 (1985), S. 975-1013 
    Details
    ISSN: 1572-9613
    Keywords: Coulomb ; thermodynamics ; quantum statistical mechanics ; partition function
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In this paper I combine techniques recently developed by Charles Fefferman with the well-known methods of Joel Lebowitz and Elliott Lieb to resolve some technical problems left unsettled by Lebowitz and Lieb's fundamental 1972 paper “The constitution of matter: Existence of thermodynamics for systems composed of electrons and nuclei.”
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01010012
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Subreflector Focusing Techniques Applied to New DSS-15 and DSS-45 34-meter Antennas (1985)
    In:  CASI
    Details
    Publication Date: 2014-09-18
    Description: An improved technique to determine the subreflector translations required to properly focus a Cassegrainian antenna, under gravity loading, at a full range of elevation angles, is presented. This technique is applied to the 34-m antenna configuration installed at stations DSS-15 (Goldstone, California) and DSS-45 (Australia). The subreflector lateral and axial translations, to be stored into the antenna-control systems, are computed and tabulated. The relationships that govern the main parameters are also presented for future subreflector focusing analysis under wind and thermal loadings.
    Keywords: COMMUNICATIONS AND RADAR
    Type: The Telecommun. and Data Acquisition Rept.; p 83-90
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Design Procedure for the New 70-meter Antenna Subreflector Positioner (1985)
    In:  CASI
    Details
    Publication Date: 2014-09-18
    Description: Design procedures are developed for determining Cassegrain type antenna subreflector positioner strength and displacements under wind and gravity loading conditions. The procedures are applied to the JPL 70-m antenna subreflector design, and the resulting design details are presented. The generalized analysis can be adapted to other antenna and subreflector-positioners. It is shown that the new design meets the strength and displacements criteria under worst case loading.
    Keywords: COMMUNICATIONS AND RADAR
    Type: The Telecommun. and Data Acquisition Rept.; p 68-82
    Format: text
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    NASA TECHNICAL REPORTS
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