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  • Other Sources  (2)
  • 2020-2023
  • 1970-1974  (2)
  • 1945-1949
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  • 1
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    Unknown
    Lincos: An interplanetary language (1974)
    In:  CASI
    Details
    Publication Date: 2006-01-11
    Description: A language for cosmic contacts is envisioned that utilizes radio signals of different wavelengths as sounds to form words. These words are in most cases abbreviations of Latin words understood from their English and French cognates. The logistic syntax uses pauses for punctuation in a binary system; pairs of algebraic formulas are transmitted where in a such pair the second element is always derived from the first; between them is transmitted a word that is understood as -follows- by the listener. The concepts of difference in position, of motion, of space, and of mass can be mathematically described by this language.
    Keywords: MATHEMATICS
    Type: Inhabited Space, Pt. 2 (NASA-TT-F-820); p 111-127
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Scatter factor and reliability of aircraft structures (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The concept of time to first failure is utilized to perform a parameter study of scatter factors of aircraft structures. The Weibull distribution is used for estimation of characteristic and certifiable lives. Scatter factors for various Weibull-shaped parameters, fleet sizes and level of reliabilities are calculated. It is concluded that the currently used range of scatter factors (2 through 4) is too narrow for the estimation of a safe life and that a safe and economical design for structural materials with shape parameters less than 2 does not seem feasible except for very small fleet sizes and low levels of reliability.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-2100
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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