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  • Acoustics
  • 2020-2024
  • 2000-2004
  • 1980-1984
  • 1965-1969  (3)
  • 1925-1929  (4)
  • 1968  (3)
  • 1926  (4)
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  • 2020-2024
  • 2000-2004
  • 1980-1984
  • 1965-1969  (3)
  • 1925-1929  (4)
Year
  • 1
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    Synthesis of a layered medium from its acoustic transmission response (1968)
    In:  Geophysics, London, Institution of Mining and Metallurgy, vol. 33, no. 1-2, pp. 264, pp. 1869, (ISBN: 0-12-018847-3)
    Details
    Publication Date: 1968
    Keywords: Seismics (controlled source seismology) ; Acoustics ; Layers
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Die Geschwindigkeit des Schalls in der Atmosphäre (1926)
    In:  Physikalische Zeitschrift, Jena, Gustav Fischer, vol. 27, no. 3, pp. 84-86, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1926
    Keywords: Meteorology ; Acoustics
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    Die Entstehung der anomalen Schallzonen bei Explosionen (1926)
    In:  Zeitschrift für Geophysik, Jena, Gustav Fischer, vol. 2, no. 3, pp. 260-266, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1926
    Keywords: Waves ; Acoustics
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    BIBLIOGRAPHY SEISMOLOGY
  • 4
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    Über die Ausbreitung des Schalls in der Atmosphäre (1926)
    In:  Die Naturwissenschaften, Jena, Gustav Fischer, vol. 14, no. 3, pp. 338-342, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1926
    Keywords: Waves ; Meteorology ; Acoustics
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    BIBLIOGRAPHY SEISMOLOGY
  • 5
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    Die Schallgeschwindigkeit in den untersten Schichten der Atmosphäre (1926)
    In:  Zeitschrift für Geophysik, Jena, Gustav Fischer, vol. 2, no. 3, pp. 101-106, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1926
    Keywords: Meteorology ; Acoustics
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    BIBLIOGRAPHY SEISMOLOGY
  • 6
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    Briefing on Sonic Boom and Aircraft Noise (1968)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: This document is a presentation for a NAS-NRC committee on the SuperSonic Transport (SST) sonic boom. It consists of copies of the slides presented during the briefing. The topics covered in reference to Sonic Booms are: the result of sonic boom results on generation and propagation, the atmospheric effects, flight research and laboratory research and prediction theory developments, the structural responses, seismic responses and simulation and human factors from the recent research on the effects of sonic booms, Domestic SST, and evaluation of certain minimum boom concepts from advanced configuration studies. The topics covered in the aircraft noise section are studies on compressor noise reduction, acoustic treatment of nacelle ducts, some technical problems of airplane certification and studies relating to subjective responses.
    Keywords: Acoustics
    Type: Apr 15, 1968; Hampton, VA; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    Noise Considerations for V/STOL Transports (1968)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Noise consideration may well be as important a factor in future aircraft concept selection as such economic factors as operating cost and profitability. The impact of noise on some of the design and operational aspects of future V/STOL transports is examined in detail, including consideration of configuration, attitude-control system, lift system, and terminal flight pattern. Extended vertical rise of VTOL aircraft as a method of limiting the intense noise exposure to the terminal area is shown to be only partially effective as well as costly. Comparisons are made of noise contours for conceptual V/STOL transports for several PNdB criteria. The variation in extent of affected area with configuration and criterion emphasizes the importance of establishing an "acceptable" noise level for "city-center" operation.
    Keywords: Acoustics
    Type: AIAA Paper 68-194 , Aircraft Design for 1980 Operations; Feb 12, 1968 - Feb 14, 1968; Washington, DC; United States
    Format: text
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    NASA TECHNICAL REPORTS
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