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  • Acoustics
  • Meteorology
  • 2000-2004
  • 1965-1969  (4)
  • 1925-1929  (5)
  • 1965  (4)
  • 1926  (5)
  • 1
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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
  • 2
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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
  • 3
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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
  • 4
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    Der Aufbau der Atmosphäre (1926)
    In:  Meteorologische Zeitschrift, Jena, Gustav Fischer, vol. 43, no. 3, pp. 427-430, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 1926
    Keywords: Earth model, also for more shallow analyses ! ; Meteorology
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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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    Significance of the Atmosphere and Aircraft Operations on Sonic-Boom Exposures (1965)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: The information of the paper is in the form of a status report on the state of knowledge of sonic-boom phenomena, dealing first with the pressure buildups in the transonic speed range and with the lateral extent of the pattern in steady flight for quiescent atmospheric conditions. There are also discussions of recent data from flight-test studies relating to atmospheric dynamic effects on the sonic-boom signatures, and finally, brief discussions of the significance of signature shape on the response of people and structures. The acceleration and lateral-spread phenomena appear to be fairly well understood and predictable for current and future aircraft. Variations in the sonic-boom signature as a result of the effects of the atmosphere can be expected during routine operations. From the data evaluated to date, very similar variations in pressure signatures are noted for both fighter and bomber aircraft. The greatest questions still exist in the area of community acceptance of sonic booms. A more definitive answer to the community-acceptance problem will have to await adequate flight experience with larger aircraft.
    Keywords: Acoustics
    Type: NASA Conference on Aircraft Operating Problems: A Compilation of the Papers Presented; 245-256
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    Preliminary Measurements of Take-Off and Landing Noise from a New Instrumented Range (1965)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: This paper describes the NASA noise-survey instrumentation system presently in use at Edwards Air Force Base, California, and presents preliminary noise data from an F-104 airplane. Also presented are noise measurements of the XB-70 and 707-131B airplanes obtained with essentially the same equipment at another location. The difference between measured noise levels for the XB-70 and 707 is illustrated and comparisons of perceived noise levels are made. The adequacy of noise predictions -Ls discussed briefly.
    Keywords: Acoustics
    Type: NASA Conference on Aircraft Operating Problems: A Compilation of the Papers Presented; 83-90
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Factors Relating to the Airport-Community Noise Problem (1965)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: Factors relating to the airport-community noise problem are discussed herein. The noise problems are associated with aircraft landing approaches, take-offs, and climbouts in communities near commercial airports. The main objectives are to identify the significant factors involved in the problem, to define some of their interrelationships, and to present recent related research information from NASA in-house and contract studies. Changes in the types of aircraft power plants, the aircraft operating procedures, and the community itself are all judged to be important; however, these changes should not be made without understanding the associated human-response implications.
    Keywords: Acoustics
    Type: NASA Conference on Aircraft Operating Problems: A Compilation of the Papers Presented; 73-81
    Format: text
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  • 9
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    Prediction of Airplane Sonic-Boom Pressure Fields (1965)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: This paper presents a discussion of the sensitivity of supersonic-transport design and operation to sonic-boom considerations and shows the necessity for a study of these problems early in the development program. Methods of predicting pressure signatures are outlined and examples of the correlation of these estimates with wind-tunnel and flight measurements are shown. Estimates of sonic-boom characteristics for a representative supersonic transport show that in the critical transonic acceleration portion of the flight, overpressures somewhat lower than estimated by the use of far-field assumptions may be expected. Promising design possibilities for the achievement of further overpressure reductions are explored.
    Keywords: Acoustics
    Type: NASA Conference on Aircraft Operating Problems: A Compilation of the Papers Presented; 235-244
    Format: text
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    NASA TECHNICAL REPORTS
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