Search Results

1

Measured and calculated transmission losses of sound waves through a helium layer /

by Norum, Thomas D.
Washington, D.C. : [Springfield, Va.] : National Aeronautics and Space Administration ; [For sale by the National Technical Information Service], 1973

Government Document Book

2

Contribution of tonal components to the overall loudness, annoyance, and noisiness of noise : relation between single tones and noise spectral shape /

by Hellman, Rhona P.
Washington, D.C. : Springfield, Va. : National Aeronautics and Space Administration, Scientific and Technical Information Branch ; For sale by the National Technical Information Service, 1985

Government Document Book

3

Investigation of responsivity and noise in a direct-coupled photodetector-preamplifier for facsimile cameras /

by Kelly, W. Lane
Washington, D.C. : [Springfield, Va.] : National Aeronautics and Space Administration ; [For sale by the National Technical Information Service], 1973

Government Document Book

4

Effects of temperature on noise of bypass jets as measured in the Langley noise research facility /

by Kantarges, George T.
Washington, D.C. : National Aeronautics and Space Administration, 1964

Government Document Book

5

Analytical properties of noise generating mechanisms in a supersonic jet exhaust flow /

by Pao, S. Paul
Washington, D.C. : Springfield, VA : National Aeronautics and Space Administration ; Available from the National Technical Information Service, 1971

Government Document Book

6

Non-engine aerodynamic noise investigation of a large aircraft /

by Gibson, J. S. (John Sevier), 1934-
Washington, D.C. : [Springfield, Va.] : National Aeronautics and Space Administration ; [For sale by the National Technical Information Service], 1974

Government Document Book

7

Noise and wake structure measurements in a subsonic tip speed fan /

Washington, D.C. : [Springfield, Va.] : National Aeronautics and Space Administration ; [For sale by the National Technical Information Service], 1973

Government Document Book

8

Further analysis of broadband noise measurements for a rotating blade operating with and without its shed wake blown downstream /

by Scheiman, James
Washington, D.C. : [Springfield, Va.] : National Aeronautics and Space Administration ; [For sale by the National Technical Information Service], 1974

Government Document Book

9

Study of noise sources in a subsonic fan using measured blade pressures and acoustic theory /

by Hanson, Donald B.
Washington, D.C. : [Springfield, Va.] : National Aeronautics and Space Administration ; [For sale by the National Technical Information Service], 1975

Government Document Book

10

Judgment tests of flyover noise from various aircraft /

by Kryter, Karl D.
Washington, D.C. : National Aeronautics and Space Administration, 1970

Book

11

Wake geometry effects on rotor blade-vortex interaction noise directivity /

Washington, D.C. : Springfield, Va. : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; For sale by the National Technical Information Service, 1990

Government Document Book

12

Noise characteristics of jet flap type exhaust flows /

by Schrecker, G. O.
Washington, D.C. : [Springfield, Va.] : National Aeronautics and Space Administration ; [For sale by the National Technical Information Service], 1974

Government Document Book

13

Study and development of turbofan nacelle modifications to minimize fan-compressor noise radiation.

Washington : [for sale by the National Technical Information Service, Springfield, Va.], National Aeronautics and Space Administration ; 1971

Government Document Book

14

Design of sidewall treatment for cabin noise control of a twin engine turboprop aircraft /

by Vaicaitis, R.
Hampton, Va. : [Springfield, Va.] : National Aeronautics and Space Administration, Langley Research Center ; [For sale by the National Technical Information Service], 1983

Government Document Book

15

Description of Langley low-frequency noise facility and study of human response to noise frequencies below 50 cps /

by Edge, Philip M.
Washington, D.C. : Springfield, Va. : National Aeronautics and Space Administration ; For sale by the Clearinghouse for Federal Scientific and Technical Information, 1966

Government Document Book

16

Structure-borne noise estimates for the PTA aircraft /

by Unruh, James F.
Washington, D.C. : Springfield, Va. : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; For sale by the National Technical Information Service, 1990

Government Document Book

17

Measurements of farfield sound generation from a flow-excited cavity /

by Block, P. J. W.
Washington, D.C. : [Springfield, Va.] : National Aeronautics and Space Administration ; [For sale by the National Technical Information Service], 1975

Government Document Book

18

Reduction of acoustic disturbances in the test section of supersonic wind tunnels by laminarizing their nozzle and test section wall boundary layers by means of suction /

by Pfenninger, W.
Washington, D.C. : [Springfield, Va.] : National Aeronautics and Space Administration ; [For sale by the National Technical Information Service], 1974

Government Document Book

19

Error analysis of input-noise-temperature measurements of low-noise amplifiers /

by Blume, Hans-Juergen C.
Washington, D.C. : Springfield, Va. : National Aeronautics and Space Administration ; For sale by the Clearinghouse for Federal Scientific and Technical Information, 1969

Government Document Book

20

Analytic studies of sound pressures inside the duct of ducted propellers /

by Drischler, Joseph A.
Washington : National Aeronautics and Space Administration : [For sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Va.], 1971

Government Document Book

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