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  1. 1
    On the long range propagation of sound over irregular terrain /

    On the long range propagation of sound over irregular terrain / by Howe, M. S.

    Published 1984
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  2. 2
    Operational evaluation of a propeller test stand in the quiet flow facility at Langley Research Center /

    Operational evaluation of a propeller test stand in the quiet flow facility at Langley Research Center / by Block, P. J. W.

    Published 1982
    “…National Aeronautics and Space Administration, Scientific …”
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  3. 3
    Forward acoustic performance of a model turbofan designed for a high specific flow (QF-14) /

    Forward acoustic performance of a model turbofan designed for a high specific flow (QF-14) / by Lucas, James G.

    Published 1982
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  4. 4
    Noise transmission loss of aircraft panels using acoustic intensity methods /

    Noise transmission loss of aircraft panels using acoustic intensity methods / by McGary, Michael C.

    Published 1982
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  5. 5
    Power cepstrum technique with application to model helicopter acoustic data

    Power cepstrum technique with application to model helicopter acoustic data by Martin, R. M. (Ruth McVoy), 1956-

    Published 1986
    “…National Aeronautics and Space Administration, Scientific …”
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  6. 6
    New technique for experimental generation of two-dimensional blade-vortex interaction at low Reynolds numbers

    New technique for experimental generation of two-dimensional blade-vortex interaction at low Reynolds numbers by Booth, Earl R.

    Published 1986
    “…National Aeronautics and Space Administration, Scientific …”
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  7. 7
    Pressure probe and hot-film probe responses to acoustic excitation in mean flow

    Pressure probe and hot-film probe responses to acoustic excitation in mean flow by Parrott, Tony L.

    Published 1986
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  8. 8
    Evaluation of helicopter noise due to blade-vortex interaction for five tip configurations /

    Evaluation of helicopter noise due to blade-vortex interaction for five tip configurations / by Hoad, Danny R.

    Published 1979
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  9. 9
    A method for predicting the noise levels of coannular jets with inverted velocity profiles /

    A method for predicting the noise levels of coannular jets with inverted velocity profiles / by Russel, J. W.

    Published 1979
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  10. 10
    Experimental study of acoustic loads on upper-surface-blown STOL airplane configuration /

    Experimental study of acoustic loads on upper-surface-blown STOL airplane configuration / by Willis, Conrad M.

    Published 1979
    “…National Aeronautics and Space Administration, Scientific …”
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  11. 11
    Effect of grazing flow on the acoustic impendance of Helmholty resonators consisting of single and clustered orifices /

    Effect of grazing flow on the acoustic impendance of Helmholty resonators consisting of single and clustered orifices / by Hersh, Alan S.

    Published 1979
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  12. 12
    The use of coherence functions to determine dynamic excitation sources on launch vehicle payloads /

    The use of coherence functions to determine dynamic excitation sources on launch vehicle payloads / by Barrett, Stanley, 1933-

    Published 1979
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  13. 13
    NASA progress in aircraft noise prediction /

    NASA progress in aircraft noise prediction / by Raney, John P.

    Published 1981
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  14. 14
    Reduction of high-speed impulsive noise by blade planform modification of a model helicopter rotor /

    Reduction of high-speed impulsive noise by blade planform modification of a model helicopter rotor / by Conner, David A. (David Alan), 1956-

    Published 1982
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  15. 15
    Comparison of foward flight effects theory of A. Michalke and U. Michel with measured data /

    Comparison of foward flight effects theory of A. Michalke and U. Michel with measured data / by Rawls, John W.

    Published 1983
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  16. 16
    Comparison of measured and calculated mode redistribution associated with spinning mode transmission through circumferentially segmented lined ducts /

    Comparison of measured and calculated mode redistribution associated with spinning mode transmission through circumferentially segmented lined ducts / by Parrott, Tony L.

    Published 1983
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  17. 17
    Stochastic analysis of spectral broadening by a free turbulent shear layer

    Stochastic analysis of spectral broadening by a free turbulent shear layer by Hardin, Jay C.

    Published 1981
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  18. 18
    Aeroacoustic performance of an externally blown flap configuration with several flap noise suppression devices /

    Aeroacoustic performance of an externally blown flap configuration with several flap noise suppression devices / by McKinzie, Daniel J.

    Published 1982
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  19. 19
    Flight test of a pure-tone acoustic source /

    Flight test of a pure-tone acoustic source / by Mueller, Arnold W.

    Published 1981
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  20. 20
    Nonlinear theory of shocked sound propagation in a nearly choked duct flow /

    Nonlinear theory of shocked sound propagation in a nearly choked duct flow / by Myers, M. K.

    Published 1982
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