| 1. |
Some Problems for Postwar Musical Acoustics |
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The Journal of the Acoustical Society of America,
Volume 16,
Issue 2,
1944,
Page 103-107
Robert W. Young,
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ISSN:0001-4966
DOI:10.1121/1.1916268
出版商:Acoustical Society of America
年代:1944
数据来源: AIP
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| 2. |
A Clinical Comparison of Air and Bone Conduction Hearing Aids in Cases of Conductive Impairment of Hearing |
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The Journal of the Acoustical Society of America,
Volume 16,
Issue 2,
1944,
Page 108-112
S. R. Silverman,
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PDF (512KB)
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ISSN:0001-4966
DOI:10.1121/1.1916269
出版商:Acoustical Society of America
年代:1944
数据来源: AIP
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| 3. |
Young's Modulus of Elasticity of Fibers and Films by Sound Velocity Measurements |
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The Journal of the Acoustical Society of America,
Volume 16,
Issue 2,
1944,
Page 113-119
J. W. Ballou,
S. Silverman,
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摘要:
A method for measuring the modulus of elasticity of fibers and films by sonic means is described and the results of an exploratory study of the modulus in various natural and synthetic fibers and films are given. The method is based on the equation for the propagation of longitudinal waves in elastic materials, which expresses the velocity of propagation in terms of the elastic modulus and density of the medium. The procedure involves measuring the sound velocity and calculating the modulus, using the proper density value. The modulus so calculated is characteristic of a dynamic, short period measurement, since a sound frequency of approximately 10 kilocycles per second was used. The range of moduli found was from 1×1010to 50×1010dynes per square centimeter. Correlations of moduli with other physical properties are given.
ISSN:0001-4966
DOI:10.1121/1.1916270
出版商:Acoustical Society of America
年代:1944
数据来源: AIP
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| 4. |
The Velocity of Sound in Vapors |
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The Journal of the Acoustical Society of America,
Volume 16,
Issue 2,
1944,
Page 120-122
K. Matta,
M. Mokhtar,
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摘要:
The study of sound propagation in gases has revealed useful data concerning molecular behavior. Vapors, with little known about their absorption and dispersion to sound at audible frequencies, provide a natural field for extending such studies. In the present investigation, a form of Kundt's tube is employed in which a hot wire records the amplitude in the stationary wave system. It is calibrated by the use of dry air and of oxygen. The results obtained for the velocity of sound are in good agreement with those determined by other methods.
ISSN:0001-4966
DOI:10.1121/1.1916271
出版商:Acoustical Society of America
年代:1944
数据来源: AIP
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| 5. |
The Rayleigh Disk as a Laboratory Instrument |
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The Journal of the Acoustical Society of America,
Volume 16,
Issue 2,
1944,
Page 123-125
H. Hewell Roseberry,
W. Conley Smith,
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ISSN:0001-4966
DOI:10.1121/1.1916272
出版商:Acoustical Society of America
年代:1944
数据来源: AIP
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| 6. |
Erratum: Practical Hearing Aid Measurements |
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The Journal of the Acoustical Society of America,
Volume 16,
Issue 2,
1944,
Page 125-125
R. W. Carlisle,
A. B. Mundel,
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ISSN:0001-4966
DOI:10.1121/1.1916273
出版商:Acoustical Society of America
年代:1944
数据来源: AIP
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| 7. |
Letter to the Editor |
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The Journal of the Acoustical Society of America,
Volume 16,
Issue 2,
1944,
Page 126-126
Mayer B. A. Schier,
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PDF (118KB)
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ISSN:0001-4966
DOI:10.1121/1.1916274
出版商:Acoustical Society of America
年代:1944
数据来源: AIP
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