Relationships between the Velocity of Sound and Other Physical Properties of Liquids

1945 ◽  
Vol 49 (5) ◽  
pp. 428-436 ◽  
Author(s):  
R. T. Lagemann ◽  
W. S. Dunbar
Keyword(s):  
Physical Properties ◽  
Velocity Of Sound

scholarly journals Ultrasonic Properties of Plastically Deformed Ice

1975 ◽  
Vol 15 (73) ◽  
pp. 161-169 ◽  
Author(s):  
J. Tatibouet ◽  
R. Vassoille ◽  
J. Perez
Keyword(s):  
Plastic Deformation ◽  
Physical Properties ◽  
Sound Velocity ◽  
Single Crystals ◽  
Stress Waves ◽  
Ultrasonic Waves ◽  
Velocity Of Sound ◽  
Propagation Characteristics ◽  
Ultrasonic Properties ◽  
Crystalline Materials

AbstractMany authors have used propagation of ultrasonic waves in ice for glaciological studies. This propagation is characterized by the velocity of sound and by the attenuation of stress waves. In crystalline materials, these two characteristics depend on structural slate. In particular plastic deformation gives velocity and attenuation variations.We have measured the sound velocity and attenuation of ultrasonic waves in strained specimens of ice (single crystals and polycrystals). These measurements done between 100 and 273 K at a frequency of 5 MHz show that plastic deformation leads to an increase of attenuation arid an increase of velocity. Annealing treatments at 271 K cause recovery of propagation characteristics. The variation in attenuation can be interpreted by the theory of dislocations and this interpretation is supported by our data on the influence of frequency on this increase of attenuation induced by plastic deformation, but the theory of dislocations implies a decrease of modulus, i.e. of velocity, hence we must postulate that an added phenomenon screens the effect of dislocations. That phenomenon could be connected with ageing effects observed on different physical properties of ire and may be due to modification of protonic arrangement or creation of interstitials during plastic deformation. Thus our experiments show that it is necessary to be careful in using results determined from the propagation of ultrasonic waves in ice.

VII. The influence of stress and strain on the physical properties of matter. Part I. Elasticity— continued . The velocity of sound in metals, and a comparison of their moduli of torsional and longitudinal elasticities as determined by statical and kinetical methods

1887 ◽  
Vol 42 (251-257) ◽  
pp. 362-364
Keyword(s):  
Physical Properties ◽  
Stress And Strain ◽  
Velocity Of Sound

The principal object of the investigation was to ascertain whether the values of the moduli of torsional and longitudinal elasticities, as determined by statical methods, would be the same as when determined by kinetical methods, provided the deformations produced were very small.

scholarly journals The influence of strees and strain on the physical properties of matter. Part I. Elasticity— continued . The velocity of sound in metals and a comparison of their moduli of longitudinal and torsional elasticities as datermined by statical and kinetical methods

1888 ◽  
Vol 43 (258-265) ◽  
pp. 88-108
Keyword(s):  
Physical Properties ◽  
The Other ◽  
Velocity Of Sound ◽  
Heating And Cooling ◽  
Transverse Vibrations ◽  
Cooling Effects

We owe to Wertheim a series of carefully executed experiments on the longitudinal elasticity of metals both by statical extension and by longitudinal and transverse vibrations. Prom these researches it would appear that the values of the moduli of longitudinal elasticity as determined for several metals by the first of these three methods are, as might be expected, less than those obtained by the other two. The differences, however, are very much greater than can be accounted for by the heating and cooling effects of contraction and elongation, and the author has already pointed out what he believes to have been in a great measure the cause of these discrepancies.

scholarly journals Ultrasonic Properties of Plastically Deformed Ice

1975 ◽  
Vol 15 (73) ◽  
pp. 161-169
Author(s):  
J. Tatibouet ◽  
R. Vassoille ◽  
J. Perez
Keyword(s):  
Plastic Deformation ◽  
Physical Properties ◽  
Sound Velocity ◽  
Single Crystals ◽  
Stress Waves ◽  
Ultrasonic Waves ◽  
Velocity Of Sound ◽  
Propagation Characteristics ◽  
Ultrasonic Properties ◽  
Crystalline Materials

AbstractMany authors have used propagation of ultrasonic waves in ice for glaciological studies. This propagation is characterized by the velocity of sound and by the attenuation of stress waves. In crystalline materials, these two characteristics depend on structural slate. In particular plastic deformation gives velocity and attenuation variations.We have measured the sound velocity and attenuation of ultrasonic waves in strained specimens of ice (single crystals and polycrystals). These measurements done between 100 and 273 K at a frequency of 5 MHz show that plastic deformation leads to an increase of attenuation arid an increase of velocity. Annealing treatments at 271 K cause recovery of propagation characteristics. The variation in attenuation can be interpreted by the theory of dislocations and this interpretation is supported by our data on the influence of frequency on this increase of attenuation induced by plastic deformation, but the theory of dislocations implies a decrease of modulus, i.e. of velocity, hence we must postulate that an added phenomenon screens the effect of dislocations. That phenomenon could be connected with ageing effects observed on different physical properties of ire and may be due to modification of protonic arrangement or creation of interstitials during plastic deformation. Thus our experiments show that it is necessary to be careful in using results determined from the propagation of ultrasonic waves in ice.

The Photometric Properties of the Ap Stars

1976 ◽  
Vol 32 ◽  
pp. 365-377 ◽  
Author(s):  
B. Hauck
Keyword(s):  
Physical Properties ◽  
Ap Stars

The Ap stars are numerous - the photometric systems tool It would be very tedious to review in detail all that which is in the literature concerning the photometry of the Ap stars. In my opinion it is necessary to examine the problem of the photometric properties of the Ap stars by considering first of all the possibility of deriving some physical properties for the Ap stars, or of detecting new ones. My talk today is prepared in this spirit. The classification by means of photoelectric photometric systems is at the present time very well established for many systems, such as UBV, uvbyβ, Vilnius, Geneva and DDO systems. Details and methods of classification can be found in Golay (1974) or in the proceedings of the Albany Colloquium edited by Philip and Hayes (1975).

The Infection of Cells by Bullet-Shaped Viruses

1969 ◽  
Vol 27 ◽  
pp. 372-373
Author(s):  
Frederick A. Murphy ◽  
Alyne K. Harrison ◽  
Sylvia G. Whitfield
Keyword(s):  
Electron Microscopy ◽  
Physical Properties ◽  
Host Cell ◽  
Thin Section ◽  
Cultured Cells ◽  
Cell Infection ◽  
Thin Section Electron Microscopy ◽  
Section Electron ◽  
Section Electron Microscopy

The bullet-shaped viruses are currently classified together on the basis of similarities in virion morphology and physical properties. Biologically and ecologically the member viruses are extremely diverse. In searching for further bases for making comparisons of these agents, the nature of host cell infection, both in vivo and in cultured cells, has been explored by thin-section electron microscopy.

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