- Email: [email protected]
Velocity dispersion of waves propagating along the edge of a plate
The time-dependent force and radiation impedance on a piston in a rigid infinite planar baffle Stepanishen, P. R. Vol 49, No 3, Part 2 (March 1971) pp 841 849
Brillouin scattering and dispersion and attenuation of hypersonic thermal waves in liquid carbon tetrachloride Stegeman, G. 1. A., Gornall, W. S., Volterra, V., Stoicheff, B. P. Vol 49, No 3, Part 3 (March 1971) pp 9 7 9 993
A portable h y d r o p h o n e calibrator Trott, W. J. Vol 49, No 3, Part 2 (March 1971) pp 850 855
Brillouin spectra of ethyl ether and carbon disulphide Gewurtz, S., Gornall, W. S., Stoicheff, B. P. Vol 49, No 3, Part 3 (March 1971) pp 994 1000
A portable h y d r o p h o n e calibrator with associated electronic circuitry is described for calibration of a wide variety of hydrophones. The calibrator covers the frequency range from 1 Hz to 3.5 kHz and simulates operating depth by m e a n s of hydrostatic pressure to 1000 psi and temperature variation from 4°C to room temperature. The calibrator is a closed chamber in which a sinusoidal pressure is produced by a piezoceramic tube that forms half of the cylindrical wall. A second piezoceramic tube forms the other half and measures the pressure in the region of the h y d r o p h o n e . A step pressure establishes the absolute calibration of the system. Wave propagation in a liquid layer bonded between a rigid plane and a semi-infinite fluid space Wang, W. M. Vol 49, No 3, Part 2 (March 1971) pp 856 861 Brillouin effect in liquids in the prelaser era Rank, D. 1I. Vot 49, No 3, Part 3 (March 1971) pp 937 94O Rayleigh scattering in dilute gases Yip, S. Vol 49, No 3, Part 3 (March 1971) pp 941 949 Light scattered from thermal fluctuations in gases Broz, A., Harrigan, M., Kasten, R., Monkewicz, A. Vol 49, No 3, Part 3 (March 1971) pp 950 953 Low-temperature m e a s u r e m e n t of the hypersonic absorption in fused quartz by stimulated Brillouin scattering Heinicke, W., Winterling, G., Dransfeld, K. Vol 49, No 3, Part 3 (March 1971) pp 954 958 Quantitative investigations of stimulated Brillouin scattering Kaiser, W. Vol 49, No 3, Part 3 (March 1971) pp 959 963
A discussion of the physical basis of Brillouin scattering Piercy, J. E., Hanes, G. R. Vol 49, No 3, Part 3 (March 1971) pp 1001 1012 Resonance-enhanced Brillouin scattering in crystals Burstein, E., Ito, R., Pinczuk, A., Shand, M. Vol 49, No 3, Part 3 (March 1971) pp 1013 1025 Linear wave-vector dispersion of the shearwave phase velocity in quartz Pine, A. S. Vol 49, No 3, Part 3 (March 1971) pp 1026 1029 Brillouin scattering from SF 6 in the vicinity of the critical point Mohr. R., Langley, K. H., Ford, N. C., Jr. Vol 49, No 3, Part 3 (March 1971) pp 1030 1032 Low-field acoustoelectric interaction and thermal Brillouin scattering Smith, R. W. Vol 49, No 3, Part 3 (March 1971) pp 10331036 Brillouin-scattering studies of the acoustoelectric effect Zucker, J., Zemon, S. Vol 49, No 3, Part 3 (March 1971) pp 1037 1040 Phonon instabilities and interactions near solid-state phase transitions Fleury, P. A. Vol 49, No 3, Part 3 (March 1971) pp 1041 1051 A new acoustic p h o n o n spectrometer Anderson, C. H., Sabisky, E. S. Vol 49, No 3, Part 3 (March 1971) pp 1052 1058. Astigmatic imaging properties of Bragg diffraction Korpel, A. Vol 49, No 3, Part 3 (March 1971) pp 1 0 5 9 1061.
Interaction of light and sound in processes of thermal and stimulated molecular scattering od" light Fabelinskii, I., Starunov, V. S. Vol 49, No 3, Part 3 (March 1971) pp 9 6 4 973
Studies of resolution in a Bragg imaging system Smith, R. A., Wade, G., Powers, J., Laundry, J. Vol 49, No 3, Part 3 (March 1971) pp 1062 1068.
Laser excitation of microwave sound in solids Cacher, G. Vol 49, No 3, Part 3 (March 1971) pp 974 978
Stochastic filter modeling for the sea-surface scattering channel Venetsanopoulos, A. N., Tuteur, F. B. Vol 49, No 4, Part.l (April 1971) pp 1100 1107.
246
Ultrasonic examination of proton-transfer reactions in aqueous solutions o f Glycine Hussey, M., Edmonds, P. D. Vol 49, No 4, Part 2 (April 1971) pp 1309 1316. This paper reports a comprehensive experimental investigation, using ultrasonic techniques to study the kinetics of protontransfer reactions in nondilute aqueous solutions of amino acids. Ultrasonic absorption and velocity m e a s u r e m e n t s in the range of frequencies 1 0 - 1 3 0 MHz and of pH 0 . 9 6 - 1 1 . 6 are analyzed in terms of single relaxation behaviour. Activity coefficients are calculated by three m e t h o d s ; the m e t h o d based upon standard ionic radii and the mean dielectric constant of the solutions is found to yield the m o s t acceptable estimates. The dependencies of rate constants upon initial concentration of solute, ionic strength, and temperature are displayed in the range 0 . 2 5 M - 1 . 0 M , 0.25M 1 0 M a n d 2 2 ° 37°C, respectively. It is concluded that proton-transfer reactions at amino and carboxyl groups cannot be responsible for significant contributions to tile total ultrasonic absorption coefficient of blood in the physiological range of pH.
ACUSTICA Velocity dispersion of waves propagating along the edge of a plate Sinclair, R., Stephens, R. W. B. Vo124, N o 3 (March 1 9 7 1 ) p p 160 165. It is shown that there should be a frequency dependence of the velocity of a Rayleigh wave propagated along the edge of a thin plate. This velocity can be expressed in terms of an effective Poisson's ratio of which the pseudo-Poisson's ratio of Oliver, Press and Ewing (1954) is a special case. Experimental results using a metal disc show that the frequency dependence of the velocity agrees reasonably with the theory over a range of frequencies for which the effective Poisson's ratio has positive values. Determination of elastic constants by m e a s u r e m e n t of tile Rayleigh wave velocity along the edge of a plate Sinclair, R. Vo124, N o 3 (March 1 9 7 1 ) p p 165 167. The elastic constants were calculated for brass (60% copper, 405:~ zinc) from measured values for the velocities o f shear waves and of Rayleigh waves propagating around the edge of a thin disc. The concept of the pseudo-Poisson's ratio is used. An ultrasonic-excited shift in the ultraviolet absorption band-spectra of certain organic vapours Venkata Seshaiah, V. Vol 24, No 3 (March 1971) pp 1 6 8 - 1 7 2 . An ultrasonic shift in the ultra-violet absorption band spectra has been observed in the vapours of benzene and certain m o n o s u b s t i t u t e d benzenes at room temperatures. The shift is found to be dependent upon the ratio of the frequency of sound wave to the pressure of vapour. The experimental details and the reproducibility of the observed shift is explained. The shift is correlated with rotational transitions
ULTRASONICS. OCTOBER 1971
Brillouin scattering and dispersion and attenuation of hypersonic thermal waves in liquid carbon tetrachloride Stegeman, G. 1. A., Gornall, W. S., Volterra, V., Stoicheff, B. P. Vol 49, No 3, Part 3 (March 1971) pp 9 7 9 993
A portable h y d r o p h o n e calibrator Trott, W. J. Vol 49, No 3, Part 2 (March 1971) pp 850 855
Brillouin spectra of ethyl ether and carbon disulphide Gewurtz, S., Gornall, W. S., Stoicheff, B. P. Vol 49, No 3, Part 3 (March 1971) pp 994 1000
A portable h y d r o p h o n e calibrator with associated electronic circuitry is described for calibration of a wide variety of hydrophones. The calibrator covers the frequency range from 1 Hz to 3.5 kHz and simulates operating depth by m e a n s of hydrostatic pressure to 1000 psi and temperature variation from 4°C to room temperature. The calibrator is a closed chamber in which a sinusoidal pressure is produced by a piezoceramic tube that forms half of the cylindrical wall. A second piezoceramic tube forms the other half and measures the pressure in the region of the h y d r o p h o n e . A step pressure establishes the absolute calibration of the system. Wave propagation in a liquid layer bonded between a rigid plane and a semi-infinite fluid space Wang, W. M. Vol 49, No 3, Part 2 (March 1971) pp 856 861 Brillouin effect in liquids in the prelaser era Rank, D. 1I. Vot 49, No 3, Part 3 (March 1971) pp 937 94O Rayleigh scattering in dilute gases Yip, S. Vol 49, No 3, Part 3 (March 1971) pp 941 949 Light scattered from thermal fluctuations in gases Broz, A., Harrigan, M., Kasten, R., Monkewicz, A. Vol 49, No 3, Part 3 (March 1971) pp 950 953 Low-temperature m e a s u r e m e n t of the hypersonic absorption in fused quartz by stimulated Brillouin scattering Heinicke, W., Winterling, G., Dransfeld, K. Vol 49, No 3, Part 3 (March 1971) pp 954 958 Quantitative investigations of stimulated Brillouin scattering Kaiser, W. Vol 49, No 3, Part 3 (March 1971) pp 959 963
A discussion of the physical basis of Brillouin scattering Piercy, J. E., Hanes, G. R. Vol 49, No 3, Part 3 (March 1971) pp 1001 1012 Resonance-enhanced Brillouin scattering in crystals Burstein, E., Ito, R., Pinczuk, A., Shand, M. Vol 49, No 3, Part 3 (March 1971) pp 1013 1025 Linear wave-vector dispersion of the shearwave phase velocity in quartz Pine, A. S. Vol 49, No 3, Part 3 (March 1971) pp 1026 1029 Brillouin scattering from SF 6 in the vicinity of the critical point Mohr. R., Langley, K. H., Ford, N. C., Jr. Vol 49, No 3, Part 3 (March 1971) pp 1030 1032 Low-field acoustoelectric interaction and thermal Brillouin scattering Smith, R. W. Vol 49, No 3, Part 3 (March 1971) pp 10331036 Brillouin-scattering studies of the acoustoelectric effect Zucker, J., Zemon, S. Vol 49, No 3, Part 3 (March 1971) pp 1037 1040 Phonon instabilities and interactions near solid-state phase transitions Fleury, P. A. Vol 49, No 3, Part 3 (March 1971) pp 1041 1051 A new acoustic p h o n o n spectrometer Anderson, C. H., Sabisky, E. S. Vol 49, No 3, Part 3 (March 1971) pp 1052 1058. Astigmatic imaging properties of Bragg diffraction Korpel, A. Vol 49, No 3, Part 3 (March 1971) pp 1 0 5 9 1061.
Interaction of light and sound in processes of thermal and stimulated molecular scattering od" light Fabelinskii, I., Starunov, V. S. Vol 49, No 3, Part 3 (March 1971) pp 9 6 4 973
Studies of resolution in a Bragg imaging system Smith, R. A., Wade, G., Powers, J., Laundry, J. Vol 49, No 3, Part 3 (March 1971) pp 1062 1068.
Laser excitation of microwave sound in solids Cacher, G. Vol 49, No 3, Part 3 (March 1971) pp 974 978
Stochastic filter modeling for the sea-surface scattering channel Venetsanopoulos, A. N., Tuteur, F. B. Vol 49, No 4, Part.l (April 1971) pp 1100 1107.
246
Ultrasonic examination of proton-transfer reactions in aqueous solutions o f Glycine Hussey, M., Edmonds, P. D. Vol 49, No 4, Part 2 (April 1971) pp 1309 1316. This paper reports a comprehensive experimental investigation, using ultrasonic techniques to study the kinetics of protontransfer reactions in nondilute aqueous solutions of amino acids. Ultrasonic absorption and velocity m e a s u r e m e n t s in the range of frequencies 1 0 - 1 3 0 MHz and of pH 0 . 9 6 - 1 1 . 6 are analyzed in terms of single relaxation behaviour. Activity coefficients are calculated by three m e t h o d s ; the m e t h o d based upon standard ionic radii and the mean dielectric constant of the solutions is found to yield the m o s t acceptable estimates. The dependencies of rate constants upon initial concentration of solute, ionic strength, and temperature are displayed in the range 0 . 2 5 M - 1 . 0 M , 0.25M 1 0 M a n d 2 2 ° 37°C, respectively. It is concluded that proton-transfer reactions at amino and carboxyl groups cannot be responsible for significant contributions to tile total ultrasonic absorption coefficient of blood in the physiological range of pH.
ACUSTICA Velocity dispersion of waves propagating along the edge of a plate Sinclair, R., Stephens, R. W. B. Vo124, N o 3 (March 1 9 7 1 ) p p 160 165. It is shown that there should be a frequency dependence of the velocity of a Rayleigh wave propagated along the edge of a thin plate. This velocity can be expressed in terms of an effective Poisson's ratio of which the pseudo-Poisson's ratio of Oliver, Press and Ewing (1954) is a special case. Experimental results using a metal disc show that the frequency dependence of the velocity agrees reasonably with the theory over a range of frequencies for which the effective Poisson's ratio has positive values. Determination of elastic constants by m e a s u r e m e n t of tile Rayleigh wave velocity along the edge of a plate Sinclair, R. Vo124, N o 3 (March 1 9 7 1 ) p p 165 167. The elastic constants were calculated for brass (60% copper, 405:~ zinc) from measured values for the velocities o f shear waves and of Rayleigh waves propagating around the edge of a thin disc. The concept of the pseudo-Poisson's ratio is used. An ultrasonic-excited shift in the ultraviolet absorption band-spectra of certain organic vapours Venkata Seshaiah, V. Vol 24, No 3 (March 1971) pp 1 6 8 - 1 7 2 . An ultrasonic shift in the ultra-violet absorption band spectra has been observed in the vapours of benzene and certain m o n o s u b s t i t u t e d benzenes at room temperatures. The shift is found to be dependent upon the ratio of the frequency of sound wave to the pressure of vapour. The experimental details and the reproducibility of the observed shift is explained. The shift is correlated with rotational transitions
ULTRASONICS. OCTOBER 1971