Results 211 to 220 of about 30,144 (262)
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The Journal of the Acoustical Society of America, 1953
The applications of ultrasonic waves in electrochemistry are discussed in terms of (1) the effects of ultrasonic waves on electrode processes, (2) electrokinetic phenomena involving ultrasonic waves, and (3) the use of ultrasonic waves as a tool in the study of the structure of electrolytic solutions.
Ernest Yeager, Frank Hovorka
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The applications of ultrasonic waves in electrochemistry are discussed in terms of (1) the effects of ultrasonic waves on electrode processes, (2) electrokinetic phenomena involving ultrasonic waves, and (3) the use of ultrasonic waves as a tool in the study of the structure of electrolytic solutions.
Ernest Yeager, Frank Hovorka
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The Journal of the Acoustical Society of America, 1984
An ultrasonic wave probe comprises an ultrasonic wave transmitting vibrator and a pair of ultrasonic wave receiving vibrators in order to measure blood flow velocity. The receiving vibrators are adapted to receive reflected waves of an ultrasonic wave which is emitted from the transmitting vibrator and reflected from a measured point at different ...
Mitio Ohno +5 more
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An ultrasonic wave probe comprises an ultrasonic wave transmitting vibrator and a pair of ultrasonic wave receiving vibrators in order to measure blood flow velocity. The receiving vibrators are adapted to receive reflected waves of an ultrasonic wave which is emitted from the transmitting vibrator and reflected from a measured point at different ...
Mitio Ohno +5 more
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Ultrasonic wave interferometers
The Journal of the Acoustical Society of America, 1995An acoustic or ultrasonic device includes two ultrasonic energy transmission paths having substantially identical transmission characteristics for a neutral condition of the device. One or both of the transmission paths include path altering structure(s) or coating(s) for changing the transmission characteristics of one or both of the paths in response
Allen H. Meitzler, Edward N. Sickafus
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Ultrasonic guided waves in bone
The Journal of the Acoustical Society of America, 2008Recent progress in quantitative ultrasound (QUS) has shown increasing interest towards measuring long bones by ultrasonic guided waves. This technology is widely used in the field of non-destructive testing and evaluation of different waveguide structures.
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Contemporary Physics, 1969
Abstract This paper begins with a general discussion of wave propagation in a fluid followed by an account of the accompanying attenuation and relaxation effects. The attenuation and relaxation effects due to viscosity, heat conduction and molecular processes are then discussed in some detail.
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Abstract This paper begins with a general discussion of wave propagation in a fluid followed by an account of the accompanying attenuation and relaxation effects. The attenuation and relaxation effects due to viscosity, heat conduction and molecular processes are then discussed in some detail.
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On Scattering of Ultrasonic Waves
2003We report investigations regarding the possibility for improving ultrasonic imaging by an analysis of pulse deformations. Starting with a stochastic solution of the lossy wave equation, we present a general approach for perturbing stochastic processes on Lie groups by a Poisson process. Applications to radiation transport are indicated.
Peter Mathé +1 more
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Generation of ultrasonic replica wave packets
Physical Review B, 1985Conduction electrons on closed orbits in pure copper single crystals at low temperatures can interact with an ultrasonic wave packet to produce replicas of the wave packet nearby. Measurements of the ratio of replica amplitude to primary amplitude for magnetic fields between 50 and 260 G are reported.
, Kost, , Gavenda
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Nature, 1927
THE observations described in the striking experiment of Hubbard and Loomis (NATURE, Aug. 6, 1927, p. 189) are another example of the important conclusions which may be derived from a study of the interesting phenomenon of ultrasonic stationary waves. Velocities of sound in various, liquids were determined here by the ultrasonic stationary wave method ...
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THE observations described in the striking experiment of Hubbard and Loomis (NATURE, Aug. 6, 1927, p. 189) are another example of the important conclusions which may be derived from a study of the interesting phenomenon of ultrasonic stationary waves. Velocities of sound in various, liquids were determined here by the ultrasonic stationary wave method ...
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Effect of ultrasonic waves on the ribonuclease activity
Experientia, 1972L'irradiation ultrasonique de racines deLens culinaris provoque une baisse de l'activite RNasique dans la zone apicale (0–5 mm). L'ultrason etant non-cavitant, cette reduction d'activite doit etre causee par l'action denaturante liee aux effets thermiques de la perturbation ultrasonique.
F, Widmer, P E, Pilet
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