Results 211 to 220 of about 71,198 (254)
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The characteristics of acoustic wave propagation in rotating solid-state media
2018 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus), 2018The results of theoretical and experimental researches of acoustic wave propagation into rotating solid-state media are presented. The influence of various rotation directions on wave characteristics is considered. The wave parameters, dependent from rotation velocity, which can be used as an informative signal for angular velocity sensors, are found ...
Andrey I. Lutovinov +4 more
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Chemical Engineering Science, 2021
Abstract This work proposed a theoretical acoustic emission (AE) model showing the correlation between the acoustic energy of particle motions and conveying conditions in horizontal hydraulic conveying. The acoustic energy of particle motions was extracted and calculated from the original acoustic signals by frequency domain analysis, showing a “two ...
Jingdai Wang +5 more
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Abstract This work proposed a theoretical acoustic emission (AE) model showing the correlation between the acoustic energy of particle motions and conveying conditions in horizontal hydraulic conveying. The acoustic energy of particle motions was extracted and calculated from the original acoustic signals by frequency domain analysis, showing a “two ...
Jingdai Wang +5 more
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Acoustical measurement of solid state non-linearity: Application to CsCdF3 and KZnF3
Journal of Sound and Vibration, 1983Abstract Combination of the results of two sets of measurements on the same crystalline samples of CsCdF3 and KZnF3 has made possible the evaluation of the third-order elastic (TOE) constants of these two fluoroperovskites. In the first technique the hydrostatic pressure dependence of the velocity of ultrasonic waves of different propagation and ...
J. Philip +4 more
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Q-factor of acoustic modes of a solid-state resonator at low temperatures
Measurement Techniques, 2011The acoustic characteristics of a cylindrical sample made of an aluminum alloy (model of gravity detector) in the course of cooling to temperatures on the order of the boiling point of liquid helium are studied. A specialized cryostat with working chamber having a large volume is presented.
V. N. Rudenko +5 more
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Quasi-steady-state surface acoustic waves at a rough solid surface
Solid State Communications, 1982Abstract Sound propagation along an inhomogeneous solid-vacuum interface is considered. The frequency-wavenumber relation has been obtained for the transverse-polarized surface wave and the range of existence of this wave has been analyzed. The surface roughness is shown to produce additional damping.
S.I. Khankina, A.A. Bulgakov
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Acoustic intensity modulation of solid-state lasers by means of a rocking mirror
Soviet Journal of Quantum Electronics, 1984Intensity modulation was produced in ruby and YAG:Nd3+ lasers by varying the angle of inclination of one of the resonator mirrors (rocking the mirror) at an ultrasonic frequency. Modulation occurred at twice the frequency of the excited mirror vibrations, the average intensity of the emission spikes simultaneously increased by a factor of more than 10,
G N Belova, E I Remizova
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Two-frequency acoustic modulation of the intensity of radiation emitted by solid-state lasers
Soviet Journal of Quantum Electronics, 1982Internal two-frequency modulation of the intensity of radiation emitted by ruby, neodymium glass, and YAG lasers was achieved by simultaneous excitation of a 5–25 MHz surface acoustic wave on one of the resonator mirrors and longitudinal ultrasonic vibrations of 20–100 kHz frequency of the other mirror.
G N Belova, E I Remizova
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Defect states of acoustic waves in a two-dimensional lattice of solid cylinders
Journal of Applied Physics, 1998Using the plane-wave expansion method, we study the propagation of acoustic waves through two-dimensional (2D) periodic composites consisting of solid cylinders in air. Defect in those structures create localized states inside the band gaps. We study both single and line defects.
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Solid state acoustic wave sensors for real‐time in‐line measurement of oil viscosity
Sensor Review, 2008PurposeThis paper aims to determine the important role of acoustic wave devices in sensing applications such as automotive applications, industrial applications and commercial applications.Design/methodology/approachThe paper provides a comprehensive overview of acoustic wave technology and highlights an example of one commercial implementation of its ...
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Circulating tumor DNA in advanced solid tumors: Clinical relevance and future directions
Ca-A Cancer Journal for Clinicians, 2021Michael L Cheng +2 more
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