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Open Journal of Acoustics (OJA) is an international journal dedicated to the advancement of the study of acoustics. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of acoustics. Al…
Aleksey Anatolievich Zakharenko
This theoretical work discovers four new dispersive shear-horizontal (SH) waves propagating in the transversely isotropic piezoelectromagnetic plate of class 6 mm. In this work, the following mechanical, electrical, and magnetic boundary conditions at both th…
V. P. Ivanov, G. K. Ivanova
This paper is proposed to consider the propagation of sound waves in the liquid as a result of special deformation of the medium. Mechanical vibrations of the membrane, (diaphragm) creating a sound wave, transfer from layer to layer in medium without causing…
Aleksey Anatolievich Zakharenko
Two additional solutions of new shear-horizontal surface acoustic waves (SH-SAWs) are found in this theoretical report. The SH-SAW propagation is managed by the free surface of a solid when it has a direct contact with a vacuum. The studied smart solid repres…
Victor D. Svet
It is shown that the estimation of nonlinear distortions in the various circuits based on the measurement of the ratio of the dispersion and correlation functions does not depend on the level of additive noise acting on the input (or output) of nonlinear circ…
Aleksey Anatolievich Zakharenko
This comparative study acquaints the reader with some properties of the eighth and tenth new shear-horizontal surface acoustic waves (SH-SAWs) propagating along the free surface of the magnetoelectroelastic (6 mm) medium. These new nondispersive SH-SAWs canno…
Daisuke Kobayashi, Kaho Shimakage, Chiemi Honma, Hideyuki Matsumoto, Katsuto Otake, Atsushi Shono
The ultrasonic degradation of methylene blue at a frequency of 490 kHz was carried out in the absence and presence of TiO 2 or Al 2 O 3 particle, and the effects of amounts of particle on the enhancement of degradation rate constant estimated by assuming firs…
J. Schmalz, W. Kowalczyk
In this work the turbulence based acoustic sources and the corresponding wave propagation of fluctuating flow values in incompressible fluid flows are considered. Lighthill’s and Curle’s acoustic analogies are implemented in the open source computational flui…
Ken McGill, Kathryn Harke, Kris Schock
The experiment involves creating a sound wave that propagates down a pipe with 8 transducers attached at equally spaced intervals of 0.01016 m. The numerical method—the Cross Correlation Method, used to solve for the phase component, creates a high correlatio…
Victor D. Svet, Dmitrii A. Dement'ev
In nuclear reactors cooled by liquid metals, ultrasound is the only type of field that allows obtaining images of the reactor cores and diagnostics of the integrity of the fuel assemblies. The article discusses the features of the practical realization of ult…
Marcos Raul Lisboa, José Cataldo Ottieri, Alice Elizabeth González
The analysis of acoustic emissions generated by the interaction between the wind and a building’s facade of approximately 90 m high, located in the city of Montevideo, is presented. There is a helipad on the roof of the building. It is surrounded by a perfora…
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Open Journal of Acoustics (OJA) is an international journal dedicated to the advancement of the study of acoustics. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of acoustics. Al… All articles are open access under a CC BY 4.0 licence, with authors retaining copyright.
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