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Acoustic Power Measurement and Thermal Bioeffect Evaluation of Therapeutic Langevin Transducers [PDF]

open access: yesSensors, 2022
We recently proposed an analytical design method of Langevin transducers for therapeutic ultrasound treatment by conducting parametric study to estimate the effect of compression force on resonance characteristics.
Jinhyuk Kim, Jungwoo Lee
doaj   +2 more sources

Newly Identified Properties of Surface Acoustic Power [PDF]

open access: yesSolar Physics, 2010
The cause of enhanced acoustic power surrounding active regions, the acoustic halo, is not as yet understood. We explore the properties of the enhanced acoustic power observed near disk center from 21 to 27 January 2002, including AR 9787. We find that (i) there exists a strong correlation of the enhanced high frequency power with magnetic-field ...
Schunker, H., Braun, D.
openaire   +5 more sources

Improvement of vertigo symptoms and acoustic power absorbance in cases with endolymphatic hydrops [PDF]

open access: yesLaryngoscope Investigative Otolaryngology
Objective The pathophysiology and symptoms underlying Meniere's disease (MD) manifest as endolymphatic hydrops (EH), potentially impacting acoustic power absorbance in vestibular EH.
Masumi Kobayashi   +6 more
doaj   +2 more sources

The effect of a concentrated mass on the acoustic power and the resonant frequencies of a circular plate [PDF]

open access: yesArchives of Acoustics, 2022
This study presents an analysis of the effect of the concentrated mass on the acoustic power and the resonant frequencies of a vibrating thin circular plate. The fluid-structure interactions and the acoustic wave radiation effect have been included.
Wojciech P. Rdzanek, Krzysztof Szemela
doaj   +1 more source

Transmission of Railway Induced Vibrations in Buildings [PDF]

open access: yesMATEC Web of Conferences, 2020
This paper presents the problem of vibration transmission in building structures, which is induced by rail transport, and it discusses the effect of acoustic isolation used at the foundation.
Moskovets Mariya, Kanev Nikolay
doaj   +1 more source

Acoustically powered surface-slipping mobile microrobots [PDF]

open access: yesProceedings of the National Academy of Sciences, 2020
Significance Untethered microrobots have significant applications in medical interventions such as targeted drug delivery. Here, we present an acoustically propelled microrobot that uses a fast and unidirectional surface-slipping locomotion strategy to navigate on both flat and curved surfaces.
Amirreza Aghakhani   +3 more
openaire   +5 more sources

Experimental assessment of the impact of high acoustic power ultrasound diagnostics on animal eyes

open access: yesРоссийский офтальмологический журнал, 2022
Purpose: to study the impact of diagnostic ultrasound of high acoustic power on animal eye tissues in the experiment.Material and methods. 46 Chinchilla rabbits (92 eyes) were divided into the main group of 38 rabbits (76 eyes) and the control group of 8
M. S. Zaitsev   +5 more
doaj   +1 more source

Selectively manipulable acoustic-powered microswimmers [PDF]

open access: yesScientific Reports, 2015
AbstractSelective actuation of a single microswimmer from within a diverse group would be afirst step toward collaborative guided action by a group of swimmers. Here wedescribe a new class of microswimmer that accomplishes this goal. Our swimmer designovercomes the commonly-held design paradigm that microswimmers must usenon-reciprocal motion to ...
Ahmed, Daniel   +7 more
openaire   +2 more sources

Intensity level as sustainable energy: Analysis of the conversion of energy stored on cicadas sound waves

open access: yesJurnal Ilmiah Pendidikan Fisika Al-Biruni, 2021
In this study, the researchers measured cicadas' sound waves, considering that cicadas are mostly found in rural areas. The intensity level meter (AMTAST AMF003) was used with time variations (9:00 JST; 12:00 JST; and 15:00 JST).
Rofiqul Umam   +5 more
doaj   +1 more source

Minimization of acoustic power in free space using multiple distributed sound sources (On the generation condition of the zero control power phenomena)

open access: yesNihon Kikai Gakkai ronbunshu, 2022
Low-frequency noise is difficult to suppress by passive control using a sound absorbing material. Active noise control is expected to be an effective method against low-frequency noise. Minimizing the total acoustic power emitted by a sound source causes
Yuta OGASAWARA   +2 more
doaj   +1 more source

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