Results 11 to 20 of about 236,690 (298)

On the acoustic attenuation characteristics of sonar detection in the salt-cavern gas storage environment

open access: yesFrontiers in Earth Science, 2023
Aiming at the acoustic attenuation in the salt-cavern environment, this paper established a theoretical relationship of the ultrasonic attenuation in the salt-cavern gas storage, based on the wave equation of the acoustic wave propagating in a non-ideal ...
Haiyan Yang   +5 more
doaj   +1 more source

Noise generation in the solid Earth, oceans, and atmosphere, from non-linear interacting surface gravity waves in finite depth [PDF]

open access: yes, 2012
Oceanic pressure measurements, even in very deep water, and atmospheric pressure or seismic records, from anywhere on Earth, contain noise with dominant periods between 3 and 10 seconds, that is believed to be excited by ocean surface gravity waves. Most
Ardhuin, Fabrice, Herbers, Thomas H. C.
core   +4 more sources

Acoustic-surface-wave filters

open access: yesElectronics Letters, 1969
Two examples of filters using Rayleigh waves, at the frequencies of 25 MHz and 150 MHz, are described. The shape, almost rectangular, of the frequency response is determined by drawing one transducer.
E. Dieulesaint, P. Hartemann
openaire   +1 more source

Structural optimization and analysis of surface acoustic wave biosensor based on numerical method

open access: yesInternational Journal of Distributed Sensor Networks, 2019
The biosensor based on surface acoustic wave is of great significance for the application of biological clinical detection, but the sensitivity and specificity of surface acoustic wave biosensor still need to be improved.
Zhaoming Zhou   +3 more
doaj   +1 more source

Acoustic wave detection of laser shock peening

open access: yesOpto-Electronic Advances, 2018
In order to overcome the existing disadvantages of offline laser shock peening detection methods, an online detection method based on acoustic wave signals energy is provided.
Wu Jiajun   +5 more
doaj   +1 more source

Quantized charge transport through a static quantum dot using a surface acoustic wave [PDF]

open access: yes, 2003
We present a detailed study of the surface acoustic wave mediated quantized transport of electrons through a split gate device containing an impurity potential defined quantum dot within the split gate channel.
A.M. Robinson   +30 more
core   +1 more source

Surface acoustic wave frequency comb [PDF]

open access: yesSPIE Proceedings, 2012
We report on realization of an efficient triply-resonant coupling between two long lived optical modes and a high frequency surface acoustic wave (SAW) mode of the same monolithic crystalline whispering gallery mode resonator. The coupling results in an opto-mechanical oscillation and generation of a monochromatic SAW. A strong nonlinear interaction of
Savchenkov, A. A.   +4 more
openaire   +2 more sources

Acoustic radiation-free surface phononic crystal resonator for in-liquid low-noise gravimetric detection

open access: yesMicrosystems & Nanoengineering, 2021
Acoustic wave resonators are promising candidates for gravimetric biosensing. However, they generally suffer from strong acoustic radiation in liquid, which limits their quality factor and increases their frequency noise.
Feng Gao   +4 more
doaj   +1 more source

Transmission and measurement characteristics evaluation of surface acoustic wave sensor on rotating spindle in machine tools

open access: yesAdvances in Mechanical Engineering, 2016
Surface acoustic wave sensors offer overwhelming advantages over other potentially competitive sensing technologies in rotating mechanical structures for their wireless and passive capability.
Xinhua Yao, Congcong Luan, Jianzhong Fu
doaj   +1 more source

Acoustic wave-driven oxide dependant dynamic behavior of liquid metal droplet for inkjet applications

open access: yesMaterials Research Express, 2023
In this paper, we report bouncing and separating dynamic behaviors of a liquid metal droplet with/without the oxide layer in response to the applied acoustic wave.
Jinpyo Jeon   +3 more
doaj   +1 more source

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