Results 21 to 30 of about 236,592 (299)

Solid-driven mechanism and experimental study based on surface acoustic wave microfluidic

open access: yesAIP Advances, 2020
This study proposes a method to drive a solid by liquid–solid coupling and designs and manufactures a surface acoustic wave actuator to drive a wetted solid ball. The solid ball moves under surface acoustic wave microfluidic acoustic streaming.
Tinghua Li   +8 more
doaj   +1 more source

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

Influence of viscoelasticity and interfacial slip on acoustic wave sensors [PDF]

open access: yes, 2000
Acoustic wave devices with shear horizontal displacements, such as quartz crystal microbalances (QCM) and shear horizontally polarised surface acoustic wave (SH-SAW) devices provide sensitive probes of changes at solid-solid and solid- liquid interfaces.
Cowen, JA   +3 more
core   +1 more source

Phased electromagnetic acoustic transducer array for Rayleigh wave surface defect detection [PDF]

open access: yes, 2020
A phased electromagnetic acoustic transducer (EMAT) array system has been developed for detection and characterisation of surface breaking defects. An array of four linear coils which are individually controlled are used to generate a Rayleigh wave.
Dixon, S.   +3 more
core   +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

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

Direct observation of dynamic surface acoustic wave controlled carrier injection into single quantum posts using phase-resolved optical spectroscopy [PDF]

open access: yes, 2010
A versatile stroboscopic technique based on active phase-locking of a surface acoustic wave to picosecond laser pulses is used to monitor dynamic acoustoelectric effects.
Kim, H.   +7 more
core   +2 more sources

Surface Acoustic Wave Propagation and Inhomogeneities in Low Density Two-Dimensional Electron Systems Near the Metal-Insulator Transition [PDF]

open access: yes, 2005
We have measured the surface acoustic wave velocity shift in a GaAs/AlGaAs heterostructure containing a two-dimensional electron system (2DES) in a low-density regime ($
Eisenstein, J. P.   +4 more
core   +2 more sources

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

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