نتایج جستجو برای: acoustic streaming
تعداد نتایج: 105633 فیلتر نتایج به سال:
How a mixture of acoustic sources is perceptually organized into discrete auditory objects remains unclear. One current hypothesis postulates that perceptual segregation of different sources is related to the spatiotemporal separation of cortical responses induced by each acoustic source or stream. In the present study, the dynamics of subthreshold membrane potential activity were measured acro...
The pressure gradient along the ultrasonic beam results in medium streaming. Following Nyborg's analysis of the Navier-Stokes equation, Wu and Du developed an approximate solution for the streaming velocity generated by flat and weakly focused transducers. We have modified their solution of the Poisson equation by directly deriving the Dirichlet boundary conditions to be applied for this type o...
We derive analytical expressions for the three-dimensional (3D) acoustophoretic motion of spherical microparticles in rectangular microchannels. The motion is generated by the acoustic radiation force and the acoustic streaming-induced drag force. In contrast to the classical theory of Rayleigh streaming in shallow, infinite, parallel-plate channels, our theory does include the effect of the mi...
The influence of an impinging acoustic streaming jet on wall mass transfer is studied both experimentally and numerically. idea to show that acoustically-driven jets generated by ultrasounds can be used enhance phenomena at a distance, creating localized friction zones. An experimental setup has been developed consisting in cavity containing electrolytic solution [Fe(CN)6]4−/[Fe(CN)6]3−. A forc...
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