Results 21 to 30 of about 32,614 (207)

Microbubble Cavitation Imaging [PDF]

open access: yes, 2013
Ultrasound cavitation of microbubble contrast agents has a potential for therapeutic applications such as sonothrombolysis (STL) in acute ischemic stroke.
Everbach, E. Carr   +7 more
core   +3 more sources

On acoustic cavitation of slightly subcritical bubbles [PDF]

open access: yes, 1998
The classical Blake threshold indicates the onset of quasistatic evolution leading to cavitation for gas bubbles in liquids. When the mean pressure in the liquid is reduced to a value below the vapor pressure, the Blake analysis identifies a critical ...
Harkin, Anthony   +2 more
core   +3 more sources

Taming Acoustic Cavitation [PDF]

open access: yes, 2012
In this fluid dynamics video we show acoustic cavitation occurring from pits etched on a silicon surface. By immersing the surface in a liquid, gas pockets are entrapped in the pits which upon ultrasonic insonation, are observed to shed cavitation bubbles.
Rivas, David Fernandez   +6 more
openaire   +4 more sources

Identification of Cavitation by Noise [PDF]

open access: yesMATEC Web of Conferences, 2022
The identification of cavitation is very important in technical practice for operational and especially economic reasons. The article deals with the use of another way to measure noise during cavitation.
Jablonská Jana   +5 more
doaj   +1 more source

Covert cavitation: Spectral peak suppression in the acoustic emissions from spatially configured nucleations [PDF]

open access: yes, 2017
Dual laser-nucleation is used to precisely configure two cavitation bubbles within a focused ultrasound field of f0 = 692 kHz, in proximity to the tip of a needle hydrophone.
Jae Hee Song   +3 more
core   +1 more source

Experimental Investigation of the Effect of Suction Valve Opening on the Performance and Detection of Cavitation in the Centrifugal Pump Based on Acoustic Analysis Technique

open access: yesArchives of Acoustics, 2019
The pump performance and occurrence of cavitation directly depends on different operating conditions. To cover a wide range of operation conditions for detecting cavitation in this work, investigations on the effect of various suction valve openings on ...
Ahmed Ramadhan AL-OBAIDI
doaj   +1 more source

Inner surface peening for long and narrow helical pipe using acoustic cavitation

open access: yesMaterials & Design, 2023
The inner surface peening of helical pipes is highly challenging due to the inaccessibility of the inner surface. To the end, we propose to peen the inner surface by introducing acoustic cavitation inside the pipe. We also provide a theory to account for
Prabhu Murugesan   +2 more
doaj   +1 more source

The role of ultrasound-driven microbubble dynamics in drug delivery : from microbubble fundamentals to clinical translation [PDF]

open access: yes, 2019
In the last couple of decades, ultrasound-driven microbubbles have proven excellent candidates for local drug delivery applications. Besides being useful drug carriers, microbubbles have demonstrated the ability to enhance cell and tissue permeability ...
De Smedt, Stefaan   +6 more
core   +4 more sources

Observations and scaling of travelling bubble cavitation [PDF]

open access: yes, 1995
Recent observations of growing and collapsing bubbles in flows over axisymmetric headforms have revealed the complexity of the ‘micro-fluid-mechanics’ associated with these bubbles (van der Meulen & van Renesse 1989; Briancon-Marjollet et al.
Brennen, C. E.   +2 more
core   +1 more source

Influence of the parameters of acoustic waves on the characteristics of cavitation bubbles in liquid aluminum

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022
Calculation of parameters of a cavitation bubble during irradiation of aluminum melt with acoustic waves is carried out. The dependences of the Mach number on the amplitude at frequencies of 1-20 kHz used in the experiments are obtained.
R.Yu. Karmokova   +4 more
doaj   +1 more source

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