Results 91 to 100 of about 35,987 (205)

Voltammetric Exploration and Applications of Ultrasonic Cavitation

open access: yesChemPhysChem, 2003
AbstractVoltammetric measurements carried out in the presence of power ultrasound are reviewed, and the physical processes responsible for the observed substantial augmentation of mass transport identified as resulting from a mixture of acoustic streaming and cavitation.
Banks, C, Compton, R
openaire   +3 more sources

Surface integrity of 2A70 aluminum alloy processed by laser-induced peening and cavitation bubbles

open access: yesResults in Physics, 2019
This paper presents a novel compound strengthening method based on laser-induced peening and cavitation peening (LIPCP). 2A70 aluminum alloy was strengthened by plasma shock wave and cavitation bubble collapse shock wave.
Hongfeng Zhang   +6 more
doaj   +1 more source

Electrical detection of the ultrasonic cavitation onset

open access: yesUltrasonics Sonochemistry, 2012
We propose a new technique for the study of ultrasonic cavitation. This method is based on the quantification of the electrical admittance variations of the emitter in a range around the resonance frequency at different excitation levels. As the cavitation threshold is reached, the state of the fluid is changing; we evaluate these changes.
Cleofé, Campos-Pozuelo   +1 more
openaire   +2 more sources

Inhibition of the ultrasonic microjet-pits on the carbon steel in the particles-water mixtures

open access: yesAIP Advances, 2015
In the incubation period of ultrasonic cavitation, due to the impact of microjets on the material surface, the needle-like microjet-pits are formed. Because the formation of microjet-pits relates with the evolution of cavitation erosion on engineering ...
Dayun Yan, Jiadao Wang, Fengbin Liu
doaj   +1 more source

The Use of Ultrasonic Frequencies as a Mechanism for Refining [PDF]

open access: yes, 1983
The objective of this thesis was to explore the use of ultrasonic frequencies as a mechanism for refining. Through cooperation with the Intex Corporation, an ultrasonic cleaning apparatus, that was easily adaptable to.use as a refiner, was borrowed.
Munce, Martin E.
core   +1 more source

Enhancement of the corrosion resistance of the Mg alloy ZW61 by dual-frequency ultrasonic vibration

open access: yesJournal of Magnesium and Alloys
Ultrasonic vibration was introduced into the casting of quasicrystal-reinforced magnesium alloy ZW61. The microstructure, mechanical properties, and corrosion resistance were studied.
Zhaoyang Yin   +8 more
doaj   +1 more source

Investigation of incipient cavitation in various liquids based on PIV quantification and numerical simulations

open access: yesScientific Reports
This work experimentally and analytically investigated the incipient cavitation behavior in four liquids with different physical properties: ethanol, de-ionized water, glycerine, and aluminum melt under ultrasonic irradiation close to the cavitation ...
Jian Chen   +8 more
doaj   +1 more source

The application of ultrasound in neuroendoscopic procedures: first results with the new tool »NECUP-2« [Upotreba ultrazvuka u neuroendoskopskim procedurama: prvi rezultati s novim uređajem »NECUP-2«] [PDF]

open access: yes, 2011
In this paper, our experience with originally constructed Neurosurgical Endoscopic Contact Ultrasound Probe »NECUP-2« in neuroendoscopy is reported. Between June 1997 and June 2007, 132 neuroendoscopic procedures have been performed: 102 endoscopic thrid
Jednačak, Hrvoje   +6 more
core  

Ultrasonic-assisted preparation of SBS modified asphalt: Cavitation bubble numerical simulation and rheological properties

open access: yesUltrasonics Sonochemistry
SBS (styrene–butadiene–styrene block copolymer) is currently the most widely used asphalt modifier, and SBS modified asphalt is usually prepared by high-speed shearing.
Ruien Yu   +7 more
doaj   +1 more source

Measurement of the thorium-228 activity in solutions cavitated by ultrasonic sound

open access: yes, 2009
We show that cavitation of a solution of thorium-228 in water does not induce its transformation at a faster rate than the natural radioactive decay. We measured the activity of a thorium-228 solution in water before, and after, it was subjected to a ...
Andersen   +9 more
core   +1 more source

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