Results 21 to 30 of about 14,900 (257)

Dynamics of cavitation zone development during sonication of suspensions of magnesium particles

open access: yesЖурнал Белорусского государственного университета: Химия, 2021
The cavitation activity during ultrasonic treatment of magnesium particles has been investigated. The cavitation activity recorded in a continuous mode of ultrasonic treatment altered in a wide range at constant output parameters of the generator.
Nadzeya Yu. Brezhneva   +4 more
doaj   +1 more source

The influence of pressure on the acoustic cavitation in saturated CO2-expanded N, N-dimethylformamide

open access: yesUltrasonics Sonochemistry, 2022
CO2-expanded organic solvent is a kind of important fluid medium and has broad applications in chemical industry, environmental protection and other fields.
Hanyang Gao   +7 more
doaj   +1 more source

Efficiency of ultrasonic treatment of polysaccharide from brown algae

open access: yesChimica Techno Acta, 2021
Ultrasonic exposure can be used for depolymerization of brown algae polysaccharides. However, its effectiveness depends on several factors, including cavitation activity in the treatment medium.
Victoria E. Suprunchuk
doaj   +1 more source

Optic cavitation in an ultrasonic field

open access: yesPhysical Review E, 2006
Cavitation bubbles are generated in water by low-energy femtosecond laser pulses in the presence of an ultrasonic field. Bubble dynamics and cavitation luminescence are investigated by CCD photography and photomultiplier measurements in dependence on the phase of the acoustic cycle at which the bubbles are generated.
Kurz, Thomas   +3 more
openaire   +4 more sources

Effect of ultrasonic cavitation on grain growth of ceramic tool materials

open access: yesFenmo yejin jishu, 2021
To investigate the effect of the ultrasonic cavitation on the grain growth of the ceramic tool materials during the ultrasonic pressureless sintering, the cavitation effect of bubbles in the molten metals was studied, the grain model containing the ...
LI Dong-xu   +3 more
doaj   +1 more source

Ultrasonic synthesis of hydroxyapatite in non-cavitation and cavitation modes

open access: yesUltrasonics Sonochemistry, 2018
The size control of materials is of great importance in research and technology because materials of different size and shape have different properties and applications. This paper focuses on the synthesis of hydroxyapatite in ultrasound fields of different frequencies and intensities with the aim to find the conditions which allow control of the ...
A L, Nikolaev   +5 more
openaire   +2 more sources

Ultrasonic vibrations and coal permeability: Laboratory experimental investigations and numerical simulations

open access: yesInternational Journal of Mining Science and Technology, 2017
Ultrasonic vibrations in coal lead to cavitation bubble oscillation, growth, shrinkage, and collapse, and the strong vibration of cavitation bubbles not only makes coal pores break and cracks propagate, but plays an important role in enhancing the ...
Junwen Zhang, Yulin Li
doaj   +1 more source

Effect of cavitation bubble on the dispersion of magnetorheological polishing fluid under ultrasonic preparation

open access: yesUltrasonics Sonochemistry, 2021
In the ultrasonic dispersion process, the ultrasonic cavitation effect can seriously affect the dispersion efficiency of magnetorheological polishing fluid (MRPF), but the mechanism remains unclear now.
Ce Guo   +3 more
doaj   +1 more source

Dissolved gas and ultrasonic cavitation – A review

open access: yesUltrasonics Sonochemistry, 2013
The physics and chemistry of nonlinearly oscillating acoustic cavitation bubbles are strongly influenced by the dissolved gas in the surrounding liquid. Changing the gas alters among others the luminescence spectrum, and the radical production of the collapsing bubbles.
Rooze, J.   +3 more
openaire   +3 more sources

Experimental investigation on the ultrasonic impregnation of wood through measurements of the intensity of sonoluminescence

open access: yesUltrasonics Sonochemistry, 2022
Ultrasonic impregnation is thought to be an effective way of permeation of liquid into material through the material-surface reforming with the attack by an ultrasonic cavitation jet or by the shock wave emitted from a collapsing bubble, or through ...
Toru Tuziuti, Kyuichi Yasui
doaj   +1 more source

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