Results 261 to 270 of about 87,062 (309)
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Science, 1991
Ultrasonic irradiation of liquids causes acoustic cavitation: the formation, growth, and implosive collapse of bubbles. Bubble collapse during cavitation generates transient hot spots responsible for high-energy chemistry and emission of light.
E B, Flint, K S, Suslick
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Ultrasonic irradiation of liquids causes acoustic cavitation: the formation, growth, and implosive collapse of bubbles. Bubble collapse during cavitation generates transient hot spots responsible for high-energy chemistry and emission of light.
E B, Flint, K S, Suslick
openaire +2 more sources
Medical Engineering & Physics, 2009
This article reviews the role of cavitation in the therapeutic applications of ultrasound and laser surgery, and the cavitation effects in mechanical heart valves. Whenever laser pulses are used to ablate or disrupt tissue in a liquid environment, cavitation bubbles are produced which interact with the tissue. The interaction between cavitation bubbles
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This article reviews the role of cavitation in the therapeutic applications of ultrasound and laser surgery, and the cavitation effects in mechanical heart valves. Whenever laser pulses are used to ablate or disrupt tissue in a liquid environment, cavitation bubbles are produced which interact with the tissue. The interaction between cavitation bubbles
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The Dynamics of a Cavitation Pocket and Cavitation Damage
Journal of Machinery Manufacture and Reliability, 2019The motion of a liquid column in a vertical tube caused by a moving piston that contacts its lower boundary is considered. The law of the piston’s motion is defined based on experimental data. The acceleration of the piston exceeds the acceleration due to gravity.
R. F. Ganiev, M. A. Il’gamov
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Cavitation and Cavitation Erosion
2014In this chapter, an introduction to cavitation and cavitation erosion is presented. Cavitation involves the development of various types of vapor structures (such as attached cavities, travelling bubbles, vortical cavities, bubble clouds) in liquid flow due to a drop in the local pressure below a critical value usually close to the vapor pressure ...
Georges L. Chahine +2 more
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Critical Reviews™ in Biomedical Engineering, 2006
Acoustic cavitation takes place when tiny gas bubbles oscillate, grow, and collapse in liquid under the influence of ultrasonic field. This study reviews cavitation bioeffects that are found both in vivo and in vitro when exposed to either low- or high-power acoustics.
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Acoustic cavitation takes place when tiny gas bubbles oscillate, grow, and collapse in liquid under the influence of ultrasonic field. This study reviews cavitation bioeffects that are found both in vivo and in vitro when exposed to either low- or high-power acoustics.
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Science
Cavitation, characterized by formation of vapor bubbles in a low-pressure or high-temperature region of a liquid, is often destructive, but it can be harnessed for actuators and robots. We exploit cavitation to accumulate substantial energy in superheated liquids by suppressing its immediate release until reaching a stability limit.
Dalei Wang +13 more
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Cavitation, characterized by formation of vapor bubbles in a low-pressure or high-temperature region of a liquid, is often destructive, but it can be harnessed for actuators and robots. We exploit cavitation to accumulate substantial energy in superheated liquids by suppressing its immediate release until reaching a stability limit.
Dalei Wang +13 more
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Cavitation nuclei and cavitation noise
The Journal of the Acoustical Society of America, 1988Present understanding of the influence of nuclei on the onset of cavitation and the generation of radiated cavitation noise is reviewed. It is now generally accepted that the formation of cavities in a liquid at only moderate negative pressures requires the presence of nuclei in the liquid; the experiments of Greenspan and Tschiegg, among others, leave
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2017
This article describes the fundamental phenomena of cavitation. The distinctive characteristics of cavitation in the marine applications, especially in the propellers, are introduced. This article explains first the quasi-steady processes in phase transitions of pure substances.
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This article describes the fundamental phenomena of cavitation. The distinctive characteristics of cavitation in the marine applications, especially in the propellers, are introduced. This article explains first the quasi-steady processes in phase transitions of pure substances.
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Coccidioidal pulmonary cavitation
The American Journal of Medicine, 1958Abstract 1.1. Seventy-seven cases of coccidioidal pulmonary cavitation have been summarized. 2.2. Cavitation is found in about 1 to 3 per cent of hospitalized patients with coccidioidomycosis, or about 0.1 per cent of all patients with this disease. 3.3.
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1997
Abstract ‘Cavitation is a most unpleasant hydrodynamic phenomenon, whose harmful effects are both widespread and obvious, and seriously handicap many areas of science and engineering. Conversely, its basic nature has long been veiled in mystery and only recently is it beginning to be understood’ wrote Knapp et al. (197GB).
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Abstract ‘Cavitation is a most unpleasant hydrodynamic phenomenon, whose harmful effects are both widespread and obvious, and seriously handicap many areas of science and engineering. Conversely, its basic nature has long been veiled in mystery and only recently is it beginning to be understood’ wrote Knapp et al. (197GB).
openaire +1 more source