منابع مشابه
Mechanism of foam destruction by antifoams: a molecular dynamics study.
In enhanced oil recovery (EOR), the micro-oil droplet heavily affected the stability of foam and prevented foam flooding. In this paper, the oil bridge-stretching mechanism of foam rupture was described through molecular dynamics with the aim of providing supplements to the experiments at the molecular level. Two important phenomena for foam rupture have been pointed out by the simulation. One ...
متن کاملInvestigation of ultrasonic vibrations of wire-bonding capillaries
Ultrasonic energy is widely used in wire bonding for microelectronics packaging. It is necessary to ensure that the maximum ultrasonic vibration displacement occurs at or near the tip of the bonding tool (capillary) for optimal performance. In this study, amplitude profiles of ultrasonic vibrations along capillaries were measured with load using a laser interferometer. This provided valuable in...
متن کاملUltrasonic technique for imaging tissue vibrations: preliminary results.
We propose an ultrasound (US)-based technique for imaging vibrations in the blood vessel walls and surrounding tissue caused by eddies produced during flow through narrowed or punctured arteries. Our approach is to utilize the clutter signal, normally suppressed in conventional color flow imaging, to detect and characterize local tissue vibrations. We demonstrate the feasibility of visualizing ...
متن کاملHypercholesterolemia boosts joint destruction in chronic arthritis. An experimental model aggravated by foam macrophage infiltration
OBJECTIVE The aim of this study was to determine whether hypercholesterolemia increases articular damage in a rabbit model of chronic arthritis. METHODS Hypercholesterolemia was induced in 18 rabbits by administrating a high-fat diet (HFD). Fifteen rabbits were fed normal chow as controls. Chronic antigen-induced arthritis (AIA) was induced in half of the HFD and control rabbits, previously i...
متن کاملAcoustic streaming induced by ultrasonic flexural vibrations and associated enhancement of convective heat transfer.
Acoustic streaming induced by ultrasonic flexural vibrations and the associated convection enhancement are investigated. Acoustic streaming pattern, streaming velocity, and associated heat transfer characteristics are experimentally observed. Moreover, analytical analysis based on Nyborg's formulation is performed along with computational fluid dynamics (CFD) simulation using a numerical solver...
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ژورنال
عنوان ژورنال: Journal of Colloid and Interface Science
سال: 1993
ISSN: 0021-9797
DOI: 10.1006/jcis.1993.1465