نتایج جستجو برای: bubble formation

تعداد نتایج: 542531  

The success of flotation operation depends upon the thriving interactions of chemical and physical variables. In this work, the effects of particle size, bubble size, and collector dosage on the bubble loading in a continuous flotation column were investigated. In other words, this work was mainly concerned with the evaluation of the true flotation response to the changes in the operating varia...

2004
I. Akhatov

A new approach for the theoretical description of structure formation in acoustic avitation is developed. The model consists of two coupled partial differential equations describing the spatiotemporal evolution of the sound field amplitude and the bubble concentration. Linear stability analysis and numerical simulation• of the pattern formation are presented. The relation between this approach ...

Journal: :Zoological science 2010
Chao-Kai Kang Tsung-Han Lee

The male Siamese fighting fish, Betta splendens, builds a bubble nest on the water surface to care for offspring during the reproductive period. To our knowledge, this study is the first to determine the composition of the bubble nest and to compare the pharyngeal organs of male and female Siamese fighting fish to determine the relationship between the pharyngeal organ and the ability to make b...

2017
C Walsh E Stride U Cheema N Ovenden

The growth of bubbles within the body is widely believed to be the cause of decompression sickness (DCS). Dive computer algorithms that aim to prevent DCS by mathematically modelling bubble dynamics and tissue gas kinetics are challenging to validate. This is due to lack of understanding regarding the mechanism(s) leading from bubble formation to DCS. In this work, a biomimetic in vitro tissue ...

Journal: :Interface focus 2015
John R Blake David M Leppinen Qianxi Wang

Cavitation and bubble dynamics have a wide range of practical applications in a range of disciplines, including hydraulic, mechanical and naval engineering, oil exploration, clinical medicine and sonochemistry. However, this paper focuses on how a fundamental concept, the Kelvin impulse, can provide practical insights into engineering and industrial design problems. The pathway is provided thro...

Journal: :Journal of Physics: Conference Series 2013

Journal: :تحقیقات اقتصادی 0
علی اکبر قلی زاده استادیار و عضو هیئت علمی دانشگاه بوعلی سینا بهناز کمیاب دانشجوی دکترای اقتصاد دانشگاه بوعلی سینا

cycles fluctuations in housing investment and national economy, variation in consumers and producers behavior, deviation in allocation of economic resources, the aggravation of capital transfer in asset market, the variation of income distribution pattern and imbalance in resource and expenses are the consequences of fluctuations in housing prices. these consequences and its control and recogni...

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