Results 241 to 250 of about 4,825,318 (291)
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2013
Diffusion is the transport of material due to concentration gradients or more precisely due to gradients in the chemical potential. Mass transfer is commonly described as diffusional phenomena in the presence of convective motion. Diffusion and mass transfer play a significant role in many materials processing operations.
Manabu Iguchi, Olusegun J. Ilegbusi
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Diffusion is the transport of material due to concentration gradients or more precisely due to gradients in the chemical potential. Mass transfer is commonly described as diffusional phenomena in the presence of convective motion. Diffusion and mass transfer play a significant role in many materials processing operations.
Manabu Iguchi, Olusegun J. Ilegbusi
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Turbulent mixing with physical mass diffusion
Physical Review E, 2006Simulated mixing rates of the Rayleigh-Taylor instability for miscible fluids with physical mass diffusion are shown to agree with experiment; for immiscible fluids with physical values of surface tension the numerical data lie in the center of the range of experimental values.
Xinfeng, Liu +3 more
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1987
Since diffusion and convection in melts play a significant role in most processes involving fluids, there has been an increasing interest to understand the underlying mechanisms and to obtain accurate data on these properties. Unfortunately all terrestrial experiments are degraded by gravity-driven flow, which makes it virtually impossible to carry out
Y. Malmejac, G. Frohberg
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Since diffusion and convection in melts play a significant role in most processes involving fluids, there has been an increasing interest to understand the underlying mechanisms and to obtain accurate data on these properties. Unfortunately all terrestrial experiments are degraded by gravity-driven flow, which makes it virtually impossible to carry out
Y. Malmejac, G. Frohberg
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Stability of mass action reaction–diffusion systems
Nonlinear Analysis: Theory, Methods & Applications, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mincheva, Maya, Siegel, David
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Convective diffusion in mass bubbling
Journal of Engineering Physics, 1971A model of spherical cells with a Happel free boundary is used to solve the problem of convective diffusion in mass bubbling. The solutions obtained differ from those already published in respect of a factor which allows for the restricted character of the motion of the bubbles.
L. N. Koltunova +2 more
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The diffusion of a mass genetic screening programme
Journal of Biosocial Science, 1978SummaryThis paper reports the diffusion of knowledge of screening for a genetic disorder (Tay–Sachs disease) in two fairly well defined, urban, Jewish populations in the Baltimore and Washington metropolitan areas, and on some of the sociological variables which influence the diffusion. Differences between the two populations are shown.
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Effective Mass Diffusivity in Composites
Journal of Composite Materials, 2002Gas diffusion is important in composite manufacturing, while moisture diffusion is important for composite performance. In this study, analytical models are developed to predict the mass diffusivity of both square and hexagonal arrays of cylindrical cylinders.
Shoujie Li, L. James Lee, Jose Castro
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Mass Diffusion in Process Metallurgy
Diffusion Foundations, 2015Diffusion phenomena are of great importance in materials processing wherein atomic, molecular or ionic species are distributed within a phase or among different phases. Though the phenomenological equation describing the diffusion phenomena including the bulk flow arising out of diffusion in fluid and the phenomena of Kirkendall shift in substitutional
Viswanathan Neelakantan Nurni +2 more
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Separation of liquids by mass diffusion
AIChE Journal, 1963AbstractMass diffusion studies were carried out in a diaphragm diffusion cell with the liquid system methyl alcohol, n‐propyl alcohol, isobutyl alcohol. Experiments were conducted over a wide range of separating agent counterflow. The separation factor was approximately doubled and the yield decreased three orders of magnitude when the counterflow was ...
F. O. Shuck, H. L. Toor
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The fundamentals of thermal-mass diffusion analogy
Microelectronics Reliability, 2015Abstract The fundamentals in thermal-mass diffusion analogy are developed and the misunderstandings are clarified. The continuity of the “wetness” or, more appropriately, the “fractional saturation”, w = C / C sat , is fundamentally proven using the equality principle of chemical potential.
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