Results 211 to 220 of about 386,001 (265)
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Advances in Space Research, 1988
Abstract Dimensionless number analysis indicates that diffusion-controlled conditions with liquid samples having characteristic dimensions larger than one millimetre can only be established under microgravity conditions. Consequently, heat and mass transport properties of fluids can only be quantitatively investigated in space.
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Abstract Dimensionless number analysis indicates that diffusion-controlled conditions with liquid samples having characteristic dimensions larger than one millimetre can only be established under microgravity conditions. Consequently, heat and mass transport properties of fluids can only be quantitatively investigated in space.
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2020
It is a well-known fact that physical and mechanical properties of crystalline solid materials depend on the type of atomic structure and related grain morphology. Of special interest are some steels (Fe), silicon (Si), and germanium (Ge) since they have been studied extensively.
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It is a well-known fact that physical and mechanical properties of crystalline solid materials depend on the type of atomic structure and related grain morphology. Of special interest are some steels (Fe), silicon (Si), and germanium (Ge) since they have been studied extensively.
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Diffusion of clusters with randomly growing masses
Physical Review E, 1995Diffusion of fractal clusters of dimension ${\mathit{d}}_{\mathit{f}}$ in a three-dimensional space is investigated. The diffusion process is assumed to be modeled by a standard parabolic diffusion equation but with a random diffusion coefficient.
Łuczka, Jerzy +2 more
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Analysis of nonlinear mass and energy diffusion
Physical Review A, 1985Before a complete analysis can be made of the radial transport of mass and energy in the presence of magnetic fields, the nonlinear diffusion of mass and energy across magnetic fields must be well understood. ' In pursuit of this goal, this paper is concerned with a mathematical analysis of a simple model of slow diffusive selfrelaxation of a ...
, Rosenau, , Hyman
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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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