Diffusion, Self-Diffusion and Cross-Diffusion
نویسندگان
چکیده
منابع مشابه
Cross-National Diffusion of Mental Health Policy
Background Following the tenets of world polity and innovation diffusion theories, I focus on the coercive and mimetic forces that influence the diffusion of mental health policy across nations. International organizations’ mandates influence government behavior. Dependency on external resources, namely foreign aid, also affects governments’ formulation of national policy. And finally, mounting...
متن کاملRelationship between diffusion, self-diffusion and viscosity
We investigate the experimental limits of validity of the Stokes–Einstein equation. There is an important difference between diffusion and self-diffusion. The experimental evidences show, that in the case of selfdiffusion the product Dg/T is constant and the Stokes–Einstein equation is still valid. On the other hand, comparison of existing experimental data, on viscosity g and diffusion coeffic...
متن کاملcross-national diffusion of mental health policy
background following the tenets of world polity and innovation diffusion theories, i focus on the coercive and mimetic forces that influence the diffusion of mental health policy across nations. international organizations’ mandates influence government behavior. dependency on external resources, namely foreign aid, also affects governments’ formulation of national policy. and finally, mounting...
متن کاملCross-diffusion Induced Instability and Stability in Reaction-diffusion Systems
In a reaction-diffusion system, diffusion can induce the instability of a uniform equilibrium which is stable with respect to a constant perturbation, as shown by Turing in 1950s. We show that cross-diffusion can destabilize a uniform equilibrium which is stable for the kinetic and self-diffusion reaction systems; on the other hand, cross-diffusion can also stabilize a uniform equilibrium which...
متن کاملDiffusion, Cross-Diffusion, and Their Spike-Layer Steady States
where ut = ∂u ∂t and ∆ =∑ni=1 ∂2 ∂xi is the usual Laplace operator, Ω is a bounded smooth domain in Rn, υ is the unit outer normal to ∂Ω, and u0 is a realvalued continuous function (not identically zero) representing the initial heat distribution. Here the boundary condition implies that (1) is an isolated system. It is well known that the solution u(x, t) of (1) becomes smooth as soon as t bec...
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ژورنال
عنوان ژورنال: Journal of Differential Equations
سال: 1996
ISSN: 0022-0396
DOI: 10.1006/jdeq.1996.0157