Results 221 to 230 of about 18,568,531 (263)
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Fluctuations in Diffusion Processes in Microgravity
Annals of the New York Academy of Sciences, 2006Abstract: It has been shown recently that diffusion processes exhibit giant nonequilibrium fluctuations (NEFs). That is, the diffusing fronts display corrugations whose length scale ranges from the molecular to the macroscopic one. The amplitude of the NEF diverges following a power law behavior ∝ q−4 (where q is the wave vector).
S. Mazzoni +3 more
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On the transformation of diffusion processes into the Feller process
Mathematical Biosciences, 1976Abstract Due to the recently revived interest toward the diffusion process proposed by Feller in the population dynamics context, the class of Kolmogorov equations that can be transformed into a similar equation possessing linear infinitesimal variance and affine drift is determined.
R. M. CAPOCELLI, RICCIARDI, LUIGI MARIA
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1973
The discussion of (4.10.8–11) has shown that a temperature gradient in a conductor yields a concentration gradient ▽n with the effect of a diffusion current j = −e D n ▽ r n, where D n is proportional to the electron mobility due to the Einstein relation (4.10.12).
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The discussion of (4.10.8–11) has shown that a temperature gradient in a conductor yields a concentration gradient ▽n with the effect of a diffusion current j = −e D n ▽ r n, where D n is proportional to the electron mobility due to the Einstein relation (4.10.12).
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On coupling of diffusion processes
Journal of Applied Probability, 1983The coupling method is well fitted to be used in the study of the asymptotics of one-dimensional diffusion processes. We give an elementary proof of Orey's theorem in the recurrent case, and establish rate results for tendency towards equilibrium under moment conditions on the speed measure and the initial distributions.
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DIFFUSION PROCESSES IN DYED DETECTORS
Nuclear Tracks, 1981ABSTRACT In order to get a better understanding of the dyed and fluorescent track detectors, the diffusion speed of the swelling agent, the sensitization molecules and the dye have been measured under various conditions. It is shown that the sensitization affects the entire detector while dyeing is restricted to the upper and lower layers of the ...
Lferde, M. +4 more
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Ergodicity of Diffusion Processes [PDF]
, 2017 In this talk, I will discuss ergodic properties of diffusion processes focusing on the rate of convergence of the marginals of the process to the invariant measure with respect to the total variation distance and Wasserstein distance. In particular, I will present sharp conditions in terms of the coefficients of the process (generator) ensuring sub ...
Lazić, Petra, Sandrić, Nikola
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, 1964
Getting an innovation adopted is difficult; a common problem is increasing the rate of its diffusion. Diffusion is the communication of an innovation through certain channels over time among members of a social system.
E. Rogers
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Getting an innovation adopted is difficult; a common problem is increasing the rate of its diffusion. Diffusion is the communication of an innovation through certain channels over time among members of a social system.
E. Rogers
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2013
Diffusison is a phenomenon that refers to the spontaneous movement of molecules or particles along a concentration gradient, where a concentration gradient is difference in the concentrations of substances or molecules between two areas. The movement is from a region of higher concentration to a region of lower concentration.
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Diffusison is a phenomenon that refers to the spontaneous movement of molecules or particles along a concentration gradient, where a concentration gradient is difference in the concentrations of substances or molecules between two areas. The movement is from a region of higher concentration to a region of lower concentration.
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, 2014
The low temperature grain boundary diffusion process using RE70Cu30 (RE = Pr, Nd) eutectic alloy powders was applied to sintered and hot-deformed Nd-Fe-B bulk magnets.
T. Akiya +6 more
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The low temperature grain boundary diffusion process using RE70Cu30 (RE = Pr, Nd) eutectic alloy powders was applied to sintered and hot-deformed Nd-Fe-B bulk magnets.
T. Akiya +6 more
semanticscholar +1 more source