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The oscillation pattern is affected by the change in the diffusion coefficient.

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posted on 03.10.2012, 01:52 by Daisuke Ohshima, Jun-ichiro Inoue, Kazuhisa Ichikawa

(A) There are large changes in the oscillation pattern at low and high diffusion coefficients. At low diffusion coefficients, virtually no oscillation is seen. Right panels show representative oscillations. (B) At diffusion coefficients from 10−12 to 10−11 m2/s, the oscillation frequency stays unchanged. At higher diffusion coefficient, however, the oscillation frequency becomes lower, and at lower diffusion coefficient, it becomes higher. (C) At diffusion coefficient lower than 10−12 m2/s, the amplitude of the first peak increases as the diffusion coefficient increases. But it stays unchanged at higher diffusion coefficients. (D) The time to the first peak stays unchanged until the diffusion coefficient is increased to 10−11 m2/s, and at higher diffusion coefficient, it increases drastically. (E) τp and τd increase by the increases in the diffusion coefficient.