Subdiffusion, chemotaxis, and anomalous aggregation.

Subdiffusion, chemotaxis, and anomalous aggregation.
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次扩散、趋化性和异常聚集。

DOI:
10.1103/physreve.83.021110
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发表时间:
2011
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
通讯作者:
S. Fedotov
S. Fedotov
中科院分区:
--
文献类型:
--
作者:
S. Fedotov

文献摘要

被引文献

相似文献

我们提出了一种非线性随机游走模型,适用于趋化性和异常次扩散传输的分析。当随机游走的转变率取决于停留时间、趋化物质和人口密度时,我们推导出人口密度的主方程。我们引入了异常的趋化敏感性并发现了异常的聚集现象。因此,我们对众所周知的趋化崩溃效应提出了不同的解释。
We propose a nonlinear random walk model which is suitable for the analysis of both chemotaxis and anomalous subdiffusive transport. We derive the master equations for the population density for the case when the transition rate for a random walk depends on residence time, chemotactic substance, and population density. We introduce the anomalous chemotactic sensitivity and find an anomalous aggregation phenomenon. So we suggest a different explanation of the well-known effect of chemotactic collapse.