论文标题
活性脉冲的蠕动
Peristalsis by pulses of activity
论文作者
论文摘要
通过积极产生的肌肉收缩浪潮的蠕动是产生运动系统运动的最基本方法之一。我们表明,蠕动可以通过一系列通过被动物质传播的局部活性的矩形孤立波。我们的分析基于FPU型离散模型,占主动应力的占主导地位,我们揭示了这个关键制度的问题中存在的存在,我们认为这在生理上是有利的。
Peristalsis by actively generated waves of muscle contraction is one of the most fundamental ways of producing motion in living systems. We show that peristalsis can be modeled by a train of rectangular-shaped solitary waves of localized activity propagating through otherwise passive matter. Our analysis is based on the FPU-type discrete model accounting for active stresses and we reveal the existence in this problem of a critical regime which we argue to be physiologically advantageous.