Organizing Centers in Chemically Excitable Media

教授亚瑟温弗里是由补助金的支持， 理论和计算化学课程执行 可激发介质的理论和实验研究。 可激发介质是一种化学系统， 一个超过阈值的刺激。 这些研究 对各种应用产生深远影响，例如： 神经冲动的传递，心肌收缩 包括致命的心律失常，以及固体燃料中的燃烧稳定性 火箭 在实验室和超级计算机中，温弗里研究波 可激发介质中的几何，其方程足够好， 已知允许实验室之间的关键比较 测量和计算机模拟。 特别是他 研究这种三维的自组织行为 流体中类似涡环形成的介质。 在 理论上，这些组织中心存在于各种各样的 拓扑上不同的形式，其中一些可能是动态的 对于某些特定尺寸稳定。 知名 Belousov-Zhabotinsky化学反应已被用作 综合模型系统，以实验证实数值 模拟结果

Professor Arthur Winfree is supported by a grant from the Theoretical and Computational Chemistry Program to perform theoretical and experimental studies on excitable media. Excitable media are chemical systems which respond dramatically to a stimulus that exceeds some threshold. These studies have a far reaching impact on such diverse applications as: transmission of nerve impulses, heart muscle contraction including lethal arrhythmias, and burn stability in solid-fuel rockets. In the laboratory and in supercomputers Winfree studies wave geometry in excitable media whose equations are well enough known to permit critical comparison between laboratory measurements and computer simulations. In particular he studies the self-organizing behavior of such 3-dimensional media which resembles vortex ring formation in fluids. In theory, these organizing centers exist in a variety of topologically distinct forms, some of which may be dynamically stable for certain characteristic sizes. The well-known Belousov-Zhabotinsky chemical reaction has been used as a synthetic model system to experimentally confirm numerically simulated results.