SGER: Temporal and Spatial Scales in Models of Excitable Media

SGER：可兴奋媒体模型中的时空尺度

• 批准号: 0096692
• 负责人: Harold Hastings
• 金额: $ 7.99万
• 依托单位: Hofstra University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0096692&HistoricalAwards=false
• 关键词: SGER; Temporal; Spatial; Scales; Models

Spiral waves are a dynamical behavior of excitable media, that is, media in which small changes from the rest state die out and large changes generate oscillatory behavior. Examples of excitable media in biology include the heart, the retina, and calcium waves in various organs, such as the intestine. Chemical systems also exhibit these types of changes and provide a model system for studying how onset and stability of spiral waves are affected by different factors present in biological systems. The chemical reaction will be analyzed both mathematically and computationally. Results should lead to a better understanding of dynamical regime of spiral wave onset and stability in biological systems.

螺旋波是可激介质的一种动力学行为，也就是说，在可激介质中，静态的微小变化会消失，而大的变化会产生振荡行为。生物学中可兴奋介质的例子包括心脏、视网膜和各种器官（如肠道）中的钙波。化学系统也表现出这些类型的变化，并为研究生物系统中存在的不同因素如何影响螺旋波的发生和稳定性提供了一个模型系统。化学反应将用数学方法和计算方法进行分析。结果将有助于更好地理解生物系统中螺旋波发生的动力机制和稳定性。