Nonlinear Chemical Dynamics

非线性化学动力学

• 批准号: 9988463
• 负责人: Irving Epstein
• 金额: $ 75.72万
• 依托单位: Brandeis University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-05-01 至 2004-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9988463&HistoricalAwards=false
• 关键词: Nonlinear; Chemical; Dynamics

Irving Epstein and Anatol Zhabotinsky of Brandeis University are supported by the Theoretical and Computational Chemistry Program to pursue research on nonlinear chemical dynamics, specifically experimental and computational investigations of pattern-formation in reaction-diffusion systems. Light will be used to produce new types of patterns. A rarely studied bifurcation (the short-wave instability) will be studied under global negative feedback, and forced and unforced chaotic and multiperiodic chemical oscillators will be investigated. Pattern formation in nonuniform media, and in a new hypophosphite-containing chemical system, will be explored.Pattern formation in chemistry is a central problem in modern macroscopic chemical kinetics. Reaction-diffusion systems constitute the most convenient analog models for pattern formation in neurobiology, catalysis, and ecology. These phenomena involve global feedback and/or the propagation of chemical waves through nonuniform media.

布兰代斯大学的Irving Epstein和Anatol Zhabotinsky得到了理论和计算化学项目的支持，从事非线性化学动力学的研究，特别是对反应扩散系统中模式形成的实验和计算研究。光将被用来制造新型的图案。在全局负反馈条件下，将研究一个很少被研究的分支（短波不稳定性），并研究强制和非强制混沌和多周期化学振子。在非均匀介质中，以及在一种新的含次磷酸盐的化学体系中，将探索图案的形成。化学中的模式形成是现代宏观化学动力学中的一个中心问题。反应-扩散系统是神经生物学、催化学和生态学中模式形成最方便的模拟模型。这些现象包括全局反馈和/或化学波在非均匀介质中的传播。