细胞内钙离子体系中的双参数内信号随机共振

高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (9): 1727.

细胞内钙离子体系中的双参数内信号随机共振

高凤新, 李亚平, 李前树

北京理工大学理学院, 爆炸实验预防、控制国家重点实验室, 北京100081

收稿日期:2004-03-22 出版日期:2004-09-24 发布日期:2004-09-24
基金资助:
国家自然科学基金(批准号:29873006)资助

Stochastic Resonance of Internal Signal with Two Parameters in Intercellular Calcium Ion System Oscillations

GAO Feng-Xin, LI Ya-Ping, LI Qian-Shu

State Key Laboratory of Prevention and Control of Explosion Disasters, School of Science, Beijing Institute of Technology, Beijing 100081, China

Received:2004-03-22 Online:2004-09-24 Published:2004-09-24

摘要/Abstract

关键词: 内随机共振, 钙离子振荡, 控制参数

Abstract: In a model of intercellular calcium ion system oscillations, internal stochastic resonance(ISR) is investigated under the modulation of two parameters, viz., degree of extracellular stimulation β and leak rate k_f. When either β or k_f is subjected to a noise, ISR can occur. When noise is added to the two parameters simultaneously, internal stochastic bi-resonance(ISBR) occurs. The distance to the bifurcation point is found to be able to enhance or suppress the ISBR, and to affect the number of peaks of ISR.

Key words: Internal stochastic resonance, Ca²⁺ oscillations, Control parameter

中图分类号:

O641

TrendMD:

高凤新, 李亚平, 李前树. 细胞内钙离子体系中的双参数内信号随机共振. 高等学校化学学报, 2004, 25(9): 1727.

GAO Feng-Xin, LI Ya-Ping, LI Qian-Shu. Stochastic Resonance of Internal Signal with Two Parameters in Intercellular Calcium Ion System Oscillations. Chem. J. Chinese Universities, 2004, 25(9): 1727.

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