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钙离子体系中显式阵发振荡随机共振
  • ISSN号：1001-0645
  • 期刊名称：《北京理工大学学报》
  • 时间：0
  • 分类：O641[理学—物理化学;理学—化学]
  • 作者机构：[1]北京理工大学化学物理研究所,北京100081
  • 相关基金：国家自然科学基金资助项目（20433050）;高等学校学科创新引智计划项目（B07012）
作者： 王莹[1], 李前树[1]
关键词： 钙离子体系, 化学朗之万方程, 内噪音, 阵发振荡, calcium system, chemical Langevin equation, internal noise, bursting oscillations
中文摘要：

采用介观的化学朗之万方程研究了内噪音对于钙离子阵发振荡行为的影响．模拟结果显示，体系的信噪比值在某一内噪音强度下，即某一细胞体积下达到最大．这一行为与随机共振现象相似，称之为显式阵发振荡随机共振．若采用相关时间度量阵发振荡的相关性，则阵发振荡的相关时间也会在某一细胞体积下达到最大．

英文摘要：

The response of calcium bursting oscillation to internal noise is studied by solving mesoscopic chemical Langevin equations. The calculated signal-to-noise ratio （SNR） reaches a maximum at a certain internal noise （i. e. an optimal cell volume）, resembling stochastic resonance, referred to as explicit bursting stochastic resonance in the present work. The correlation time is used to measure the coherence of bursting oscillations. It is demonstrated that the correlation time of the oscillation also exhibits a maximum at a certain cell volume.

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期刊信息
  • 《北京理工大学学报》
  • 北大核心期刊（2011版）
  • 主管单位:中华人民共和国工业和信息化部
  • 主办单位:北京理工大学
  • 主编：黄风雷
  • 地址：北京海淀区中关村南大街5号
  • 邮编：100081
  • 邮箱：blgzw@bit.edu.cn
  • 电话：010-68912326 68913988
  • 国际标准刊号：ISSN：1001-0645
  • 国内统一刊号：ISSN：11-2596/T
  • 邮发代号:82-502
  • 获奖情况:
  • 全国优秀高等学校自然科学学报及教育部优秀科技期...,首届国家期刊奖提名奖,中文核心期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,美国数学评论（网络版）,德国数学文摘,荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,英国英国皇家化学学会文摘,中国北大核心期刊（2000版）
  • 被引量:17163