| 两阶段脉冲控制螺旋波的数值模拟 |
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| 引用本文： | 杨翠云,刘海英,唐国宁. 两阶段脉冲控制螺旋波的数值模拟[J]. 计算物理, 2014, 31(5): 625-630 |
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| 作者姓名： | 杨翠云 刘海英 唐国宁 |
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| 作者单位： | 1. 广西师范大学物理科学与技术学院, 广西 桂林 541004;2. 桂林师范高等专科学校物理与工程技术系, 广西 桂林 541001 |
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| 基金项目： | 国家自然科学基金，广西教育厅科研项目 |
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| 摘 要： | 提出两种两阶段的螺旋波控制方法,第一阶段用正相脉冲力作用快变量,第二阶段用反相脉冲力作用快变量或用正相脉冲力作用慢变量,用修改后的Bär模型进行数值模拟,结果表明:两阶段的脉冲控制方法比单阶段控制方法更有效地控制螺旋波,作用力可以减少到后者力大小的38%~55%.结果建议,可以通过两阶段控制螺旋波的方法改进心脏电除颤.
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| 关 键 词： | 可激发介质 螺旋波 脉冲控制 |
| 收稿时间： | 2013-09-15 |
| 修稿时间： | 2014-01-24 |
Simulation on Control of Spiral Wave by Two-stage Pulse Force |
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| YANG Cuiyun,LIU Haiying,TANG Guoning. Simulation on Control of Spiral Wave by Two-stage Pulse Force[J]. Chinese Journal of Computational Physics, 2014, 31(5): 625-630 |
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| Authors: | YANG Cuiyun LIU Haiying TANG Guoning |
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| Affiliation: | 1. College of Physical Science and Technology, Guangxi Normal University, Guilin 541004, China;2. Department of Physics and Engineering Technology, Guilin Normal College, Guilin 541001, China |
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| Abstract: | Modified Bär model is used to study suppression of spiral wave. Methods of suppressing spiral wave by two-stage pulse force control are proposed. In the first stage,fast variable of the model is acted by a positive rectangular pulse force. In the second stage,direction of force is changed to the opposite or the force is acted on the slow variable. It shows that two-stage pulse control method is more efficient than one-stage method,and magnitude of the force is 38%~55% of the latter. It suggests that two-stage method of control of spiral wave can improve defibrillation efficiency. |
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| Keywords: | excitable medium spiral wave pulse control |
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