A major health problem is caused by nonlinear phenomena, such as spatial waves and spatiotemporal chaos in cardiac tissue. The nonlinear phenomena induce an irregular activation in cardiac tissue, ventricular tachycardia and ventricular fibrillation. Such phenomena can be realized in excitable media, a mathematical model in which active waves can be propagated without damping. This report reviews our recent results which provided a simple systematic design procedure for the periodic impulsive force and the time-continuous feedback force for eliminating a traveling wave in a one-dimensional excitable medium.
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