Guangrui Wang

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The attracting and repelling of spiral waves in a two-dimensional excitable medium in the presence of localized excitability inhomogeneities are studied. The choice of two effects depends on the comparison of excitabilities inside and outside the localized obstacle. We inspect the changes in attracting and repelling behaviors with respect to the size of the(More)
In this paper, the numerical simulation for evolution and control of spiral waves in 2D cardiac excitable media is performed; it can be represented as modified FitzHugh-Nagumo (FHN) model by selecting suitable parameter values. When the plane wave being cut, the system can evolve into a spiral wave. The excitability of media can produce effect on the(More)
In this paper are proposed four heartbeat models which correspond to two different positions of the ectopic pacemaker and two coupling styles of the sinus and ectopic pacemakers. The models computed are based on the modified Ikeda phase resetting model. Most of the heartbeat modes are periodic; they exhibit "Arnold's tongue" structure in parameter plane of(More)
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