منابع مشابه
The Electrical Bidomain Model: A Review
Bidomain model is a mathematical representation of the anisotropic electrical properties of cardiac tissue. It is used to simulate cardiac electrical tissue computationally and to study the stimulation of cardiac tissue and defibrillation of the heart. The model is developed using realistic physiological parameter values based on experimental measurement. The first part of this review describes...
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Bidomain models have most commonly used to simulate cardiac tissue. They have only infrequently been used to model neural tissue as they are often computationally intensive and other modeling techniques such as the core conductor model are more appropriate for studying phenomena such as propagation in neural systems. A bidomain model of an aplysia abdominal ganglion was created using COMSOL Mul...
متن کاملA model preconditioner for the Bidomain problem in electrocardiology
We introduce a preconditioner for the solution of the Bidomain system governing the propagation of action potentials in the myocardial tissue, represented by a degenerate parabolic set of nonlinear reaction-diffusion equations. The nonlinear term describes the ion flux at the cellular level. The degenerate nature of the problem results in a severe ill conditioning of its discretization. Our pre...
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deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...
Electromagnetic extracardiac fields simulated with a bidomain propagation model
1 Introduction First idealized models describing the normal activation sequence in the human heart were reported over two decades ago [1, 2]. Mainly due to computational limitations, the models did not include myocardial anisotropy nor physiological propagation. On the basis of anisotropic bidomain theory [3] and cellular automata theory [4], development of more realistic whole-heart models hav...
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ژورنال
عنوان ژورنال: ISRN Tissue Engineering
سال: 2013
ISSN: 2314-4696
DOI: 10.1155/2013/863689