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Maintaining an appropriate amount of spinning reserve (SR) is a necessary condition to keep the reliable operation of power systems. In this paper, a probabilistic method is proposed to determine the optimal SR amount where the reliability levels are well kept. The SR amount is optimized through a reliability constrained unit commitment (RCUC). In the RCUC model the reliability indexes must be smaller...
The shift operator finite difference time domain (SO-FDTD) method is developed to deal with hybrid dispersive media model. First, we have proved that the complex permittivity of hybrid dispersive media model may be described by rational polynomial fraction in jω. Then, by introducing zt defined as a shift operator, the relation between D and E is derived in time domain. The constitutive relation in...
The E1784K mutation in SCN5A was reported as a phenotypic overlap between the Type 3 Long QT syndrome (LQT3) and the Brugada syndrome (BrS). However it is still unclear if the E1784K mutation-induced changes at ionic channel level is sufficient to account for the two phenotypic and how they affect ventricular excitation waves at tissue level. In this study, we used a biophysically detailed computer...
In this paper, we present an integrated model of 3D human ventricle to simulate the effects of ischemia on wave propagation. To deal with the no-flux boundary conditions, a phase-field method is employed. The major advantage of the method is that it can automatically handle the boundary conditions. Through the increasing of concentration of extracellular K+ and ischemic size, the propagation of spiral...
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