نتایج جستجو برای: electric conduction

تعداد نتایج: 179575  

Journal: :CoRR 2015
Jose Morales-Escalante Irene M. Gamba Yingda Cheng Armando Majorana Chi-Wang Shu James R. Chelikowsky

The purpose of this work is to incorporate numerically, in a discontinuous Galerkin (DG) solver of a Boltzmann-Poisson model for hot electron transport, an electronic conduction band whose values are obtained by the spherical averaging of the full band structure given by a local empirical pseudopotential method (EPM) around a local minimum of the conduction band for silicon, as a midpoint betwe...

Journal: :Nanoscale 2014
Zhongjin He Ben Corry Xiaohua Lu Jian Zhou

Control of mass transport through nanochannels is of critical importance in many nanoscale devices and nanofiltration membranes. The gates in biological channels, which control the transport of substances across cell membranes, can provide inspiration for this purpose. Gates in many biological channels are formed by a constriction ringed with hydrophobic residues which can prevent ion conductio...

Journal: :Circulation research 2010
Lucile Miquerol Natividad Moreno-Rascon Sabrina Beyer Laurent Dupays Sigolène M Meilhac Margaret E Buckingham Diego Franco Robert G Kelly

RATIONALE The ventricular conduction system controls the propagation of electric activity through the heart to coordinate cardiac contraction. This system is composed of specialized cardiomyocytes organized in defined structures including central components and a peripheral Purkinje fiber network. How the mammalian ventricular conduction system is established during development remains controve...

Journal: :The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science 1900

Journal: :Circulation. Arrhythmia and electrophysiology 2011
Ravi Ranjan Ritsushi Kato Menekhem M Zviman Timm M Dickfeld Ariel Roguin Ronald D Berger Gordon F Tomaselli Henry R Halperin

BACKGROUND Ablation has become an important tool in treating atrial fibrillation and ventricular tachycardia, yet the recurrence rates remain high. It is well established that ablation lines can be discontinuous and that conduction through the gaps in ablation lines can be affected by tissue heating. In this study, we looked at the effect of tissue conductivity and propagation of electric wave ...

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