We develop and demonstrate the capability of a high order accurate finite difference weighted essentially non-oscillatory (WENO) solver for the direct numerical simulation of transients for a two space dimensional Boltzmann transport equation (BTE) coupled with the Poisson equation modeling semiconductor devices such as the MESFET and MOSFET. We compare the simulation results with those obtaine...

Transport and accumulation of biomolecules, particularly DNA, in active electronic chips are investigated through numerical modeling and experimental verification. Various geometric and design configurations of electronically active DNA chips are considered. Further, we investigate the effect of electric field distribution on practical design of flow cells and chips. Particular attention is foc...

The drive mode of fluid body in microchannel is a key in microfluidic control system. ElectroOsmotic MicroPump (EOP) is a microfluidic system which is controlled by electric field with no moving parts. EOPs are attracting increasing attention due to the ease of fluid control in complex microchannels. The theory of forming Electro-Osmotic-Flow (EOF) is analyzed and governing equations are given ...

We present a theory and numerical evidence for the existence of a previously unexplored in-plane electric field in collisionless asymmetric magnetic reconnection. This electric field, dubbed the "Larmor electric field," is associated with finite Larmor radius effects and is distinct from the known Hall electric field. Potentially, it could be an important indicator for the upcoming Magnetospher...

Carrier transport in normally-off n GaN/InAlN/AlN/GaN high electron mobility transistors is studied using two-dimensional numerical device simulation. We focus on the n GaN cap layer, which is removed under the gate, and its contribution to drain current. Our simulation results show that despite the high doping density and relatively high carrier concentration in this layer, no significant tran...

this paper presents theoretical and numerical state-of-the-art information in the field of hygro-thermo-mechanical deformation simulation in structural concrete. the aspects discussed include coupled hygro-thermo-mechanical performance of porous materials including concrete, multi-scale simulation of concrete properties especially the volumetric and structural deformation performance, and the m...