Informatics, Modeling & Simulation – Page 23

Smectic structure of Nano Crystalline Cellulose Established by Large-Scale Parallel Molecular Dynamic Simulations

Kadiri Y., Simon D., Picard G., Ahuntsic College, CA

Structural and optical properties of Nano Crystalline Cellulose (NCC) in liquid solutions and in solid films were investigated by large-scale parallel molecular dynamics (MD) simulation using empirical Coulombian interaction potentials. Our calculations give a good [...]

SUGARX: A Online Tool That Bridges the Gap Between Experiment and Simulation

Marepalli P., Li F., Clark J.V., Purdue University, US

We present a pioneering online tool called SugarX that, for the first time, bridges the gap between experiment and simulation. Our tool is available online at nanoHUB.org with remote experimental control and simulation. A web [...]

Numerical Study on the Mixing Performance of Ring-Type Electroosmotic Micromixer with Configurations of Obstacle in the Mixing Chamber

Seo H.S., Kim Y.J., Sungkyunkwan University, KR

Rapid and efficient mixing is important for many microfluidic applications but challenging process in many microfluidic systems that perform complex chemical synthesis and analysis. Most existing microfluidic mixing systems are limited to low Reynolds number [...]

CFD-Assisted Design and Optimization of a Pharmacokinetic Microfluidic System

Moeini Sedeh M., Khodadadi J.M., Hong J.W., Cramer K.A., Hamon M., Auburn University, US

In this research, a microfluidic system was designed and optimized to carry out in vitro pharmacokinetic studies of drug candidates in the liver. Computational fluid dynamics (CFD) was called on to assist in the system [...]

A Regional Model for Threshold Switching in Phase Change Memory

Wang L., Peking University Shenzhen Graduate Schoo, CN

In this paper, a regional model for threshold switching is presented based on the space charge effect in Phase Change Memory (PCM). In this model, the PCM unit is divided into two parts according to [...]

A Negative Index Metamaterial Waveguide for De-Multiplexing

Vidal X., Baev A., Furlani E.P., Prasad P.N., The Institute for Lasers, Photonics and Biophotonics, US

In this presentation, we propose a novel metamaterial-based waveguide coupler for use as a de-multiplexer at telecommunication wavelengths. Currently, there have been relatively few studies of guided modes in left-handed waveguides; these have indentified some [...]

Advanced physics for simulation of ultrascaled devices with UTOXPP Solver

Garetto D., Rideau D., Tavernier C., Leblebiciand Y., Schmid A., Jaouen H., IBM corp., FR

As the conventional scaling down of MOSFET dimensions faces physical and economical limits, the performances of novel solutions such as high-K dielectrics, mechanical strain and substrate orientation or alternative device structures, such as fully-depleted SOI [...]

Bottom-up device simulations: modeling electrical currents on the atomic scale

Blom A., Stokbro K., QuantumWise A/S, DK

As device features approach atomic dimensions, simulations of electrical currents need to be based on a quantum-mechanical description of the system. New phenomena then appear which can be exploited for novel device functionality, but also [...]

Performance Study of Nitride-Based Gunn Diodes

Aloise G., Vitanov S., Palankovski V., Advanced Material and Device Analysis Group, AT

In this work, we assess the performance of InN Gunn diodes, as a superior alternative to GaN. We perform two-dimensional mixed-mode device/circuit simulation accounting for self-heating effects. We verify available theoretical results for GaN-based Gunn [...]

Simulation of Field-Plate Effects on Surface-State-Related Lag and Current Slump in GaAs FETs

Tanaka T., Itagaki K., Nakajima A., Horio K., Shibaura Institute of Technology, JP

In this study, we carry out two-dimensional transient analysis of field-plate GaAs MESFETs by taking surface states into account. Quasi-pulsed current-voltage curves are derived from the transient characteristics. We show that drain lag and current [...]