Papers – Page 10 – TechConnect Briefs

Parameter Preserving Model Order Reduction of a Flow Meter

Moosmann C., Rudnyi E.B., Greiner A., Korvink J.G., Hornung M., IMTEK, University of Freiburg, DE

Model order reduction is known to work reliably for MEMS simulations and can beused to speed up transient and harmonic computations tremendously. However, using standard model reduction techniques the generated reduced models are only able [...]

Modeling of Laser Assisted Direct Imprinting Process Based on Pulsed Laser Heating and Elastodynamic Theory

Lee Y-C, Chuang C-H, Wang D-B, Liu C-P, Hsiao F-B, National Cheng Kung University, TW

Laser Assisted Direct Imprinting (LADI) is an efficient and direct way for fabricating nanostructures. In short, a quartz mold with nano-features is first pressed against a sample. Upon radiating a short laser pulse on the [...]

High Accuracy Exponential Function Generator for Analog Signal Processing

Popa C., University Politehnica of Bucharest, RO

A new CMOS current-mode pseudo-exponential circuit based on the superior-order Taylor series expansion will be presented. The advantage of the circuit with respect to the previous reported similar ones is the smaller value of the [...]

Multiscale Treatment of Thin-Film Lubrication

Wu Z-B, Diestler D.J., Zeng X.C., Chinese Academy of Sciences, CN

A multiscale technique that combines an atomistic description of the interfacial (near) region with a coarse-grained (continuum) description of the far regions of the solid substrates is proposed. The new hybrid technique, which represents an [...]

3D Atomic Holographic Optical Storage Nanotechnology

Thomas M.E., Colossal Storage Corporation, US

Colossal Storage Inc. has exclusive license patent rights on new ways of non - contact reading and writing with non destructive reading of information to a ferroelectric molecule. These methods will be used to develop [...]

Long-Wavelength Approximation Theory of Light Reflection from Nanoscale Anisotropic Layered Media

Adamson P., University of Tartu, EE

Nanoscale anisotropic thin films and multilayers are of most interest in surface science and nanotechnology. A widespread way to probe nanometric layers is to employ optical reflection methods. But the use of exact equations to [...]

An Atomistic Simulation Study of Carbon Nanostructure Growth in the Porosity of Different Zeolites

Roussel T., Bichara C., Pellenq R.J.-M., Centre de Recherche en Matière Condensée et Nanosciences, CNRS, FR

In this work, we present Grand Canonical Monte-Carlo simulation results for the adsorption of carbon vapour in the pores of various zeolites: AlPO4-5, silicalite and Faujasite (both in its sodium and siliceous form). The carbon-carbon [...]

Reliability of Atomistic-Continuum Modeling Simulations for Problems in Molecular Statics

Prudhomme S., Bauman JP., Oden J.T., The University of Texas at Austin, US

Multi-scale computational modeling aims at developing systematic techniques for bridging scales between atomistic models and continuum models in order to increase the speed of dynamical calculations. Continuum level models can simulate large volumes of material, [...]

Energetics of Non-Uniformly Alloyed Ge(Si)/Si(001) Quantum Dots

Lang C., Nguyen-Manh D., Cockayne D.J.H., University of Oxford, UK

We have obtained for the first time quantitative data about the energetics of alloyed Ge/Si Quantum Dots (QDs) from atomistic simulations which take into account the non-uniformity of the alloying profile. With the algorithm we [...]

Ion Sources for Biomolecules with Controlled Superposition of Electric and Pneumatic Fields

Hieke A., Ciphergen Biosystems, Inc., US

As previously reported the design of advanced ion sources for collisionaly cooled biomolecules required the development of an advanced multi-physics simulation system GEMIOS (Gas and Electromagnetic Ion Optical Simulator). Recent research based on such GEMIOS [...]