US – Page 178 – TechConnect Briefs

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 [...]

Design of Microassembly through Process Modeling in Virtual Reality

Das A.N., Stephanou H.E., University of Texas at Arlington, US

In this work we discuss how construction of microsystems via microassembly can be optimized through simulation of the entire process in virtual reality prior to actual execution. We exercise a holistic approach towards microscale manufacturing [...]

Multiscale Rheology: New Results for the Kinetic Scale

Kallemov B., H. Miller G., Mitran S., Trebotich D., Lawrence Berkeley National Laboratory, US

We present several new results on the kinetic, i.e., mesoscale, level of a continuum-kinetic-microscopic approach to multiscale modeling of complex fluids. We choose the microscopic level as Kramers’ bead-rod model for polymers, which we describe [...]

From Games and Films to Molecular Simulation and Design

Olguin C., Zhao W., Autodesk, Inc., US

Propelled by the multi-billion dollar game and film industries, CG software has evolved dramatically in sophistication. Effects range from realistic explosions to the chaotic movement driven by wind and other fluids. This paper describes our [...]

Expanding Capabilities of a Machine Vision System for Analysis of Drops-in-flight

Kipman Y., Mehta P., Wang S-W., ImageXpert Inc., US

Measuring in-flight characteristics of ink drops under different conditions can provide insight into relationships and interactions, helping drive system and consumable optimization for manufacturers of inkjet heads, head driver electronics, inks, and integrated printing and [...]

Advancements in Ink-Jet Deposition of Carbon Nanotube Materials for Printed Electronics

Turner S., Brewer Science, US

Advancements in the separation, purification, and post processing of metallic carbon nanotubes are enabling these materials to be used in new printed electronic devices. While CNTs have been researched for over 10 years, recent innovations [...]

Numerical Simulation of the Solidification of Water-Based Nanofluid

El Hasadi Y.M.F., Khodadadi J.M., Auburn University, US

Nanofluids are colloidal suspensions which they consist particles in the size range of 100-1 nm. In the recent years nanofluids kept the attention of the scientific community due to their improved thermal physical properties compared [...]

Novel Chemistry and Dispersive Techniques for Diverse Applications

Hladik M., Brewer Science, US

Carbon nanotubes (CNTs) do not disperse very easily in organic media or at low viscosities. Thus, to produce a nanomaterial coating that can be applied by various methods, such as screen printing or ink-jet printing, [...]

Prediction of Thermal Conductivity of Liquid Methane/Ethane-Cu Nanofluids via Molecular Dynamics Simulations

Babaei H., Khodadadi J.M., Auburn University, US

The improvement of thermal conductivity by suspending nanoparticles in two hydrocarbon-based nanofluids is investigated by means of molecular dynamics simulations. Base fluids are methane and ethane and nanoparticles are pure copper. Two temperatures for which [...]

Microchannel for IOP Relief and Glaucoma Treatment

Barth D., Heureaux J., Pilapil B., Ponce de Leon P., Zhao K., Stevens Institute of Technology, US

An implantable biomedical device intended for glaucoma treatment was designed, modeled, fabricated, and tested. Glaucoma is a degenerative eye disease that is normally characterized by high Intraocular Pressure (IOP) and causes progressive vision loss. According [...]