CA – Page 18 – TechConnect Briefs

Technical Analysis of a Dual-Fuel (Hydrogen and Gasoline) Extended Range Electric Vehicle for Component Selection and Design

Van Wieringen M., Pop-Iliev R., University of Ontario Institute of Technology, CA

Hydrogen is an ideal vehicle fuel for use not only in fuel cells, but also in spark-ignition internal combustion engines. The combustion of Hydrogen fuel offers vastly superior tail-pipe emissions when compared with gasoline and [...]

Inkjet ink containing inorganic doped semiconductor (ZnS:Mn) nanoparticle pigments

Angelo P.D., Farnood R.R., University of Toronto, CA

A jettable inkjet ink containing dispersed inorganic semiconductor (ZnS:Mn) pigments has been prepared using colloidal synthesis. This ink was deposited using an inkjet printer to form printed lines of luminescent material. Different binder polymers were [...]

Predicting PEMFC Pt Catalyst Durability using DFT

Groves M.N., Chan A., Malardier-Jugroot C., Jugroot M., Malardier-Jugroot C., Royal Military College of Canada, CA

DFT calculations using B3LYP/Lanl2DZ on nitrogen doped graphene and single walled carbon nanotube structures are evaluated using Gaussian03 to measure the binding energy between its surface and a Pt atom. This is to characterize the [...]

Determination of droplet shape in digital microfluidic systems using two-dimensional flow analysis

Ahmadi A., Najjaran H., Holzman J.F., Hoorfar M., University of British Columbia Okanagan, CA

A two-dimensional model for fluid flow in a digital microfluidic system is introduced, and the results are compared to experimental data. Resistive flow effects based upon contact line forces, filler effects and shear forces are [...]

Determination of Non-local Elasticity Constants for the Torsional Buckling of Single-Wall Carbon Nanotubes Using Molecular Dynamics

Khademolhosseini F., Rajapakse R.K.N.D., Nojeh A., University of British Columbia, CA

Recently, devices have been developed which use Carbon Nanotubes (CNTs) as torsional spring elements. In order to define the range of applicability of CNTs in such devices, it is important to fully understand their torsional [...]

Effect of Nonlinear Structural Stiffness on the Response of Capacitive MEMS Devices

Shavezipur M., Nieva P., Khajepour A., Hashemi S.M., University of Waterloo, CA

In this paper, a design technique is presented that can linearize the response of MEMS capacitive elements such as tunable capacitors, capacitive sensors and out-of-plane electrostatic actuators. The method combinations the electrode flexibility and nonlinear [...]

A Parallel-plate-based Fishbone-Shape MEMS Tunable Capacitor with Linear Capacitance-Voltage Response

Shavezipur M., Nieva P., Khajepour A., Hashemi S.M., University of Waterloo, CA

Conventional designs for MEMS parallel-plate tunable capacitor suggest rectangular electrodes and linear structural stiffness which offer high Q-factor and quick responses; however, they have low tunability of 50% and nonlinear capacitance-voltage responses. This paper presents [...]

Measurement of Thermal Properties of Suspensions of Nanoparticles in Engine Oil

Khan Mohammadi S., Etemad S.Gh., Thibault J., Isfahan University of Technology, CA

Nanofluids refer to new kinds of engineering materials which are prepared by dispersing fine nanometer sized particles (smaller than 100 nm) in a base fluid. It has been recognized in the past decade that nanofluids [...]

Novel Metal Nanowire/Polymer Nanocomposites for Electromagnetic Interference Shielding

Gelves G.A., Al-Saleh M.H., Sundararaj U., University of Alberta, CA

Novel Polymer Nanocomposites containing high aspect ratio metal nanowires with outstanding potential for Electromagnetic Interference applications will be introduced in this presentation. The development and characterization of these novel materials will be presented. Processing-structure-property relationships [...]

Nanoparticle synthesis using polyelectrolyte nanoreactors

Anderson D.J., Dinglasan J., Goh J.B., Goh M.C., Veletanlic E., Goh J.B., Goh M.C., Vive Nano, CA

We report a facile method to synthesize a wide range of nanoparticles via polyelectrolyte nanoreactors. The nanoreactors are formed through ion-induced collapse of highly extended, high molecular weight anionic polyelectrolytes using metal salts. The formation [...]