Chen J.H. – TechConnect Briefs

Channel-to-rib width ratio effects of flowfield plates in the performance of a micro-PEM fuel cell stack

Her B.-S., Hsieh S.-S., Chen J.H., National Sun Yat-Sen University, TW

Effect of channel-to-rib width ratio of flowfield plates on micro proton exchange membrane fuel cell stacks performance test (VI/PI) was studied experimentally in the present study (see Fig. 1). The channel-to-rib width ratio was varied [...]

Two-Phase Convective Heat Transfer in Microchannels

Lin C.Y., Hsieh S.-S., Chen J.H., National Sun Yat-Sen University, TW

Experiments were conducted to investigate subcooling flow boiling in 75 parallel microchannels (L=30 mm) having 200 μm (W) x 100 μm (H) cross-section with/without structured reentrant angle ( 0°、60°、90°and 120°). Boiling inceptions, flow morphologies, critical [...]

Channel-to-rib width ratio effects of flowfield plates in the performance of a micro-PEM fuel cell stack

Her B.-S., Hsieh S.-S., Chen J.H., National Sun Yat-Sen University, TW

Effect of channel-to-rib width ratio of flowfield plates on micro proton exchange membrane fuel cell stacks performance test (VI/PI) was studied experimentally in the present study (see Fig. 1). The channel-to-rib width ratio was varied [...]

The Study of the Nanocontact Imprint with Aminosilane

Shen F.Y., Chen J.H., Chen N.H., Lam K.Y., Chen J.H., Chen N.H., Huang F.S., National Tsing Hua University, TW

The purpose of this paper is to develop nano-contact imprint technology with simple process by using soft HSQ (hydrogen silsesquioxane) mold transfer aminosilane ink on HSQ and glass substrates with binding Glutraic dialdehyde (GA) and [...]

Au Nano-Wire Transferring onto HSQ by Nano Imprinting Technology

Liu J.F., Hsu Y.J., Chen J.H., Chen S.Z., Huang F.S., Chen J.H., Chen S.Z., National Tsing Hua University, TW

In this paper, we present the technique of transferring Au nano-wire on HSQ by using nano imprint. The Au nano-wires were fabricated by electroless-plating and investigated by TEM analysis. The stable nano imprinting and suitable [...]

Tilt-angle Stabilization of Electrostatically Actuated Micromechanical Mirrors

Chen J.H., Weingar W., Azarov A., Giles R.C., Agere Systems, US

Recently proposed optical subsystems utilizing micro-electromechanical components are being developed for use in photonic crossconnects, optical add/drop multiplexers, and spectral equalizers. Common elements to these subsystems are electrostatically actuated micromechanical tilt mirrors that steer optical [...]

Tilt-angle Stabilization of Electrostatically Actuated Micromechanical Mirrors

Chen J.H., Weingar W., Azarov A., Giles R.C., Agere Systems, US

Recently proposed optical subsystems utilizing micro-electromechanical components are being developed for use in photonic crossconnects, optical add/drop multiplexers, and spectral equalizers. Common elements to these subsystems are electrostatically actuated micromechanical tilt mirrors that steer optical [...]