Volume 4 Issue 2 - April 25, 2008
 
Articles Digest

Research Express@NCKU        Apr 25~ May 1, 2008

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Comparative Study of Hydrogen Sensing Characteristics of a Pd/GaN Schottky Diode in Air and N2 Atmospheres
Jun-Rui Huang

1. Introduction
Due to the progressive and severe requirements in industrial safety and environmental protection, hydrogen sensors have become increasingly important in many applications, e. g., industrial fabrication processes, medical installations, laboratories, and fueled motor vehicles. ...

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Effects of Cu stoichiometry on the micro structures, barrier-layer structures, electrical conduction, dielectric responses, and stability of CaCu3Ti4O12
TT Fang

Recently the unusual cubic perovskite-related CaCu3Ti4O12 (CCTO) has attracted considerable attention and been much studied because it possesses an extraordinarily high dielectric constant at room temperature of about 104–105 and good temperature stability over a wide temperature range from 100 to 600 K. ...

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A simple finite element model for vibration analyses induced by moving vehicles
Shen-Haw Ju

There are difficulties for finite element vehicle models. First, the mass velocity and acceleration at the moving mass node require the derivation of shape functions, which produces an unsymmetrical stiffness matrix if the element contains damper or mass. ...

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A study of deterministic fuzzy time series model
Sheng-Tun Li

The forecasting problem of time series data, consisting of time-dependent sequences of continuous values, is important and interesting in a great variety of applications such as monitoring air pollution in environmental protection, predicting stock prices in the stock market, estimating blood pressure at the hospital, and so on. ...

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Evaluation of the effectiveness of personal protective equipment against occupational exposure to N,N-dimethylformamide
H-Y Chang

Exposure via the dermal route has recently raised increasing concerns for a number of chemical hazards frequently used in occupational settings. N,N-dimethylformamide (DMF), due to its great solvent power for both polar and non-polar solutes, is considered a potent skin penetrant. ...

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Cordyceps sinensis Mycelium Induces MA-10 Mouse Leydig Tumor Cell Apoptosis by Activating the Caspase-8 Pathway and Suppressing the NF-κB Pathway
Bu-Miin Huang

Cordyceps sinensis (CS), an Ascomycetes fungus parasitic to Lepidoptera larvae, has long been used as nutritious food or medicines treating many illnesses in Chinese society. ...

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Manipulation of Tunneling Frequencies Using Magnetic Fields for Resonant Tunneling Effects of Surface Plasmons
Yung-Chiang Lan

Surface plasmon (SP) is the coherent fluctuations of electron charges at the metal (or doped semiconductor)-dielectric interface. ...

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