Volume 6 Issue 9 - December 5, 2008
Articles Digest

Research Express@NCKU Dec. 5 ~ Dec. 11, 2008

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Thickness-Dependent Structural Evolutions and Growth Models in Relation to Carrier Transport Properties in Polycrystalline Pentacene Thin Films
Horng-Long Cheng

Organic molecular semiconductors, used as active elements, in optoelectronic devices are increasing rapidly today. Different organic molecular semiconductors have now demonstrated performance, which makes them suitable for application in thin-film based device technologies. One of the examples is thin-film transistors (TFTs), where organic semiconductors are deposited upon gate dielectrics, e.g. ...

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Effect of soil texture and excitation frequency on the propagation and attenuation of acoustic waves at saturated conditions
Wei-Cheng Lo

1.RESEARCH OBJECTIVES
In recent decades, exploration of porous medium structures and interstitial fluid properties in subsurface environments with seismic waves has become a powerful, non-destructive technique extensively used in the field of hydrogeology.  One of the critical goals of subsurface exploration is the use of seismic data to infer hydrological parameters of soils, such as porosity ...


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Support vector networks pruning on flood forecasting and data mining
Pao-Shan Yu

Flood forecasting is an important countermeasure for flood disaster mitigation. This study established a flood forecasting model using the support vector machines (SVMs), and then applied two pruning strategies to simplify the network structure of SVMs to investigate the forecasting ability of pruned flood forecasting models. ...

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Experimental Comparisons of Face-to-Face and Anonymous Real-Time Team Competition in a Networked Gaming Learning Environment
Fu-Yun Yu

The use of computer and online games for serious educational purposes has increasingly drawn attention from educators and researchers worldwide (Aldrich, 2005; Jenkins, 2002). While the characteristics, usage patterns, and motivations of users of these environments have produced valuable insights for both researchers and game designers (Dondlinger, 2007; Jansz & Tanis, 2007; Yee, 2006), empirical ...

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Dynamic Negative Bias Temperature Instability (NBTI) on Low-Temperature Polycrystalline Silicon (LTPS) Thin Film Transistors
Y.K. Fang

The low-temperature poly-Si thin film transistors prepared on glass substrates (LTPS TFTs) have been studied extensively for active matrix liquid crystal display applications. Comparing to the amorphous silicon TFTs (a-Si TFTs), the LTPS TFTs have several orders of magnitude higher electron mobility. In addition, it is possible to integrate the LTPS TFTs with peripheral circuits on same glass ...

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