Wei-Chih Lin

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In recent years, a lot of research has focus on the physiological effect of music. The electroencephalographic (EEG) is often used to verify the influence of music on human brain activity. In this study, we used frequency distribution analysis and the independent component analysis (ICA) to analyze to discover the EEG responses of subjects with different(More)
This paper describes a low-noise and low-power architecture of the differential difference amplifier (DDA) for neural recording system. The proposed neural amplifier combines DC offset rejection and low-frequency cutoff tuning without off-chip components. DC offset rejection is carried out by ac coupling which is realized by series connection of a capacitor(More)
The RFID technology is gaining strong support from business for various applications such as supply chain management, access control, airline luggage management, etc. Due to the cost consideration, it is still not a replacement for the traditional item-level bar code. Therefore, tracking and analyzing the shopping paths and purchasing behaviors of customers(More)
Interactive multimedia display has attracted great attention in recent years. However, most of the existing systems lack the user-aware capability, i.e. blind to the viewer's height and spatial location in a real-world 3D space, and often fail to provide a natural interaction. Therefore, in this work, we propose a probabilistic framework for detecting the(More)
Species distribution models (SDMs) are extensively used to project habitat suitability of species in stream ecological studies. Owing to complex sources of uncertainty, such models may yield projections with varying degrees of uncertainty. To better understand projected spatial distributions and the variability between habitat suitability projections, this(More)
Bioassay-guided chromatographic separation of the cytotoxic MeOH extract of Phaius mishmensis led to the isolation of two known and six new indoloquinazolinones, phaitanthrins A-E (1-5) and methylisatoid (6). The structures of the new compounds were elucidated by spectroscopic analysis. Phaitanthrin A (1) and tryptanthrin (7) showed moderate cytotoxicity(More)
A pilot-scale chemical-biological process was performed efficiently to remove corrosive H2S from biogas. Consecutive 356-d livestock biogas purification was conducted at various H2S loading rates. The average inlet H2S concentration was 3542 ppm, and a removal efficiency of 95% was achieved with gas retention time of 288 s. This system showed robust(More)
This work presents a novel synthesis process for selectively locally growing nanowires on a microreactor chip fabricating by MEMS process. Carbon nanotubes (CNT) are synthesized using a chemical vapor deposition (CVD) technique by controlling the temperature of the microheaters in the microchamber of the device. The diameter of the synthesized CNT is about(More)
Habitat quality and ecosystem supply are important factors when identifying conservation areas. Traditionally, conservation planning approaches focus solely on habitat. In this study we calculated habitat quality and five other ecosystem service values through the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) and also identified hotspots(More)