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Yunlin, Taiwan

Chao J.,National Yang Ming University | Liao J.-W.,National Chung Hsing University | Peng W.-H.,China Medical University at Taichung | Lee M.-S.,China Medical University at Taichung | And 2 more authors.
International Journal of Molecular Sciences | Year: 2013

The aim of this study was to evaluate pharmacological properties of ethanol extracted from Mahonia oiwakensis Hayata stems (MOSEtOH). The pharmacological properties included antioxidant, analgesic, anti-inflammatory and hepatoprotective effects. The protoberberine alkaloid content of the MOSEtOH was analyzed by high-performance liquid chromatography (HPLC). The results revealed that three alkaloids, berberine, palmatine and jatrorrhizine, could be identified. Moreover, the MOSEtOH exhibited antioxidative activity using the DPPH assay (IC50, 0.743 mg/mL). The DPPH radical scavenging activity of MOSEtOH was five times higher that that of vitamin C. MOSEtOH was also found to inhibit pain induced by acetic acid, formalin, and carrageenan inflammation. Treatment with MOSEtOH (100 and 500 mg/kg) or silymarin (200 mg/kg) decreased the serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels compared with the CCl4-treated group. Histological evaluation showed that MOSEtOH reduced the degree of liver injury, including vacuolization, inflammation and necrosis of hepatocytes. The anti-inflammatory and hepatoprotective effect of MOSEtOH were found to be related to the modulation of antioxidant enzyme activity in the liver and decreases in malondialdehyde (MDA) level and nitric oxide (NO) contents. Our findings suggest that MOSEtOH has analgesic, anti-inflammatory and hepatoprotective effects. These effects support the use of MOSEtOH for relieving pain and inflammation in folk medicine. © 2013 by the authors; licensee MDPI, Basel, Switzerland. Source

Chien H.-L.,Wufeng University | Chi J.-H.,Wufeng University | Wu S.-H.,Trans World University
Lecture Notes in Engineering and Computer Science | Year: 2013

This paper examines as a study case a hotel fire accident that resulted in the some of the most serious casualties in Taiwan's history. Examination of the official fire investigation report allows us to determine the fire origination point. Experimental data by NIST for a queen-size foam mattress is used as the input parameter to simulate the initial fuel for the fire. The latest Fire Dynamics Simulator (FDS) program from NIST is used, referring to NFPA921 regulations. The personnel evacuation time and time variants for various fire hazard factors, such as temperature, smoke layer height, and carbon monoxide density, are taken into account. These are used to provide a reconstructive analysis in order to determine the reason for such a high number of casualties. Source

Hsu Y.-W.,Chung Shan Medical University | Tsai C.-F.,Trans World University | Chen W.-K.,Chung Shan Medical University | Chen W.-K.,National Tainan Institute of Nursing | And 2 more authors.
Food Chemistry | Year: 2011

Lutein and zeaxanthin were extracted from daylily (Hemerocallis disticha) flowers using supercritical fluid extraction-carbon dioxide (SFE-CO2) at a temperature range of 50-95 °C and pressure range of 300-600 bar. The extracts were analysed by HPLC with a C30 column and an isocratic solvent system: methanol/methyl-tert-butyl ether = 86/14 (v/v). Moreover, the antioxidant capacities of the extracts were evaluated by a 2,2-diphenyl-2- picrylhydrazyl radical scavenging assay and a chemiluminescence assay to measure the scavenging activity of hydrogen peroxide, superoxide anion and hydroxyl radical. The optimal lutein and zeaxanthin extraction could be achieved at 80 °C and 600 bar, and the extraction pressure was the most important parameter for SFE-CO2. In addition, the extracts had significantly higher antioxidant activities in all antioxidant assays. © 2011 Elsevier Ltd. All rights reserved. Source

Tsai L.-F.,Trans World University
Journal of Convergence Information Technology | Year: 2011

The purpose of this study was to investigate the difference of job characteristics and organizational commitment of Taiwan Technician expatriates working in mainland China according to gender. The methods of data analysis used in this study consisted of exploratory factor analysis (EFA), internal consistency reliability, and One-way ANOVA and t-test were used to assess the different variables according to gender of Taiwan Technician expatriates working in mainland China. Findings indicated that the variables of job characteristics, and organizational commitment were significantly different according to gender. Further study need to replicate the research in different countries in order to explore the relationships among job characteristics, and organizational commitment of technician expatriates was recommended. Source

Chen J.-S.,National Yunlin University of Science and Technology | Liao Y.-H.,Trans World University | Huang M.-S.,National Yunlin University of Science and Technology | Chou J.-C.,National Yunlin University of Science and Technology | And 2 more authors.
Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015 | Year: 2015

In this study, we used polyethylene terephthalate (PET) as substrate and we combined with screen-printed technology to achieve miniaturization of sensor. In order to avoid damaging for single sensing window, the sensor device had six sensing windows on polyethylene terephthalate (PET) substrate in this study. The six sensing windows could provide six measurement values, which could provide accurate measurement results. The sensing properties of indium gallium zinc oxide (IGZO) sensing membranes were changed by different sputtering parameters. Therefore, we changed Ar/O2 flow ratios of IGZO sensing membranes by the radio frequency sputtering system, which investigated about the sensing properties of differential reference electrode arrayed flexible IGZO pH sensor for different Ar/O2 flow ratios. Furthermore, we also researched on hysteresis effect and drift effect. The hysteresis experiments were carried out by two cycles of pH values, which were pH 7-11-7-3-7 and pH 7-3-7-11-7, respectively. The drift experiments were carried out by immersing IGZO sensor in pH3, pH7, pH11 buffer solutions for 12 hours, respectively. According to the experimental results, we found that Ar/O2 flow ratio of IGZO pH sensing membranes was set at 16/2 (in seem) by radio frequency sputtering system, which can have better performance. The sensitivity and linearity of the IGZO pH sensor were 54.737 mV/pH and 0.994 in Ar/O2 flow ambience of 16/2 (in sccm), respectively. The hysteresis values were 8.56 mV and 25.01 mV in cycles of pH 7-11-7-3-7 and pH 7-3-7-11-7 in Ar/O2 flow ambience of 16/2, respectively. The drift values were 1.06 mV/hr, 3.64 mV/hr, 6.04 mV/hr in pH3, pH7, pH11 buffer solutions from 5 to 12 hours in Ar/O2 flow ambience of 16/2, respectively. The experimental results demonstrated that IGZO sensing membrane was successfully applied to detect hydrogen ions. © 2015 IEEE. Source

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