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Effect of deposition current density on the linear actuation behaviour of PPy(CF₃SO₃) films
Shu Yi Chu,Hui Peng,Paul A. Kilmartin,Graham A. Bowmaker,Ralph P. Cooney 한국물리학회 2008 Current Applied Physics Vol.8 No.3,4
Free-standing lms of PPy(CF₃SO₃) were galvanostatically electropolymerised in propylene carbonate on a stainless steel electrodeusing dierent deposition current densities. The actuation performance of these lms in an aqueous 1.0 M NaPF6 electrolyte was inves-linear strain of the lms decreased with a higher deposition current density. X-ray photoelectron spectroscopy was used to estimate theamount of ‘disordered carbon’, carbonyl carbon and the doping level of the lms. These values were related to the strain obtained fromECMD measurements. SEM images revealed a denser lm morphology for lms deposited using a lower current density.
Shu Yi Chu,Ji Bo Xiao,Guang Ming Tian,Ming Hung Wongb 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.5
Preparation of activated carbon from Thalia dealbata was carried out. The T. dealbata-derived activated carbon (TDAC) was characterized by BET, SEM and FTIR. The potential of TDAC to remove reactive brilliant blue from aqueous solutions was investigated under varying conditions of pH, adsorbent dosage, contact time, initial dye concentration, and temperature. Adsorption equilibrium, and kinetics were further studied. Adsorption was favored under acid conditions, and the process attained equilibrium in 30 min. The pseudo-second-order model could best describe the adsorption kinetics. The equilibrium data fitted well with the Langmuir and Freundlich models, and the maximum capacity was 555 mg g-1.
The Structure of Polysemy: A study of multi-sense words based on WordNet
( Jen Yi Lin ),( Chang Hua Yang ),( Shu Chuan Tseng ),( Chu Ren Huang ) 한국언어정보학회 2002 국제 워크샵 Vol.2002 No.-
The issues in polysemy with respect to the verbs in WordNet will be discussed in this paper. The hypernymy/hyponymy structure of the multiple senses is observed when we try to build a bilingual network for Chinese and English. There are several types of polysemic patterns and a co-hypernym may have the same word form as its subordinates. Fellbaum (2000) dubbed autotroponymy that the verbs linked by manner relation share the same verb form. However, her syntactic criteria seem not compatible to the hierarchies in WN. Either the criteria or the network should be reconducted. For most verbs in WN 1.7, polysemous relations are unlikely to extend over 3 levels of IS-A relation. Highly polysemous verbs are more complicated and may be involved in certain semantic structures. Semi-automatic sense grouping may be helpful for multimlinguital information retrieveal.
Ting-Yu Chao,Cheng-Chu Hsieh,Shih-Min Hsu,Cho-Hua Wan,Guan-Ting Lian,Yi-Han Tseng,Yueh-Hsiung Kuo,Shu-Chen Hsieh 한국식품영양과학회 2021 Preventive Nutrition and Food Science Vol.26 No.1
Hepatic ischemia/reperfusion (IR) injury is a complication that occurs during liver surgery, whereby hepatic tissue is injured by oxygen deficiency during ischemia, then further damaged by a cascade of inflammatory and oxidative insults when blood is resupplied during reperfusion. Antrodia camphorata is an indigenous fungus in Taiwan and an esteemed Chinese herbal medicine with various bioactivities. This study examined the effect of ergostatrien-3β-ol (EK100), an active compound found in both the fruiting body and mycelia of A. camphorata, on IR injury pathologies in rats and cell models of oxidative and inflammatory stress. Male Sprague-Dawley rats were randomly assigned to receive a vehicle or 5 mg/kg EK100 prior to hepatic IR injury induced by 1 h ischemia followed by 24 h reperfusion, or a sham operation. RAW 264.7 murine macrophages and HepG2 hepatocytes were pretreated with EK100, then inflammation was induced with lipopolysaccharides in the former and oxidative stress was induced with hydrogen peroxide in the latter. EK100 decreased IR-induced elevation in serum levels of alanine aminotransferase and aspartate aminotransferase and lowered levels of the inflammatory cytokines tumor necrosis factor-α, interleukin (IL)-6, and IL-1β. In addition, EK100 significantly reduced hepatic mRNA levels of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2, as well as nitrite production and iNOS gene expression in both hepatocyte and macrophage cell lines. We demonstrated that EK100 exhibits potent protection against hepatic IR injury, which may be used to design strategies to ameliorate liver damage during liver surgery.
Association of TNF-α-308 and -238 Polymorphisms with Risk of Cervical Cancer: A Meta-analysis
Pan, Feng,Tian, Jing,Ji, Chu-Shu,He, Yi-Fu,Han, Xing-Hua,Wang, Yong,Du, Jian-Ping,Jiang, Feng-Shou,Zhang, Ying,Pan, Yue-Yin,Hu, Bing Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.11
Published data on the associations between tumor necrosis factor-alpha (TNF-${\alpha}$) promoter -308G>A and -238G>A polymorphisms and cervical cancer risk are inconclusive. To derive a more precise estimation of the relationship, a meta-analysis was performed. Data were collected from MEDLINE and PubMed databases. Crude odds ratios (ORs) with 95% confidence intervals (CIs) were calculated in a fixed/random effect model. 13 separate studies including 3294 cases and 3468 controls were involved in the meta-analysis. We found no association between TNF-${\alpha}$-308G>A polymorphism and cervical cancer in overall population. In subgroup analysis, significantly elevated risks were found in Caucasian population (A vs. G: OR = 1.43, 95% CI = 1.00-2.03; AA vs. GG: OR = 2.09, 95% CI = 1.34-3.25; Recessive model: OR = 2.09, 95% CI = 1.35-3.25) and African population (GA vs. GG: OR = 1.53, 95% CI = 1.02-2.30). An association of TNF-${\alpha}$-238G>A polymorphism with cervical cancer was found (A vs. G: OR = 0.61, 95% CI = 0.47-0.78; GA vs. GG: OR = 0.59, 95% CI = 0.45-0.77; Dominant model: OR = 0.59, 95% CI = 0.46-0.77). When stratified by ethnicity, similar association was observed in Caucasian population (A vs. G: OR = 0.62, 95% CI = 0.46-0.84; GA vs. GG: OR = 0.59, 95% CI = 0.43-0.82; Dominant model: OR = 0.60, 95% CI = 0.44-0.83). In summary, this meta-analysis suggests that TNF-${\alpha}$-238A allele significantly decreased the cervical cancer risk, and the TNF-${\alpha}$-308G>A polymorphism is associated with the susceptibility to cervical cancer in Caucasian and African population.