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      • Three Treatment Methods via the Hepatic Artery for Hepatocellular Carcinoma - A Retrospective Study

        Ma, Teng-Chuang,Shao, Hai-Bo,Xu, Yang,Xu, Ke Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.4

        Background: To evaluate the relative effectiveness of different treatments of hepatocellular carcinoma (HCC) via the hepatic artery. Materials and Methods: The study sample group consisted of 418 patients who were randomly selected from 2008 to 2012 with a first diagnosis of HCC and treated with transcatheter arterial chemoembolization (TACE) or without (TAE) chemotherapy or transcatheter arterial infusion (TAI). We collected data including tumor size preoperative and one month thereafter to compare change in areas across the three groups, along with various laboratory indexes for comparison. Results: The overall average change of areas was $240.8{\pm}72.1mm^2$. In the three groups it was $265.0{\pm}58.0mm^2$ vs. $250.5{\pm}51.9mm^2$ vs. $123.7{\pm}26.2mm^2$. In groups TACE and TAE values were larger than in group TAI (p<0.01), but the difference between the two was not statistically significant (p= 0.191). Additionally, U/L change of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in groups TACE and TAE was greater than in the TAI cases ($24.0{\pm}13.5$ vs. $20.9{\pm}12.1$ vs. $5.47{\pm}8.20$ and $25.6{\pm}13.5$ vs.$23.2{\pm}12.28$ vs.$5.48{\pm}14.3$) on the preoperative day and two days thereafter (p<0.01). Between the two groups there was no significant cariation (p= 0.320 and p= 0.609). However, the AST and ALT recovered to normal levels one month later on therapy with liver protecting drugs. Conclusion: The groups TACE and TAE demonstrated more effective reduction of tumor size than group TAI. While lipiodol caused acute liver function damage, this proved reversible.

      • KCI등재

        Damage and stiffness research on steel shape steel fiber reinforced concrete composite beams

        Chao Xu,Kai Wu,Ping zhou Cao,Shi qi Lin,Teng fei Xu 사단법인 한국계산역학회 2019 Computers and Concrete, An International Journal Vol.24 No.6

        In this work, an experimental research has been performed on Steel Fiber-Steel Reinforced Concrete (SFSRC)specimens subjected to four-point bending tests to evaluate the feasibility of mutual replacement of steel fibers and conventional reinforcement through studying failure modes, load-deflection curves, stiffness of characteristic points, stiffness degradation curves and damage analysis. The variables considered in this experiment included steel fiber volume percentage with and without conventional reinforcements (stirrups or steel fibers) with shear span depth ratios of S/D=2.5 and 3.5. Experimental results revealed that increasing the volume percentage of steel fiber decreased the creation and propagation of shear and bond cracks, just like shortening the stirrups spacing. Higher crack resistance and suturing ability of steel fiber can improve the stability of its bearing capacity. Both steel fibers and stirrups improved the stiffness and damage resistance of specimens where stirrups played an essential role and therefore, the influence of steel fibers was greatly weakened. Increasing S/D ratio also weakened the effect of steel fibers. An equation was derived to calculate the bending stiffness of SFSRC specimens, which was used to determine mid span deflection; the accuracy of the proposed equation was proved by comparing predicted and experimental results.

      • KCI등재

        Disruption of the F-actin Cytoskeleton and Monolayer Barrier Integrity Induced by PAF and the Protective Effect of ITF on Intestinal Epithelium

        Ling-fen Xu,Cheng Xu,Zhi-Qin Mao,Xu Teng,Li Ma,Mei Sun 대한약학회 2011 Archives of Pharmacal Research Vol.34 No.2

        To explore whether platelet-activating factor (PAF) can disrupt the intestinal epithelial barrier directly and is associated with structural alterations of the F-actin-based cytoskeleton, and to observe the protective effect of intestinal trefoil factor (ITF), we establish an intestinal epithelia barrier model using Caco-2 cells in vitro. Transepithelial electrical resistance and unidirectional flux of lucifer yellow were measured to evaluate barrier permeability; immunofluorescent staining and flow cytometry were applied to observe morphological alterations and to quantify proteins of the F-actin cytoskeleton: the tight junction marker ZO-1 and Claudin-1 were observed using immunofluorescent staining. PAF significantly increased paracellular permeability, at the same time, F-actin and tight junction proteins were disrupted. It was thought that ITF could reverse the high permeability by restoring normal F-actin, ZO-1 and Claudin-1 structures. These results collectively demonstrated that PAF plays an important role in the regulation of mucosal permeability and the effects of PAF are correlated with structural alterations of the F-actin-based cytoskeleton and of tight junctions. ITF can protect intestinal epithelium against PAF-induced disruption by restricting the rearrangement of the F-actin cytoskeleton and of tight junctions.

      • KCI등재

        Finite-element-method based Adaptive Iterative Learning Control for a Rapid Thermal Processing System

        Teng-Fei Xiao,Xiao-Dong Li,Qing-Yuan Xu 대한전자공학회 2020 Journal of semiconductor technology and science Vol.20 No.1

        For the temperature regulation in a rapid thermal processing system in semiconductor manufacturing, we develop an adaptive iterative learning controller based on the finite-element-method in this paper. A finite-dimensional model of the system is constructed by the finite-element-method firstly. Then, adaptive iterative learning controller is designed based on the finite-dimensional model. Simulations are performed by heating the wafer in the system with the developed control method. Simulation results show the effectiveness of the proposed adaptive iterative learning controller.

      • SCIESCOPUS

        Wind characteristics at Sutong Bridge site using 8-year field measurement data

        Xu, Zidong,Wang, Hao,Wu, Teng,Tao, Tianyou,Mao, Jianxiao Techno-Press 2017 Wind and Structures, An International Journal (WAS Vol.25 No.2

        Full-scale wind characteristics based on the field measurements is an essential element in structural wind engineering. Statistical analysis of the wind characteristics at Sutong Cable-stayed Bridge (SCB) site is conducted in this study with the recorded long-term wind data from structural health monitoring system (SHMS) between 2008 and 2015. Both the mean and turbulent wind characteristics and power spectra are comprehensively investigated and compared with those in the current codes of practice, such as the measured wind rose diagram, monthly maximum mean wind speed, turbulence intensity, integral length scale. Measurement results based on the monitoring data show that winds surrounding the SCB site are substantially influenced by the southeast monsoon in summer and strong northern wind in winter. The measured turbulence intensity is slightly higher than the recommended values in specifications, while the measured ratio of lateral to longitudinal turbulence intensity is slightly lower. An approximately linear relationship between the measured turbulence intensities and gust factors is obtained. The mean value of the turbulence integral length scale is smaller than that of typical typhoon events. In addition, it is found that the Kaimal spectrum is suitable to be adopted as the power spectrum for longitudinal wind component at the SCB site. This contribution would provide important wind characteristic references for the wind performance evaluation of SCB and other civil infrastructures in adjacent regions.

      • KCI등재

        Study on the doping mechanism and electronic structure for Nb5+ doping PbWO4 crystals

        Teng Chen,Kaiyu Xu,Dongli Shi,Mingjie Wang,Tingyu Liu 한국물리학회 2010 Current Applied Physics Vol.10 No.1

        The existing forms of the impurity Nb5+ in the Nb5+:PbWO4 (PWO) crystals are simulated by computer technology. The possible various kinds of defects in the Nb5+:PWO crystals are also simulated. By analyzing the calculation results of defect formation energies and binding energies, the optimal substitution positions of the Nb5+ ions and the charge compensating mechanism [Nb-w+V2+ o +Nb-w] in the Nb5+:PWO crystals were obtained. The electronic structures for Nb5+:PWO were calculated with density functional theory code CASTEP. It shows that the doping of Nb5+ ions could suppress the 350 nm absorption band.

      • KCI등재후보

        Comparison of Grain Quality Traits between Japonica Rice Cultivars from Korea and Yunnan Province of China

        Teng-Qiong Yu,Wenzhu Jiang,Tae-Ho Ham,추상호,Puji Lestari,이정희,Myeong-Ki Kim,Fu-Rong Xu,Longzhi Han,Lu-Yuan Dai,Hee-Jong Koh 한국작물학회 2008 Journal of crop science and biotechnology Vol.11 No.2

        Improving eating quality is one of the most important objectives in japonica rice breeding programs in Yunnan Province of China. Eating quality and its relevant traits of nine Korean and 11 Yunnan rice cultivars were comparatively analyzed in this study. The grain shape of most Yunnan japonica rice cultivars have a relatively slender shape and are slightly larger than Korean rice cultivars. Palatability value of cooked rice of Yunnan rice cultivars was significantly lower, while the protein content of Yunnan rice cultivars was significantly higher than that of Korean cultivars. Peak viscosity and breakdown viscosity of the Yunnan rice cultivars were significantly lower, while setback viscosity of the Yunnan rice cultivars was significantly higher than in Korean rice cultivars. Palatability value of cooked rice was negatively correlated with protein content and setback viscosity but positively correlated with peak viscosity, breakdown viscosity, and cool paste viscosity. Through multiple linear regression analysis, an equation for estimating palatability value (PV) of cooked rice based on quality traits was generated as dependent only upon protein content (PC), PV=139.024-(10.865×PC) with an R² value of 0.822. The results suggest that reducing protein contents should be the major target in improving eating quality of Yunnan japonica rice cultivars through integrated approaches of both cultivar development and appropriate cultural practices. Genetic similarities among cultivars based on DNA markers which had been identified as associated with grain quality seemed not to be directly related to PV. Improving eating quality is one of the most important objectives in japonica rice breeding programs in Yunnan Province of China. Eating quality and its relevant traits of nine Korean and 11 Yunnan rice cultivars were comparatively analyzed in this study. The grain shape of most Yunnan japonica rice cultivars have a relatively slender shape and are slightly larger than Korean rice cultivars. Palatability value of cooked rice of Yunnan rice cultivars was significantly lower, while the protein content of Yunnan rice cultivars was significantly higher than that of Korean cultivars. Peak viscosity and breakdown viscosity of the Yunnan rice cultivars were significantly lower, while setback viscosity of the Yunnan rice cultivars was significantly higher than in Korean rice cultivars. Palatability value of cooked rice was negatively correlated with protein content and setback viscosity but positively correlated with peak viscosity, breakdown viscosity, and cool paste viscosity. Through multiple linear regression analysis, an equation for estimating palatability value (PV) of cooked rice based on quality traits was generated as dependent only upon protein content (PC), PV=139.024-(10.865×PC) with an R² value of 0.822. The results suggest that reducing protein contents should be the major target in improving eating quality of Yunnan japonica rice cultivars through integrated approaches of both cultivar development and appropriate cultural practices. Genetic similarities among cultivars based on DNA markers which had been identified as associated with grain quality seemed not to be directly related to PV.

      • SCIESCOPUS

        An integrated structural health monitoring system for the Xijiang high-speed railway arch bridge

        He, Xu-hui,Shi, Kang,Wu, Teng Techno-Press 2018 Smart Structures and Systems, An International Jou Vol.21 No.5

        Compared with the highway bridges, the relatively higher requirement on the safety and comfort of vehicle makes the high-speed railway (HSR) bridges need to present enhanced dynamic performance. To this end, installing a health monitor system (HMS) on selected key HSR bridges has been widely applied. Typically, the HSR takes fully enclosed operation model and its skylight time is very short, which means that it is not easy to operate the acquisition devices and download data on site. However, current HMS usually involves manual operations, which makes it inconvenient to be used for the HSR. Hence, a HMS named DASP-MTS (Data Acquisition and Signal Processing - Monitoring Test System) that integrates the internet, cloud computing (CC) and virtual instrument (VI) techniques, is developed in this study. DASP-MTS can realize data acquisition and transmission automatically. Furthermore, the acquired data can be timely shared with experts from various locations to deal with the unexpected events. The system works in a Browser/Server frame so that users at any places can obtain real-time data and assess the health situation without installing any software. The developed integrated HMS has been applied to the Xijiang high-speed railway arch bridge. Preliminary analysis results are presented to demonstrate the efficacy of the DASP-MTS as applied to the HSR bridges. This study will provide a reference to design the HMS for other similar bridges.

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