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Hand-sewn vs linearly stapled esophagogastric anastomosis for esophageal cancer:A meta-analysis

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World Journal of Gastroenterology 2015年第15期21卷 4757-4764页

作者： Xu-Feng Deng Quan-Xing Liu Dong Zhou jia-Xin Min ji-gang dai Department of Thoracic Surgery Xinqiao Hospital the Third Military Medical University

AIM: To compare the outcomes of hand-sewn(HS) and linearly stapled(LS) esophagogastric anastomosis for esophageal ***: Before beginning this study, a rigorous protocol was established according to the recommendations of the Cochrane Collaboration. Databases and references were searched for all randomizedcontrolled trials and comparative clinical studies that compared LS with HS esophagogastric anastomosis for esophageal cancer. The primary outcomes compared were anastomotic leak and stricture. Subgroup analyses were performed according to site of ***: Fifteen studies were used, comprising 3203 patients(n = 2027 LS and 1176 HS). Primary outcome analysis revealed a significant decrease in anastomotic leakage(RR = 0.51, 95%CI: 0.41-0.65; P < 0.00001) a s s o c i a t e d w i t h L S a n a s t o m o s i s. A s i g n i f i c a n t l y reduced rate of anastomotic stricture associated with LS was also found(RR = 0.56, 95%CI: 0.49-0.64; P < 0.00001). A subgroup analysis according to the site of anastomosis revealed a significantly reduced rate of anastomotic stricture(P < 0.00001). Although there was no significant difference in the decrease in thoracic anastomotic leakage, there was a significant decrease in cervical anastomotic leakage associated with LS(P < 0.00001).CONCLUSION: This meta-analysis indicates that the LS technique contributes to a reduced rate of leakage and stricture compared with the HS method.

关键词： Anastomotic leakage Anastomotic stricture Hand-sewn anastomosis Linearly stapled anastomosis Meta-analysis

Preventing and localizing esophagogastric anastomosis leakage by sleeve-wrapping of the pedicled omentum

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World Journal of Gastroenterology 2014年第43期20卷 16282-16286页

作者： Quan-Xing Liu Xu-Feng Deng Bing Hou jia-Xin Min ji-gang dai Department of Thoracic Surgery Xinqiao HospitalThird Military Medical University

AIM: To develop a technique of sleeve-wrapping the pedicled omentum around the esophagogastric anastomosis for preventing and localizing leakage.

关键词： Anastomotic leakage Esophageal cancer Esophagectomy Esophagogastrostomy Pedicled omentum

The Innate Immune Response in Lateolabrax japonicus Induced by Lipopolysaccharide from Glaciecola polaris Strain ARK149(LMG21854)

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Agricultural Sciences in China 2010年第10期9卷 1504-1511页

作者： CHEN ji-gang College of Biological and Environmental Sciences Zhejiang Wanli University Ningbo 315100 P.R.China Municipal Key Laboratory of Microorganism and Environmental Engineering Ningbo 315100 P.R. China College of Fisheries Huazhong Agricultural University Wuhan 430070 P.R. China

Glaciecola polaris strain ARK149, a Gram-negative bacterium from Arctic seas, was used to derive lipopolysaccharide （LPS）, and the effect of the LPS inducing some innate immunity parameters was investigated in Japanese sea bass, Lateolabrax japonicus. The results showed that the LPS could enhance the phagocytosis activity, lysozyme activity, and bacteriolytic activity in ***, significantly （P〈0.05） at 1, 7, 14, 21, 28, and 35 d after LPS-injection. The indexes of three parameters increased to the peak of value at 28th d post LPS-injection. Moreover, RT-PCR analysis suggested that LPS significantly up-regulated the expression of both IL-8 and hepcidin in several tissues. These data suggest that the LPS extracted from Glaciecola polaris strain ARK149 can induce innate immunity in L. japonicus.

关键词： Lateolabraxjaponicus Glaciecola polaris lipopolysaccharide innate immunity RT-PCR

Spatiotemporal variation of soil organic carbon in the cultivated soil layer of dry land in the South-Western Yunnan Plateau, China

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Journal of Mountain Science 2017年第12期14卷 2484-2497页

作者： ZHAO ji-xia dai Fu-qiang HE Shou-jia ZHANG Qing LIU gang-cai Key Laboratory of Mountain Surface Processes and Ecological Regulation Institute of Mountain Hazards and Environment Chinese Academy of Science University of Chinese Academy of Sciences College of Tourism and Land Resources Chongqing Technology and Business University Agricultural Environmental and Resources Research Institute Yunnan Academy of Agricultural Sciences

The dynamics of soil organic carbon(SOC)in cropland is one of the central issues related to both soil fertility and environmental safety. However, little information is available at county level regarding the spatiotemporal variability of SOC in the southwestern mountainous region of China. Thus, this study aimed to explore spatiotemporal changes of SOC in the cultivated soil layer of dry land in Mojiang County,Yunnan Province, China. Data were obtained from the second national soil survey(SNSS) of 1985 and soil tests for fertilizer application carried out by the Mojiang Agricultural Bureau in 2006. The ANOVA test was applied to determine any significant differences between the datasets, while semivariogram analysis was performed on geostatistics via an ordinary Kriging method in order to map spatial patterns of soil organic carbon density(SOCD). The results revealed that SOCD in the cultivated soil layer significantly decreased from 3.93 kg m^(-2) in 1985 to 2.89 kg m^(-2) in 2006, with a total soil organic carbon stock(SOCS) decrease of 41.54×10~4 t over the same period. SOCS levels fell most markedly in yellow-brown soil at a rate of51.52%, while an increase of 8.70% was found in the analysed latosol. Geostatistical analysis also showed that the recorded changes in SOCD between 1985 and2006 were spatially structured. The decreasing trend might be attributed to the combined action of intense cultivation, major crop residue removal without any protective tillage measures, unreasonable fertilization and natural climatic diversity inducing a large decrease in SOC in the studied cultivated dry land region of Mojiang County. Therefore, management measures such as protective tillage should be undertaken in order to enhance soil C sequestration.

关键词： Soil organic carbon Spatiotemporal changes Dry land Cultivated soil layer Yunnan Plateau

Power Efficient Sub-Array in Reconfigurable VLSI Meshes

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Journal of Computer Science & Technology 2005年第5期20卷 647-653页

作者： ji-gang Wu Thambipillai Srikanthan Centre for High Performance Embedded Systems School of Computer Engineering Nanyang Technological University Singapore 639798

Given an m × n mesh-connected VLSI array with some faulty elements, the reconfiguration problem is to find a maximum-sized fault-free sub-array under the row and column rerouting scheme. This problem has already been shown to be NP-complete. In this paper, new techniques are proposed, based on heuristic strategy, to minimize the number of switches required for the power efficient sub-array. Our algorithm shows that notable improvements in the reduction of the number of long interconnects could be realized in linear time and without sacrificing on the size of the sub-array. Simulations based on several random and clustered fault scenarios clearly reveal the superiority of the proposed techniques.

关键词： degradable VLSI mesh reconfiguration heuristic algorithm fault-tolerance NP-complete

Development of a dynamics model for graphite-moderated channel-type molten salt reactor

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Nuclear Science and Techniques 2019年第1期30卷 145-155页

作者： Long He Cheng-gang Yu Rui-Min ji Wei Guo Ye dai Xiang-Zhou Cai Shanghai Institute of Applied Physics Chinese Academy of Sciences CAS Innovative Academy in TMSR Energy System Chinese Academy of Sciences University of Chinese Academy of Sciences

A molten salt reactor(MSR) is one of the six advanced reactor concepts selected by the generation Ⅳ international forum because of its advantages of inherent safety, and the promising capabilities of Th-U breeding and transuranics transmutation. A dynamics model for the channel-type MSR is developed in this work based on a three-dimensional thermal–hydraulic model(3DTH) and a point reactor model. The 3DTH couples a three-dimensional heat conduction model and a one-dimensional single-phase flow model that can accurately consider the heat conduction between different assemblies. The 3DTH is validated by the RELAP5 code in terms of the temperature and mass flow distribution calculation. A point reactor model considering the drift of delayed neutron precursors is adopted in the dynamics model. To verify the dynamics model, three experiments from the molten salt reactor experiment are simulated. The agreement of the experimental data and simulation results was *** the aid of this model, the unprotected step reactivity addition and unprotected loss of flow of the 2 MWt experimental MSR are modeled, and the reactor power and temperature evolution are analyzed.

关键词： Molten salt reactor Thermal-hydraulics Point reactor model Thermal coupling

CELL AND MOLECULAR BIOMECHANICS: PERSPECTIVES AND CHALLENGES

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Acta Mechanica Solida Sinica 2011年第1期24卷 27-51页

作者： Baohua ji gang Bao Department of Applied Mechanics Beijing Institute of Technology Beijing 100081 China Department of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30332 USA

As an intriguing interdisciplinary research field, cell and molecular biomechanics is at the cutting edge of mechanics in general and biomechanics in particular. It has the potential to provide a quantitative understanding of how forces and deformation at tissue, cellular and molecular levels affect human health and disease. In this article, we review the recent advances in cell and molecular biomechanics, examine the available computational and experimental tools, and discuss important issues including protein deformation in mechanotransduction, cell deformation and constitutive behavior, cell adhesion and migration, and the associated models and theories. The opportunities and challenges in cell and molecular biomechanics are also discussed. We hope to provide readers a clear picture of the current status of this field, and to stimulate a broader interest in the applied mechanics community.

关键词： molecular biomechanics cell mechanics protein mechanics cell adhesion cell migration mechanotransduction

Electro-optical properties cholesteric liquid of polymer stabilized crystal film＊

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Chinese Physics B 2011年第2期20卷 295-301页

作者： Ma ji Zheng Zhi-gang Liu Yong-gang Xuan Li State Key Laboratory of Applied Optics Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 China Department of Physics School of Science East China University of Science and Technology Shanghai 200237 China

Liquid crystals （LCs） and polymers are extensively used in various electro-optical applications. In this paper, normal mode polymer stabilized cholesteric LC film is prepared and studied. The effects of chiral dopant and monomer concentrations on the electro-optical properties, such as contrast ratio, driving voltage, hysteresis width and response time, are investigated. The reasons of electro-optical properties influenced by the concentrations of the materials are discussed. Through the proper material recipe, the electro-optical properties of polymer stabilized cholesteric LC film can be optimized.

关键词： liquid crystal polymer electro-optical property cholesteric liquid crystal