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Mini-invasive vs open resection of colorectal cancer and liver metastases: A meta-analysis

World Journal of Gastroenterology 2019年第22期25卷 2819-2832页

作者： Shan-Ping Ye Hua Qiu shi-jun Liao jun-Hua Ai jun shi Department of General Surgery First Affiliated Hospital of Nanchang University

BACKGROUND The safety and feasibility of the simultaneous resection of primary colorectal cancer (CRC) and synchronous colorectal liver metastases (SCRLM) have been demonstrated in some studies. Combined resection is expected to be the optimal strategy for patients with CRC and SCRLM. However, traditional laparotomy is traumatic, and the treatment outcome of minimally invasive surgery (MIS) is still obscure. AIM To compare the treatment outcomes of MIS and open surgery (OS) for the simultaneous resection of CRC and SCRLM. METHODS A systematic search through December 22, 2018 was conducted in electronic databases (PubMed, EMBASE, Web of Science, and Cochrane Library). All studies comparing the clinical outcomes of MIS and OS for patients with CRC and SCRLM were included by eligibility criteria. The meta-analysis was performed using Review Manager Software. The quality of the pooled study was assessed using the Newcastle-Ottawa scale. The publication bias was evaluated by a funnel plot and the Begg’s and Egger’s tests. Fixed- and random-effects models were applied according to heterogeneity. RESULTS Ten retrospective cohort studies involving 502 patients (216 patients in the MIS group and 286 patients in the OS group) were included in this study. MIS was associated with less intraoperative blood loss [weighted mean difference (WMD)=-130.09, 95% confidence interval (CI):-210.95 to -49.23, P = 0.002] and blood transfusion [odds ratio (OR)= 0.53, 95%CI: 0.29 to 0.95, P = 0.03], faster recovery of intestinal function (WMD =-0.88 d, 95%CI:-1.58 to -0.19, P = 0.01) and diet (WMD =-1.54 d, 95%CI:-2.30 to -0.78, P < 0.0001), shorter length of postoperative hospital stay (WMD =-4.06 d, 95%CI:-5.95 to -2.18, P < 0.0001), and lower rates of surgical complications (OR = 0.60, 95%CI: 0.37 to 0.99, P = 0.04). However, the operation time, rates and severity of overall complications, and rates of general complications showed no significant differences between the MIS and OS groups. M

关键词： Minimally invasive surgical procedures Laparotomy Colorectal neoplasms Synchronous liver metastases Meta-analysis

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Scalable connection-based flow control scheme for application-specific network-on-chip

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The Journal of China Universities of Posts and Telecommunications 2011年第6期18卷 98-105页

作者： LIN shi-jun shi Jiang-hong CHEN Hui-huang School of Information Science and Technology Xiamen University Xiamen 361005 China

In this paper, a scalable connection-based flow control scheme is proposed for application-specific network-on-chip （NoC）. The proposed scheme exploits two distinctive characteristics of NoC, namely traffic predictability and abundant wire resource, to achieve significant performance enhancements. First, the burst injection data are regulated into constant data streams and a connection-based method is used to ensure that all links are not overloaded at any time. Consequently, the number of packets in the network is decreased, leading to a reduced congestion probability and improved communication performance. Second, a simple architecture of the central controller is proposed to guarantee that the proposed scheme has small area overhead and is scalable. Simulation results show that compared with traditional switch-to-switch （STS） flow control scheme and pre-allocation based flow control schemes, the proposed scheme greatly increases the throughput and cuts down the average latency with reasonable area and energy overhead.

关键词： network-on-chip (NoC) system-on-chip (SoC) flow control

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Flexible Gradient Poly(ether-ester)from the Copolymerization of Epoxides and c-Caprolactone Mediated by a Hetero-bimetallic Complex

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Chinese Journal of Polymer Science 2021年第8期39卷 1013-1019,I0007页

作者： Wei-Min Ren Hong-juan Gao Tian-jun Yue State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian 116024China

Copolymerization is a commonly employed method for optimizing the properties of polymer *** ether segments into polyesters main chain to obtain polyether-polyester copolymers is an effective strategy to realize the integration of multiple properties of polyester and polyether,and to develop more high-performance,multi-purpose polymer ***,the synthesis of poly(ether-ester)s is accessible by employing the biphenyl-linked heterodinuclear salen Cr-AI complex in the presence of PPNCI for the copolymerization of epoxides and£-caprolactone(CL).Monitoring the copolymerization process reveals that catalyst 1 exhibited good performance for the copolymerization of epoxides and CL,affording copolymers with a gradient sequence *** dynamic thermomechanical analysis(DMA)study indicates the obtained poly(ether-ester)s possess enhanced flexibility compared with the block copolymers or blend of PPO and PCL homopolymers with the same *** study provides a theoretical basis for the preparation of high-performance polymer materials.

关键词： Lactone Epoxide Copolymerization Poly(ether-ester)copolymer Dynamic mechanical analysis

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SIMULATION OF SEDIMENT-LADEN FLOW BY DEPTH-AVERAGED MODEL BASED ON UNSTRUCTURED COLLOCATED GRID

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Journal of Hydrodynamics 2007年第4期19卷 525-532页

作者： LIU shi-he LUO Qiu-shi MEI jun-ya School of Water Resource and Hydropower Wuhan University Wuhan 430072 China

The 2-D depth-averaged mathematical model for sediment-laden flows has been widely used in river control and other related engineering problems, and now it is usually solved on structured grids. Since the natural river is usually very complicated in plane boundary, and unstructured grids are more attractive in solving the problems with complicated domains, the following questions about solving 2-D depth-averaged model were discussed in this article：（1） a modified Bowyer algorithm was suggested to generate unstructured grids for natural rivers, （2） the Finite Volume Method （FVM） is employed to discretize the governing equations of the 2-D depth-averaged model and an implicit scheme was suggested with unstructured collocated grids, （3） the observed hydrological data of the Chenglingji Reach in the Yangtze River are used for verification of the presented method It seems that the suggested numerical scheme works very well, and the simulation results of both hydraulic characteristics and river bed deformation are in good agreement with the observed ones.

关键词： Bowyer algorithm unstructured grid SIMPLE algorithm

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Catalytic transfer hydrogenation of biomass-derived furfural to furfuryl alcohol with formic acid as hydrogen donor over CuCs-MCM catalyst

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Chinese Chemical Letters 2021年第3期32卷 1186-1190页

作者： Tao Wang juan Du Yong Sun Xing Tang Zuo-jun Wei Xianhai Zeng shi-Jie Liu Lu Lin Xiamen Key Laboratory of Clean and High-valued Utilization for Biomass College of EnergyXiamen UniversityXiamen 361102China Fujian Engineering and Research Center of Clean and High-valued Technologies for Biomass Xiamen 361102China School of Chemical and Biological Engineering Zhejiang UniversityHangzhou 310058China Department of Paper and Bioprocess Engineering State University of New York College of Environmental Science and ForestrySyracuseNew York 13210United States State Key Laboratory of Applied Microbiology Southern China Guangdong Provincial Key Laboratory of Microbial Culture Collection and ApplicationGuangdong Open Laboratory of Applied MicrobiologyGuangdong Microbial Culture Collection Center(GDMCC)Guangdong Institute of MicrobiologyGuangdong Academy of SciencesGuangzhou 510070China

Catalytic transfer hydroge nation(CTH)of furfural(FF)to furfu ryl alcohol(FFA)has received great intere st in recent *** rein,Cu-Cs bimetallic supported catalyst,CuCs(2)-MCM,was developed for the CTH of FF to FFA using formic as hydrogen ***(2)-MCM achieved a 99.6%FFA yield at an optimized reaction conditions of 170℃,1 *** species in CuCs(2)-MCM had dual functions in catalytically decomposing formic acid to generate hydrogen and hydrogenating FF to *** doping of Cs made the size of Cu particles smaller and improved the dispersion of the Cu active *** rtantly,the Cs species played a favorable role in enhancing the hydrogenation activity as a promoter by adjusting the surface acidity of Cu species to an appropriate *** analysis showed that surface acidity is the primary factor to affect the catalytic activity of CuCs(2)-MCM.

关键词： Furfural Furfuryl alcohol CuCs(x)-MCM catalysts Catalytic transfer hydrogenation Formic acid

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Advanced treatment of wet-spun acrylic fiber manufacturing wastewater using three-dimensional electrochemical oxidation

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Journal of Environmental Sciences 2016年第12期28卷 21-31页

作者： Tianlong Zheng, Qunhui Wang Zhining shi Yue Fang Shanshan shi juan Wang Chuanfu Wu Department of Environmental Engineering University of Science and Technology Beijing Beijing 100083 China. Beijing Key Laboratory on Resource-oriented Treatment of lndustrial Pollutants University of Science and Technology Beijing Beijing 100083 China School of Earth and Environmental Sciences The University of Adelaide South Australia 5005 Australia

A three-dimensional electrochemical oxidation （3D-EC） reactor with introduction of activated carbon （AC） as particle micro-electrodes was apphed for the advanced treatment of secondary wastewater effluent of a wet-spun acrylic fiber manufacturing plant. Under the optimized conditions （current density of 500 A/m2, circulation rate of 5 mL/min, AC dosage of 50 g, and chloride concentration of 1.0 g/L）, the average removal efficiencies of chemical oxygen demand （CODer）, NH3-N, total organic carbon （TOC）, and ultraviolet absorption at 254 nm （UV2s4） of the 3D-EC reactor were 64.5%, 60.8%, 46.4%, and 64.8%, respectively; while the corresponding effluent concentrations of CODcr, NH3-N, TOC, and UV2s4 were 76.6, 20.1, and 42.5 mg/L, and 0.08 Abs/cm, respectively. The effluent concentration of CODer was less than 100 mg/L, which showed that the treated wastewater satisfied the demand of the integrated wastewater discharge standard （GB 8978-1996）. The 3D-EC process remarkably improved the treatment efficiencies with synergistic effects for CODer, NH3-N, TOC, and UV2s4 during the stable stage of 44.5%, 38.8%, 27.2%, and 10.9%, respectively, as compared with the sum of the efficiencies of a two-dimensional electrochemical oxidation （2D-EC） reactor and an AC adsorption process, which was ascribed to the numerous micro-electrodes of AC in the 3D-EC reactor. Gas chromatography mass spectrometry （GC-MS） analysis revealed that electro- chemical treatment did not generate more toxic organics, and it was proved that the increase in acute biotoxicity was caused primarily by the production of free chlorine.

关键词： Advanced treatment Synergistic effect Three-dimensional electrochemicaloxidation Wet-spun acrylic fiber wastewater

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A concise synthetic approach to dihydrochalcone:First total syntheses of bipinnatone A and B

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Chinese Chemical Letters 2011年第10期22卷 1135-1138页

作者： shi jun Da Ying Li State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China

The first total syntheses of bipinnatone A and B have been achieved starting from commercially available phloroglucinol,p-hydroxybenzaldehyde in ten *** features of the syntheses include Aldol reaction,aryl-alkylation... 详细信息

关键词： Bipinnatone A Bipinnatone B Aldol reaction InCl_3-NaBH_4 reduction

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Multi-target positioning for passive sensor network via bistatic range space projection

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Science China(Information Sciences) 2016年第1期59卷 223-227页

作者： jun shi Ling FAN Xiaoling ZHANG Tongyan shi School of Electronic Engineering University of Electronic Science and Technology of China School of Physics and Electronic Engineering Leshan Normal University

Dear editor,Positioning target is a classical topic in radar and sonar *** a passive(radar)sensor system,target can be located using either the time of arrival(TOA)[1],the time difference of arrival(TDOA)[2],the angle... 详细信息

关键词： TDOA PGC Target

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Deformation and Motion of a Red Blood Cell in a Shear Flow Simulated by a Lattice Boltzmann Model

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Communications in Theoretical Physics 2009年第6期51卷 1117-1120页

作者： shi juan QIU Bing TAN Hui-Li School of Information and Communication Engineering Guilin University of Electronic Technology Guilin 541004 China College of Physics and Electronic Engineering Guangxi Normal University Guilin 541004 China

A lattice Boltzmann model is presented to simulate the deformation and motions of a red blood cell （RBC） in a shear flow. The curvatures of the membrane of a static RBC with different chemical potentiM drops calculated by our model agree with those computed by a shooting method very well. Our simulation results show that in a shear flow, biconcave RBC becomes highly flattened and undergoes tank-treading motion. With intrinsically parallel dynamics, this lattice Boltzmann method is expected to find wide applications to both single and multi-vesicles suspension as well as complex open membranes in various fluid flows for a wide range of Reynolds numbers.

关键词： red blood cells biconcave lattice Boltzmann method

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A Simple Implementation of the Semi-Lagrangian Level-Set Method

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Advances in Applied Mathematics and Mechanics 2017年第1期9卷 104-124页

作者： Weidong shi Jian-jun Xu shi Shu School of Mathematical and Computational Sciences Xiangtan UniversityXiangtanHunan 411105China Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714China

Semi-Lagrangian(S-L)methods have no CFL stability constraint,and are more stable than the Eulerian *** the literature,the S-L method for the levelset re-initialization equation was complicated,which may be *** the re-initialization procedure is auxiliary,we propose to use the first-order S-L scheme coupled with a projection technique to improve the accuracy at the grid points just adjacent to the *** second-order S-L method is used for evolving the level-set convection *** implementation is simple,including on the block-structured adaptive *** efficiency of the S-L method is demonstrated by extensive numerical examples including passive convection of interfaces with corners/kinks/large deformation under given velocity fields,a geometrical flow with topological changes,simulations of bubble/droplet dynamics in incompressible twophase *** terms of accuracy it is comparable to the other existing methods.

关键词： Semi-Lagrangian method level-set method interface motion two-phase flow bubble/droplet dynamics block-structured adaptive mesh

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