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Risks faced by donors of right lobe for living donor liver transplantation

Hepatobiliary & Pancreatic Diseases International 2009年第6期8卷 581-585页

作者： Ran, shun Wen, Tian-Fu Yan, Lu-Nan li, bo Zeng, Yong Chen, Zhe-Yu Zhang, Yu liao, zhi-Xue liang, Guan-lin li, Guo Zhang, Xian-Hua Sichuan Univ Dept Hepatobiliary Surg W China Hosp Chengdu 610041 Peoples R China

BACKGROUND: Because of the shortage of deceased donors with livers fit for transplantation, living donor liver transplantation (LDLT) is becoming an attractive alternative. Attention should be paid to the donors, especially to those of the right lobe. In this study, we evaluated the risks faced by donors of the right lobe for adult-to-adult LDLT. METHODS: The perioperative data from 105 consecutive living donors of the right lobe performed in West China Hospital from January 2002 to December 2007 were retrospectively studied. Preoperative evaluation included CT, MRCP, and intraoperative cholangiography, showing liver volume, hepatic vasculature and the biliary system. The standard liver volume (SLV) and the ratio of left lobe volume to SLV were calculated. The right lobe grafts were obtained by transecting the liver on the right side of the middle hepatic vein without inflow vascular occlusion, using an ultrasonic dissector. After operation the donors were monitored in the Intensive Care Unit for about three days. Each donor was followed up for at least 6 months. RESULTS: There was no donor mortality. Major complications occurred in 14 donors (13.3%), of whom 3 received conservative treatment, 8 required invasive paracentesis, and 3 required further surgery. All donors were recovered well and resumed their previous occupations. CONCLUSIONS: Donors of the right lobe face low risks. The preoperative evaluation, especially evaluation of the volume of the remnant liver, should be exact. During the operation, the patency of the remnant hepatic vasculature and bile duct must be preserved, and the extent of injury to the remnant liver should be limited as much as possible. The detection and treatment of postoperative complications should be diligently performed.

关键词： liver transplantation living donor right lobe risk safety

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Energy correction based on fluorescence attenuation of DAMPE

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Research in Astronomy and Astrophysics 2020年第8期20卷 163-168页

作者： li-bo wu Yun-Long Zhang zhi-Yong Zhang Yi-Feng Wei Si-Cheng Wen Hao-Ting Dai Cheng-Ming liu Xiao-lian wang Zi-Zong Xu Guang-shun Huang State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China

The major scientific goals of the DArk Matter Particle Explorer(DAMPE)are to study cosmicray electrons(including positrons)and gamma rays from 5 GeV to 10 TeV and nuclei from Z=1 to 26 up to 100 *** deposited energy measured by the Bismuth Germanate Oxide(BGO)calorimeter of DAMPE is affected by fluorescence attenuation in BGO crystals that are 600 mm *** this work,an in-orbit attenuation calibration method is reported,and energy correction of the sensitive detector unit of the BGO calorimeter is also presented.

关键词： DAMPE BGO calorimeter fluorescence attenuation dark matter

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Interfacial Improvement of Carbon Fiber/Epoxy Composites by Incorporating Superior and Versatile Multiscale Gradient Modulus Intermediate Layer with Rigid-flexible Hierarchical Structure

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Chinese Journal of Polymer Science 2021年第7期39卷 896-905页

作者： Pei-Feng Feng Guo-Jun Song Wen-Jian Zhang Hao Zheng bo-Wen li Shao-Feng Zhou Ya-Qing liu Guang-shun wu li-Chun Ma Institute of Polymer Materials School of Material Science and EngineeringQingdao UniversityQingdao 266071China Shanxi Province Key Laboratory of Functional Nanocomposites North University of ChinaTaiyuan 030000China School of Chemistry and Materials Science Ludong UniversityYantai264025China

In order to enhance the interfacial adhesion of carbon fiber(CF)and polymer matrix,a multiscale gradient modulus intermediate layer with rigid-flexible(GO-PA)hierarchical structure was designed and fabricated between CFs and matrix by a facile and businesslike *** polarity,roughness and wettability of CFs surface as well as the thickness of intermediate layer in composite have been significantly increased after rigid-flexible hierarchical structure was *** IFSS,ILSS,compression and impact toughness manifested that the hierarchical structure could bring about a fantastic improvement(76.8%,46.4%,40.7%and 37.8%)for the interfacial and mechanical properties than other previous ***,the establishment of CF surface with gradient modulus rigid-flexible hierarchical structure via regulation of nanoparticles and polymer array would open a new,viable and promising route to obtaining high-performance composites.

关键词： Carbon fibers Polymer-matrix composites Interface Hierarchical structure Gradient modulus

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Research on quality changes and influencing factors of groundwater in the Guanzhong Basin

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Journal of Groundwater Science and Engineering 2017年第3期5卷 296-302页

作者： TAO Hong ZHENG miao-miao fan li-min li Wen-li DING Jia li Hui HE Xu-bo TAO Fu-ping Shaanxi Institute of Geo-Environment Monitoring Xi'an 710054 China Key Laboratory of Mine Geological Hazards Mechanism and Control Xi'an 710054 China School of Geology Engineering and Geomatics Chang'an University Xi'an 710054 China

This paper studies the distribution features, the chemical elements beyond standards and the influencing factors of shallow groundwater quality in the Guanzhong Basin through the data monitored in the last twenty years. The final purpose is to comprehensively evaluate the divisions of groundwater quality in the Guanzhong Basin. Results show that, the groundwater quality is in good shape, and suitable for drinking. Drinking accounts for 16.02% of the total, most of which are distributed in the lubotan of Weibei. Some come from loess plateau of Qian-liquan County and some are generated by the industrial pollution of xingping City. Materials exceeding standards include chloride, sulfate, three nitrogen, fluoride, manganese, iron, hexavalent chromium and so on. The main factors influencing the quality of shallow groundwater include groundwater exploitation, natural background value of special components and precipitation, among which the groundwater exploitation poses the greatest impact. The depth of water is positively correlated with the concentration of sulfate, nitrate and total hardness.

关键词： Groundwater quality Comprehensive assessment Influencing factor Excessive substance Guanzhong Basin

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Cytological, physiological, and transcriptomic analyses of golden leaf coloration in Ginkgo biloba L

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Horticulture Research 2018年第1期5卷 797-810页

作者： Wei-xing li shun-bo Yang Zhaogeng Lu zhi-chong He Yun-ling Ye Bei-bei Zhao li wang Biao Jin College of Horticulture and Plant Protection Yangzhou UniversityYangzhou225009China College of Resource and Environment Xizang Agriculture and Animal Husbandry CollegeTibet860000China

Ginkgo biloba is grown worldwide as an ornamental plant for its golden leaf ***,the regulatory mechanism of leaf coloration in *** remains ***,we compared *** gold-colored mutant leaves and normal green leaves in cytological,physiological and transcriptomic *** found that chloroplasts of the mutant were fewer and smaller,and exhibited ruptured thylakoid membranes,indistinct stromal lamellae and irregularly arranged *** experiments also showed that the mutant had a lower chlorophyll,lower flavonoid and higher carotenoid contents(especially lutein).We further used transcriptomic sequencing to identify 116 differentially expressed genes(DEGs)and 46 transcription factors(TFs)involved in chloroplast development,chlorophyll metabolism,pigment biosynthesis and *** these,the chlorophyll biosynthesis-related PPO showed down-regulation,while chlorophyll degradation-related NYC/NOL had up-regulated expression in mutant leaves.Z-ISO,ZDS,and LCYE,which are involved in carotenoid biosynthesis were *** real-time PCR(RT-qPCR)further confirmed the altered expression levels of these genes at three *** alteration of PPO and NYC/NOL gene expression might affect chlorophyll biosynthesis and promote degradation of chlorophyll b to chlorophyll a,while the up-regulated genes Z-ISO,ZDS and LCYE enhanced carotenoid ***,changes in the ratio of carotenoids to chlorophylls were the main factors driving the golden leaf coloration in the mutant ***.

关键词： metabolism golden fir

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Hydrochemistry of Rara Lake: A Ramsar lake from the southern slope of the central Himalayas,Nepal

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Journal of Mountain Science 2021年第1期18卷 141-158页

作者： KAPHLE Binija wanGJun-bo KAI Jin-lei LYU xin-miao PAUDAYAL Khum Narayan ADHIKARI Subash Key Laboratory of Tibetan Environment Changes and Land Surface Processes(TEL) Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China CAS Center for Excellence in Tibetan Plateau Earth Sciences Beijing 100101China University of Chinese Academy of Sciences Beijing 100049China Central Department of Geology Tribhuvan UniversityKritipurKathmandu 44600Nepal

High-altitude Himalayan lakes act as natural storage for environmental evidence related to climate change and environmental factors.A great number of lakes are distributed in the southern slope area of the central Himalayas;however,research concerning the hydrochemical processes of these lakes is still ***,we present a comprehensive study on the water chemistry of the lake waters and the inlet stream waters from Rara Lake in western Nepal based upon samples collected in November *** p H,dissolved oxygen,chlorophyll-aconcentration(chl-a),water temperature,electric conductivity(EC)and total dissolved solids(TDS)were measured in situ,and the concentrations of major ions(Ca^(2+),Mg^(2+),K^(+),Na^(+),Cl^(-),SO_(4)^(2-),and NO_(3)^(-))were analyzed in the *** results revealed that the water in Rara Lake is slightly alkaline,with p H values ranging from *** cations,in decreasing order of concentration in the lake water,are Ca^(2+)>Mg^(2+)>K^(+)>Na^(+)with average concentrations of20.64 mg·L^(-1),11.78 mg·L^(-1),1.48 mg·L^(-1) and 0.72 mg·L^(-1),respectively;the order and concentrations for the anions is HCO_(3)^(-)>SO_(4)^(2-)>Cl^(-)>NO_(3)^(-),with average concentrations of 122.15 mg·L-1,2.15 mg·L-1,0.46mg·L-1 and 0.55 mg·L-1,*** dominant cation and anion in the lake water are Ca2+and HCO3-and they account for 48.14%and 71.8%of the totals,*** range of lake water TDS is from 95mg·L^(-1) to 98 mg·L^(-1),with an average of 96.85 mg·L^(-1).The high ratio of(Ca^(2+)+Mg^(2+))to total cations and the low ratio of(Na^(+)+K^(+))to total cations indicate that Rara Lake receives ions from rock weathering,especially from carbonate ***,Gibbs boomerang diagrams and Piper diagrams also support the hydrochemistry of Rara Lake as being dominated by rock-weathering ***,other statistical analysis tools,such as Principal Component Analysis(PCA)and correlation strongly suggest the dominance of weather

关键词： Water quality profiling Major ions Rock weathering Anthropogenic Rara Lake Himalayas

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Polyurea coating for foamed concrete panel:An efficient way to resist explosion

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Defence Technology（防务技术） 2020年第1期16卷 136-149页

作者： Yi-shun Chen bo wang Bei Zhang Qing Zheng Jian-nan Zhou Feng-nian Jin Hua-lin fan State Key Laboratory for Disaster Prevention&Mitigation of Explosion&Impact Army Engineering University of PLANanjing 210007China Research Center of lightweight Structures and Intelligent Manufacturing State Key Laboratory of Mechanics and Control of Mechanical StructuresNanjing University of Aeronautics and AstronauticsNanjing 210016China State Key Laboratory of Disaster Reduction in Civil Engineering Tongji UniversityShanghai 200092China

Autoclaved aerated concrete(AAC) panels have ultra-light weight,excellent thermal insulation and energy absorption,so it is an ideal building material for protective *** improve the blast resistance of the AAC panels,three schemes are applied to strengthen the AAC panels through spraying 4 mm thick polyurea coating from top,bottom and *** three-point bending tests,the polyurea-coated AAC panels have much higher ultimate loads than the un-coated panels,but slightly lower than those strengthened by the carbon fiber reinforced plastics(CEFRPs).Close-in explosion experiments reveal the dynamic strengthening effect of the polyurea *** scaled distances of the strengthened AAC panels are acquired,which are valuable for the engineering application of the AAC panels in the extreme loading *** coatings efficiently enhance the blast resistance of the bottom and double-sided polyurea-coated AAC *** is interesting that the polyurea-coated AAC panels have much more excellent blast resistance than the CFRP reinforced AAC panels,although the latter have better static mechanical properties.

关键词： Autoclaved aerated concrete Polyurea Explosion Failure

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Intermediate Temperature Fatigue Induced Precipitation and Associated Corrosion in CrMnFeCoNi High Entropy Alloy

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Acta Metallurgica Sinica(English Letters) 2023年第11期36卷 1857-1869页

作者： Tiezhuang Han Jing wang bo li Shuang li Kaisheng Ming Fucheng wang Bin miao Shijian Zheng Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology School of Materials Science and EngineeringHebei University of TechnologyTianjin300401China

Understanding the corrosion behavior of high entropy alloys(HEAs)after intermediate temperature fatigue is critical to prevent their catastrophic failures from the reduction of corrosion ***,we investigated the corrosion behavior of CrMnFeCoNi HEA after 500℃ fatigue test with strain amplitudes of 0.2%and 0.5%.The intermediate temperature fatigue induced two types of precipitates,which were determined as Cr-richσphase and NiMn-rich L10 *** strain amplitude not only promoted precipitates generations but also spread the nucleation sites from intergranular to both intergranular and ***,we found that the deterioration in corrosion resistance of the alloy was derived from the increase of precipitates,which destroyed the stability of the passive *** above results revealed that intermediate temperature fatigue impaired the stabilization of the solid solution state and subsequent corrosion resistance of CrMnFeCoNi HEA,where the higher strain amplitude led to more precipitates and more severe corrosion.

关键词： High entropy alloy Corrosion Intermediate temperature fatigue Phase stability Precipitate

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Dynamic Soft Reduction for Continuously Cast Rail Bloom

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Journal of Iron and Steel Research International 2007年第5期14卷 13-17,51页

作者： CHEN Yong li Gui-jun YANG Su-bo ZHU miao-yong School of Materials and Metallurgy Northeastern University Shenyang 110004 Liaoning China Department of Material Research Panzhihua Iron and Steel Research Institute Panzhihua 617000 Sichuan China Vanadium Recovery andSteelmaking Plant Panzhihua New Steel and Vanadium Co Ltd Panzhihua 617062 Sichuan China

Center porosity and centerline segregation in continuously cast bloom can be minimized by the well-known method of dynamic soft reduction. Metallurgical results of soft reduction previously employed in continuous bloom casting for heavy rail steel in Panzhihua Iron and Steel Group were not fully achieved because of the improper soft reduction process. Therefore, experiments for optimizing the process parameters of soft reduction for bloom were carried out. The results show that the proportion of the center porosity, which is less than 1.0, increases from 28.41% to 99.81%, while the proportion of the centerline segregation class increases from 40.91% to 100%, and the proportion of the central cavity increases from 92.05% to 100%, whereas the center carbon segregation index decreases from 1.17 to 1.05. The internal quality and the mechanical performance of the rails produced from continuously cast blooms meet the requirement of high-speed tracks of 350 km/h.

关键词： continuous bloom casting dynamic soft reduction rail steel internal quality

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Joint Characteristics and Corrosion Properties of Bypass-Current Double-Sided Arc-Welded Aluminum 6061 Alloy with Al–Si Filler Metal

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Acta Metallurgica Sinica(English Letters) 2016年第4期29卷 360-366页

作者： Yu-Gang miao Ben-shun Zhang Bin-Tao wu Xiao-Xiao wang Guang-Yu Chen Duan-Feng Han National Key Laboratory of Science and Technology on Underwater Vehicle Harbin Engineering University

Sheets of aluminum 6061 alloy were welded using bypass-current double-sided arc welding with Al-Si filler wire to investigate the effect of Al-Si intermetallic compounds on the microstructure, microhardness and corrosion behavior of weld joint. Experimental results indicated that the Al4.5FeSi phase in the topside of the weld joint was finer than that in the backside and newly formed phase of Al0.5Fe3Si0.5 was observed in the backside. The formation of reinforcing phases of Al-Fe-Si in the weld improved the microhardness of the weld by about 18%. The corrosion resistance of the weld zone was greater than that of the base metal, while the corrosion current displayed opposite, and the corrosion resistance of the weld region was better than that of the base metal.

关键词： Bypass-current double-sided arc welding Aluminum 6061 alloy Joint characteristics Interface analysis Microhardness Corrosion behavior

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