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Progress in laparoscopic anatomy research: A review of the Chinese literature

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World Journal of Gastroenterology 2010年第19期16卷 2341-2347页

作者： Li, Li-Jie zheng, xiang-Min Jiang, Dao-Zhen Zhang, Wei Shen, Hong-Liang Shan, Cheng-xiang Liu, Sheng Qiu, Ming Second Mil Med Univ Changzheng Hosp Minimally Invas Surg Ctr 18 F Shanghai 200003 Peoples R China

The development of laparoscopic surgery has generated the new field of study, laparoscopic anatomy. This article reviews the reported literature on laparoscopic anatomy and explores how it has evolved along with advances in abdominal surgery. In addition, the principal concerns in current laparoscopic anatomy research are discussed, including: (1) types of special adjacent anatomical structures; and (2) special surgical planes and anatomical landmarks. Understanding of systematic laparoscopic anatomy can provide the junior surgeons a clear procedural approach, and would benefit laparoscopic surgeons in training.

关键词： Anatomy Landmark Laparoscopy Minimally invasive Surgical plane

The driving factors and their interactions of fire occurrence in Greater Khingan Mountains, China

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Journal of Mountain Science 2020年第11期17卷 2674-2690页

作者： GUO Xiao-yi ZHANG Hong-yan WANG Ye-qiao ZHAO Jian-jun ZHANG zheng-xiang Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains Ministry of EducationSchool of Geographical SciencesNortheast Normal UniversityChangchun 130024China Department of Natural Resources Science University of Rhode IslandKingstonRhode Island 02881USA

Fire is an important disturbance in terms of forest management.A comprehensive understanding of the relationships between the spatial distribution of fire occurrence and its driving factors are critical for effective forest fire *** reveal biogeoclimatic and anthropogenic influences,this study introduced a geographical detector model to quantitatively examine the effects of multiple individual factors and their combinations on spatial patterns of fire occurrence in the Greater Khingan Mountains between 1980 and *** geographical detector computes the explanatory power(q value)to measure the connection between driving factors and spatial distributions of fire *** density estimation revealed the spatial variability of fire occurrence which was impacted by bandwidth.30 km might be the optimal bandwidth in this *** biogeoclimatic and anthropogenic effects were explored using topography,climate,vegetation,and human activity factors as *** results indicated that solar radiation had the most influence on the spatial pattern of fire occurrence in the study ***,Normalized Difference Vegetation Index,temperature,wind speed,and vegetation type were determined as the major driving *** various groups of driving factors,climate variables were the dominant factors for the density of fire occurrence,while vegetation exerted a strong *** interactions between the driving factors had a more significant impact than a single ***,the factors in the topography and human activity groups exhibited weaker ***,their effects were enhanced when combined with climate and vegetation *** study improves our understanding of various driving factors and their combined influences on fire occurrences of the study area in a spatial *** findings of this study verify that the geographical detector is applicable in revealing the driving factors of fire occurrence.

关键词： Fire occurrence Driving factors Interactions Geographical detector Greater Khingan Mountains

NIR-switchable local hydrogen generation by tandem bimetallic MOFs nanocomposites for enhanced chemodynamic therapy

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Regenerative Biomaterials 2024年第1期3卷 58-68页

作者： Jun Zhong xiang zheng Yuan Wen Yuewei Li Jianting Zhang Ranjith Kumar Kankala Shibin Wang Aizheng Chen Institute of Biomaterials and Tissue Engineering Huaqiao UniversityXiamen 361021China Fujian Provincial Key Laboratory of Biochemical Technology Huaqiao UniversityXiamen 361021China Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion Huaqiao UniversityXiamen 361021China

The inadequate quantity of hydrogen peroxide(H_(2)O_(2))in cancer cells promptly results in the constrained success of chemodynamic therapy(CDT).Significant efforts made throughout the years;nevertheless,researchers are still facing the great challenge of designing a CDT agent and securing H_(2)O_(2) supply within the tumor *** this study,taking advantage of H_(2)O_(2) level maintenance mechanism in cancer cells,a nanozyme-based bimetallic metal-organic frameworks(MOFs)tandem reactor is fabricated to elevate intracellular H_(2)O_(2) levels,thereby enhancing *** addition,under nearinfrared excitation,the upconversion nanoparticles(UCNPs)loaded into the MOFs can perform photocatalysis and generate hydrogen,which increases cellular susceptibility to radicals induced from H_(2)O_(2),inhibits cancer cell energy,causes DNA damages and induces tumor cell apoptosis,thus improving CDT therapeutic efficacy *** proposed nanozyme-based bimetallic MOFs-mediated CDT and UCNPs-mediated hydrogen therapy act as combined therapy with high efficacy and low toxicity.

关键词： chemodynamic therapy nanozyme bimetallic MOFs gas therapy

A facile preparation and electrochemical properties of nickel based compound-graphene sheet composites for supercapacitors

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Chinese Chemical Letters 2015年第5期26卷 522-528页

作者： Li-Bin Zhang Sheng-Rong Yang Jin-Qing Wang Ye Xu xiang-zheng Kong State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of Sciences Graduate University of Chinese Academy of Sciences College of Chemistry and Chemical Engineering University of Jinan

Composites of a nickel based compound incorporated with graphene sheets （NiBC-GS） are prepared by a simple flocculation, using hydrazine hydrate as flocculant and reductant, from a homogeneous intermixture of nickel dichloride and graphene oxide dispersed in N,N-dimethylformamide. Morphology, microstructure and thermal stability of the obtained products were characterized by field-emission scanning electron microscopy, X-ray diffraction and thermal gravimetric analysis. Furthermore, the electrochemical properties of NiBC-GS, as electrode materials for supercapacitors, were studied by cyclic voltammetry and galvanostatic charge]discharge in 2 mol L 1 KOH solution. It was determined that for NiBC-GS annealed at 250 ~C, a high specific capacitance of 2394 F g 1 was achieved at a current density of 1 A g^-1, with 78% of the value （i.e., 1864 F g^-1） retained after 5000 times of repeated galvanostatic charge/discharge cycling. The high specific capacitance and available charge/discharge stability indicate the synthesized NiBC-GS250 composite is a good candidate as a novel electrode material for supercapacitors.

关键词： Nickel based compound Graphene Electrochemical performance Supercapacitors

Single-cell profiling lights different cell trajectories in plants

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aBIOTECH 2021年第1期2卷 64-78页

作者： Hong-xiang zheng Feng-hui Wu Si-min Li Xian Sheng Zhang Na Sui Shandong Provincial Key Laboratory of Plant Stress College of Life SciencesShandong Normal UniversityJi’nan 250014ShandongChina State Key Laboratory of Crop Biology College of Life SciencesShandong Agricultural UniversityTai’an 271018ShandongChina

The molecular mechanism of the maintenance and differentiation of plant stem cells is an eternal theme in studies on plant growth and *** advances in single-cell RNA sequencing(scRNAseq)methods have completely changed the understanding of cell heterogeneity and cell function,allowing research precision to identify the differentiation trajectory of stem cells maintained and differentiated at the cellular *** review aimed to mainly discuss the novel insights provided by scRNA-seq for the maintenance and initiation of plant stem cells,cell differentiation,cell response to environmental changes,and improvement strategies for *** addition,it highlighted additional perspectives beyond scRNA-seq,such as spatial transcriptomes,epigenomes,and single-cell multiomics,for a renewed understanding of stem cell maintenance and cell differentiation,thus providing potential targets and theoretical foundations for crop improvement.

关键词： Epigenomes Plant development Plant stem cells Single-cell multi-omics Single-cell RNA sequencing

Solitary Wave Solutions of KP equation,Cylindrical KP Equation and Spherical KP Equation

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Communications in Theoretical Physics 2017年第2期67卷 207-211页

作者： xiang-zheng Li Jin-Liang Zhang Ming-Liang Wang School of Mathematics and Statistcs Henan University of Science and Technology Luoyang 471023 China School of Mathematics and Statistcs Lanzhou University Lanzhou 730000 China

Three(2+1)-dimensional equations–KP equation, cylindrical KP equation and spherical KP equation, have been reduced to the same Kd V equation by different transformation of variables respectively. Since the single solitary wave solution and 2-solitary wave solution of the Kd V equation have been known already, substituting the solutions of the Kd V equation into the corresponding transformation of variables respectively, the single and 2-solitary wave solutions of the three(2+1)-dimensional equations can be obtained successfully.

关键词： 2-Solitary wave solution KP equation cylindrical KP equation spherical KP equation transformation of variables

The effect of preparation conditions of Pt/Al2O3 on its catalytic performance for the H2-SCR in the presence of oxygen

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Frontiers of Environmental Science & Engineering 2013年第3期7卷 457-463页

作者： Lei YUAN xiang zheng Kaijiao DUAN Hao HU Jinggang WANG Seong Ihl WOO Zhiming LIU State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 China School of Environment & Natural Resources Renmin University of China Beijing 100872 China Department of Chemical and Biomolecular Engineering Graduate School of EEWS(WCU) Korea Advanced Institute of Science and Technology Daejeon 305-701 Korea

Selective catalytic reduction of NOχ by H2 in the presence of oxygen has been investigated over Pt/ A12O3 catalysts pre-treated under different conditions. Catalyst preparation conditions exert significant influence on the catalytic performance, and the catalyst pre-treated by HE or H2 then followed by O2 is much more active than that pre-treated by air. The higher surface area and the presence of metallic Pt over Pt/A12O3 pre-treated by HE or pretreated by H2 then followed by O2 can contribute to the formation of NO2, which then promotes the reaction to proceed at low temperatures.

关键词： NOx reduction Pt/A12O3 preparation condi-tion H2-SCR

Effect of axial static magnetic field on cleanliness and microstructure in magnetically controlled electroslag remelted bearing steel

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Journal of Iron and Steel Research International 2021年第12期28卷 1562-1573页

作者： Qiang Li Zhi-bin Xia Yi-feng Guo Zhe Shen Tian-xiang zheng Biao Ding Yun-bo Zhong School of Materials Science and Engineering State Key Laboratory of Advanced Special SteelShanghai Key Laboratory of Advanced FerrometallurgyShanghai UniversityShanghai200444China

The effect of the axial static magnetic field(ASMF)on cleanliness and microstructure in magnetically controlled electroslag remelted GCr15 bearing steel ingots was investigated *** results show that a magnetically controlled spin-vibration induced by the interaction of the ASMFs and the remelting current exists at the consumable electrode tip,resulting in thinner liquid melt film and smaller *** the increase in magnetic flux density,the optimization effect of ASMFs on electroslag remelting process increases and reaches the peak with a 40 mT ASMF,then *** cleanliness of the ingots was improved,and the count of inclusions larger than 5μm was *** microstructure of the ingots processed with a 40 mT ASMF was significantly *** depth of the metallic molten pool was reduced from 45.2 to 17.5 mm with the application of 40 mT *** tensile strength,impact toughness,and Rockwell hardness of the ingots obtained under the 40 mT ASMF were significantly *** mechanisms of the spin-vibration occurring at the electrode tip end were interpreted in detail to elucidate the effect of ASMFs.

关键词： Magnetically controlled electroslag remelting Axial static magnetic field Inclusion removal Molten pool Alternating Lorentz force Cleanliness GCr15 bearing steel

Synthesis,Structure and Photophysical Properties of Heteronuclear Pt_2Cu Alkynyl Complexes

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Chinese Journal of Structural Chemistry 2015年第5期34卷 757-763页

作者： LI Zhi-Hong GUO Wen-Jing XIE zheng-xiang WANG Yong-Tao WEI Qiao-Hua Institute of Nanomedicine and Nanobiosensing College of ChemistryFuzhou University State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter and Graduate School of CASthe Chinese Academy of Sciences

Two luminescent hetero-trinuclear complexes [Pt2Cu（μ-dpppy）2（C≡CC6H4R-4）4]（Cl O4）（R = H,1;R = CH3,2;dpppy = 2,6-bis（diphenylphosphino）pyridine） have been synthesized and characterized by elemental analyses,ESI-MS,^1H and ^31P{^1H} NMR spectroscopy,and X-ray crystallography for *** photophysical properties in the solid state and in solutions at room temperature and in frozen glasses at 77 K were *** complexes 1 and 2 show strong orange-red emission in the solid state at room temperature and in frozen glasses at 77 K,and weak emission in solutions.

关键词： platinum(Ⅱ) copper(I) crystal structure heteronuclear alkynyl complexes