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Does poverty-alleviation-based industry development improve farmers'livelihood capital?

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Journal of Integrative Agriculture 2021年第4期20卷 915-926页

作者： LIU Ming-yue feng xiao-long WANG San-gui ZHONG Yu Institute of Agricultural Economics and Development Chinese Academy of Agricultural SciencesBeijing 100081P.R.China College of Economics and Management China Agricultural UniversityBeijing 100083P.R.China School of Agricultural Economics and Rural Development Renmin University of ChinaBeijing 100872P.R.China

Targeted poverty alleviation is a unique approach adopted in China to help achieve the vision of a moderately prosperous society in all aspects and the"Chinese Dream".Industrial development as a means of poverty alleviation is an integral part of the"Five-pronged Poverty Alleviation Measures"Project of targeted poverty alleviation,and a critical foundation for other poverty alleviation *** this study,a comprehensive evaluation method was used to measure farmers'livelihood based on the framework of sustainable ***,the effects of industrial development on farmers'livelihood capital were estimated by employing the propensity score matching combined with the difference-in-differences(PSM-DID)*** suggest that industrial development had a significantly positive effect on the livelihood capital of *** development can significantly enhance farmers'human,social and financial capital,while it cannot significantly affect the natural and physical *** development had heterogeneous effects on farmers'livelihood capital,more efficiently impacting on the non-poor than the *** effects on farmers'livelihood capital varied across regions,with Guizhou experiencing a larger effect than ***,the effect was insignificant for farmers in *** improve farmers'livelihood capital,it is necessary to take measures to strengthen their human capital,promote the innovation of financial products,and make good use of their social capital;it is also essential to strengthen the support of industrial development to the poor.

关键词： targeted poverty alleviation poverty alleviation by industrial development the poor livelihood capital PSM-DID approach

Synthesis,Characterization,and DNA Binding Properties of Dinuclear Copper(Ⅱ) Complex [Cu_2(TATP)_2(L-Leu)_2(ClO_4)_2]_2·2H_2O

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Chemical Research in Chinese Universities 2008年第4期24卷 401-406页

作者： GU Qin LIN Qing-bin LIU Ying-ju LE Xue-yi feng xiao-long Department of Applied Chemistry College of Sciences South China Agricultural University Guangzhou 510642 P. R. China Center of Analysis and Measurement Zhongshan University Guangzhou 510275 P. R. China

A dinuclear copper（Ⅱ） complex[Cu2（TATP）2（L-Leu）2（CIO4）2]2·2H2Owas synthesized and characterized, where, TATP=1,4,8,9-tetraazatriphenylene, and L-Leu=L-leucinate. The complex was crystallized in the triclinic space group P1, with two independent molecules in a unit cell. Two Cu（Ⅱ） ions in each complex [Cu2（TATP）2（L-Leu）2（CIO4）2] molecule were found to be in different coordination geometries, i.e., Cu2 or Cu4 of a distorted square-pyramidal geometry coordinated with two nitrogens of TATP, the amino nitrogen and one carboxylate oxygen of L-Leu and one oxygen of perchlorate, and Cul or Cu3 with an octahedral geometry coordinated with the above stated similar coordinated atoms, and another carboxylate oxygen of L-Leu coordinating to Cu2 or Cu4. The complex can interact with CT-DNA by an intercalative mode and cleave pBR322 DNA in the presence of ascorbate.

关键词： Copper(Ⅱ) complex 1,4,8,9-Tetraazatriphenylene L-Leucinate DNA

Synthesis of a New Asymmetrical Ether Diamine with Aromatic Structure and Related Polyimide

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Chinese Chemical Letters 2006年第5期17卷 635-636页

作者： Yu SHAO Yah feng LI xiao long WANG Shu Jiang ZHAN Xin ZHAO Tao MA State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000

A new aromatic asymmetrical ether diamine, 1,4-bis（3＇,4’-diaminophenoxy）benzene 3 was synthesized in three steps, using hydroquinone as starting material. A new aromatic polyimide containing asymmetrical diaryl ether segments was prepared from the resulting diamine with 4,4＇-oxydiphthalic anhydride （ODPA） via a conventional two-step thermal or chemical imidization method. The resulting polyimide exhibits high thermal resistance, excellent solubility, film-forming capability, high mechanical strength and modulus.

关键词： Polyimide asymmetrical ether diamine aromatic polyimide.

Synthesis, Properties and Structureof a Novel Unsymmetrical Bis (phenoxo) BridgedBinuclear Copper (Ⅱ) Complex

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Chemical Research in Chinese Universities 2001年第2期17卷 148-152页

作者： LU Tong-bu , LI Yan-wu, feng xiao-long CAl Ji-wen, LI xiao-yan and JI Liang-nian (Department of Chemistry and Center of Measurement, Zhongshan University, Guangzhou 510275, P. R. China) 中山大学广东广州 510275

A novel bis (phenoxo) bridged binuclear copper ( II) complex with dissimilar coordination environments was synthesized and characterized by spectroscopies and X-ray crystallography. It crystallized in the monoclinic system with space group C2/c, a=2. 241 1(2) nm, b=1. 834 2 (2) nm, c=1.877 9(2) nm, β=122.861(2)°, V=6.484 3(11) nm3, Z=8. Itconsistsof two unsymmetrical Cu (Ⅱ ) centers bridged by two phenolic oxygen atoms to yield a Cu2O2 core with the Cu-Cu separation of 0. 310 2 nm, in which Cul and Cu2 ions exhibit distorted N2O3 and N3O2 square pyramidal geometries, respectively.

关键词： Copper Binuclear complex Crystallization

Effect of transplantation of bone marrow stem cells on myocardial infarction size in a rabbit model

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World Journal of Emergency Medicine 2013年第4期4卷 304-310页

作者： Li-li Ji xiao-feng long Hui Tian Yu-fei Liu Department of Emergency Medicine Dalian Central Hospital Department of Emergency Medicine Second Affiliated Hospital of Dalian Medical University

BACKGROUND:Intravenous transplantation has been regarded as a most safe method in stem cell *** is evidence showing the homing of bone marrow stem cells(BMSCs) into the injured sites,and thus these cells can be used in the treatment of acute myocardial infarction(Ml).This study aimed to investigate the effect of intravenous and epicardial transplantion of BMSCs on myocardial infarction size in a rabbit ***:A total of 60 New Zealand rabbits were randomly divided into three groups:control group,epicardium group(group Ⅰ) and ear vein group(group Ⅱ).The BMSCs were collected from the tibial plateau in group Ⅰ and group Ⅱ,cultured and *** the three groups,rabbits underwent thoracotomy and ligation of the middle left anterior descending *** elevation of ST segment>0.2 mV lasting for 30 minutes on the lead Ⅱ and Ⅲ of electrocardiogram suggested successful introduction of myocardial *** weeks after myocardial infarction,rabbits in group Ⅰ were treated with autogenous BMSCs at the infarct region and those in group Ⅱ received intravenous transplantation of *** the control group,rabbits were treated with PBS following *** weeks after myocardial infarction,the heart was collected from all rabbits and the infarct size was *** heart was cut into sections followed by HE staining and calculation of infarct size with an image ***:In groups Ⅰ and Ⅱ,the infarct size was significantly reduced after transplantation with BMSCs when compared with the control group(P0.05).CONCLUSION:Transplantation of BMSCs has therapeutic effect on ***,epicardial and intravenous transplantation of BMSCs has comparable therapeutic efficacy on myocardial infarction.

关键词： Bone marrow stem cells Acute myocardial infarction Epicardial transplantation Intravenous transplantation Infarct size Rabbit

The Hilbert expansion of the Boltzmann equation in the incompressible Euler level in a channel

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Science China Mathematics 2025年第1期68卷 39-88页

作者： Feimin Huang Weiqiang Wang Yong Wang feng xiao Academy of Mathematics and Systems Science Chinese Academy of Sciences School of Mathematical Sciences University of Chinese Academy of Sciences Key Laboratory of Computing and Stochastic Mathematics (Ministry of Education) School of Mathematics and StatisticsHunan Normal University

The study of the hydrodynamic limit of the Boltzmann equation with physical boundary is a challenging problem due to the appearance of the viscous and Knudsen boundary *** this paper,the hydrodynamic limit from the Boltzmann equation with the specular reflection boundary condition to the incompressible Euler equations in a channel is *** on the multi-scaled Hilbert expansion,the equations with boundary conditions and compatibility conditions for interior solutions,and viscous and Knudsen boundary layers are derived under different scaling,***,some uniform estimates for the interior solutions,and viscous and Knudsen boundary layers are *** the help of the L2-L∞framework and the uniform estimates obtained above,the solutions to the Boltzmann equation are constructed by the truncated Hilbert expansion with multiscales,and hence the hydrodynamic limit in the incompressible Euler level is justified.

关键词： Boltzmann equation incompressible Euler equations hydrodynamic limit Hilbert expansion specular reflection boundary condition viscous boundary layer Knudsen boundary layer

Discovering True Identity—Interpretation of Fences Through Broad-Sensed Intertextuality

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海外英语 2019年第21期 194-195页

作者：丰小隆浙江越秀外国语学院

As the third play in August Wilson’s ten-play series,Fences marks a milestone for Wilson in the commercial arena and unquestionably affirms his mastery of the art of *** the theoretical framework of Julia Kristeva’s broad-sensed intertextuality,this paper explores the intertextual features of Fences to reveal that to survive in a hostile white-dominated environment where the idea of melting pot was advocated and racial discrimination remained widespread in 1950s,African Americans must discover the value of their true self.

关键词： Fences Intertextuality true identity south complex

Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： xiao Xiang feng Gao Yu-Gui Peng Peng Wu Zong-Lin Li Xue-feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

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能耗均衡的煤矿井下巷道WSN跨层路由协议

煤炭学报 2016年第2期41卷 522-530页

作者：任鹏张剑英冯小龙中国矿业大学信息与电气工程学院江苏徐州221116

为了适应煤矿井下巷道窄长的空间结构和复杂的环境,提高网络的稳定性和传输效率,提出一种能耗均衡跨层WSN路由传输协议(EBUCR)。分析数据传输不对称造成的网络能量空洞现象,提出基于有效密度函数ρ(x)的非均匀分簇算法,并在此基础上结... 详细信息

为了适应煤矿井下巷道窄长的空间结构和复杂的环境,提高网络的稳定性和传输效率,提出一种能耗均衡跨层WSN路由传输协议(EBUCR)。分析数据传输不对称造成的网络能量空洞现象,提出基于有效密度函数ρ(x)的非均匀分簇算法,并在此基础上结合跨层设计思想,将下一跳路由节点的链路可用带宽和节点负载容量作为选取路由节点的重要因素。仿真实验表明,与LEACH,HEED和EEUC三种算法比较,EBUCR满足非均匀分簇策略,有效的优化了网络的能量消耗,延长了网络的生命期,提高了网络吞吐量和传输率,更适用于井下巷道内大规模部署的节传感器节点数据传输控制。

关键词：无线传感器网络簇首生成密度能耗均衡跨层设计