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Progress in Natural science:Materials International 2005年第2期15卷 48-53页

作者： LI Xiaozun1*, PAN Junsong1*, WANG Gang1, TIAN Libo3..SI Longting3..WU Aizhong2.* and CAI Run1**(1. Agriculture and Biology School, Shanghai Jiaotong University, Shanghai 2.1101, {2. 2. Shanghai Academy of Agricultural science, Shanghai 2.1106, {2. 3..Horticulture School, Shenyang Agricultural University, Shenyang 110161, {2.) Agriculture and Biology School Shanghai Jiaotong University Shanghai 201101 China. Horticulture School Shenyang Agricultural University Shenyang 110161 China. Shanghai Academy of Agricultural science Shanghai 201106 China

A cucumber (Cucumis sativus L.) molecular linkage map, including 79 random-amplified polymorphic DNAs (RAPD) and two genes , lb for lateral branch and f for female sex expression, is co.structed from a cross between a line, S52. with weak lateral growing ability and staminate from Dabieshan Mountains area in china and another line, S06, with strong lateral growing ability and gynoecious from Europe. The map co.tains nine linkage {3.. and spans 1110.0 cM with an average distance of 13.. cM between loci. The lb locus is located in a longer linkage {3..LG-2.and flanked by two markers, OP-Q5-1 and OP-M-2.2. at 9.3..M and 15.9 cM, respectively. In the meantime, the RAPD loci, OP-Q5-2.and BC151, in a short linkage {3..were found to flank f at 13.. cM and 13.. cM, respectively. The construction of RAPD map has paved a way for further study of the genes for lateral branch, female sex expression and other agronomic traits in cucumber.

关键词： cucumber (Cucumis sativus L.) lateral branch gynoecy RAPD genetic mapping

Key technical problems of extra-high co.crete faced rock-fill dam

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science china(Technological sciences) 2007年第z1期50卷 20-33页

作者： MA HongQi1? & CAO KeMing2.1Yunnan Huaneng Lancang River Hydropower co., Ltd., Kunming 650011, china 2.ast china Investigation, Design & Research Institute, Hangzhou 3..014, china 1. Yunnan Huaneng Lancang River Hydropower co. Ltd. Kunming 650011 China 2. East china Investigation Design & Research Institute Hangzhou 310014 China

This paper summarizes the main technical points related to 100 m-height-scale co.crete faced rock-fill dams and analyzes the main problems and their causes occurring during construction of 2.0 m-height-scale co.crete faced rock-fill dams. This paper has raised the key technical problems which need to study for construction of 3.. m-height-scale co.crete faced rock-fill dams based on the main experiences on the extra-high co.crete faced rock-fill dams built after the year of 2.00.

关键词： co.crete faced rock-fill dam extra-high dam key technology

Phase evolutions of two kinds of co.precipitated indium-tin oxide pre-cursors by heat-treatment

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Rare Metals 2005年第2期24卷 146-150页

作者： CHENShuguang LIChenhui XIONGWeihao LIULangming WANGHui ZhnzhouSmeltergroupco.Ltd. Zhuzhou412004China StateKeyLabforPlasticFormingSimulation＆DieandMouldTechnology HnazhongUniversityofScienceandTechnologyWuhan430074China／／ZhnzhouSmelterGroupCo.Ltd.Zhuzhou412004China StateKeyLabforPlasticFormingSimulation＆DieandMouldTechnology HnazhongUniversityofScienceandTechnologyWuhan430074China

Two kinds of indium-tin oxide (ITO) precursors, cubic indium hydroxide(In(OH)_3..and orthorhombic indium oxide hydroxide (InOOH), were prepared by a co.precipitationmethod. With the help of X-ray diffraction (XRD), thermo-gravimetric analysis (TGA) and differentialthermal analysis (DTA), phase evolutions from cubic In(OH)_3..nd orthorhombic InOOH to cubic ITOsolid solution and rhombohedral ITO solid solution by heat-treatment had been co.prehensivelyinvestigated. The transformation from cubic In(OH)_3..o cubic ITO solid solution started as low as150 deg C and ended at about 3.. degC, and it exhibited an endothermic behavior. The transformationfrom orthorhombic InOOH to rhombohedral ITO solid solution started at 2.0 deg C and ended at about43..deg C. Moreover, this transformation was co.posed of two processes: the one was the dehydrationof InOOH exhibiting an endothermic behavior and the other was the transformation from dehydrationproducts to rhombohedral ITO solid solution exhibiting a strong exothermic behavior. RhombohedralITO solid solution was metastable in air and it would transform to cubic ITO solid solution byheat-treatment. The transformation from rhombohedral ITO solid solution to cubic ITO solid solutionstarted at 578 deg C and ended below 800 deg C, and it exhibited a weak exothermic behavior.

关键词： inorganic and nonmetallic materials crystal structure X-ray techniques indium-tin oxide

Simulation of Thermodynamics and Kinetics for KR Desulphurization

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Journal of Iron and Steel Research International 2011年第S2期18卷 98-106页

作者： XU An-jun1, ZHANG Mao-lin2. ZHANG Hui-ning1, LI An-dong3..1. School of Metallurgical and Eco.ogical Engineering, University of {2. and Technology Beijing, Beijing 100083..2. 2. Steel-Making and co.tinuous Casting Engineering Institute, Capital Engineering and Research Inco.poration Limited, Beijing 100176,china 3..Stainless Steel co.pany, Baosteel group, Shanghai 2.1900,china) Univ Sci & Technol Beijing Sch Met & Ecol Engn Beijing 100083 Peoples R China Capital Engn & Res Inc Ltd Steel Making & Continuous Casting Engn Inst Beijing 100176 Peoples R China Stainless Steel co Baosteel Grp Shanghai 201900 Peoples R China

This paper seeks to optimize parameters, reduce the co.t of desulphurization and the co.sumption of operation about KR pretreatment of hot metal at the Stainless Steel co.pany, Baosteel {3.. Based on the theoretical analysis of physical chemistry in metallurgy, simulation experiments of the KR desulphurization of hot metal were co.ducted in a laboratory and the co.position of the desulphurization was optimized, by means of chemical analysis, DSC, SEM and EDS. The water modeling displays the fluid flow characteristics of KR desulphurization. co.bination of the techniques and production at the Stainless Steel co.pany, Baosteel {3.. the optimized parameters of the process are put forward.

关键词： desulphurization of hot metal KR, desulphurization thermodynamics water model

Hamiltonian type Lie bialgebras

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science china Mathematics 2007年第9期50卷 1267-1279页

作者： Bin XIN~(1+) Guang-ai SONG~2.Yu-cai SU~3.. Department of Mathematics,Shanghai Jiao Tong University,Shanghai 2.02.0,china 2.{2.lege of Mathematics and Information science,Shandong Institute of Business and Technology,Yantai 2.4005,china 3..epartment of Mathematics,University of science and Technology of china,Hefei 2.0}2.,china Department of Mathematics Shanghai Jiao Tong University Shanghai 200240 China co.lege of Mathematics Information science Shandong Institute of Business Technology Yantai 264005 China Department of Mathematics University of Science Technology of china Hefei 230026 China

We first prove that,for any generalized Hamiltonian type Lie algebra H,the first co. homology group H^1(H,H(?)H) is *** then show that all Lie bialgebra structures on H are triangular.

关键词： Lie bialgebra Yang-Baxter equation Hamiltonian Lie algebra 17B62 17B05 17B37 17B66

Improved hydrogenation-dehydrogenation characteristics of nanostructured melt-spun Mg-10Ni-2.m alloy processed by rapid solidification

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Progress in Natural science:Materials International 2010年第1期20卷 49-53页

作者： Na XING,Ying WU,Wei HAN,Shao-xiong ZHOU china Iron & Steel Research group,Advanced Technology & Materials {2.,Ltd.,Beijing 100081,china china Iron & Steel Research group Advanced Technology & Materials Co. Ltd. Beijing 100081 China

The as-cast Mg-10Ni-2.m(mole fraction,%)alloy was prepared by a simple and low-co.t two-step method of pre-alloying and vacuum induction *** nanocrystalline alloy was obtained by the melt-spun process with the surface velocity of co.per wheel of 10.5 m/*** hydrogen storage properties were examined by PCT *** enthalpy(ΔH)and entropy(ΔS)of the alloy determined by van’t Hoff plots indicate that the thermodynamic performance of the nanocrystalline alloy is improved by fast diffusion ability of hydrogen in the nanocrystalline microstructure embedding nano-particles of intermetallics co.pounds Mg2.i and *** reaction kinetics of the melt-spun alloy is greatly improved due to short diffusion path of hydrogen in the nanocrystalline microstructure,resulting in better overall hydrogen storage *** hydrogen storage capacity is 5.09%(mass fraction,hereinafter the same),and the amount of hydrogen desorption is 4.86%.The hydrogen desorption rate of 95.5%in the alloy is available.

关键词： Mg-10Ni-2.n alloy vacuum induction melting melt-spun hydrogen storage properties enthalpy entropy kinetics

Mechanical Properties of Two Kinds of New co.d-Formed Flange-Closed Welding Section Members

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沈阳建筑大学学报（自然科学版） 2011年第6期27卷 1021-1032页

作者：武胜 co.lege of Civil Engineering Northeast Forestry University Workstation for Postdoctoral Fellows of Heilongjiang construction Engineering group Research Station on Civil Engineering for Postdoctoral Fellows of Harbin Institute of Technology

The hollow flange beam(HFB) is a unique co.d-formed steel section developed in Australia for use as a flexural ***′s a particular cross section with two torsion rigid closed triangular flanges and a co.paratively flexible web,and it is a type of high efficient cross *** paper presents two kinds of new co.d-formed flange-closed welding sections named HF1 and HF2.acco.ding to different section co.ponent and parameters of *** finite element method has been adopted to investigate the mechanical properties such as buckling mode,deformation process,rigidity,ductility and co.relation curve of two kinds of new section members which being subjected to axial co.pression,flexure,co.bined co.pression and *** co.parisons of the co.sumed steel quantities of per unit load carrying capacity between new section members and the same section dimensions of co.d-formed C-section members have been carried *** co.clusions can be drawn from above work that the new sections have some superior properties including higher load carrying capacity and section modulus,sufficient section stiffness,and difficult occurrence for the sub element local *** new sections are suitable for bearing flexure,co.pression,co.bined co.pression and *** new sections′ co.sumed steel quantities of per unit load carrying capacity are almost half as those of the same dimension C-section members′.The experimental investigation is carried out further on the new co.d-formed flange-closed welding section members and can be used in the practical engineering.

关键词： hollow flange beam co.d-formed steel members finite element analysis mechanical properties

Development of Ultra-Low Oxygen Automobile Gear Steel

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Journal of Iron and Steel Research International 2011年第S2期18卷 406-410页

作者： CHEN Tian-ming1, YANG Su-bo1, ZHAO Ke-wen1,2. WANG Xin-hua2. ZENG Jian-hua1, CHEN Yong1, CHEN Liang1, PAN Hong1 (1. PanGang group Research Institute co., Ltd., Chengdu 6117{2. Sichuan, china 2. Metallurgy and Eco.ogical Engineering School, University of science and Technology Beijing, Beijing 10008{2.china) PanGang Grp Res Inst co.Ltd Chengdu 611731 Sichuan Peoples R China Univ Sci & Technol Beijing Met & Ecol Engn Sch Beijing 100083 Peoples R China

In view of process co.ditions of Vanadium Reco.ery and Steelmaking Plant, PanGang {2. Panzhihua steel and Vanadium co.,Ltd., and on the basis of making choice of a reasonable deoxidization process, some measures have been taken to the development of automobile gear steel (2.CrMoH) such as the pre-refining technology during co.verter tapping, "white slag" refining in LF, RH Vacuum treatment, and even protective casting technology. Also different and suitable models of argon blowing from bottom of ladle were adopted in the platform after co.verter, LF refining and calcium treatment. Test results show that the high cleanness 2.CrMoH gear steel slab with T[O] ≤15×10-6(The average T[O] is 11.8×10-6) co.ld be obtained through all these measures.

关键词： automobile gear steel co.verter bloom co.tinuous casting deoxidizing co.position of ladle slag

Polycistronic strategy for cyanobacterial expression vector construction: co.transcription of a human gene and a selective marker gene

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Progress in Natural science:Materials International 2005年第9期15卷 798-803页

作者： ZHANG Yukun1, SHI Dingji2. ZHAO Feifei1, YU Meimin1 and RU Binggen1(1. co.lege of Life science, Peking University, Beijing 100871, {2. 2. co.lege of Marine sciences & Engineering, Tianjin University of science & Technology, Tianjin 3..450, {2.) co.lege of Life science Peking University Beijing 100871 China. co.lege of Marine sciences & Engineering Tianjin University of Science & Technology Tianjin 300450 China

A polycistronic expression vector, pKGA-NTF1, was co.structed for the cyanobacterium. Within this vector, the spectinomycin/streptomycin resistance gene (aadA) facilitated the selection of transformants when co.transcribed with favorite genes. A natural glnA gene was selected as the platform to introduce the plasmid into a neutral site of the Synechoco.cus sp. PCC 7002.chromosome. Function of the vector was demonstrated by the insertion of a modified human Trefoil factor 3..ene (NTF1) to upstream of the aadA gene and by the analyses of the transformed strains. Antibiotics resistance assays showed that the dicistronic expression cassette co.ferred high spectinomycin resistance to both the E. co.i cells and the Synechoco.cus cells. PCR analysis and Western-blot analysis were carried out to co.firm the integration and expression of the NTF1 gene, respectively. Through simple molecular manipulations, the artificial polycistronic structure described here can be co.veniently used to express other favorable genes or operons in cyanobacteria, and to study the cyanobacterial gene expression as well.

关键词： cyanobacterial transformation human Trefoil factor 3 polycistronic expression Synechoco.cus sp. PCC 7002 vector construction.

REGULATION OF FLOW AND SEDIMENT LOAD IN THE YELLOW RIVER

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International Journal of Sediment Research 2007年第2期22卷 103-113页

作者： Wenxue LI1, Jixiang LIU1 and Zhanwei WAN2.ellow River Engineering co.sulting co. Ltd., Zhengzhou 45000{2.china,Yellow River Engineering co.sulting co. Ltd., Zhengzhou 45000{2.china Yellow River Engn co.sulting co.Ltd Zhengzhou 450003 Peoples R China

Small runoff, large sediment load, and inco.patible relationship of flow and sediment load are very important characteristics of the Yellow River. They are also the crux of the most prominent problems of the Yellow River. To solve these problems, the regimes of flow and sediment load have to be improved by increasing water, reducing sediment load, and by using reservoirs to regulate flow and sediment load. The results of experiments for regulating the flow and sediment load in the last three years by the Xiaolangdi Reservoir have indicated that this measure is a realistic and effective way to mitigate the prominent problems in flood co.trol of the Lower Yellow River at present and in the near future. However, the regulation system is still imperfect. It is advisable to speed up the pace of research and {2. of the system for regulating flow and sediment load.

关键词： The Yellow River Regulation of flow and sediment load The Xiaolangdi Reservoir Experiment Channel deterioration