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Force Parameter Model of 3-Roll Mills for co.tinuous co.d Rolling Wires

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International Journal of Minerals,Metallurgy and Materials 1999年第4期13卷 292-295页

作者： Baolong Zheng1 Li Sun2.Ruichen An2.Jin Wang1 Weichang Zhu1(l Material Science and Engineering School, University of Science and Technology beijing, beijing 100083,{2.2.Tangshan iron and Steel co. ltd., Tangshan 063000,{2.) Material Science and Engineering School University of Science and Technology Beijing Beijing 100083 China Tangshan Iron and Steel co. ltd. Tangshan 063000 China

Based on experimental data, the mathematical model of rolling force parameters of 3-roll mills was studied. the structure ofthe model was theoretically set up and the co.fficients were determined by static analysis of the data. the torque in co.tinuous rollingwas measured, and the characteristics and efficiency of 3-roll mills are investigated.

关键词： 3-roll mill force mathematical model co.d rolling wire

Functional Characterization of a Putative Nitrate Transporter Gene Promoter from Rice

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Acta Biochimica et Biophysica Sinica 2006年第11期38卷 795-802页

作者： Ting-Zhang HU~(1,3) Kai-Ming CAO~1 Mian XIA~2.Xi-Ping WANG~(1,2.) 1 Department of Biochemistry,School of Life Science Fudan University,Shanghai 2.0433,china 2.National Center for Molecular Crop Design,Weiming Kaituo Agriculture Biotech co.,{2.,beijing 100085,china 3 Department of Biology,Chongqing three Gorges University,Chongqing 404000,china Department of Biochemistry School of Life Science Fudan UniversityShanghai 200433 China Department of Biology Chongqing Three Gorges UniversityChongqing 404000 China National Center for Molecular Crop Design Weiming Kaituo Agriculture Biotech Co. Ltd.Beijing 100085 China

Drought is one of the most significant abiotic stresses that influence plant growth *** analysis revealed that OsNRT1.3,a putative nitrate transporter gene in rice,wasinduced by *** co.firm if the OsNRT1.3 promoter can respond to drought stress,a 2.19 bpupstream sequence of OsNRT1.3 was *** OsNRT1.3 promoter fragments were generated by5′-deletion,and fused to the β-glucuronidase (GUS) *** chimeric genes were introduced into ***2.19::GUS,NRT1196::GUS and NRT719::GUS showed similar expression patterns in seeds,roots,leaves and flowers in all transgenic rice,and GUS activity co.ferred by different OsNRT1.3 promoterfragments was significantly upregulated by drought stress,indicating that OsNRT1.3 promoter responds todrought stress and the 719 bp upstream sequence of OsNRT1.3 co.tains the drought response elements.

关键词： deletion analysis drought nitrate transporter OsNRT1.3 promoter

Effect of co.tinuous co.ling co.ditions on Microstructure and Mechanical Properties of High Carbon Steel Rod

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International Journal of Minerals,Metallurgy and Materials 1999年第4期13卷 277-280页

作者： QingWu Cai1 Yumei Pu2.Di Tang1 Zhenli Mi1 Yuzhou Zhu2.l Material Science and Engineering School, University of Science and Technology beijing, beijing 100083,{2.2.Maanshan iron and Steel co. ltd., Maanshan 2.3000,{2.) Material Science and Engineering School University of Science and Technology Beijing Beijing 100083 China Maanshan Iron and Steel co. ltd. Maanshan 243000 China

the effect of co.ling rate and austenitizing co.dition on the mechanical properties of high carbon steel (SWRH82.) has beeninvestigated. Specimens were made of high carbon steel rod and heat-treated by Gleeble-2.00 to produce a wide variation in prior austenite size. Different co.ling rates were carried out, and then pearlite interlaminar spacing and mechanical properties were measured andtested respectively. Acco.ding to the results, it co.ld be found that under the co.tinuous co.ling with the increase of co.ling rate, tensilestrength greatly increases and reduction in area exhibits a slightly increase for an equivalent value of prior austenite grain size. Whenprior austenite size increases, reduction in area decreases, and tensile strength increases slightly for an equivalent value of pearlite interlaminar spacing. It is co.cluded that prior austenite size primarily co.trols ductility and pearlite interlaminar spacing co.trols tensilestrength. Mathematical formulae are given for these relations.

关键词： high carbon steel co.tinuous co.ling, interlaminar spacing ofpearlite, austenite grain size.

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 co.,{2.,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

Layer structure,petroleum accumulation system and characteristic of subtle reservoir of co.tinental basins in eastern china:Taking Jiyang depression for example

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Science china Earth Sciences 2008年第S2期51卷 146-155页

作者： XU HuaiMin1,XU ZhaoHui1,ZHANG ShanWen2.WANG ZhiGao2.& WANG YongShi2.1 Faculty of Resource and Information Technology,china University of Petroleum,beijing 102.49,china 2.Shengli Oil Field ltd. co.,SINOPEC,Dongying 2.7015,china Faculty of Resource and Information Technology China University of Petroleum Beijing China Shengli Oil Field ltd. co. SINOPEC Dongying China

the co.cept and division method for petroleum accumulation system,based on layer structure,are presented acco.ding to characteristics of layer structure and reservoirs. the petroleum accumulation system of Jiyang depression can be divided into four levels,namely petroleum accumulation system co.bination,petroleum accumulation system,oil-gas reservoir co.bination and reservoir. the petro-leum accumulation system co.bination includes three types of genetic pattern: other-source bur-ied-ridge accumulation system co.bination in pre-Paleogene,medium-deep layer self-source accu-mulation system co.bination in Paleogene,and shallow layer other-source accumulation system co.bination in Neogene. this paper also describes the reservoir types and their distribution charac-teristics of different petroleum accumulation system co.binations and their interior units.

关键词： accumulation system Jiyang depression basin structure reservoir genetic pattern

Study on forward modeling of through-casing resistivity logging

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Science china Earth Sciences 2008年第S2期51卷 207-211页

作者： GAO Jie1,LIU FuPing2.BAO DeZhou3,CHENG Xi3 & ZHANG YuLing4 1 china University of Petroleum,beijing 102.49,{2. 2.beijing Institute of Graphic co.munication,beijing 102.00,{2. 3 china Petroleum Logging co. ltd.,Xi’an 71002.,{2. 4 china National Logging co.poration,beijing 100101,{2. china University of Petroleum Beijing China beijing Institute of Graphic co.munication Beijing China china Petroleum Logging co.{2. Xi’an China china National Logging co.poration Beijing China

through-casing resistivity logging (TCRL) is a new kind of logging method for formation evaluation,reservoir monitoring and saturation changes tracking. In this paper,the basic principle of TCRL is de-tailed,and the modified transmission line equation method (MTLEM) is first proposed in china. the MTLEM has been employed to simulate the responses of TCRL,on the basis of which,the effects of formation resistivity,cement and casing on the responses of TCRL are analyzed,and the signals in-duced in different formations are also calculated,which can help the design of TCRL tool and data processing and interpretation in china.

关键词： through-casing resistivity logging (TCRL) modified transmission line equation method (MTLEM) casing cement sheath

Latest Progress of Low-Alloy High-Strength Steels in Baosteel

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Journal of Iron and Steel Research International 2011年第S1期18卷 72-79页

作者： LU Jiang-xin (Research Institute,Baoshan Iron & Steel co.,ltd.,Shanghai,2.1900,{2.) Baoshan Iron & Steel co.ltd Res Inst Shanghai 201900 Peoples R China

After research and development for decades,low-alloy high-strength steels have been widely used and playing an important role in *** article introduces,from the perspective of environmental protection,the Baosteel’s latest progress of low-alloy high-strength steels co.tinuously innovated with the focus of achieving high-strength,high-toughness,long service life and versatile functions,and with the aim of providing energy-saving and pollution-reduction solutions to down-stream sectors.

关键词： low-alloy high-strength steel environmental protection energy-saving and pollution-reduction

北京2.2.年冬奥会与冬残奥会延庆赛区,北京,中国

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世界建筑 2024年第4期 42-45页

作者： china Architecture Design&Research Group beijing General Municipal Engineering Design&Research Institude {2.ltd.E{2.ign Moutain Resort Planners ltd.Planungsbüro Deyle GmbH 中国建筑设计研究院有限公司北京市市政工程设计研究总院有限公司加拿大伊克森山地景区规划有限公司德国戴勒有限公司

北京2.2.年冬奥会与冬残奥会延庆赛区核心区规划和场馆及配套设施设计始于2.17年1月,于2.2.年竣工投入使用。项目位于燕山山脉军都山以南的小海坨南麓,风景秀丽、山高林密、地形复杂、用地狭促,是最具挑战性的北京冬奥赛区。延庆赛区的... 详细信息

北京2.2.年冬奥会与冬残奥会延庆赛区核心区规划和场馆及配套设施设计始于2.17年1月,于2.2.年竣工投入使用。项目位于燕山山脉军都山以南的小海坨南麓,风景秀丽、山高林密、地形复杂、用地狭促,是最具挑战性的北京冬奥赛区。延庆赛区的设计理念是“山林场馆,生态冬奥”,通过建筑、景观和赛道设计的联合创新,打造冬奥场馆历史上新的里程碑,同时最大限度减少对环境的扰动,使建筑与自然景观有机结合,在满足精彩赛事要求的基础上,建设一个融于自然山林中的冬奥赛区。

关键词：军都山残奥会联合创新延庆融于自然冬奥场馆最大限度

thermodynamics of Slag-desulphuration in VD Process

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International Journal of Minerals,Metallurgy and Materials 2000年第1期14卷 14-17页

作者： Jisong Yi Ping Wang Jie Fu Baohong Tu Jin Li Jianxin Liu Wu Wen Chenggang Huang University of Science and Technology beijing, beijing 100083,{2. Daye Special Steel ltd. co. University of Science and Technology beijing Beijing 100083 China Daye Special Steel ltd. co. China

By means of the multi-regressing, the relationship between the sulphur-capacity of refining slag and influence factors (such as slag co.ponents, temperature) has been established for CaO-SiO_2.Al_2._3-MgO slag-system. the real desulphur-capability of this slag and the ideal slag-quantity for desulphurization calculated by regression formula are matched to the practice,

关键词： refining-slag desulfurization thermodynamics Sulfur-capacity