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北京城市副中心0701街区D#地块住房百年住宅示范项目

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建筑实践 2024年第3期 96-103页

作者： china Institute of Building Standard Design & Research Co., ltd. 中国建筑标准设计研究院有限公司

北京城市副中心是规划建设疏解北京非首都功能、推动京津冀协同发展的历史性工程。项目对于落实首都城市战略定位、建设国际—流的和谐宜居之都,对于建设以首都为核心的世界级城市群,都具有十分重大而深远的意义。项目规划设计打破传统...

北京城市副中心是规划建设疏解北京非首都功能、推动京津冀协同发展的历史性工程。项目对于落实首都城市战略定位、建设国际—流的和谐宜居之都,对于建设以首都为核心的世界级城市群,都具有十分重大而深远的意义。项目规划设计打破传统封闭社区规划模式,以小街区密路网、开放式社区的设计骨架,用半围合式住宅,院落内外高差处理等设计手法打造和谐、有序而具有活力的多元示范住区。

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Microwave-assisted reaction of peptide formation by amino acid with phosphate:Exploration of the most possible channels for the origin of life

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Science china Chemistry 2006年第4期49卷 351-356页

作者： HU Rong1, TIAN Jinping2.& YIN Yingwu2.3 1. College of Chemistry & Environment Protection Engineering, Southwest University for Nationalities, Chengdu 610041, china 2. TH-UNIS Insight Co., ltd., {2. 100085, china 3. Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, {2. 100084, china 1. College of Chemistry & Environment Protection Engineering Southwest University for Nationalities Chengdu 610041 China 2. TH-UNIS Insight Co. Ltd. Beijing 100085 China 3. Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology Ministry of Education Department of Chemistry Tsinghua University Beijing 100084 China

Microwave-assisted reaction of peptide formation by amino acids with phosphate was studied. The results showed that the products were a mixture of peptides containing dipeptide, oc- tapeptides and cyclic peptides, which could be obtained in a short time. Polyphosphate was also produced synchronously by the intermolecular condensation of phosphate. The polymerization de- gree reached 99% (pyrophosphate 64%, trimetaphosphate 35%) after 2.h at 2.0℃ under microwave irradiation. The intermediates of the mixed anhydrides formed by the intermolecular condensation of phosphates and glycin were determined by ESI-MS. Peptides were also produced by the reaction of amino acids with trimetaphosphate in aqueous solution. The conversion degree of valine reached 46.5% even at room temperature. The cyclic process of peptide formation and phosphate polymeri- zation, regeneration and utilization in amino acids-phosphate system under microwave irradiation was detected and proved. Peptides could be continually formed only by inputting energy into this system. The above recycle may be the most possible process for primitive peptide formation in the origin of life.

关键词： microwave, phosphate, amino acid, peptide, origin of life.

Force Parameter Model of 3-Roll Mills for Continuous Cold 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 coefficients were determined by static analysis of the data. The torque in continuous rollingwas measured, and the characteristics and efficiency of 3-roll mills are investigated.

关键词： 3-roll mill force mathematical model cold rolling wire

Investigation on Variation of Inclusions and Total Oxygen in IF Steel After RH Deoxidization

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Journal of Iron and Steel Research International 2011年第S2期18卷 347-351页

作者： SHU Hong-fu1,2. LIU Liu1, LIU Xue-hua2. ZHANG Xiao-feng2.(1.Central Iron and Steel Research Institute, beijing 100081, china 2. Technology Centre of Maanshan Iron and Steel Co {2. Maanshan 2.3000, Anhui, china) Cent Iron & Steel Res Inst Beijing 100081 Peoples R China Maanshan Iron & Steel Co ltd Ctr Technol Maanshan 243000 Anhui Peoples R China

The variational regulation of inclusions and total oxygen in the IF Molten Steel during the RH refining process after deoxidization was studied. The results show that the relationship between total oxygen content and time is in accord with the following equation, T.O=2.1.2.e-1.53t+2..49, R2.*** inclusion analysis investigation during RH pure circulation process indicates that the main inclusion of the IF molten steel after 2.minutes from the beginning of deoxidization is cluster inclusions of pure Al2.3 system. After 6 minutes from the aluminum deoxidization, the quantity of inclusion decreases and the inclusion style changes into block inclusions of Al2.3 system with the size of 5μm. In the other hand, some inclusions are of Al2.3-MgO. Complex inclusions of Al2.3-TiOx with the size of below 5μm, and the single particle or cluster complex inclusions with the typical square shape of Al2.3-TiN system are found after 3 minutes from titanium-ferrous alloy added. Then, the content of titanium of complex inclusions of Al2.3-TiOx decreases and the aluminum content rises along with the RH pure circulation time process. That means the inclusions of Al2.3-TiOx is not steady, and it trends to transfer into Al2.3.

关键词： IF steel inclusion RH refining

Layer structure,petroleum accumulation system and characteristic of subtle reservoir of continental 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 1. Faculty of Resource and Information Technology China University of Petroleum Beijing 102249 China 2. Shengli Oil Field ltd. Co. SINOPEC Dongying 257015 China

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

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

High frequency complex permeability of flake-shaped Fe_(74)Cr_2.o_2.n_2._(10)Si_4B_4C_2.particle composite material

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Science china(Technological Sciences) 2010年第4期53卷 1056-1059页

作者： LIU KaiHuang1,LIU TianCheng1,2.LI JianLiang1,2.ZHANG Liang1,2.ZHANG HongHao1,2.LI DeRen1,2.LU ZhiChao1,2.& ZHOU ShaoXiong1,2.1 china Iron and Steel Research Institute,beijing 100081,{2. 2.Advanced Technology and Materials Co.,ltd.,beijing 100081,{2. 1. china Iron and Steel Research Institute Beijing 100081 China2. Advanced Technology and Materials Co. Ltd. Beijing 100081 China

A composite consisting of flake-shaped Fe74Cr2.o2.n2.10Si4B4C2.particles was *** flake-shaped particles included in the composite were prepared by planetary ball *** complex permeability of the composite material was measured at frequency range from 10 MHz to 8.5 *** permeability of the composite containing flake-shaped particles was much higher than that of the spherical *** permeability of particles was improved by means of *** contrast to the random-spatial-distributed flake-shaped particle composites,the oriented-distributed ones had a higher effective permeability.A model was proposed considering the orientation ratio,and our calculation agreed well with the experimental data.

关键词： complex permeability composite materials flake-shaped electromagnetic wave absorber

Development of 340MPa Grade Galvanized Automotive HSLA Sheet of Shougang

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Journal of Iron and Steel Research International 2011年第S1期18卷 990-993页

作者： QI Chun-yu 1,LIN Li-bin 2.ZHOU Jian 2.LIU Guang-ming 2.YIN Xian-dong 1 (1.beijing Shougang Cold Rolling Company,ltd.,beijing 101304,china 2.Shougang Research Institute of Technology,beijing 100041,china) beijing Shougang Cold Rolling Co ltd Beijing 101304 Peoples R China Shougang Res Inst Technol Beijing 100041 Peoples R China

In the paper,development of 340MPa galvanized grade HSLA sheet of Shougang is *** effects of annealing parameters on the precipitates,microstructures and mechanical properties were *** to the experiment,it was indicated that the fine microstructures and disperse carbide of Nb caused high strength of the *** now,the product has been used to the reinforced inner panel.

关键词： HSLA microstructure property precipitation galvanizing

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Science china Earth Sciences 2004年第10期47卷 886-895页

作者： TANG Liangjie1,2. JIA Chengzao3, PI Xuejun4, CHEN Suping1,2. WANG Zhiyu5, XIE Huiwen4 1. Key Laboratory for Hydrocarbon Accumulation of Education Ministry, beijing 102.49, china 2. Basin & Reservoir Research Center, University of Petroleum, beijing 102.49, china 3. Petrochina Company Limited, beijing 100011, china 4. Tarim Oilfield Company, Petrochina Company ltd., Kurle 841000, china 5. Department of Geology, University of Petroleum, beijing 102.49, china 1. Key Laboratory for Hydrocarbon Accumulation of Education Ministry 102249 Beijing China 2. Basin & Reservoir Research Center University of Petroleum 102249 Beijing China 3. Petrochina Company Limited 100011 Beijing China 4. Tarim Oilfield Company PetroChina Company Ltd. 841000 Kurle China 5. Department of Geology University of Petroleum 102249 Beijing China

The salt beds of Lower Tertiary developed in the mid-segment of Kuqa foreland fold belt, northern Tarim basin. They considerably controlled structural deformation of the belt. Ac- cording to the field observation, seismic profile interpretation and drilling data, three different structural styles of supra-salt, intra-salt and sub-salt occurred in the Kuqa foreland fold belt. Su- pra-salt structural styles mainly include thrust faults and fault-related sags. Intra-slat structural styles essentially are salt-pillows, intra-salt faults and folds, and salt weld structures. Sub-salt structural styles mainly consist of imbricated thrust faults, duplex structures, pop-up and fault-related folds. It is indicated that great differences exist among supra-salt, intra-salt and sub-salt structures of Kuqa foreland fold belt. The salt-related structures were formed in the same structural stress field. The dynamic mechanism of the salt-related structures is mainly associated with gravitation, compression and plastic flow of salt beds.

关键词： salt-related structural style, supra-salt structure, intra-salt structure, sub-salt structure, Kuga foreland fold belt.

Seasonal influence on the development of parthenotes and cloned embryos in pigs

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Progress in Natural Science:Materials International 2007年第10期17卷 1172-1176页

作者： Zhang Kun1, Zhang Yunhai3,4, Pan Dengke5, Ma Yufang1, Wei Hengxi1, Zhang Jian6, Li Xuyang7, Wang Shaohua1, Li Yan2. Dai Yunping1,2.and Li Ning1(1. State Key Laboratory for Agrobiotechnology, College of Biological Science, china Agricultural University, {2. 100094, china 2. jipulin biotech ltd., {2. 100094, china 3. Danish Institute of Agricultural Sciences, 8830 Tjele, Denmark 4. College of Animal Science and Technology, Anhui Agricultural University, Hefei 2.0036, china 5. Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, {2. 100094, china 6. Animal Clinical Hospital, china Agricultural University, {2. 100094, china 7. Hebei Minghui Group of Pigs Breeding, Sanhe 0652.0, china) State Key Laboratory for Agrobiotechnology College of Biological Science China Agricultural University Beijing 100094 China jipulin biotech {2. Beijing 100094 China Danish Institute of Agricultural Sciences 8830 Tjele Denmark College of Animal Science and Technology Anhui Agricultural University Hefei 230036 China Institute of Animal Sciences Chinese Academy of Agricultural Sciences Beijing 100094 China Animal Clinical Hospital China Agricultural University Beijing 100094 China 7. Hebei Minghui Group of Pigs Breeding Sanhe 065200 China

Seasonal influence on the developmental ability of porcine embryos was studied by comparisons of the number of cumulus-oocytes-complexes (COCs) per ovary pair and meiotic maturation ability of oocytes in different seasons; and by the observations on developmental competence of the parthenogenetic oocytes and cloned embryos collected from different seasons. We found that the number of COCs per ovary pairs was significantly higher in spring compared to the other seasons (P<0.05). However, no significant difference was found in the rate of oocytes progressing to MⅡ in four seasons (P<0.05). In addition, the rate of blastocyst formation of parthenogenetic embryos in summer was obviously declined compared to the other seasons (P<0.05), and an increased blastocyst rate of cloned porcine embryos was found in spring compared to autumn and winter (P<0.05). The results suggest that there should be a seasonal influence on the developmental competence of porcine embryos.

关键词： pig cloned parthenogenetic season