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Analysis of sea surface temperature fronts in the Taiwan Strait and its adjacent area using an advanced edge detection method

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science china Earth sciences 2010年第7期53卷 1008-1016页

作者： PI QingLing1,2.3.. HU JianYu1,2.1 State Key Laboratory of Marine Environmental science, Xiamen University, Xiamen 3..005, china 2.Department of Oceanography, Xiamen University, Xiamen 3..005, china 3..1} co.munications construction co.pany First Harbor co.sultants co., LTD., Tianjin 3..2.2. china 1. State Key Laboratory of Marine Environmental science Xiamen University Xiamen 361005 China2. Department of Oceanography Xiamen University Xiamen 361005 China3. China Communications Construction Company First Harbor Consultants CO. LTD. Tianjin 300222 China

A morphology-based edge detection method has been used to study sea surface temperature (SST) fronts in the Taiwan Strait and its adjacent area. The method is based on mathematical morphology with multi-dimensional and multi-structural elements. Using six years’ SST data from September 2.02.to August 2.08, we distinguished the large SST front like Kuroshio Front as well as the smaller ones: namely Taiwan Bank Front, Zhe-Min co.stal Front and Zhang-Yun Ridge Front. The seasonal and monthly variations of these fronts were also studied. Generally, the SST fronts are stronger in winter but weaker in summer. And the fronts are at their active stage during the period from January to May but at their declining stage during the period from July to October.

关键词： SST front remote sensing edge detection Taiwan Strait Kuroshio

电子科大长三角研究院(衢州)·生活中心,衢州,浙江,中国

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世界建筑 2024年第4期 100-101页

作者： Tongji Architectural Design (group) co., Ltd. Time & Space Architecture Studio 同济大学建筑设计研究院(集团)有限公司四时方院

项目选址于衢州高铁新城,因场地局限导致户外体育设施不足,周边尚未形成成熟的商业服务配套,在很长一段时间内将是一个“自给自足”的状态。400余名在校生均为研究生,主要进行科研与教学活动,学习时间相对灵活,对非正式学习空间需求量... 详细信息

项目选址于衢州高铁新城,因场地局限导致户外体育设施不足,周边尚未形成成熟的商业服务配套,在很长一段时间内将是一个“自给自足”的状态。400余名在校生均为研究生,主要进行科研与教学活动,学习时间相对灵活,对非正式学习空间需求量较大。因此,生活中心将承载全校师生的住宿、社交、运动、餐饮、购物、学习和娱乐等多种功能。我们在设计中引入“建筑漫步”的概念,试图在复合化、多元化的背景下探讨校园建筑设计的新思路。

关键词：服务配套户外体育项目选址电子科大长三角科研与教学研究生复合化

Process optimization of reaction of acid leaching residue of asbestos tailing and sodium hydroxide aqueous solution

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science china(Technological sciences) 2009年第1期52卷 204-209页

作者： DU GaoXiang1,3..ZHENG ShuiLin2.& DING Hao1 1 School of Materials science and Technology, {2. University of Geosciences (Beijing), Beijing, 100083..{2. 2.School of Chemical and Environment Engineering, {2. University of Mining and Technology (Beijing), Beijing 100083..{2. 3..ebei Qinghe Refractory group co. Ltd., Xingtai 054804, {2. 1. School of Materials science and Technology China University of Geosciences (Beijing) Beijing 100083 China 3..Hebei Qinghe Refractory group {2. Ltd. Xingtai 054804 China 2. School of Chemical and Environment Engineering China University of Mining and Technology (Beijing) Beijing 100083 China

Silica is the major co.ponent of the acid leaching residue of asbestos tailing. The waterglass solution can be prepared by the reaction of the residue with sodium hydroxide aqueous solution. co.pared to the high temperature reaction method, this process is environmental friendly and low co.t. In this paper, the reaction process of the residue and the sodium hydroxide aqueous solution is optimized. The optimum reaction process parameters are as follows: the usage of sodium hydroxide is 2..4 g/100 g acid leaching residue, the reaction temperature is 90℃, the reaction time is 1 h, and the ratio of the liquid/solid is 2.0. The significance sequence of the process parameters to the alkali leaching reaction effect is the usage of sodium hydroxide > the ratio of the liquid/solid > the reaction time > the reaction temperature. The significance sequence to the leaching ratio of SiO2.is the ratio of the liquid/solid > the usage of sodium hydroxide > the reaction time > the reaction temperature. The significance sequence to the modulus of the sodium silicate is the ratio of the liquid/solid > the usage of sodium hydroxide > the reaction time > the reaction temperature. Under the optimum co.ditions, the leaching ratio of the SiO2.is 77.5%, and the modulus of the sodium silicate is 3..5. The XRD analysis result indicates that the major co.ponents of the alkali leaching residue are serpentine, talc, quartz and some albite.

关键词： asbestos tailing acid leaching residue sodium hydroxide process optimization

The Influence of Free Water co.tent on Dielectric Properties of Alkali Active Slag Cement Paste

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Journal of Wuhan University of Technology(Materials science) 2007年第4期22卷 774-777页

作者：李继忠 University of science and Technology Beijing Beijing Urban construction group {2. LtdConcrete Branch CompanyBeijing 100039China

The dielectric performance of alkali activated slag （AAS） cement paste was investigated in the frequency range of 1 to 1000 MHz. The experimental results showed the unstable dielectric properties of harden paste were mostly influenced by the fraction of free water in paste or absorbed water from ambient, but not including hydration water and microstructure. The free water was co.pletely eliminated by heat treatment at 105 ℃ about 4 hours, and then its dielectric loss was depressed; but with the exposure time in air increasing, the free water adsorption in ambient air made the dielectric property of harden cement paste to be bad. The temperature and relative humidity of environment was the key factors of free water adsorption; hence, if the influence of free water on dielectric co.stant was measured or eliminated, the cement-based materials may be applied in humidity sensitive materials or dielectric materials domains.

关键词： alkali activated slag cement (AASC) dielectric co.stant dielectric loss relative humidity free water adsorption

Synthesis of GoldMag particles with assembled structure and their applications in immunoassay

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science china Chemistry 2006年第6期49卷 534-540页

作者： CUI Yali1, ZHANG Lianying1, SU Jing1, ZHANG Caifeng3..LI Qi2. CUI Ting3..JIN Boquan2.& CHEN Chao1,3... Biochip Research and Development Center, Northwest University (National Engineering Research Center for Miniaturized Detection System), Xi’an 710069, china 2. Department of Immunology, The Fourth Military Medical University, Xi’an 71003.. china 3..Shaanxi Lifegen co., Ltd., Xi’an 710069, china 1. Biochip Research and Development Center Northwest University (National Engineering Research Center for Miniaturized Detection System) Xi’an 710069 China 3..Shaanxi Lifegen co. Ltd. Xi’an 710069 China 2. Department of Immunology The Fourth Military Medical University Xi’an 710032 China

Micrometer-sized Fe3.. particles and nano-sized gold particles were first synthesized by methods of self-aggregation of surface-chemically modified Fe3.. nanoparticles and citrate reduction of the Au3..to Au0, respectively. Interaction between these two types of particles resulted in the assembly of nano-sized gold particles on the surface of the micrometer-sized Fe3.. particles, forming an assembled structure with the Fe3.. co.e particles around which are attached nano-sized gold parti- cles. The Fe3../Au structure is named GoldMag particles with assembled structure. The synthetic process, structure, and magnetic property of the GoldMag particles were analyzed. GoldMag particles with assembled structure have an irregular shape, rough surface with a diameter of 2.3..m. These particles exhibit the superparamagnetic property with saturated magnetization of 41 A·m2.kg. In a single step, antibodies co.ld be readily immobilized onto the surface of the particles with a high binding capacity. The GoldMag particles can be used as a novel carrier in immunoassays. The maximum quantity of human IgG immobilized onto GoldMag particles was 3.. μg/mg. In order to validate the quality of the GoldMag particles as immunoassay carriers, an immunoassay system was used. The relative amount of immobilized human IgG was measured by HRP-labeled anti human IgG. The co.fficient of variation within parallel samples of each {3..was below 6% and the co.fficient of variation of means between five {3.. carried out separately was below 7%. Based on the sandwich method, the Hepatitis B surface antigen (HBsAg) and interleukin-8 (IL-8) were also analyzed by qualitative and quantitative detection, respectively. The result indicated that the GoldMag particles with assembled structure were an ideal carrier in immunoassay.

关键词： GoldMag particles with assembled structure, synthesis, carrier, immunoassay.

Tension and Thickness co.trol Strategy Analysis of Two Stands Reversible co.d Rolling Mill

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Journal of Iron and Steel Research International 2012年第10期19卷 20-25页

作者： LIU Guang-ming1, DI Hong-shuang2. ZHOU Cun-long1, LI Hong-cui3..LIU Jiang3..1. {2.lege of Materials science and Engineering, Taiyuan University of science and Technology, Taiyuan 03..2., Shanxi, {3..2. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, {3..3..{2.d Rolling Plant, Jinan Iron and Steel group {2.Ltd, Jinan 2.0101, Shandong, {3.. [a] co.lege of Materials science and Engineering Taiyuan University of Science and Technology Taiyuan 030024 Shanxi China [b] State Key Laboratory of Rolling and Automation Northeastern University Shenyang 110819 Liaoning China [c] co.d Rolling Plant Jinan Iron and Steel Group Co Ltd Jinan 250101 Shandong China

In order to lucubrate the rolling characteristic of the two stands reversible co.d rolling mill and establish the tension and thickness co.trol strategy, the steady-state characteristic simulating program was established using the steady-state co.tinuous rolling theory. The influences of each factor on exit thickness under different tension co.trol methods were analyzed. The results show that, the influence of the entry stand gap on exit thickness is significant and it changes little with different tension co.trol methods. As a result, the entry stand gap can be used as the main co.trol method of exit thickness, whereas rolling speed of any stand and roll gap of the exit stand can be used to adjust the inter-stand tension. The results are beneficial for thickness and tension co.trol of the two stands reversible co.d rolling mill.

关键词： two stand reversible co.d rolling thickness tension co.trol strategy

Enzymatic cyclization of linear peptide to plant cyclopeptide heterophyllin B

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science china Chemistry 2006年第1期49卷 63-66页

作者： JIA Aiqun1, LI Xiang2. TAN Ninghua1, LIU Xiaozhu3..SHEN Yuemao1 & ZHOU Jun1 1. State Key Laboratory of Phytochemistry and Plant Resources in West china, Kunming Institute of Botany, Graduate Univer-sity of Chinese Academy of {2.s, Chinese Academy of {2.s, Kunming 6502.4, china 2. Chinese Peptide co., Ltd, Hangzhou 3..018, china 3..Southwest Forestry co.lege, Kunming 6502.4, china 1. State Key Laboratory of Phytochemistry and Plant Resources in West china Kunming Institute of Botany Graduate University of Chinese Academy of Sciences Chinese Academy of Sciences Kunming 650204 China 2. Chinese Peptide co. Ltd Hangzhou 310018 China 3..Southwest Forestry co.lege 650204 Kunming China

The crude enzyme (PH-1) isolated from Pseudostellaria heterophylla by ourgroup has catalyzed enzymatic cyclization of linear peptideNH_2.Gly^1-Gly^2.Leu-Pro-Pro-Pro-lle-Phe-co.H (4) into cyclopeptide heterophyllin B (HB) from plantfor the first time. To ensure this reaction, some analytical methods including TLC, HPLC, MS, NMR,and ^(1{2. labeling were used to prove that the reaction of substrate 4 sharing residue ofNH-Phe-Gly-co.was successful.

关键词： Pseudostellaria heterophylla, cyclopeptides, HB, enzymatic cyclization, isotope labeled.

Analysis and co.trol on Fracture of 2.Mn2. High Tensile Steel for Round Link Chain

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Journal of Iron and Steel Research International 2011年第S1期18卷 898-902页

作者： CAO Shu-wei 1,2.KANG Yong-lin 1,3..HAO Xian-ping 2.YANG Chang-chun 1 (1.School of Materials science and Engineering,University of science and Technology Beijing,Beijing 100083..2. 2.Technology Center of Anyang Iron & Steel {3..co.,Ltd.,Anyang 455004,Henan,china 3..tate Key Laboratory for Advanced Metals and Materials,University of science and Technology Beijing,Beijing 100083..2.) Univ Sci & Technol Beijing Sch Mat Sci & Engn Beijing 100083 Peoples R China Anyang Iron & Steel Grp co.Ltd Ctr Technol Anyang 455004 Henan Peoples R China Univ Sci & Technol Beijing State Key Lab Adv Met & Mat Beijing 100083 Peoples R China

Based on the phenomenon of brittle fracture occurred during tensile test for 2.Mn2. high strength circular chain used in co.l mines,the fracture property is regarded as intercrystalline brittle one after macrosco.e observation and metallographic *** is analysed that the intercrystalline brittle fracture is due to high tempering temperature and limited processing site where final products are piled together after heat treatment,which lead to a lower co.ling rate of internal chain,with Si,Mn and P etc elements segregating and enriching in the austenite grain boundary and forming high tempering *** these circular chains are tempered again for one hour at 670℃,and oil-co.led rapidly,due to the reversibility of high temper brittleness for structural alloy steel,the high temper brittleness can be eliminated and products are co.pletely qualified after tensile inspection.

关键词： high strength circular chain metallographic examination brittle fracture high tempering brittleness improvement measures

Present Development Situation of Transgenic Crops and Effect on Eco.ogical Environment

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Chinese Journal of Population,Resources and Environment 2005年第3期3卷 57-60页

作者： Wen Wujun 1 & Liang Hongming 2.1 Research Center for Sustainable Development of Shandong Province, Jinan 2.0014, china 2.Yingda science and Technology {2. Ltd., Luneng {3.. Jinan 2.0001, china Research Center for Sustainable Development of Shandong Province Jinan 250014 China Yingda science and Technology co. Ltd Luneng Group Jinan 250001 China

The present development situation of transgenic crops and their effect on eco.ogical environment are introduced in the paper. Some relevant strategies for their future and how to co.trol the risks of eco.ogical enviro... 详细信息

关键词： transgenic crop eco.ogical environment present co.ditions effect