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Chinese Journal of Chemistry 1994年第6期12卷 503-508页

作者： WEI, Ping-Rong JIA, Lu LIU, Chang-Rang FAN, Yao-TingDepartment of Chemistry, Zhengzhou university, Zhengzhou, Henan 450052, chinaGAO, SongResearch Center of Rare Earth Chemistry, Peking university, beijing 100871, china 1Department of Chemistry Zhengzhou University Zhengzhou Henan 450052 China2Research Center of Rare Earth Chemistry Peking University Beijing 100871 China

The two complexes [Ni(oxen)Cu(L)2](ClO4)***2O (L=2,2'-bipyridyl(bpy), 1,10-phenanthroline(phen)) have been synthesized, where oxen is N,N'-bis(2-aminoethyl)oxamido di-anion. The crystal structure of [Ni(oxen)Cu(bpy)2](ClO4)***3OH has been determined by X-ray diffraction method. The crystal is triclinic system, space group P1 with a=12.179(1),b=12.298(2), c=11.476(2) A, a=97.57(1), B=97.52(1), 7=80.29(2), V=1669.04(67) A3, Z=2, Dcalcd=1.667 g/cm3. The structure has been refined to final R of 0.076 and Rw of 0.080, respectively. The complexes have an extended oxamido-bridged structure and consist of Ni(Ⅱ) ion in a square planar environment and Cu(Ⅱ) ion in a distorted octahedral environment.

关键词： N,N'-bis(2-aminoethyl)oxamidonickel(II) heterobinuclear complexes crystal structure.

The changes of community components and their horizontal patterns caused by highway construction in the Longitudinal Range-Gorge Region

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Science Bulletin 2007年第S2期 213-224页

作者： LIU Jie CUI BaoShan DONG ShiKui WANG Juan ZHAO ShuQing school of Environment,beijing Normal university,beijing 100875,china

Taking Dabeo(from Dali City to Baoshan City)and Sixiao(from Simeo City to Xiaomengyang Town) highways In the Longitudinal Range-Gorge Region as examples,the changes of community compo- nents and their horizontal patterns caused by highway construction were discussed in this article with some mathematic methods,such as contrast analysis,difference analysis and so *** indicate: 1)Under the disturbances of highway construction,the predominant species and sub-predominant species’ quantities of arbor and shrub plants on roadsides would decrease to some extent,that of herbaceous plants would increase a lot,and some invading species would appear and distribute.2) Influenced by highway construction,the distributions of predominant species and sub-predominant species on roadsides would change from uniform or random pattern to aggregate pattern,and their aggregate degrees and diffusivities would increase obviously.3)The average coverage degrees and heights of Ageratina adenophora and Chromolaena odorata near roads are higher than that far away from roads,but the frequencies of the 2 species have no obvious change on roadsides within 200 m.4) The positions and landforms of road sections are also important factors influencing community com- ponents,the calculated result shows that the influencing Intensities on community components caused by Dabeo highway are higher than that caused by Sixiao highway,and the compared result of the in- fluencing intensities between the 2 different landforms meet:mountainside>mountaintop.

关键词： community component horizontal pattern change highway construction Longitudinal Range-Gorge Region

Calcium channel blocking activity of calycosin,a major active component of Astragali Radix,on rat aorta

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Acta Pharmacologica Sinica 2006年第8期27卷 1007-1012页

作者： Xiu-li WU~2 Yin-ye WANG~(2,4) Jun CHENG~3 Yu-ying ZHAO~3 ~2Department of Molecular and Cellular Pharmacology:~3Department of Natural Medicinal Chemistry,school of Pharmaceutical Sciences,Peking university,beijing 100083,china DepartmentofMolecularandCellularPharmacology DepartmentofNaturalMedicinalChemistry SchoolofPharmaceuticalSciencesPekingUniversityBeijing100083China

Aim:To investigate the vasoactivity of calycosin,a major active component ofAstragali ***:Experiments were performed on isolated rat thoracicaortic rings pre-contracted with phenylephrine(PHE)or ***:Calycosinproduced a concentration-dependent relaxation on the tissue pre-contractedusing PHE with 4.46±0.13 of pD2and 95.85%±2.67% of Emax;or using KCl with4.27±0.05 of pD2and 99.06%±2.15% of Emax,and displaced downwards the con-centration-response curves of aortic rings to PHE or *** relaxant effect ofcalycosin on denuded endothelium aortic rings was the same as on intact endot-helium aortic rings,and its vasorelaxant effect was not influenced by L-NAME *** Ca2+-free solution,calycosin(30 μmol/L)did not have an effecton PHE (1×10-6mol/L)-induced aortic ring *** effects of calycosinand nifedipine where somewhat different;calycosin decreased aortic ring con-tractions induced by the two agonists,but nifedipine displayed a more potentinhibitory effect on KCl-induced contractions than on PHE-induced contractions,and the vascular relaxing effects of calycosin and nifidipine were additive on PHE-induced contraction but not ***:Calycosin is a *** action is endothelium-independent and is unrelated to intracellular Ca2+*** is a noncompetitive Ca2+channel *** effect of calycosin on Ca2+chan-nel blockade may be different from that of *** study demon-strated a novel pharmacological activity of calycosin,and supplied a theoreticfoundation for Astragali Radix application.

关键词： catycosin rat aorta vasodilation calcium channel

Convolution Algorithm for the State Probability of Dynamic Networks

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The Journal of china Universities of Posts and Telecommunications 1994年第1期1卷 41-44页

作者： Lu Tingjie (Department of Management Engineering, beijing university of Posts and Telecommunications,beijing 100088,P. R. china)

In this paper,a convolution algorithm for the state probability of DNHR (Dynamic NonHierarchical Routing) networks with access control is presented. As its application, theoretical perfor- mance characteristics that show time congestion,call congestion and traffic congestion for call attempts between any pair of switching centers are determined.

关键词： Routing/trunck group Complex loss system

A new alternating copolymerized derivative as a cold flow improver for diesel fuel

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Petroleum Science 2009年第1期6卷 82-85页

作者： ZHANG Haikuan LIU Hongyan WANG Shujun State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing 102249 China china National Oil ＆ Gas Exploration and Development Corporation China National Petroleum Corporation Beijing 100034 China

Synthesis of a cold flow improver （MAVA-a） for diesel fuel and its effect on solidifying point （SP） and cold filter plugging point （CFPP） of diesel fuels were investigated, The cold flow improver was prepared by using maleic anhydride （MA） and vinyl acetate （VA） as raw materials, toluene as solvent, dibenzoyl peroxide （BPO） as initiator, through alternating polymerization under nitrogen to obtain a binary-polymer and then through aminolysis by using a higher carbon amine as aminating agent at a temperature of 80 ℃. A cold flow improver was designed and prepared for No. 0 diesel fuel from Zhang Jia-Gang Petrochemical Company according to the contents of n-paraffin and its carbon number distribution in the No. 0 diesel fuel. It was also used together with two kinds of ethene-vinyl acetate copolymer improvers （EVA） separately. The test result showed that the CFPP of the No. 0 diesel fuel could be lowered by 3-5 ℃ when the improver MAVA-a was used. The CFPP was lowered by 8℃ when the improver MAVA-a was used together with EVA-2.

关键词： Cold flow improver solidifying point cold filter plugging point copolymer amination

Effect of Topiramate on Serum Proteome of Mice Bearing Lewis Lung Carcinoma

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Effect of Topiramate on Serum Proteome of Mice Bearing Lewis...

用原位x射线小角散射研究块体非晶合金Zr_(55)Cu_(30)Al_(10)Ni_5的结构弛豫

全国第十一届生化与分子药理学学术会议

作者： Yan Pan Xue-Jun Li Department of Pharmacology,school of Basic Medical Sciences and State Key Laboratory of Natural and Biomimetic Drugs,Peking university,beijing,100191,china

Topiramate has been used in epilepsy patients with brain tumor *** our present research we used the animal model of Lewis lung carcinoma metastasis in C57BL/6 mice to confirm the anti-tumor and anti-metastasis activity of *** by using two-dimensional electrophoresis(2-DE) combined with matrix assisted laser desorption

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物理学报 2003年第9期52卷 2219-2222页

作者：柳义柳林王俊赵辉荣利霞董宝中中国原子能科学研究院北京102413 华中科技大学材料学院武汉430074 中国科学院高能物理研究所同步辐射实验室北京100039

应用同步辐射x射线小角散射法在原位对块体非晶合金Zr55Cu30 Al1 0 Ni5在等温退火过程中的微结构变化进行研究 .实验表明 :在等温退火过程中电子密度涨落反映了晶化之前的结构弛豫过程 ;在一定的退火温度下、随退火时间的增加 ,拓扑短... 详细信息

应用同步辐射x射线小角散射法在原位对块体非晶合金Zr55Cu30 Al1 0 Ni5在等温退火过程中的微结构变化进行研究 .实验表明 :在等温退火过程中电子密度涨落反映了晶化之前的结构弛豫过程 ;在一定的退火温度下、随退火时间的增加 ,拓扑短程序弛豫与化学短程序弛豫之间存在一个电子密度均匀化的过程 ;导致这两种弛豫过程转变的退火时间与退火温度有关 ,温度越高。

关键词：原位x射线小角散射块体非晶合金等温退火结构弛豫 Zr55Cu30Al10Ni5合金电子密度涨落

The CAD System Development for Power Plants Pipe-Prefabrication

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武汉理工大学学报 2006年第S2期28卷 718-723页

作者： RUI Xiaoming~1 MA Zhiyong~2 1.Laboratory of Condition Monitoring and Control for Power Plant Equipment, 2.school of Energyand Power Engineering,North china Electric Power university,beijing 102206,china Laboratory of Condition Monitoring and Control for Power Plant Equipment school of Energyand Power Engineering North China Electric Power UniversityBeijing 102206China

An intelligent design software system for the power station pipe-prefabrication (PPDS) has been developed in the paper,which is taking pipe material database as core and developed on the platform of AutoCAD and Borland C++. Whereas design and construction of power plants in china belong to different deportments,the input and recognition problem of pipeline system disposition chart must be solved firstly for the prefabrication *** on AI technology,the model fast building subsystem (MFBS) was established for entering the 3-D pipeline graph data,so that the problems of reconstruction of pipeline digital model and computer identification of original 2-D design data can be solved. The optimization design scheme in the pipe-prefabrication process has been studied and also the corresponding algorithm put *** technique and system mentioned can effectively raise the pipe-prefabrication design quality and efficiency in the con- struction of large scale power plants,reduce the period of design and the waste of raw *** has still offered the functions such as the construction design for pipeline prefabricated process,the detailing drawing for manufacturing pipe section and automatic generating the technical files for the completed project.

关键词： computer aided design pipe-prefabrication design power plants building engineering

CORRELATION INVESTIGATION BETWEEN CONTACT APPROACH SPEED OF HANDHELD METAL ROD AND DISCHARGE PARAMETERS FROM CHARGED HUMAN BODY

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Journal of Electronics(china) 2008年第3期25卷 384-388页

作者： Ruan Fangming Fujiwara Osamu Gao Yougang Institute of Electromagnetic Compatibility Beijing University of Post ＆ Telecommunications Beijing 100876 China school of Physics ＆ Chemistry Guizhou NormaI University Guiyang 550001 China Graduate school of Engineering Nagoya Institute of Technology Gokiso-cho Showa-ku Nagoya 466-8555 Japan

Characteristic measurement of contact discharge currents are made through a hand-held metal rod from charged human body. Correlation coefficients are obtained, through Statistic Package for Social Science (SPSS), for various charge voltages, which is based on the effect test of electrode contact approach speeds on discharge current parameters of current peaks, maximum rising slope and spark lengths. Discharge parameters at charge voltage 300V are independent on approach speed. For charge voltages equal to and higher than 500V, the contact approach speed has strong positive cor- relation with discharge parameters of the peak current and the maximum rising slope, whereas has strong negative correlation with the spark length.

关键词： ElectroStatic Discharge (ESD) Metal rod Discharge current Contact approach speed Statistical correlation

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