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甘肃省化学会第二十七届年会暨第九届甘肃省中学化学教学经验交流会

作者： Jing-Kun Yuan Ying Bai Hui-Lu Wu (School of Chemical and Biological Engineering,lanzhou jiaotong university,lanzhou, 730070)

Due to the benzimidazoles and their derivaties have a wide variety of significant agents exhibiting favorable biological activities in the field of drugs and pharmaceuticals such as antitumor,antiviral,anticancer,antimicrobial,antiprotozoal,and anti-inflammatory or analgesic activities,numerous studies have been carried out in the past *** the reports about Ag complex with benzimidazoles and their derivaties are scanty,only several complexes are reported till date.

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A Schiff base ligand N-(2-hydroxylacetophenone)-3-oxapentane-1,5-diamine and its Cu(Ⅱ) coordination polymer:Crystal structure and Antioxidation

A Schiff base ligand N-(2-hydroxylacetophenone)-3-oxapentane...

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“国际化学年在中国”——2011年中西部地区无机化学化工学术研讨会

作者： Fei Jia,YingLong Zhan,Juanhui Shao,HuiLu Wu (School of Chemical and Biological Engineering,lanzhou jiaotong university,lanzhou 730070)

A Schiff base ligand N-(2-hydroxylacetophenone)-3-oxapentane-1,5-diamine(HL) and its Cu coordination polymer,[Cu(L)(NO)],have been synthesized and characterized by physic-chemical and spectroscopic ***[Cu(L)(NO)] is revealed as a 1:1(Cu:L) polymer,in which copper ion is six-coordinated with the coordination surround of distorted octahedral *** polymer has a 1D infinite chain structure in which copper ions are bridged by single *** assay in vitro shows the Cu(Ⅱ) complex possesses significant antioxidant activities.

关键词： N-(2-hydroxyl acetophenone)-3-oxapentane-1,5-diamine Cu(Ⅱ) complex Crystal structure Antioxidant

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Surfactant-Enhanced Phytoremediation of Soils Contaminated with Hydrophobic Organic Contaminants:Potential and Assessment

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Pedosphere 2007年第4期17卷 409-418页

作者： GAO Yan-Zheng LING Wan-Ting ZHU Li-Zhong ZHAO Bao-Wei ZHENG Qing-Song College of Resource and Environmental Sciences Nanjing Agricultural University Nanjing 210095 College of Environmental and Resource Sciences Zhejiang University Hangzhou 310028 （China） School of Environmental and Municipal Engineering Lanzhou Jiaotong University Lanzhou 730070 （China）

Phytoremediation is becoming a cost-effective technology for the in-situ clean up of sites polluted with hydrophobic organic contaminants （HOCs）. The major factors limiting phytoremediation are the mass transfer, rate of plant uptake, and microbial biodegradation of HOCs. This article discusses the potential of surfactants to enhance desorption, plant uptake, and biodegradation of HOCs in the contaminated sites. Positive effects of surfactants on phytoremediation have been recently observed in greenhouse studies. The presence of some nonionic surfactants including polyoxyethylene sorbltan monooleate （Tween 80） and polyoxyethylene（23）dodecanol （Brij35） at relatively low concentrations resulted in significant positive effects on phytoremediation for pyrene-contaminated soil. However, the anionic surfactant （sodium dodecyl sulfate, SDS） and the cationic surfactant （cetyltrimethylammonium bromide, CTMAB） were not useful because of their phytotoxicity or low efficiency for surfactant-enhanced phytoremediation （SEPR）. The mechanisms of SEPR for HOC-contaminated sites were evaluated by considering experimental observations. In view of concerns about the cost effectiveness and toxicity of surfactants to plants, more research is needed to enhance the use of SEPR technology.

关键词： hydrophobic organic contaminant remediation SEPR soil surfaztant

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Quantitative Analysis of Greenhouse Gas from Organic Refuse in Landfill

Quantitative Analysis of Greenhouse Gas from Organic Refuse ...

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The Second International ISCRAM Workshop on Information Systems for Crisis Response and Management

作者： Jun Yang Tao Huang 1.Institute of Environmental Science and Engineering,Southwest jiaotong university, Chengdu 610031,China 2.1nstitute of Environmental and municipal Engineering,lanzhou jiaotong university, lanzhou 730070,China

＜正＞Landfill site is one of the most important sources of greenhouse gas *** gas emitted from the landfill sites are important component of the total greenhouse gas emissions in the *** it is primarily important to predict the production of methane and carbon dioxide in order to control greenhouse gases emitted from *** on the mechanism of anaerobic degradation process of organic refuse,a detailed calculating method was proposed to work out the quantity of greenhouse gas emitted from *** result shows that, 0.3184,0.1192,0.2182 and 0.2297 kilograms of methane,and 0.3795,0.2264,0.5191 and 0.5439 kilograms of carbon dioxide are generated from the waste meat,plant,paper and wood（per kilogram refuse by wet weight） respectively during the anaerobic degradation process in *** conclusion accords closely with the experimental result from available *** on the conclusion,quantity of greenhouse emission from landfill can be predicted if organic component of refuse is measured.

关键词： Landfill Greenhouse Gas Generation Quantitative Analysis Control

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The supramolecular influence on chiral discrimination ability of cellulose tris(phenylcarbamate)chiral stationary phases in HPLC

The supramolecular influence on chiral discrimination abilit...

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西北地区第三届色谱学术报告会暨甘肃省第八届色谱年会

作者： HAN Xiaoqian, WEN Xiaoguang, LIU Gailan, ZHAO Li, LIU Ju (lanzhou jiaotong university, School of Chemical and Biology Engineering, lanzhou 730070)

Cellulose tris (phenylcarbamate) (CTPC) was deposited on aminopropylated silica gel (APS) by evaporation in different solvents. We obtained the six kinds of CTPC chiral stationary phases (CTPC-CSPs). The different solvent has different influence on optical discrimination ability of CTPC-CSPs. This phenomenon shows that the solvent effect on formation of CTPC chiral polymer supramolcular structure. The chiral stationary phase of the best chiral discrimination ability among six CTPC-CSPs is CTPC-CSP4 prepared in MC-PHN solvent system.

关键词： Column liquid chromatography Cellulose tris(phenylcarbamate) phase Supramolecular influence Chiral discrimination ability

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The Fuzzy Weighted Quadratic Minimum Spanning Tree and its Hybrid Genetic Algorithm

The Fuzzy Weighted Quadratic Minimum Spanning Tree and its H...

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第三届不确定系统年会

作者： Linzhong Liu Lixing Yang Department of Mathematical Sciences, Tsinghua university, Beijing 100084, China School of Traffic and Transportation, lanzhou jiaotong university, lanzhou 730070, China School of Traffic and Transportation, Beijing jiaotong university, Beijing 100044, China

＜正＞ The quadratic minimum spanning tree problem is to find a spanning tree in a given graph such that the total cost consists of the direct cost and interactive cost is minimum and is known to be NP-hard. In this paper, the quadratic minimum spanning tree problem with fuzzy weights is firstly formulated as the chance-constrained programming by using the possibility measure and the credibility measure. Then an oriented tree and knowledge-based hybrid genetic algorithm is designed for solving the proposed fuzzy programming models. Finally, a numerical example is given to verify the efficiency of the designed algorithm.

关键词： fuzzy set credibility measure spanning tree genetic algorithm quadratic spanning tree

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Optimal Placement of Wavelength Converting Nodes in Multicast Optical WDM Networks

Optimal Placement of Wavelength Converting Nodes in Multicas...

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2010 Second International Conference on Communication Systems, Networks and Applications (ICCSNA 2010)

作者： Chunlei Zhang Ling Geng Pengtu Zhang School of Electronic and Information Engineering lanzhou jiaotong university lanzhou Gansu P.R.China

This paper addresses the problem of optimally placing a limited number of wavelength converting nodes in multicast optical WDM *** problem is motivated by the high cost incurred in the usage of *** propose a Mixed Integer Linear Programming（MILP） formulation algorithm with the objective function of minimizing the total costs for a given set of multicast sessions in WDM *** results show that the algorithm is tractable in networks with dozens of nodes.

关键词： optical multicasting WDM networks wavelength converters

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客运专线桥梁基于性能的抗震设计研究

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世界地震工程 2010年第1期26卷 40-46页

作者：夏修身陈兴冲兰州交通大学土木工程学院甘肃兰州730070

从基于性能的抗震设计理念出发,给出了客运专线桥梁结构的性能目标及各性能水准下的桥墩地震破损描述,明确并量化了桥墩各抗震性能目标的验算内容。给出了小震不坏及可控制中震损伤的验算方法,简化能力谱法计算位移延性系数,指出了大震... 详细信息

从基于性能的抗震设计理念出发,给出了客运专线桥梁结构的性能目标及各性能水准下的桥墩地震破损描述,明确并量化了桥墩各抗震性能目标的验算内容。给出了小震不坏及可控制中震损伤的验算方法,简化能力谱法计算位移延性系数,指出了大震时最大位移验算的不足,讨论了桥墩大震时地震损伤指数的计算与验算,通过算例详细介绍了基于性能的抗震设计方法与过程。

关键词：客运专线桥梁抗震设计基于性能能力谱

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Magnetic,magetostrictive properties,spin reorientation and Mssbauer effect of Tb_(0.3)Dy_(0.7-x)Prx(Fe_(0.9)Al_(0.1))_(1.95) alloys

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Science China(Physics,Mechanics & Astronomy) 2009年第1期52卷 52-57页

作者： ZHENG XiaoPing1,2, ZHANG PeiFeng2,3, FAN DuoWang3 & LI FaShen3 1 Institute of Electronic Information Science and Technology, lanzhou City university, lanzhou 730070, China 2 Key Laboratory of Opto-Electronic Technology and Intelligent Control, Ministry of Education, lanzhou jiaotong university, lanzhou 730070, China 3 Key Laboratory for Magnetism and Magnetic Materials, Ministry of Education, lanzhou university, lanzhou 730000, China 1. Institute of Electronic Information Science and Technology Lanzhou City University Lanzhou 730070 China 2. Key Laboratory of Opto-Electronic Technology and Intelligent Control Ministry of Education Lanzhou Jiaotong University Lanzhou 730070 China 3. Key Laboratory for Magnetism and Magnetic Materials Ministry of Education Lanzhou University Lanzhou 730000 China

The effect of Pr substitution for Dy on the magnetic and magnetostrictive properties, anisotropy, spin reorientation and Mssbauer effect of a series of Tb0.3Dy0.7-xPrx(Fe0.9Al0.1)1.95 (x=0,0.1,0.20,0.25,0.30,0.35) alloys at room temperature have been investigated. It was found that a small amount of Pr substitution is beneficial to a decrease in the magnetocrystalline anisotropy for the Tb0.3Dy0.7-xPrx(Fe0.9Al0.1)1.95 alloys. The magnetostriction decreases drastically with increasing x and the magnetostrictive effect disappears for x>0.2. However, the magnetostriction exhibits a slightly bigger value at x=0.1 than the free alloys and is saturated more easily with the magnetic field H. The saturation magnetization and Curie temperature decrease monotonously, but the spontaneous magnetostriction increases linearly with increasing x, whereas the spin reorientation temperature increases first, then decreases rapidly and reaches the maximum at x=0.1. The analysis of Mssbauer spectra indicated that the easy magnetization direction in the {110} plane deviates slightly from the main axis of symmetry with the Pr concentration x, namely spin reorientation. Compared with Al substitution for Fe, the effect of Pr substitution for Dy on spin reorientation is relatively small. The hyperfine field increases with Pr concentration increasing, and the isomer shifts and the quadrupole splitting (QS) show weak concentration dependence.

关键词： magnetostriction anisotropy spin reorientation Mssbauer

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Synthesis,Crystal Structure and DNA-binding properties of A Novel Mn(Ⅱ) Complex with Bis(N-benzylbenzimidazolyl-2-ylmethyl)benzylamine

Synthesis,Crystal Structure and DNA-binding properties of A ...

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甘肃省化学会第二十七届年会暨第九届甘肃省中学化学教学经验交流会

作者： Jing-Kun Yuan Ying Bai Xingbin Shu Hui-Lu Wu~* (School of Chemical and Biological Engineering,lanzhou jiaotong university lanzhou,730070)

Benzimidazole and its derivatives are key components in a great many bioactive compounds of both natural and synthetic *** ligands display a wide range of pharmacological activity,and their inhibitory properties as regards the replication of polio viruses,adenosine deaminase,and casein kinase have been fully *** to those excellent properties, transition metal complexes with benzimidazoles have attracted a great deal of interest in coordination and medicinal chemistry.

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