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Evaluation of groundwater quality in the Xinjiang Plain Area

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Evaluation of groundwater quality in the Xinjiang Plain Area

中国科学院地质与地球物理研究所第十届(2.10年度)学术年会

作者： Jinlong ZHOU~(1,2.3.,Xinguang DONG~2.Guomin LI~1,Yiping WANG~2.Xiaojing GUO~3.1 Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 10002.,{2. 2.college of Water Conservancy and civil {3.,Xinjiang Agricultural University,Urumqi 83.052.{2. 3.School of Environmental Science,{2. University of Geosciences,Wuhan 43.074,{2.

Groundwater is the main source of drinking water for the urban and rural residents in the plain area of the Xinjiang Uygur Autonomous Region,*** quality of groundwater has a direct relationship with human ***,3.6 groundwater samples collected from April to August in 2.03.were analyzed The samples were collected in basic evaluation units which are determined on the basis of *** dissolved solids,total hardness,pH ***-N,CHOH, Chemiluminescence detection of permanganate index (COD)and intestinal germ group were evaluated according to the guidelines of Groundwater Quality Standard(GB/T14848-93..The quality of the groundwater in each evaluation unit was classified by using the One Veto Method(a unified approach stipulated by the Ministry of Water resources).The results indicate that the groundwater in the mainstream area of the Tarim Basin and the Yerqiang River Sub-basin belongs to Category V;the groundwater in the Wulungu River Sub-basin,the Kaidu-Kongque River Sub-basin,the Kashgar River Sub-basin, the Cherchen River Sub-basin and the Hotan River Subbasin belongs to CategoryⅣ;the groundwater in the Aibi Lake System belongs to CategoryⅡ,and the groundwater of other evaluation units belongs to CategoryⅢ.The causes of water quality formation were concisely analyzed. The results can be useful for the evaluation and management of water resources in the Xinjiang Plain Area.

关键词： groundwater quality evaluation one veto method total dissolved solids(TDS) pH total hardness

AN INTEGRATED APPROACH FOR SIMULATING AND PREDICTING SCOUR AROUND ABUTMENTS

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International Journal of Sediment Research 2006年第3期21卷 238-247页

作者： L. Q. ZHANG1, D. H. ZHAO2.and H. W. SHEN3.1 Ph.D. Candidate, Water Environment & resources {2., Hohai University, Nanjing 2.0098, china 2.Prof., Nanjing Hydraulic Institute, Nanjing 2.002., china 3.Emeritus Prof., Department of civil & Environmental engineering, University of California, Berkeley, CA 9472., USA Water Environment & resources college Hohai University Nanjing 210098 China Nanjing Hydraulic Institute Nanjing 210024 China Department of civil & Environmental engineering University of California BerkeleyCA 94720 USA

A new experimental and numerical approach to predict scour around abutments located either in the floodplain of a compound channel or in a rectangular channel was investigated. A prediction equation for the scour around abutments was proposed on the basis of the experimental study. A special horizontal two-dimensional (2.) numerical model was combined with the experimental studies. The 2. model is based on the principles of the finite volume method with Riemann solvers. The corrections to account for the impacts of the hydrostatic pressure assumption, turbulence, and three-dimensional behavior were embedded in the 2. model. The proposed prediction equation is based on both experimental and numerical techniques for estimation of scour depths in cases with different channel geometries and abutment lengths under various flow conditions. A comparison was done of the measured scour depths from the experiments and the calculated scour depths from the prediction equation. It was proved that the scour depths predicted with the proposed equation matched better with the measured values than another similar prediction equation.

关键词： Shallow water equations Scour Finite volume method Riemann solver Froude number

Assessment Model of Set Pair Analysis for Flood Loss Based on Triangular Fuzzy Intervals under α-Cut

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Assessment Model of Set Pair Analysis for Flood Loss Based o...

2.09中国控制与决策会议

作者： PAN Zheng-wei~1,WU Kai-ya~2.JIN Ju-liang~3.LIU Xiao-wei~1 1.college of Natural {2. and Environmental engineering,Hefei University of Technology,Hefei 2.0}009,{3. 2.National Innovative Institute for Public Management and Public Policy,Fudan University,Shanghai,2.043.,{3. 3.School of civil engineering,Hefei University of Technology,Hefei 2.0}009,{3.

＜正＞The flood disaster is one of the most serious natural *** is the important basis of making plan for flood control to assess flood losses *** results of the common assessment methods are discrete values and low resolution which are applied widely at *** research to more precise,more intuitive method of loss evaluation for flood disaster is the *** set pair analysis assessment model was established by the a-cut set of triangle fuzzy number A in this *** case study shows this method not only presents the concrete rank of flood lose,but also finds that the evaluating rank is a confidence interval;in addition,we can obtain priorities of different areas by the expectation and square difference method for priorities of interval numbers.

关键词： flood lose set pair analysis triangle fuzzy number α-cut set interval numbers expectation and square difference method for priorities

Using Genetic Algorithm on Rough Set Reduction of Attributes

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Using Genetic Algorithm on Rough Set Reduction of Attributes

The Second Conference on Fuzzy Information & engineering

作者： SONGYUN GUO Staff Room of Preparatory Courses. shenyang Artillery Academy, shenyang 110162.{2. ZHI TAO {3. of Sciences, civil Aviation University of{2.,Tianjin,3.03.0,{2.

By providing an overview of genetic algorithm,this paper shows how it’s suitable to solve large complex problems, and further discusses its application in rough set reduction of attributes by examples, i.e., based on... 详细信息

关键词： genetic algorithm rough set reduction of attributes selection operator, crossover operator mutation operator

全程与阶段性非充分灌溉条件下水稻的生长及部分生理反应

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土壤学报 2004年第4期41卷 641-644页

作者：钱晓晴沈其荣王娟娟周明耀柏彦超杨建昌南京农业大学资源与环境科学学院南京210095 扬州大学农学院江苏扬州225009 扬州大学水利与建筑工程学院江苏扬州225009

有关水分胁迫改变水稻生长形态、组织结构与生理代谢方面的研究已有不少报道,但试验结果间颇有差异[1-9].在以往水分胁迫的植物效应研究中,往往只讨论水分胁迫处理本身对试验结果的影响,较少涉及处理前水稻生长环境的影响.至今尚未见有... 详细信息

有关水分胁迫改变水稻生长形态、组织结构与生理代谢方面的研究已有不少报道,但试验结果间颇有差异[1-9].在以往水分胁迫的植物效应研究中,往往只讨论水分胁迫处理本身对试验结果的影响,较少涉及处理前水稻生长环境的影响.至今尚未见有作物对全程和阶段性非充分灌溉反应差异的试验报道.本研究拟通过作物体对水分胁迫较为敏感的叶片水分含量、叶绿素含量和丙二醛(MDA)含量、根系活力、叶片气孔阻抗和光合速率等指标进行测定,探讨抽穗后(即阶段性)与全程非充分灌溉影响水稻产量形成的差异及其生理机制,为发展水稻节水栽培技术提供理论依据.……

关键词：非充分灌溉水稻生长组织结构生理代谢水分胁迫

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Research on Emergency Rescue Management Decision Support System at Airports

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Research on Emergency Rescue Management Decision Support Sys...

2.08（沈阳）国际安全科学与技术学术研讨会

作者： DU Hongbing YU Lan (college of Safety Science & engineering {2. Aviation University of{3. Tianjin 3.03.0 china)

＜正＞Aiming at decision-making error or delay problems due to insufficient information of data,model and knowledge during airport emergency rescue and response,Airport Emergency Rescue Management Decision Support System（for short, AERDSS）was put *** on the theory of decision support system,three base models,namely,the database,model base and knowledge base,were established of *** six function modules,*** rescue operation management, emergency rescue response,rescue training and plans,emergency rescue files,emergency rescue data and system management, were constructed of *** work flow,logic structure and function module of AERDSS were *** addition,an application program of AERDSS was designed in shenyang Taoxian International *** application shows that AERDSS makes airport emergency rescue management better.

关键词： civil aviation airport emergency rescue decision support system

EXPERIMENTAL INVESTIGATIONS AND NUMERICAL SIMULATIONS OF REDUCING SECONDARY FLOWS AROUND A SPUR DIKE

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International Journal of Sediment Research 2006年第2期21卷 145-157页

作者： Xuelin TANG1, Xiang DING2. Zhicong CHEN3.and Wenlong WANG41 Assoc. Prof., college of Water Conservancy & {2. engineering,{3. Agricultural University, Beijing 100083.{3. Dept. of Hydraulic engineering, Tsinghua University, Beijing 100084,{3., 2.Doctoral Student, Dept. of Hydraulic engineering, Tsinghua University, Beijing 100084,{3. 3.Prof., Dept. of Hydraulic engineering, Tsinghua University, Beijing 100084,{3. 4 Prof., Dept. of Hydraulic engineering, Tsinghua University, Beijing 100084,{3. State Key Laboratory of Soil Erosion and Dryland Forming on the Loess Plateau. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water {13., Yangling 712.00,{3. Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712.00,{3. college of Water Conservancy & civil {2. China Agricultural UniversityBeijing 100083China Dept.of Hydraulic engineering Tsinghua UniversityBeijing 100084China

To better understand the flow patterns near Jiuling Hill in the approach navigation channel of the Three Gorges Project and to improve the navigation channel, a physical flume model was constructed with a non-submerged spur dike placed as a barrier. An approach of sucking a small amount of water from the upper flume at the convex side of the spur dike and spouting it out again into the lower flume at the downstream side of the spur dike, so-called “sucking-spouting” water method, was proposed to improve navigational conditions. The flows around the spur dike for this method are experimentally investigated, and are compared to those in the no “sucking-spouting” water case. Based on the rigid lid assumption and a Dynamic Smagorinsky Model, all the vortex flows around the spur dike are numerically simulated, and the data are analyzed systematically. By applying “sucking-spouting” method, the recirculation zone caused by the spur dike reduced greatly and the transverse velocity decreased. At the same time, the flow behind the spur dike is much more complex, and materials and momentum substantially exchange between the dead zone and the main flow because of spouting action. The finite volume method is used to discretize the governing equations together with a staggered grid system, where the second-order difference is applied for the diffusion terms and the source terms while the upwind difference QUICK is used for the convection terms. The computational results are in fairly good agreement with the experimental data.

关键词： Three Gorges Project Non-submerged spur dike Three-dimensional flow Vortex flow Rigid lid assumption Dynamic large eddy simulations

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钢纤维水泥砂浆钢筋网加固RC方柱试验研究

沈阳建筑大学学报(自然科学版) 2011年第3期27卷 430-435页

作者：卜良桃毛海斌湖南大学土木工程学院

目的研究钢纤维水泥砂浆(SFCM)钢筋网加固法加固RC方柱的力学性能以及影响因素.方法对4根RC方柱采用钢纤维水泥砂浆钢筋网进行加固,在5 000 kN反力架上进行轴心抗压一次受力试验,并与另外2.未加固柱试验结果进行对比.结果 SFCM钢筋网... 详细信息

目的研究钢纤维水泥砂浆(SFCM)钢筋网加固法加固RC方柱的力学性能以及影响因素.方法对4根RC方柱采用钢纤维水泥砂浆钢筋网进行加固,在5 000 kN反力架上进行轴心抗压一次受力试验,并与另外2.未加固柱试验结果进行对比.结果 SFCM钢筋网加固法能大幅提高钢筋混凝土柱的极限承载能力、峰值应变、开裂荷载、延性,其中轴心抗压极限承载力提高幅度最小为53.,最大为103.;有效改善被加固柱裂缝的分布形态及破坏形态,使裂缝由不加固的疏而宽变得密而细.结论 SFCM钢筋网加固法可大幅提高构件的极限承载力,改善构件延性,约束构件裂缝发展;给出了受压承载力计算方法,利用该方法所得计算值与试验结果吻合较好.

关键词：钢纤维水泥砂浆加固 RC方柱一次受力

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水环境变化对中华鲟的影响

水电能源科学 2009年第3期27卷 35-37页

作者：胡小琴姜翠玲裴海峰谢向前河海大学水文水资源学院江苏南京210098 内蒙古农业大学水利与土木建筑工程学院内蒙古呼和浩特010018 中国水电顾问集团华东勘测设计院浙江杭州310014

针对中华鲟为国家一级保护动物,其独特的生物学特性对生存的水域环境要求较高的特点,通过对长江宜昌段水质监测,分析了产卵场水质及水利工程建设对中华鲟生殖、繁育产生的影响,对保护中华鲟物种资源具有十分重要的现实意义。

关键词：中华鲟水环境污染水利工程建设影响

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