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Prediction of the thermodynamic properties of 1-alkyl-3..ethylimidazolium lactate ionic liquids [C_nmim][Lact](n=2,3..,5,and 6) by parachor

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Science China Chemistry 2010年第12期53卷 2564-2570页

作者： FANG DaWei 1,3..ONG Jing 2,GUAN Wei 2,WANG Han 2 & YANG JiaZhen 1,3.. Institute of Rare and Scattered Elements Chemistry,Liaoning University,shenyang 11003..China 2 College of Chemistry,Liaoning University,shenyang 11003..China 3..ey Laboratory of Rare and Scattered Elements,Liaoning Province,shenyang 11003..China 1. Institute of Rare and Scattered Elements Chemistry Liaoning University Shenyang 110036 China3. Key Laboratory of Rare and Scattered Elements Liaoning Province Shenyang 110036 China2. College of Chemistry Liaoning University Shenyang 110036 China

An ionic liquid (IL) based on lactate,1-butyl-3..ethylimidazolium lactate ([C4mim][Lact]),has been prepared and characterized by 1H nuclear magnetic resonance (NMR) spectroscopy and differential scanning calorimetry (DSC).Since the IL can form strong hydrogen bonds with water,trace water is a problematic impurity in the *** the standard addition method (SAM),the density,refractive index and surface tension of [C4mim][Lact] were measured in the temperature range (3...15 to 3...15 ± 0.05) *** the basis of the experimental data,the parachor and molar volume for [C4mim][Lact],and the molecular volume V m,surface tension γ,molar enthalpy of vaporization △lgHm 0,refractive index n D,and the thermal expansion coefficients,for the homologues [Cnmim][Lact] (n=2,3..,5,and 6) were estimated using semi-empirical *** estimated values are in good agreement with the experimental data.

关键词： parachor lactate ionic liquid density surface tension refractive index

Comprehensive benefit of flood resources utilization through dynamic successive fuzzy evaluation model: A case study

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中国科学：技术科学英文版 2010年第2期53卷 529-538页

作者： FENG Feng1,2, XU ShiGuo1, LIU JianWei1, LIU Dan1,3.. WU Bo4 1 Institute of water Environment, School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China 2 Yellow River Conservancy Technical Institute, Kaifeng 475003..China 3..ollege of water resources, {3..Agricultural University, {3..110161, China 4 Office of Flood Control and Draught Relief in Jilin Province, Changchun 13..3.. China 1. Institute of water Environment School of Civil and Hydraulic Engineering Dalian University of Technology Dalian 116024 China2. Yellow River Conservancy Technical Institute Kaifeng 475003 China3. College of Water Resources Shenyang Agricultural University Shenyang 110161 China4. Office of Flood Control and Draught Relief in Jilin Province Changchun 130033 China

Taking the flood resources utilization in Baicheng, Jilin during 2002–2007 as the research background, and based on the entropy weight and multi-level & multi-objective fuzzy optimization theory, this research established a multi-level & semi-constructive index system and dynamic successive evaluation model for comprehensive benefit evaluation of regional flood resources utilization. With the year 2002 as the base year, the analyzing results showed that there existed a close positive correlation between flood utilization volume and its benefits, comprehensive evaluation value and its comparison increment. Within the six successive evaluation years, the comprehensive benefit of 2003..as the best, in which the benefit evaluation increment reached 82.8% whereas the year of 2004 was the worst, in which the increment was only 18.2%. Thus the sustainability and correctness of the evaluation were verified by six years successive evaluation and increment comparison. The analyzing results showed that the economic benefits, ecological benefits and social benefits of flood utilization were remarkable, and that the comprehensive benefit could be improved by increasing flood utilization capacity, which would promote the regional sustainable development as well. The established dynamic successive evaluation provides a stable theoretical basis and technical support for further flood utilization.

关键词： flood resources utilization comprehensive benefit dynamic successive fuzzy evaluation Baicheng City

Combination of drainage, water supply and environmental protection as well as rational distribution of water resource in Zhengzhou mining district

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Science China Earth Sciences 2005年第10期48卷 1768-1779页

作者： WU Qiang1, LI Duo1,2, DI Zhiqiang3..MIAO Ying3..ZHAO Suqi4 & GUO Qiwen5 1. Resource Exploitation Engineering College, CUMT, Beijing 100083..China 2. Shijiazhuang Engineering College, University of Economics, Shijiazhuang 05003.. China 3..shenyang Institute of Geology and Mineral resources, shenyang 11003.. China 4. State Adminstration of Coal Mine Safety, Beijing 100013..China 5. Zhengzhou Coal Mine Company (Group), Zhengzhou 4523.., China Resource Exploitation Engineering College CUMT Beijing China Shijiazhuang Engineering College University of Economics Shijiazhuang China shenyang Institute of Geology and Mineral resources shenyang China State Adminstration of Coal Mine Safety Beijing China Zhengzhou Coal Mine Company (Group) Zhengzhou China

The geological condition of coalfield is much complex in China. With increasing in mining depth and drainage amount, the contradiction of drainage, water supply and environ-mental protection is becoming more and more serious. However, the contradiction can be solved by the scientific management of optimizing combination of drainage, water supply and environ-mental protection. The Philip multiple objectives simplex method used in this article has searched for a possible solution at the first step, and then it goes on searching to find out whether there is a weight number that can lead the solution to the biggest. It can reduce the randomness and diffi-culty of traditional weight method which determine the weight number artificially. Some beneficial coefficients are vague and the number is larger in the model of water resource dispatch. So the vague layer analysis method can consider these vague factors fully, combining the qualitative and quantitative analysis together. Especially, this method can quantify the experiential judge-ment of policy decider, and it will turn to be more suitable if the structure of objective factors is complex or the necessary data are absent. In the paper, the two methods above are used to solve the plans of drainage, water supply and optimizing distribution of water resource in the Zhengzhou mining district.

关键词： combination of drainage, water supply and environmental protection, Philip multiple objective simplex method, vague layer analysis method, distribution of water resource.

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不同底质条件下苦草根部细菌群落的组装模式

水资源保护 2024年第4期40卷 109-117页

作者：张文龙王新梓潘沈阳周鹏程李轶河海大学浅水湖泊综合治理与资源开发教育部重点实验室江苏南京210098 河海大学环境学院江苏南京210098

通过室内试验模拟不同底质条件,研究了苦草根部细菌群落的组装模式和功能变化。结果表明:底质条件的改变对苦草根际细菌群落产生了显著影响(p=0.003..特别是在添加有机质和植物根际促生菌的底质条件下;尽管根际细菌群落与根内生菌群落... 详细信息

通过室内试验模拟不同底质条件,研究了苦草根部细菌群落的组装模式和功能变化。结果表明:底质条件的改变对苦草根际细菌群落产生了显著影响(p=0.003..特别是在添加有机质和植物根际促生菌的底质条件下;尽管根际细菌群落与根内生菌群落存在较强联系,但根内生菌群落组装过程拥有更高的确定性,而根际细菌群落组装过程更易受到植物宿主以外叠加的环境因素影响;功能预测结果表明在添加有机质和植物根际促生菌的条件下,苦草根部细菌群落拥有更高的代谢活性,更有利于有益细菌群落在苦草根部的富集。

关键词：底质条件苦草根际细菌群落根内生菌群落组装模式

维普期刊数据库博看期刊

Planning and Design of the shenyang Round-the-City water System and the Green Zone Project

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China City Planning Review 1990年第4期7卷 77-81,76页

作者： The shenyang Institute of Urban Planning and Design WangDi The shenyang Institute of Urban Planning and Design

The shenyang round-the-city watersystem and the green zone project was plan-ned and implemented under the guidance ofthe master plan of the *** project in-cludes the three artificial rivers(Nanyun Riv-er,Xinkai River ... 详细信息

关键词： Planning and Design of the shenyang Round-the-City water System and the Green Zone Project Design

Numerical Analysis of Cylindrical Cavity Expansion in Sand Considering Particle Crushing and Intermediate Principal Stress

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Transactions of Tianjin University 2010年第1期16卷 68-74页

作者：郝冬雪栾茂田李波陈榕 State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology School of Civil and Architecture Engineering Northeast Dianli University water resources College Shenyang Agriculture University

Considering the effects of particle crushing and intermediate principal stress on material yielding strength, the spatial mobilization plane(SMP) yielding criterion and state parameter model including a general critical state line are selected in the analysis of cylindrical cavity ***, combining Rowe s flow rule and Bolton s simplification to stress-dilatancy relationship to reflect soil shear dilatancy and softening behavior, this paper analyzes the problem of cylindrical cavity expansion i...

关键词： spatial mobilization plane(SMP) theory particle crushing strain-softening discretization analysis plastic zone

Precipitation of α_2 Phase in α+β Solution-Treated and Air-cooled Ti-Al-Sn-Zr-Mo-Si-Nd Alloys

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Journal of Materials Science & Technology 2001年第3期17卷 315-317页

作者： Jun ZHANG and Dong LI Institute of Metal Research, Chinese Academy of Sciences, shenyang 110016, China resent address: shenyang University, shenyang 110044, China E-mail: zhjun14@*** Chinese Acad Sci Met Res Inst Shenyang 110016 Peoples R China

A series of Ti-Al-Sn-Zr-Mo-Si-Nd alloys with various content of Al were solution treated in α+β phase field and air-cooled. The precipitation of a2 phase in cooling was investigated by transmission electron microscopic analysis The precipitation characteristic of α2 phase was discussed. The precipitation of α2 phase would proceed by the nucleation and growth of α2 phase dependent on the diffusion of Al atoms. And a comparison on the difference of precipitation of α2 phase was carried out under the conditions of air-cooling and quenching in water. The investigation showed that the air-cooling and even quenching could supply enough time for the precipitation and growth of α2 phase when Al content reached a certain value even though far away from the stoichiometric composition of Ti3...

关键词： Al Precipitation of Phase in Solution-Treated and Air-cooled Ti-Al-Sn-Zr-Mo-Si-Nd Alloys Ti Mo Sn Zr Nd Si

Microwave Disinfection in a Ventilation and Air-Conditioning System

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湖南大学学报（自然科学版） 2009年第S1期36卷 55-59页

作者： LU Zhen1,2,ZHANG Ji-li1,MA Liang-dong1,HE Juan3...School of Civil & Hydraulic Engineering,Dalian University of Technology,Dalian,Liaoning 116023..hina 2.Municipal and Environmental Engineering Research Center,shenyang Jianzhu University,shenyang,Liaoning 110168,China 3..chool of Municipal & Environmental Engineering,Harbin Institute of Technology,Harbin,Heilongjiang 150090,China) School of Civil and Hydraulic Engineering Dalian University of Technology Dalian 116023 China Municipal and Environmental Engineering Research Center Shenyang Jianzhu University Shenyang 110168 China School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150090 China

Because of its broad spectrum and high efficiency,the microwave disinfection was used to control the airborne microbial contaminates in VAC *** microwave disinfection devices were developed combined with air filter,the design and calculation method was presented,and the disinfection effects on White staphylococcus,Staphylococcus aureus,Bacillus Subtilis,Escherichi coli were *** results show that the major influence factors on disinfection effect are microwave power,water-content of filter material,disinfecting *** 15 min,the kill ratio is >90%,and the log value is >*** microwave field is uniform and the kill effect of bacteria on each surface of filter is the same,without statistically significant difference.

关键词： VAC system microwave disinfection airborne microbe microwave power kill ratio

The Machanism of Bacterial Oxidation of Sulphides

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Acta Geologica Sinica(English Edition) 1994年第1期68卷 31-42页

作者： Wang Ende shenyang Institute of Gold Technology, shenyang, Liaoningand Guan Guangyue Northeast U niversity of Technology, shenyang, Liaoniny shenyang Institute of Gold Technology Shenyang Liaoning China

The bacteria used in the experiment are Thiobacillus Ferrooxidans separated from acidic mine water in sulphide deposits. The chemoautotrophic bacteria can act directly on sulphides and accelerate the oxidation of sulphides. The experiment shows that the bacteria, as an important microbial factor of gold's supergenous enrichment within the oxidized zones of sulphide deposits, are helpful to dissolve gold and silver in ferric sulphate. In the bacterial oxidation process, the precipitation of goethite is concerned both with the lower activity of ferric ions and with the existence of carbonates in solution. Meanwhile, the acid-resisting and oxidizing ability of the bacteria will certainly lead up to a microbial way of treating the acidic mine water.

关键词： sulphides bacterial oxidation supergene enrichment of gold