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Study on the proposed environmental guidelines for Cd, Hg, Pb and As in soil of china

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Journal of Environmental Sciences 1992年第1期4卷 66-73页

作者： Wu Yanyu, Tian Junliang Zhou QixingInstitute of Applied Ecology, Chinese Academy of Sciences, shenyang 110015, china.orthwest Institute of water and Soil Conservation, Chinese Academy of Sciences, Shaanxi 712100, {3.

This paper deals with the soil-environmental standard. According to the current situation of researching on the soil-environmental quality guideline at home and abroad, and on the basis of the foundations and principles of enacting the soil-environmental standard, the soil environment quality guideline values of Hg, Cd, Pb and As were suggested.

关键词： soil-environmental standard soil guideline heavy metal functional land use soil background content.

Metals Supported water Monomers:the Bonding Nature Revisited

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Journal of Materials Science & Technology 2010年第2期26卷 97-105页

作者： Jibiao Li, Shenglong Zhu and Fuhui Wang State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, shenyang 110015, china State Key Laboratory for Corrosion and Protection Institute of Metal Research Chinese Academy of Sciences

A single water monomer is known as a hard-to-observe molecule even in the presence of metal surfaces as supporting matrix. This review highlights effort in experimental characterizations and theoretical modeling of transition metals supported water monomers with attention given to its structure and bonding, together with the insights that we have provided into the bonding nature of the water-interactions by the newly employed projected PDOS （partial density of states） difference analysis, which is proved to be an effective tool to be elucidate such bonding nature. The general s-d hybridization and d-shell effect are summarized, and how these effects can be tuned by tailoring local surface configurations is discussed.

关键词： water monomer Adsorption Surface bonding Transition metals

Approaches to municipal wastewater irrigation and environmental protection

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Journal of Environmental Sciences 1990年第2期2卷 63-70页

作者： Gao ZhengminInstitute of Applied Ecology,Academia Sinica,shenyang,china

To reuse the water and nutrient resources from ecological point of view the goals, criteria and constraint conditions of the scientifically municipal wastewater irrigation are discussed as well as the practice in major municipal wastewater irrigation areas in china.is introduced, of which particularly the effects of municipal water irrigation mixing with oil refinery wastewater on the agricultural ecosystem are studied and described. It has been revealed that benzo(a)pyrene in various parts of paddy crop is attributed to air pollution, water-soil pollution and biosynthesis of plant. Of exogenous contributions of benzo(a)pyrene in paddy shoot system under natural condition, the dominant factor is the air pollution, whereas the water-soil factor is considered to be secondary. Therefore, it is mostly urgent to control the air pollution source of benzo(a)pyrene, to which the edible parts of various green plants are exposed directly.

关键词： municipal wastewater irrigation land treatment system benzo(a)pyrene pollution ecological engineering.

Simulation on Hot Metal Dephosphorization by Powder Injection in Torpedo-Car

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Journal of Iron and Steel Research International 2011年第S2期18卷 69-73页

作者： LUO Zhi-guo, ZOU Zong-shu (Materials and Metallurgy School, Northeastern University, shenyang 110004,Liaoning,china. Northeastern Univ Sch Met & Mat Shenyang 110004 Liaoning Peoples R China

Powder injection is widely used in hot metal pretreatment. The kinetic analysis of refining process shows that the reagent utilization and pretreatment efficiency are determined by the penetration ratio of powder into metal, the residence time of powder in the metal bath, as well as the uniform mixing time of the bath. The characterization of these parameters is studied with water model experiment, and, a mathematical model is developed for hot-metal dephosphorization in torpedo car. water-model experiment results and industrial data are used to determine the model parameters and verify this model, the results show that the prediction from the model agrees well with practical results.

关键词： uniform mixing time penetration ratio residence time hot metal dephophorization powder injection

Study on syntheses and structures of nine-coordinated mononuclear K[TbⅢ(edta)(H2O)3.·5H2O and binuclear K4[TbⅢ2(Httha)2]·14H2O complexes

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Rare Metals 2003年第4期22卷 241-249页

作者： WANG Jun, LIU Zhenrong, ZHANG Xiangdong, JIA Weiguo, and ZHANG YangDepartment of Chemistry, Liaoning University, shenyang 11003., china Department of Chemistry Liaoning University Shenyang 110036

The crystal and molecular structures of the K[Tb^(III)(edta)(H_2O)_3..5 H_2O(edta = ethylenediaminetetraacetic acid) and K_4[Tb^(III)_2(Httha)_2].14 H_2O (ttha =triethylenetetraminehexaacetic acid) complexes have been determined by single-crystal X-raydiffraction analyses. The crystal of the K[Tb^(III)(edta)(H_2O)_3..5 H_2O complex belongs toorthorhombic crystal system and Fdd 2 space group. The crystal data are as follows: a = 1.93.3.5)nm, b = 3.5429(10) nm, c = 1.2114(3. nm, V 8.3.5(4) nm^3. Z= 16, M= 63..3., Dc = 2.014 g cm^(-3., m= 3.683.mm^(-1) and F(000) = 5024. The final Rand wR values are 0.0224 and 0.0557 for 3.89 [I> 2.0sigma(I)] unique reflections, and 0.0245 and 0.0567 for all 8206 reflections, respectively. The[Tb^(III)(edta)(H_2O)_3.^- complex anion has a nine-coordinated pseudo-monocapped squareantiprismatic structure in which the nine coordinate atoms, two N and seven O come from one edtaligand and three water molecules. The crystal of the K_4[Tb^(III)_2(Httha)_2].14 H_2O complexbelongs to monoclinic system and P 2(1)/n space group. The crystal data are as follows: a =1.13.6(3. nm, b = 2.5675(7) nm, C =2.2076(6) nm, bate = 102.943.5) centre dot, V =6.256(3. nm^3. Z =4, M = 1705.26, Dc = 1.802 g cm^(-3., m = 2.611 mm^(-1) and F(000) = 3.24. The final R and wR are0.03.9 and 0.0667 for 10699 [I>2.0 sigma (I)] unique reflections, and 0.0543.and 0.0741 for all22190 reflections, respectively. The total complex molecule is composed of two close parts instructure.

关键词： synthesis and structures Tb^(III) edta ttha

A simple method of synthesizing multi-wall carbon nanotubes/SnO core/shell nanostructure

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Rare Metals 2007年第S1期26卷 191-194页

作者： SUN Xue1),CHU Yi2),WANG Dawei3.,DU Jinhong3.,ZHANG Baoyou2),and WANG Fuping1)1) School of Science,Harbin Institute of Technology,Harbin 150001,china.2) School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,china.3. shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,shenyang 110016,china Harbin Inst Technol Sch Sci Harbin 150001 Peoples R China Harbin Inst Technol Sch Mat Sci & Engn Harbin 150001 Peoples R China Chinese Acad Sci Inst Met Res Shenyang Natl Lab Mat Sci Shenyang 110016 Peoples R China

Multi-wall carbon nanotubes(MWNTs)/SnO core/shell nanosturcture was synthesized by a simple solution-based method,in which SnCl2 was solved in distilled water containing dispersed MWNTs,then stired,filtered and washed in ambient atmosphere,finally dryed in air at 90 ℃ for 6 *** MWNTs/SnO core/shell nanostructure was characterized by X-ray diffraction(XRD),transmission electron microscopy(TEM).It is found that surface defects of MWNTs are necessary for the deposition of *** mechanism of the SnO nanocoating formation through the hydrolysis of SnCl2 in water(4SnCl_2+2H_2O-Sn_4(OH)2Cl_6+2HCl) was presented.

关键词： precipitate isothermal aging thermodynamic calculation phase diagram high nitrogen austenitic stainless steel

Experiment Study on Castex Process of AS Wire

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Journal of University of Science and Technology Beijing 2001年第1期8卷 22-24页

作者： Zhiyuan Shi Wanjun Wang Jinglin Wen Xinhua Wang Metallurgy School, University of Science and Technology Beijing, Beijing 100083. china.School of Materials and Metallurgy,Northeastern University, shenyang 110006, china Metallurgy School Univ. of Science/Technology Beijing Beijing 100083 China

In order to optimize the Castex process of AS wire, the systematic experiments have been done for different process parameters with self-made DZJ-II 3.0 Castex machine. The parameters, such as casting temperature of aluminum, flow of cooling water, extrusion ratio and the gap between the surface of wheel and that of the mould, have been mainly studied. The results show that with the increase of casting temperature or rotating speed of wheel the measured length of liquid metal zone increases too. However, the length of liquid metal zone decreases with the increase of the flow of cooling water. Moreover, the relationship between the extrusion ratio and the extrusion power is studied.

关键词： Castex AS wire parameter length of liquid metal zone

Resourceful ecological treatment of wastewater in urban ecosystem

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Journal of Environmental Sciences 1994年第4期6卷 487-495页

作者： Song Yufang Sun Tieheng Gong Ping Chang Zhijun (Institute of Applied Ecology, Chinese Academy of Sciences, shenyang 110015 . china.

The treatment amount of wastewater is restricted to a small percentage in china. One of thereasons for that is the shortage of funds. Therefore , developing the technology of cost-effective , low energy-consuming and high efficiency is one of the important way to speed up the steps of wastewater *** paper elucidated the principal and charactertics of the resourceful ecological treatment of wastewater. Asuccessful example of resourceful ecological land treatment of wastewater was given. The key points and therelative policies concerning the further development of resourceful ecological treatment of wastewater as asets of technologies have been suggested.

关键词： ecological treatment water resources wastewater pollution.

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科技奥运的技术困境及消解

体育科学 2004年第10期24卷 2-7,20页

作者：董传升沈阳体育学院社会体育系辽宁沈阳110032

探讨了技术支持及消除技术异化有关理论与现实问题 ,提出技术化的奥林匹克运动陷入了哲学的、道德的、伦理的和逻辑的困境。奥林匹克运动困境的根源是人主体限度的超越、技术应用限度的超越以及体育理性的过度扩张。通过促进人们对奥林... 详细信息

探讨了技术支持及消除技术异化有关理论与现实问题 ,提出技术化的奥林匹克运动陷入了哲学的、道德的、伦理的和逻辑的困境。奥林匹克运动困境的根源是人主体限度的超越、技术应用限度的超越以及体育理性的过度扩张。通过促进人们对奥林匹克运动价值认识进行合理回归 ,设定技术应用的普遍性原则、辅助性原则、适度性原则。

关键词：科学技术奥运会理论