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Synthesis and Crystal Structure of Dichlorobis[N-(4-hydroxylsalicylidene)3-dimethylaminopropylamine]Ni(II)

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Chinese Journal of Structural Chemistry 2003年第5期22卷 544-546页

作者： FENG Yun-Long② (institute of Physical Chemistry, Zhejiang Normal university, Jinhua 321004, china) Zhejiang Normal Univ Inst Phys Chem Jinhua 321004 Peoples R China

The title complex, C24H36Cl2N4NiO4, crystallizes in the monoclinic system, space group P21/c with a = 15.048(3), b = 6.578(1), c = 14.405(3) ? b = 103.03(3), V = 1389.2(5) ?, Z = 2, Mr = 574.18, F(000) = 604, Dc = 1.373 g/cm3 and m(MoKa) = 0.926 mm-1. The structure was refined to R = 0.0337 and wR = 0.0954 for 2381 observed reflections (I > 2s(I)). The coordination environment around the Ni atom is a distorted NiN2O2 square-plane composed of two nitrogen and two oxygen atoms from the neutral Schiff base ligand of N-(4-hydroxylsalicylidene)-3-dimethyl- aminopropylamine

关键词： nickel complex N,N-dimethylaminopropylamine Schiff base crystal structure

Development of environmental monitoring satellite systems in china

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Science china Earth Sciences 2010年第S1期53卷 1-7页

作者： LI GuoPing1 & CAO ChunXiang2 1 School of Earth and space Sciences,Peking university,Beijing 100871,china 2 State Key Laboratory of Remote Sensing Science,Jointly Sponsored by the institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal university,Beijing 100101,china School of Earth and space Sciences Peking University Beijing China State Key Laboratory of Remote Sensing Science Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University Beijing China

With the increase in global environmental problems,the necessity and urgency of remote sensing technology being applied to environmental monitoring has been widely recognized around the *** has launched the environment and disaster monitoring and forecasting small satellite constellation HJ-1A/B and the FY3 atmosphere and environmental satellite,but they still cannot fully satisfy requirements for environmental *** paper summarizes the current status of satellite environmental monitoring in china and the existing problems of inadequate load design and low data utilization efficiency,and discusses the demand for environmental monitoring *** on the development of foreign satellite systems for environmental monitoring,the future development and key tasks of the environmental monitoring satellite system in china is discussed,as are some related initiatives.

关键词： environmental satellite environmental monitoring global climate change specialty load satellite system

The potential effect of variations in climate and agricultural practice on N_2O emissions (Ⅱ)——Variations in agricultural practice

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Chinese Science Bulletin 1999年第S2期44卷 97-99页

作者： XU Wenbin~(1,2), HONG Yetang~1, CHEN Xuhui~3, LI Changsheng~4, LIN Qinghua~1 and WANG Yu~1, 1. State Key Laboratory of environmental Geochemistry, institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, china 2. institute of environment and Resources Chemistry, Zhejiang university, Hangzhou 310027, china 3. Soil and Fertilizer institute, Guizhou Academy of Agricultural Sciences, Guiyang 550013, china 4. institute for the Study of Earth, Oceans, and space, university of New Hampshire, Durham, USA State Key Laboratory of environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China institute of environment and Resources Chemistry Zhejiang University Hangzhou 310027 China Soil and Fertilizer institute Guizhou Academy of Agricultural Sciences Guiyang 550013 China institute for the Study of Earth Oceans and Space University of New Hampshire Durham NH United States

WE expanded Decomposition-Denitrification （DNDC）modeling study to systematically assess the potential effect of farming practice on N2O emission by choosing a corn-rape rotation and a soybean-winterwheat rotation field in Guizhou Province, westsouthern china, asN2O emission from subtropical agricultural soil study plots. These sensitivity studies address questions relevant to issue of how change in fanning practice might be used to mitigate emissions. Manure additions had the most pronounced impact on N2O emissions of farming practice simulatedand the influence of manure addition was nonlinear （fig. 1）. This result is consistent with previous studies for an Iowa corn field. The addition of manure remarkably elevates the level of organic carbon, enhances soil nitrogen mineralization, and increases the efficiency of N2O production. Simulated results alsoshowed that the influence of manure additions on N2O emission from soybean-winter wheat field had

关键词： N2O emission farming practice potential effect agricultural soil.

Operation Performance of Central Solar Heating System with Seasonal Storage Water Tank in Harbin

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湖南大学学报（自然科学版） 2009年第S1期36卷 111-114页

作者： YE Ling1,JIANG Yi-qiang1,YAO Yang1,ZHANG Shi-cong2(1.institute of Heat Pump and Air Conditioning Technology,Harbin institute of Technology,Harbin,Heilongjiang 150090,china 2.institute of Built environment and Energy Efficiency,china Academy of Building Research,Beijing 100013,china) institute of Heat Pump and Air Conditioning Technology Harbin Institute of Technology Harbin 150090 China institute of Built environment and Energy Efficiency China Academy of Building Research Beijing 100013 China

This paper presented a preliminary research on the central solar heating system with seasonal storage(CSHSSS)used in cold climate in china.A mathematical model of the solar energy seasonal storage water tank used in the central solar heating system was firstly developed based on energy *** was followed by the simulation of the CSHSSS used in a two-floor villa in Harbin,and analysis of the impacts on storage water temperature of tank volume,solar collector area,tank burial depth,insulation thickness around the tank,*** results show there is a relatively economical tank volume to optimize the system efficiency,which decreases with increasing tank volume at the constant collector area,and increases with increasing collector area at the constant tank ***,the insulation thickness has obvious effect on avoiding heat loss,while the tank burial depth doesn'*** addition,the relationship between the solar collector efficiency and storage water temperature is also obtained,it decreases quickly with increasing storing water temperature,and then increases slowly after starting space heating *** may be helpful for relevant design and optimization in cold climates in china and all over the world.

关键词： central solar heating system with seasonal storage(CSHSSS) simulation system efficiency storage water tank villa

Framework and development of digital china

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Science china(Technological Sciences) 2008年第S1期51卷 1-5页

作者： WU Lun & TONG QingXi institute of Remote Sensing and Geographical Information Systems,Peking university,Beijing 100871,china institute of Remote Sensing and Geographical Information Systems Peking University Beijing China

Digital china (DC) has recently drawn much attention. It is a strategic project for china in response to the challenge of sustainable development of population,re-source,and environment. Intending to establish the national information infra-structure (NⅡ),the DC project forms a solid foundation for Chinese informatization. In such an NⅡ,multi-sourced spatial data are integrated. They focus on various themes and have different space and time features. Based on the NⅡ,numerous applications and services can be developed so that spatial information will benefit everyone. Since lots of organizations,such as governments,universities,and en-terprises,are involved in the implementation of DC,the DC project will significantly prompt the relevant scientific research as well as economic progress in china.

关键词： Digital Earth Digital china spatial information sciences and technology

Mechanical and Experimental Study of Sprinkling Water Cooling System on Roof of Shanghai Expo Theme Pavilion

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湖南大学学报（自然科学版） 2009年第S1期36卷 156-159页

作者： ZHAO Hui-zhong1,HUANG Chen1,LI Wei-xiang2,SHI Jin-yue2,TAO Si-yuan1,WANG Qian1,WANG Yu-qing1,ZHANG Min3(1.College of Urban Construction and environment Engineering,university of Shanghai for Science and Technology,Shanghai 200093,china 2.Architectural Design & Research institute of Tongji university,Shanghai 200092,china 3.College of Food Science Technology,Shanghai Ocean university,Shanghai 201306,china) College of Urban Construction and environment Engineering University of Shanghai for Science and Technology Shanghai 200093 China Architectural Design and Research institute Tongji University Shanghai 200092 China College of Food Science Technology Shanghai Ocean University Shanghai 201306 China

Based on the similarity theory,a scale effect model of the spraying water cooling system of Shanghai expo Theme Pavilion's roof was set *** to the typical weather conditions in Shanghai city,different models were analyzed on solar radiation,and different heat transfer amount was *** the following conclusions could be made:At the sunny day of summer in Shanghai,the temperature of inner roof with sprinkling system descended about 3 ℃,and the air conditioning load of the whole Theme Pavilion descend more than 320 kW.

关键词： Shanghai expo large space atrium solar radiation roof sprinkling system similarity theory prototype

Bulk single crystal growth of SiGe by PMCZ method

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Rare Metals 2003年第3期22卷 197-201页

作者： ZHANG Weilian, NIU Xinhuan, CHEN Hongjian, ZHANG Jianxin, SUN Junsheng, and ZHANG EnhuaiSemiconductor Material institute, Hebei university of Technology, Tian jin 300130, china Semiconductor Material institute Hebei University of Technology 天津 300130

A new type of magnetic device was used to replace the conventionalelectro-magnetic field for CZSi (doped with Ge) growth. The device was composed of three permanentmagnetic rings and called PMCZ device. The lines of magnetic force are horizontally distributed atradial 360℃. Using the ring permanent magnetic field, thermal convection in melt and centrifugalpumping flows due to crystal rotation could be strongly suppressed so that the fluctuations oftemperature and micro-growth rate at solid/liquid interface could be restrained effectively. In thePMCZ condition, the growing environment of SiGe bulk single crystal was similar to the crystalgrowth in space under the condition of micro-gravity. The motion of impurities (Ge, oxygen, etc.)had been controlled by diffusion near the solid/liquid interface. Oxygen concentration became lowerand the distribution of composition became more homogeneous along longitudinal direction and acrossa radial section in the grown SiGe crystal. The mechanism of PMCZ superior to MCZ was alsodiscussed.

关键词： SiGe single crystal composition homogeneous PMCZ thermal convection crystal growth

Analysis for Possible Source(s) of Bacteria Contamination of Ready-to-Eat Meat Products in Processing and Selling in Big Supermarket of nanjing,china

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Analysis for Possible Source(s) of Bacteria Contamination of...

Lattice-based artificial endocrine system model and its application in robotic swarms

2012年环境污染与大众健康学术会议

作者： Shi Ruofu 1,2 , Sun Guiju 1 (responding author), Wang Shaokang 1 , Huang zongjun 2 , Chen Guowei 1 1 Key Laboratory of environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Medical College, Southeast university nanjing, P.R.china 2 environment and Bioengineering institute nanjing university of Science and Technology nanjing, P.R.china

8 kinds of ready-to-eat (RTE) meat products, including Stewed Duck Gizzard, Saline Chicken Claws, Soy Sauced Chicken Wings, Spiced Beef, Sweet and Sour Spareribs, Meatball, Melopsittacus Packages of Meat, Braised Trotter in Red Sauce were collected from four large-scale supermarkets located in nanjing, china. To analysis possible sources of bacteria contamination of RTE food during the processing and subsequent selling,knives, chopping boards, trays, shovels, air, water and cotton swab of hands of sales staff were sampled, the total number of colonies, coliform, salmonella, Shigella, and Staphylococcus Aureus count were determined. The results showed that these RTE foods were contaminated by bacteria at different levels, overall passing rate was 68.8%, the over-limit ratio of the total number of colonies was 17.5%, the over-limit ratio of coliform took up 18.8% according to the Chinese national standard GB2726-2005 (Hygienic standard for cooked meat products). With regard to pathogen, the detection ratios of salmonella and Staphylococcus Aureus were 4.2% and 2.1% respectively. The results also showed that the bacteria contamination of cooked food was caused by the falling bacteria in the air in the producing and selling space, the clamps, chopping boards, knives, container of food and the hands of the operators. The total number of colonies in meat products positively correlated with the amount of cooked meat in the one pot (r=0.87728, P=0.0217), and negatively correlated with the maximum temperature in the center of the meat (r =-0.81633, P =0.0475). During the sales process of RTE foods, the passing rate was decreasing with the time, which the passing rate was just 60.6% at 4h. Our results suggest that the hygiene condition of selling in supermarket needed to be improved. The problem is to strengthen food safety education to employees and enhance their hygiene consciousness. Meanwhile the government should formulate the homemade cooked meat hygiene regulations and

关键词： Sources of contamination RTE meat products Processing and selling Supermarket Funded by Jiang Su Province Soft Science Program (BR2004512 and BR2006020)

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Science china(Information Sciences) 2011年第4期54卷 795-811页

作者： XU QingZheng 1,2 & WANG Lei 1 1 School of Computer Science and Engineering,Xi’an university of Technology,Xi’an 710048,china 2 Xi’an Communication institute,Xi’an 710106,china School of Computer Science and Engineering Xi’an University of Technology Xi’an China Xi’an Communication institute Xi’an China

To solve the problem of controlling robot swarms in a distributed manner,we propose a novel latticebased artificial endocrine system (LAES) model,inspired by modern endocrinology *** on a latticed environment,relying on cell intelligentization,connected by cumulative hormones,and directed by target cells,the LAES model can finally adapt to the continuous volatility of the external environment and maintain the relevant stability of the internal dynamics of the system,thus exhibiting the self-organizing and self-repairing features of the biological endocrine *** show that the LAES model enables a robotic swarm to search an unfamiliar space and seize multiple targets automatically without using unique global identifiers or a centralized control strategy for the individual *** demonstrates that the model can reliably be used to simulate large scale swarm behavior through wireless communication.

关键词： artificial endocrine system robotic swarms endocrine cell hormone self organization self repair searching and seizing