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Eurocon

作者： Lidija M. Korunovic Dobrivoje P. Stojanovic Sladan Lj. Jovanovic School of Environmental and Municipal Engineering Lanzhou Jiaotong University Lanzhou China Department of Water Pollution Control Technology Chinese Research Academy of Environmental Sciences Beijing China

This paper presents the results of power quality research in low voltage distribution network of the second biggest city in Serbia, Nis. The research is based on the measurements in transformers stations 10/0.4 kV that supply different load classes and that are located in different parts of the city. Power quality indices - total and individual harmonic distortions, unbalance factor and RMS voltage variation are analysed and compared with IEEE Standard 519 and EN 50160 limits. The results are grouped and discussed according to load classes that considered transformer stations supply.

关键词： Power quality Cities and towns Transformers Power system harmonics Distortion measurement Power system reliability Low voltage Harmonic distortion Power system stability Power measurement

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Color removal and biodegradability enhancement of chemical pretreatment effluent of eucalyptus chemithermomechanical pulp (CTMP) by zero-valent iron

Color removal and biodegradability enhancement of chemical p...

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The 3rd International Conference on Bioinformatics and Biomedical engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)

作者： Li-rong LEI You-ming LI Xue-jin ZHANG State Key Laboratory of Pulp and Paper Engineering South China University of Technology National Engineering Research Center of Papermaking and Pollution ControlSouth China University of TechnologyNo.381 Wushan RoadGuangzhou510640P.R.China

Deep color and high concentration of organic compounds are the important characteristics of Chemithermomechanical pulp (CTMP) effluent. The objectives of this study are to investigate the feasibility of removing the color of eucalyptus CTMP chemical pretreatment effluent with zero-valent iron (Fe(0)) and to examine the effect of Fe(0) treatment on biodegradability enhancement of the effluent. The effect of operating conditions, including pH, reaction time, castiron filings dosage and size range, on color removal rate was discussed. Results showed that under certain conditions, color removal rate of the effluent reached about 90％. It was also found that chemical oxygen demand (COD) and 5 day biochemical oxygen demand (BOD5) of the effluent decreased evidently after zero-valent iron treatment, and BOD5/COD increased from 0.27 to 0.42, which indicated that biodegradability of the effluent was obviously enhanced. Based on the results, it is feasible that zerovalent iron can be used for pretreatment of CTMP effluent before biological treatment processes.

关键词： CTMP effluent color removal biodegradability zero-valent iron

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Routing Protocol for Wireless Sensor Networks in Home Automation

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IFAC Proceedings Volumes 2009年第3期42卷 27-33页

作者： Xiao Hui Li Hong Qin Xu Seung Ho Hong Zhi Wang Xiang Fan Piao Engineering Research Center of Metallurgical Automation and Measurement Technology Ministry of Education Wuhan University of Science and Technology Wuhan Hubei 430081 China State Key Laboratory of Industrial Control Technology Zhejiang University Hangzhou 310027 China Department of Electronics Information and System Engineering Hanyang University 425-791 Korea Department of Electronic Information Engineering College of Science and Engineering Yanbian University Yanji 133002 China

Home automation systems based on wireless sensor/actuator networks are characterized by diversity of node power sources, limited computational power, and mobility. We propose a routing protocol that fully uses the location of static nodes to limit the search for a route to a small zone based on the analysis of characteristics and requirements. The calculation of two different kinds of zone and the route discovery procedure are described in this paper. According to the environment of home automation, we compared the performance of our routing protocols with the ad-hoc on-demand distance-vector protocol using simulation and gave suggestions for zone selection. Simulation results showed that our routing protocol dramatically reduced the routing overhead and increased the reliability.

关键词： Wireless Sensor/Actuator Networks Home Automation Routing Protocol

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Scaling reduction of port-Hamiltonian systems for numerical calculation

Scaling reduction of port-Hamiltonian systems for numerical ...

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ICROS-SICE International Joint Conference 2009, ICCAS-SICE 2009

作者： Nishida, Gou Ichishima, Daiji Kashima, Kenji Fujimoto, Kenji Yamakita, Masaki Maschke, Bernhard Ikeura, Ryojun Robotic Motion Lab. Advanced Science Institute RIKEN Japan Research and Development Center Sumitomo Heavy Industries Ltd. Japan Department of Mechanical and Environmental Informatics Graduate School of Information Science and Engineering Tokyo Institute of Technology Japan Department of Mechanical Science and Engineering Graduate School of Engineering Nagoya University Japan Department of Mechanical and Control Systems Engineering Tokyo Institute of Technology Japan Laboratoire d'Automatique et de Génie des Procédés UMR CNRS 5007 Université Claude Bernard Lyon 1 France Department of Mechanical Engineering Mie University Denmark

ISBN: (纸本)9784907764333

We present a novel reduction method of port-Hamiltonian systems by a renormalization group. The reduced system is suitable for a fast numerical calculation in a mesoscopic scale. Especially, we aim at the development of renormalized molecular dynamics with controls. First, we define a renormalized Hamiltonian with coarse graining. Next, we introduce a renormalized canonical Hamiltonian system. Moreover, we clarify the relationship between the renormalized Hamiltonian system and a Dirac structure. Finally, we obtain necessary conditions of boundary connections for each renormalized Hamiltonian system with different scales. © 2009 SICE.

关键词： Hamiltonians

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Mass rapid transit scheme planning based on bi-level programming model

Mass rapid transit scheme planning based on bi-level program...

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2nd International Conference on Transportation engineering, ICTE 2009

作者： Sun, Yuxing Lian, Aiping Guan, Wei Li, Shilian Institute of Systems Engineering and Control School of Traffic and Transport Beijing Jiaotong University China National ITS Research Center Research Institute of Highway Ministry of Transport Key Laboratory of Technology on Intelligent Transportation Systems M.O.TNo. 8 Xi Tu Cheng Road Haidian District Beijing China Beijing Municipal Environmental Protection Bureau China

ISBN: (纸本)9780784410394

This paper puts forward the concept of Mass Rapid Transit including the existing rail transit system and the BRT system. For the Mass Rapid Transit planning framework study, on the basis of a detailed overview of research results at home and abroad, we will design a planning macro framework with coordinating the Mass Rapid Transit and conventional bus transit, and set up a basis of the macro framework for coordinated planning theory, integrating application of the bi-level programming theories and optimization methods. So, basing on the improving the bi-level programming theory, to address the key technical issues of the coordinated planning as much as possible, forming the macro-theoretical system for Mass Rapid Transit system planning. And finally it gives a probably solution method of the model. Copyright ASCE 2009.

关键词： Rapid transit

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Niches of plant populations in mangrove reserve of Qi’ao Island, Pearl River Estuary

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Acta Ecologica Sinica 2009年第6期29卷 357-361页

作者： Yisheng Peng Guizhu Chen Guanghong Tian Xiongbang Yang School of Environmental Science and Engineering/Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology Sun Yat-Sen University Guangzhou 510642 China Research Centre of Wetland Science Sun Yat-Sen University Guangzhou 510275 China Qi’ao-Dan Gan Provincial Nature Reserve Zhuhai 519000 China

Thirty-two 10 × 10 m 2 quadrats were set up in four mangrove communities for the study of the niches of nine plants with horizontal and vertical resource sequences in Dawei Bay, Qi’ao Island, Zhuhai City. Generally, species diversities of natural mangroves were higher than those of plantations. The diversities decreased along sequence of substrate layer, shrub layer and tree layer in natural mangroves; and were highest on the shrub layer in plantations. At the horizontal resource sequence, the niche breadth varied 0.132–0.896 ( B ( sw ) ) and 0.120–0.693 ( B ( L ) ). The niche breadth of Acanthus ilicifolius and Aegiceras corniculatum were the highest and that of Spartina alterniflora was the lowest. At the vertical resource sequence, the niche breadth varied 0–0.400 ( B ( sw ) ) and 0.333–0.747 ( B ( L ) ). All the niche breadth values were the lowest except those of A. ilicifolius and A. corniculatum . The niche similarity of the populations varied 0–0.746 and 0–1.000 at the horizontal and vertical resource sequences, respectively. A . ilicifolius and A . corniculatum had niche overlap with all plants at the horizontal resource sequence, while the introduced Sonneratia caseolaris and Sonneratia apetala had no such overlapping between six and five plants in the community, respectively. At the vertical resource sequence, A . ilicifolius and A . corniculatum had niche overlapping with all the populations. The more niche overlapping existed among the other populations. The results indicated that, currently, the mangrove plantation in Qi’ao Island had a simplex structure and composition of species. The status of plant populations’ niche was determined by the species selected and structure of afforestation. It is suggested to create forest gaps artificially and introduce Kandelia obovata saplings to reverse its current status of lower niche breadth, facilitate natural regeneration and spreading of A. corniculatum and A. ilicifolius , and accelerate the restoration p

关键词： Qi’ao Island Mangrove Plant population Niche breadth Niche overlap

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Weekend-Weekday differences in near-surface ozone concentrations in Chennai, South India

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International Journal of Environment and Waste Management 2009年第1-2期4卷 213-224页

作者： Pulikesi, M. Rayudu, V.N. Ramamurthi, V. Sivanesan, S. Petroleum Technology Research Center University of Regina Regina SK S4S 0A2 Canada Tamil Nadu Pollution Control Board Chennai 600 025 India Department of Chemical Engineering A.C. Tech. Anna University Chennai 600 025 India

The paper describes the weekend weekday differences in near-surface ozone (O3) concentration in Chennai, South India. The O3 data measured during 18 January 2006 to 28 February 2006 has been analysed. The result indicated no major difference between the weekdays and weekend profiles for the OSUB align=right3 concentrations. Further, oxides of nitrogen (NOx), carbon monoxide (CO), Suspended Particulate Matter (SPM), wind speed and direction data has also been analysed for the same period. It has been observed that the 24-hour average SPM concentrations exceeded the National Ambient Air Quality Standards (NAAQS) on 26 January 2006 (Thursday), which is a national holiday. Copyright © 2009, Inderscience Publishers.

关键词： Carbon monoxide

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Scaling reduction of port-Hamiltonian systems for numerical calculation

Scaling reduction of port-Hamiltonian systems for numerical ...

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SICE Annual Conference

作者： Gou Nishida Daiji Ichishima Kenji Kashima Kenji Fujimoto Masaki Yamakita Bernhard Maschke Ryojun Ikeura Robotic Motion Laboratory RTC Advanced Science Institute RIKEN Japan Research and Development Center Sumitomo Heany Industries Limited Japan Department of Mechanical and Environmental Informatics Graduate School of Information Science and Engineering Tokyo Institute of Technology Japan Department of Mechanical Science and Engineering Graduate School of Engineering University of Nagoya Japan Department of Mechanical and Control Systems Engineering Tokyo Institute of Technology Japan Laboratoire dAutomatique et de Génie des Procédés UMR CNRS 5007 Université Claude Bemard Lyon 1 France Department of Mechanical Engineering Mie University Japan

关键词： Microscopy Solids control systems Robot motion research and development Electrical equipment industry Informatics Information science Systems engineering and theory Mechanical engineering

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Review of water pollution control in China

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Frontiers of environmental Science & engineering 2008年第2期2卷 142-149页

作者： Tingyao GAO Hongbin CHEN Siqing XIA Zengyan ZHOU School of Environmental Science and Engineering Tongji UniversityShanghai 200092P.R.C National Engineering Research Center for Urban Pollution Control Tongji UniversityShanghai 200092

Water resource shortage and pollution has seriously threatened the survival and development of developing *** of China’s specific economical and social circumstances,complete adoption of developed countries’experience is *** present,China needs to develop strategies and technologies in source water pollution control and municipal environmental remediation that embrace the country’s specific need to battle the water resource *** them,efficient source water pretreatment is a critical step to ensure a safe municipal water *** developed countries,it is not yet feasible in China to treat water supplied to the household and have it meet the standard of direct drinking;therefore,it is more appropriate to refer to it as service *** a beneficial supplement,an additional community drinking water network and household drinking water apparatus can be considered.

关键词： municipal aquatic environmental pollution control water supply safety China

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PREPARATION AND CHARACTERIZATION OF POLYMER-BASED SPHERICAL ACTIVATED CARBONS

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Chinese Journal of Polymer Science 2008年第5期26卷 645-651页

作者：李爱民 State Key Laboratory of Pollution Control and Resource Reuse Jiangsu Engineering and Technology Research Center for Organic Toxicant Control and Resource ReuseSchool of the EnvironmentNanjing UniversityNanjing 210093China

A series of spherical activated carbons(SACs)with different pore structures were prepared from chloromethylated polydivinylbenzene by ZnCl_2 *** effects of activation temperature and retention time on the yield and textural properties of the resulting SACs were *** the SACs are generated with high yield of above 65% and exhibit relatively high mesopore fraction(me%)of 35.7%-43.6% compared with conventional activated *** sample zlc28 prepared at 800℃for 2 h has the largest BET surf...

关键词： Spherical activated carbon Polymer Chemical activation Pore structure Adsorption.

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