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2010 5th International Conference on Critical Infrastructure, CRIS 2010

作者： Ma, Jing Wang, Tong Wu, Jie Wang, Zengping Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control Ministry of Education North China Electric Power University 102206 Beijing China State Nuclear Electric Power Planning Design and Research Institute 100094 Beijing China

ISBN: (纸本)9781424480814

Digital based data processing and protection and control system along with digital communication networks introduces new structures for substation protection and control systems and new methods for intelligent protection and control systems. This paper presents a unique vision for the future integration of protection and control systems. Firstly, the basic concept and configuration of the developed protection and control systems for smart substation is introduced. The features and functions of integrated protection and control systems for smart substation are then discussed and compared with that of the traditional substation in detail. © 2010 IEEE.

关键词： Data handling

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Nano-titanium dioxide (TiO2)-induced changes affecting Cu2+-mediated alterations in bacterium Bacillus subtilis and α-amylase

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Toxicological and Environmental Chemistry 2010年第10期92卷 1851-1856页

作者： Zhao, Yuxia Lin, Kuangfei Zhang, Wei State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and Technology Shanghai 200237 China

Titanium dioxide (TiO2) nanoparticles possess the potential to coexist with Copper (Cu2+) in soil. The individual and combined toxicity of these two chemicals was evaluated using the bacterium Bacillus subtilis, a known soil model bacterium. Cu2+ (6.25-50 μgmL-1) alone produced toxicity to bacteria as evidenced by the decreased cell viability and deceased α-amylase production. The addition of TiO2 (50 μgmL-1) enhanced the Cu2+-induced decrease in cell viability but elevated amylase activity. TiO2 did not markedly affect the growth rate and lag period. A primary cause of TiO2 increasing Cu2+ toxicity is presumed to be associated with hydroxyl radical formation, while increased amylase activity is considered to arise from Cu2+ facilitating TiO2 degradation ability. © 2010 Taylor & Francis.

关键词： Titanium dioxide

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Studies on sustainable transmission of Hyphantria cunea Nucleopolyhedrovirus (HcNPV) to host population

Studies on sustainable transmission of Hyphantria cunea Nucl...

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International Conference on the Efforts in Response to Forest-Related Natural Disasters-the 1st Forest Science Frum(首届森林科学论坛——应对森林自然灾害国际学术会议)

作者： Duan Yanli Qu Liangjian Zhang Yong'an Wang Yuzhu Xue Jianjie Chen Chuan Research Institute of Forest Ecology Environment and Protection CAF Key Laboratory of Forestry Protection State Forestry Administration Beijing100091 Center Station of Control and Quarantine of Forest

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Ecosystem services value of wetland in Suzhou Taihu Lake

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Ecological Economy 2010年第4期6卷 349-355页

作者： GU Li-xia WU Chang-nian PU Hui-min NAN Nan WU Jin-lian GUO Rong State Key Laboratory of Pollution Control ＆ Resource Reuse School of Enivonmetnnanjing UniversityNanjing 210093P.R.China Environmental Protection Agency of Wuzhong District Suzhou 215128P.R.China

Based on a comprehensive analysis on various classifications of natural resource values,this paper summarizes an ecological services system of constructed wetland(CW) ecosystems for the accounting of ecological economic *** the research,the wetland ecosystem services can be classified into six categories,that is waste treatment,food and material production,water supply,gas regulations,disturbance and water regulations,habitat and refuge *** decision making in terms of environmental economics for wetland construction,ecosystem services value for the wetland in Suzhou Taihu Lake National Tourist and Holiday Resort is accounted for 7,088,769 USD/yr through Environmental Economics *** services value of waste treatment is 825,000 USD/yr,that of food and material production is 1,430 USD/yr,that of water supply is 4,752,000 USD/yr,that of gas regulation is 2,251USD/yr,that of disturbance and water regulations is 1,3721 USD/yr,and that of habitat and refuge provision value is 1,494,367 USD/*** ecosystem services values of a pilot constructed wetland in Suzhou are compared with those of other wetlands as a mean and of a typical human-interfered wetland in Wenzhou of *** show that in both finite and infinite time horizons considered,the wetland in Suzhou Taihu Lake National Tourist and Holiday Resort has the largest services *** paper analyzes all the probability that may weaken the value of the Suzhou Taihu Wetland in order to provide some advices for the wetland protection.

关键词： Ecosystem services value Ecosystem services Suzhou Taihu Wetland

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Eco-toxicological effect of perfluorooctanoic acid on soil enzymatic activities

Eco-toxicological effect of perfluorooctanoic acid on soil e...

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The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

作者： Wei Zhang Kuang-fei Lin Yi-tao Long Xiong Li Li-li Liu School of Resource and Environmental Engineering East China University of Science and Technology State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process Shanghai China

The experiments were carried out indoors to observe and analyze the variations of urease, catalase, and phosphatase activities in soil samples with presence of PFOA. The results showed that during the incubation period, the urease activity could be significantly inhibited over a selected range of PFOA concentrations. As for the catalase and the phosphatase activities, they were first stimulated and then decreased with increasing PFOA concentration.

关键词： Soil Biochemistry Chemical analysis Risk management Chemical hazards Humans Monitoring Curve fitting Chemical technology protection

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Isolation, identification and characterization of an efficient phenanthrene-degrading bacterial strain

Isolation, identification and characterization of an efficie...

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The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

The degradation dynamics of phenanthrene in soil was studied. The half-life of phenanthrene in the non-sterilized contaminated soil was only 5.1 d, much shorter than the same in the sterilized soil. The dominant strain of phenanthrene microbial degradation was isolated and identified by 16S rDNA as Alcaligenes sp.;its growth and degradative capability were highest at 25 ℃ and pH of 7.0. Inoculation of the dominant strain to soil enhanced phenanthrene degradation, and faster degradation rates were observed with larger doses of the strain inoculated.

关键词： Microorganisms Capacitive sensors Soil Thermal degradation Temperature protection Pollution Biodegradation Detectors Chemical technology

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Polybrominated diphenyl ethers in lake sediments across the China Mainland

Polybrominated diphenyl ethers in lake sediments across the ...

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环境毒理与环境化学国际学术研讨会——亚太分会2010年会(SETAC Asia/Pacific2010)

作者： Jian-yang Guo Feng-chang Wu Hai-qing Liao State Key Laboratory of Environmental Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550002China State Environmental Protection Key Laboratory for Lake Pollution ControlResearch Center of Lake Eco-EnvironmentChinese Research Academy of Environmental SciencesBeijing 100012China

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Heavy metal concentrations of agricultural soils and vegetables from Dongguan, Guangdong

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Journal of Geographical Sciences 2010年第1期20卷 121-134页

作者： CAI Limei HUANG Lanchun ZHOU Yongzhang XU Zhencheng PENG Xiaochun YAO Ling＇ai ZHOU Yang PENG Ping＇an State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry CAS Guangzhou 510640 China Research Center of the Pearl River Delta Environmental Pollution and Control Guangzhou 510640 China South China Institute of Environmental Sciences Ministry of Environmental Protection Guangzhou 510655 China Center for Earth Environment and Resources Sun Yat-sen University Guangzhou 510275 China

A total of 118 of agricultural soil and 43 of vegetable samples were collected from Dongguan City, Guangdong, China. The spatial distribution, sources, accumulation characteristics and potential risk of heavy metals in the agricultural soils and vegetables were depicted in details by three different approaches, including total contents of eight metal elements in soils and vegetables, GIS maps and multivariate analysis of heavy metals in soils in the study. The results show that there are higher accumulation of heavy metals such as Cu, Zn, Ni, Pb, Cd and Hg in agricultural soils, and the contents of Pb （65.38 mg kg^-1） and Hg （0.24 mg kg^-1） are 1.82 and 2.82 times of the background contents of the corresponding heavy metals in soils of Guangdong Province, respectively. There are about 3.4% of Cu, 5.9% of Ni, 1.7% of Cd and 28% of Hg in all collected soil samples from all investigated sites which have overran the contents for heavy metals of the China Environmental Quality Standard for Soils （GB15618-1995, Grade Ⅱ）. The pollution characteristics of multi-metals in soils are mainly reflected by Hg. There are different sources to eight metal elements in soils, Cu, Zn, Ni Cr and As are predominantly derived from parent materials, and Pb, Hg and Cd are affected by anthropogenic activities. The spatial distribution shows that the Cu, Zn, Ni, Cr, Pb, As and Hg contents of agricultural soils are high in the west and low in the east, and Cd contents are high in the northwest, southeast and low in the southwest in Dongguan. The ratios of vegetable samples which Ni, Pb and As concentrations higher than the Maximum Levels of Contaminants in Foods （GB2762-2005） are 4.7%, 16.3% and 48.8%, respectively. The order of bio-concentration factors （BCF） of heavy metals in vegetables is Cd 〉 Zn 〉 Cu 〉 As 〉 Ni 〉 Hg 〉 Cr 〉 Pb. It is necessary to focus on potential risk of heavy metals for food safety and human＇s health from agricultural soils and vegetables in Dongguan City, Guangdong Prov

关键词： agricultural soil vegetable heavy metal pollution spatial distribution Dongguan

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The application of voltage direct detection method based on mathematical morphology in distribution network with DG

The application of voltage direct detection method based on ...

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IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： Peng Li Wei Wang Hongfen Cui Shuai Wang Xilei Yang Yishu Zhao Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Baoding Hebei China State Grid of China Technology College Jinan Shandong China

Distributed generation (DG) injects new vigor into the power system, but it sometimes brings unfavorable factors influencing the power quality of distribution network. In this paper, the Dynamic Voltage Restorer (DVR) is introduced to the distribution network to improve the power quality. In view of that the detection of voltage compensation is the key factor that influences the effect of voltage compensation, a voltage direct detection method based on mathematical morphology is proposed. Firstly, the positive-sequence voltage with harmonics can be extracted by the instantaneous sequence-component decomposer. And then the harmonics is filtered by mathematical morphology filter. Lastly, the control variable of voltage compensation needed by DVR can be calculated from the voltage direct-detecting algorithm. The simulation results show that this method has the characteristics of favorable accuracy, real-time performance and simplicity, and assures the voltage quality of load side after compensation by DVR.

关键词： Morphology Power quality Power system harmonics Power harmonic filters Active filters Voltage fluctuations Power system dynamics Voltage control Power generation Power system reliability

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Integration of protection and control systems for smart substation

Integration of protection and control systems for smart subs...

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International Conference on Critical Infrastructures, CRIS

作者： Jing Ma Tong Wang Jie Wu Zengping Wang Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Beijing China State Nuclear Electric Power Planning Design and Research Institute Beijing China

关键词： Substations control systems Local area networks Artificial intelligence Monitoring Power system reliability

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