{"title":"Shunt Active Power Filter and Its Application","authors":"Jie Zhao, Wenjin Dai, Kai Wang","doi":"10.1109/CESCE.2010.208","DOIUrl":"https://doi.org/10.1109/CESCE.2010.208","url":null,"abstract":"With the extensive application of high-power switching devices, the quality of electric power is growing problem seriously, which causes the current (voltage) distortion, producing a large number of harmonics. This paper introduces the principle, structure, device development and the characteristics of active filter, and its application in power system applications. Currently, The key is to further enhance the application of levels of active filter in the production practice, and to promote scientific research transfer into Industrial Molded Products quickly.","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"22 1","pages":"373-376"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77987165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study on the Problems and Their Mechanisms of Water Environment in Xinjiang","authors":"Zhang Zhong-wu, Yang Degang, Zhang Yueqin","doi":"10.1109/CESCE.2010.286","DOIUrl":"https://doi.org/10.1109/CESCE.2010.286","url":null,"abstract":"This paper analyzes the problems and trends of water environment and mechanisms of the problems by Ridit Analysis and other qualitative and quantitative analysis methods with water monitoring data and economical data in Xinjiang in 2001-2006. The results show: (1)water qualities of rivers of Xinjiang are slightly pollution and that of Northern is more serious than that of southern in Xinjiang, and water qualities of rivers far from urban are better than those across urban. The trend of water quality change of river is stable in 2001-2006. (2) Water qualities of lakes and reservoirs are middle level pollution, and water quality of lakes is better than that of reservoirs. The trend of water quality change of lakes and reservoirs are stable. (3) Water qualities of drinking-water source are good totally and its trend of changes is stable. Quality of groundwater of Urumqi city is badly, and its trend of changes is stable. The main reasons leading to water environment problems are: (1) industrial structure are heavy that cause larger pollution water.(2) Economy of Xinjiang is in the Stage of rapid developing that requires excess water. (3)Urban infrastructure is weak. (4) Pollution of rural is heavy, and (5) protractions of drinking-water source is not well.","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"17 1","pages":"438-441"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85389106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Test on EM Bacteria Applied in Treating Landscape Water","authors":"Weiping Wang, Pin Liu, Peipei Zhang, Haiwei Zhang","doi":"10.1109/CESCE.2010.102","DOIUrl":"https://doi.org/10.1109/CESCE.2010.102","url":null,"abstract":"Taking domestic sewage as the research object, through adding different amount of EM bacteria culture medium to the sewage and EM rejuvenation bacteria which cultivated by combining immobilization technology, wastewater treatment mechanism of EM bacteria was explored, and the treatment effect of COD, ammonia nitrogen and total phophorus was observed as well as the best collecting volume. The results showed that EM rejuvenation bacteria is better than pure EM culture medium on the removal rate of ammonia nitrogen, total phosphorus and COD in wastewater, furthermore removal efficiency by 35 mesh rejuvenation bacteria is higher than 120 mesh.","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"37 1","pages":"200-203"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83415827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bioethanol Production Based on Simultaneous Saccharification and Fermentation of Wheat Straw","authors":"Peng Luo, Zhong Liu","doi":"10.1109/CESCE.2010.191","DOIUrl":"https://doi.org/10.1109/CESCE.2010.191","url":null,"abstract":"The potential of wheat straw as raw materials for ethanol production was investigated. Ethanol cooking at 190 ¿ for 60 min was adopted as pretreatment method for dilute sulfuric acid impregnated wheat straw. The pretreated wheat straw was used as substrate for the production of ethanol by simultaneous saccharification and fermentation (SSF) through orthogonal experiment design in the present study. The in¿uence of different parameters in SSF, such as reaction temperature, substrate concentration, initial medium pH and enzyme concentration, on the ethanol concentration and yield was investigated and the SSF conditions were optimized. The ranking, from high to low, of influential extent of the SSF affecting factors to ethanol concentration and yield was substrate concentration, enzyme loading, initial fermentation liquid pH value, reaction temperature, orderly. The optimum SSF condition was 35¿ for reaction temperature, 100 gl-1 for substrate concentration, 5.0 for initial fermentation liquid pH value, 30 FPUg-1 for enzyme loading. Under the optimum SSF condition, 23.1 gl-1 of the ethanol concentration and 68.2% of the ethanol yield were obtained respectively after 72 h.","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"4 1","pages":"48-51"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88702258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Constructing Integrated Solution for Performance Management with Office PerformancePoint Server 2007","authors":"Zhijun Ren","doi":"10.1109/CESCE.2010.184","DOIUrl":"https://doi.org/10.1109/CESCE.2010.184","url":null,"abstract":"This paper describes PerformancePoint Server, discusses its three capabilities for performance management, and finally, gives out integrated solution for performance management with Office PerformancePoint Server 2007.","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"21 1","pages":"282-285"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91540976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Progress in Water Quality Monitoring Based on Remote Sensing and GIS","authors":"Fengyun Mu","doi":"10.1109/CESCE.2010.246","DOIUrl":"https://doi.org/10.1109/CESCE.2010.246","url":null,"abstract":"This paper reviews the progress of the application of RS and GIS integration technology and the design of integration system in water quality monitoring domain. Key aspects of available remote sensing techniques and the present application domain of water quality monitoring by remote sensing applications are briefly summarized. Special attention has been focused on the main principles of using remote sensing to monitor water quality, and the main retrieved algorithms and available sataellite data sources. Recent advances are examined and limitations of water environment remote sensing and the future research prospect are discussed.","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"86 12","pages":"208-211"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91466892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Utilization of Wheat Straw in Manufacture of Particleboard","authors":"Peng Luo, C. Yang","doi":"10.1109/CESCE.2010.195","DOIUrl":"https://doi.org/10.1109/CESCE.2010.195","url":null,"abstract":"Wheat straw is one of the most abundant and cheap agricultural wastes, and it is estimated that about 250 million tons are produced annually in China. Wheat straw is predominantly disposed of by direct burning in open field due to lack of e¿ective utilization, which also causes serious environmental pollution. It is an important issue to deal with the agricultural waste both for the comprehensive utilization of lignocellulosic resources and for the prevention of environmental pollution. The aim of the present work was to investigate the suitability of wheat straw as a raw material for particleboard. In this study, phenol–formaldehyde resin was modified with polyisocyanate as an adhesive for wheat straw particleboard preparation. Orthogonal experiment design was used to study the effects of hot-press temperature, hot-press time, resin application ratio, and wax application ratio on mechanical and water soaking properties of the wheat straw particleboard. Results showed that hot-press temperature was the dominant in¿uencing factor. Mechanical and soaking properties improved as hot-press temperature increased and reached their highest point at 160¿. Hot-press time, resin application ratio, and wax application ratio also had a significant effect on mechanical and water soaking properties of the board. The optimum manufacture condition was 160¿ for hot-press temperature, 6 min for hot-press time, 20% for resin application ratio, 0.7% for wax application ratio. Under the optimum condition, 11.9 Mpa of the modulus of rupture, 0.30 Mpa of the internal bond and 4.8% of the thickness swell were obtained, higher than the requirement of JIS A 5908.","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"20 1","pages":"52-54"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87473883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Research of Accurate Software Timing Based on Windows","authors":"Fengjuan Cheng, Hui Yin, Qing-hui Zhang, De-xian Zhang","doi":"10.1109/CESCE.2010.225","DOIUrl":"https://doi.org/10.1109/CESCE.2010.225","url":null,"abstract":"Several types of highly accurate software and hardware timing methods provided by Windows system are introduced. The implement of every method is discussed in detail. In addition, combing their application, the programme instances are offered.","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"9 1","pages":"104-106"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78223832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Web-Based Environmental Education Mode","authors":"Zhong Yexi","doi":"10.1109/CESCE.2010.82","DOIUrl":"https://doi.org/10.1109/CESCE.2010.82","url":null,"abstract":"The goal of the environmental education should not merely train students' environmental knowledge, the more important thing is that it trains students' environmental morals and forms the behavior which is favorable to the environment, and these can only be formed by practice in real life. In the traditional teaching model of practice, one teacher can only guide one practice at the same time. With the development of network technology, teacher can guide the different practice activities starting up in different locations or in different times by network. Based on the integration of practical need and interactive characteristics of environment education, the author put forward a web-based environment education mode named “practice-interactive- participate in”. The Core of this mode is to train students’ environmental morals by practice and to realize teachers’ instruction through network. It also integrated the practical demand of environmental education and interactive characteristic of network teaching. This mode of teaching includes three parts: \"Walk close to the nature --The cognitive education of environment \", “Experience the nature --Attitude and affective education \", “Protect the nature --The education of environmental behavior\".","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"55 1","pages":"174-177"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78718830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Trihalomethanes Formation in Water Distribution Systems: The Laboratory Analog Experiments and Analysis","authors":"L. Mou, L. Hongyan, Wang Menglin","doi":"10.1109/CESCE.2010.205","DOIUrl":"https://doi.org/10.1109/CESCE.2010.205","url":null,"abstract":"Chlorination of drinking water leads to the formation of trihalomethanes (THMs) that has been proved have adverse health effects on humans. Research on this subject has been continued and new epidemiological and toxicological studies have been conducted. In this paper, authors investigate and analyze factors affecting THMs formation in pipe networks by conducting corresponding experiments on a close small-scale water supply system in lab. The main factors affecting THMs formation such as chlorine and humic acid concentration was measured and controlled in the system for identifying their effects. According the experiment results, solutions of minimizing the amounts of THMs in municipal distribution systems are posted.","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"47 1","pages":"88-91"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86011241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}