2010 International Conference on Challenges in Environmental Science and Computer Engineering最新文献_第4页

Vector Control Speed of EV AC Motor Based on TM320LF2407A 基于TM320LF2407A的电动交流电机矢量调速

2010 International Conference on Challenges in Environmental Science and Computer Engineering Pub Date : 2010-03-06 DOI: 10.1109/CESCE.2010.197

Wang Xiao-feng, Xiao Jing, Huo Hai-lin

引用次数: 0

The Calculation of Effect and the Anticipant Estimation of Index's Value in Orthogonal Design 正交设计中效果的计算及指标值的预期估计

2010 International Conference on Challenges in Environmental Science and Computer Engineering Pub Date : 2010-03-06 DOI: 10.1109/CESCE.2010.99

Wei Xiaoling, Zhao Qiang, L. Zhimin

引用次数: 0

Restoration of Degraded Ecosystem: A Pathway to Sustainability 退化生态系统的恢复:一条通往可持续性的道路

2010 International Conference on Challenges in Environmental Science and Computer Engineering Pub Date : 2010-03-06 DOI: 10.1109/CESCE.2010.8

Bin Zhang

引用次数: 0

Numerical Simulation of Making Hydrogen from Rich Filtration Combustion of Hydrogen Sulfide 硫化氢富过滤燃烧制氢的数值模拟

2010 International Conference on Challenges in Environmental Science and Computer Engineering Pub Date : 2010-03-06 DOI: 10.1109/CESCE.2010.52

Li Guoneng

{"title":"Numerical Simulation of Making Hydrogen from Rich Filtration Combustion of Hydrogen Sulfide","authors":"Li Guoneng","doi":"10.1109/CESCE.2010.52","DOIUrl":"https://doi.org/10.1109/CESCE.2010.52","url":null,"abstract":"Filtration combustion in porous media offers good advantages such as super-adiabatic combustion temperature in making hydrogen from hydrogen sulfur which is extremely toxic and is vastly produced in industry. In order to study the mechanism of making hydrogen from rich filtration combustion of hydrogen sulfur, computational fluid dynamics (CFD) were employed combining with a detail H2S oxidation mechanism to model the filtration combustion of hydrogen sulfide in a packed bed of uniform 3 mm diameter alumina spherical particles. The standard k-e turbulence model and a detail H2S oxidation mechanism with 17 species and 57 elemental reactions were adopted, and several equivalence ratios phi (1.0-4.0) were investigated. The numerical results agreed well with the experimental data, indicating that the combination of CFD with detail chemical kinetics gives good performance in modeling the anisotropic filtration flames. The combustion temperature exceeds the theoretical adiabatic combustion temperature by over 300 K, offering high temperature to decompose the hydrogen sulfide to hydrogen up to a conversion rate of 20%. On the other hand, the simulated combustion temperatures were relatively lower than the experimental data, resulting that much more un-burnt H2S (3.6% in simulation and 2.2% in experiment when phi=2.0) existed at the outlet. However, the predicted hydrogen concentrations were larger (3.3% in simulation and 2.0% in experimental when phi=2.0) than those measured in experiment.","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"36 1","pages":"335-338"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84671346","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}

引用次数: 0

Effect of Substrate Concentration on Methane Fermentation of Cattle Dung 底物浓度对牛粪甲烷发酵的影响

2010 International Conference on Challenges in Environmental Science and Computer Engineering Pub Date : 2010-03-06 DOI: 10.1109/CESCE.2010.245

J. A. Kumar, He Junguo, Li Jianzheng, Zheng Guocheng

{"title":"Effect of Substrate Concentration on Methane Fermentation of Cattle Dung","authors":"J. A. Kumar, He Junguo, Li Jianzheng, Zheng Guocheng","doi":"10.1109/CESCE.2010.245","DOIUrl":"https://doi.org/10.1109/CESCE.2010.245","url":null,"abstract":"Methane fermentation of cattle manure (CM) with different total solid contents were conducted in the laboratory-scale batch reactors (2.5 L volume) in order to determine the substrate concentration performance and potential energy recovery at the optimal mesophilic (35 oC) and thermophilic (55 oC) temperatures. The three reactors containing CM and water in the ratios (w/w) of 1:1 (wet fermentation), 2:1 and 1:0 (undiluted manure, dry fermentation) were utilized for the both conditions. The work was performed for a period of 63 days to compare the volatile solids and dissolved organic carbon degradation, COD removal, and VFAs. The results showed that the specific biogas yields, in terms of per kilogram of CM, were 41.68, 43.72 and 44.98 L/kg with 22.61, 23.69 and 24.96 L/kg methane contents respectively for the ratios of 1:1, 2:1 and 1:0 at 35 oC, while 43.03, 44.89 and 45.71 L/kg biogas with 23.45, 24.15 and 25.57 L/kg methane contents respectively for the ratios 1:1, 2:1 and 1:0 at 55 oC. The volume of the digester was increased in the wet fermentation for the same loading rate. Though water and thermophilic condition could promote the startup process and the biodegradability of the substrate, the total biogas and methane yields in the dry fermentation were found comparable to the conventional process (wet fermentation).","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"11 1","pages":"512-515"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85248594","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}

引用次数: 11

An Approach for Stereo Matching Using Pair-wise Sequence Alignment Algorithm Based on Dynamic Programming 基于动态规划的成对序列对齐立体匹配方法

2010 International Conference on Challenges in Environmental Science and Computer Engineering Pub Date : 2010-03-06 DOI: 10.1109/CESCE.2010.207

Shi Wanli, Wang Hongyong

{"title":"An Approach for Stereo Matching Using Pair-wise Sequence Alignment Algorithm Based on Dynamic Programming","authors":"Shi Wanli, Wang Hongyong","doi":"10.1109/CESCE.2010.207","DOIUrl":"https://doi.org/10.1109/CESCE.2010.207","url":null,"abstract":"We present a practical and efficient stereo matching approach which produces a dense disparity map with the pair-wise sequence alignment algorithm based on dynamic programming in this paper. Firstly, pair-wise sequence alignment algorithm based on the dynamic programming is introduced where the optimal alignment of two sequences could be acquired by tracing back the similarity matrix which is constructed according to characters in two sequences using dynamic programming algorithm. Second, we think of pixel gray value of all homonymy epipolar lines in two images in turn as two string sequences, and then disparity of corresponding point in two images is calculated by the number of gaps inserted the optimal alignment in every two string sequences. Additionally, according to epipolar constraint we can know that homonymy epipolar lines in two images parallel to the scan-lines, so the 2D matching of images is simplified to that of 1D. The experiment result shows that the proposed approach is stable and efficient, and it has a high matching accuracy and low computational complexity.","PeriodicalId":6371,"journal":{"name":"2010 International Conference on Challenges in Environmental Science and Computer Engineering","volume":"31 1","pages":"511-514"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83713581","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}

引用次数: 3

Treatment of Wine Distillery Wastewater Using an Anaerobic Moving Bed Biofilm Reactor with Low Density of Polyethylene Support 低密度聚乙烯载体厌氧移动床生物膜反应器处理酿酒废水

2010 International Conference on Challenges in Environmental Science and Computer Engineering Pub Date : 2010-03-06 DOI: 10.1109/CESCE.2010.229

C. Sheli, R. Moletta

引用次数: 4

Research on Protection of Water Resource in Jiangxi Province 江西省水资源保护研究

2010 International Conference on Challenges in Environmental Science and Computer Engineering Pub Date : 2010-03-06 DOI: 10.1109/CESCE.2010.32

J. Gong, Dunyin Wu, Zhongwen Yu

引用次数: 0

Principles and Practice of Computer-Assisted Draft Object Modelling 计算机辅助草图对象建模的原理与实践

2010 International Conference on Challenges in Environmental Science and Computer Engineering Pub Date : 2010-03-06 DOI: 10.1109/CESCE.2010.243

Shi Yong-qiang, Hu Wei-hua, Xu Ming, Wu Peng, Zhou Qi-li

引用次数: 0

The Building of Network Security Situation Evaluation and Prediction Model Based on Grey Theory 基于灰色理论的网络安全态势评估与预测模型的构建

2010 International Conference on Challenges in Environmental Science and Computer Engineering Pub Date : 2010-03-06 DOI: 10.1109/CESCE.2010.271

Jianfeng Dong

引用次数: 7