Y. Ming, Zhu Weiyao, Song Hong-qing, Yang Jiaosheng
A mathematical model for transport of coal bed methane(CBM) was presented, taking into account low-velocity non-Darcy flow behavior and coupling of methane desorption from coal matrix and diffusion from matrix into cleats. Under several simplifying assumptions, a simple calculation method for control area of single wells was proposed. Low-velocity non-Darcy flow behavior was characterized by pseudo threshold pressure gradient (PTPG). Numerical results show that both PTPG and desorption rate have a significant impact on determination of control radius. PTPG has a negative effect on the deployment of the peripheral reserves. Increasing PTPG would result in fewer control area. In the contrast, increasing desorption rate would lead to larger control area. The calculation method would provide engineers a better understanding of development of CBM.
{"title":"Mathematical Model for Low-Velocity Flow of Coal Bed Methane in Low-Permeability Reservoirs","authors":"Y. Ming, Zhu Weiyao, Song Hong-qing, Yang Jiaosheng","doi":"10.1109/ICDMA.2013.182","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.182","url":null,"abstract":"A mathematical model for transport of coal bed methane(CBM) was presented, taking into account low-velocity non-Darcy flow behavior and coupling of methane desorption from coal matrix and diffusion from matrix into cleats. Under several simplifying assumptions, a simple calculation method for control area of single wells was proposed. Low-velocity non-Darcy flow behavior was characterized by pseudo threshold pressure gradient (PTPG). Numerical results show that both PTPG and desorption rate have a significant impact on determination of control radius. PTPG has a negative effect on the deployment of the peripheral reserves. Increasing PTPG would result in fewer control area. In the contrast, increasing desorption rate would lead to larger control area. The calculation method would provide engineers a better understanding of development of CBM.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115556983","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}
The paper talks about a research on a fast growing Chinese city. It reviews the international urban planning competition for the new urban area in Shunde, and compares the different technical approaches to look at the future development of a post-industrial city. To compare them with a study on the current local urban issues, and to find out the philosophies behind the morphologies, is the main purpose of the paper.
{"title":"Revising Shunde: The Different Technical Approaches to the Future of a Large Chinese City","authors":"Haohao Xu","doi":"10.1109/ICDMA.2013.276","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.276","url":null,"abstract":"The paper talks about a research on a fast growing Chinese city. It reviews the international urban planning competition for the new urban area in Shunde, and compares the different technical approaches to look at the future development of a post-industrial city. To compare them with a study on the current local urban issues, and to find out the philosophies behind the morphologies, is the main purpose of the paper.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124717001","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}
Aiming at entrance bucket at different installation site, inner flow field of diffuser was simulated and analyzed, get graphs of static pressure coefficient (Cp), atmospheric pressure coefficient (Cpa) and efficiency (n). Though analysis and get rule of performance of diffuser aim at entrance bucket at different installation site, the rule provides theoretical foundation on design of fanner diffuser.
{"title":"Numerical Analysis on Performance of Diffuser Aim at Entrance Bucket at Different Installation Site","authors":"Zhu Xiuchuan","doi":"10.1109/ICDMA.2013.199","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.199","url":null,"abstract":"Aiming at entrance bucket at different installation site, inner flow field of diffuser was simulated and analyzed, get graphs of static pressure coefficient (Cp), atmospheric pressure coefficient (Cpa) and efficiency (n). Though analysis and get rule of performance of diffuser aim at entrance bucket at different installation site, the rule provides theoretical foundation on design of fanner diffuser.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123838179","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}
Solving the Job shop Scheduling problem, the design is based on Particle Swarm Optimization and Taboo Search which is a fast algorithm, And in this algorithm, bring in particle swarm strategy and taboo search strategy, A hybrid intelligence algorithm based on Particle Swarm algorithm and the taboo Search algorithm(TS-PSO) is designed. It overcomes particle swarm optimization algorithm in solving combinatorial optimization problem, and better to avoid the tabu search algorithm falling into local optimum, and convergence speed has also been increased. Through particle swarm and taboo search algorithm combined, the results show that this algorithm has very good accuracy of convergence, and is feasible, and compared with the traditional scheduling algorithm, Embodies the obvious superiority.
{"title":"Based on Tabu Search and Particle Swarm Optimization Algorithms Solving Job Shop Scheduling Optimization Problems","authors":"Liang Xu, Li Yanpeng, Jiao Xuan","doi":"10.1109/ICDMA.2013.78","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.78","url":null,"abstract":"Solving the Job shop Scheduling problem, the design is based on Particle Swarm Optimization and Taboo Search which is a fast algorithm, And in this algorithm, bring in particle swarm strategy and taboo search strategy, A hybrid intelligence algorithm based on Particle Swarm algorithm and the taboo Search algorithm(TS-PSO) is designed. It overcomes particle swarm optimization algorithm in solving combinatorial optimization problem, and better to avoid the tabu search algorithm falling into local optimum, and convergence speed has also been increased. Through particle swarm and taboo search algorithm combined, the results show that this algorithm has very good accuracy of convergence, and is feasible, and compared with the traditional scheduling algorithm, Embodies the obvious superiority.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123945503","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}
Z. Yunpeng, Liu Jingliang, An Xiong, Geng Jie, Chen Shuping
A concept of an intelligent stereo garage that lifts the cars between floors is established to increase the utilization and to reduce the manufacture cost of this intelligent stereo garage. The method that a car-picking mechanism shared by several parking floors is used in this garage, which increased the utilization of the garage over 1.2. A four-grade serial mechanism which moves between parking floors and picks up the car is designed. The control system is designed simultaneously to meet up with the requirements of storing and picking up the car automatically. In order to improve the design of the garage, a scaled model of this garage is made and the function of parking cars automatically with high utilization is verified.
{"title":"A Design of One Kind Spring Layer Lift Intelligent Garage","authors":"Z. Yunpeng, Liu Jingliang, An Xiong, Geng Jie, Chen Shuping","doi":"10.1109/ICDMA.2013.7","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.7","url":null,"abstract":"A concept of an intelligent stereo garage that lifts the cars between floors is established to increase the utilization and to reduce the manufacture cost of this intelligent stereo garage. The method that a car-picking mechanism shared by several parking floors is used in this garage, which increased the utilization of the garage over 1.2. A four-grade serial mechanism which moves between parking floors and picks up the car is designed. The control system is designed simultaneously to meet up with the requirements of storing and picking up the car automatically. In order to improve the design of the garage, a scaled model of this garage is made and the function of parking cars automatically with high utilization is verified.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124000668","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}
T. Bin, Xiao Ying, Zhu Bing, Peng Xuange, Leng Ming
In recent years the view of Jinggangshan is enchanting by its unique mountainous landscape and revolutionary cradle, which offers many attractions for tourists at home and abroad. Develop continuously along with the tourism industry, the blind development of land resources in the drive for economic interests has been leading to serious degradation of its land ecosystem mountainous and causing serious crisis of land ecological. So establishing and completing the early warning of regional land ecological security is a fundamental act to keep away the land ecosystem deteriorating. Through analyzing the evolution law of Jinggangshan land ecological security, a systematic index system of the special landforms state of Jinggangshan for the early warning indicators is presented, and then, the corresponding evaluation models are established by using the analytic hierarchy process.
{"title":"Research on Prediction Model of Land Ecological Security in Jinggangshan Nature Reserve","authors":"T. Bin, Xiao Ying, Zhu Bing, Peng Xuange, Leng Ming","doi":"10.1109/ICDMA.2013.262","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.262","url":null,"abstract":"In recent years the view of Jinggangshan is enchanting by its unique mountainous landscape and revolutionary cradle, which offers many attractions for tourists at home and abroad. Develop continuously along with the tourism industry, the blind development of land resources in the drive for economic interests has been leading to serious degradation of its land ecosystem mountainous and causing serious crisis of land ecological. So establishing and completing the early warning of regional land ecological security is a fundamental act to keep away the land ecosystem deteriorating. Through analyzing the evolution law of Jinggangshan land ecological security, a systematic index system of the special landforms state of Jinggangshan for the early warning indicators is presented, and then, the corresponding evaluation models are established by using the analytic hierarchy process.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"180 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122324480","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}
42 counties in Central Yunnan Economic Zone was regard as research unit in this paper. Principal Component Analysis and the evaluation models of the coordination degree have been used to analyze spatial pattern and time variation characteristics, which include both the county economic development level and the coordination degree of county economic development level and water resource in Central Yunnan Economic Zone. The result shows: (1)From 1999 to 2009, the difference of county economic development level has enlarged as if waves. The spatial structure in this region evolved from pole nucleus type to Pole-axis type gradually. At the same time, The difference of coordination has been gradually enlarged.(2)For the coordinated development of all regions, some measures should be taken such as strengthening the radiation effect of growth poles, optimizing the regional spatial structure and promoting the coordinated development of industrial structure.
{"title":"Studies on the Differences of County Economic Development Level and the Water Resources Coordination in Central Yunnan Economic Zone","authors":"N. Lede, Xiong Liran, Hu Honglian, He Caiping","doi":"10.1109/ICDMA.2013.293","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.293","url":null,"abstract":"42 counties in Central Yunnan Economic Zone was regard as research unit in this paper. Principal Component Analysis and the evaluation models of the coordination degree have been used to analyze spatial pattern and time variation characteristics, which include both the county economic development level and the coordination degree of county economic development level and water resource in Central Yunnan Economic Zone. The result shows: (1)From 1999 to 2009, the difference of county economic development level has enlarged as if waves. The spatial structure in this region evolved from pole nucleus type to Pole-axis type gradually. At the same time, The difference of coordination has been gradually enlarged.(2)For the coordinated development of all regions, some measures should be taken such as strengthening the radiation effect of growth poles, optimizing the regional spatial structure and promoting the coordinated development of industrial structure.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128887200","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}
This paper takes the VRLA battery cell as the research object, to solve real-time estimation problem of the electric vehicle power battery's state of charge(SOC) in working status, proposes a new estimation method. Through the measurement of a periodic constant current load's work battery, get a series of working voltage, using phase-slope calculation method based on the working voltage at this time, calculating the battery's time remaining and SOC. This method proved the feasibility of the dynamic working point can be mapped to the static working point, and the largest relative error is no more than 7%. Through the software implementation can compensate temperature, aging and other interference factors. Error analysis results show that this method has small error, high measurement precision.
{"title":"Estimate SOC Capacity of Power Battery on the Dynamic Working Voltage","authors":"W. Ye, Weibing Chen","doi":"10.1109/ICDMA.2013.132","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.132","url":null,"abstract":"This paper takes the VRLA battery cell as the research object, to solve real-time estimation problem of the electric vehicle power battery's state of charge(SOC) in working status, proposes a new estimation method. Through the measurement of a periodic constant current load's work battery, get a series of working voltage, using phase-slope calculation method based on the working voltage at this time, calculating the battery's time remaining and SOC. This method proved the feasibility of the dynamic working point can be mapped to the static working point, and the largest relative error is no more than 7%. Through the software implementation can compensate temperature, aging and other interference factors. Error analysis results show that this method has small error, high measurement precision.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129534898","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}
Cities are the main sources of CO2 emissions and other greenhouse gas (GHG) emissions, and low-carbon urban planning can provide effective and essential methods to control them during the construction and operation process of cities. The aim of this paper is to explore innovative ideas of low-carbon urban planning in our country and to examine the scenarios toward the realization of sustainable cities. This paper discusses the theories and practices of low-carbon urban planning. Finally, future development direction in China is been proposed.
{"title":"Innovative Ideas Study on Low-Carbon Urban Planning under Global Climate Change","authors":"H. Lidi, Z. Tianyu","doi":"10.1109/ICDMA.2013.166","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.166","url":null,"abstract":"Cities are the main sources of CO2 emissions and other greenhouse gas (GHG) emissions, and low-carbon urban planning can provide effective and essential methods to control them during the construction and operation process of cities. The aim of this paper is to explore innovative ideas of low-carbon urban planning in our country and to examine the scenarios toward the realization of sustainable cities. This paper discusses the theories and practices of low-carbon urban planning. Finally, future development direction in China is been proposed.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129598727","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}
Geographic Information System (GIS) technology is more and more used even in the technical practice of a construction industry. In the preparatory phase of the construction, the problems of a spatial positioning (location) of the construction have to be solved jointly with the checking of the feasibility and purposefulness, the traffic projects are worked out, and the alternative. More detailed solutions of technical problems are designed. At project development there are used various forms of initial documents, results of the actual data gathering and surveys, map sheets, photographs, previous documents referring to the problems solved, and appropriate legal and technical standards. The article presents the experience with the issue of GIS in construction in preparation of buildings, in the implementation phase of the construction in GIS. It presents a model of information system construction and technology of mobile GIS for data collection and use of mobile GIS in water management.
{"title":"GIS Application in Civil Engineering","authors":"Zheng Rui","doi":"10.1109/ICDMA.2013.150","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.150","url":null,"abstract":"Geographic Information System (GIS) technology is more and more used even in the technical practice of a construction industry. In the preparatory phase of the construction, the problems of a spatial positioning (location) of the construction have to be solved jointly with the checking of the feasibility and purposefulness, the traffic projects are worked out, and the alternative. More detailed solutions of technical problems are designed. At project development there are used various forms of initial documents, results of the actual data gathering and surveys, map sheets, photographs, previous documents referring to the problems solved, and appropriate legal and technical standards. The article presents the experience with the issue of GIS in construction in preparation of buildings, in the implementation phase of the construction in GIS. It presents a model of information system construction and technology of mobile GIS for data collection and use of mobile GIS in water management.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130460794","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}
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