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2010 Chinese Control and Decision Conference

作者： Xiaoyi Li~1,Zhaodi Xu~1,Wanxi Chou~2 1.school of Mathematics and Systems Science,shenyang Normal university,shenyang,110034,china. 2 school of civil engineering and Architecture,Anhui university of Science and Technology,Huainan Anhu 232001.china.

＜正＞A new method of constructing Steiner triple systems has been *** basic theory that contain definition,lemmas of decomposable of some complete graphs has been described.A theorem concerning construction of Steine... 详细信息

关键词： Steiner triple systems order construction matrix

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Life cycle assessment for the "implicit" environmental impact of construction projects

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Journal of Pharmaceutical Analysis 2009年第3期21卷 167-171页

作者： Xiao-gen Shuai1,2,Hui-qiang Li1,2,Li Tang1,31. school of civil engineering and Mechanics,Huazhong university of Science & Technology,Wuhan 430074 2. Hubei Key Laboratory of Control Structure,Huazhong university of Science & Technology,Wuhan 430074,china 3. Bartlett school of Graduate Study,university College London,London WC1E 6BT,UK. school of civil engineering and Mechanics Huazhong University of Science and Technology Wuhan 430074 China Hubei Key Laboratory of Control Structure Huazhong University of Science and Technology Wuhan 430074 China Bartlett school of Graduate Study University College London London WC1E 6BT United Kingdom

The paper has established an assessment system and a quantitative calculation method of the 'implicit' environmental impact including environmental impact indicator,resources consumption indicator and energy consumption indicator. The quantitative calculation of the environmental impact indicator is based on the life cycle assessment system and the evaluation software BEES. The paper identifies normalization reference values and weights for 12 categories of the environmental impact. It also analyzes the environmental impact indicator in life cycle stages,raw materials,transportation,manufacturing,utilization,and end of life. A university refectory project is studied. The result has shown that human health,global warming and acidification are the first three environmental impacts in 12 categories. The environmental impact indicator per m2 of this project is 18.448×10-2 standard human equivalent weight. Moreover,97.3% of the total environmental impact occurs at the raw material stage,in which the most severe environmental impact is cancerous health effect; the global warming is the main impact at the transportation and manufacturing stages; the indoor air quality impact is at the usage stage.

关键词： life cycle assessment environmental impact implicit environmental impact BEES software

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维普期刊数据库

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A method of constructing Kirkman triple system of higher order

A method of constructing Kirkman triple system of higher ord...

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2010 Chinese Control and Decision Conference

作者： Xiaoyi Li~1,Zhaodi Xu~1,Wanxi Chou~2 1.school of Mathematics and System Science,shenyang Normal university,shenyang,110034.china. 2 school of civil engineering and Architecture,Anhui university of Science and Technology,Huainan Anhu 232001.china.

A method of construction Kirkman triple system of higher order is proposed.A foundamental theory of constructing Kirkman triple system of order r×t is *** entire procedure of construction Kirkman triple system of ord... 详细信息

关键词： construction Kirkman system order construction set matrix

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Special Inclinations for Satellite Formations in Near Circular Orbits

Special Inclinations for Satellite Formations in Near Circul...

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第24届中国控制与决策会议

作者： Guangyan Xu and Zhi Du school of Automation, shenyang Aerospace university, shenyang, china, 110136

The possibility to obtain a natural periodic satellite formation is investigated. This paper shows that such formations under J 2 perturbation have four possible inclinations, which are the inclination at equatorial orbit （ i 0° / 180°）, inclination at polar orbit （ i 90°）, the critical inclination （ i 63.4° / 116.6°）and the "succeeding critical inclination" （ i 49.1° /130.9°）.Periodic and quasi-periodic relative orbits are introduced based on the special inclinations.

关键词： J 2 Perturbation Satellite Formation Special Inclinations

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Safe Environmental Research on Urban Road

Safe Environmental Research on Urban Road

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2004安全科学与技术国际会议

作者： LI Yanchun, ZHOU Liwei & LI Donglan (school of civil engineering, Hebei university of Technology, Tianjin 300132, china)

The environment in transportation fine or not in road relates to the transportation safety directly. This paper analyzes the factors that worsen environment in transportation in city according to plen

关键词： safe environmental in transportation safety devices road resources traffic accident

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Task Merger and Spanning Tree Based Grid Tasks Rescheduling

Task Merger and Spanning Tree Based Grid Tasks Rescheduling

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2012 International Conference on Affective Computing and Intelligent Interaction(ICACII 2012)

作者： Tingwei Chen a Jingsen Wang b Shanjie Zhou c school of Information engineering Liaoning university 110036 shenyang china

Grid resources are autonomic,distributed and their status change over time,those applications scheduling are not fixed,so grid tasks need *** will increase response *** solve this question,in this paper,task merger and a spanning tree based grid tasks rescheduling approach is presented to improve response *** approach focus on reducing the reduceing the number of tasks and chooseing minimal communication *** tasks-load are merged for reduce reschedule probability,then generate a minimal spanning tree to improve response *** show that this approach could improve response time,hence overcome deficiency of previous algorithm.

关键词： Tasks Rescheduling Spanning Tree Task Merger

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数值模型在地下水管理中的应用

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水文地质工程地质 2003年第6期30卷 72-79,88页

作者：张奇大连理工大学土木水利学院水环境室大连116024

为进一步推动模拟工作,并使模拟尽可能标准化和规范化,介绍国际上认可的建立模型的步骤、方法以及常用的模拟软件。引用作者在国外所做的两个实例,对建立模型的步骤、方法以及模型标定方法和标定结果作了具体的介绍。国内应鼓励使用已... 详细信息

为进一步推动模拟工作,并使模拟尽可能标准化和规范化,介绍国际上认可的建立模型的步骤、方法以及常用的模拟软件。引用作者在国外所做的两个实例,对建立模型的步骤、方法以及模型标定方法和标定结果作了具体的介绍。国内应鼓励使用已有的国际标准化模拟软件,进一步提高建模的专门知识和技巧。数值模型是真实世界的一个数学表达,对模型的产出应有一个现实的看法和专业的理解。模型建立前,应对现场数据作详细的专业分析,以确保概念模型的正确。在模型的建设中,应把注意力放在如何使模型在水文地质和物理过程方面去逼近真实世界。模型中采用的计算条件或方法都应有水文地质依据作支持,而不能仅仅为了逼近实测数据而随意地加入无依据的计算条件,这样的模型是不可靠的,其结果将是无实际意义的或是误导的。

关键词：数值模型地下水管理 MODFLOW 可开采水量

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维普期刊数据库

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Risk Control of Liquid Chlorine Leak in Wastewater Treatment Plant Based on QRA

Risk Control of Liquid Chlorine Leak in Wastewater Treatment...

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2010(沈阳)国际安全科学与技术学术研讨会

作者： ZHANG Sheng-zhu~1,WU Zong-zhi~2,KANG Rong-xue~2,SANG Hai-quan~2,GU Hai-bo~2,LIU Ning~3 (1.Faculty of resources and Safety engineering,china university of Mining and Technology(Beijing),Beijing 100083,china 2.china Academy of Safety Science and Technology,Beijing 100012,china 3.civil and Environment engineering school,university of Science and Technology Beijing 100083,china)

＜正＞The bulk storage of liquid chlorine meets the need of disinfection but also poses a considerable risk to the residents *** on the risk analysis of chlorine leak,and through the study of chlorine leak mode,leak source strength and the consequences of accidents,the model of accident consequences of chlorine leak was *** was analyzed by quantitative method and the acceptable standards of individual and social risk were *** quantitative risk calculations are performed in a wastewater treatment plant,and the individual risk contour and social risk curve are *** respect of the high-risk areas,risk control measures are proposed.

关键词： wastewater treatment plant chlorine leak quantitative risk assessment risk control

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Decomposition of K2n into n-1 Hamiltonian Cycles and a perfect matching Mi

Decomposition of K2n into n-1 Hamiltonian Cycles and a perfe...

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第24届中国控制与决策会议

作者： Zhaodi Xu 1 , Xiaoyi Li 1 , Wanxi Chou 2 1. school of Mathematics and Systems Science, shenyang Normal university, shenyang, 110034, china. 2 school of civil engineering and Architecture, Anhui university of Science and Technology, Huainan Anhui 232001. china.

Theorem on 2-factorization of complete graph K 2n of even order is proved. Foundamental concepts of 1-factorization and 2-factorization of complete graphs K 2n are described. Construct the edge matrix of the complete graph K 2n edge coloring has been followed Thus the rectangular matrix has been composed by 1-factor of 2n-1 . Determine the collocation programming which is let 2n-1 1-factor combined with n-1 2-factor and 1 1-factor and generated cycles for each 2-factor , In accordance with the different Programming, The process which let E（G） divide into n-1 frontier set of Hamiltonian cycles and 1 1-factor .The entire procedure of 2-factorization of complete graphs K 10 K 12 and K 14 is presented.

关键词： complete graph prefect matching Hamiltonian cycle factorization even order

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New method of constructing triple system with order s×t

New method of constructing triple system with order s×t

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第24届中国控制与决策会议

作者： Zhaodi Xu 1 , Xiaoyi Li 1 ,Wanxi Chou 2 1. school of Mathematics and Systems Science, shenyang Normal university, shenyang,110034, china. 2 school of civil engineering and Architecture, Anhui university of Science and Technology, Huainan Anhu 232001. china.

The method of constructing triple system with order s× t is proposed. The fundamental theory of constructing triple system with order s × t is described and the conclusion is proved. The process of construction triple system with order 7 × 7 is proposed in detail. The conclusion suggested that the fundamental theory of constructing triple system which provided a new and effective ways for constructing triple system of order 7 × 7.

关键词： Triple system Order Primary matrix Set partition Construction.

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