Automatic control technology is the basis of road robot improvement,according to the characteristics of construction equipment and functions,the research will be input type perception from positioning acquisition,real...Automatic control technology is the basis of road robot improvement,according to the characteristics of construction equipment and functions,the research will be input type perception from positioning acquisition,real-world monitoring,the process will use RTK-GNSS positional perception technology,by projecting the left side of the earth from Gauss-Krueger projection method,and then carry out the Cartesian conversion based on the characteristics of drawing;steering control system is the core of the electric drive unmanned module,on the basis of the analysis of the composition of the steering system of unmanned engineering vehicles,the steering system key components such as direction,torque sensor,drive motor and other models are established,the joint simulation model of unmanned engineering vehicles is established,the steering controller is designed using the PID method,the simulation results show that the control method can meet the construction path demand for automatic steering.The path planning will first formulate the construction area with preset values and realize the steering angle correction during driving by PID algorithm,and never realize the construction-based path planning,and the results show that the method can control the straight path within the error of 10 cm and the curve error within 20 cm.With the collaboration of various modules,the automatic construction simulation results of this robot show that the design path and control method is effective.展开更多
In order to realize the accurate prediction of the total output value of construction industry in the future,the grey prediction model is used to compare the measured value with the predicted value from 2012 to 2021,a...In order to realize the accurate prediction of the total output value of construction industry in the future,the grey prediction model is used to compare the measured value with the predicted value from 2012 to 2021,and based on the existing data,the total output value of construction industry in Jiangxi Province in the next five years is predicted.The results show that the grey prediction model has a good prediction effect,and the error between the predicted value and the measured value is within 14%,which provides a basis for policy adjustment and resource optimization.展开更多
The theory of enterprise value management was applied to the performance evaluation of the discipline construction members in colleges and universities,and a value evaluation model of performance was established.Then,...The theory of enterprise value management was applied to the performance evaluation of the discipline construction members in colleges and universities,and a value evaluation model of performance was established.Then,using the analytic hierarchy process(AHP)and quantitative research method,it evaluated the cost of the discipline construction members and the functions realized.Finally,it determined the performance value level and came up with the value optimization recommendations.展开更多
The current economic conditions have entailed the use of rational method and techniques and research and application of new techniques by utilizing advancements in technology in the field of production as well as in e...The current economic conditions have entailed the use of rational method and techniques and research and application of new techniques by utilizing advancements in technology in the field of production as well as in every field. Excess cost control requires to be maintained throughout the project life of building beginning from the initial stages of design. Scrutinizing the project well and considering all possible alternatives particularly in design stage are important for achieving optimum cost. In this study, how the principles of VE （value engineering） are applied in construction projects is explained, and by covering Bregana-Zagreb-Dubrovnik Motorway construction in Croatia by BECHTEL -ENKA joint venture as the sample project, practices of VE in this project are described. The satisfactory results of time and cost saving are achieved by applying value engineering principles through the VE team during the project preparation phase and project revision phase. Approximately 43,000,0005 and 12 months of time were saved in total thanks to all these VE works. This saving provided builder company with 6% financial saving and 17% work time reduction.展开更多
New media have exerted profound influence on the core values of contemporary college students. In the new media era, in order to cultivate and practice the social core values, we have to transform the concept and meth...New media have exerted profound influence on the core values of contemporary college students. In the new media era, in order to cultivate and practice the social core values, we have to transform the concept and method of education. It is also important to realize the positive and negative influence of core values on both college students and teachers, so that the education on social core values can be carried out in an active and effective way.展开更多
The teacher is the engineer of the human soul,and the noble teacher’s morality is the core professional quality of the teacher.Aiming at the problems existing in the construction of teachers’morality in colleges and...The teacher is the engineer of the human soul,and the noble teacher’s morality is the core professional quality of the teacher.Aiming at the problems existing in the construction of teachers’morality in colleges and universities,this paper puts forward the construction of college teachers’morality with the core values of socialism as the carrier.From improving the conditions for teachers’access,establishing and improving the teacher’s morality assessment mechanism,teacher cadre selection and employment mechanism,creating an environment of respecting teachers,cultural education,strengthening teachers’moral education and theoretical training,providing scientific research policy environent and solving teachers’actual conditions,permeate the core values of socialism throughout the whole process of the construction of teachers’morality in colleges and universities,from point to point and level to level,improve the quality of college teachers’moral construction.展开更多
New media is an important part of the construction of college students＇ values. The rapid development and extensive application of new media have a positive and negative impact on the ideological behavior of college ...New media is an important part of the construction of college students＇ values. The rapid development and extensive application of new media have a positive and negative impact on the ideological behavior of college students. In order to cause the university student understanding and the approval socialism core values, we need to use the new media, from aspects and so on with the education idea, propaganda way, education vigor, content construction platform construction constructs the contemporary university student＇ s correct values.展开更多
Under the background of constructing harmonious economic society, how to realize the coordinated development of regions in the course of region integration is a key problem. According to the relevant theory of enterpr...Under the background of constructing harmonious economic society, how to realize the coordinated development of regions in the course of region integration is a key problem. According to the relevant theory of enterprise gene reconfiguration and enterprise value network construction, we analyzed the problems in the merging course between the value network construction and region economic growth. Finally, we put forward the basic path of coordinated development of regions.展开更多
Zeolites with ordered porous structure of molecular size are widely employed as commercial adsorbents and catalysts.On the other hand,the zeolite matrix is regarded as an ideal scaffold for hosting coordinatively unsa...Zeolites with ordered porous structure of molecular size are widely employed as commercial adsorbents and catalysts.On the other hand,the zeolite matrix is regarded as an ideal scaffold for hosting coordinatively unsaturated sites.Remarkable achievements have been made dealing with the construction,characterization and catalytic applications of coordinatively unsaturated sites in zeolite matrix.Herein,a literature overview of recent progresses on this important topic is presented from the specific view of coordination chemistry.Different strategies to construction coordinatively unsaturated sites in zeolite matrix,in zeolite framework or extraframework positions,are first introduced and their characteristics are compared.Then,spectroscopic techniques to determine the existing states of cation sites and their transformations in zeolite matrix are discussed.In the last section,the catalytic applications of coordinatively unsaturated sites in zeolite matrix for various important chemical transformations are summarized.展开更多
On the basis of similar structure of solutions of ordinary differential equation (ODE) boundary value problem, the similar construction method was put forward by solving problems of fluid flow in porous media through ...On the basis of similar structure of solutions of ordinary differential equation (ODE) boundary value problem, the similar construction method was put forward by solving problems of fluid flow in porous media through the homogeneous reservoir. It is indicate that the pressure distribution of dimensionless reservoir and bottom hole in Laplace space, which take on the radial flow, also shows similar structure, and the internal relationship between the above solutions were illustrated in detail.展开更多
Large deposits of cement raw material and resources like limestone, gypsum and shales/clays found from the Koh Sulaiman area of South Punjab (Saraikistan) and Balochistan Provinces, Pakistan. The installation of cemen...Large deposits of cement raw material and resources like limestone, gypsum and shales/clays found from the Koh Sulaiman area of South Punjab (Saraikistan) and Balochistan Provinces, Pakistan. The installation of cement industries especially in South Punjab/Saraikistan Province due to close occurrences of resources should develop the area and increase the export. The Koh Sulaiman regions of South Punjab (Saraikistan) have huge gypsum deposits which deserve for further exploitation. Pakistan is agricultural country and fertility of cultivated lands is vital. Fertilizer resources like phosphate deposits are moderate but the deposits of phosphate and potash bearing rocks are very vast and need their further explorations and exploitation in the Indus Basin. Pakistan has very large construction, dimension and decor stone deposits like limestone, marble, dolomite and igneous rocks like granite, dolerite, serpentine, etc. which needs further exploitation for the development of the areas and increase export. Pakistan is spending a lot of earnings for importing glass, glass wares, pottery, clay, etc. while Pakistan has these resources which needs exploitation of own resources. The best structures and geotectonic elements like the Northern and Western Indus Sutures and Karakoram Suture and Indus placers which are rich in gemstones and jewelry resources. To increase gems and jewelry export, these industries requires reduction in gemstones smuggling and encouragement for gem appraisal and jewelry industry at high level for value addition. In short, Pakistan is rich in natural resources but poor in development. Try should be made to develop and export the own mineral commodities like cement, gypsum, marble, gemstones and jewelry.展开更多
In northern China’s agro-pastoral ecotone,there are conflicts between agricultural industry and ecological construction resource competition,and also problems urgently to be solved for economic growth and sustainable...In northern China’s agro-pastoral ecotone,there are conflicts between agricultural industry and ecological construction resource competition,and also problems urgently to be solved for economic growth and sustainable ecological improvement.Taking the development concept of"lucid waters and lush mountains being mountains of gold and silver"as the guiding principle of prioritizing ecological and green development,this paper studied the strategies for prioritizing ecological construction with consideration of economic development of agricultural industry from the perspective of opportunity cost.Through the analysis of opportunity cost,externality,and Pareto optimal theory,and using the calculation method of the unit equivalent factor value of terrestrial ecological service function,this paper calculated the ecological service value of forest,grassland,and farmland.It found that the ecological value of forest and grassland per unit area was greater than the ecological value of agricultural industry.This indicates that the opportunity cost of farmland for ecological construction was less than that of agricultural industry.Based on the theoretical and quantitative analysis,it came up with recommendations for establishing a comprehensive system for prioritizing ecological construction with consideration of agricultural industry development and establishing and improving the incentive mechanism of ecological construction.展开更多
Based on the interpretation of the connotation of ecological civilization and rural landscape, and takes Zizhulin village in Yanshan County as study object, tiiis paper discusses tiie landscape pattern of Zizhulin Vi...Based on the interpretation of the connotation of ecological civilization and rural landscape, and takes Zizhulin village in Yanshan County as study object, tiiis paper discusses tiie landscape pattern of Zizhulin Village relying on the national 4A level scenic spot, and demonstrates the feasibility of its construction of natural ecological landscape and local cultural kndscapej so as to provide reference for the construction of the ＂beautiful village＂ landscape with good ecological environment in other parts of China.展开更多
During this professional research--Construction Project Forecasting （Practical Use of EV Metrics）, which criticize earned value management as a most distinguished methodology for forecasting the project expected end...During this professional research--Construction Project Forecasting （Practical Use of EV Metrics）, which criticize earned value management as a most distinguished methodology for forecasting the project expected end dates and expecting budget at completion, the field for the research is construction field and specially the projects which content different phases without repetitive tasks. Forecasting for construction project is a complicated process need more than applying one equation only. As assuming that, project performance during finishing stage will be similar to project performance during concrete stage is totally wrong. The case study techniques have been used to prove an important idea and also to implement a suggested protocol which actually implemented and tested and it should be considered as a research finding. The project used in this case study is ＂Hurgadah Intemational Airport--New Terminal Building＂, while executing this complex construction projects with different stages the forecasting for the project end date and final end budget were completely not realistic. The above leads to questioning the next： ＂Is it true that using the earned value indexes for forecasting construction projects end date and final budget is the right way？ And if not, what is the right process that should be used in order to reach acceptable forecasting method？＂ We implement the EV measurements by the normal technique and also implement in the same month the suggested protocol for forecasting, comparing the results proof the effectiveness of the suggested protocol. The findings prove that, the construction projects need special treatment when use the EVM for forecasting. The earned value indexes created to serve the projects which have repeated tasks or can say which got one stage only, like information technology （IT） projects as those projects depending on manpower productivity and also based on few different qualifications. On such type of projects the earned value forecasting calculation is perfectly used.展开更多
As we all know,the construction and construction process of civil engineering projects are very complicated,so coordination and cooperation of different professions and types of work are required during construction.B...As we all know,the construction and construction process of civil engineering projects are very complicated,so coordination and cooperation of different professions and types of work are required during construction.Based on this,the article focuses on the strategy of equipment installation engineering and civil engineering construction cooperation from different construction stages and hopes to help.展开更多
It needs the foundation of system and the guarantee of organizational system for anti-corruption,but it is more necessary to build and form an effective anti-corruption mechanism,so that the anti-corruption can be rea...It needs the foundation of system and the guarantee of organizational system for anti-corruption,but it is more necessary to build and form an effective anti-corruption mechanism,so that the anti-corruption can be really put into practice. Anti-corruption mechanism refers to a organic operation system of the interaction,interconnection and constraint between the constituent elements( parts) and elements of national anti-corruption,and as a system,anti-corruption mechanism should have the characteristics of system aticness,comprehensiveness,transparency,legalization,public participation,scientific dynam ic,and internationalism. The construction of deepening anti-corruption mechanism is the need for reconstructing the ruling legitimacy of the party and the governm ent. Adhering to the principle of treating both root causes and symptoms is necessary in the construction of anti-corruption m echanism,com bating and punishing corruption is an important part of anti-corruption,and the prevention and control of corruption is the basic project of anti-corruption. Therefore,the construction of prevention and control mechanism in the anti-corruption mechanism has a more far-reaching significance.展开更多
Western urbanization theory has crucial influence on the course of China' s urban and rural construction.Social economy and the scientific distribution of population are the key of the layout of urban and rural co...Western urbanization theory has crucial influence on the course of China' s urban and rural construction.Social economy and the scientific distribution of population are the key of the layout of urban and rural construction and an important factor in facilitating the innovative development of urban and rural construction.The continuous improvement of the environment of social resources as well as the quality of life is the focus of China' s urban and rural construction.As western urbanization theory just probes into this specific issue,it offers referential value in urging us to take the path of sustainable development in urban and rural construction.展开更多
This paper aims to present a comprehensive proposal for project scheduling and control by applying fuzzy earned value.It goes a step further than the existing literature:in the formulation of the fuzzy earned value we...This paper aims to present a comprehensive proposal for project scheduling and control by applying fuzzy earned value.It goes a step further than the existing literature:in the formulation of the fuzzy earned value we consider not only its duration,but also cost and production,and alternatives in the scheduling between the earliest and latest times.The mathematical model is implemented in a prototypical construction project with all the estimated values taken as fuzzy numbers.Our findings suggest that different possible schedules and the fuzzy arithmetic provide more objective results in uncertain environments than the traditional methodology.The proposed model allows for controlling the vagueness of the environment through the adjustment of the α-cut,adapting it to the specific circumstances of the project.展开更多
Mesh deformation technique is widely used in many application fields, and has re- ceived a lot of attentions in recent years. This paper focuses on the methodology and algorithm of algebraic type mesh deformation for ...Mesh deformation technique is widely used in many application fields, and has re- ceived a lot of attentions in recent years. This paper focuses on the methodology and algorithm of algebraic type mesh deformation for unstructured mesh in numerical discretization. To preserve mesh quality effectively, an algebraic approach for two and three dimensional unstructured mesh is developed based on mean value coordinates interpolation combined with node visibility analysis. The proposed approach firstly performs node visibility analysis to find out the visible boundary for each grid point to be moved, then evaluates the mean value coordinates of each grid point with respect to all vertices on its visible boundary. Thus the displacements of grid points can be calculated by interpolating the boundary movement by the mean value coordinates. Compared with other methods, the proposed method has good deformation capability and predictable com- putational cost, with no need to select parameters or functions. Applications of mesh deformation in different fields are presented to demonstrate the effectiveness of the proposed approach. The results of numerical experiments exhibit not only superior deformation capability of the method in traditional applications of fluid dynamic grid, but also great potential in modeling for large deformation analysis and inverse design problems.展开更多
文摘Automatic control technology is the basis of road robot improvement,according to the characteristics of construction equipment and functions,the research will be input type perception from positioning acquisition,real-world monitoring,the process will use RTK-GNSS positional perception technology,by projecting the left side of the earth from Gauss-Krueger projection method,and then carry out the Cartesian conversion based on the characteristics of drawing;steering control system is the core of the electric drive unmanned module,on the basis of the analysis of the composition of the steering system of unmanned engineering vehicles,the steering system key components such as direction,torque sensor,drive motor and other models are established,the joint simulation model of unmanned engineering vehicles is established,the steering controller is designed using the PID method,the simulation results show that the control method can meet the construction path demand for automatic steering.The path planning will first formulate the construction area with preset values and realize the steering angle correction during driving by PID algorithm,and never realize the construction-based path planning,and the results show that the method can control the straight path within the error of 10 cm and the curve error within 20 cm.With the collaboration of various modules,the automatic construction simulation results of this robot show that the design path and control method is effective.
文摘In order to realize the accurate prediction of the total output value of construction industry in the future,the grey prediction model is used to compare the measured value with the predicted value from 2012 to 2021,and based on the existing data,the total output value of construction industry in Jiangxi Province in the next five years is predicted.The results show that the grey prediction model has a good prediction effect,and the error between the predicted value and the measured value is within 14%,which provides a basis for policy adjustment and resource optimization.
基金Project of the 13th Five-Year Plan for Education and Science of Tianjin"Study on Dynamic Monitoring Mechanism of Discipline Construction Performance in Colleges and Universities"(HE3078).
文摘The theory of enterprise value management was applied to the performance evaluation of the discipline construction members in colleges and universities,and a value evaluation model of performance was established.Then,using the analytic hierarchy process(AHP)and quantitative research method,it evaluated the cost of the discipline construction members and the functions realized.Finally,it determined the performance value level and came up with the value optimization recommendations.
文摘The current economic conditions have entailed the use of rational method and techniques and research and application of new techniques by utilizing advancements in technology in the field of production as well as in every field. Excess cost control requires to be maintained throughout the project life of building beginning from the initial stages of design. Scrutinizing the project well and considering all possible alternatives particularly in design stage are important for achieving optimum cost. In this study, how the principles of VE （value engineering） are applied in construction projects is explained, and by covering Bregana-Zagreb-Dubrovnik Motorway construction in Croatia by BECHTEL -ENKA joint venture as the sample project, practices of VE in this project are described. The satisfactory results of time and cost saving are achieved by applying value engineering principles through the VE team during the project preparation phase and project revision phase. Approximately 43,000,0005 and 12 months of time were saved in total thanks to all these VE works. This saving provided builder company with 6% financial saving and 17% work time reduction.
文摘New media have exerted profound influence on the core values of contemporary college students. In the new media era, in order to cultivate and practice the social core values, we have to transform the concept and method of education. It is also important to realize the positive and negative influence of core values on both college students and teachers, so that the education on social core values can be carried out in an active and effective way.
文摘The teacher is the engineer of the human soul,and the noble teacher’s morality is the core professional quality of the teacher.Aiming at the problems existing in the construction of teachers’morality in colleges and universities,this paper puts forward the construction of college teachers’morality with the core values of socialism as the carrier.From improving the conditions for teachers’access,establishing and improving the teacher’s morality assessment mechanism,teacher cadre selection and employment mechanism,creating an environment of respecting teachers,cultural education,strengthening teachers’moral education and theoretical training,providing scientific research policy environent and solving teachers’actual conditions,permeate the core values of socialism throughout the whole process of the construction of teachers’morality in colleges and universities,from point to point and level to level,improve the quality of college teachers’moral construction.
文摘New media is an important part of the construction of college students＇ values. The rapid development and extensive application of new media have a positive and negative impact on the ideological behavior of college students. In order to cause the university student understanding and the approval socialism core values, we need to use the new media, from aspects and so on with the education idea, propaganda way, education vigor, content construction platform construction constructs the contemporary university student＇ s correct values.
文摘Under the background of constructing harmonious economic society, how to realize the coordinated development of regions in the course of region integration is a key problem. According to the relevant theory of enterprise gene reconfiguration and enterprise value network construction, we analyzed the problems in the merging course between the value network construction and region economic growth. Finally, we put forward the basic path of coordinated development of regions.
基金supported by the National Natural Science Fundation of China(21722303,21421001)the Municipal Natural Science Fund of Tianjin(18JCJQJC47400,18JCZDJC37400)111 Project(B12015,B18030)~~
文摘Zeolites with ordered porous structure of molecular size are widely employed as commercial adsorbents and catalysts.On the other hand,the zeolite matrix is regarded as an ideal scaffold for hosting coordinatively unsaturated sites.Remarkable achievements have been made dealing with the construction,characterization and catalytic applications of coordinatively unsaturated sites in zeolite matrix.Herein,a literature overview of recent progresses on this important topic is presented from the specific view of coordination chemistry.Different strategies to construction coordinatively unsaturated sites in zeolite matrix,in zeolite framework or extraframework positions,are first introduced and their characteristics are compared.Then,spectroscopic techniques to determine the existing states of cation sites and their transformations in zeolite matrix are discussed.In the last section,the catalytic applications of coordinatively unsaturated sites in zeolite matrix for various important chemical transformations are summarized.
文摘On the basis of similar structure of solutions of ordinary differential equation (ODE) boundary value problem, the similar construction method was put forward by solving problems of fluid flow in porous media through the homogeneous reservoir. It is indicate that the pressure distribution of dimensionless reservoir and bottom hole in Laplace space, which take on the radial flow, also shows similar structure, and the internal relationship between the above solutions were illustrated in detail.
文摘Large deposits of cement raw material and resources like limestone, gypsum and shales/clays found from the Koh Sulaiman area of South Punjab (Saraikistan) and Balochistan Provinces, Pakistan. The installation of cement industries especially in South Punjab/Saraikistan Province due to close occurrences of resources should develop the area and increase the export. The Koh Sulaiman regions of South Punjab (Saraikistan) have huge gypsum deposits which deserve for further exploitation. Pakistan is agricultural country and fertility of cultivated lands is vital. Fertilizer resources like phosphate deposits are moderate but the deposits of phosphate and potash bearing rocks are very vast and need their further explorations and exploitation in the Indus Basin. Pakistan has very large construction, dimension and decor stone deposits like limestone, marble, dolomite and igneous rocks like granite, dolerite, serpentine, etc. which needs further exploitation for the development of the areas and increase export. Pakistan is spending a lot of earnings for importing glass, glass wares, pottery, clay, etc. while Pakistan has these resources which needs exploitation of own resources. The best structures and geotectonic elements like the Northern and Western Indus Sutures and Karakoram Suture and Indus placers which are rich in gemstones and jewelry resources. To increase gems and jewelry export, these industries requires reduction in gemstones smuggling and encouragement for gem appraisal and jewelry industry at high level for value addition. In short, Pakistan is rich in natural resources but poor in development. Try should be made to develop and export the own mineral commodities like cement, gypsum, marble, gemstones and jewelry.
基金Supported by Project of National Social Science Foundation of China(19BSH077).
文摘In northern China’s agro-pastoral ecotone,there are conflicts between agricultural industry and ecological construction resource competition,and also problems urgently to be solved for economic growth and sustainable ecological improvement.Taking the development concept of"lucid waters and lush mountains being mountains of gold and silver"as the guiding principle of prioritizing ecological and green development,this paper studied the strategies for prioritizing ecological construction with consideration of economic development of agricultural industry from the perspective of opportunity cost.Through the analysis of opportunity cost,externality,and Pareto optimal theory,and using the calculation method of the unit equivalent factor value of terrestrial ecological service function,this paper calculated the ecological service value of forest,grassland,and farmland.It found that the ecological value of forest and grassland per unit area was greater than the ecological value of agricultural industry.This indicates that the opportunity cost of farmland for ecological construction was less than that of agricultural industry.Based on the theoretical and quantitative analysis,it came up with recommendations for establishing a comprehensive system for prioritizing ecological construction with consideration of agricultural industry development and establishing and improving the incentive mechanism of ecological construction.
文摘Based on the interpretation of the connotation of ecological civilization and rural landscape, and takes Zizhulin village in Yanshan County as study object, tiiis paper discusses tiie landscape pattern of Zizhulin Village relying on the national 4A level scenic spot, and demonstrates the feasibility of its construction of natural ecological landscape and local cultural kndscapej so as to provide reference for the construction of the ＂beautiful village＂ landscape with good ecological environment in other parts of China.
文摘During this professional research--Construction Project Forecasting （Practical Use of EV Metrics）, which criticize earned value management as a most distinguished methodology for forecasting the project expected end dates and expecting budget at completion, the field for the research is construction field and specially the projects which content different phases without repetitive tasks. Forecasting for construction project is a complicated process need more than applying one equation only. As assuming that, project performance during finishing stage will be similar to project performance during concrete stage is totally wrong. The case study techniques have been used to prove an important idea and also to implement a suggested protocol which actually implemented and tested and it should be considered as a research finding. The project used in this case study is ＂Hurgadah Intemational Airport--New Terminal Building＂, while executing this complex construction projects with different stages the forecasting for the project end date and final end budget were completely not realistic. The above leads to questioning the next： ＂Is it true that using the earned value indexes for forecasting construction projects end date and final budget is the right way？ And if not, what is the right process that should be used in order to reach acceptable forecasting method？＂ We implement the EV measurements by the normal technique and also implement in the same month the suggested protocol for forecasting, comparing the results proof the effectiveness of the suggested protocol. The findings prove that, the construction projects need special treatment when use the EVM for forecasting. The earned value indexes created to serve the projects which have repeated tasks or can say which got one stage only, like information technology （IT） projects as those projects depending on manpower productivity and also based on few different qualifications. On such type of projects the earned value forecasting calculation is perfectly used.
文摘As we all know,the construction and construction process of civil engineering projects are very complicated,so coordination and cooperation of different professions and types of work are required during construction.Based on this,the article focuses on the strategy of equipment installation engineering and civil engineering construction cooperation from different construction stages and hopes to help.
文摘It needs the foundation of system and the guarantee of organizational system for anti-corruption,but it is more necessary to build and form an effective anti-corruption mechanism,so that the anti-corruption can be really put into practice. Anti-corruption mechanism refers to a organic operation system of the interaction,interconnection and constraint between the constituent elements( parts) and elements of national anti-corruption,and as a system,anti-corruption mechanism should have the characteristics of system aticness,comprehensiveness,transparency,legalization,public participation,scientific dynam ic,and internationalism. The construction of deepening anti-corruption mechanism is the need for reconstructing the ruling legitimacy of the party and the governm ent. Adhering to the principle of treating both root causes and symptoms is necessary in the construction of anti-corruption m echanism,com bating and punishing corruption is an important part of anti-corruption,and the prevention and control of corruption is the basic project of anti-corruption. Therefore,the construction of prevention and control mechanism in the anti-corruption mechanism has a more far-reaching significance.
基金supported by the project of Humanities and Social Sciences granted by the Ministry of Education in China entitled"Analysison the Protection and Utilization of the Drainage System of Traditional Villages under the Background of New Type of Urbanization"
文摘Western urbanization theory has crucial influence on the course of China' s urban and rural construction.Social economy and the scientific distribution of population are the key of the layout of urban and rural construction and an important factor in facilitating the innovative development of urban and rural construction.The continuous improvement of the environment of social resources as well as the quality of life is the focus of China' s urban and rural construction.As western urbanization theory just probes into this specific issue,it offers referential value in urging us to take the path of sustainable development in urban and rural construction.
基金Project partially supported by the Spanish Ministry of Science and Innovation (No.BIA2011-23602)the European Community with the European Regional Development Fund (FEDER),Spain
文摘This paper aims to present a comprehensive proposal for project scheduling and control by applying fuzzy earned value.It goes a step further than the existing literature:in the formulation of the fuzzy earned value we consider not only its duration,but also cost and production,and alternatives in the scheduling between the earliest and latest times.The mathematical model is implemented in a prototypical construction project with all the estimated values taken as fuzzy numbers.Our findings suggest that different possible schedules and the fuzzy arithmetic provide more objective results in uncertain environments than the traditional methodology.The proposed model allows for controlling the vagueness of the environment through the adjustment of the α-cut,adapting it to the specific circumstances of the project.
基金Project supported by the National Basic Research Program of China(No.2010CB731503)the National Natural Science Foundation of China(Nos.11172004 and 10772004)the Beijing Municipal Natural Science Foundation(No.1102020)
文摘Mesh deformation technique is widely used in many application fields, and has re- ceived a lot of attentions in recent years. This paper focuses on the methodology and algorithm of algebraic type mesh deformation for unstructured mesh in numerical discretization. To preserve mesh quality effectively, an algebraic approach for two and three dimensional unstructured mesh is developed based on mean value coordinates interpolation combined with node visibility analysis. The proposed approach firstly performs node visibility analysis to find out the visible boundary for each grid point to be moved, then evaluates the mean value coordinates of each grid point with respect to all vertices on its visible boundary. Thus the displacements of grid points can be calculated by interpolating the boundary movement by the mean value coordinates. Compared with other methods, the proposed method has good deformation capability and predictable com- putational cost, with no need to select parameters or functions. Applications of mesh deformation in different fields are presented to demonstrate the effectiveness of the proposed approach. The results of numerical experiments exhibit not only superior deformation capability of the method in traditional applications of fluid dynamic grid, but also great potential in modeling for large deformation analysis and inverse design problems.
