Construction management innovation system of metro in China is put forward in this paper. Guidelines,objective system,new management ideas and contents of this construction management innovation system are set forth p...Construction management innovation system of metro in China is put forward in this paper. Guidelines,objective system,new management ideas and contents of this construction management innovation system are set forth particularly. The construction management innovation system of metro can meet needs of building harmonious and economized society and realizing sustainable development in China,it is also an important part of science & technology innovation system.展开更多
Work exchange is a promising innovative technology in recovering residual pressure energy. However, at the systematic level, the comprehensive utilization of different energy resources in an energy system has become a...Work exchange is a promising innovative technology in recovering residual pressure energy. However, at the systematic level, the comprehensive utilization of different energy resources in an energy system has become an issue of concern. In this work, a systematic approach is proposed, one that successively integrates heat, work and adjusts operation parameters. A detailed procedure for building a heat-work coupling transfer network is provided. The synthesis mainly consists of constructing a work exchange sub-network with pinch analysis based on positive displacement type work exchangers. Simultaneously, another kind of sub-network based on turbine-type work exchangers is built as a schematic comparison. The influence of applying a positive displacement work exchanger on the system is investigated. Finally, as a case study, a renovation design of a typical rectisol process in the coal-water slurry gasification section of an ammonia plant is presented. The results show that the added work exchanger has little impact on the existing heat exchange sub-network. Moreover,extra pressure energy is recovered by coupling the transfer network. It is concluded that the heat-work systematic design is a promising and powerful method to use energy more efficiently.展开更多
The National Mid and Long Period Program on Scientific and Technology Developmentstresses that by 2020, the ratio of contribution of China' s scientific and technology progress to the economic growth should be... The National Mid and Long Period Program on Scientific and Technology Developmentstresses that by 2020, the ratio of contribution of China' s scientific and technology progress to the economic growth should be improved to60%, the ratio of R & D investment in GDP should be improved to 2.5%……展开更多
The success in compiling China's Civil Code benefits from factors such as China's complete system of civil law statutes,the methodology of the Pandekten System,and the private-law attributes of civil laws,etc....The success in compiling China's Civil Code benefits from factors such as China's complete system of civil law statutes,the methodology of the Pandekten System,and the private-law attributes of civil laws,etc.To construct the framework of China's environmental code,it is necessary to reference that success for theoretical and structural innovations.In addition,the fundamental features and inherent issues of China's existing environmental law system,such as its breadth,the extensiveness of origins of environmental law,the multiple implication of environmental legal relations,and the compound nature of the environmental legal liability system,should be taken into account.The layout structure of"General-Specifics"should be adopted for compiling China's environmental code,while moderate codification and extraction of the common factor(vor die Klammer zu ziehen)for connection with applicable rules of specific laws should serve as construction principles and methods for compiling the framework of China's environmental code.The environmental code should have five parts:"General";"Pollution Prevention and Control";"Nature Conservation";"Green and Low-Carbon Development";and"Ecological and Environmental Responsibility."展开更多
文摘Construction management innovation system of metro in China is put forward in this paper. Guidelines,objective system,new management ideas and contents of this construction management innovation system are set forth particularly. The construction management innovation system of metro can meet needs of building harmonious and economized society and realizing sustainable development in China,it is also an important part of science & technology innovation system.
基金supported by the National Natural Science Foundation of China (No. 20936004 and No. 21376187)
文摘Work exchange is a promising innovative technology in recovering residual pressure energy. However, at the systematic level, the comprehensive utilization of different energy resources in an energy system has become an issue of concern. In this work, a systematic approach is proposed, one that successively integrates heat, work and adjusts operation parameters. A detailed procedure for building a heat-work coupling transfer network is provided. The synthesis mainly consists of constructing a work exchange sub-network with pinch analysis based on positive displacement type work exchangers. Simultaneously, another kind of sub-network based on turbine-type work exchangers is built as a schematic comparison. The influence of applying a positive displacement work exchanger on the system is investigated. Finally, as a case study, a renovation design of a typical rectisol process in the coal-water slurry gasification section of an ammonia plant is presented. The results show that the added work exchanger has little impact on the existing heat exchange sub-network. Moreover,extra pressure energy is recovered by coupling the transfer network. It is concluded that the heat-work systematic design is a promising and powerful method to use energy more efficiently.
文摘 The National Mid and Long Period Program on Scientific and Technology Developmentstresses that by 2020, the ratio of contribution of China' s scientific and technology progress to the economic growth should be improved to60%, the ratio of R & D investment in GDP should be improved to 2.5%……
文摘The success in compiling China's Civil Code benefits from factors such as China's complete system of civil law statutes,the methodology of the Pandekten System,and the private-law attributes of civil laws,etc.To construct the framework of China's environmental code,it is necessary to reference that success for theoretical and structural innovations.In addition,the fundamental features and inherent issues of China's existing environmental law system,such as its breadth,the extensiveness of origins of environmental law,the multiple implication of environmental legal relations,and the compound nature of the environmental legal liability system,should be taken into account.The layout structure of"General-Specifics"should be adopted for compiling China's environmental code,while moderate codification and extraction of the common factor(vor die Klammer zu ziehen)for connection with applicable rules of specific laws should serve as construction principles and methods for compiling the framework of China's environmental code.The environmental code should have five parts:"General";"Pollution Prevention and Control";"Nature Conservation";"Green and Low-Carbon Development";and"Ecological and Environmental Responsibility."
