In order to overcome the low precision and weak applicability problems of the current municipal water network state simulation model, the water network structure is studied. Since the telemetry system has been applied...In order to overcome the low precision and weak applicability problems of the current municipal water network state simulation model, the water network structure is studied. Since the telemetry system has been applied increasingly in the water network, and in order to reflect the network operational condition more accurately, a new water network macroscopic model is developed by taking the auto-control adjusting valve opening state into consideration. Then for highly correlated or collinear independent variables in the model, the partial least squares (PLS) regression method provides a model solution which can distinguish between the system information and the noisy data. Finally, a hypothetical water network is introduced for validating the model. The simulation results show that the relative error is less than 5.2%, indicating that the model is efficient and feasible, and has better generalization performance.展开更多
this paper based on the food security, the food the macroeconomic regulation and control of the operation mechanism of the general theory, focus on the China＇s grain macroeconomic regulation and control mechanism, th...this paper based on the food security, the food the macroeconomic regulation and control of the operation mechanism of the general theory, focus on the China＇s grain macroeconomic regulation and control mechanism, the concept of grain macroeconomic regulation and control mechanism, the grain circulation macroeconomic regulation and control tool application, grain circulation macroeconomic regulation and control system, the problem of grain circulation system, food price formation mechanism. Through the research set up grain control of the operation mechanism of general theory.展开更多
this article through to the national food security problems, and puts forward China＇s grain macro-control mechanism is to follow the food economic law, with the national food security as the foundation, the food econ...this article through to the national food security problems, and puts forward China＇s grain macro-control mechanism is to follow the food economic law, with the national food security as the foundation, the food economy structure adjustment as power, based on production and supply balance, trade and consumption balance, price and social grain total cost balance, grain reserves and the retaining rate balance four as the key point, establish and perfect the food security is the core of the production, processing, trade, reserve, consumption for control system, perfect the government macroeconomic regulation and control of the market, protect the food producers and consumers＇ vital interests, early warning and solving the international and domestic food crisis and risk, maintain food markets continue to stability and promote national economic security of food.展开更多
The ultimate objective of sports public service is to pay attention to the development of human beings. It is the absolute trend of health conception pursuit by the growing material and cultural lives of the people. W...The ultimate objective of sports public service is to pay attention to the development of human beings. It is the absolute trend of health conception pursuit by the growing material and cultural lives of the people. When the modem society is interpreting the concept, the connotation and the development objective of sports public services, it conforms to the scientific concept of development that takes humans as essentials. With the target of the development of three stages, it realizes the service system at which the government macro-control and all sectors of society mutually participate. In addition, it also realizes the service system in which the rural-urban sports public service develops with the characteristics of diversification, multi-subjects and multi-centers. These are to be gradually realized on the perspectives of management mode, supply mode, and operation mechanism as well as the social guarantee mechanism, etc. In this way, the sports public service in our country is ensured to develop gradually and stably.展开更多
Overall reflection on the thirty years of reform and opening up from the perspective of Marxist philosophy will demonstrate that every policy involved in this undertaking has undergone a process of the negation of neg...Overall reflection on the thirty years of reform and opening up from the perspective of Marxist philosophy will demonstrate that every policy involved in this undertaking has undergone a process of the negation of negation that includes the phases of affirmation, negation and integration. A new round of integration on a higher level can only be assured by a new round of the negation of negation targeting new contradictions. In making a dialectical evaluation of these three decades, we should not only fully acknowledge the great achievements of this period, but also recognize the problems and underlying risks, such as the contradictions between the productive forces and relations of production, the economic foundation and the superstructure, and ideology and social being, as well as those within the productive forces and the relations of production. With regard to the mechanism of economic operation, we need to place a renewed emphasis on the state＇s role in macroeconomic regulation at the same time as we carry out market-oriented reform. In respect of the ownership structure, we need a renewed emphasis on ＂public ownership as the mainstay＂ while different forms of ownership continue to develop together. And when it comes to distribution relations, ＂letting some people get rich first＂ should be changed to ＂attaching greater importance to social equity.＂展开更多
基金Supported by Tianjin Natural Science Foundation( No. 003611611).
文摘In order to overcome the low precision and weak applicability problems of the current municipal water network state simulation model, the water network structure is studied. Since the telemetry system has been applied increasingly in the water network, and in order to reflect the network operational condition more accurately, a new water network macroscopic model is developed by taking the auto-control adjusting valve opening state into consideration. Then for highly correlated or collinear independent variables in the model, the partial least squares (PLS) regression method provides a model solution which can distinguish between the system information and the noisy data. Finally, a hypothetical water network is introduced for validating the model. The simulation results show that the relative error is less than 5.2%, indicating that the model is efficient and feasible, and has better generalization performance.
文摘this paper based on the food security, the food the macroeconomic regulation and control of the operation mechanism of the general theory, focus on the China＇s grain macroeconomic regulation and control mechanism, the concept of grain macroeconomic regulation and control mechanism, the grain circulation macroeconomic regulation and control tool application, grain circulation macroeconomic regulation and control system, the problem of grain circulation system, food price formation mechanism. Through the research set up grain control of the operation mechanism of general theory.
文摘this article through to the national food security problems, and puts forward China＇s grain macro-control mechanism is to follow the food economic law, with the national food security as the foundation, the food economy structure adjustment as power, based on production and supply balance, trade and consumption balance, price and social grain total cost balance, grain reserves and the retaining rate balance four as the key point, establish and perfect the food security is the core of the production, processing, trade, reserve, consumption for control system, perfect the government macroeconomic regulation and control of the market, protect the food producers and consumers＇ vital interests, early warning and solving the international and domestic food crisis and risk, maintain food markets continue to stability and promote national economic security of food.
文摘The ultimate objective of sports public service is to pay attention to the development of human beings. It is the absolute trend of health conception pursuit by the growing material and cultural lives of the people. When the modem society is interpreting the concept, the connotation and the development objective of sports public services, it conforms to the scientific concept of development that takes humans as essentials. With the target of the development of three stages, it realizes the service system at which the government macro-control and all sectors of society mutually participate. In addition, it also realizes the service system in which the rural-urban sports public service develops with the characteristics of diversification, multi-subjects and multi-centers. These are to be gradually realized on the perspectives of management mode, supply mode, and operation mechanism as well as the social guarantee mechanism, etc. In this way, the sports public service in our country is ensured to develop gradually and stably.
文摘Overall reflection on the thirty years of reform and opening up from the perspective of Marxist philosophy will demonstrate that every policy involved in this undertaking has undergone a process of the negation of negation that includes the phases of affirmation, negation and integration. A new round of integration on a higher level can only be assured by a new round of the negation of negation targeting new contradictions. In making a dialectical evaluation of these three decades, we should not only fully acknowledge the great achievements of this period, but also recognize the problems and underlying risks, such as the contradictions between the productive forces and relations of production, the economic foundation and the superstructure, and ideology and social being, as well as those within the productive forces and the relations of production. With regard to the mechanism of economic operation, we need to place a renewed emphasis on the state＇s role in macroeconomic regulation at the same time as we carry out market-oriented reform. In respect of the ownership structure, we need a renewed emphasis on ＂public ownership as the mainstay＂ while different forms of ownership continue to develop together. And when it comes to distribution relations, ＂letting some people get rich first＂ should be changed to ＂attaching greater importance to social equity.＂
