The paper tries to explore circular economy from the viewpoint of the system theory. Circular economy is a kind of complicated economic activity, and it is a wholly new ecotype economy proposed by Western countries af...The paper tries to explore circular economy from the viewpoint of the system theory. Circular economy is a kind of complicated economic activity, and it is a wholly new ecotype economy proposed by Western countries after they had summed up many experiences and lessons from traditional economy. It is an entirety and has many layers. It keeps an open and dynamic balance. Because the system theory is the theoretical foundation of circular economy, we should systemically analyze and study circular economy from the macroscopic view, correctly grasp its operational laws, improve its service functions, and realize human beings' sustainable development. The paper introduces the content and general characteristics of the system theory and the idea of circular economy. Then it analyzes circular economy based on the system theory. The paper concludes that the integration of circular economy and the system theory can promote the functions of circular economy.展开更多
The anti-synchronization between different chaotic/hyperchaotic systems with fully unknown parameters is considered in detail. Based on Lyapunov stability theory, the adaptive control schemes and parameter update rule...The anti-synchronization between different chaotic/hyperchaotic systems with fully unknown parameters is considered in detail. Based on Lyapunov stability theory, the adaptive control schemes and parameter update rules are designed in this paper. Two numerical examples show the effectiveness and feasibility of the proposed method.展开更多
The System Resource Constraint Theory intends to research growth of economy under different classes of system resource constraint. By analogy between ecology system and economic system, from the angle of total nature ...The System Resource Constraint Theory intends to research growth of economy under different classes of system resource constraint. By analogy between ecology system and economic system, from the angle of total nature resource, total supply ability and total market volume, the theory focuses on the constraint condition and development characteristic of economy as well as the various game characteristics among economies such as independence, competition, and joint competition. According to the math deduction, the author finds that Logistic model is relative with Marthus＇s model and Zero-growth model.展开更多
There exist diferences between urban-rural financial systems,Generally,the development of unban financial industry has absolute advanages compared with rural financial industry.According to the Matthew Effect,the fina...There exist diferences between urban-rural financial systems,Generally,the development of unban financial industry has absolute advanages compared with rural financial industry.According to the Matthew Effect,the financial resources will flow into cities for higher benefit ,so rural areas are unable to obtain absolute advantages However,relative advantage theory of the comparative advantage theory of the comparative advantage theory provides an lmportant way to observe res[ectove advamtage of both city and country.Therefore,there are comparative advantages for the development of financial industry in both urban and rural areas.The respective comparative advantages of urban-rural financial systems will supply greater efficiency than that in current dual puttern condition.Closely connected with China＇s financial development and reform and the fact of recreation of urban-rural financial system,this paper tries to explain the comparative advantage of the urban-rural financial systems.The anaalysis of the comparative advantage between urban and rural finance is the clue for the bonndary between urban-rural financial systems.This paper analyzes the current situration of urban-rural financial system.Then it proposes some views and suggestions on how to develop and maintain these two systemw as well as how to promote their coordinative development.展开更多
With the continuous development of human society, the damage to the natural environment is becoming increasingly large, causing crisis events to occur frequently. In recent years, the study of community resilience is ...With the continuous development of human society, the damage to the natural environment is becoming increasingly large, causing crisis events to occur frequently. In recent years, the study of community resilience is becoming popular among scholars because of its perspective on disaster prevention and mitigation. In this study, we apply database retrieval to untangle community resilience-related papers from multiple directions. We analyze the connotation, attribute, and composition of community, resilience, and community resilience comprehensively by summarizing important issues and research progress in community resilience. Challenges and shortcomings faced by community resilience development are also determined. Moreover, we put forward the research directions that future research can focus on. Through literature review, current research on community resilience focuses on the following aspects: "infrastructure construction," "crowd in the community," "economic resilience,""social capital," and "measurement of community resilience." Such research is not yet systematic and relatively decentralized. The attention to collective resilience in the community is relatively weak, which makes achieving the goal of "people-oriented and systematic control" difficult.Therefore, this study states that the development of future community resilience should stand from the perspective of"system of system" and build on knowledge and tools of various relevant domains. Therefore, public needs and participation are highlighted as breakthrough points. The research should integrate infrastructure and economic resilience, social resource allocation, network connection,and other aspects to build a holistic and functional resilient community.展开更多
基金supported by national soft science item of sciencetechnology department in China (Grant No: 2005DGQ4D130).
文摘The paper tries to explore circular economy from the viewpoint of the system theory. Circular economy is a kind of complicated economic activity, and it is a wholly new ecotype economy proposed by Western countries after they had summed up many experiences and lessons from traditional economy. It is an entirety and has many layers. It keeps an open and dynamic balance. Because the system theory is the theoretical foundation of circular economy, we should systemically analyze and study circular economy from the macroscopic view, correctly grasp its operational laws, improve its service functions, and realize human beings' sustainable development. The paper introduces the content and general characteristics of the system theory and the idea of circular economy. Then it analyzes circular economy based on the system theory. The paper concludes that the integration of circular economy and the system theory can promote the functions of circular economy.
基金Supported by National Natural Science Foundation of China(No.60874113)
文摘The anti-synchronization between different chaotic/hyperchaotic systems with fully unknown parameters is considered in detail. Based on Lyapunov stability theory, the adaptive control schemes and parameter update rules are designed in this paper. Two numerical examples show the effectiveness and feasibility of the proposed method.
文摘The System Resource Constraint Theory intends to research growth of economy under different classes of system resource constraint. By analogy between ecology system and economic system, from the angle of total nature resource, total supply ability and total market volume, the theory focuses on the constraint condition and development characteristic of economy as well as the various game characteristics among economies such as independence, competition, and joint competition. According to the math deduction, the author finds that Logistic model is relative with Marthus＇s model and Zero-growth model.
文摘There exist diferences between urban-rural financial systems,Generally,the development of unban financial industry has absolute advanages compared with rural financial industry.According to the Matthew Effect,the financial resources will flow into cities for higher benefit ,so rural areas are unable to obtain absolute advantages However,relative advantage theory of the comparative advantage theory of the comparative advantage theory provides an lmportant way to observe res[ectove advamtage of both city and country.Therefore,there are comparative advantages for the development of financial industry in both urban and rural areas.The respective comparative advantages of urban-rural financial systems will supply greater efficiency than that in current dual puttern condition.Closely connected with China＇s financial development and reform and the fact of recreation of urban-rural financial system,this paper tries to explain the comparative advantage of the urban-rural financial systems.The anaalysis of the comparative advantage between urban and rural finance is the clue for the bonndary between urban-rural financial systems.This paper analyzes the current situration of urban-rural financial system.Then it proposes some views and suggestions on how to develop and maintain these two systemw as well as how to promote their coordinative development.
基金funded by the National Key R&D Program of China(Grant No.2017YFC0803308)Humanities and Social Science Foundation of the Ministry of Education of China(Grant No.13YJCZH129)+1 种基金National Natural Science Foundation of China(Grant Nos.U1709212,71741023 and 71741025)Tsinghua University Initiative Scientific Research Program(Grant Nos.2014z21050 and 2015THZ0)
文摘With the continuous development of human society, the damage to the natural environment is becoming increasingly large, causing crisis events to occur frequently. In recent years, the study of community resilience is becoming popular among scholars because of its perspective on disaster prevention and mitigation. In this study, we apply database retrieval to untangle community resilience-related papers from multiple directions. We analyze the connotation, attribute, and composition of community, resilience, and community resilience comprehensively by summarizing important issues and research progress in community resilience. Challenges and shortcomings faced by community resilience development are also determined. Moreover, we put forward the research directions that future research can focus on. Through literature review, current research on community resilience focuses on the following aspects: "infrastructure construction," "crowd in the community," "economic resilience,""social capital," and "measurement of community resilience." Such research is not yet systematic and relatively decentralized. The attention to collective resilience in the community is relatively weak, which makes achieving the goal of "people-oriented and systematic control" difficult.Therefore, this study states that the development of future community resilience should stand from the perspective of"system of system" and build on knowledge and tools of various relevant domains. Therefore, public needs and participation are highlighted as breakthrough points. The research should integrate infrastructure and economic resilience, social resource allocation, network connection,and other aspects to build a holistic and functional resilient community.
