A senior fellow at Brookings recently published an article titles as'Setting the Record Straight on China’s Engagement in Africa',pointing out the actual share of Chinese investment in Africa as well as its i...A senior fellow at Brookings recently published an article titles as'Setting the Record Straight on China’s Engagement in Africa',pointing out the actual share of Chinese investment in Africa as well as its impact on the continent.David Dollar,the research fellow,explained that Chinese investment represents less than 5%of the total volume of foreign investment in Africa,defying accusations that China is buying up the continent with an overwhelming展开更多
Ⅰ.IntroductionTrade-related investment measures(TRIMs)have become a subject of con-siderable contention in North-South economic relations.The central concernof the debate has been the impact of national foreign-direc...Ⅰ.IntroductionTrade-related investment measures(TRIMs)have become a subject of con-siderable contention in North-South economic relations.The central concernof the debate has been the impact of national foreign-direct-investment regula-tions on international trade flows.This paper tempts to analyze some of the TRIMs in the context of the Ge-neral Agreement on Tariffs and Trade(GATT),their negative effects as展开更多
Ecological network(EN)identification and optimization is an essential research tool for safeguarding regional ecological security patterns and planning territorial space.Especially for the ecologically fragile inland ...Ecological network(EN)identification and optimization is an essential research tool for safeguarding regional ecological security patterns and planning territorial space.Especially for the ecologically fragile inland river basins,EN optimization is of significance in ensuring regional ecological security and virtuous cycle of ecosystems.In addition,EN is a dynamically changing structural system that is more applicable to the regional development by optimizing it from comprehensive future development perspective.EN of Shiyang River basin was constructed on account of the circuit theory,and land use/cover changes(LUCC)of the basin in 2035 was predicted by PLUS model,so as to explore the ecological conservation priorities and formulate optimization strategies.54 ecological sources(ESs)were identified,covering an area of 12,198 km^(2),mainly in the southern basin.133 ecological corridors(ECs)with an area of 3,176.92 km^(2)were extracted.38 ecological pinchpoints(EPs)and 22 ecological barriers(EBs)were identified respectively,which were mainly distributed in the lower basin.To effectively enhance the connectivity of EN in Minqin County,which has the worst ecological environment,we added five stepping stones based on the Ant Forest project.In addition,the optimal EPS is selected according to the development and limitation needs of inland river basins and the threat degree of warning points(WPs)under different scenarios.Scientific and reasonable optimization of future urban layout to prevent WPs can effectively alleviate the contradiction between ecological protection and economic development.The study is intended to provide basis for ecological sustainable development and rational planning territorial space in Shiyang River basin,as well as opinion for EN optimization in inland river basin.展开更多
By consideration of the characteristics of martensitic transformation and the derivation from the application of the group theory to martensitic transformation, it may be concluded that the shape memory effect (SME) c...By consideration of the characteristics of martensitic transformation and the derivation from the application of the group theory to martensitic transformation, it may be concluded that the shape memory effect (SME) can be attained in materials through a martensitic transformation and its reverse transformation. only when there forms single or nearly single variant of martensite, with an absence of the factors causing the generation of the resistance against SME. on this principle, various shape memory materials including nonferrous alloys. iron-based alloys and ceramics containjng zirconia are expected to be further developed. A criterion for thermoelastic martensitic transformation is presented, Factors which may act as the resistance against SME in various materials are briefly described展开更多
1. The present manufacturing situation of China’s thermal power generation equipment By the year 1995. development of China’s electric power industry has experienced a course of a hundred years. Over a period of the...1. The present manufacturing situation of China’s thermal power generation equipment By the year 1995. development of China’s electric power industry has experienced a course of a hundred years. Over a period of the initial 50 years. China’s development of electric power was slow. At the time of 1949, the total installed capacity in China was 1,850 MW and the electricity generated was only 4.3 billion kWh. During the past 46 years after 1949, her展开更多
Both being two developing countries with a vast territory, dense population, and centuries-old ancient civilization, China and India have many in common in natural resources, population size, historical condition, cur...Both being two developing countries with a vast territory, dense population, and centuries-old ancient civilization, China and India have many in common in natural resources, population size, historical condition, current economic issues, etc. except for regime. The competition between China and India is a typical one between economic institutions. This paper, by making a diachronic analysis on their courses of development, tries to justify the importance of adopting an economic institution suitable to the situation of a country.展开更多
I.Introduction Haiti is the poorest country in Latin America and the Caribbean,with 78%of the population living below the $2 per day poverty line,and 50% surviving or less than$1 per day(Kamil,2009).This situation bec...I.Introduction Haiti is the poorest country in Latin America and the Caribbean,with 78%of the population living below the $2 per day poverty line,and 50% surviving or less than$1 per day(Kamil,2009).This situation became especially worse after the devastating earthquake.From observing the rankings and indicators announced by展开更多
Tea is a famous beverage that is produced from leaves of Camellia sinensis.Amongst the six major tea categories in China,dark tea is the only one that involves microbial fermentation in the manufacturing process,which...Tea is a famous beverage that is produced from leaves of Camellia sinensis.Amongst the six major tea categories in China,dark tea is the only one that involves microbial fermentation in the manufacturing process,which contributes unique flavors and functions for the tea.In the recent decade,the reports about the biofunctions of dark teas have increased rapidly.Therefore it may be the proper time to consider dark tea as one potential homology of medicine and food.In this viewpoint,our current understanding of the chemical constituents,biological activities and possible health beneficial effects of dark teas were introduced.Some future directions and challenges to the development perspectives of dark teas were also discussed.展开更多
Green technology innovation meets the dual expectation of innovative development and green development perspectives.Under the canonical demand-pull and policy-push theories,a long-term mechanism for green technology i...Green technology innovation meets the dual expectation of innovative development and green development perspectives.Under the canonical demand-pull and policy-push theories,a long-term mechanism for green technology innovation could be formed through upstream policy push and downstream demand-pull.Leveraging China's regional carbon emission trading scheme pilots as a quasi-natural experiment,this paper examines the policy-push and demand-pull effects on innovation in renewable energy patents.The data pertain to the city-level renewable energy patents from 2000 to 2020.Based upon the triple difference-in-difference method,results suggest that both policy-push and demandpull factors exert positive effects on innovation.This paper further explores the practical and theoretical implications of green technology innovation under the new development perspective.展开更多
基金the periodical achievement of the Major Project of 2015 National Social Science Fund in China(The First Batch)"International and Strategic Studies on Sino-African Relations"(Grant No.15ZDA066)
文摘A senior fellow at Brookings recently published an article titles as'Setting the Record Straight on China’s Engagement in Africa',pointing out the actual share of Chinese investment in Africa as well as its impact on the continent.David Dollar,the research fellow,explained that Chinese investment represents less than 5%of the total volume of foreign investment in Africa,defying accusations that China is buying up the continent with an overwhelming
文摘Ⅰ.IntroductionTrade-related investment measures(TRIMs)have become a subject of con-siderable contention in North-South economic relations.The central concernof the debate has been the impact of national foreign-direct-investment regula-tions on international trade flows.This paper tempts to analyze some of the TRIMs in the context of the Ge-neral Agreement on Tariffs and Trade(GATT),their negative effects as
基金funded by the National Natural Science Foundation of China(Grant No.42101276)。
文摘Ecological network(EN)identification and optimization is an essential research tool for safeguarding regional ecological security patterns and planning territorial space.Especially for the ecologically fragile inland river basins,EN optimization is of significance in ensuring regional ecological security and virtuous cycle of ecosystems.In addition,EN is a dynamically changing structural system that is more applicable to the regional development by optimizing it from comprehensive future development perspective.EN of Shiyang River basin was constructed on account of the circuit theory,and land use/cover changes(LUCC)of the basin in 2035 was predicted by PLUS model,so as to explore the ecological conservation priorities and formulate optimization strategies.54 ecological sources(ESs)were identified,covering an area of 12,198 km^(2),mainly in the southern basin.133 ecological corridors(ECs)with an area of 3,176.92 km^(2)were extracted.38 ecological pinchpoints(EPs)and 22 ecological barriers(EBs)were identified respectively,which were mainly distributed in the lower basin.To effectively enhance the connectivity of EN in Minqin County,which has the worst ecological environment,we added five stepping stones based on the Ant Forest project.In addition,the optimal EPS is selected according to the development and limitation needs of inland river basins and the threat degree of warning points(WPs)under different scenarios.Scientific and reasonable optimization of future urban layout to prevent WPs can effectively alleviate the contradiction between ecological protection and economic development.The study is intended to provide basis for ecological sustainable development and rational planning territorial space in Shiyang River basin,as well as opinion for EN optimization in inland river basin.
文摘By consideration of the characteristics of martensitic transformation and the derivation from the application of the group theory to martensitic transformation, it may be concluded that the shape memory effect (SME) can be attained in materials through a martensitic transformation and its reverse transformation. only when there forms single or nearly single variant of martensite, with an absence of the factors causing the generation of the resistance against SME. on this principle, various shape memory materials including nonferrous alloys. iron-based alloys and ceramics containjng zirconia are expected to be further developed. A criterion for thermoelastic martensitic transformation is presented, Factors which may act as the resistance against SME in various materials are briefly described
文摘1. The present manufacturing situation of China’s thermal power generation equipment By the year 1995. development of China’s electric power industry has experienced a course of a hundred years. Over a period of the initial 50 years. China’s development of electric power was slow. At the time of 1949, the total installed capacity in China was 1,850 MW and the electricity generated was only 4.3 billion kWh. During the past 46 years after 1949, her
文摘Both being two developing countries with a vast territory, dense population, and centuries-old ancient civilization, China and India have many in common in natural resources, population size, historical condition, current economic issues, etc. except for regime. The competition between China and India is a typical one between economic institutions. This paper, by making a diachronic analysis on their courses of development, tries to justify the importance of adopting an economic institution suitable to the situation of a country.
文摘I.Introduction Haiti is the poorest country in Latin America and the Caribbean,with 78%of the population living below the $2 per day poverty line,and 50% surviving or less than$1 per day(Kamil,2009).This situation became especially worse after the devastating earthquake.From observing the rankings and indicators announced by
基金supported by the Fund of Anhui Key Research and Development Program(No.202104a06020009)the Fund of Natural Science Research Project of Anhui Colleges and Universities(No.YJS20210245).
文摘Tea is a famous beverage that is produced from leaves of Camellia sinensis.Amongst the six major tea categories in China,dark tea is the only one that involves microbial fermentation in the manufacturing process,which contributes unique flavors and functions for the tea.In the recent decade,the reports about the biofunctions of dark teas have increased rapidly.Therefore it may be the proper time to consider dark tea as one potential homology of medicine and food.In this viewpoint,our current understanding of the chemical constituents,biological activities and possible health beneficial effects of dark teas were introduced.Some future directions and challenges to the development perspectives of dark teas were also discussed.
基金sponsored by the project “Economic and Environmental Assessment of Carbon Emission Trading Scheme:Theory and Evidence from China Firm-Level Data”(No. 72073055) of the National Natural Science Foundation of ChinaQinglan Project of Jiangsu Province
文摘Green technology innovation meets the dual expectation of innovative development and green development perspectives.Under the canonical demand-pull and policy-push theories,a long-term mechanism for green technology innovation could be formed through upstream policy push and downstream demand-pull.Leveraging China's regional carbon emission trading scheme pilots as a quasi-natural experiment,this paper examines the policy-push and demand-pull effects on innovation in renewable energy patents.The data pertain to the city-level renewable energy patents from 2000 to 2020.Based upon the triple difference-in-difference method,results suggest that both policy-push and demandpull factors exert positive effects on innovation.This paper further explores the practical and theoretical implications of green technology innovation under the new development perspective.
