Based on the strategies for mral revitalization proposed in the 19th National Congtess report and 2018 No.l Document of CPC Central Committee, combined with the current situation of rural environmental pollution ...Based on the strategies for mral revitalization proposed in the 19th National Congtess report and 2018 No.l Document of CPC Central Committee, combined with the current situation of rural environmental pollution in China, tiiis paper first elaborated die connotation of rural ecological landscapes, and analyzed the structure, fimctions, and values of rural landscape ecology. The principle of building rural landscape ecology under the strategy of rural revitalization was studied. Finally, the methods and approaches of rural landscape ecological construction under the strategy of rural revitalization were studied.展开更多
Compared with traditional bank protection, ecological revetments, as a new type of bank protection, can ensure the sustainable and healthy development of river ecology and has broad application prospects. In this pape...Compared with traditional bank protection, ecological revetments, as a new type of bank protection, can ensure the sustainable and healthy development of river ecology and has broad application prospects. In this paper, the design principles for ecological revetments and the factors that need to be considered in the selection of revetment plants were summarized; and the types of ecological revetments commonly used in water conservancy projects were summarized and classified according to the proportion of natural materials in revetment materials through domestic and foreign research and engineering examples, and their applicable scope and relevant merits were introduced. In conclusion, ecological revetments should get rid of its own limitations in the practical application process, and the river regulation scheme and revetment type should be selected comprehensively and flexibly combined with the status quo.展开更多
Rapid urbanization has led to an increase o f urban artificial landscapes and the transformation of die earths surface, which has caused the dty to lose its functions of flood control and water purificatioiL There ...Rapid urbanization has led to an increase o f urban artificial landscapes and the transformation of die earths surface, which has caused the dty to lose its functions of flood control and water purificatioiL There are frequent urban flooding and waterlogging, deterioration of water quality in rivets and lakes, and increasing water and environmental problems. In response to these situations, the state proposed the construction of a sponge dty. In this paper, the background and rcsearch significance of the sponge city were expounded, the domestic and foreign related reseatch was summarized, and further thinking about the sponge dty in Chim was put forward, in order to clarify the research context of the sponge dty and provide the basis for tiie later research.展开更多
The regional strategy study was aimed at coal mine disaster control and prevention,which deepens and enriches the macro-strategy of coal mine disaster control andprevention,and provides an important support for the ra...The regional strategy study was aimed at coal mine disaster control and prevention,which deepens and enriches the macro-strategy of coal mine disaster control andprevention,and provides an important support for the rapid and healthy development ofthe regional coal industry.The country was divided into 4 regions:Northeast,North,Southand Xinqing.In view of the regional status of coal mine disasters,the regulation and developmenttrend of regional coal mine disasters were analyzed,the outstanding problemsand key factors were identified,and the general thoughts on regional coal mine disastercontrol and prevention were put forward.展开更多
Thermophoresis is an important mechanism of micro-particle transport due to temperature gradients in the surrounding medium.It has numerous applications,especially in the field of aerosol technology.This study has num...Thermophoresis is an important mechanism of micro-particle transport due to temperature gradients in the surrounding medium.It has numerous applications,especially in the field of aerosol technology.This study has numerically investigated the thermophoretic deposition efficiency of particles in a laminar gas flow in a concentric annulus using the critical trajectory method.The governing equations are the momentum and energy equations for the gas and the particle equations of motion.The effects of the annulus size,particle diameter,the ratio of inner to outer radius of tube and wall temperature on the deposition efficiency were studied for both developing and fully-developed flows.Simulation results suggest that thermophoretic deposition increases by increasing thermal gradient,deposition distance,and the ratio of inner to outer radius,but decreases with increasing particle size.It has been found that by taking into account the effect of developing flow at the entrance region,higher deposition efficiency was obtained,than fully developed flow.展开更多
The marine ecological cultural heritage demonstrates tiie long-standing wisdom of human marine ecological culture. Its effective protection and inheritance is a continuation of the traditional marine ecological lifest...The marine ecological cultural heritage demonstrates tiie long-standing wisdom of human marine ecological culture. Its effective protection and inheritance is a continuation of the traditional marine ecological lifestyle, and is also an important impetus to the current construction of marine ecological civilization in China. The paf ticipation and interaction of cultural origins should be pfomoted, system protection management systems should be continuously improved, policies, reguktions and supporting mechanisms should be improved, and scientific evaluation mechanisms should be established, gradually realizing innovative development.展开更多
Corruption which means the use of public power for private interests is one of the most important problems either in less developed and developing countries or developed countries. Especially in less developed and dev...Corruption which means the use of public power for private interests is one of the most important problems either in less developed and developing countries or developed countries. Especially in less developed and developing countries, corruption is a serious obstacle in front of economic development. Corruption is raised from deficiency in democracy, deficient judgement, unfair elections and dependent media sector includes bribery, embezzlement, forgery, fraud, favouritism, nepotism and illegal beneficial use of public authority. The aim of the paper is to determine the causal relationship between corruption and basic macro-economic indicators. For this purpose, in this study, the basic mic indications such as import, export, budget deficit, manufacturer price index are taken into account as variables to examine their relation with corruption. By getting use of the data obtained from CPI index, the relation between the variables is examined using the T-Test. Furthermore, to determine the causality among all the variables, correllation analysis is applied to present causal relations between the corruption and macro-economic variables. The findings concluded that there is a significant correlation among corruption, manufacturer price index and export-import. However, there is no significant correlation with budget deficit.展开更多
Micro-perspective studies on economic geography in China can be classified into geography of the enterprise, geography of the rural household, and small-scale studies on economic activities. Literature on geography of...Micro-perspective studies on economic geography in China can be classified into geography of the enterprise, geography of the rural household, and small-scale studies on economic activities. Literature on geography of the enterprise includes spatial expansion of the enterprise, industrial location, firm's networks, industrial relocation, industrial clusters, and the relationship between industrial organizations and the environment. Studies on geography of the rural household(GRH) include the theoretical framework of GRH, the locations of rural economic activities, and the interrelation between rural households and geographical environment. Small-scale studies focus on human-land interaction from a land plot perspective, relations between specialized villages and the environment, and regional sustainable development research at site-specific scale. Micro-perspective studies on economic geography attempt to search for the basic unit of economic-geographical landscape, exploring the geographical process and the formation mechanism of geographical phenomena. The exploration of these three perspectives anticipates new approaches to economic-geographical studies with China's special background.展开更多
文摘Based on the strategies for mral revitalization proposed in the 19th National Congtess report and 2018 No.l Document of CPC Central Committee, combined with the current situation of rural environmental pollution in China, tiiis paper first elaborated die connotation of rural ecological landscapes, and analyzed the structure, fimctions, and values of rural landscape ecology. The principle of building rural landscape ecology under the strategy of rural revitalization was studied. Finally, the methods and approaches of rural landscape ecological construction under the strategy of rural revitalization were studied.
文摘Compared with traditional bank protection, ecological revetments, as a new type of bank protection, can ensure the sustainable and healthy development of river ecology and has broad application prospects. In this paper, the design principles for ecological revetments and the factors that need to be considered in the selection of revetment plants were summarized; and the types of ecological revetments commonly used in water conservancy projects were summarized and classified according to the proportion of natural materials in revetment materials through domestic and foreign research and engineering examples, and their applicable scope and relevant merits were introduced. In conclusion, ecological revetments should get rid of its own limitations in the practical application process, and the river regulation scheme and revetment type should be selected comprehensively and flexibly combined with the status quo.
基金Sponsored by Natural Science Project of Sichuan Provincial Department of Education(15ZA0123)Doctoral Fund of Southwest University of Science and Technology(14zx7136)
文摘Rapid urbanization has led to an increase o f urban artificial landscapes and the transformation of die earths surface, which has caused the dty to lose its functions of flood control and water purificatioiL There are frequent urban flooding and waterlogging, deterioration of water quality in rivets and lakes, and increasing water and environmental problems. In response to these situations, the state proposed the construction of a sponge dty. In this paper, the background and rcsearch significance of the sponge city were expounded, the domestic and foreign related reseatch was summarized, and further thinking about the sponge dty in Chim was put forward, in order to clarify the research context of the sponge dty and provide the basis for tiie later research.
基金Supported by the National Key Technology R&D Program in 11th Five Years Plan of China(2006BAK03B07)
文摘The regional strategy study was aimed at coal mine disaster control and prevention,which deepens and enriches the macro-strategy of coal mine disaster control andprevention,and provides an important support for the rapid and healthy development ofthe regional coal industry.The country was divided into 4 regions:Northeast,North,Southand Xinqing.In view of the regional status of coal mine disasters,the regulation and developmenttrend of regional coal mine disasters were analyzed,the outstanding problemsand key factors were identified,and the general thoughts on regional coal mine disastercontrol and prevention were put forward.
文摘Thermophoresis is an important mechanism of micro-particle transport due to temperature gradients in the surrounding medium.It has numerous applications,especially in the field of aerosol technology.This study has numerically investigated the thermophoretic deposition efficiency of particles in a laminar gas flow in a concentric annulus using the critical trajectory method.The governing equations are the momentum and energy equations for the gas and the particle equations of motion.The effects of the annulus size,particle diameter,the ratio of inner to outer radius of tube and wall temperature on the deposition efficiency were studied for both developing and fully-developed flows.Simulation results suggest that thermophoretic deposition increases by increasing thermal gradient,deposition distance,and the ratio of inner to outer radius,but decreases with increasing particle size.It has been found that by taking into account the effect of developing flow at the entrance region,higher deposition efficiency was obtained,than fully developed flow.
基金Sponsored by Post-Doctoral Applied Research Project of Qingdao(861605040100)
文摘The marine ecological cultural heritage demonstrates tiie long-standing wisdom of human marine ecological culture. Its effective protection and inheritance is a continuation of the traditional marine ecological lifestyle, and is also an important impetus to the current construction of marine ecological civilization in China. The paf ticipation and interaction of cultural origins should be pfomoted, system protection management systems should be continuously improved, policies, reguktions and supporting mechanisms should be improved, and scientific evaluation mechanisms should be established, gradually realizing innovative development.
文摘Corruption which means the use of public power for private interests is one of the most important problems either in less developed and developing countries or developed countries. Especially in less developed and developing countries, corruption is a serious obstacle in front of economic development. Corruption is raised from deficiency in democracy, deficient judgement, unfair elections and dependent media sector includes bribery, embezzlement, forgery, fraud, favouritism, nepotism and illegal beneficial use of public authority. The aim of the paper is to determine the causal relationship between corruption and basic macro-economic indicators. For this purpose, in this study, the basic mic indications such as import, export, budget deficit, manufacturer price index are taken into account as variables to examine their relation with corruption. By getting use of the data obtained from CPI index, the relation between the variables is examined using the T-Test. Furthermore, to determine the causality among all the variables, correllation analysis is applied to present causal relations between the corruption and macro-economic variables. The findings concluded that there is a significant correlation among corruption, manufacturer price index and export-import. However, there is no significant correlation with budget deficit.
基金National Natural Science Foundation of China,No.41471117,No.41201131
文摘Micro-perspective studies on economic geography in China can be classified into geography of the enterprise, geography of the rural household, and small-scale studies on economic activities. Literature on geography of the enterprise includes spatial expansion of the enterprise, industrial location, firm's networks, industrial relocation, industrial clusters, and the relationship between industrial organizations and the environment. Studies on geography of the rural household(GRH) include the theoretical framework of GRH, the locations of rural economic activities, and the interrelation between rural households and geographical environment. Small-scale studies focus on human-land interaction from a land plot perspective, relations between specialized villages and the environment, and regional sustainable development research at site-specific scale. Micro-perspective studies on economic geography attempt to search for the basic unit of economic-geographical landscape, exploring the geographical process and the formation mechanism of geographical phenomena. The exploration of these three perspectives anticipates new approaches to economic-geographical studies with China's special background.
