This paper, based on the investigation of the statistics in the years of 1980-2005, using Shift-Share Method model, studies systematically the relation between the evolution of industrial structure and regional econom...This paper, based on the investigation of the statistics in the years of 1980-2005, using Shift-Share Method model, studies systematically the relation between the evolution of industrial structure and regional economic growth in five economic regions in He＇nan to offer the foundation of policy for optimizing the industrial structure and promoting regional economic development in phase, and thereby comes to the conclusions： （1） the industrial structure level of He＇nan, in comparison with the evolution of the industrial structure across the country, remains low, but yet the evolutional tendency of industrial structure in He＇nan complies with the Clark taw of the industrial structure evolution; （2） the spatial difference of He＇nan industrial structure evolution is comparatively large, （3） the evolution of industrial structure in He nan that influences economic growth can be categorized into three types： in eastern and southern regions, the shift-share of the industrial structure is negative, and the shift-share model of competitiveness is negative, in western and central regions, the shift.share of the industrial structure is positive, and the shift-share model of competitiveness is positive; in northern regions; the shift-share of the industrial structure is positive, and the shift-share model of competitiveness is negative： （4） the evolution of industriai structure influences greatly the development of the regional economy of He nan As the results of the researches shown, it can innovation of He＇nan tra：ditional industry with high-tech the vast development of the tertiary industry, the expansion of He＇nan overall level o industrial structure, the growth of deep-processing manufacturing of agricultural products, and the increase of He＇nan agricultural products subsidiary value Will be the strategic choices of the rearrangement of He＇nan industrial structure.展开更多
Herein is introduced the mechanism for active control influencing the generation of the near-wall streamwise vortices,which are closely related to the production of high skin friction in wall-bounded turbulent flows.A...Herein is introduced the mechanism for active control influencing the generation of the near-wall streamwise vortices,which are closely related to the production of high skin friction in wall-bounded turbulent flows.A new opposition control scheme with adjusting control amplitude is proposed and evaluated in turbulent channel flow by direct numerical simulations.The maximum drag reduction rate can be greatly enhanced by the strengthened control.Finally the effectiveness of the control to the coherent structures at high Reynolds numbers is investigated by using a linear transient growth model.展开更多
基金supported by National Natural Sci-ence Foundation of China (Grant No.70173022).
文摘This paper, based on the investigation of the statistics in the years of 1980-2005, using Shift-Share Method model, studies systematically the relation between the evolution of industrial structure and regional economic growth in five economic regions in He＇nan to offer the foundation of policy for optimizing the industrial structure and promoting regional economic development in phase, and thereby comes to the conclusions： （1） the industrial structure level of He＇nan, in comparison with the evolution of the industrial structure across the country, remains low, but yet the evolutional tendency of industrial structure in He＇nan complies with the Clark taw of the industrial structure evolution; （2） the spatial difference of He＇nan industrial structure evolution is comparatively large, （3） the evolution of industrial structure in He nan that influences economic growth can be categorized into three types： in eastern and southern regions, the shift-share of the industrial structure is negative, and the shift-share model of competitiveness is negative, in western and central regions, the shift.share of the industrial structure is positive, and the shift-share model of competitiveness is positive; in northern regions; the shift-share of the industrial structure is positive, and the shift-share model of competitiveness is negative： （4） the evolution of industriai structure influences greatly the development of the regional economy of He nan As the results of the researches shown, it can innovation of He＇nan tra：ditional industry with high-tech the vast development of the tertiary industry, the expansion of He＇nan overall level o industrial structure, the growth of deep-processing manufacturing of agricultural products, and the increase of He＇nan agricultural products subsidiary value Will be the strategic choices of the rearrangement of He＇nan industrial structure.
基金Tsupported by the National Natural Science Foundation of China (Grant Nos. 10925210 and 11132005)
文摘Herein is introduced the mechanism for active control influencing the generation of the near-wall streamwise vortices,which are closely related to the production of high skin friction in wall-bounded turbulent flows.A new opposition control scheme with adjusting control amplitude is proposed and evaluated in turbulent channel flow by direct numerical simulations.The maximum drag reduction rate can be greatly enhanced by the strengthened control.Finally the effectiveness of the control to the coherent structures at high Reynolds numbers is investigated by using a linear transient growth model.
