The study profiles and explains the significant changes that have taken place in China's spatial development patterns since the inception of its economic reform and opening two decades ago. Principal component an...The study profiles and explains the significant changes that have taken place in China's spatial development patterns since the inception of its economic reform and opening two decades ago. Principal component analysis is used to delineate spatial patterns. The analyses show that prior to the reform China's spatial development pattern was characterized by the dominance of the three municipalities and the Northeast, as well as by both the coast-interior and the north-south disparities. Northern provinces were generally more industrialized and economically powerful than the southern ones. After two decades of reform, regional development has become multi-centered with South China, the Yangtze Delta and the Beijing-Tianjin area being the three most important regions of the country. The coastal provinces as a whole rose to prominence on China's economic map while the Northeast has diminished its clout. The coast-interior gap not only remains but may have widened. The north-south disparity also still exists but there has been a role reversal with the south now in the lead position. Virtually all inland provinces now find themselves at or near the low end of the development spectrum. We argue that the major reason for the recent shifts in Chinese space economy is the spatially differentiated economic growth resulted from the reform and open door policy and from the new, uneven development strategy adopted by the Chinese government. The paper discusses four specific factors that have reshaped China's spatial development patterns.展开更多
Through reviewing different development phases of transportation and communication facilities as well as their profound influence on the evolution of urban spatial pattern,it was disclosed that the development and imp...Through reviewing different development phases of transportation and communication facilities as well as their profound influence on the evolution of urban spatial pattern,it was disclosed that the development and improvement of information network communication would bring fundamental transformation of urban basic functions which would take effect through the usage of urban land,and finally lead to the spatial pattern reform of the whole city.展开更多
This study aimed to demonstrate change in spatial correlation between Korean pine （Pinus koraiensis Sieb. et Zucc.） and three rare species, and change in spatial distribution of four species in response to a range o...This study aimed to demonstrate change in spatial correlation between Korean pine （Pinus koraiensis Sieb. et Zucc.） and three rare species, and change in spatial distribution of four species in response to a range of selective cutting intensities. We sampled three plots of mixed Korean pine and broad-leaf forest in Lushuihe Forestry Bureau of Jilin province, China. Plot 1, a control, was unlogged Korean pine broad-leaf forest. In plots 2 and 3, Korean pine was selectively cut at 15 and 30 % intensity, respectively, in the 1970s. Other species were rarely cut. We used point-pattern analysis to research the spatial distributions of four tree species and quantify spatial correlations between Korean pine and the other three species, Amur linden （Tilia amurensis Rupr.）, Manchurian ash （Fraxinus mandshurica Rupr.）, and Mongolian oak （Quercus mongolica Fisch.） in all three plots. The results of the study show that selective cutting at 15 % intensity did not significantly change either the species spatial patterns or the spatial correlation between Korean pine and broadleaf species. Selective cutting at 30 % intensity slightly affected the growth of Korean pine and valuable species in forest communities, and the effect was considered nondestructive and recoverable.展开更多
[ Objectivel The paper aimed to investigate the expression pattern of bbu-miR-103-1 in buffalo （Bubalus bubalis） at lactation and non-lactation periods, and to predict its target gene and function. [ Method] Express...[ Objectivel The paper aimed to investigate the expression pattern of bbu-miR-103-1 in buffalo （Bubalus bubalis） at lactation and non-lactation periods, and to predict its target gene and function. [ Method] Expression pattern of bbu-miR-103-1 at lactation and non-lactation periods were detected by qRT-PCR. The precursor expression plasmid of bbu-miR-103-1 was constructed and named LpEZX-pre-miR-103-1. It was packaged and propagated to produce high-titer lenti- virus in 293T cell lines, which could be used to infect buffalo mammary epithelial cells （BMECs） and over express bbu-miR-103-1. The inhibitor of bbu-miR- 103-1 was chemically synthesized and transfected into BMECs to suppress bbu-miR-103-1 at the same time. The relative expression of pantothenate kinase 3 （ PANK3 ） and milk fat metabolism related genes were detected by qRT-PCR. [ Result] The relative expression of bbu-miR-103-1 at lactation period was 5.29 times higher than that at non-lactation period in buffalo （ P 〈 0.01 ）. The LpEZX-pre-miR-103-1 had been successfully constructed and packaged with the infection titer of 3.47×10^6 PFU/mL. Overexpress or suppress of bbu-miR-103-1 extremely down-regulated or up-regulated the expression level of PANK3 in BMECs （ P 〈 0.01 ）. Over expression of bbu-miR-103~l extremely enhanced the expression of Acetyl-CoA carboxylase alpha（ACACA）, Glycerol-3-phosphate acyhransferase 1 mitochon- drial （GPAM）, Diacylglycerol Oacyhransferase l （DGAT1） and Pyrnvate dehydrogenase lipoamide kinase isozyme 4 （PDK4） （P 〈0.01 ）, and also significantly up-regulated the expression of sterol regulatory element binding protein-1 c （SREBPI c）, Adipose differentiation-related protein （ADFP）, Cluster of differentiation 36 （ CD36）, Acetyl-CoA synthetase short-chain subfamily member 1 （ACSS1） （P 〈0.05）. Over expression of bbu-miR-103-1 down-regulated the expression of PANK3, and improved the mRNA level of SREBPlc by feedback regulation, finally promoting the de novo synthesis of fatty acid beginning with ACACA. [ Conclusion] bbu-miR-103-1 plays an important role in enhancing milk fatty acid synthesis, which provides a molecular base for revealing formation and regulatory mechanism of high-level milk fat in buffalo.展开更多
Optimization of antenna array pattern used in a spaceborne Synthetic Aperture Radar (SAR) system is considered in this study. A robust evolutionary algorithm, Non-dominated Sorting Genetic Algorithms (the improved NS...Optimization of antenna array pattern used in a spaceborne Synthetic Aperture Radar (SAR) system is considered in this study. A robust evolutionary algorithm, Non-dominated Sorting Genetic Algorithms (the improved NSGA-Ⅱ), is applied on a spaceborne SAR antenna pattern design. The system consists of two objective functions with two constraints. Pareto fronts are generated as a result of multi-objective optimization. After being validated by a test problem ZDT4, the algorithms are used to synthesize spaceborne SAR antenna radiation pattern. The good results with low Ambi- guity-to-Signal Ratio (ASR) and high directivity are obtained in the paper.展开更多
After taking stock of China's four-decade reforms, this paper identifies the cyclical patterns of China's reforms, which consist of an intermediate cycle and three short cycles. The purpose of reform is to adj...After taking stock of China's four-decade reforms, this paper identifies the cyclical patterns of China's reforms, which consist of an intermediate cycle and three short cycles. The purpose of reform is to adjust the changing relations of production to changing productivity. China has adopted a gradualist approach of reform, and reform cycles have coincided with economic cycles. The cyclical changes of reform are of great significance to comprehensively deepening reforms in the new era: Downward pressures of the economy present the best window period for reform;a new cycle of reform will unveil a new economic cycle as well;the people's support is essential to pushing forward the cyclical movements of reform;and top-down design is essential to deepen reforms on all fronts.展开更多
The changing of flow conditions caused by construction of hydro-projects will result in river's refor-mation and development of channel pattern.In this paper,the development of channel pattem in the process ofrefo...The changing of flow conditions caused by construction of hydro-projects will result in river's refor-mation and development of channel pattern.In this paper,the development of channel pattem in the process ofreformation is studied by means of flume experiments.Influence of slope,grain size,angle-of-inflow,dis-charge and discharge process are comprehensively analyzed according to the experimental data.It was foundthat the channel would be widened as the river slope or discharge increased and grain size decreased.If theangle-of-inflow was not zero,under certain conditions of grain size and discharge,a most suitable slope exist-ed,for which the river would develop into a pattem of meandering.Different discharge process would imposeon the change of river morphology,even caused transformation of channel patterns.Diversity in the capacity ofshaping rivers of different discharges especially the flood duration cast a light on the change of channel pattern.展开更多
With the continuous improvement of population and people’s living standard,traditional consumption pattern at the cost of great consumption of resources and energy brought more serious damages to environment and deve...With the continuous improvement of population and people’s living standard,traditional consumption pattern at the cost of great consumption of resources and energy brought more serious damages to environment and development,and became the core of constant deterioration of environmental problems in present world.Therefore,the reform from current traditional consumption pattern to environment-friendly consumption pattern beneficial to sustainable development has become the important theoretical and practical subject at present.The relationship between environmental problems and consumption problems was analyzed firstly,and then the characteristics and disadvantages of traditional consumption pattern were discussed,finally the necessity and ways of constructing environment-friendly consumption pattern were put forward,so as to provide theoretical foundation for the reform of current traditional consumption pattern.展开更多
To meet the development trend of multi-bar warp knit-ting machine towards high-speed,advanced technologyand computer control and the requirements of variousproducts with small quantity,there are many researcheson the ...To meet the development trend of multi-bar warp knit-ting machine towards high-speed,advanced technologyand computer control and the requirements of variousproducts with small quantity,there are many researcheson the computer-aided pattern design of multi-barwarp knitted fabrics.In terms of the special propertiesof the computer-aided pattern design of multi-barwarp knitted fabrics,the Object Oriented Program(OOP)programming-Object Windows class Library(OWL)programming is selected.According to thecharacters of the OWL programming,various functionsare defined.Pattern design and technical parameters canbe output,which offers a great convenience for the fac-tory.展开更多
Sleeve pattern design of men’ s tailored - suit is one of the most difficult problems of clothing pattern design. Based on the experimental studies of armhole girth, the difference of armhole width and crown height, ...Sleeve pattern design of men’ s tailored - suit is one of the most difficult problems of clothing pattern design. Based on the experimental studies of armhole girth, the difference of armhole width and crown height, crown angle, under sleeve curve’s diagonal line length, crown ease and its distribution rule, this paper mainly deals with the sleeve pattern design of tailored - suit for Chinese men. The influences of these factors are discussed and furthermore, some qualitative, quantifiable conclusions are drawn to design perfect pattern of men’ s tailored - suit sleeve.展开更多
<Abstract>The thesis profiles and explains the significant changes that have taken place in China's regional development patterns since the inception of its economic reform and opening three decades ago.The ...<Abstract>The thesis profiles and explains the significant changes that have taken place in China's regional development patterns since the inception of its economic reform and opening three decades ago.The analysis show that prior to the reform China's spatial development pattern was characterized by the dominance of the three municipalities and the Northeast,as well as by both the coast-interior and the north-south disparities.After three decades of reform,regional development has become multi-centered with South China,the Yangtze Delta and the Beijing-Tianjin area being the three most important regions of the country.The coastal provinces as a whole rose to prominence on China's economic map while the Northeast has diminished its clout.The coast-interior gap not only remains but may have widened.And especially in the latest ten years,the economic map continue changing,some provinces rose up quickly,while some declined rapidly.The paper discusses main specific factors that have reshaped China's spatial development patterns.展开更多
Guo Y,Yuan F,Deng H,et al.Paranuclear dot-like immu-nostaining for CD99：a unique staining pattern for diagnosingsolid-pseudopapillary neoplasm of the pancreas.Am J SurgPathol,2011,35（6）：799-806.胰腺实性-假乳头状...Guo Y,Yuan F,Deng H,et al.Paranuclear dot-like immu-nostaining for CD99：a unique staining pattern for diagnosingsolid-pseudopapillary neoplasm of the pancreas.Am J SurgPathol,2011,35（6）：799-806.胰腺实性-假乳头状肿瘤是一种组织发生尚未确定的罕见肿瘤,特征性的表现为假乳头状结构伴囊性和实性生长方式。展开更多
Guo Y,Yuan F,Deng H,et al.Paranuclear dot-like immu-nostaining for CD99：A unique staining pattern for diagnosingsolid-pseudopapillary neoplasm of the pancreas.Am J SurgPathol,2011,35：799-806.胰腺实性-假乳头状肿瘤（...Guo Y,Yuan F,Deng H,et al.Paranuclear dot-like immu-nostaining for CD99：A unique staining pattern for diagnosingsolid-pseudopapillary neoplasm of the pancreas.Am J SurgPathol,2011,35：799-806.胰腺实性-假乳头状肿瘤（SPN）,又名乳头状囊性肿瘤。展开更多
文摘The study profiles and explains the significant changes that have taken place in China's spatial development patterns since the inception of its economic reform and opening two decades ago. Principal component analysis is used to delineate spatial patterns. The analyses show that prior to the reform China's spatial development pattern was characterized by the dominance of the three municipalities and the Northeast, as well as by both the coast-interior and the north-south disparities. Northern provinces were generally more industrialized and economically powerful than the southern ones. After two decades of reform, regional development has become multi-centered with South China, the Yangtze Delta and the Beijing-Tianjin area being the three most important regions of the country. The coastal provinces as a whole rose to prominence on China's economic map while the Northeast has diminished its clout. The coast-interior gap not only remains but may have widened. The north-south disparity also still exists but there has been a role reversal with the south now in the lead position. Virtually all inland provinces now find themselves at or near the low end of the development spectrum. We argue that the major reason for the recent shifts in Chinese space economy is the spatially differentiated economic growth resulted from the reform and open door policy and from the new, uneven development strategy adopted by the Chinese government. The paper discusses four specific factors that have reshaped China's spatial development patterns.
文摘Through reviewing different development phases of transportation and communication facilities as well as their profound influence on the evolution of urban spatial pattern,it was disclosed that the development and improvement of information network communication would bring fundamental transformation of urban basic functions which would take effect through the usage of urban land,and finally lead to the spatial pattern reform of the whole city.
基金funded by China National Science and Technology Support Program(Grant No.2012BAD21B02)
文摘This study aimed to demonstrate change in spatial correlation between Korean pine （Pinus koraiensis Sieb. et Zucc.） and three rare species, and change in spatial distribution of four species in response to a range of selective cutting intensities. We sampled three plots of mixed Korean pine and broad-leaf forest in Lushuihe Forestry Bureau of Jilin province, China. Plot 1, a control, was unlogged Korean pine broad-leaf forest. In plots 2 and 3, Korean pine was selectively cut at 15 and 30 % intensity, respectively, in the 1970s. Other species were rarely cut. We used point-pattern analysis to research the spatial distributions of four tree species and quantify spatial correlations between Korean pine and the other three species, Amur linden （Tilia amurensis Rupr.）, Manchurian ash （Fraxinus mandshurica Rupr.）, and Mongolian oak （Quercus mongolica Fisch.） in all three plots. The results of the study show that selective cutting at 15 % intensity did not significantly change either the species spatial patterns or the spatial correlation between Korean pine and broadleaf species. Selective cutting at 30 % intensity slightly affected the growth of Korean pine and valuable species in forest communities, and the effect was considered nondestructive and recoverable.
基金Supported by National Natural Science Foundation of China(31260552)National High-tech Research and Development Plan(863 plan)(2011AA100607)+1 种基金Selection of Excellent Ecological Forage Grass Varieties and Research and Demonstration of Carbon and Nitrogen Source of Fruit-grass Coupling System(GKH 14125008-2-13)Breeding and Popularization of National Approval New Forage Variety Pennisetum purpureum(GYMK 201453057)
文摘[ Objectivel The paper aimed to investigate the expression pattern of bbu-miR-103-1 in buffalo （Bubalus bubalis） at lactation and non-lactation periods, and to predict its target gene and function. [ Method] Expression pattern of bbu-miR-103-1 at lactation and non-lactation periods were detected by qRT-PCR. The precursor expression plasmid of bbu-miR-103-1 was constructed and named LpEZX-pre-miR-103-1. It was packaged and propagated to produce high-titer lenti- virus in 293T cell lines, which could be used to infect buffalo mammary epithelial cells （BMECs） and over express bbu-miR-103-1. The inhibitor of bbu-miR- 103-1 was chemically synthesized and transfected into BMECs to suppress bbu-miR-103-1 at the same time. The relative expression of pantothenate kinase 3 （ PANK3 ） and milk fat metabolism related genes were detected by qRT-PCR. [ Result] The relative expression of bbu-miR-103-1 at lactation period was 5.29 times higher than that at non-lactation period in buffalo （ P 〈 0.01 ）. The LpEZX-pre-miR-103-1 had been successfully constructed and packaged with the infection titer of 3.47×10^6 PFU/mL. Overexpress or suppress of bbu-miR-103-1 extremely down-regulated or up-regulated the expression level of PANK3 in BMECs （ P 〈 0.01 ）. Over expression of bbu-miR-103~l extremely enhanced the expression of Acetyl-CoA carboxylase alpha（ACACA）, Glycerol-3-phosphate acyhransferase 1 mitochon- drial （GPAM）, Diacylglycerol Oacyhransferase l （DGAT1） and Pyrnvate dehydrogenase lipoamide kinase isozyme 4 （PDK4） （P 〈0.01 ）, and also significantly up-regulated the expression of sterol regulatory element binding protein-1 c （SREBPI c）, Adipose differentiation-related protein （ADFP）, Cluster of differentiation 36 （ CD36）, Acetyl-CoA synthetase short-chain subfamily member 1 （ACSS1） （P 〈0.05）. Over expression of bbu-miR-103-1 down-regulated the expression of PANK3, and improved the mRNA level of SREBPlc by feedback regulation, finally promoting the de novo synthesis of fatty acid beginning with ACACA. [ Conclusion] bbu-miR-103-1 plays an important role in enhancing milk fatty acid synthesis, which provides a molecular base for revealing formation and regulatory mechanism of high-level milk fat in buffalo.
文摘Optimization of antenna array pattern used in a spaceborne Synthetic Aperture Radar (SAR) system is considered in this study. A robust evolutionary algorithm, Non-dominated Sorting Genetic Algorithms (the improved NSGA-Ⅱ), is applied on a spaceborne SAR antenna pattern design. The system consists of two objective functions with two constraints. Pareto fronts are generated as a result of multi-objective optimization. After being validated by a test problem ZDT4, the algorithms are used to synthesize spaceborne SAR antenna radiation pattern. The good results with low Ambi- guity-to-Signal Ratio (ASR) and high directivity are obtained in the paper.
文摘After taking stock of China's four-decade reforms, this paper identifies the cyclical patterns of China's reforms, which consist of an intermediate cycle and three short cycles. The purpose of reform is to adjust the changing relations of production to changing productivity. China has adopted a gradualist approach of reform, and reform cycles have coincided with economic cycles. The cyclical changes of reform are of great significance to comprehensively deepening reforms in the new era: Downward pressures of the economy present the best window period for reform;a new cycle of reform will unveil a new economic cycle as well;the people's support is essential to pushing forward the cyclical movements of reform;and top-down design is essential to deepen reforms on all fronts.
基金Supported by National Key Basic Research and Development Program(973 Program)(2003CB415205)the National Natural Science Foundation of China(50479036)
文摘The changing of flow conditions caused by construction of hydro-projects will result in river's refor-mation and development of channel pattern.In this paper,the development of channel pattem in the process ofreformation is studied by means of flume experiments.Influence of slope,grain size,angle-of-inflow,dis-charge and discharge process are comprehensively analyzed according to the experimental data.It was foundthat the channel would be widened as the river slope or discharge increased and grain size decreased.If theangle-of-inflow was not zero,under certain conditions of grain size and discharge,a most suitable slope exist-ed,for which the river would develop into a pattem of meandering.Different discharge process would imposeon the change of river morphology,even caused transformation of channel patterns.Diversity in the capacity ofshaping rivers of different discharges especially the flood duration cast a light on the change of channel pattern.
基金Supported by Social Science Foundation of Hebei Province(HB10GJ00)Soft Science Foundation of Science and Technology Department of Hebei Province(2011055602)
文摘With the continuous improvement of population and people’s living standard,traditional consumption pattern at the cost of great consumption of resources and energy brought more serious damages to environment and development,and became the core of constant deterioration of environmental problems in present world.Therefore,the reform from current traditional consumption pattern to environment-friendly consumption pattern beneficial to sustainable development has become the important theoretical and practical subject at present.The relationship between environmental problems and consumption problems was analyzed firstly,and then the characteristics and disadvantages of traditional consumption pattern were discussed,finally the necessity and ways of constructing environment-friendly consumption pattern were put forward,so as to provide theoretical foundation for the reform of current traditional consumption pattern.
文摘To meet the development trend of multi-bar warp knit-ting machine towards high-speed,advanced technologyand computer control and the requirements of variousproducts with small quantity,there are many researcheson the computer-aided pattern design of multi-barwarp knitted fabrics.In terms of the special propertiesof the computer-aided pattern design of multi-barwarp knitted fabrics,the Object Oriented Program(OOP)programming-Object Windows class Library(OWL)programming is selected.According to thecharacters of the OWL programming,various functionsare defined.Pattern design and technical parameters canbe output,which offers a great convenience for the fac-tory.
基金This work wus supported hy China Textile Universily and the corporatoin foundation
文摘Sleeve pattern design of men’ s tailored - suit is one of the most difficult problems of clothing pattern design. Based on the experimental studies of armhole girth, the difference of armhole width and crown height, crown angle, under sleeve curve’s diagonal line length, crown ease and its distribution rule, this paper mainly deals with the sleeve pattern design of tailored - suit for Chinese men. The influences of these factors are discussed and furthermore, some qualitative, quantifiable conclusions are drawn to design perfect pattern of men’ s tailored - suit sleeve.
文摘<Abstract>The thesis profiles and explains the significant changes that have taken place in China's regional development patterns since the inception of its economic reform and opening three decades ago.The analysis show that prior to the reform China's spatial development pattern was characterized by the dominance of the three municipalities and the Northeast,as well as by both the coast-interior and the north-south disparities.After three decades of reform,regional development has become multi-centered with South China,the Yangtze Delta and the Beijing-Tianjin area being the three most important regions of the country.The coastal provinces as a whole rose to prominence on China's economic map while the Northeast has diminished its clout.The coast-interior gap not only remains but may have widened.And especially in the latest ten years,the economic map continue changing,some provinces rose up quickly,while some declined rapidly.The paper discusses main specific factors that have reshaped China's spatial development patterns.
文摘Guo Y,Yuan F,Deng H,et al.Paranuclear dot-like immu-nostaining for CD99：a unique staining pattern for diagnosingsolid-pseudopapillary neoplasm of the pancreas.Am J SurgPathol,2011,35（6）：799-806.胰腺实性-假乳头状肿瘤是一种组织发生尚未确定的罕见肿瘤,特征性的表现为假乳头状结构伴囊性和实性生长方式。
文摘Guo Y,Yuan F,Deng H,et al.Paranuclear dot-like immu-nostaining for CD99：A unique staining pattern for diagnosingsolid-pseudopapillary neoplasm of the pancreas.Am J SurgPathol,2011,35：799-806.胰腺实性-假乳头状肿瘤（SPN）,又名乳头状囊性肿瘤。
