According to the Statistical Communiqué of the People's Republic of China on the 2008 National Economic and Social Development,released by the National Bureau of Statistics of China on Feb.26,in 2008,the nati...According to the Statistical Communiqué of the People's Republic of China on the 2008 National Economic and Social Development,released by the National Bureau of Statistics of China on Feb.26,in 2008,the national economy kept fast growth and all social undertakings achieved new progress.展开更多
Since the beginning of 2012,the international political and economic environment becomes more complex and volatile,so China’s economic development faces increasing difficulties.China’s economic growth has slowed dow...Since the beginning of 2012,the international political and economic environment becomes more complex and volatile,so China’s economic development faces increasing difficulties.China’s economic growth has slowed down,with GDP growth rate of 8.1%,7.6%,and 7.4%for the first,second and third quarter respectively.What China’s current economic situation is and how the future development trend will be展开更多
CPC Central Committee and State Council: Promoting High-Quality Urban Development China's urbanization is transitioning from a phase of rapid growth to one of stable development, with urban development is shifting...CPC Central Committee and State Council: Promoting High-Quality Urban Development China's urbanization is transitioning from a phase of rapid growth to one of stable development, with urban development is shifting from large-scale incremental expansion to a stage mainly focused on enhancing the quality and efficiency of existing urban stock. To accelerate the transformation of urban development modes and promote high-quality urban development, the CPC Central Committee and the State Council issued the Opinions on Promoting High-Quality Urban Development on Aug. 15, 2025(hereinafter referred to as the Opinions).展开更多
This article conducts an in-depth exploration of the current situation,causes and potential impactson the economic system of financial and economic risks,and puts forward corresponding preventive measures.Through the ...This article conducts an in-depth exploration of the current situation,causes and potential impactson the economic system of financial and economic risks,and puts forward corresponding preventive measures.Through the analysis of the current financial market,it is found that financial and economic risks mainly comefrom aspects such as market fluctuations,credit defaults,policy uncertainties,and poor internal managementof financial institutions.The article points out that these risks will not only weaken the profitability of financialinstitutions,but also may trigger systemic financial risks,thereby causing an impact on the entire economicsystem.To effectively prevent financial and economic risks,this article suggests starting from multiple aspectssuch as strengthening financial supervision,improving the risk early warning mechanism,optimizing the internalgovernance structure of financial institutions,and promoting financial innovation.Meanwhile,emphasisis placed on the coordination and cooperation of macro policies to enhance the stability and risk-resistancecapacity of the financial system.The research aims to provide theoretical support and practical guidance forfinancial institutions and regulatory authorities,promote the healthy and stable development of the financialmarket,and ensure the sustainable growth of the economy.展开更多
Developing a stable insulation material stands as a crucial challenge for high-voltage direct current(HVDC)cable insulation.This work proposes an alloying strategy to significantly enhance the breakdown strength and h...Developing a stable insulation material stands as a crucial challenge for high-voltage direct current(HVDC)cable insulation.This work proposes an alloying strategy to significantly enhance the breakdown strength and high-temperature resistivity of cross-linked polyethylene(XLPE).The strategy involves blending low-density polyethylene(LDPE)with polystyrene(PS),resulting in a polymeric alloy.Confirmation of PS alloying within XLPE is supported by observed shifts in polyethylene miller indices(110)and(200)planes.The dicumyl peroxide used as a crosslinking agent demonstrates an ideal 1.41% enhancement in LDPE-PS crosslinking.The integration of aromatic ethers in the cross-linked network enhances temperature stability.Alloying PS at 220℃ in XLPE leads to improved inter-molecular interactions and increased interfacial area,creating a sea-island morphology that resolves voids and limits defect or crack propagation by form-ing additional trapping sites.The enhanced breakdown strength and reduced conductivity of XLPE-PS are attributed to increased deep trapping sites and reduced carrier mobility resulting from alloying.The reduced conductivity at 70℃ and 90℃ demonstrates stability under electric fields.Remarkable breakdown strength improvements of 27.5%and 23.6% are observed at 30℃ and 50℃.The proposed alloying strategy suggests replacing XLPE with advanced XLPE-PS,offering promising prospects for HVDC insulation.展开更多
A decade ago mainstream molecular biologists regarded it impossible or biologically ill-motivated to understand the dynamics of complex biological phenomena, such as cancer genesis and progression, from a network pers...A decade ago mainstream molecular biologists regarded it impossible or biologically ill-motivated to understand the dynamics of complex biological phenomena, such as cancer genesis and progression, from a network perspective. Indeed, there are numerical difficulties even for those who were determined to explore along this direction. Undeterred, seven years ago a group of Chinese scientists started a program aiming to obtain quantitative connections between tumors and network dynamics. Many interesting results have been obtained. In this paper we wish to test such idea from a different angle: the connection between a normal biological process and the network dynamics. We have taken early myelopoiesis as our biological model. A standard roadmap for the cell-fate diversification during hematopoiesis has already been well established experimentally, yet little was known for its underpinning dynamical mechanisms. Compounding this difficulty there were additional experimental challenges, such as the seemingly conflicting hematopoietic roadmaps and the cell-fate inter-conversion events. With early myeloid cell-fate determination in mind, we constructed a core molecular endogenous network from well-documented gene regulation and signal transduction knowledge. Turning the network into a set of dynamical equations, we found computationally several structurally robust states. Those states nicely correspond to known cell phenotypes. We also found the states connecting those stable states.They reveal the developmental routes—how one stable state would most likely turn into another stable state. Such interconnected network among stable states enabled a natural organization of cell-fates into a multi-stable state landscape. Accordingly, both the myeloid cell phenotypes and the standard roadmap were explained mechanistically in a straightforward manner. Furthermore,recent challenging observations were also explained naturally. Moreover, the landscape visually enables a prediction of a pool of additional cell states and developmental routes, including the non-sequential and cross-branch transitions, which are testable by future experiments. In summary, the endogenous network dynamics provide an integrated quantitative framework to understand the heterogeneity and lineage commitment in myeloid progenitors.展开更多
文摘According to the Statistical Communiqué of the People's Republic of China on the 2008 National Economic and Social Development,released by the National Bureau of Statistics of China on Feb.26,in 2008,the national economy kept fast growth and all social undertakings achieved new progress.
文摘Since the beginning of 2012,the international political and economic environment becomes more complex and volatile,so China’s economic development faces increasing difficulties.China’s economic growth has slowed down,with GDP growth rate of 8.1%,7.6%,and 7.4%for the first,second and third quarter respectively.What China’s current economic situation is and how the future development trend will be
文摘CPC Central Committee and State Council: Promoting High-Quality Urban Development China's urbanization is transitioning from a phase of rapid growth to one of stable development, with urban development is shifting from large-scale incremental expansion to a stage mainly focused on enhancing the quality and efficiency of existing urban stock. To accelerate the transformation of urban development modes and promote high-quality urban development, the CPC Central Committee and the State Council issued the Opinions on Promoting High-Quality Urban Development on Aug. 15, 2025(hereinafter referred to as the Opinions).
文摘This article conducts an in-depth exploration of the current situation,causes and potential impactson the economic system of financial and economic risks,and puts forward corresponding preventive measures.Through the analysis of the current financial market,it is found that financial and economic risks mainly comefrom aspects such as market fluctuations,credit defaults,policy uncertainties,and poor internal managementof financial institutions.The article points out that these risks will not only weaken the profitability of financialinstitutions,but also may trigger systemic financial risks,thereby causing an impact on the entire economicsystem.To effectively prevent financial and economic risks,this article suggests starting from multiple aspectssuch as strengthening financial supervision,improving the risk early warning mechanism,optimizing the internalgovernance structure of financial institutions,and promoting financial innovation.Meanwhile,emphasisis placed on the coordination and cooperation of macro policies to enhance the stability and risk-resistancecapacity of the financial system.The research aims to provide theoretical support and practical guidance forfinancial institutions and regulatory authorities,promote the healthy and stable development of the financialmarket,and ensure the sustainable growth of the economy.
基金State Grid Corporation of China,Grant/Award Number:5500-202258104A-1-1-ZN。
文摘Developing a stable insulation material stands as a crucial challenge for high-voltage direct current(HVDC)cable insulation.This work proposes an alloying strategy to significantly enhance the breakdown strength and high-temperature resistivity of cross-linked polyethylene(XLPE).The strategy involves blending low-density polyethylene(LDPE)with polystyrene(PS),resulting in a polymeric alloy.Confirmation of PS alloying within XLPE is supported by observed shifts in polyethylene miller indices(110)and(200)planes.The dicumyl peroxide used as a crosslinking agent demonstrates an ideal 1.41% enhancement in LDPE-PS crosslinking.The integration of aromatic ethers in the cross-linked network enhances temperature stability.Alloying PS at 220℃ in XLPE leads to improved inter-molecular interactions and increased interfacial area,creating a sea-island morphology that resolves voids and limits defect or crack propagation by form-ing additional trapping sites.The enhanced breakdown strength and reduced conductivity of XLPE-PS are attributed to increased deep trapping sites and reduced carrier mobility resulting from alloying.The reduced conductivity at 70℃ and 90℃ demonstrates stability under electric fields.Remarkable breakdown strength improvements of 27.5%and 23.6% are observed at 30℃ and 50℃.The proposed alloying strategy suggests replacing XLPE with advanced XLPE-PS,offering promising prospects for HVDC insulation.
基金supported by the National Basic Research Program of China(2010CB529200)National Natural Science Foundation of China(91029738)
文摘A decade ago mainstream molecular biologists regarded it impossible or biologically ill-motivated to understand the dynamics of complex biological phenomena, such as cancer genesis and progression, from a network perspective. Indeed, there are numerical difficulties even for those who were determined to explore along this direction. Undeterred, seven years ago a group of Chinese scientists started a program aiming to obtain quantitative connections between tumors and network dynamics. Many interesting results have been obtained. In this paper we wish to test such idea from a different angle: the connection between a normal biological process and the network dynamics. We have taken early myelopoiesis as our biological model. A standard roadmap for the cell-fate diversification during hematopoiesis has already been well established experimentally, yet little was known for its underpinning dynamical mechanisms. Compounding this difficulty there were additional experimental challenges, such as the seemingly conflicting hematopoietic roadmaps and the cell-fate inter-conversion events. With early myeloid cell-fate determination in mind, we constructed a core molecular endogenous network from well-documented gene regulation and signal transduction knowledge. Turning the network into a set of dynamical equations, we found computationally several structurally robust states. Those states nicely correspond to known cell phenotypes. We also found the states connecting those stable states.They reveal the developmental routes—how one stable state would most likely turn into another stable state. Such interconnected network among stable states enabled a natural organization of cell-fates into a multi-stable state landscape. Accordingly, both the myeloid cell phenotypes and the standard roadmap were explained mechanistically in a straightforward manner. Furthermore,recent challenging observations were also explained naturally. Moreover, the landscape visually enables a prediction of a pool of additional cell states and developmental routes, including the non-sequential and cross-branch transitions, which are testable by future experiments. In summary, the endogenous network dynamics provide an integrated quantitative framework to understand the heterogeneity and lineage commitment in myeloid progenitors.
