Static corrections using the conventional method are basically conducted in two steps, the weathering correction followed by the correction from the top of the sub-weathering to the unified datum. However, the convent...Static corrections using the conventional method are basically conducted in two steps, the weathering correction followed by the correction from the top of the sub-weathering to the unified datum. However, the conventional method fails to well deal with statics problems in case the top of the sub-weathering is sharply undulated and the lateral velocity of the sub-weathering varies significantly. This brings us to the introduction of a smooth intermediate reference datum (IRD) located under the top of the sub-weathering, which helps to further increase the accuracy of statics based on the weathering corrections, and ensures the imaging quality. Good results based on the IRD technique have been achieved in the complex areas in western China. This paper discusses the IRD functions, its application requirements, and selection of related parameters. Some typical sections for comparison are also given in this paper.展开更多
Hybrid wheat is recognized as a preferred approach to improve wheat yield,and it will be a competition focus in high-tech seed industry in the future. We have made a breakthrough for the first time in creation of two-...Hybrid wheat is recognized as a preferred approach to improve wheat yield,and it will be a competition focus in high-tech seed industry in the future. We have made a breakthrough for the first time in creation of two-line hybrid wheat system,which reaches the world leading level in wheat research and has laid an important foundation for the future direction of the world wheat research. Similar to hybrid rice,the innovation of two-line hybrid wheat system is another achievement in science and technology. The application of hybrid wheat in China will greatly increase the food production,and make a great significance to food production and food security. This paper introduces the development process and major breakthrough of hybrid wheat in China,and the main bottleneck and countermeasures in the application of hybrid wheat.展开更多
Based on a refined "non-competitive input-output model," this paper proposes a new framework for analyzing the status of a country's high-tech industries in the international division of labor, i.e. calculates the ...Based on a refined "non-competitive input-output model," this paper proposes a new framework for analyzing the status of a country's high-tech industries in the international division of labor, i.e. calculates the index of" weighted value-added productivity " by compiling non-competitive input-output tables which distinguish high-tech industries from traditional industries. The new method effectively avoids "statistical illusion" which stems from a biased focus on gross exports under intra-product specialization. The empirical study shows that since 1995, the status of China's high-tech industries has grown quickly as a result of enhanced labor productivity, but still lags behind those of major developed countries. In addition, the study also suggests that the status of China's high-tech industries has been over-estimated using the traditional gross export statistical method.展开更多
National high-tech industrial development zones represent a major strategy of the Chinese government in developing high-tech industries and spurring regional economic growth. The effect of this policy is yet to be pro...National high-tech industrial development zones represent a major strategy of the Chinese government in developing high-tech industries and spurring regional economic growth. The effect of this policy is yet to be proven. Based on the panel data of 283 Chinese cities between 1984 and 2012, this paper investigates the effect of high-tech zones on regional economic development. Empirical results suggest that first, national hightech zones have remarkably enhanced regional GDP and per capita GDP growth, and this conclusion still holds true after multiple rounds of robustness test; second, the economic effect of national high-tech zones is subject to diminishing marginal return and compared with higher-tier cities, lower-tier cities benefited more from the creation of national hightech zones. This paper concludes that national high-tech zones where special policies are experimented and offered not only drive economic development but, if properly distributed across regions, may help reduce regional economic disparities as well. The results of this study provide important implications for the future distribution of national high-tech zones and the creation of other relevant policies.展开更多
A successful and effective strategic alliance involves many factors, of which selecting a proper partner is the most important factor to achieve the success of the alliance. In view of the characteristics of strategic...A successful and effective strategic alliance involves many factors, of which selecting a proper partner is the most important factor to achieve the success of the alliance. In view of the characteristics of strategic alliance in high and new technology enterprises and according to the analysis on the standards of partner selecting and the factors of the success of alliance, this paper does some deeper research on the partner selecting and the alliance evaluation process from the perspective of different strategic levels by using a fuzzy comprehensive evaluating method, thus providing a method to select the alliance partner for high and new technology enterprises in China.展开更多
The effect of specific human capital on governance was analyzed,and a governance frame was proposed based on specific human capital for high-tech enterprises.The frame takes residual rights of claimant and residual ri...The effect of specific human capital on governance was analyzed,and a governance frame was proposed based on specific human capital for high-tech enterprises.The frame takes residual rights of claimant and residual rights of control as core,including the factors of institutional environment and bargaining power.One of the important contexts of Chinese enterprises governance is ownership structure,which means that local government plays an important role in the governance.Meanwhile,the level of market development in China is low,which has an effect on corporate governance.The model of capital gains and status of human capital is explored,and it shows that all of the residual claims belonging to shareholder is only an exceptional case,and the internal factors influencing the residual claim allocation proportion of stakeholders are the scarcity in the capital market and risks born by them.Furthermore,two cases are discussed in detail to study the governance in Chinese high-tech enterprises.展开更多
[Objective] The paper was focused on the way how to increase the yield of hybrid rice Zhongzheyou No.8. [Method] The relationship among yield-related traits and their contribution to yield were investigated through co...[Objective] The paper was focused on the way how to increase the yield of hybrid rice Zhongzheyou No.8. [Method] The relationship among yield-related traits and their contribution to yield were investigated through correlation analysis, regression analysis and path analysis. [Result] The performance of ear, grain and weight in Zhongzheyou No.8 showed significant difference among yield levels. The enhancement of effective ears would restrain the number of total grains per ear. It was found that the direct contributions of main economic traits to yield were: number of fil ed grains per ear 〉 number of effective ears 〉1 000-grain weight 〉number of total grains per ear. [Conclusion] The promotion of high-yielding techniques was suggested as fol ows: on the basis of certain number of effective ears, number of fil ed grains per ear should be mainly focused with a consideration to grain weight.展开更多
The "OLI paradigm" of Dunning (1977) claims that firm internationalization is addressed toward the exploitation of home-based specific advantages. However, evidence shows that SMEs are increasingly internationaliz...The "OLI paradigm" of Dunning (1977) claims that firm internationalization is addressed toward the exploitation of home-based specific advantages. However, evidence shows that SMEs are increasingly internationalizing their activities in order to enrich their resource pool. In this regard, a reinterpretation of the OLI paradigm came out with a new perspective suggesting that "foreign direct investmenf' (FDI) is increasingly oriented toward asset augmentation. Correspondingly, the purpose of this theoretical paper is to suggest a set of principles that could inform on how global small and medium-sized enterprises grow in the international marketplace when investing abroad.展开更多
Building on the success of the company’s unique Evolon?product,Freudenberg Performance Materials has now pushed the limits even further by developing Evolon?New Generation.This high-tech textile is made from super-...Building on the success of the company’s unique Evolon?product,Freudenberg Performance Materials has now pushed the limits even further by developing Evolon?New Generation.This high-tech textile is made from super-microfilaments that are half the thickness and twice the density of those used in the original Evolon?.Evolon?展开更多
This paper focuses on potential development models of future oil and gas exploration in South China Sea. A detailed study of current development models worldwide is performed through some examples of industry installe...This paper focuses on potential development models of future oil and gas exploration in South China Sea. A detailed study of current development models worldwide is performed through some examples of industry installed/ongoing projects and major technical issues encountered during these practice. Key technologies are discussed for the success of field development. Some of the technologies and field development experience can be used for South China Sea project. Several models are studied in field development for different scenarios,including marginal field,large oil field and gas field. With the massive investment activities,continued improved technologies,and rapidly growing pool of professionals,the offshore industry in China will soon encounter a golden period.展开更多
Wetland databases can provide the basic data that necessary for the protection and management of wetlands. A large number of wetland databases have been established in the world as well as in China. In this paper, we ...Wetland databases can provide the basic data that necessary for the protection and management of wetlands. A large number of wetland databases have been established in the world as well as in China. In this paper, we review China's wetland databases based on remote sensing(RS) technology after introducing the background theory to the application of RS technology in wetland surveys. A key conclusion is that China's wetland databases are far from sufficient in fulfilling protection and management needs. Our recommendations focus on the use of the hyper-spectral imagery, microwave data, multi-temporal images, and automatic classifications in order to improve the accuracy and efficiency of wetland inventory. Further, attention should also be paid to detect major biophysical features of wetlands and build wetland databases in years after the 1980 s in China. Considering that great gap exists between RS experts and wetland experts, further cooperation between wetland scientists and RS scientists are needed to promote the application of RS in the foundation of wetland databases.展开更多
The revolution in information and communication technology has brought huge technical benefits and wealth, but has created a major global problem: the generation of vast amounts of electronic waste, or e-waste throug...The revolution in information and communication technology has brought huge technical benefits and wealth, but has created a major global problem: the generation of vast amounts of electronic waste, or e-waste through product obsolesce. The challenge in managing e-waste will be in developing sustainable recycling tech- nologies that are able to address the volume and complexity of this waste using cost effective and ecologically sen-sitive methods. In this study, the capability or microorganism metabolic acids in dissolving the metallic tractions from waste printed circuit boards was examined. Several factors were considered in the examination of the activityof the acids-including secondary reactions, solution pH, temperature and the nature of ligands in solutions (or bioacid constituents). The leaching tests were cgnducted ex-situ, using synthetic organic acids. Leaching was performed for periods of up to 6 hat 70-90 ℃ and 1000 r-min-1.展开更多
This paper creates a new analytical framework for analyzing the international trade structure, estimates the changes in China's import structure, and conducts a comparative analysis with 18 countries. This paper's f...This paper creates a new analytical framework for analyzing the international trade structure, estimates the changes in China's import structure, and conducts a comparative analysis with 18 countries. This paper's findings are as follows: (1) Between 2000 and 2014, China's import structure underwent fundamental changes, with a significant rise in the share of non-agricultural primary commodities and high-tech products in China's total imports. The overall technology level in China's imports decreased at first before keeping on the rise since 2007. (2) High-tech products always represent the highest share of around 20% in the world import market. However, the share of high-tech products in China's imports did not meet the worm average level until 2012. (3) Developing countries account for less than 25% of China's imports except for agricultural primary commodities. Developed countries have always accounted for more than 50% of China's total imports of medium-high-tech, high-tech and ultra-high-tech products.展开更多
This paper mainly studied the Financing Strategies of SMEs. It firstly collected literal reviews, and analyzed preliminarily the selection of the financing sample variables and data variables. Secondly, combined with ...This paper mainly studied the Financing Strategies of SMEs. It firstly collected literal reviews, and analyzed preliminarily the selection of the financing sample variables and data variables. Secondly, combined with Eviews5.0 software, it built a High-tech SMEs' financing model and deeply dug the factors affecting the financing of High-tech SMEs. Finally, combined with practical experience, this paper explored the measurements of financing taken by SMEs, and analyzed new financing channels. This paper made some contribution to the development of the High-tech SMEs' financing.展开更多
This paper uses the latest data to analyze the historical patterns and the current situation of the technology structure of China' commodities imports, the structure of China's commodities imports from 19 countries ...This paper uses the latest data to analyze the historical patterns and the current situation of the technology structure of China' commodities imports, the structure of China's commodities imports from 19 countries and regions, and China's interdependent relationship with its trade partners on the basis of studying 230 kinds of manufactured products categorized by their technological intensity. The results show that during the period of 1995-2011, the share of low technology (low-tech) products and medium technology (medium-tech) products declined," the share of primary products, resource- based products, and high technology (high-tech) products increased; high-tech products had taken the largest share, bypassing low-tech and medium-tech products, as early as 2000; different types of countries exported different kinds of commodities to China and had different positions in China's imports; China had relatively high interdependent relations with Japan, South Korea and China's Taiwan; China had relatively low interdependent relations with the United States, Germany, France and the Netherlands; China's import dependence on major developing countries and emerging developing countries was less than these countries' export dependence on China; China was the leading export destination for major developing countries and emerging developing countries. Generally speaking, the development of China's import trade is inclusive, and China shares its growth with other countries. It not only promotes developing countries'exports but also enhances developed countries' exports.展开更多
Every developing country has to meet the challenge of overcoming a condition of subalterrnity. After the victory of the Revolution in 1959, Cuba tackled this challenge in a very original way, prioritizing the developm...Every developing country has to meet the challenge of overcoming a condition of subalterrnity. After the victory of the Revolution in 1959, Cuba tackled this challenge in a very original way, prioritizing the development of scientific and technical know-how and of an advanced scientific system. Moreover, it pursued this goal with an extremely open attitude, using characteristic Cuban resourcefulness while at the same time taking advantage of every possible support and collaboration. While the country was increasingly integrated into the Soviet system and the Council for Mutual Economic Assistance (COMECON), and therefore benefited from a close collaboration with the Soviet Union and the Eastern European countries' higher education and scientific systems, nevertheless it constantly sought collaboration with scientists and institutions in other countries as well, in particular in the Western world. The most meaningful instance of this collaboration is the development since the 1980s of an advanced biotechnological and biomedical system, which was created independently by the Soviet Union. Quite remarkably, when the socialist system collapsed, though Cuba faced a critical situation, the strategic choice was made not to cut support to this scientific sector, but rather to reinforce it. At present Cuba produces and exports advanced and in some cases unique vaccines and drugs, and this sector ranks as third in the country's source of current hard currency.展开更多
A reaction coupling system of transesterification and methoxycarbonylation with methyl phenyl carbonate (MPC) as intermediate was established to efficiently prepare 1,6-hexamethylene diurethane (HDU) from 1,6- bex...A reaction coupling system of transesterification and methoxycarbonylation with methyl phenyl carbonate (MPC) as intermediate was established to efficiently prepare 1,6-hexamethylene diurethane (HDU) from 1,6- bexametbylene diamine (HDA). The feasibility of the system was explored using the thermodynamics analysis, the reaction mechanism and the experiment results. The optimal reaction was carried out to get higher HDU yield. The thermodynamic analysis showed that the metboxycarbonylation of HDA with MPC, the Gibbs free energy of which was negative, was a spontaneous process. Furthermore, the equilibrium constant of the methoxycarbonylation of HDA with MPC was much greater than that of the transesterification of dimethyl carbonate (DMC) with phenol, so the reaction coupling could be realized under mild conditions. The reaction mechanism analysis indicated that phenoxy anion was the key spedes for reaction coupling. Higher MPC concentration was detected when sodium phenoxide was used as transesterification reactant with DMC, since the phenoxy anion of sodium phenoxide could be dissociated more easily. Sodium pbenoxide was more suitable to prepare HHDU through reaction coupling. A yield of HDU as high as 98.3% could be reached under the optimal conditions of mPhONa/mDMC = 0.027 and nDMC/nHDa = 8/1 at 90 ℃ in 2 h.展开更多
To evaluate the relative effectiveness of the input and output of the high-tech industry in China's 31 provinces (including municipalities and autonomous regions), DEA evaluation model was constructed using data en...To evaluate the relative effectiveness of the input and output of the high-tech industry in China's 31 provinces (including municipalities and autonomous regions), DEA evaluation model was constructed using data envelopment analysis (DEA), and DEA evaluation model was solved using Deap2.1 software, for the purpose of obtaining the DEA efficiency and the non-DEA efficiency in all the provinces (including municipalities and autonomous regions). Then, the comprehensive efficiency, technical efficiency, scale efficiency, scale return, and projection analysis were analyzed. Finally, the provinces of the non-DEA efficiency are sorted according to three efficiencies, and also a goal of improvement is proposed for the purpose of expanding technology investment in the provinces of the DEA efficiency.展开更多
文摘Static corrections using the conventional method are basically conducted in two steps, the weathering correction followed by the correction from the top of the sub-weathering to the unified datum. However, the conventional method fails to well deal with statics problems in case the top of the sub-weathering is sharply undulated and the lateral velocity of the sub-weathering varies significantly. This brings us to the introduction of a smooth intermediate reference datum (IRD) located under the top of the sub-weathering, which helps to further increase the accuracy of statics based on the weathering corrections, and ensures the imaging quality. Good results based on the IRD technique have been achieved in the complex areas in western China. This paper discusses the IRD functions, its application requirements, and selection of related parameters. Some typical sections for comparison are also given in this paper.
文摘Hybrid wheat is recognized as a preferred approach to improve wheat yield,and it will be a competition focus in high-tech seed industry in the future. We have made a breakthrough for the first time in creation of two-line hybrid wheat system,which reaches the world leading level in wheat research and has laid an important foundation for the future direction of the world wheat research. Similar to hybrid rice,the innovation of two-line hybrid wheat system is another achievement in science and technology. The application of hybrid wheat in China will greatly increase the food production,and make a great significance to food production and food security. This paper introduces the development process and major breakthrough of hybrid wheat in China,and the main bottleneck and countermeasures in the application of hybrid wheat.
文摘Based on a refined "non-competitive input-output model," this paper proposes a new framework for analyzing the status of a country's high-tech industries in the international division of labor, i.e. calculates the index of" weighted value-added productivity " by compiling non-competitive input-output tables which distinguish high-tech industries from traditional industries. The new method effectively avoids "statistical illusion" which stems from a biased focus on gross exports under intra-product specialization. The empirical study shows that since 1995, the status of China's high-tech industries has grown quickly as a result of enhanced labor productivity, but still lags behind those of major developed countries. In addition, the study also suggests that the status of China's high-tech industries has been over-estimated using the traditional gross export statistical method.
基金sponsored by the National Natural Science Foundation Program(Approval No.71303185)the Social Sciences Planning Foundation Program of the Ministry of Education(Approval No.13XJA790003)+2 种基金the Social Sciences Foundation Program of Shaanxi Province(Approval No.12D124)the Program of Shaanxi Provincial Department of Education(Approval No.12JK0152)the Support Program for Outstanding Young Teachers of Northwest University(Approval No.PR12152)
文摘National high-tech industrial development zones represent a major strategy of the Chinese government in developing high-tech industries and spurring regional economic growth. The effect of this policy is yet to be proven. Based on the panel data of 283 Chinese cities between 1984 and 2012, this paper investigates the effect of high-tech zones on regional economic development. Empirical results suggest that first, national hightech zones have remarkably enhanced regional GDP and per capita GDP growth, and this conclusion still holds true after multiple rounds of robustness test; second, the economic effect of national high-tech zones is subject to diminishing marginal return and compared with higher-tier cities, lower-tier cities benefited more from the creation of national hightech zones. This paper concludes that national high-tech zones where special policies are experimented and offered not only drive economic development but, if properly distributed across regions, may help reduce regional economic disparities as well. The results of this study provide important implications for the future distribution of national high-tech zones and the creation of other relevant policies.
文摘A successful and effective strategic alliance involves many factors, of which selecting a proper partner is the most important factor to achieve the success of the alliance. In view of the characteristics of strategic alliance in high and new technology enterprises and according to the analysis on the standards of partner selecting and the factors of the success of alliance, this paper does some deeper research on the partner selecting and the alliance evaluation process from the perspective of different strategic levels by using a fuzzy comprehensive evaluating method, thus providing a method to select the alliance partner for high and new technology enterprises in China.
基金Project of Humanities and Social Sciences Study of Ministry of Education of China(No.11YJC630222)Promotive Research Fund for Young and Middle-Aged Scientists of Shandong Province,China(No.BS2010SF007)Foundation of Ludong University,China(No.LY20085902)
文摘The effect of specific human capital on governance was analyzed,and a governance frame was proposed based on specific human capital for high-tech enterprises.The frame takes residual rights of claimant and residual rights of control as core,including the factors of institutional environment and bargaining power.One of the important contexts of Chinese enterprises governance is ownership structure,which means that local government plays an important role in the governance.Meanwhile,the level of market development in China is low,which has an effect on corporate governance.The model of capital gains and status of human capital is explored,and it shows that all of the residual claims belonging to shareholder is only an exceptional case,and the internal factors influencing the residual claim allocation proportion of stakeholders are the scarcity in the capital market and risks born by them.Furthermore,two cases are discussed in detail to study the governance in Chinese high-tech enterprises.
基金Supported by Science and Technology Project of Taizhou City(121KY15)~~
文摘[Objective] The paper was focused on the way how to increase the yield of hybrid rice Zhongzheyou No.8. [Method] The relationship among yield-related traits and their contribution to yield were investigated through correlation analysis, regression analysis and path analysis. [Result] The performance of ear, grain and weight in Zhongzheyou No.8 showed significant difference among yield levels. The enhancement of effective ears would restrain the number of total grains per ear. It was found that the direct contributions of main economic traits to yield were: number of fil ed grains per ear 〉 number of effective ears 〉1 000-grain weight 〉number of total grains per ear. [Conclusion] The promotion of high-yielding techniques was suggested as fol ows: on the basis of certain number of effective ears, number of fil ed grains per ear should be mainly focused with a consideration to grain weight.
文摘The "OLI paradigm" of Dunning (1977) claims that firm internationalization is addressed toward the exploitation of home-based specific advantages. However, evidence shows that SMEs are increasingly internationalizing their activities in order to enrich their resource pool. In this regard, a reinterpretation of the OLI paradigm came out with a new perspective suggesting that "foreign direct investmenf' (FDI) is increasingly oriented toward asset augmentation. Correspondingly, the purpose of this theoretical paper is to suggest a set of principles that could inform on how global small and medium-sized enterprises grow in the international marketplace when investing abroad.
文摘Building on the success of the company’s unique Evolon?product,Freudenberg Performance Materials has now pushed the limits even further by developing Evolon?New Generation.This high-tech textile is made from super-microfilaments that are half the thickness and twice the density of those used in the original Evolon?.Evolon?
文摘This paper focuses on potential development models of future oil and gas exploration in South China Sea. A detailed study of current development models worldwide is performed through some examples of industry installed/ongoing projects and major technical issues encountered during these practice. Key technologies are discussed for the success of field development. Some of the technologies and field development experience can be used for South China Sea project. Several models are studied in field development for different scenarios,including marginal field,large oil field and gas field. With the massive investment activities,continued improved technologies,and rapidly growing pool of professionals,the offshore industry in China will soon encounter a golden period.
基金Under the auspices of National Basic Research Program of China(No.2010CB95090103)Technological Basic Research Program of China(No.2013FY111800)
文摘Wetland databases can provide the basic data that necessary for the protection and management of wetlands. A large number of wetland databases have been established in the world as well as in China. In this paper, we review China's wetland databases based on remote sensing(RS) technology after introducing the background theory to the application of RS technology in wetland surveys. A key conclusion is that China's wetland databases are far from sufficient in fulfilling protection and management needs. Our recommendations focus on the use of the hyper-spectral imagery, microwave data, multi-temporal images, and automatic classifications in order to improve the accuracy and efficiency of wetland inventory. Further, attention should also be paid to detect major biophysical features of wetlands and build wetland databases in years after the 1980 s in China. Considering that great gap exists between RS experts and wetland experts, further cooperation between wetland scientists and RS scientists are needed to promote the application of RS in the foundation of wetland databases.
基金Supported by Australian Research Council's Discovery Projects fundings scheme(DP1096342)
文摘The revolution in information and communication technology has brought huge technical benefits and wealth, but has created a major global problem: the generation of vast amounts of electronic waste, or e-waste through product obsolesce. The challenge in managing e-waste will be in developing sustainable recycling tech- nologies that are able to address the volume and complexity of this waste using cost effective and ecologically sen-sitive methods. In this study, the capability or microorganism metabolic acids in dissolving the metallic tractions from waste printed circuit boards was examined. Several factors were considered in the examination of the activityof the acids-including secondary reactions, solution pH, temperature and the nature of ligands in solutions (or bioacid constituents). The leaching tests were cgnducted ex-situ, using synthetic organic acids. Leaching was performed for periods of up to 6 hat 70-90 ℃ and 1000 r-min-1.
基金the National Natural Sciences Foundation Program(Grant No.71473020)Social Sciences Foundation Program of the Ministry of Education(Grant No.14YJA790058)+2 种基金Major Program of Beijing Social Sciences Foundation(15JGA005)Beijing Elite Youth Program of Institutes of Higher Learning in Beijing(Grant No.YETP0281)sponsored program of the Basic Scientific Research Fund(Grant No.SKZZY2014019)of central universities
文摘This paper creates a new analytical framework for analyzing the international trade structure, estimates the changes in China's import structure, and conducts a comparative analysis with 18 countries. This paper's findings are as follows: (1) Between 2000 and 2014, China's import structure underwent fundamental changes, with a significant rise in the share of non-agricultural primary commodities and high-tech products in China's total imports. The overall technology level in China's imports decreased at first before keeping on the rise since 2007. (2) High-tech products always represent the highest share of around 20% in the world import market. However, the share of high-tech products in China's imports did not meet the worm average level until 2012. (3) Developing countries account for less than 25% of China's imports except for agricultural primary commodities. Developed countries have always accounted for more than 50% of China's total imports of medium-high-tech, high-tech and ultra-high-tech products.
文摘This paper mainly studied the Financing Strategies of SMEs. It firstly collected literal reviews, and analyzed preliminarily the selection of the financing sample variables and data variables. Secondly, combined with Eviews5.0 software, it built a High-tech SMEs' financing model and deeply dug the factors affecting the financing of High-tech SMEs. Finally, combined with practical experience, this paper explored the measurements of financing taken by SMEs, and analyzed new financing channels. This paper made some contribution to the development of the High-tech SMEs' financing.
基金supported by “National Natural Science Foundation of China”(Approval No.71473020)“Social Science Foundation of Education Ministry of China”(Approval No.14YJA790058)+1 种基金“The Fundamental Research Funds for the Central University”(Approval No.SKZZY2014019)“Beijing Higher Education Young Elite Teacher Project”(Approval No.108201)
文摘This paper uses the latest data to analyze the historical patterns and the current situation of the technology structure of China' commodities imports, the structure of China's commodities imports from 19 countries and regions, and China's interdependent relationship with its trade partners on the basis of studying 230 kinds of manufactured products categorized by their technological intensity. The results show that during the period of 1995-2011, the share of low technology (low-tech) products and medium technology (medium-tech) products declined," the share of primary products, resource- based products, and high technology (high-tech) products increased; high-tech products had taken the largest share, bypassing low-tech and medium-tech products, as early as 2000; different types of countries exported different kinds of commodities to China and had different positions in China's imports; China had relatively high interdependent relations with Japan, South Korea and China's Taiwan; China had relatively low interdependent relations with the United States, Germany, France and the Netherlands; China's import dependence on major developing countries and emerging developing countries was less than these countries' export dependence on China; China was the leading export destination for major developing countries and emerging developing countries. Generally speaking, the development of China's import trade is inclusive, and China shares its growth with other countries. It not only promotes developing countries'exports but also enhances developed countries' exports.
文摘Every developing country has to meet the challenge of overcoming a condition of subalterrnity. After the victory of the Revolution in 1959, Cuba tackled this challenge in a very original way, prioritizing the development of scientific and technical know-how and of an advanced scientific system. Moreover, it pursued this goal with an extremely open attitude, using characteristic Cuban resourcefulness while at the same time taking advantage of every possible support and collaboration. While the country was increasingly integrated into the Soviet system and the Council for Mutual Economic Assistance (COMECON), and therefore benefited from a close collaboration with the Soviet Union and the Eastern European countries' higher education and scientific systems, nevertheless it constantly sought collaboration with scientists and institutions in other countries as well, in particular in the Western world. The most meaningful instance of this collaboration is the development since the 1980s of an advanced biotechnological and biomedical system, which was created independently by the Soviet Union. Quite remarkably, when the socialist system collapsed, though Cuba faced a critical situation, the strategic choice was made not to cut support to this scientific sector, but rather to reinforce it. At present Cuba produces and exports advanced and in some cases unique vaccines and drugs, and this sector ranks as third in the country's source of current hard currency.
基金Supported by the National Natural Science Foundation of China(21276126,21306089)the Jiangsu Province Higher Education Natural Science Foundation(09KJA530004,13KJB530006)
文摘A reaction coupling system of transesterification and methoxycarbonylation with methyl phenyl carbonate (MPC) as intermediate was established to efficiently prepare 1,6-hexamethylene diurethane (HDU) from 1,6- bexametbylene diamine (HDA). The feasibility of the system was explored using the thermodynamics analysis, the reaction mechanism and the experiment results. The optimal reaction was carried out to get higher HDU yield. The thermodynamic analysis showed that the metboxycarbonylation of HDA with MPC, the Gibbs free energy of which was negative, was a spontaneous process. Furthermore, the equilibrium constant of the methoxycarbonylation of HDA with MPC was much greater than that of the transesterification of dimethyl carbonate (DMC) with phenol, so the reaction coupling could be realized under mild conditions. The reaction mechanism analysis indicated that phenoxy anion was the key spedes for reaction coupling. Higher MPC concentration was detected when sodium phenoxide was used as transesterification reactant with DMC, since the phenoxy anion of sodium phenoxide could be dissociated more easily. Sodium pbenoxide was more suitable to prepare HHDU through reaction coupling. A yield of HDU as high as 98.3% could be reached under the optimal conditions of mPhONa/mDMC = 0.027 and nDMC/nHDa = 8/1 at 90 ℃ in 2 h.
文摘To evaluate the relative effectiveness of the input and output of the high-tech industry in China's 31 provinces (including municipalities and autonomous regions), DEA evaluation model was constructed using data envelopment analysis (DEA), and DEA evaluation model was solved using Deap2.1 software, for the purpose of obtaining the DEA efficiency and the non-DEA efficiency in all the provinces (including municipalities and autonomous regions). Then, the comprehensive efficiency, technical efficiency, scale efficiency, scale return, and projection analysis were analyzed. Finally, the provinces of the non-DEA efficiency are sorted according to three efficiencies, and also a goal of improvement is proposed for the purpose of expanding technology investment in the provinces of the DEA efficiency.