This article introduces the concepts of international trade procedures simplification and standardization, and illustrates implememt procedures and methods, furthermore, it puts forward proposals for training of inter...This article introduces the concepts of international trade procedures simplification and standardization, and illustrates implememt procedures and methods, furthermore, it puts forward proposals for training of international trade procedures simplification and standardization.展开更多
Based on the time series of China’s maize trade and domestic maize price,the article analyzes the relationship between domestic maize price and China’s maize international trade by using empirical methods.The result...Based on the time series of China’s maize trade and domestic maize price,the article analyzes the relationship between domestic maize price and China’s maize international trade by using empirical methods.The results show that there is a connection between domestic maize prices and China's maize international trade,but the link is not very close.Domestic maize price is the cause of China’s maize international trade change,but its impact is very limited;China's maize international trade also can make some difference on the domestic maize price.Based on the results of research,the article brings three suggestion and expectation to adjust China’s maize international trade and the cost control reasonably in order to stabilize domestic maize price and maize yield,and to protect domestic grain security.展开更多
The objective of Autoregressive Distributed Lag （ARDL） investigation of macroeconomic mechanisms on ASEAN-5 stock earnings equation can contribute to analyzing and demonstrating macroeconomic forces acting a statist...The objective of Autoregressive Distributed Lag （ARDL） investigation of macroeconomic mechanisms on ASEAN-5 stock earnings equation can contribute to analyzing and demonstrating macroeconomic forces acting a statistically and economically significant effect on rate of return of securities for a given time through the application of the ARDL approach to cointegration when the variables are mixed degrees of integration in cointegrated time series, i.e. I（0） and I（1）. This results in a long-run or a short-run relationship between macroeconomic force acting for a given time affecting 24 quarterly rates of return for listed companies in Information and Communication Technologies OCT） sector of Stock Exchange of Thailand （SET）, the Kuala Lumpur Composite Index （KLSE） index （Malaysia）, Financial Times Share Index （FTSI）, Philippine Stock Exchange （PSE）, and Jakarta Composite Index （JKSE） （Indonesia）. The impulses of three ASEAN macroeconomic forces---GDPt, EXt, and INTt acting for a given time influence the earnings of selected 23 1CT returns for listed companies on both domestic investments and outsider investments in the same period. This paper has investigated how other-concerning macroeconomic force acting might interrelate with rate of return of securities in the ICT sector, debt and financial innovations, in line with some significant formalized facts. The funding of capital inflow in part of ICT securities was statistically globally significant to recognize significant achievement in ICT specific pathways to distinction as the science of accomplishment. The public sector performing as a key purchaser of ICT security solutions related to integrate the ASEAN exchange members into modern capitalization can lead to adverse effects, such as risky investment-hub interventions due to the mixing financial systems in three ASEAN regional integrations through investments.展开更多
With the impetus of the WTO and the further opening of China＇s international service trade in education, this paper is based on the background of China＇s national strategy ＂one belt ＆ one road＂, analyzing Guangzh...With the impetus of the WTO and the further opening of China＇s international service trade in education, this paper is based on the background of China＇s national strategy ＂one belt ＆ one road＂, analyzing Guangzhou higher education, its internationalization driving force and popularization value, ranging from the perspectives of higher education resources excess, the domestic university funding cuts, and the transnational education services output in developed countries to alleviate its school funds shortage to further introduction of foreign high-quality educational resources due to not fully meeting the requirements of domestic demand in developing and less developed countries, with expectation to promote the development of education internationalization healthily and orderly.展开更多
The influence of the textural and acidic properties ofγ‐Al2O3,(γ+χ)‐Al2O3,and?‐Al2O3on the catalytic activity,selectivity,and stability of direct H2S oxidation has been studied.A comparison of the H2S‐to‐S con...The influence of the textural and acidic properties ofγ‐Al2O3,(γ+χ)‐Al2O3,and?‐Al2O3on the catalytic activity,selectivity,and stability of direct H2S oxidation has been studied.A comparison of the H2S‐to‐S conversion effectiveness of aluminas with their acidic properties(identified by Fourier transform infrared spectroscopy and temperature programmed desorption of NH3)shows that H2S adsorption occurs predominantly on weak Lewis acid sites(LAS).γ‐Alumina samples containing aχ‐phase and/or modified Mg2+ions have a greater concentration of weak LAS and exhibit greater catalytic activity.When alumina is treated with a sulfuric acid solution,strong LAS appear and the number of LAS decreases significantly.Modification of alumina with hydrochloric acid has a limited effect on LAS strength.Weak LAS are retained and double in number compared to that present in the unmodified alumina,but the treated sample has Al?Cl bonds.Alumina samples modified by sulfate and chloride anions exhibit poor catalytic activity in H2S oxidation.展开更多
In this study, the water balance-based Precipitation-Evapotranspiration-Runoff (PER) method combined with the land surface model Variable Infiltration Capacity (VIC) was used to estimate the spatiotemporal variations ...In this study, the water balance-based Precipitation-Evapotranspiration-Runoff (PER) method combined with the land surface model Variable Infiltration Capacity (VIC) was used to estimate the spatiotemporal variations of terrestrial water storage (TWS) for two periods, 1982-2005 (baseline) and 2071-2100, under future climate scenarios A2 and B2 in the Yangtze River basin. The results show that the estimated TWS during the baseline period and under the two future climate scenarios have similar seasonal amplitudes of 60-70 mm. The higher values of TWS appear in June during the baseline period and under the B2 scenario, whereas the TWS under A2 shows two peaks in response to the related precipitation pattern. It also shows that the TWS is recharged from February to June during the baseline period, but it is replenished from March to June under the A2 and B2 scenarios. An analysis of the standard derivation of seasonal and interannual TWS time series under the three scenarios demonstrates that the seasonal TWS of the southeastern part of the Yangtze River basin varies remarkably and that the southeastern and central parts of the basin have higher variations in interannual TWS. With respect to the first mode of the Empirical Orthogonal Function (EOF), the inverse-phase change in seasonal TWS mainly appears across the Guizhou-Sichuan-Shaanxi belt, and the entire basin generally represents a synchronous change in interannual TWS. As a whole, the TWS under A2 presents a larger seasonal variation whereas that under B2 displays a greater interannual variation. These results imply that climate change could trigger severe disasters in the southeastern and central parts of the basin.展开更多
The nanopore size effect on translocation of poly(dT)30through Si3N4 membrane is investigated.In this paper,we report that the speed of the poly(dT)30 transport through Si3N4 nanopores can be slowed down by half throu...The nanopore size effect on translocation of poly(dT)30through Si3N4 membrane is investigated.In this paper,we report that the speed of the poly(dT)30 transport through Si3N4 nanopores can be slowed down by half through increasing the nanopore diameter from 4.8 nm to 10.8 nm.The results are consistent with our simulation results.Besides,the current blockage induced by DNA passing through the nanopore is less obvious as pore diameter is larger,which is in good agreement with the theoretical prediction.The conclusion about DNA transport through nanopores is beneficial for the design of DNA sequencing devices.展开更多
In this paper,we investigate the behaviors of dual fermion condensate in QED 3 under variation of temperature.By means of Dyson-Schwinger equation for the fermion propagator,we extract the dual fermion condensate and ...In this paper,we investigate the behaviors of dual fermion condensate in QED 3 under variation of temperature.By means of Dyson-Schwinger equation for the fermion propagator,we extract the dual fermion condensate and compare its behavior with the ordinary chiral fermion condensate and the chiral susceptibility.It is found that the dual fermion condensate cannot be regarded as the order parameter for the confinement-deconfinement phase transition in QED 3.Furthermore,the change of the dual fermion condensate around the chiral phase transition point observed in the present work must therefore be interpreted as solely induced by the chiral transition.展开更多
文摘This article introduces the concepts of international trade procedures simplification and standardization, and illustrates implememt procedures and methods, furthermore, it puts forward proposals for training of international trade procedures simplification and standardization.
基金Humanities and Social Sciences Department of education of Hubei Province Key Projects(15D024)Phased Research ResultsOpen Fund General Program from Hubei Collaborative Innovation Centre for Grain Industry(MS2015004)
文摘Based on the time series of China’s maize trade and domestic maize price,the article analyzes the relationship between domestic maize price and China’s maize international trade by using empirical methods.The results show that there is a connection between domestic maize prices and China's maize international trade,but the link is not very close.Domestic maize price is the cause of China’s maize international trade change,but its impact is very limited;China's maize international trade also can make some difference on the domestic maize price.Based on the results of research,the article brings three suggestion and expectation to adjust China’s maize international trade and the cost control reasonably in order to stabilize domestic maize price and maize yield,and to protect domestic grain security.
文摘The objective of Autoregressive Distributed Lag （ARDL） investigation of macroeconomic mechanisms on ASEAN-5 stock earnings equation can contribute to analyzing and demonstrating macroeconomic forces acting a statistically and economically significant effect on rate of return of securities for a given time through the application of the ARDL approach to cointegration when the variables are mixed degrees of integration in cointegrated time series, i.e. I（0） and I（1）. This results in a long-run or a short-run relationship between macroeconomic force acting for a given time affecting 24 quarterly rates of return for listed companies in Information and Communication Technologies OCT） sector of Stock Exchange of Thailand （SET）, the Kuala Lumpur Composite Index （KLSE） index （Malaysia）, Financial Times Share Index （FTSI）, Philippine Stock Exchange （PSE）, and Jakarta Composite Index （JKSE） （Indonesia）. The impulses of three ASEAN macroeconomic forces---GDPt, EXt, and INTt acting for a given time influence the earnings of selected 23 1CT returns for listed companies on both domestic investments and outsider investments in the same period. This paper has investigated how other-concerning macroeconomic force acting might interrelate with rate of return of securities in the ICT sector, debt and financial innovations, in line with some significant formalized facts. The funding of capital inflow in part of ICT securities was statistically globally significant to recognize significant achievement in ICT specific pathways to distinction as the science of accomplishment. The public sector performing as a key purchaser of ICT security solutions related to integrate the ASEAN exchange members into modern capitalization can lead to adverse effects, such as risky investment-hub interventions due to the mixing financial systems in three ASEAN regional integrations through investments.
文摘With the impetus of the WTO and the further opening of China＇s international service trade in education, this paper is based on the background of China＇s national strategy ＂one belt ＆ one road＂, analyzing Guangzhou higher education, its internationalization driving force and popularization value, ranging from the perspectives of higher education resources excess, the domestic university funding cuts, and the transnational education services output in developed countries to alleviate its school funds shortage to further introduction of foreign high-quality educational resources due to not fully meeting the requirements of domestic demand in developing and less developed countries, with expectation to promote the development of education internationalization healthily and orderly.
基金This work was conducted within the framework of Program of the Russian Academy of Sciences and the Federal Agency for Scientific Organizations (state‐guaranteed order for BIC, Project АААА‐А17‐117041710086‐6).
文摘The influence of the textural and acidic properties ofγ‐Al2O3,(γ+χ)‐Al2O3,and?‐Al2O3on the catalytic activity,selectivity,and stability of direct H2S oxidation has been studied.A comparison of the H2S‐to‐S conversion effectiveness of aluminas with their acidic properties(identified by Fourier transform infrared spectroscopy and temperature programmed desorption of NH3)shows that H2S adsorption occurs predominantly on weak Lewis acid sites(LAS).γ‐Alumina samples containing aχ‐phase and/or modified Mg2+ions have a greater concentration of weak LAS and exhibit greater catalytic activity.When alumina is treated with a sulfuric acid solution,strong LAS appear and the number of LAS decreases significantly.Modification of alumina with hydrochloric acid has a limited effect on LAS strength.Weak LAS are retained and double in number compared to that present in the unmodified alumina,but the treated sample has Al?Cl bonds.Alumina samples modified by sulfate and chloride anions exhibit poor catalytic activity in H2S oxidation.
基金supported by the National Basic Research Program of China under Grants 2010CB951001 and 2010CB428403the National Natural Science Foundation of China under Grant 41075062the R&D Special Fund for Public Welfare Industry (Meteorology) under Grant GYHY201006037
文摘In this study, the water balance-based Precipitation-Evapotranspiration-Runoff (PER) method combined with the land surface model Variable Infiltration Capacity (VIC) was used to estimate the spatiotemporal variations of terrestrial water storage (TWS) for two periods, 1982-2005 (baseline) and 2071-2100, under future climate scenarios A2 and B2 in the Yangtze River basin. The results show that the estimated TWS during the baseline period and under the two future climate scenarios have similar seasonal amplitudes of 60-70 mm. The higher values of TWS appear in June during the baseline period and under the B2 scenario, whereas the TWS under A2 shows two peaks in response to the related precipitation pattern. It also shows that the TWS is recharged from February to June during the baseline period, but it is replenished from March to June under the A2 and B2 scenarios. An analysis of the standard derivation of seasonal and interannual TWS time series under the three scenarios demonstrates that the seasonal TWS of the southeastern part of the Yangtze River basin varies remarkably and that the southeastern and central parts of the basin have higher variations in interannual TWS. With respect to the first mode of the Empirical Orthogonal Function (EOF), the inverse-phase change in seasonal TWS mainly appears across the Guizhou-Sichuan-Shaanxi belt, and the entire basin generally represents a synchronous change in interannual TWS. As a whole, the TWS under A2 presents a larger seasonal variation whereas that under B2 displays a greater interannual variation. These results imply that climate change could trigger severe disasters in the southeastern and central parts of the basin.
基金supported by the National Basic Research Program of China(Grant No.2011CB707605)the Natural Science Foundation of China(Grants Nos.50925519,51003015,and 51005048)the Research Funding for the Doctor Program from China Educational Ministry(Grant No.20100092110051)
文摘The nanopore size effect on translocation of poly(dT)30through Si3N4 membrane is investigated.In this paper,we report that the speed of the poly(dT)30 transport through Si3N4 nanopores can be slowed down by half through increasing the nanopore diameter from 4.8 nm to 10.8 nm.The results are consistent with our simulation results.Besides,the current blockage induced by DNA passing through the nanopore is less obvious as pore diameter is larger,which is in good agreement with the theoretical prediction.The conclusion about DNA transport through nanopores is beneficial for the design of DNA sequencing devices.
基金supported by the National Natural Science Foundation of China (Grant Nos.11047005,11105029,10935001 and 11075075)
文摘In this paper,we investigate the behaviors of dual fermion condensate in QED 3 under variation of temperature.By means of Dyson-Schwinger equation for the fermion propagator,we extract the dual fermion condensate and compare its behavior with the ordinary chiral fermion condensate and the chiral susceptibility.It is found that the dual fermion condensate cannot be regarded as the order parameter for the confinement-deconfinement phase transition in QED 3.Furthermore,the change of the dual fermion condensate around the chiral phase transition point observed in the present work must therefore be interpreted as solely induced by the chiral transition.
