By using F-expansion method proposed recently, we derive the periodic wave solution expressed by Jacobi elliptic functions for Konopelchenko-Dubrovsky equation. In the limit case, the solitary wave solution and other ...By using F-expansion method proposed recently, we derive the periodic wave solution expressed by Jacobi elliptic functions for Konopelchenko-Dubrovsky equation. In the limit case, the solitary wave solution and other type of the traveling wave solutions are derived.展开更多
In this paper, fibrous chelating exchangers with-N(CH2COOH)2 group have been prepared for the first time by a weakly basic anion exchange fiber (aminated fiber) as the starting materials. The fibers were quite effecti...In this paper, fibrous chelating exchangers with-N(CH2COOH)2 group have been prepared for the first time by a weakly basic anion exchange fiber (aminated fiber) as the starting materials. The fibers were quite effective for the adsorption of heavy metal ion such as Cu2+. In addition, IR spectrum of the structure of fibers confirms that it is feasible to prepare iminocarboxylic chelating fiber through direct carboxylation reaction.展开更多
Based on a group of axioms, a measure of information discrepancyamong multiple information sources has been introduced in and it possesses some peculiar properties compared with other measures of information discrepa...Based on a group of axioms, a measure of information discrepancyamong multiple information sources has been introduced in and it possesses some peculiar properties compared with other measures of information discrepancy, so it can be used in some areas, where the traditional measures are not valid or not efficient, for example, in the study of DNA sequence comparison, prediction of protein structure class, evidence analysis, questionnaire analysis, and so on. In this paper, using the optimization techniques, we prove that it is a distance function and show that it is also an approximation of χ2 function. These two properties will stimulate further applications of the measure to information processing and system analysis.展开更多
China became a member of the World Trade Organization (WTO) in November, 2001.During the three years since then, foreign banks substantially increased their presence inChina. Competition between foreign and domestic b...China became a member of the World Trade Organization (WTO) in November, 2001.During the three years since then, foreign banks substantially increased their presence inChina. Competition between foreign and domestic banks in certain fields is increasinglyvisible. However, the pace of foreign bank expansion in China appears short of earlierexpectations. Chinese banks have in general responded positively and achieved certainprogress in improving their service, yet basic problems remain unsolved in the bankingsystem. Several challenges to Chinas financial system have already surfaced.展开更多
Here, the “Chinese currency area” refers to currency-operational areas or scope where Chinese currency circulates as a single currency. Although the scale and aggregate size of the economies of the Chinese mainland,...Here, the “Chinese currency area” refers to currency-operational areas or scope where Chinese currency circulates as a single currency. Although the scale and aggregate size of the economies of the Chinese mainland, Taiwan, Hong Kong and Macao differ sharply, their per capita GDPs do not differ as much. This indicates that currency unification in these areas is in some sense feasible.展开更多
China's financial reform lags behind economic growth. Econometric modelling shows that the higher the proportion of the non-state-owned sector, the faster economic growth. The role of advanced banking in stimulati...China's financial reform lags behind economic growth. Econometric modelling shows that the higher the proportion of the non-state-owned sector, the faster economic growth. The role of advanced banking in stimulating economic growth is not,展开更多
This paper examines the impact of stock ownership segmentation in listed companies on theinvestment banking business in China. Assuming that holders of non-floatable shares tryto maximize book value of shares, we exp...This paper examines the impact of stock ownership segmentation in listed companies on theinvestment banking business in China. Assuming that holders of non-floatable shares tryto maximize book value of shares, we explain why controlling shareholders will prefer toraise equity financing through the higher-priced public equity market. We explain whymergers and acquisitions of listed companies on the exchanges are all unlikely to be seen inChina. Finally, we shed light on a commonly observed sequential financing pattern inChina why Chinese firms restructure through a process of mergers and acquisitions andthen refinance through the equity market. Our results show that the Chinese investmentbanking business is severely constrained in the direction of equity financing.展开更多
In this paper, the control policy for environment with two kinds of irreversibility, which work in opposite directions and uncertainty of cost is regarded as an investment decision. By using real-option theory, the pa...In this paper, the control policy for environment with two kinds of irreversibility, which work in opposite directions and uncertainty of cost is regarded as an investment decision. By using real-option theory, the paper presents the model of the optimal control policy for environment under the science and technology that can reduce environment pollution stochastic occur. The paper has discussed the effects of changes in the various parameters on the critical value at which the policy should be adopted. The results show thatthe optimal control policy is quite sensitive to the science and technology which can reduce environment pollution stochastic occur, pointing to the importance of carefully accounting for its impact in determining the control policy for environment.展开更多
基金Supported by the Natural Science Foundation of Education Committee of Henan Province(2003110003)Supported by the Natural Science Foundation of Henan Province(0111050200)
文摘By using F-expansion method proposed recently, we derive the periodic wave solution expressed by Jacobi elliptic functions for Konopelchenko-Dubrovsky equation. In the limit case, the solitary wave solution and other type of the traveling wave solutions are derived.
文摘In this paper, fibrous chelating exchangers with-N(CH2COOH)2 group have been prepared for the first time by a weakly basic anion exchange fiber (aminated fiber) as the starting materials. The fibers were quite effective for the adsorption of heavy metal ion such as Cu2+. In addition, IR spectrum of the structure of fibers confirms that it is feasible to prepare iminocarboxylic chelating fiber through direct carboxylation reaction.
基金Thiswork issupported by National Natural Science Foundation of China(90 10 30 33,39830 0 70 ) andNKBRSF (G19980 30 60 )
文摘Based on a group of axioms, a measure of information discrepancyamong multiple information sources has been introduced in and it possesses some peculiar properties compared with other measures of information discrepancy, so it can be used in some areas, where the traditional measures are not valid or not efficient, for example, in the study of DNA sequence comparison, prediction of protein structure class, evidence analysis, questionnaire analysis, and so on. In this paper, using the optimization techniques, we prove that it is a distance function and show that it is also an approximation of χ2 function. These two properties will stimulate further applications of the measure to information processing and system analysis.
文摘China became a member of the World Trade Organization (WTO) in November, 2001.During the three years since then, foreign banks substantially increased their presence inChina. Competition between foreign and domestic banks in certain fields is increasinglyvisible. However, the pace of foreign bank expansion in China appears short of earlierexpectations. Chinese banks have in general responded positively and achieved certainprogress in improving their service, yet basic problems remain unsolved in the bankingsystem. Several challenges to Chinas financial system have already surfaced.
文摘Here, the “Chinese currency area” refers to currency-operational areas or scope where Chinese currency circulates as a single currency. Although the scale and aggregate size of the economies of the Chinese mainland, Taiwan, Hong Kong and Macao differ sharply, their per capita GDPs do not differ as much. This indicates that currency unification in these areas is in some sense feasible.
文摘China's financial reform lags behind economic growth. Econometric modelling shows that the higher the proportion of the non-state-owned sector, the faster economic growth. The role of advanced banking in stimulating economic growth is not,
文摘This paper examines the impact of stock ownership segmentation in listed companies on theinvestment banking business in China. Assuming that holders of non-floatable shares tryto maximize book value of shares, we explain why controlling shareholders will prefer toraise equity financing through the higher-priced public equity market. We explain whymergers and acquisitions of listed companies on the exchanges are all unlikely to be seen inChina. Finally, we shed light on a commonly observed sequential financing pattern inChina why Chinese firms restructure through a process of mergers and acquisitions andthen refinance through the equity market. Our results show that the Chinese investmentbanking business is severely constrained in the direction of equity financing.
文摘In this paper, the control policy for environment with two kinds of irreversibility, which work in opposite directions and uncertainty of cost is regarded as an investment decision. By using real-option theory, the paper presents the model of the optimal control policy for environment under the science and technology that can reduce environment pollution stochastic occur. The paper has discussed the effects of changes in the various parameters on the critical value at which the policy should be adopted. The results show thatthe optimal control policy is quite sensitive to the science and technology which can reduce environment pollution stochastic occur, pointing to the importance of carefully accounting for its impact in determining the control policy for environment.
