CoCu/TiO_2 catalysts promoted using alkali metals（Li, Na, K, Rb, and Cs） were prepared by the homogeneous deposition-precipitation method followed by the incipient wetness impregnation method. The influences of the ...CoCu/TiO_2 catalysts promoted using alkali metals（Li, Na, K, Rb, and Cs） were prepared by the homogeneous deposition-precipitation method followed by the incipient wetness impregnation method. The influences of the alkali metals on the physicochemical properties of the CoCu/TiO_2 catalysts and the catalytic performance for CO_2 hydrogenation to long-chain hydrocarbons（C_（5＋））were investigated in this work. According to the characterization of the catalysts based on X-ray photoelectron spectroscopy, X-ray diffraction, CO_2 temperature-programmed desorption（TPD）, and H_2-TPD, the introduction of alkali metals could increase the CO_2 adsorption and decrease the H_2 chemisorption, which could suppress the formation of CH_4, enhance the production of C_（5＋）, and decrease the hydrogenation activity. Among all the promoters, the Na-modified CoCu/TiO_2 catalyst provided the maximum C_（5＋） yield of 5.4%, with a CO_2 conversion of 18.4% and C_（5＋） selectivity of42.1%, because it showed the strongest basicity and a slight decrease in the amount of H_2 desorption;it also exhibited excellent catalytic stability of more than 200 h.展开更多
The removal of antibiotics from water by clay minerals has become the focus of research due to their strong adsorptive ability. In this study, adsorption of chlortetracycline (CTC) onto rectories was conducted and the...The removal of antibiotics from water by clay minerals has become the focus of research due to their strong adsorptive ability. In this study, adsorption of chlortetracycline (CTC) onto rectories was conducted and the effects of time, concentration, temperature and pH were investigated. Experimental results showed that adsorption equilibrium was reached in 8 h. Based on the Langmuir model, the maximum adsorption capacity of CTC on rectories was 177.7 mg·g 1 at room temperature. By the study on adsorption dynamics, it is found that the kinetic date fit the pseudo-second-order model well. The adsorption of CTC by rectories is endothermic and the free energy is in the range of 10 to 30 kJ·mol 1 . The pH value of solution has significant effects on adsorption and the optimal pH is at acidity (pH 2-6). At concentration of 2500 mg·L 1 , the intercalated CTC produces an interlayer space with a height of 1.38 nm, which is 1.12 nm in raw rectories, suggesting that the adsorption occurs between layers of rectories.展开更多
The development of the Internet coincides with 90s financial crises. The net seemed to realize what Karl Polanyi defined social self-defence from the capitalism against the transformation of labour, land and money in ...The development of the Internet coincides with 90s financial crises. The net seemed to realize what Karl Polanyi defined social self-defence from the capitalism against the transformation of labour, land and money in fictitious commodities. In this paper we try to consider how Internet, and in particular social network, has modified many deep aspects of our life. With two different approaches, sociological and philosophical, we try to understand how social networks support new shapes of happiness and trust in an economic crisis context.展开更多
Unit trust is a collective investment scheme for investors, who seek to meet their long-term investment objectives for better returns with diversified portfolios. Unit trust is one of the largest sources of funding in...Unit trust is a collective investment scheme for investors, who seek to meet their long-term investment objectives for better returns with diversified portfolios. Unit trust is one of the largest sources of funding in Malaysia and plays a significant role in financial development and economic growth. The objective of this paper is to provide an overview of the development and the performance trends of unit trust investment schemes in Malaysia. There are several types of unit trust products available in Malaysia： both conventional as well as Islamic unit trust schemes （UTSs）. The rapid growth of investment management industry over the last 10 years was largely driven by the unit trust industry, in which the net asset value （NAV） grew annually by 18.0% from RM43.3 billion in 2000 to RM226.8 billion in 2010. The penetration rate of the unit trust industry rose from 10.0% in 2000 to 17.8% in 2010.展开更多
This paper makes use of statistical tools of parameter correlation, multi-parameter regression, and does experimental analysis on issues of risk diversification of portfolios entrusted by National Social Security Fund...This paper makes use of statistical tools of parameter correlation, multi-parameter regression, and does experimental analysis on issues of risk diversification of portfolios entrusted by National Social Security Fund (NSSF). The issues are industry related investment fields distribution, the trend of capitalization movement, and investment style factors in stock selection. The results show that there are risk problems with portfolios entrusted by NSSF, which include similar investment fields distribution trend, little difference among portfolios, and high risk preference degree.展开更多
This paper gave an overview introduction about umbrella partnership real estate investment trust (UPREIT) to the readers who are not related to real estate and accounting major. To show how UPREIT defer capital gain t...This paper gave an overview introduction about umbrella partnership real estate investment trust (UPREIT) to the readers who are not related to real estate and accounting major. To show how UPREIT defer capital gain taxes,makes good cash flow and maximize profit in real estate finance,the paper included the theory and structure of UPREIT(real estate investment trust),partnership issues,advantage and disadvantage,and created a proforma to demonstrate how UPREIT works.展开更多
The competition of Multinational Corporation is getting more and more intense with the economy globalization, requiring companies to standardize operations to stay competitive. Shared Services is an effective way of k...The competition of Multinational Corporation is getting more and more intense with the economy globalization, requiring companies to standardize operations to stay competitive. Shared Services is an effective way of keeping costs down and improving efficiency by moving certain functions to one central location. Financial Shared Services is one of the typical representatives. In this essay, the advantages and disadvantages of Financial Shared Services will be discussed on the case of Motorola and explored with some possible solutions.展开更多
This study aims to illustrate the Japanese electricity supply system after the earthquake with consideration of Japanese uniqueness including its 10 separate grids with weak connections between them and the geographic...This study aims to illustrate the Japanese electricity supply system after the earthquake with consideration of Japanese uniqueness including its 10 separate grids with weak connections between them and the geographical gap between renewable potential and electricity consumptions using GIS data for a TIMES model. We take FIT （feed-in-tariff） as a policy measure to promote renewables. To consider policies to promote renewables, we need a modelling approach where the electricity system of the entire country is represented with extremely disaggregated information on existing stock and future potentials of renewables. By building up technology models based on detailed disaggregate information on existing stocks and future potentials of renewables at the sub-regional level, we can develop renewables-related policies which reflect more realistic conditions. According to the simulation results, high FIT prices do not guarantee more introductions of renewables. High FIT prices make the huge potential of renewables commercially viable, but at the same time, they limit the maximum introduction of renewables. In addition, a high FIT budget does not guarantee more renewable introduction.展开更多
Depending upon the descriptions of the ancient literature, such as Jin Zhen Fu （Odes to Golden Needles, 《金针赋》）, the dragon-tiger fighting needling technique has the effects to dredge the meridians, circulate qi...Depending upon the descriptions of the ancient literature, such as Jin Zhen Fu （Odes to Golden Needles, 《金针赋》）, the dragon-tiger fighting needling technique has the effects to dredge the meridians, circulate qi, activate blood, stop and remove pain. ＂Dragon＂ implies to twist the needle leftward for reinforcing, and ＂tiger＂ means to twist the needle rightward for reducing. To twist the needle leftward and rightward alternately is termed ＂fighting＂ After the arrival of the needling sensation by inserting the needle to the proper depth, the needle is first twisted leftward with the thumb forward in a method of nine yang numbers, and then twisted backward and rightward with the thumb backward in a method of six yin numbers, in alternation of reinforcing and reducing repeatedly. Therefore, the general information on clinical application of dragon-tiger fighting needling technique in the recent sixteen years is given in the following.展开更多
A simple and sensitive method for detection of captopril was established based on its obstructive effect on nanomaterial sur- face energy transfer （NSET）. It was found that the acridine orange （AO） could be adsorb...A simple and sensitive method for detection of captopril was established based on its obstructive effect on nanomaterial sur- face energy transfer （NSET）. It was found that the acridine orange （AO） could be adsorbed onto the surface of citrated-gold nanoparticles （AuNPs） through electrostatic interaction. Incidentally, the fluorescence of AO was quenched owing to the dipole-dipole interaction of NSET between AO fluorophore and the AuNPs. However, captopril could obstruct the occurrence of NSET between AO and AuNPs effectively with the formation of Au-S covalent bonds between it and the AuNPs. Consequently, AO molecules were moved away from the surface of AuNPs leading to a decline of the energy transfer efficiency. Moreover, the fluorescence of AO could be gradually restored with the addition of captopril. Under the optimal conditions, the recovered fluorescence intensity correlated linearly with the concentration of captopril in the range of 400 nmol/L-2.0μmol/L with a detection limit of 71 μmol/L. Besides, the proposed method was successfully applied for the detection of captopril in troches with the recovery of 93%-102% and the RSD lower than 2.24%. The results were in good agreement with those obtained from the HPLC method,展开更多
文摘CoCu/TiO_2 catalysts promoted using alkali metals（Li, Na, K, Rb, and Cs） were prepared by the homogeneous deposition-precipitation method followed by the incipient wetness impregnation method. The influences of the alkali metals on the physicochemical properties of the CoCu/TiO_2 catalysts and the catalytic performance for CO_2 hydrogenation to long-chain hydrocarbons（C_（5＋））were investigated in this work. According to the characterization of the catalysts based on X-ray photoelectron spectroscopy, X-ray diffraction, CO_2 temperature-programmed desorption（TPD）, and H_2-TPD, the introduction of alkali metals could increase the CO_2 adsorption and decrease the H_2 chemisorption, which could suppress the formation of CH_4, enhance the production of C_（5＋）, and decrease the hydrogenation activity. Among all the promoters, the Na-modified CoCu/TiO_2 catalyst provided the maximum C_（5＋） yield of 5.4%, with a CO_2 conversion of 18.4% and C_（5＋） selectivity of42.1%, because it showed the strongest basicity and a slight decrease in the amount of H_2 desorption;it also exhibited excellent catalytic stability of more than 200 h.
基金Supported by the Fundamental Research Funds for the Central Universities (2011YXL056)the National Program of Control and Treatment of Water Pollution (2009ZX07424-002)
文摘The removal of antibiotics from water by clay minerals has become the focus of research due to their strong adsorptive ability. In this study, adsorption of chlortetracycline (CTC) onto rectories was conducted and the effects of time, concentration, temperature and pH were investigated. Experimental results showed that adsorption equilibrium was reached in 8 h. Based on the Langmuir model, the maximum adsorption capacity of CTC on rectories was 177.7 mg·g 1 at room temperature. By the study on adsorption dynamics, it is found that the kinetic date fit the pseudo-second-order model well. The adsorption of CTC by rectories is endothermic and the free energy is in the range of 10 to 30 kJ·mol 1 . The pH value of solution has significant effects on adsorption and the optimal pH is at acidity (pH 2-6). At concentration of 2500 mg·L 1 , the intercalated CTC produces an interlayer space with a height of 1.38 nm, which is 1.12 nm in raw rectories, suggesting that the adsorption occurs between layers of rectories.
文摘The development of the Internet coincides with 90s financial crises. The net seemed to realize what Karl Polanyi defined social self-defence from the capitalism against the transformation of labour, land and money in fictitious commodities. In this paper we try to consider how Internet, and in particular social network, has modified many deep aspects of our life. With two different approaches, sociological and philosophical, we try to understand how social networks support new shapes of happiness and trust in an economic crisis context.
文摘Unit trust is a collective investment scheme for investors, who seek to meet their long-term investment objectives for better returns with diversified portfolios. Unit trust is one of the largest sources of funding in Malaysia and plays a significant role in financial development and economic growth. The objective of this paper is to provide an overview of the development and the performance trends of unit trust investment schemes in Malaysia. There are several types of unit trust products available in Malaysia： both conventional as well as Islamic unit trust schemes （UTSs）. The rapid growth of investment management industry over the last 10 years was largely driven by the unit trust industry, in which the net asset value （NAV） grew annually by 18.0% from RM43.3 billion in 2000 to RM226.8 billion in 2010. The penetration rate of the unit trust industry rose from 10.0% in 2000 to 17.8% in 2010.
文摘This paper makes use of statistical tools of parameter correlation, multi-parameter regression, and does experimental analysis on issues of risk diversification of portfolios entrusted by National Social Security Fund (NSSF). The issues are industry related investment fields distribution, the trend of capitalization movement, and investment style factors in stock selection. The results show that there are risk problems with portfolios entrusted by NSSF, which include similar investment fields distribution trend, little difference among portfolios, and high risk preference degree.
文摘This paper gave an overview introduction about umbrella partnership real estate investment trust (UPREIT) to the readers who are not related to real estate and accounting major. To show how UPREIT defer capital gain taxes,makes good cash flow and maximize profit in real estate finance,the paper included the theory and structure of UPREIT(real estate investment trust),partnership issues,advantage and disadvantage,and created a proforma to demonstrate how UPREIT works.
文摘The competition of Multinational Corporation is getting more and more intense with the economy globalization, requiring companies to standardize operations to stay competitive. Shared Services is an effective way of keeping costs down and improving efficiency by moving certain functions to one central location. Financial Shared Services is one of the typical representatives. In this essay, the advantages and disadvantages of Financial Shared Services will be discussed on the case of Motorola and explored with some possible solutions.
文摘This study aims to illustrate the Japanese electricity supply system after the earthquake with consideration of Japanese uniqueness including its 10 separate grids with weak connections between them and the geographical gap between renewable potential and electricity consumptions using GIS data for a TIMES model. We take FIT （feed-in-tariff） as a policy measure to promote renewables. To consider policies to promote renewables, we need a modelling approach where the electricity system of the entire country is represented with extremely disaggregated information on existing stock and future potentials of renewables. By building up technology models based on detailed disaggregate information on existing stocks and future potentials of renewables at the sub-regional level, we can develop renewables-related policies which reflect more realistic conditions. According to the simulation results, high FIT prices do not guarantee more introductions of renewables. High FIT prices make the huge potential of renewables commercially viable, but at the same time, they limit the maximum introduction of renewables. In addition, a high FIT budget does not guarantee more renewable introduction.
文摘Depending upon the descriptions of the ancient literature, such as Jin Zhen Fu （Odes to Golden Needles, 《金针赋》）, the dragon-tiger fighting needling technique has the effects to dredge the meridians, circulate qi, activate blood, stop and remove pain. ＂Dragon＂ implies to twist the needle leftward for reinforcing, and ＂tiger＂ means to twist the needle rightward for reducing. To twist the needle leftward and rightward alternately is termed ＂fighting＂ After the arrival of the needling sensation by inserting the needle to the proper depth, the needle is first twisted leftward with the thumb forward in a method of nine yang numbers, and then twisted backward and rightward with the thumb backward in a method of six yin numbers, in alternation of reinforcing and reducing repeatedly. Therefore, the general information on clinical application of dragon-tiger fighting needling technique in the recent sixteen years is given in the following.
基金the National Natural Science Foundation of China(21175109)the special fund of Chongqing key laboratory(CSTC)for financial assistance
文摘A simple and sensitive method for detection of captopril was established based on its obstructive effect on nanomaterial sur- face energy transfer （NSET）. It was found that the acridine orange （AO） could be adsorbed onto the surface of citrated-gold nanoparticles （AuNPs） through electrostatic interaction. Incidentally, the fluorescence of AO was quenched owing to the dipole-dipole interaction of NSET between AO fluorophore and the AuNPs. However, captopril could obstruct the occurrence of NSET between AO and AuNPs effectively with the formation of Au-S covalent bonds between it and the AuNPs. Consequently, AO molecules were moved away from the surface of AuNPs leading to a decline of the energy transfer efficiency. Moreover, the fluorescence of AO could be gradually restored with the addition of captopril. Under the optimal conditions, the recovered fluorescence intensity correlated linearly with the concentration of captopril in the range of 400 nmol/L-2.0μmol/L with a detection limit of 71 μmol/L. Besides, the proposed method was successfully applied for the detection of captopril in troches with the recovery of 93%-102% and the RSD lower than 2.24%. The results were in good agreement with those obtained from the HPLC method,
