The paper deals with the application of multiwall carbon nanotubes(CNTs) to the adsorption of dyes from wastewater. Textile dyes are dangerous and diffused pollutant in wastewater, and the paper results confirmed the ...The paper deals with the application of multiwall carbon nanotubes(CNTs) to the adsorption of dyes from wastewater. Textile dyes are dangerous and diffused pollutant in wastewater, and the paper results confirmed the good adsorption ability of CNTs, with respect to classic active carbon, even for different dye types. The effect of surface treatments of CNTs was primarily investigated, revealing that neither the presence of residual catalyst nor common surface treatment(oxidation) affects the CNT's performances. Therefore less expensive nonpurified CNTs were assessed as good and economically convenient alternative for the process. In order to gain in generality in adsorption kinetic modelling, the parameters of the "best fitting" pseudo-second order model have been correlated to the main process variables(the dye initial concentration and the specific mass of CNTs.) setting-up a predictive kinetic model useful design new application of these materials in currently operating industrial operations for adsorption. In addition, isothermal data were used to screen all the relevant adsorption isotherms models and the Temkin model was confirmed as the more effective to accurately fit equilibrium data for any of the considered different dye types.展开更多
This paper argues that it is important to distinguish between the real rate of interest on money and the profitability of business enterprise. The former is a purely financial or monetary phenomenon （as claimed by Ke...This paper argues that it is important to distinguish between the real rate of interest on money and the profitability of business enterprise. The former is a purely financial or monetary phenomenon （as claimed by Keynes） and the latter is in the nature of a surplus over and above the costs of production, including financing costs. There is an inverse relationship between the real rate of interest on money and the average mark-up or profit share. A synthetic theory of profit illustrates these points.展开更多
Investigation of protein-DNA interactions provides important information for understanding gene function and regulation, but identification and validation of specific interactions remain major challenges in the post-g...Investigation of protein-DNA interactions provides important information for understanding gene function and regulation, but identification and validation of specific interactions remain major challenges in the post-genomics era. Therefore, effective and economical methods to assess protein-DNA interactions are highly sought-after by molec- ular biologists.展开更多
The theoretical origins of supply theory and supply-side structural reform lie in British and French classical economics, with their longstanding interest in supply, rather than in the later emergence of Jean-Baptiste...The theoretical origins of supply theory and supply-side structural reform lie in British and French classical economics, with their longstanding interest in supply, rather than in the later emergence of Jean-Baptiste Say and Say＇s Law, which attempts to deny the possibility of economic crises. Marx deepened supply theory, holding that production （supply） structure and product （income） distribution structure depended on the nature and structure of relations of production. This theory has been especially significant in guiding supply-side structural reform in China. The main reference value of American supply-side economics lies in some of its policy proposals for reforming and managing supply. Supply-side structural reform in China requires the development of a socialist supply theory with Chinese characteristics.展开更多
文摘The paper deals with the application of multiwall carbon nanotubes(CNTs) to the adsorption of dyes from wastewater. Textile dyes are dangerous and diffused pollutant in wastewater, and the paper results confirmed the good adsorption ability of CNTs, with respect to classic active carbon, even for different dye types. The effect of surface treatments of CNTs was primarily investigated, revealing that neither the presence of residual catalyst nor common surface treatment(oxidation) affects the CNT's performances. Therefore less expensive nonpurified CNTs were assessed as good and economically convenient alternative for the process. In order to gain in generality in adsorption kinetic modelling, the parameters of the "best fitting" pseudo-second order model have been correlated to the main process variables(the dye initial concentration and the specific mass of CNTs.) setting-up a predictive kinetic model useful design new application of these materials in currently operating industrial operations for adsorption. In addition, isothermal data were used to screen all the relevant adsorption isotherms models and the Temkin model was confirmed as the more effective to accurately fit equilibrium data for any of the considered different dye types.
文摘This paper argues that it is important to distinguish between the real rate of interest on money and the profitability of business enterprise. The former is a purely financial or monetary phenomenon （as claimed by Keynes） and the latter is in the nature of a surplus over and above the costs of production, including financing costs. There is an inverse relationship between the real rate of interest on money and the average mark-up or profit share. A synthetic theory of profit illustrates these points.
基金supported by the National Natural Science Foundation of China (31471564) to L. C
文摘Investigation of protein-DNA interactions provides important information for understanding gene function and regulation, but identification and validation of specific interactions remain major challenges in the post-genomics era. Therefore, effective and economical methods to assess protein-DNA interactions are highly sought-after by molec- ular biologists.
基金part of the results of the National Social Science Fund of China Key Project "A Study of the Self-Development Capabilities of the Chinese Economy"(15ZDB133)
文摘The theoretical origins of supply theory and supply-side structural reform lie in British and French classical economics, with their longstanding interest in supply, rather than in the later emergence of Jean-Baptiste Say and Say＇s Law, which attempts to deny the possibility of economic crises. Marx deepened supply theory, holding that production （supply） structure and product （income） distribution structure depended on the nature and structure of relations of production. This theory has been especially significant in guiding supply-side structural reform in China. The main reference value of American supply-side economics lies in some of its policy proposals for reforming and managing supply. Supply-side structural reform in China requires the development of a socialist supply theory with Chinese characteristics.
