Many studies have qualitatively explained that information and communication technology(ICT) has loosened the restrictions of distance and space on retailers' sales. Few empirical studies, however, have explored t...Many studies have qualitatively explained that information and communication technology(ICT) has loosened the restrictions of distance and space on retailers' sales. Few empirical studies, however, have explored the impact of shipping distance on online retailers' sales. This study examined the Maiyang(M-Y) store on Tmall in China as a case study to investigate the relationship between shipping distance and sales. The results showed that sales volume in 2014 at the county level did not strictly obey the distance decay law. The shipped distance of high-priced commodities may not be much longer than that of low-priced commodities. Within the scope of investigation, the relationships between income, cost, and net profit curves do not follow central place theory. Goods have neither thresholds nor ranges. The key factor in the spatial discrepancy of sales is the size of market. The impact of shipping distance on sales is not as strong as that of traditional retailers in Information Era.展开更多
By the application of life cycle assessment(LCA) methodology, this paper estimates the environmental impacts of production and disposal of traction motors used in electric vehicles in China. The results show that the ...By the application of life cycle assessment(LCA) methodology, this paper estimates the environmental impacts of production and disposal of traction motors used in electric vehicles in China. The results show that the total energy use, the criteria emissions and the greenhouse gases(GHG) emissions of a traction motor production and disposal are about 2,899,MJ, 4.5,kg and 259.5,kg per motor, respectively. Among the regulated emissions, the SOxemission ranks first by total mass, followed by CO, PM10, NOx, PM2.5, and volatile organic compound(VOC). The motor material production stage accounts for most of the energy consumption and emissions, followed by the assembly stage and the end-of-life disposal stage. In this study, the environmental performance analysis is extended to the comparison between the use of secondary material and primary material for the material production stage. It is found that using 100% secondary material results in a 52.9% reduction in energy consumption, a 49.8% reduction in regulated emissions, and a 49.3% reduction in GHG emissions compared with the use of 100% primary material.展开更多
Can choosing to sale one＇s kidney be morally permissible？ ＂No＂, Kant would answer. Humanity, whether in one＇s own person or that of any other, must never be treated merely as a means, but always at the same time ...Can choosing to sale one＇s kidney be morally permissible？ ＂No＂, Kant would answer. Humanity, whether in one＇s own person or that of any other, must never be treated merely as a means, but always at the same time as an end, is Kant＇s instruction （Groundwork 4：429）. He thought that organ sale violates this imperative. Lectures on Ethics （27：346） shows that ＂... a man is not entitled to sell his limbs for money If a man does that, he turns himself into a thing, and then anyone may treat him as they please, because he has thrown his person away....＂ This paper explains Kant＇s reasons against commerce in organs, drawing on his views on prostitution, and the moral impermissibility of sexual use within this context, a case which he himself compares to the selling of one＇s body part（s）. Can choosing to donate one＇s kidney be morally permissible？ If we take Kant＇s views at face value, it would follow that organ donation is on a par with morality only if it takes place in a context where people have gained rights over each other＇s persons （for example, in a marital context）. In this context, however, a person has a right to her partner＇s kidney should she happen to need it, which can open the path to bodily violation. Moreover, this view severely restricts the permissibility of organ donation. In this paper, I argue that a closer examination of Kant＇s views on what is involved in the idea of respecting humanity could reveal that organ donation does not violate the categorical imperative. In fact, it could be said to follow from such an imperative that we actually have a duty to organ donation.展开更多
基金Under the auspices of the National Planning Office of Philosophy and Social Science(No.17BRK010)National Natural Science Foundation of China(No.41601161)+1 种基金Natural Science Foundation of Guangdong Province(No.2017A030313224)Guangdong Planning Office of Philosophy and Social Science(No.2017GZZK16)
文摘Many studies have qualitatively explained that information and communication technology(ICT) has loosened the restrictions of distance and space on retailers' sales. Few empirical studies, however, have explored the impact of shipping distance on online retailers' sales. This study examined the Maiyang(M-Y) store on Tmall in China as a case study to investigate the relationship between shipping distance and sales. The results showed that sales volume in 2014 at the county level did not strictly obey the distance decay law. The shipped distance of high-priced commodities may not be much longer than that of low-priced commodities. Within the scope of investigation, the relationships between income, cost, and net profit curves do not follow central place theory. Goods have neither thresholds nor ranges. The key factor in the spatial discrepancy of sales is the size of market. The impact of shipping distance on sales is not as strong as that of traditional retailers in Information Era.
基金Supported by National High Technology Research and Development Program of China("863"Program,No.2011AA11A288)
文摘By the application of life cycle assessment(LCA) methodology, this paper estimates the environmental impacts of production and disposal of traction motors used in electric vehicles in China. The results show that the total energy use, the criteria emissions and the greenhouse gases(GHG) emissions of a traction motor production and disposal are about 2,899,MJ, 4.5,kg and 259.5,kg per motor, respectively. Among the regulated emissions, the SOxemission ranks first by total mass, followed by CO, PM10, NOx, PM2.5, and volatile organic compound(VOC). The motor material production stage accounts for most of the energy consumption and emissions, followed by the assembly stage and the end-of-life disposal stage. In this study, the environmental performance analysis is extended to the comparison between the use of secondary material and primary material for the material production stage. It is found that using 100% secondary material results in a 52.9% reduction in energy consumption, a 49.8% reduction in regulated emissions, and a 49.3% reduction in GHG emissions compared with the use of 100% primary material.
文摘Can choosing to sale one＇s kidney be morally permissible？ ＂No＂, Kant would answer. Humanity, whether in one＇s own person or that of any other, must never be treated merely as a means, but always at the same time as an end, is Kant＇s instruction （Groundwork 4：429）. He thought that organ sale violates this imperative. Lectures on Ethics （27：346） shows that ＂... a man is not entitled to sell his limbs for money If a man does that, he turns himself into a thing, and then anyone may treat him as they please, because he has thrown his person away....＂ This paper explains Kant＇s reasons against commerce in organs, drawing on his views on prostitution, and the moral impermissibility of sexual use within this context, a case which he himself compares to the selling of one＇s body part（s）. Can choosing to donate one＇s kidney be morally permissible？ If we take Kant＇s views at face value, it would follow that organ donation is on a par with morality only if it takes place in a context where people have gained rights over each other＇s persons （for example, in a marital context）. In this context, however, a person has a right to her partner＇s kidney should she happen to need it, which can open the path to bodily violation. Moreover, this view severely restricts the permissibility of organ donation. In this paper, I argue that a closer examination of Kant＇s views on what is involved in the idea of respecting humanity could reveal that organ donation does not violate the categorical imperative. In fact, it could be said to follow from such an imperative that we actually have a duty to organ donation.
