Since the launch of the economic reform and opening to the outside world, China has seen rapid growth in its export of mechanical and electrical products, with its export
Zhejiang’s machine-building industryhas made sustained efforts to increase itsexports through the combination ofindustry and trade. In the past decade,Zhejiang’s export volume of mechanicaland electrical products ha...Zhejiang’s machine-building industryhas made sustained efforts to increase itsexports through the combination ofindustry and trade. In the past decade,Zhejiang’s export volume of mechanicaland electrical products has increased over 10times, becoming the leading exports fromthe province. Zhejiang has thereforebecome an important province exportingmachinery in China.展开更多
Mechanical and electrical products are more and more widely used in all the fields of the society. With the increase in the degree of automation and miniaturization, the structure of many mechanical and electrical pro...Mechanical and electrical products are more and more widely used in all the fields of the society. With the increase in the degree of automation and miniaturization, the structure of many mechanical and electrical products is becoming more and more complex, and the conditions of the use are also increasingly harsh, and therefore more and more product reliability issues are arising, and the reliability technology is being paid more and more attention to. In this paper, aiming at the mechanical and electtical products, from the three aspects of reliability management, reliability design and analysis, and reliability test and evaluation, the reliability research is preliminary studied.展开更多
Electricity productivity is regarded as a major assessment indicator in the design of energy saving policies,given that China has entered a“New Normal”of economic development.In fact,enhancing electricity productivi...Electricity productivity is regarded as a major assessment indicator in the design of energy saving policies,given that China has entered a“New Normal”of economic development.In fact,enhancing electricity productivity in an all-round way,as is one of the binding indicators for energy and environmental issues,means that non-growth target of total electric energy consumption in the economic development is feasible.The Gini coefficient,Theil index,and Mean log deviation are utilized to measure regional differences in China’s electricity productivity from 1997 to 2016 in five regions,and conditionalβconvergence is empirically analyzed with the spatial Durbin model.The results show that:(1)China’s electricity productivity is improving,while the overall feature is that the eastern area has a higher efficiency than the western area.(2)The difference in electricity productivity is the smallest in the northeast and the largest in the northwest.Interregional difference plays an important role and is the main cause for the differences.(3)The electricity productivity in China exhibitsβconvergence,except for the northwest.The positive driving factor is urbanization level(0.0485%),and the negative driving factor is FDI(–0.0104%).Moreover,the urbanization rate(0.0669%),foreign direct investment(0.0960%),and the industrial structure(–0.0769%)have a spatial spillover effect on improving regional electricity productivity.Based on this conclusion,the study provides some recommendations for saving energy policy design in China’s power industry.展开更多
A laboratory-scale MFC （microbial fuel cell） was studied in order to determine the capacity and the efficiency of electricity production in microbial fuel cell system by using microorganisms. The medium used is an i...A laboratory-scale MFC （microbial fuel cell） was studied in order to determine the capacity and the efficiency of electricity production in microbial fuel cell system by using microorganisms. The medium used is an isolated culture ofSaccharomces cereviciae. A number of media has been evaluated to provide the best growth phase for Saccharomces cereviciae using optical density method with spectrophotometer at a wavelength of 550 nm. Nation 117, Lyntech, USA is used as proton exchange membrane and graphites with surface area 1.46 x 10.3 m2 are used as cathodes. Cathode chamber is fulfilled with a mixture of electrolyte compounds K3Fe（CN）6 and a buffer solution. Microbes that have been cultured are applied into anode chamber. A number of factors need to be controlled so that microbes can generate electrical energy efficiently, such as by measuring the degree of acidity and DO value in the anode compartment. In this research, the usage of riboflavin as a mediator is also investigated, while the usage of riboflavin increase production efficiency 53.90% compare to MFC without riboflavin as a mediator.展开更多
文摘Since the launch of the economic reform and opening to the outside world, China has seen rapid growth in its export of mechanical and electrical products, with its export
文摘Zhejiang’s machine-building industryhas made sustained efforts to increase itsexports through the combination ofindustry and trade. In the past decade,Zhejiang’s export volume of mechanicaland electrical products has increased over 10times, becoming the leading exports fromthe province. Zhejiang has thereforebecome an important province exportingmachinery in China.
文摘Mechanical and electrical products are more and more widely used in all the fields of the society. With the increase in the degree of automation and miniaturization, the structure of many mechanical and electrical products is becoming more and more complex, and the conditions of the use are also increasingly harsh, and therefore more and more product reliability issues are arising, and the reliability technology is being paid more and more attention to. In this paper, aiming at the mechanical and electtical products, from the three aspects of reliability management, reliability design and analysis, and reliability test and evaluation, the reliability research is preliminary studied.
基金supported by Funds for the National Natural Science Foundation of China Youth Project(Grant Nos.71103120&51507099)Shanghai Social Science Planning General Project(Grant No.2018BGl019).
文摘Electricity productivity is regarded as a major assessment indicator in the design of energy saving policies,given that China has entered a“New Normal”of economic development.In fact,enhancing electricity productivity in an all-round way,as is one of the binding indicators for energy and environmental issues,means that non-growth target of total electric energy consumption in the economic development is feasible.The Gini coefficient,Theil index,and Mean log deviation are utilized to measure regional differences in China’s electricity productivity from 1997 to 2016 in five regions,and conditionalβconvergence is empirically analyzed with the spatial Durbin model.The results show that:(1)China’s electricity productivity is improving,while the overall feature is that the eastern area has a higher efficiency than the western area.(2)The difference in electricity productivity is the smallest in the northeast and the largest in the northwest.Interregional difference plays an important role and is the main cause for the differences.(3)The electricity productivity in China exhibitsβconvergence,except for the northwest.The positive driving factor is urbanization level(0.0485%),and the negative driving factor is FDI(–0.0104%).Moreover,the urbanization rate(0.0669%),foreign direct investment(0.0960%),and the industrial structure(–0.0769%)have a spatial spillover effect on improving regional electricity productivity.Based on this conclusion,the study provides some recommendations for saving energy policy design in China’s power industry.
文摘A laboratory-scale MFC （microbial fuel cell） was studied in order to determine the capacity and the efficiency of electricity production in microbial fuel cell system by using microorganisms. The medium used is an isolated culture ofSaccharomces cereviciae. A number of media has been evaluated to provide the best growth phase for Saccharomces cereviciae using optical density method with spectrophotometer at a wavelength of 550 nm. Nation 117, Lyntech, USA is used as proton exchange membrane and graphites with surface area 1.46 x 10.3 m2 are used as cathodes. Cathode chamber is fulfilled with a mixture of electrolyte compounds K3Fe（CN）6 and a buffer solution. Microbes that have been cultured are applied into anode chamber. A number of factors need to be controlled so that microbes can generate electrical energy efficiently, such as by measuring the degree of acidity and DO value in the anode compartment. In this research, the usage of riboflavin as a mediator is also investigated, while the usage of riboflavin increase production efficiency 53.90% compare to MFC without riboflavin as a mediator.
