We propose a new architecture of truck-based mobile energy couriers(MEC)for power distribution networks with high penetration of renewable energy sources(RES).Each MEC is a truck equipped with high-density inverters,c...We propose a new architecture of truck-based mobile energy couriers(MEC)for power distribution networks with high penetration of renewable energy sources(RES).Each MEC is a truck equipped with high-density inverters,converters,capacitor banks,and energy storage devices.The MEC platform can improve the flexibility,resilience,and RES hosting capability of a distribution grid through spatial-temporal energy reallocation based on the stochastic behaviors of RES and loads.The employment of MEC necessitates the development of complex scheduling and control schemes that can adaptively cope with the dynamic natures of both the power grid and the transportation network.The problem is formulated as a non-convex optimization problem to minimize the total generation cost,subject to the various constraints imposed by conventional and renewable energy sources,energy storage,and transportation networks,etc.The problem is solved by combining optimal power flow(OPF)with deep reinforcement learning(DRL)under the framework of deep deterministic policy gradient(DDPG).Simulation results demonstrate that the proposed MEC platform with DDPG can achieve significant cost reduction compared to conventional systems with static energy storage.展开更多
In the busy streets of Lusaka,Zambia’s capital,Joel Kangwa fired up his red Haojue.It is not just a motorbike.It is the reason he wakes up each morning with purpose.He kicked the starter and the engine responded with...In the busy streets of Lusaka,Zambia’s capital,Joel Kangwa fired up his red Haojue.It is not just a motorbike.It is the reason he wakes up each morning with purpose.He kicked the starter and the engine responded with a low growl.“Working as a courier on my motorbike is a dream come true.I now earn more than double what I used to make as a salesman in the industrial area,”he said.展开更多
Recently,e-commerce develops rapidly,advancing express delivery services,but the whole logistics are incomplete,especially for the issue of ＂the last one-kilometer ＂.For example,the research reviewed status quo and ...Recently,e-commerce develops rapidly,advancing express delivery services,but the whole logistics are incomplete,especially for the issue of ＂the last one-kilometer ＂.For example,the research reviewed status quo and problems of Tianjin Agricultural University and made improvements on campus delivery services to explore the status quo and resolving ways,exploit the hint business opportunity in campus express model,improve efficiency and service attitude and get doublewin of both parties involved.展开更多
With the growth of the online market,demand for logistics and courier cargo is increasing rapidly.Accordingly,in the case of urban areas,road congestion and environmental problems due to cargo vehicles are mainly occu...With the growth of the online market,demand for logistics and courier cargo is increasing rapidly.Accordingly,in the case of urban areas,road congestion and environmental problems due to cargo vehicles are mainly occurring.The joint courier logistics system,a plan to solve this problem,aims to establish an efficient logistics transportation system by utilizing one joint logistics delivery terminal by several logistics and delivery companies.However,several courier companies use different types of courier invoices.Such a system has a problem of information data transmission interruption.Therefore,the data processing process was systematically analyzed,a practically feasible methodology was devised,and delivery invoice information processing standards were established for this.In addition,the importance of this paper can be emphasized in terms of data processing in the logistics sector,which is expected to grow rapidly in the future.The results of this study can be used as basic data for the implementation of the logistics joint delivery terminal system in the future.And it can be used as a basis for securing the operational reliability of the joint courier logistics system.展开更多
Expanding Courier Industry China s courier sector posted steady business expansion in June, official data showed. The country s courier firms delivered 5.3 billion parcels in June, up 25.3 percent year on year, accord...Expanding Courier Industry China s courier sector posted steady business expansion in June, official data showed. The country s courier firms delivered 5.3 billion parcels in June, up 25.3 percent year on year, according to the State Post Bureau.展开更多
The timing is almost poetic.As lychees ripened in orchards this season,the online drama Lychee in Chang'an fickered onto screens-reawakening an ancient tale of obsession.The series resurrects Tang Dynasty(618-907)...The timing is almost poetic.As lychees ripened in orchards this season,the online drama Lychee in Chang'an fickered onto screens-reawakening an ancient tale of obsession.The series resurrects Tang Dynasty(618-907)couriers who thundered down imperial roads day and night,racing against time to deliver Guangdong's precious tropical fruit to the emperor's consort in Xi'an.For centuries。展开更多
On the basis of several practical applications in many countries, this article reviews the potential market scale of radio frequency identification （RFID） and its applications in global postal and courier services t...On the basis of several practical applications in many countries, this article reviews the potential market scale of radio frequency identification （RFID） and its applications in global postal and courier services through studies and analyses. It gives some suggestions and options in the development of RFID and its application in postal and courier services.展开更多
Relevance of the problem under research is due to the fragmentary character of the regulatory framework for concluding a surrogacy agreement both in Ukraine and foreign countries,which does not solve the full range of...Relevance of the problem under research is due to the fragmentary character of the regulatory framework for concluding a surrogacy agreement both in Ukraine and foreign countries,which does not solve the full range of problems that arise in law enforcement practice.Moreover,there is no clear regulation for the notarization of the surrogacy agreement.The study aims to analyze the existing legal regulation of theoretical and practical aspects of the conclusion of a surrogacy agreement and draw certain conclusions and scientific provisions on the notarization of the surrogacy agreement.The leading research methods used for a comprehensive examination of surrogacy and surrogacy agreement were the following:normative semantic method,general logical methods of cognition,comparative and formal legal methods,generalization,historical method,systemic method,and structural and functional method.The research results proved the need for the legislative regulation of surrogacy.If a notarial form of the surrogacy agreement is implemented,it can significantly reduce the criminal component in this service and the risk of adverse consequences for the parties.There must be a separate law on the regulation of surrogacy adopted in Ukraine,which also concerns all other types of assisted reproductive technologies.展开更多
文摘We propose a new architecture of truck-based mobile energy couriers(MEC)for power distribution networks with high penetration of renewable energy sources(RES).Each MEC is a truck equipped with high-density inverters,converters,capacitor banks,and energy storage devices.The MEC platform can improve the flexibility,resilience,and RES hosting capability of a distribution grid through spatial-temporal energy reallocation based on the stochastic behaviors of RES and loads.The employment of MEC necessitates the development of complex scheduling and control schemes that can adaptively cope with the dynamic natures of both the power grid and the transportation network.The problem is formulated as a non-convex optimization problem to minimize the total generation cost,subject to the various constraints imposed by conventional and renewable energy sources,energy storage,and transportation networks,etc.The problem is solved by combining optimal power flow(OPF)with deep reinforcement learning(DRL)under the framework of deep deterministic policy gradient(DDPG).Simulation results demonstrate that the proposed MEC platform with DDPG can achieve significant cost reduction compared to conventional systems with static energy storage.
文摘In the busy streets of Lusaka,Zambia’s capital,Joel Kangwa fired up his red Haojue.It is not just a motorbike.It is the reason he wakes up each morning with purpose.He kicked the starter and the engine responded with a low growl.“Working as a courier on my motorbike is a dream come true.I now earn more than double what I used to make as a salesman in the industrial area,”he said.
文摘Recently,e-commerce develops rapidly,advancing express delivery services,but the whole logistics are incomplete,especially for the issue of ＂the last one-kilometer ＂.For example,the research reviewed status quo and problems of Tianjin Agricultural University and made improvements on campus delivery services to explore the status quo and resolving ways,exploit the hint business opportunity in campus express model,improve efficiency and service attitude and get doublewin of both parties involved.
基金supported by a grant from R&D program of the Korea Evaluation Institute of Industrial Technology(20015047).
文摘With the growth of the online market,demand for logistics and courier cargo is increasing rapidly.Accordingly,in the case of urban areas,road congestion and environmental problems due to cargo vehicles are mainly occurring.The joint courier logistics system,a plan to solve this problem,aims to establish an efficient logistics transportation system by utilizing one joint logistics delivery terminal by several logistics and delivery companies.However,several courier companies use different types of courier invoices.Such a system has a problem of information data transmission interruption.Therefore,the data processing process was systematically analyzed,a practically feasible methodology was devised,and delivery invoice information processing standards were established for this.In addition,the importance of this paper can be emphasized in terms of data processing in the logistics sector,which is expected to grow rapidly in the future.The results of this study can be used as basic data for the implementation of the logistics joint delivery terminal system in the future.And it can be used as a basis for securing the operational reliability of the joint courier logistics system.
文摘Expanding Courier Industry China s courier sector posted steady business expansion in June, official data showed. The country s courier firms delivered 5.3 billion parcels in June, up 25.3 percent year on year, according to the State Post Bureau.
文摘The timing is almost poetic.As lychees ripened in orchards this season,the online drama Lychee in Chang'an fickered onto screens-reawakening an ancient tale of obsession.The series resurrects Tang Dynasty(618-907)couriers who thundered down imperial roads day and night,racing against time to deliver Guangdong's precious tropical fruit to the emperor's consort in Xi'an.For centuries。
文摘On the basis of several practical applications in many countries, this article reviews the potential market scale of radio frequency identification （RFID） and its applications in global postal and courier services through studies and analyses. It gives some suggestions and options in the development of RFID and its application in postal and courier services.
文摘Relevance of the problem under research is due to the fragmentary character of the regulatory framework for concluding a surrogacy agreement both in Ukraine and foreign countries,which does not solve the full range of problems that arise in law enforcement practice.Moreover,there is no clear regulation for the notarization of the surrogacy agreement.The study aims to analyze the existing legal regulation of theoretical and practical aspects of the conclusion of a surrogacy agreement and draw certain conclusions and scientific provisions on the notarization of the surrogacy agreement.The leading research methods used for a comprehensive examination of surrogacy and surrogacy agreement were the following:normative semantic method,general logical methods of cognition,comparative and formal legal methods,generalization,historical method,systemic method,and structural and functional method.The research results proved the need for the legislative regulation of surrogacy.If a notarial form of the surrogacy agreement is implemented,it can significantly reduce the criminal component in this service and the risk of adverse consequences for the parties.There must be a separate law on the regulation of surrogacy adopted in Ukraine,which also concerns all other types of assisted reproductive technologies.
