This paper describes the development and optimization plans for the China Railway Express(CR Express).As a new type of international land transport organization,CR Express has emerged with the continuous expansion of ...This paper describes the development and optimization plans for the China Railway Express(CR Express).As a new type of international land transport organization,CR Express has emerged with the continuous expansion of China toward European investment and trade,and in particular,has expanded with the continuous progress of the One Belt and One Road(OBOR)initiative.In addition to improving the service quality of CR Express,the operating costs must be reduced for developing“smart railways”that serve“smart cities”.We propose a dualobjective-based function mathematical optimization model;the satisfaction of the cargo owner is considered,and the timeliness,transportation capacity,and goods category constraints of CR Express transportation are designed.Moreover,we present the normalized equivalent method of the two-objective function of the model.Finally,a case study is conducted against the background of certain trains in the western corridor of CR Express to validate the effectiveness of the model and research methods proposed in this study.展开更多
The distributed denial of service (DDoS) attack is one of the dangers in intrusion modes. It's difficult to defense and can cause serious damage to the system. Based on a careful study of the attack principles and...The distributed denial of service (DDoS) attack is one of the dangers in intrusion modes. It's difficult to defense and can cause serious damage to the system. Based on a careful study of the attack principles and characteristics, an object-oriented formalized description is presented, which contains a three-level framework and offers full specifications of all kinds of DDoS modes and their features and the relations between one another. Its greatest merit lies in that it contributes to analyzing, checking and judging DDoS. Now this formalized description has been used in a special IDS and it works very effectively.(展开更多
1 History and outlook of the development of supply chain finance The development of supply chain finance goes through four periods,First,supply chain finance 1.0 Version“1+N”mode,offline dominated by banks based on ...1 History and outlook of the development of supply chain finance The development of supply chain finance goes through four periods,First,supply chain finance 1.0 Version“1+N”mode,offline dominated by banks based on the credit support of the core enterprise“1”in the supply chain finance services for its upstream and downstream enterprises“N”;With the development of Internet technology,the 2.0 Version of supply chain finance came into being.The 2.0 Version is the online version of the“1+N”mode,which connects the supply chain through technical means.Upstream and downstream core companies,banks and other capital providers,logistics service providers,etc.,achieve online business,logistics,capital flow and information flow in the supply chain to supply in time.The enterprises control the risks of financing loans.展开更多
As an important project for closer infrastructure and trade connectivity between China and countries along the Belt and Road,the China Railway Express (CRE) has become a highlight of Belt and Road cooperation.Since it...As an important project for closer infrastructure and trade connectivity between China and countries along the Belt and Road,the China Railway Express (CRE) has become a highlight of Belt and Road cooperation.Since its debut nine years ago,its number of destinations and services have grown rapidly.By the end of 2019,it had connected 62 Chinese cities with over 110 cities in Eurasia.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.62102032)the R&D Program of Beijing Municipal Education Commission(Grant No.KM202211417010).
文摘This paper describes the development and optimization plans for the China Railway Express(CR Express).As a new type of international land transport organization,CR Express has emerged with the continuous expansion of China toward European investment and trade,and in particular,has expanded with the continuous progress of the One Belt and One Road(OBOR)initiative.In addition to improving the service quality of CR Express,the operating costs must be reduced for developing“smart railways”that serve“smart cities”.We propose a dualobjective-based function mathematical optimization model;the satisfaction of the cargo owner is considered,and the timeliness,transportation capacity,and goods category constraints of CR Express transportation are designed.Moreover,we present the normalized equivalent method of the two-objective function of the model.Finally,a case study is conducted against the background of certain trains in the western corridor of CR Express to validate the effectiveness of the model and research methods proposed in this study.
文摘The distributed denial of service (DDoS) attack is one of the dangers in intrusion modes. It's difficult to defense and can cause serious damage to the system. Based on a careful study of the attack principles and characteristics, an object-oriented formalized description is presented, which contains a three-level framework and offers full specifications of all kinds of DDoS modes and their features and the relations between one another. Its greatest merit lies in that it contributes to analyzing, checking and judging DDoS. Now this formalized description has been used in a special IDS and it works very effectively.(
文摘1 History and outlook of the development of supply chain finance The development of supply chain finance goes through four periods,First,supply chain finance 1.0 Version“1+N”mode,offline dominated by banks based on the credit support of the core enterprise“1”in the supply chain finance services for its upstream and downstream enterprises“N”;With the development of Internet technology,the 2.0 Version of supply chain finance came into being.The 2.0 Version is the online version of the“1+N”mode,which connects the supply chain through technical means.Upstream and downstream core companies,banks and other capital providers,logistics service providers,etc.,achieve online business,logistics,capital flow and information flow in the supply chain to supply in time.The enterprises control the risks of financing loans.
文摘As an important project for closer infrastructure and trade connectivity between China and countries along the Belt and Road,the China Railway Express (CRE) has become a highlight of Belt and Road cooperation.Since its debut nine years ago,its number of destinations and services have grown rapidly.By the end of 2019,it had connected 62 Chinese cities with over 110 cities in Eurasia.
