Container virtual technology aims to provide program independence and resource sharing.The container enables flexible cloud service.Compared with traditional virtualization,traditional virtual machines have difficulty...Container virtual technology aims to provide program independence and resource sharing.The container enables flexible cloud service.Compared with traditional virtualization,traditional virtual machines have difficulty in resource and expense requirements.The container technology has the advantages of smaller size,faster migration,lower resource overhead,and higher utilization.Within container-based cloud environment,services can adopt multi-target nodes.This paper reports research results to improve the traditional trust model with consideration of cooperation effects.Cooperation trust means that in a container-based cloud environment,services can be divided into multiple containers for different container nodes.When multiple target nodes work for one service at the same time,these nodes are in a cooperation state.When multi-target nodes cooperate to complete the service,the target nodes evaluate each other.The calculation of cooperation trust evaluation is used to update the degree of comprehensive trust.Experimental simulation results show that the cooperation trust evaluation can help solving the trust problem in the container-based cloud environment and can improve the success rate of following cooperation.展开更多
为解决当前主流应用系统在持续集成、持续交付,以及资源弹性伸缩需求方面所存在的诸多问题,并满足其支付系统的高事务处理能力的业务需求,需构建一套CaaS(Container as a Service)管理平台,以实现应用系统快速迭代、敏捷交付,以及降低...为解决当前主流应用系统在持续集成、持续交付,以及资源弹性伸缩需求方面所存在的诸多问题,并满足其支付系统的高事务处理能力的业务需求,需构建一套CaaS(Container as a Service)管理平台,以实现应用系统快速迭代、敏捷交付,以及降低运维成本。通过在生产环境构建基于容器的CaaS管理平台,为采用容器方式部署的业务应用系统提供发布、运行、管理等支持。同时在开发测试环境支撑容器化应用运行管理,并构建DevOps开发测试一体化流程。旨在为有敏捷开发、快速部署、弹性伸缩需求的应用系统提供一体化服务。展开更多
This study analyzes the effect of ship size on the liner service configuration by establishing an economic model. The service configuration is characterized by the distance of service and the number of calling ports. ...This study analyzes the effect of ship size on the liner service configuration by establishing an economic model. The service configuration is characterized by the distance of service and the number of calling ports. A study ease is presented for illustration. At last such a conclusion is drawn that given a fixed profit, the ship size will change with the extension of service in the same direction, while the change rate of ship size is a little higher than that of the extension of service.展开更多
This paper empirically evaluates container terminal service attributes. The methodology proposed focuses on statistical control, Based on the concept of service segmentation, the authors employed control charts to cla...This paper empirically evaluates container terminal service attributes. The methodology proposed focuses on statistical control, Based on the concept of service segmentation, the authors employed control charts to classify container terminal services. The purpose of control charts is to allow simple detection of events that are indicative of actual process change. This simple decision can be difficult where the process characteristic is continuously varying, the control chart provides statistically objective criteria of change. When change is detected and considered good its cause should be identified and possibly become the new way of working, where the change is bad then its cause should be identified and eliminated. Both theoretical and practical implications of the research findings are discussed in this paper.展开更多
桌面即服务(Desktop as a Service,DaaS)是一种新型云计算服务,把计算、存储能力放置在自治、异构的云计算服务器端,为广大客户提供按需分配的虚拟桌面服务。该文提出基于Docker容器的桌面即服务(DaaS)虚拟化管理系统架构设计,专注于简...桌面即服务(Desktop as a Service,DaaS)是一种新型云计算服务,把计算、存储能力放置在自治、异构的云计算服务器端,为广大客户提供按需分配的虚拟桌面服务。该文提出基于Docker容器的桌面即服务(DaaS)虚拟化管理系统架构设计,专注于简单、快速地实现虚拟桌面功能,包括虚拟桌面状态管理、生命周期管理、连接管理、分配管理等等。该系统利用Docker容器技术一致的运行环境、轻易的迁移服务的特点,降低了服务器硬件要求和软件配置之间耦合度,实现秒级启动虚拟化管理系统,比使用其他解决方案更加灵活、高效。展开更多
The pressure vessel of 200 MW low temperature nuclear heating reactor (LTNHR 200) is the main part of primary pressure boundary and its reasonable and reliable structural design is the key point to assure the safe op...The pressure vessel of 200 MW low temperature nuclear heating reactor (LTNHR 200) is the main part of primary pressure boundary and its reasonable and reliable structural design is the key point to assure the safe operation of LTNHR 200. The double shell pressure vessels were designed. LTNHR 200 pressure vessel meets the condition of Leak Before Break and has a relatively low failure probability. Metal containment (outer pressure vessel) has the similar features to LTNHR 200 pressure vessel. There exists no LOCA and core melting with the double vessel. The in service inspection of the pressure vessel can be simplified greatly because of the safety and structural features of the reactor.展开更多
基金This research work was supported by the National Natural Science Foundation of China(Grant No.61762031)Guangxi Key Research and Development Plan(No.2017AB51024)Guangxi key Laboratory of Embedded Technology and Intelligent System,Guangxi Fundamental Laboratory for Embedded Technology and Intelligent Systems.
文摘Container virtual technology aims to provide program independence and resource sharing.The container enables flexible cloud service.Compared with traditional virtualization,traditional virtual machines have difficulty in resource and expense requirements.The container technology has the advantages of smaller size,faster migration,lower resource overhead,and higher utilization.Within container-based cloud environment,services can adopt multi-target nodes.This paper reports research results to improve the traditional trust model with consideration of cooperation effects.Cooperation trust means that in a container-based cloud environment,services can be divided into multiple containers for different container nodes.When multiple target nodes work for one service at the same time,these nodes are in a cooperation state.When multi-target nodes cooperate to complete the service,the target nodes evaluate each other.The calculation of cooperation trust evaluation is used to update the degree of comprehensive trust.Experimental simulation results show that the cooperation trust evaluation can help solving the trust problem in the container-based cloud environment and can improve the success rate of following cooperation.
文摘为解决当前主流应用系统在持续集成、持续交付,以及资源弹性伸缩需求方面所存在的诸多问题,并满足其支付系统的高事务处理能力的业务需求,需构建一套CaaS(Container as a Service)管理平台,以实现应用系统快速迭代、敏捷交付,以及降低运维成本。通过在生产环境构建基于容器的CaaS管理平台,为采用容器方式部署的业务应用系统提供发布、运行、管理等支持。同时在开发测试环境支撑容器化应用运行管理,并构建DevOps开发测试一体化流程。旨在为有敏捷开发、快速部署、弹性伸缩需求的应用系统提供一体化服务。
基金The National Natural Science Foundation of China (40635026)
文摘This study analyzes the effect of ship size on the liner service configuration by establishing an economic model. The service configuration is characterized by the distance of service and the number of calling ports. A study ease is presented for illustration. At last such a conclusion is drawn that given a fixed profit, the ship size will change with the extension of service in the same direction, while the change rate of ship size is a little higher than that of the extension of service.
文摘This paper empirically evaluates container terminal service attributes. The methodology proposed focuses on statistical control, Based on the concept of service segmentation, the authors employed control charts to classify container terminal services. The purpose of control charts is to allow simple detection of events that are indicative of actual process change. This simple decision can be difficult where the process characteristic is continuously varying, the control chart provides statistically objective criteria of change. When change is detected and considered good its cause should be identified and possibly become the new way of working, where the change is bad then its cause should be identified and eliminated. Both theoretical and practical implications of the research findings are discussed in this paper.
文摘桌面即服务(Desktop as a Service,DaaS)是一种新型云计算服务,把计算、存储能力放置在自治、异构的云计算服务器端,为广大客户提供按需分配的虚拟桌面服务。该文提出基于Docker容器的桌面即服务(DaaS)虚拟化管理系统架构设计,专注于简单、快速地实现虚拟桌面功能,包括虚拟桌面状态管理、生命周期管理、连接管理、分配管理等等。该系统利用Docker容器技术一致的运行环境、轻易的迁移服务的特点,降低了服务器硬件要求和软件配置之间耦合度,实现秒级启动虚拟化管理系统,比使用其他解决方案更加灵活、高效。
文摘The pressure vessel of 200 MW low temperature nuclear heating reactor (LTNHR 200) is the main part of primary pressure boundary and its reasonable and reliable structural design is the key point to assure the safe operation of LTNHR 200. The double shell pressure vessels were designed. LTNHR 200 pressure vessel meets the condition of Leak Before Break and has a relatively low failure probability. Metal containment (outer pressure vessel) has the similar features to LTNHR 200 pressure vessel. There exists no LOCA and core melting with the double vessel. The in service inspection of the pressure vessel can be simplified greatly because of the safety and structural features of the reactor.
