近年来MaaS (Mobility as a service)理念兴起并得到广泛研究,同时智能交通体系开始朝着自主化方向发展。发展自主式MaaS系统离不开对系统多维架构映射关系的设计和研究。在此背景下,本文首先根据服务域的通用标准定义,具象化MaaS系统...近年来MaaS (Mobility as a service)理念兴起并得到广泛研究,同时智能交通体系开始朝着自主化方向发展。发展自主式MaaS系统离不开对系统多维架构映射关系的设计和研究。在此背景下,本文首先根据服务域的通用标准定义,具象化MaaS系统服务集、参与组分和功能域。在此基础上,构建包括功能架构、逻辑架构、物理架构在内的系统多维架构,并设计架构内部和架构之间的多维映射关系。最后根据下一代际技术发展的趋势、功能和特点,对比分析不同代际下自主式MaaS系统架构映射关系的差异。展开更多
The paper presents a framework for developing a variety of video transition effects. The framework is designed to deal with the problem of inefficiency for programmers to generate more and more diversified video trans...The paper presents a framework for developing a variety of video transition effects. The framework is designed to deal with the problem of inefficiency for programmers to generate more and more diversified video transition, which is caused by excessive coupling between the sub-modules of the system. So the framework is designed to be modular, flexible and extensible. Based on the analysis of common features of different effects, the implementation of video transition effect is divided into 4 sub-odules, each of which can be designed and developed independently. Furthermore, these sub-modules can be easily sub- stituted, modified and reused. We present a formal description of our framework, and give typical study cases to show the extensive utility of the framework.展开更多
Today,backbone networks deploy a large number of devices and links.This is mainly due to both redundancy purposes for network service reliability,and resource over-dimensioning for maintaining quality of service durin...Today,backbone networks deploy a large number of devices and links.This is mainly due to both redundancy purposes for network service reliability,and resource over-dimensioning for maintaining quality of service during rush hours.Unfortunately,current routers do not have power management primitives,and have constant energy consumption independent of their actual workloads.How to implement a low power and multi-stage switch forwarding for IP lookup is a challenge in high-performance green routers design.A forwarding information base multi-stage mapping routing lookup architecture is presented,and the dynamic routing table mapping algorithm is designed to determine the optimal strides for building tree bitmap tries which lead the worst-case power consumption of the IP lookup engine to be minimized.Experimental results show that the application of reallife routing tables demonstrates that the proposed method could reduce power consumption of routing lookup by 30%.展开更多
文摘近年来MaaS (Mobility as a service)理念兴起并得到广泛研究,同时智能交通体系开始朝着自主化方向发展。发展自主式MaaS系统离不开对系统多维架构映射关系的设计和研究。在此背景下,本文首先根据服务域的通用标准定义,具象化MaaS系统服务集、参与组分和功能域。在此基础上,构建包括功能架构、逻辑架构、物理架构在内的系统多维架构,并设计架构内部和架构之间的多维映射关系。最后根据下一代际技术发展的趋势、功能和特点,对比分析不同代际下自主式MaaS系统架构映射关系的差异。
文摘The paper presents a framework for developing a variety of video transition effects. The framework is designed to deal with the problem of inefficiency for programmers to generate more and more diversified video transition, which is caused by excessive coupling between the sub-modules of the system. So the framework is designed to be modular, flexible and extensible. Based on the analysis of common features of different effects, the implementation of video transition effect is divided into 4 sub-odules, each of which can be designed and developed independently. Furthermore, these sub-modules can be easily sub- stituted, modified and reused. We present a formal description of our framework, and give typical study cases to show the extensive utility of the framework.
基金Supported by the National High Technology Research and Development Programme of China(No.2008AA01A323,2009AA01A334)the National Basic Research Program of China(No.2007CB307102)
文摘Today,backbone networks deploy a large number of devices and links.This is mainly due to both redundancy purposes for network service reliability,and resource over-dimensioning for maintaining quality of service during rush hours.Unfortunately,current routers do not have power management primitives,and have constant energy consumption independent of their actual workloads.How to implement a low power and multi-stage switch forwarding for IP lookup is a challenge in high-performance green routers design.A forwarding information base multi-stage mapping routing lookup architecture is presented,and the dynamic routing table mapping algorithm is designed to determine the optimal strides for building tree bitmap tries which lead the worst-case power consumption of the IP lookup engine to be minimized.Experimental results show that the application of reallife routing tables demonstrates that the proposed method could reduce power consumption of routing lookup by 30%.
