Intelligent Information‐Centric Networking routing scheme under imprecise information

Information‐Centric Networking (ICN) has been accepted to overcome some weaknesses of the current Internet architecture, showing that “what is being exchanged” is more important than “who are exchanging information.” Given the inadequate considerations on Quality of Service (QoS) and energy saving in ICN routing, we propose in this paper a routing algorithm to enhance the two aspects. At first, on one hand, Cauchy distribution is used as a fuzzy model to evaluate users' QoS requirements, such as bandwidth, delay, and error rate; on the other hand, we formulate energy saving problem to evaluate the green quality of routing algorithm. Then, we design a link selection approach by considering QoS and energy saving, which belongs to a multi‐objective decision problem resolved by intelligent drops algorithm. Finally, we implement the proposed algorithm and compare it with the famous adaptive forwarding mechanism in terms of some significant metrics, and the experimental results reveal that the proposed algorithm is more efficient.     

西门子全集成自动化理念初探

系统阐述了全集成自动化理念的内涵，指出其特点在于统一的数据管理、统一的编程组态、统一的通讯以及无与伦比的开放性，其中采用WINCC与STEP7两个软件进行了说明，井提出全集成自动化应用将是今后自动化技术发展应用的方向。     

Optimal and self‐tuning fusion Kalman filters for discrete‐time stochastic singular systems

Based on the optimal fusion estimation algorithm weighted by scalars in the linear minimum variance sense, a distributed optimal fusion Kalman filter weighted by scalars is presented for discrete‐time stochastic singular systems with multiple sensors and correlated noises. A cross‐covariance matrix of filtering errors between any two sensors is derived. When the noise statistical information is unknown, a distributed identification approach is presented based on correlation functions and the weighted average method. Further, a distributed self‐tuning fusion filter is given, which includes two stage fusions where the first‐stage fusion is used to identify the noise covariance and the second‐stage fusion is used to obtain the fusion state filter. A simulation verifies the effectiveness of the proposed algorithm. Copyright © 2008 John Wiley & Sons, Ltd.     

防治水泥稳定碎石基层沥青路面裂缝的措施浅析

水泥稳定碎石基层沥青路面裂缝产生的原因复杂 ,但非荷载型裂缝更为主要。防治水泥稳定碎石基层沥青路面的裂缝应该从设计和施工两方面考虑 ,其中由结构、材料组成设计 ,以及施工工艺出发控制水泥稳定碎石基层本身的收缩也是一项重要措施。     

MPEG-2视频编码标准及CLM4400视频编码芯片简介

本文通过MPEG-2和MPEG-1在视频方面的比较，简略地介绍了MPEG-2视频标准，并附带介绍了C-CUBE公司的MPEG-2视频编码芯片CLM4400的功能和应用前景。     

FIDIC合同条件下的索赔

从FIDIC合同条件来讲,索赔是合同双方均等的权利,既可以是承包商向业主索赔,也可以是业主向承包商索赔。实际工作中,由于业主向承包商索赔的频率大大低于承包商向业主索赔的频率,习惯上业主总是着     

十年风雨十年情

十年，在人类历史的长河中只是短短的一瞬，而对于普通人的一生来说，十年却意味着青春的大半光阴。从20世纪的1995年到今天，十年如一日。他一步一个脚印，把美好的青春奉献给了日新月异的数据通信事业。他叫汤昕，现任乐清电信局数据维护支撑室主任。     

核电厂运行安全指标

本文着重介绍了 IAEA 所制定的核电厂运行安全指标,同时也介绍了美国所制定的类似指标。这些指标为定量地评估和比较各国核电厂运行安全提供了可靠的依据。