小议IRG英语网语的文体特征

随着计算机和网络的不断发展和广泛应用,产生了一种新的语言变体--网络语言,简称网语(Netspeak),它已经得到了语言学界广泛的关注.文章主要从词汇、拼写、句法和语法等方面,对其中一种类型即IRC网语的文体特征进行初步的研究.     

Relay switched, scalable topology control for mobile robot networks based on motion synchronization

A mobile robot network is said to be easily scalable to any number of robots if its performance is kept almost fixed after these robots are added or some fail in the network. An interaction dynamics model based on motion synchronization is first established. Considering the mobility of mobile robot networks, we propose a relay switched, distributed topology control for the scalable network to drive newly added robots to the most suitable positions with more neighbors as well as self-heal the blank positions of failed robots, and give a metric of the topology structure for evaluating the performance of network topologies. Then, we prove the stability of motion synchronization with the individual control based on Lyapunov exponent. Finally, the results of simulations have demonstrated the validity of the proposed modeling and control methods.     

数字同步网优化改造方案

同步网为电信网内所有设备提供时钟及时间同步控制信号,从而使各节点设备的数字流实现正确有效的传送.分析了同步网的现状,结合甘肃电信数字同步网扩容改造工程,对数字同步网的时钟源建设、核心设备的时间同步以及网管系统建设提出了相应的改造方案,并对其中的关键技术进行了详细阐述.通过该方案的实施,能有效提高同步网的准确性和可靠性.     

“信息高速公路”与SONET／SDH网

本文对“国家信息基础设施”（ＮＩＩ）的目标、特点和实施ＮＩＩ的同步光纤网（ＳＯＮＥＴ／ＳＤＨ）进行讨论，并就发展中国的信息高速公路提出几点看法。     

SDH中准同步支路映射抖动的模拟计算及其结果

提出了模拟计算ＳＤＨ中准同步支路映射抖动的方法，给出了ＰＤＨ四次群信号映射抖动的模拟结果。