An M/G/1 clearing queueing system with setup time and multiple vacations for an unreliable server

This paper studies an M/G/1 clearing queueing system with setup time and multiple vacations, in which all present customers in the system are served simultaneously and breakdowns may occur in busy or setup period. We investigate the stationary distribution of system size and the Laplace–Stieltjes transform of sojourn time. In addition, various performance measures are discussed, such as the mean system size at arbitrary time and the mean length of a vacation circle. Moreover, a cost analysis is carried out for this queueing system. Numerical results are presented to study the sensitivity of the system parameters on the expected cost function and system performances.     

WDM网双故障的共享子通路保护算法

研究了WDM网中双故障导致的多链路失效问题,提出了一种共享子通路保护算法。共享子通路保护为每条业务请求计算一条最短的工作路由,并为工作路由上每段子通路各计算两条共享风险链路组分离且代价最小的保护路由。仿真表明,共享子通路保护不仅能有效地保护双故障导致的多链路失效,而且能在资源利用率(阻塞率)和保护切换时间之间进行性能折衷。     

跨文化交际失败原因浅谈

跨文化交际 (interculturalcommunication)是指不同文化成员间的各种交际活动。由于这种交际活动既涉及不同的语言或同种语言的不同方言 ,又涉及到交际双方不同的思想认识以及对事物的不同理解与态度 ,因此在实际过程中 ,这种交际往往会因种种因素中断甚至失败。为使跨文化交际更有效 ,更直接 ,更顺利地达成 ,有必要对其种种失败原因进行探讨与剖析 ,从而作出相应对策     

跨文化交际中的语言故障及其处理

在跨文化交际中,在学习、掌握词汇的文化内涵差别、社会文化知识差异的同时,也应该注重学习、掌握词汇空缺和信息的增值与减损现象,更要注重学习、掌握不同的思维方法,遵循一定的交际原则,从而成功地实现有效交际。     

The analysis of unreliable M[X]/G/1 queuing system with loss,vacation and two delays of verification

This paper considers an M^[X]/G/1 queue with breakdowns, repair, Bernoulli vacation, two delays and geometric loss. In this paper, a special attention is given to the limiting distribution of system states. We obtain simplified expressions for the Probability Generating Functions (PGFs) of the joint distribution of server state and system size. Some performance measures were derived from the analysis of the steady state probabilities. PGF of a departure point system size distribution is developed. Particular cases of the studied system were investigated. The effect of system parameters on the main performance measures are illustrated and discussed.