哈勃空间望远镜(Hubble Space Tele-scope,缩写 HST),自1990年4月25日由'发现者号'航天飞机投入太空以后,世人瞩目。各国天文学家视其为探索宇宙深处的空前利器,指望在天文观测方面开创一个黄金时代;美国公众则视其为空间科学...哈勃空间望远镜(Hubble Space Tele-scope,缩写 HST),自1990年4月25日由'发现者号'航天飞机投入太空以后,世人瞩目。各国天文学家视其为探索宇宙深处的空前利器,指望在天文观测方面开创一个黄金时代;美国公众则视其为空间科学中的头号耗资项目,期望所耗有所获。展开更多
An M/G/1 retrial queue with a first-come-first-served (FCFS) orbit,general retrial time,two-phase service and server breakdown is investigated in this paper.Customers are allowed to balkand renege at particular times....An M/G/1 retrial queue with a first-come-first-served (FCFS) orbit,general retrial time,two-phase service and server breakdown is investigated in this paper.Customers are allowed to balkand renege at particular times.Assume that the customers who find the server busy are queued inthe orbit in accordance with an FCFS discipline.All customers demand the first 'essential' service,whereas only some of them demand the second 'optional' service,and the second service is multi-optional.During the service,the server is subject to breakdown and repair.Assume that the retrialtime,the service time,and the repair time of the server are all arbitrarily distributed.By using thesupplementary variables method,the authors obtain the steady-state solutions for both queueing andreliability measures of interest.展开更多
基金supported by the National Natural Science Foundation of China under Grant No. 10871020
文摘An M/G/1 retrial queue with a first-come-first-served (FCFS) orbit,general retrial time,two-phase service and server breakdown is investigated in this paper.Customers are allowed to balkand renege at particular times.Assume that the customers who find the server busy are queued inthe orbit in accordance with an FCFS discipline.All customers demand the first 'essential' service,whereas only some of them demand the second 'optional' service,and the second service is multi-optional.During the service,the server is subject to breakdown and repair.Assume that the retrialtime,the service time,and the repair time of the server are all arbitrarily distributed.By using thesupplementary variables method,the authors obtain the steady-state solutions for both queueing andreliability measures of interest.
