简介:正AttheinvitationoftheUniversityofMississippi,FriendshipForceInternationalandtheNorthAmericaAssociationforInternationalExchanges,Mr.DuKening,DeputySecretary-GeneralofCAFIU,leadinga3-memberworkinggroupvisited
简介:WestudyanM/PH/1queuewithphasetypeworkingvacationandvacationinterruptionwherethevacationtimefollowsaphasetypedistribution.Theserverservesthecustomersatalowerrateinavacationperiod.Theservercomesbacktotheregularbusyperiodataservicecompletionwithoutcompletingthevacation.Suchpolicyiscalledvacationinterruption.Intermsofquasibirthanddeathprocessandmatrix-geometricsolutionmethod,weobtainthestationaryqueuelengthdistribution.Moreoverweobtaintheconditionalstochasticdecompositionstructuresofqueuelengthandwaitingtimewhentheservicetimedistributionintheregularbusyperiodisexponential.
简介:当奔驰新型C级轿跑车梅赛德斯出现在我面前时,我突然感到眼前一亮,这仿佛是我许久以前曾在梦里出现过的一个场景,我戴着墨镜,驾驶着她风驰电掣般行驶有高速公路上,我散落肩头的长发被劲风吹起,与我身着的节日晚装和车内豪华的装饰显现的宁静形成动静两相宜的温情浪漫,阳光、蓝天、白云、跑车还有我,在我的脑海里定格成一种温馨和谐的美……体验和谐与默契我慢慢走进这辆银白色的C级梅