نتایج جستجو برای: tandem queue
تعداد نتایج: 67395 فیلتر نتایج به سال:
To deal with the conflicts between left-turn and through traffic streams and increase the discharge capacity, this paper addresses the pre-signal which is implemented at a signalized intersection. Such an intersection with pre-signal is termed as a tandem intersection. For the tandem intersection, phase swap sorting strategy is deemed as the most effective phasing scheme in view of some exclusi...
In this paper, a meta-heuristic method, the Bat Algorithm, based on the echolocation behavior of bats is used to determine the optimum service rate of a queue problem. A finite buffer M/M/1 queue with N policy, multiple working vacations and Bernoulli schedule vacation interruption is considered. Under the two customers' impatient situations, balking and reneging, the...
This paper reports a study on a single server queue with bulk arrival and bulk service patterns wherein the incoming traffic depends on the state of the server which may be in operating or breakdown state. The repair of the breakdown server is performed in two phases. The operating duration of server, repair duration of both phases of repairing as well as job's inter-arrival times and service t...
Drivers in urban neighborhoods who patrol streets, seeking inexpensive on-street parking create a significant fraction of measured traffic congestion. The pool of drivers patrolling at any time can be modeled as a queue, where ‘queue service’ is the act of parking in a recently vacated parking space and queue discipline is SIRO – Service In Random Order. We develop a queueing model of such driv...
Waiting in long queue is undesirable due to which in some practical situations customers become impatient and leave the system. In such cases providing additional servers can reduce long queue. This investigation deals with multi-server queueing system with additional servers and discouragement. The customers arrive in poisson fashion and are served exponentially by a pool of permanent and addi...
dna typing is a new method with important applications in forensic medicine. in the present study, we evaluated application of dna typing in iran. loci hum lpl, hum tpox, hum f13, hum vw 31a, hum th01 and hum fes/fps of dna short tandem repeats were studied. to determine sensitivity of the test, 85 mother-child couples (1020 chromosomes) that were referred to dna section of legal medicine organ...
In this paper, a new blocked tandem queueing model is given and analysed. The arrival process to Poisson with parameter λ. There one service unit at the first stage of system, time exponentially distributed $μ_1$ parameter. are two parallel units second stage, these parameters $μ_2$ $μ_3$. No queue allowed system. Upon completing customer proceeds if least available. If both busy, blocks which ...
In this paper, an M/M/1 queue with working vacation and vacation interruption is investigated. The server is supposed to take a working vacation whenever the system becomes empty and if there are at least N customers waiting in the system at a service completion instant, vacation interruption happens and the server resumes a normal working period. A matrix geometric approach is employed to obta...
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