Two-stage queuing system with sampled parallel input queues/ Zweistufiges Wartesystem mit taktmäßig abgefertigten parallelen Eingangswarteschlangen

We consider the optimal control of two parallel servers in a two-stage tandem queuing system with two flexible servers. New jobs arrive at station 1, after which a series of two operations must be performed before they leave the system. Holding costs are incurred at rate h1 per unit time for each job at station 1 and at rate h2 per unit time for each job at station 2.The system is considered under two scenarios; the collaborative case and the noncollaborative case. In the prior, the servers can collaborate to work on the same job, whereas in the latter, each server can work on a unique job although they can work on separate jobs at the same station. We provide simple conditions under which it is optimal to allocate both servers to station 1 or 2 in the collaborative case. In the noncollaborative case, we show that the same condition as in the collaborative case guarantees the existence of an optimal policy that is exhaustive at station 1. However, the condition for exhaustive service at station 2 to be optimal does not carry over. This case is examined via a numerical study.

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Performance Analysis for a Two-stage Queuing System with Online Service

2020 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM) ◽

10.1109/ieem45057.2020.9309758 ◽

2020 ◽

Author(s):

Liying Zhang ◽

Li Xiao

Keyword(s):

Performance Analysis ◽

Queuing System ◽

Online Service ◽

Two Stage

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INVENTORY CONTROL IN A DECENTRALIZED TWO-STAGE MAKE-TO-STOCK QUEUING SYSTEM

IFAC Proceedings Volumes ◽

10.3182/20060517-3-fr-2903.00156 ◽

2006 ◽

Vol 39 (3) ◽

pp. 283-288 ◽

Cited By ~ 1

Author(s):

Yasemin Arda ◽

Jean-Claude Hennet

Keyword(s):

Inventory Control ◽

Queuing System ◽

Two Stage ◽

Make To Stock

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Two-stage self-seeding method for preparation of single crystals of poly(phenylene sulfide)

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100153816 ◽

1989 ◽

Vol 47 ◽

pp. 368-369

Author(s):

Sengshiu Chung ◽

Peggy Cebe

Keyword(s):

Single Crystals ◽

High Performance ◽

Dilute Solution ◽

Two Stage ◽

Annealing Behavior ◽

High Performance Polymers ◽

Seeding Method ◽

Phenylene Sulfide

We are studying the crystallization and annealing behavior of high performance polymers, like poly(p-pheny1ene sulfide) PPS, and poly-(etheretherketone), PEEK. Our purpose is to determine whether PPS, which is similar in many ways to PEEK, undergoes reorganization during annealing. In an effort to address the issue of reorganization, we are studying solution grown single crystals of PPS as model materials.Observation of solution grown PPS crystals has been reported. Even from dilute solution, embrionic spherulites and aggregates were formed. We observe that these morphologies result when solutions containing uncrystallized polymer are cooled. To obtain samples of uniform single crystals, we have used two-stage self seeding and solution replacement techniques.

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