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Optimal Allocation of Effort to Software Maintenance : A Queuing Theory Approach

Kulkarni, V. G.; Kumar, Subodha; Mookerjee, Vijay; … - 2011

We develop variations of the M|G|1 queue to model the process of software maintenance within organizations and use these models to compute the optimal allocation of resources to software maintenance. User requests are assumed to arrive following a Poisson process and a binomial distribution is...

Persistent link: https://www.econbiz.de/10014047880

Minimizing Makespan in Flowshops with Pallet Requirements : Computational Complexity

Wang, M. W. - 2010

We establish the computational complexity of the problem of minimizing makespan in a flowshop, where each jobs requires a pallet the entire time, from the start of its first operation until the completion of the last operation. We prove that the problem is NP-hard in the strong sense for m =2...

Persistent link: https://www.econbiz.de/10013152472

Scheduling Methods for a Class of Flexible Manufacturing Systems

Sriskandarajah, Chelliah - 2020

Scheduling methods are proposed for a class of flexible manufacturing systems consisting of machine centers served by a … proposed for the minimum conveyor speed (S = 1) for a particular system in the class under consideration. Scheduling algorithms …

Persistent link: https://www.econbiz.de/10012834910

Feedback Production Planning in a Stochastic Two-Machine Flowshop : Asymptotic Analysis and Computational Results

Sethi, Suresh - 2020

This paper presents an asymptotic analysis of hierarchical production planning in a manufacturing system with two tandem machines that are subject to breakdown and repair. Since the number of parts in the buffer between the two machines needs to be non-negative, the problem is inherently a state...

Persistent link: https://www.econbiz.de/10012835287

Optimal Production Control in Pull Flow Lines with Multiple Part Types : A Summary

Yang, Jun - 2020

The optimal production control problem of deterministic pull flow lines with multiple part types is considered in this paper. The last machine is assumed to be the bottleneck. The objective is to minimize the total inventory and backlog costs over time. We give an optimal production policy and...

Persistent link: https://www.econbiz.de/10012835295

Parallel-Machine Scheduling With Machine-Dependent Maintenance Periodic Recycles

Li, Guo - 2020

on the whole productivity. In this paper, we consider a parallel-machine scheduling problem where each machine is subject …

Persistent link: https://www.econbiz.de/10012838273

Efficient Algorithms for Flexible Job Shop Scheduling with Parallel Machines

Kubiak, Wieslaw - 2020

Job shop scheduling with a bank of machines in parallel is important from both theoretical and practical points of … review. Here we focus on a flexible job shop scheduling problem of minimizing the makespan in a two-center job shop, where …

Persistent link: https://www.econbiz.de/10012838656

Flow Shop Scheduling With Jobs Arriving at Different Times

Li, Guo - 2020

Flow shop scheduling is common in modern lean production systems. In practice, jobs in flow shops can arrive at … irregular times. However, scheduling that considers such irregularity has not been adequately investigated in the literature. In … this paper, we examine the scheduling of n-jobs in an m-machine permutation flow shop with an unlimited intermediate …

Persistent link: https://www.econbiz.de/10012838801

Optimal Production Planning in a Stochastic Manufacturing System with Long-Run Average Cost

Sethi, Suresh - 2019

This paper is concerned with the optimal production planning in a dynamic stochastic manufacturing system consisting of a single machine that is failure prone and facing a constant demand. The objective is to choose the rate of production over time in order to minimize the long-run average cost...

Persistent link: https://www.econbiz.de/10012906229

Optimal Production Planning in Pull Flow Lines with Multiple Products

Yan, Houmin - 2008

The paper is concerned with the problem of optimal production planning in deterministic pull flow lines with multiple products. The objective is to specify the production policy that minimizes the total inventory and backlog costs overtime. Assuming constant product demands and non-decreasing...

Persistent link: https://www.econbiz.de/10012772150