One of the earliest results in flow shop scheduling theory is an algorithm given by Johnson’s [1] for scheduling jobs on two or three machines to minimize the total elapsed time whenever the processing times of jobs are random. The present paper is an attempt to develop a heuristic algorithm for two stages specially structured flow shop scheduling in which the processing times of the jobs a...

When the processing times of jobs are controllable, selected processing times affect both the manufacturing cost and the scheduling performance. A well known example for such a case that this paper specifically deals with is the turning operation on a CNC machine. Manufacturing cost of a turning operation is a nonlinear convex function of its processing time. In this paper, we deal with making ...

Quantum information processing was proposed and considered first by Feynman and Deutsch.(1,2) The requirements for a quantum processor are nowadays known as the DiVincenzo criteria.(3) Storing and processing quantum information requires: (i) scalable physical systems with well-defined qubits; which (ii) can be initialized; and have (iii) long lived quantum states in order to ensure long coheren...

For several years, the University of Poitiers has gradually realized the strategic value, inescapable and irreversible, of the use of information processing. The mass of information dealt with and the number of users relying daily on this support require a reliable and performing infrastructure. Although they were the object of a moderate interest at the start, the problems resulting from how t...

In this paper we develop a multi-objective model to optimally control the lead time of a multistage assembly system. The multistage assembly system is modeled as an open queueing network, whose service stations represent manufacturing or assembly operations. The arrival processes of the individual parts of the product, which should be assembled to each other in assembly stations, are assumed to...

workspace analysis is one of the most important issues in the robotic parallel manipulator design. ‎however, ‎the unidirectional constraint imposed by cables causes this analysis more challenging in the cabledriven redundant parallel manipulators. controllable workspace is one of the general workspace in the cabledriven redundant parallel manipulators due to the dependency on geometry parameter...