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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

"A branch-and-bound priority rule to minimize WIP and tardiness in job-shop problem.

Stithit, Wuttikorn. January 1991 (has links)
Thesis (M.S.)--Ohio University, August, 1991. / Title from PDF t.p.

Time continuity in discrete time models new approaches for production planning in process industries /

Suerie, Christopher. January 2005 (has links)
Thesis (doctoral)--Universität, Darmstadt. / Title from e-book title screen (viewed Oct. 16, 2007). Description based on print version record. Includes bibliographical references ([203]-216).

A study of scheduling operations with preemptive jobs and global system interruptions /

Cutler, Mark Christopher. January 1998 (has links)
Thesis (Ph. D.)--University of Washington, 1998. / Vita. Includes bibliographical references (leaves [103]-107).

Distributed resource scheduling : optimization models, equilibrium conditions, and incentive compatible mechanisms /

Kutanoglu, Erhan, January 1999 (has links)
Thesis (Ph. D.)--Lehigh University, 1999. / Includes vita. Includes bibliographical references (leaves 140-150).

Critical arc strategies for the reentrant job shop scheduling problem with setups

Zoghby, Jeriad Marcus. January 2002 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2002. / Vita. Includes bibliographical references. Available also from UMI Company.

New dominance orders for scheduling problems /

Stephenson, Paul A. January 1999 (has links)
Thesis (Ph.D.) -- McMaster University, 1999. / Includes bibliographical references (leaves 92-95). Also available via World Wide Web.

A model for loading and sequencing a flexible manufacturing cell

Cross, Fionnuala Mary 12 1900 (has links)
No description available.

Production scheduling for virtual cellular manufacturing systems /

Wong, Yat-sing. January 1999 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1999. / Includes bibliographical references.


This dissertation addresses the problem of scheduling a set of jobs under two different measures of performance: total tardiness and weighted number of tardy jobs. A new solution approach is presented for the single-machine tardiness problem. This views the problem as one of determining an optimal partition of the job set into early and tardy subsets. The scheme is validated by the development of necessary conditions for optimality. It is shown that if an optimal partition of the jobs into early and tardy subsets is given, the conditions are not only necessary but also sufficient. These results are used to derive a polynomial algorithm to generate a sequence that satisfies these conditions for any arbitrary partition. The implications of these results with respect to solving the tardiness problem, as well as some other related problems, are examined. Particular emphasis is placed on the impact of the partition approach as a device to enhance the performance of existing branch-and-bound procedures. The use of this approach to generate valid inequalities is also discussed. The problem of scheduling a single machine to minimize the weighted number of tardy jobs is examined in detail. A new branch-and-bound procedure is presented as well as the first extensive computational study of the problem. The proposed algorithm relies on lower bounds obtained by means of two relaxations of the problem for which efficient solution procedures exist. The merits of both bounding schemes are extensively tested. The computational results indicate that exact solutions for large problems can be obtained in just a few seconds of computer time. The efficacy of the approach as a heuristic method is also verified. Further, the computational experience provides insight into how various problem parameters affect the solution difficulty of particular problem instances. The multiple-processor version of the weighted number of tardy jobs model is also considered. The basic algorithmic framework for the single-machine problem is extended to obtain optimal preemptive schedules for parallel machines, which may be identical, uniform, or unrelated.

Developing an approach to help companies synchronise manufacturing

Rodrigues, Luis Henrique January 1994 (has links)
No description available.

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