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Title: Two-machine flowshop scheduling with conditional deteriorating second operations
Authors: Lin, BMT
Cheng, TCE 
Keywords: Flowshop scheduling
Waiting time
Issue Date: Mar-2006
Publisher: Blackwell Publishing
Source: International transactions in operational research, Mar. 2006, v. 13, no. 2, p. 91-98 How to cite?
Journal: International transactions in operational research 
Abstract: This paper considers a flowshop-scheduling problem with a waiting time constraint imposed to restrict the processing of the two operations of each job. If the second operation of a job cannot start within a specified waiting time after the completion of its first operation, then an extra processing time will be incurred for its second operation as a penalty. We first show that even a greatly restricted version of the problem is strongly NP-hard. We then develop an O(n²) algorithm to determine the makespan of a processing sequence of the jobs.
ISSN: 0969-6016
DOI: 10.1111/j.1475-3995.2006.00536.x
Rights: © 2006 The Authors. Journal compilation © 2006 International Federation of Operational Research Societies. Published by Blackwell Publishing. The definitive version is available at
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