BOHR International Journal of Operations Management Research and Practices https://journals.bohrpub.com/index.php/bijomrp <p><strong>BOHR International Journal of Operations Management Research and Practices (BIJOMRP)</strong> is an open-access peer-reviewed journal that publishes articles that contribute new results in all the areas of Operations Management Research and Practices. Authors are solicited to contribute to the journal by submitting articles that illustrate research results, projects, surveying works, and industrial experiences that describe significant advances in this area.</p> en-US <p>Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a> that allows others to share the work with an acknowledgment of the work’s authorship and initial publication in this journal.</p> editor@bohrpub.com (Tholkaapiyan) ijomrp@bohrpub.com (Aswini) Fri, 19 Jan 2024 00:00:00 +0000 OJS 3.3.0.11 http://blogs.law.harvard.edu/tech/rss 60 Application of tabu search, TS, to solve a flow shop scheduling problem with changeover times in operations: A case study https://journals.bohrpub.com/index.php/bijomrp/article/view/476 <p>Flow Shop Scheduling (FSS) Problems are NP-hard combinatorial optimization problems. It is quite difficult to achieve an optimal solution for FSS problems with mathematical modelling approaches because of its NP-hard structure. Tabu search (TS), a mega-heuristic algorithm, plays a major role in searching for near-optimal solutions for NP-hard optimization problems. This paper develops a TS model for solving a FSS problem with the objective to reduce total weighted tardiness time, and constraint on changeover time in operations. The performance of the TS model is compared with that of traditional EDD heuristics, being used. The result shows that the objective value has been reduced by 43%, from 215.95 to 123.07 (h). It indicates that the TS model is a good approach for FSS problems.</p> Phong Nguyen Nhu, Thuy Nhi Nguyen Thi Copyright (c) 2024 BOHR International Journal of Operations Management Research and Practices https://creativecommons.org/licenses/by/4.0 https://journals.bohrpub.com/index.php/bijomrp/article/view/476 Fri, 05 Jan 2024 00:00:00 +0000 Applying fuzzy theory to develop linguistic control charts The pLCC model https://journals.bohrpub.com/index.php/bijomrp/article/view/651 <p>This paper studies an approach to use fuzzy set theory and possibility theory to construct control charts – a very important on-line process control tool used in quality control. The control chart is constructed based on linguistic data. The model aims to control the process simply and effectively. The quality characteristics are modeled by fuzzy variable. The status of quality characteristics is modeled by triangle fuzzy number. Fuzzy arithmetic is used to calculate the control chart’s center line. The control chart’s control limits are constructed according to Shewhart’s principle. The fuzzy variable’s standard deviation is calculated by a model developed by Kauffman and Gupta.</p> Phong Nguyen Nhu, Tu Anh Nguyen Nhu Copyright (c) 2024 BOHR International Journal of Operations Management Research and Practices https://journals.bohrpub.com/index.php/bijomrp/article/view/651 Fri, 12 Jan 2024 00:00:00 +0000