IE-OPIM Joint Graduate Seminar: Meltem Denizel (Özyeğin University)
“Lot Sizing for Spare Parts and Refurbished Cores in a Remanufacturing Environment”
Date: Wednesday, April 27, 2016
Time: 13:40 – 14:30
Location: FENS G032
Abstract: Legislative and/or market forces lead more and more manufacturers to consider recovering value from their end-of-life products through remanufacturing. Remanufacturing may involve both refurbishing and harvesting for spare parts. Despite the similarities, there are significant differences in the planning problems in remanufacturing compared to regular production. The classical approaches need to be modified or totally new approaches need to be developed to address these problems. In this talk, I define basic characteristics of the problem and present a Mixed Integer Programming (MIP) formulation for the lot-sizing decisions of a remanufacturer. I show how the problem differs from the classical lot-sizing problem and provide preliminary computational results indicating problem difficulty. I also present an alternative formulation that is expected to lead to efficient algorithms for solving the problem.
Bio: Dr. Meltem Denizel is the Dean of Faculty of Business at Özyeğin University.
Dr. Denizel received her BSc in Industrial Engineering (1983) and MSc in Industrial Engineering (1986) from Middle East Technical University. She received a PhD in Decision and Information Sciences (1993) from Warrington School of Business at the University of Florida. Dr. Denizel worked as an Assistant Professor in the Department of Industrial Engineering at Middle East Technical University between 1994 and 1996 and as a Visiting Assistant Professor in the Warrington School of Business at the University of Florida between 1996 and 1999. In 1999, she joined the Graduate School of Business at Sabancı University where she worked first as an Associate then as a Full Professor until she joined Özyeğin University in 2009. She has been the Dean of the Faculty of Business since 2013.
Dr. Denizel works in the area of Operations Management. Her current research interests focus on product recovery systems through which she aims to contribute to the highly critical issue of sustainable use of scarce resources. She also continues her research in mathematical modelling and production lot sizing. Her previous works include flexible manufacturing and interdisciplinary research in marketing and operations, organization studies and technology management. Her research appeared in various journals, including Operations Research, Naval Research Logistics, Production and Operations Management, Operations Research Letters, Computers and OR, European Journal of Operations Research, The Journal of the Operational Research Society, INTERFACES, The Journal of International Research in Marketing and Decision Sciences. Her article titled “Multi Period Remanufacturing Planning with Uncertain Quality of Inputs” won the First Prize in the Production and Operations Management Society, 2008, Wickham Skinner Best Unpublished Paper Award. In 2007, she received a Fulbright Research Scholar Award to join the Institute for Sustainable Technology Development in the College of Management at the Georgia Institute of Technology between 2007 and 2008. In 2008 she also received Post Doctoral Research Scholar Award from TÜBİTAK. She is on the advisory board of Operations Research Spectrum, the editorial board of Flexible Services and Manufacturing Journal, and the academic advisory board of the Turkish Chapter of World Business Council for Sustainable Development.
Dr. Denizel teaches operations and supply chain management, business process analysis and design, management science applications, and linear optimization and extensions. She has taught in MBA, Executive MBA and PhD programs and has been actively involved in several Executive Education initiatives.