Aşkıner Güngör graduated from Gazi University, Faculty of Engineering and Architecture, Department of Industrial Engineering in 1992. In October 1993, he joined Northeastern University in Boston, Massachusetts, USA, where he received his master's degree in 1996 and his PhD degree in 1999 with his thesis on “Algorithmic models for de-assembly systems and processes”. At the end of 1999, Dr. Güngör joined the Department of Industrial Engineering at Pamukkale University, where he is currently an Professor and head of the Department of Industrial Engineering. His current research interests include green supply chain, disassembly, disassembly line balancing, product recovery and environmentally conscious manufacturing. He has also been an R&D consultant to companies in various sectors. Olcay Polat received his Industrial Engineering PhD degree from the Technical University of Berlin (Germany) with the scholarship of German Academic Exchange Service (DAAD) in 2013. He has been working as Professor in the Department of Industrial Engineering at Pamukkale University (Turkey). He has a special interest in supply chain management, logistics and transportation optimization, production management and risk management. He has been published more that 100 papers in respected journals, conference proceedings and books.