Refik GÜLLÜ, Ph.D., Professor
:: Education
B.S. in Industrial Engineering, Middle East Technical University, 1987;
M.S. in Industrial Engineering, Middle East Technical University, 1989;
M.S. in Industrial Engineering, Cornell University, 1992;
Ph.D. in Industrial Engineering, Cornell University, 1993.
:: Research Interests

Supply Chain Modeling and Analysis, Stochastic Models, Production Planning, Multi-level Production/ Inventory Systems, Queuing Theory.
:: Offered Courses
  • IE 202  Operations Research I: Linear Models (Fall 2005)
  • IE 255  Probability for Industrial Engineers (Fall 2006, Fall 2008, Fall 2009)
  • IE 488  Forecasting (Spring 2006, Spring 2007, Spring 2008)
  • IE 505  Stochastic Processes and Applications (Fall 2007, Fall 2008, Fall 2009)
  • IE 588  Queuing Models (Fall 2005)
  • IE 592  Stochastic Models in Finance (Spring 2008, Spring 2009)
  • IE 621  Inventory Control Theory (Fall 2006)
:: Recent Publications
  • Tan, T., R. Güllü and N. Erkip (2007). "Modelling imperfect advance demand information and analysis of optimal inventory policies." European Journal of Operational Research. 177(2): 897-923.
  • Bayındır, Z. P., N. Erkip and R. Güllü (2005). "Assessing the benefits of remanufacturing option under one-way substitution." Journal of the Operational Research Society. 56(3): 286-296.
  • Erten, Y. M., R. Güllü, H. Süral and S. Neftçi (2005). "A knapsack model for bandwidth management of prerecorded multiple MPEG video sources." Telecommunication Systems. 28(1): 101-116.
  • Güllü, R., G. J. van Houtum, F. Z. Sargut and N. Erkip (2005). "Analysis of a decentralized supply chain under partial cooperation." Manufacturing & Service Operations Management. 7(3): 229.
  • Güllü, R. (2004). "Analysis of an M/G/∞ queue with batch arrivals and batch-dedicated servers." Operations Research Letters. 32(5): 431-438.
  • Pamuk, S., M. Köksalan and R. Güllü (2004). "Analysis and improvement of the product delivery system of a beer producer in Ankara." Journal of the Operational Research Society. 55(11): 1137-1144.
  • Bayındır, Z. P., N. Erkip and R. Güllü (2003). "A model to evaluate inventory costs in a remanufacturing environment." International Journal of Production Economics. 81: 597-607.

:: Contact Information

Personal URL

 -

e-mail

 refik.gullu

Phone (office)

 + 90 (212) 359 7034

Fax (office)

 + 90 (212) 265 1800

Address

 Boğaziçi University
Department of Industrial Engineering
34342, Bebek-Istanbul, Turkey