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Biography

Prof. Mohsen Elhafsi

University of California-Riverside, USA

Professor


Email: Mohsen.elhafsi@ucr.edu


Research fields

Operations and Supply Chain Management

Optimization in the design, Planning and Control of Manufacturing and Service Operations

Markov Decision Processes, Optimal Control, Stochastic Modeling


Qualifications

1995 Ph.D., Industrial Engineering, University of Florida, USA

1995 M.Sc., Industrial Engineering, University of Florida, USA

1988 M.E/B.Sc., Industrial Engineering, Ecole Nationale d’Ingénieurs de Tunis, France


Publications (selected)

  1. S. Benjaafar, M. Elhafsi, W. Zhou, and C. Y. Lee “Optimal Production and Inventory Control of Multi-Stage Assembly Systems with Multiple Demand Classes,” Operations Research, 59(2), 522-529 (2011).
  2. S. Benjaafar, M. Elhafsi “A Production-Inventory System with both Patient and Impatient Demand Classes”, IEEE Transactions on Automation Science and Engineering, 9(1), 148-159, 2012.
  3. M. Elhafsi, H. Camus and E. Craye, “Managing an Integrated Production Inventory System with Information on the Production and Demand Status and Multiple Non-Unitary Demand Classes,” European Journal of Operational Research, 207(2), 986-1001, (2010).
  4. S. Benjaafar, M. Elhafsi, and W. Tinglian “Optimal Control of a Production-Inventory System with both Backorders and Lost Sales,” Naval Research Logistics, 57, 252-265, (2010).
  5. M. Elhafsi, “Optimal Integrated Production and Inventory Control of an Assemble-to-Order System with Multiple Non-Unitary Demand Classes,” European Journal of Operational Research, 194, 127–142, (2009).
  6. M. Elhafsi, H. Camus and E. Craye, “Optimal Control of a Nested-Multiple-Product Assemble-To-Order System” International Journal of Production research, 46(19) 5367-5392, 2008.
  7. S. Benjaafar and M. Elhafsi, “Production and Inventory Control of a Single Product Assemble-to-Order Systems with Multiple Customer Classes,” Management Science, 52(12) 1896-1912, 2006
  8. S. Benjaafar, M. Elhafsi and F. De Véricourt, “Demand Allocation in Multiple-Product, Multiple-Facility Make-To-Stock Production Systems,” Management Science, 50(10) 1431-1448, 2004.
  9. B. Dodin and M. ElHafsi, “Scheduling of a Multi-Item-Single-Facility System with Time Varying Demands and Inventory and Backorder Costs,” International Journal of Operations and Quantitative Management, 10(1) 1-22, 2004.
  10. M. ElHafsi, “Optimal Lead-Time Planning in Serial Production Systems with Earliness and Tardiness Costs,” IIE Transactions, 34(3) 233-243, 2002
  11. M. ElHafsi, “A Production Planning Model for an Unreliable Production Facility: Case of Finite Horizon and Single Demand,” European Journal of Operational Research, 143, 94-114, 2002.
  12. B. Dodin, M. Elhafsi, J. Varzandeh, and K. Farahbod, “Decision Support Systems and Design for Reverse Logistics,” Journal of International Information Management, 69-73, Fall 2001.
  13. M. ElHafsi, “An Operational Decision Model for Lead-Time and Price Quotation in Congested Manufacturing Systems,” European Journal of Operational Research, 126(2): 355-370, 2000.
  14. M. ElHafsi, and E. Rolland, “Negotiating Price/Delivery Dates in a Stochastic Manufacturing Environment,” IIE Transactions, 31(3): 255-270, 1999.
  15. M. ElHafsi and S. X. Bai "Multi-Period Production Planning and Control with Demand and Cost Fluctuations," Journal Of Mathematical and Computer Modelling. 28(3): 103-119, 1998.
  16. M. ElHafsi and S. X. Bai, "Optimal and Near Optimal Control of a Two-Part-Type Stochastic Manufacturing System with Dynamic Setups," Journal of Production and Operations Management, 6(4): 419-438, 1997.
  17. M. ElHafsi and S. X. Bai, "The Common Cycle Economic Lot Scheduling Problem with Backorders: Benefits of a Controllable Production Rate," Journal Of Global Optimization, 10: 283-303, 1997.
  18. G. Vairaktarakis and M. ElHafsi, "The Use of Flowlines to Simplify Routing Complexity in Two-Stage Flowshops," IIE Transactions, 32(8): 687-699, 2000.
  19. F. J. Krämer, M. ElHafsi and S. X. Bai, "Production Flow Control for a Manufacturing System with Flexible Routing," Journal of Production and Operations Management, 6(1): 37-56, 1997.
  20. S. X. Bai, Y. K. Tsai, M. ElHafsi, and K. Deng, "Production Scheduling in a Price Competition," Computers and Mathematics with Applications, 33(5): 5-19, 1997.
  21. S. X. Bai and M. ElHafsi, "Scheduling of an Unreliable Manufacturing System with Nonresumable Setup Changes," Computers and Industrial Engineering, 32(4): 909-925, 1997.
  22. M. ElHafsi and S. X. Bai, "Optimal Production Control of a Dynamic Two-Product Manufacturing System with Setup Costs and Setup Times," Journal Of Global Optimization, 9:183-216, 1996.
  23. M. ElHafsi and S. X. Bai, "Optimal Production and Setup Control of a Dynamic Two-Product Manufacturing System: Analytical Solution," Journal Of Mathematical and Computer Modelling, 24(3): 57-78, 1996.
  24. S. X. Bai and M. ElHafsi, "Transient and Steady State Analyses of a Manufacturing System with Setup Changes," Journal Of Global Optimization, 8:349-378, 1996.
  25. S. X. Bai, H. Burhanpurwala, M. ElHafsi and Y. K. Tsai, " Hierarchical Production Control for a Flow Shop with Dynamic Setup Changes and Random Machine Breakdowns," Operations Research Spektrum, 18: 81-96, 1996.
  26. M. ElHafsi and S. Yeralan, "Computer Control System for a Cutting Machine," Computers and Industrial Engineering, 23(1-4), 345-348, 1992.
  27. L. Ammar, M. Achour and M. ElHafsi, "Etude Et Conception De Systèmes d'Appoint Pour Chauffe-Eau Solaire", Les Annales de l'ENIT, 2, July 1988.
  28. Elhafsi, M., H. Camus, E. Craye, “Managing an Integrated Production Inventory System with Information on the Production and Demand Status and Multiple Non-Unitary Demand Classes” the International Conference of Modeling and Simulation - MOSIM’10 - May 10-12, 2010 - Hammamet - Tunisia.
  29. M. ElHafsi, S. Benjaafar, and Y. Yu, “Production and Inventory Control of a System with Multiple Sources of Supply” 15th International Annual EUROMA Conference June 15-18, 2008, University of Groningen, TheNetherlands.
  30. M. Elhafsi, H. Camus, E. Craye, “Optimal Control of a Nested-Multiple-Product Assemble-To-Order System” International Workshop: Logistics and Transportation, IEEE/SMC co-sponsored workshop, Nov. 18-20, 2007, Tunisia
  31. S. Yeralan and M. ElHafsi, "Recent Advances In Intelligent Machine Tools," Proceedings of the 5th Annual Conference On Recent Advances In Robotics, FloridaAtlanticUniversity, June 11-12, 1992.
  32. S. X. Bai and M. ElHafsi, "Optimal Feedback Control of a Manufacturing System with Setup Changes," Proceedings of the Fourth International Conference on Computer Integrated Manufacturing and Automation Technology, October 10-12, 1994, in Troy, New York.
  33. M. ElHafsi and S. X. Bai, "Production and Setup Control in a Stochastic Manufacturing System," Proceedings of the 5th Industrial Engineering Research Conference, May 18-20, 1996, Minneapolis, Minnesota.


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