Northwestern University Industrial Engineering and Management Sciences










  • Queueing Theory
  • Iravani, S.M.R. and M.J.M. Posner, "An M/G/1 Queue with Cyclic Service Times." Queueing Systems  22 (1996) 145--169.

    Iravani S.M.R., Posner M.J.M. and J.A. Buzacott, "A Two-Stage Tandem Queue Attended by a Moving Server with Holding and Switching Costs." Queueing Systems  26 (1997) 203-228.

    Iravani, S.M.R., L. Luangkesorn and D. Simchi-Levi, "A General Decomposition Algorithm for Parallel Queues with Correlated Arrivals." Queueing Systems  47 (2004) 313-344.

    Iravani, S.M.R., and B. Kolfal, "When Does The Cmu Rule Apply to Finite-Population Queueing Systems." Operations Research Letters  33 (2005) 301-304.

    Iravani, S.M.R., Krishnamurthy, V., and G.H. Chao (2006), "Optimal Server Scheduling in Nonpreemptive Finite-Population Queueing Systems." Queueing Systems  55 (2007) 95-105.

  • Flexibility in Production and Service Operations Systems:
  • Iravani, S.M.R., Buzacott, J.A. and M.J.M. Posner, "Operations and Shipment Scheduling of a Batch on a Flexible Machine." Operations Research  51 (2003) 585-601.

    Iravani, S. M. R., Buzacott, J.A. and M. J. M. Posner, "Robustness of Limited Policy in an Agile Production System" Naval Research Logistics  52 (2005) 58-73.

    Iravani, S.M.R., Sims, K. and M.P. Van Oyen, "Structural Flexibility: A new perspective on the Design of Manufacturing and Service Operations." Management Science  51 (2005) 151-166.

    Iravani, S.M.R. and V. Krishnamurthy (2002) "Workforce Agility in Repair and Maintenance Environments." Manufacturing and Service Operations Management  9 (2007) 168-184.

    Iravani, S.M.R. and C.P. Teo, "Asymptotically Optimal Schedules for Single-Server Flow Shop Problems with Setup Costs and Times." Operations Research Letters  33 (2005) 421-430.

    Hopp, W.J., Iravani, S.M.R., and B. Shou, "Serial Agile Production Systems with Automation." Operations Research  53 (2005) 852-866.

    Hopp, W.J., Iravani, S.M.R., and B. Shou (2005) "Agile Automated Production Systems: To Push or To Pull? " Under revision for Naval Research Logistics.

    Sennott, L. I., Van Oyen, M.P. and S.M.R. Iravani (2003) "Optimal Dynamic Assignment of a Flexible Worker on an Open Production Line with Specialists." European Journal of Operational Research  170 (2006) 541-566.

    Kula, U., Duenyas, I. and S.M.R. Iravani, "Estimating Job Waiting Times in Production Systems with Cross-Trianed Setup Crews." IIE Transactions  36 (2004) 999--1010.

    Iravani, S.M.R., Kolfal, B. and M.P. Van Oyen (2004) "Call Center Labor Cross-Training: It's a Small World After All." Management Science  53 (2007) 1102--1112.

    Hopp, W.J., Iravani, S.M.R., and W. Lu Xu, (2006) "Vertical Flexibility in Supply Chains." Under Revision for Management Science.

  • White Collar Work and Service Operations Systems:
  • Hopp, W.J., Iravani, S.M.R., and G. Yuen (2004) "Discretionary Task Completion: A Key Difference between White-Collar and Blue-Collar Work Systems." To appear in Management Science.  53 (2007) 61-77.

    Hopp, W.J., Iravani, S.M.R., and F. Liu (2006) "White Collar Workforce Management: An Operations-Oriented Survey." To appear in Production and Operations Management.

    Hopp, W.J., Iravani, S.M.R., and G. Yuen, (2006) "Trust and Information Sharing in Supply Chains." Submitted for publication.

  • Inventory Management and Supply Chains
  • Iravani, S.M.R., Luangkesorn, L. and D. Simchi-Levi, "On Assemble-To-Order Systems with Flexible Customers." IIE Transactions  35 (2003) 389--403.

    Iravani, S.M.R., Liu, T., Luangkesorn, L. and D. Simchi-Levi (2006), "Produce-to-Stock Systems with Advanced Order Information and Secondary Customers." Naval Research Logistics.  54 (2007) 331-345.

    Huang, B. and S.M.R. Iravani, "Production Control Policies in Supply Chain under Selective Information Sharing." Operations Research  53 (2005) 662--674.

    Huang, B. and S.M.R. Iravani (2004) "Make-to-Stock System with Multiple Customer Classes and Batch Ordering." To appear in Operations Research.

    Huang, B. and S.M.R. Iravani (2004) "Optimal Production and Rationing Decisions in Supply Chains with Information Sharing." To appear in Operations Research Letters.

    Ilhan, T., Iravani, S.M.R., and M. Daskin (2005) "The Orienteering Problem with Stochastic Demands." To appear in IIE Transactions.

    Chao, G., Iravani, S.M.R., and C. Savaskan (2006) "External Quality Cost Contracting." Under Revision for Management Science.

    Lien, R., Iravani, S.M.R., Smilowitz, K., and M. Tzur (2005) "Effecient and Robust Transshipment Design." Under revision for Production and Operations Management.

    Hopp, W.J., Iravani, S.M.R., and G. Yuen, (2006) "The Role of Salesforce and Incentive Plans in Promoting Supply Chain Performance." Under revision for Management Science.

  • Integrated Production and Maintenance
  • Iravani S.M.R., Duenyas I. and Tava L. Olsen, "A Production/Inventory System Subject to Failure with Limited Repair Capacity." Operations Research 48 (2000) 951--964.

    Iravani, S. M. R. and Izak Duenyas "Integrated Maintenance and Production Control of a Deteriorating Production System." IIE Transactions 34 (2002) 423-435.

    Huang, B. and S.M.R. Iravani (2004) "Integrated Production and Maintenance Policies in Produce-to-Stock Systems with Information Sharing." Under revision for Naval Research Logistics.

  • Production Systems

    Birnbaum, B., Hopp, W.J., Iravani, S.M.R., Livingston, K. and Shou, B. and T. Tirpak (2004). "Task Aware Information Access for Diagnosis of Manufacturing Systems." The Proceeding of 2005 International Conference on Intelligent User Interfaces, (IUI'05) 308-310

    Hopp, W.J., Iravani, S.M.R., and B. Shou "A Diagnostic Tree for Improving Serial Manufacturing Environments." Production and Operations Management. 16 (2007) 77-92.

  • Books and Book Chapters

    Diermeier, D., Hopp, W.J., and S.M.R. Iravani. "``Innovating Under Pressure -- Towards A Science of Crisis Management." A Chapter in Innovation Policy and the Economy, Volume 7, NBER Publisher.

    Iravani, S.M.R., Queueing Systems, Vol. I: Poisson Process and Markov Chains. IUST Press, Tehran, 1992 (in Persian)

    Iravani, S.M.R., Queueing Systems, Vol. II: Queueing Models. IUST Press, Tehran, 1993 (in Persian)

  • Working Papers

    Chao G., and S.M.R. Iravani (2004) "The Value of Information in Supply Chains with Contract and Random Orders." Department of Industrial Engineering and Management Sciences, Northwestern University, Evanston, IL.

    Ilhan, T., Iravani, S.M.R., and M. Daskin (2006) "The Adaptive Knapsack Problem with Stochastic Demands." Department of Industrial Engineering and Management Sciences, Northwestern University, Evanston, IL.

    Iravani, S.M.R., Kolfal, B. and M.P. Van Oyen (2005) "Capability Flexibility: A Decision Support Methodology for Production and Service Systems with Flexible Resources." Department of Industrial Engineering and Management Sciences, Northwestern University, Evanston, IL.

    Iravani, S.M.R., and V. Krishnamurthy (2005) "Optimal Production and Maintenance Policies in Production Systems with Advance Order Information." Department of Industrial Engineering and Management Sciences, Northwestern University, Evanston, IL.

    Iravani, S.M.R., Liu, T. and D. Simchi-Levi (2005), "Optimal Production and Admission Policies in Make-to-Stock/Make-to-Order Manufacturing Systems." Department of Industrial Engineering and Management Sciences, Northwestern University, Evanston.

    Iravani, S.M.R., B. Shou and J. Huang (2003). "Gated-Limited Policy in Tandem Queues with Flexible Server." Department of Industrial Engineering and Management Sciences, Northwestern University, Evanston, IL.

    Iravani S.M.R., Posner M.J.M. and J.A. Buzacott (1997). "U-shaped Lines with Switchover Times and Cost." Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, Michigan.

    Iravani S.M.R., Posner M.J.M. and J.A. Buzacott (1996). "An N-Stage Tandem Queue Attended by a Moving Server with Holding and Switching Costs." Department of Mechanical and Industrial Engineering, University of Toronto, Canada.

     

iravani@iems.northwestern.edu