Publications

Book Chapters:

1. N. Safaei, D. Banjevic and A.K.S. Jardine, Multi-objective Simulated Annealing for a Maintenance Workforce Scheduling Problem: A case Study, Global Optimization: Focus on Simulated Annealing, ARS Publishing, Ed. Cher Ming Tan, pp. 27-48, 2008. ISBN 978-953-7619-07-7.

2. R. Tavakkoli-Moghaddam1 and N. Safaei, A New Mathematical Model for Flexible Flow Lines with Blocking Processor and Sequence-Dependent Setup Time, Multiprocessor Scheduling: Theory and Applications, ARS Publishing, Ed. Vedran Kordic, pp. 255-272, 2007.

3. R. Tavakkoli-Moghaddam, N. Safaei and M. Babakhani, Solving a dynamic cell formation problem with machine cost and alternative process plan by memetic algorithm, In: O. B. Lupanov, O.M. Kasim-Zade, A.V. Chaskin and K. Steinhofel (eds.), Lecture Notes in Computer Science, Vol. 3777, Springer, Berlin, pp. 213-227, 2005.

Accepted/Published Papers:

1. C. Kiassat, N. Safaei, D. Banjevic, Effects of Operator Learning on Production Output: A Markov Chain Approach, Accepted for publication in Journal of Operational Research Society, 2014 (doi:10.1057/jors.2013.98).

2. C. Kiassat, N. Safaei, D. Banjevic, Choosing the Optimal Intervention Method to Reduce Human-related Machine Failures, accepted for publication in European Journal of Operational Research, Vol. 233, No. 3, pp. 604–612, 2014 (http://dx.doi.org/10.1016/j.ejor.2013.09.002).

3. N. Safaei, Reza Tavakkoli-Moghaddam and Corey Kiassat, A hybrid particle swarm optimization to solve the redundant reliability problems with multiple component choices, Applied Soft Computing, Vol. 12, No. 11 pp. 3462-3471, 2012. (DOI:10.1016/j.asoc.2012.07.020).

4. N. Safaei, A. Zuashkiani, Manufacturing System Design Considering Multiple Machine Replacement under Discounted Costs, to be appeared in IIE Transactions, 2012 (http://www.tandfonline.com/doi/abs/10.1080/0740817X.2012.654845).

5. N. Safaei, D. Banjevic and A.K.S. Jardine, Workforce Planning for Power Restoration in Electricity Delivery Industry: an Integrated Simulation-Optimization Approach, IEEE Transactions on Power Systems, Vol. 27, No. 1, pp. 442-449, 2012 (http://dx.doi.org/10.1109/TPWRS.2011.2166090)

6. N. Safaei, Dragan Banjevic and Andrew K.S. Jardine, Workforce-constrained Maintenance Scheduling for Military Aircraft Fleet: A Case Study, Annals of Operations Research, Vol. 186, No. 1, pp. 295-316 (2011(10.1007/s10479-011-0885-4)

7. N. Safaei, Dragan Banjevic and Andrew K.S. Jardine, Multi-Threaded Simulated Annealing for a bi-objective Workforce-constrained Maintenance Scheduling Problem, International Journal of Production Research, Vol. 50, No. 1, 2012 (http://dx.doi.org/10.1080/00207543.2011.571444)

8. N. Safaei, D. Banjevic and A.K.S. Jardine, Bi-objective Workforce-constrained Maintenance Scheduling: A Case Study, Journal of Operational Research Society, Vol. 62, pp. 1005 –1018, 2011 (http://dx.doi.org/10.1057/jors.2010.51)

9. T. Zhigang, L. Wong, N. Safaei, A Neural Network Approach for Remaining Useful Life Prediction Utilizing Both Failure and Suspension Histories, Mechanical Systems and Signal Processing, vol. 24, No., 5, pp. 1542-1555, 2010 (10.1016/j.ymssp.2009.11.005)

10. N. Safaei, Reza Tavakkoli-Moghaddam and Farrokh Sassani, A Series-Parallel Redundant Reliability System for the Cellular Manufacturing Design, Proceedings of the Institution of Mechanical Engineers, Part O, Journal of Risk and Reliability, vol. 223, No. 3, pp. 233-250, 2009.

11. N. Safaei, D. Banjevic and A.K.S. Jardine, Impact of the Use-based Maintenance Policy on the Performance of Cellular Manufacturing Systems, International Journal of Production Research, vol. 48, No. 8, pp. 2233 - 2260, 2010 (http://dx.doi.org/10.1080/00207540802710273)

12. N. Safaei, R. Tavakkoli-Moghaddam, Integrated multi-period cell formation and subcontracting production planning in dynamic cellular manufacturing systems, International Journal of Production Economics, Vol. 120, No. 2, pp. 301-314, 2009 (10.1016/j.ijpe.2008.12.013).

13. N. Safaei, R. Tavakkoli-Moghaddam, An Extended Fuzzy Parametric Programming-based Approach for Designing Cellular Manufacturing Systems under Uncertainty and Dynamic Conditions, International Journal of Computer Integrated Manufacturing. vol. 22, No. 6, pp. 538–548, 2009 (10.1080/09511920802616773).

14. Tavakkoli-Moghaddam, R., N. Safaei, and Azaron, A., Designing a fuzzy system for controlling the armament fire in dynamic siege, Expert Systems with Applications, Vol. 36, No. 9, pp. 11691-11698, 2009 (http://dx.doi.org/10.1016/j.eswa.2009.03.010).

15. M. Bazzazi, N. Safaei and N. Javadian, A genetic algorithm to solve the storage space allocation problem in a container terminal, Journal of Computer and Industrial Engineering. Vol. 56, pp. 44–52, 2009 (10.1016/j.cie.2008.03.012).

16. R. Tavakkoli-Moghaddam, N. Safaei, F. Sassani, A memetic algorithm for the flexible flow line scheduling problem with processor blocking, Journal of Computers and Operations Research, vol. 36, No. 2, pp. 402-414, 2008 (10.1016/j.cor.2007.10.011).

17. N. Safaei, M. Saidi-Mehrabad, R. Tavakkoli-Moghaddam and F. Sassani, A Fuzzy Programming Approach to a Cell Formation Problem with Dynamic and Uncertain Conditions, Journal of Fuzzy Sets and Systems, vol. 159, pp. 215 – 236, 2008 (http://dx.doi.org/10.1016/j.fss.2007.06.014).

18. R. Tavakkoli-Moghaddam, N. Safaei, F. Sassani, A new solution for a dynamic cell formation problem with alternative routing and machine costs using simulated annealing. Journal of Operational Research Society, Vol. 59, pp. 443–454, 2008 (http://dx.doi.org/doi:10.1057/palgrave.jors.2602436).

19. R. Tavakkoli-Moghaddam, N. Safaei and M.M.O. Kah, Accessing feasible space in a generalized job shop scheduling problem with the fuzzy processing times: a fuzzy-neural approach, Journal of Operational Research Society, Vol. 59, pp. 431–442, 2008 (http://dx.doi.org/10.1057/palgrave.jors.2602351).

20. N. Safaei, M. Saidi-Mehrabad, M.S. Jabal-Ameli, A hybrid simulated annealing for solving an extended model of dynamic cellular manufacturing system, European Journal of Operational Research, vol. 185 (2), pp 563-592, 2008 (http://dx.doi.org/10.1016/j.ejor.2006.12.058).

21. N. Safaei, M. Saidi-Mehrabad and M. Babakhani, Designing cellular manufacturing systems under dynamic and uncertain conditions, Journal of Intelligent Manufacturing, Vol. 18, pp. 383–399, 2007 (http://dx.doi.org/10.1007/s10845-007-0029-5).

22. M. Saidi-Mehrabad and N. Safaei, A new model of dynamic cell formation by a neural approach, International Journal of Advanced Manufacturing Technology, Vol. 33, 1001-1009, 2007 (http://dx.doi.org/10.1007/s00170-006-0518-2).

23. A. Azaron, M. Sakawa, R. Tavakkoli-Moghaddam and N. Safaei, A discrete-time approximation technique for the time-cost trade-off in PERT networks, Rairo-OR, Vol. 41, pp. 61-81, 2007 (http://dx.doi.org/10.1051/ro:2007005).

24. R. Tavakkoli-Moghaddam, M.B. Aryanezhad, N. Safaei, M. Vasei and A. Azaron, A new approach for the cellular manufacturing problem in fuzzy dynamic conditions by a genetic algorithm, Journal of Intelligent & Fuzzy Systems, Vol 18 (4), pp. 363-376, 2007.

25. R. Tavakkoli-Moghaddam, N. Safaei, M.M.O. Kah and M. Rabbani, A new capacitated vehicle routing problem with split service for minimizing fleet cost by simulated annealing, Journal of the Franklin Institute, Vol, 344(5), pp. 406-425, 2007 (http://dx.doi.org/10.1016/j.jfranklin.2005.12.002).

26. N. Safaei, S.J. Sadjadi and M. Babakhani, An efficient genetic algorithm for determining the optimal price discrimination, Applied Mathematics and Computation, Vol. 181(2), pp. 1693-1702, 2006 (10.1016/j.amc.2006.03.022).

27. S.M. Seyed-Hosseini, N. Safaei and M.J. Asgharpour, Reprioritization of failures in a system failure mode and effects analysis by decision making trial and evaluation laboratory technique, Reliability Engineering and System Safety, Vol. 91(8), pp. 872-881, 2006 (http://dx.doi.org/10.1016/j.ress.2005.09.005).

28. R. Tavakkoli-Moghaddam, N. Safaei and Y. Golipour, A hybrid metaheuristic for Capacitated vehicle routing problem independent of route length, Applied Mathematics and Computation, Vol. 176(2), pp. 445-454, 2006 (http://dx.doi.org/10.1016/j.amc.2005.09.040).

29. R. Tavakkoli-Moghaddam, M.B. Aryanezhad, N. Safaei, A. Azaron, Solving a dynamic cell formation problem using metaheuristics, Applied Mathematics and Computation, Vol. 170, pp. 761-780, 2005 (http://dx.doi.org/10.1016/j.amc.2004.12.021).

Conference Papers

1. N. Safaei, Simultaneous Aircraft Routing and Maintenance Workload Management, AGIFORS Airline Operations, Frankfurt, Germany, 18-21 June, 2013.

2. N. Safaei, A.K.S. Jardine, An Integrated Module for Aircraft Maintenance Routing and Work Packaging, INFORMS Annual Meeting, Phoenix, AZ, U.S.A., 14-17 October, 2012.

3. N. Safaei, Aircraft Maintenance Routing Using Detailed Maintenance Program, INFORMS Annual Meeting, Charlotte, NC, U.S.A., 13-16 November, 2011

4. A. Zuashkiani, N. Safaei, A.K.S. Jardine, Long & Medium-term Forecasting of Operation & Maintenance Costs in an Electrical Utility: Case Study Using Principle of Evidence Based Asset Management, ICOMS Asset Management Conference, 16-20 May 2011, Gold Coast, Australia.

5. N. Safaei, Dragan Banjevic and Andrew K.S. Jardine, Workforce-constrained Maintenance Scheduling for Aircraft Fleet: A Case Study, Proceedings of 16^thISSAT International Conference on Reliability and Quality in Design, Washington D.C., U.S.A., 5-7 August, 2010, pp. 291-297.

6. N. Safaei, Behzad Ghodrati, Maintenance Workforce Management: A Case Study, Proceeding of the 1^st International Congress on e-Maintenance, Lulea, Sweden, 22-24 June, 2010, pp. 38-45.

7. C. Kiassat and N. Safaei, Integrating Human Reliability Analysis into a Comprehensive Maintenance optimization Strategy, 4th World Congress on Engineering Asset Management (WCEAM), Athens, Greece, 28-30, September, 2009.

8. N. Safaei and A.K.S. Jardine, A Parallel Simulated Annealing for a Multi-objective Maintenance Workforce Scheduling Problem, 9^thCORS-INFORMS International meeting, Toronto, 14-17, June, 2009.

9. N. Safaei, D. Banjevic and A.K.S. Jardine, Multi-objective Maintenance Workforce Scheduling in a Steel Company, 13^thIFAC Symposium on Information Control Problems in Manufacturing (InCom09), Moscow, 3-5, June, 2009.

10. N. Safaei, D. Banjevic and A.K.S. Jardine, Economic Life of Capital Equipments in a Cellular Manufacturing System, 13th IFAC Symposium on Information Control Problems in Manufacturing (InCom09), Moscow, 3-5, June, 2009.

11. N. Safaei, D. Banjevic and A.K.S. Jardine, Modeling a Multi-objective Maintenance Workforce Scheduling Problem: A case Study, CORS/Optimization Conference, Quebec: Canada, May 12-14, 2008.

12. R. Tavakkoli-Moghaddam, N. Safaei and F. Sassani, Particle swarm optimization for redundant reliability problems with multiple component choice, The 7th Metaheuristics Int. Conf. (MIC2007), Montreal: Canada, June 25-29, 2007.

13. R. Tavakkoli-Moghaddam and N. Safaei, A generalized dynamic cell formation problem with fuzzy demand and unreliable facilities, Proceeding of the 3^rd International Conference on Group Technology / Cellular Manufacturing, Groningen: Netherlands, July 3-5, 2006, pp. 349-356.

14. N. Safaei and R. Tavakkoli-Moghaddam, Reliability consideration in a cell formation problem with parallel-series configuration, Proceeding of the 3^rd International Conference on Group Technology / Cellular Manufacturing, Groningen: Netherlands, July 3-5, 2006, pp. 36-43.

15. N. Javadian, B. Javadi, R. Tavakkoli-Moghaddam and N. Safaei, Possibility linear programming to uniform parallel machines scheduling with sequence-dependent setup times: early/tardy penalties, Proceeding of the 36^th International Conference on Computers and Industrial Engineering, Taipei: Taiwan, June 20-23, 2006, pp. 3488-3497.

16. M. Saidi-Mehrabad, N. Safaei and R. Tavakkoli-Moghaddam, A fuzzy parametric programming for cell formation problem in uncertainty and dynamic conditions, Proceeding of the 36th International Conference on Computers and Industrial Engineering, Taipei: Taiwan, June 20-23, 2006, pp. 2703-2713.

17. N. Safaei and R. Tavakkoli-Moghaddam, The use of genetic algorithms for multi-mode resource-constrained project planning with the diminishing returns, Proceeding of the 5th International Symposium on Intelligent Manufacturing Systems, Sakarya, Turkey, May 29-31, 2006, pp. 216-226.

18. R. Tavakkoli-Moghaddam and N. Safaei, Modeling flexible flow lines with blocking and sequence dependent setup time, Proceeding of the 5th International Symposium on Intelligent Manufacturing Systems, Sakarya, Turkey, May 29-31, 2006, pp. 149-158.

19. N. Safaei, R. Tavakkoli-Moghaddam and S. Jabal-Ameli, A generalized cell formation problem in dynamic environment with different inter and intra-cell batch sizes, Proceeding of The 12^th IFAC Symposium on Information Control problems in Manufacturing, Saint Etienne, France, May 15-19, 2006, Vol. 2, pp. 401-406.

20. R. Tavakkoli-Moghaddam, N. Safaei and S.A. Torabi, Scheduling of flexible flow lines with blocking by memetic algorithms, Proceeding of the 12^th IFAC Symposium on Information Control problems in Manufacturing, Saint Etienne, France, May 15-19, 2006, Vol. 3, pp. 21-26.

21. R. Tavakkoli-Moghaddam and N. Safaei, An EVolutionary Algorithm for a Single-Item Resource-Constrained Aggregate Production Planning Problem, IEEE Congress on Evolutionary Computation, Vancouver, BC, Canada, July 16-21, 2006.

22. R. Tavakkoli-Moghaddam and N. Safaei, A genetic algorithm based on queen bee for scheduling a flexible flow line with blocking, Proceeding of the 1^st Tehran International Congress on Manufacturing Engineering (TICME2005), Tehran, Iran, 12-15 December 2005.

23. R. Tavakkoli-Moghaddam, N. Safaei and S.B. Kashani, Modeling diminishing returns in multi-mode resource-constrained project planning by genetic algorithm, Proceeding of the 4^th International Industrial Engineering Conference (IIEC2005), Tehran, Iran, December 8-11, 2005.

24. R. Tavakkoli-Moghaddam, N. Safaei and M. Babakhani, A neural approach for constraint satisfaction of a generalized job shop scheduling problem with fuzzy process times, Proceeding of the 3^rd European Conference on Intelligent Management Systems in Operations, Salford, U.K., 28-29 June, 2005.

25. R. Tavakkoli-Moghaddam and N. Safaei, A new dynamic cell formation model for determining cell size, routing flexibility, and machine relocation, Proceeding of the 3^rd European Conference on Intelligent Management Systems in Operations, Salford, U.K., 28-29 June, 2005.

26. R. Tavakkoli-Moghaddam and N. Safaei, Scheduling of flexible flow lines with blocking by genetic algorithms, Proceeding of the 35^th International Conference on Computers & Industrial Engineering (CIE2005), Istanbul, Turkey, 19-22 June, 2005.

27. R. Tavakkoli-Moghaddam, M.S. Mehrabad and N. Safaei, A new generalized cell formation model in uncertainty and dynamic conditions by assuming routing flexibility and machine relocation, Proceeding of The 35^th International Conference on Computers and Industrial Engineering (CIE2005), Istanbul, Turkey, 19-22 June 2005.

28. R. Tavakkoli-Moghaddam, M. Rabbani, N. Safaei, and K. Shariat, Vehicle routing problems with soft time windows by an efficient method, Proceeding of the 1^st International Conference on Modeling, Simulation and Applied Optimization (ICMSA2005), Sharjah, U.A.E., 1-3 February 2005.