Opportunities:

Opportunities for graduate studies will be posted here when they are available.

However, students with 85% or above in their B.Sc. and M.Sc. are always encouraged to apply as there may be special opportunities for exceptionally talented students.

 Then Peter, filled with the Holy Spirit, said to them: “Rulers and elders of the people!  If we are being called to account today for an act of kindness shown to a man who was lame and are being asked how he was healed, then know this, you and all the people of Israel: It is by the name of Jesus Christ of Nazareth, whom you crucified but whom God raised from the dead, that this man stands before you healed. Jesus is

“‘the stone you builders rejected,
    which has become the cornerstone.’

Salvation is found in no one else, for there is no other name under heaven given to mankind by which we must be saved.”


Acts 4:8-12

 

 

 

 

 

 

 

 

 

 

Publications

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Refereed Journal Articles (total of 34)

  1. Al-Wajidi, W., Deiab, I., Defersha, F. and Elsayed, A. (2018). Effect of MQL on the microstructure and strength of friction stir welded 6061 Al alloy, International Journal of Advanced Manufacturing Technology, In press.
  2. Paul, S., Dutta, A., and Defersha, F.(2018). Biocarbon, biomethane and biofertilizer from corn residue: A hybrid thermo-chemical and biochemical approach. Energy, Vol. 165, 370-384
  3. Defersha, F. M., and Mohebalizadehgashti, F. (2018). Simultaneous Balancing, Sequencing, and Workstation Planning for a Mixed Model Manual Assembly Line using Hybrid Genetic Algorithm. Computers & Industrial Engineering, Vol. 119, 370-387. Download PDF
  4. Defersha, F. M., and Bayat Movahed, S. (2018). Linear programming assisted (not embedded) genetic algorithm for flexible jobshop scheduling with lot streaming. Computers & Industrial Engineering, Vol. 117, 319-335. Download PDF
  5. Paul, S., Dutta, A., and Defersha, F.(2018). Mechanical and Alkaline Hydrothermal Treated Corn Residue Conversion in to Bioenergy and Biofertilizer: A Resource Recovery Concept. Energies, Vol. 11, 516
  6. Paul, S., Dutta, A., Defersha, F., and Dubey, B. (2018). Municipal Food Waste to Biomethane
    and Biofertilizer: A Circular Economy Concept. Waste and Biomass Valorization, Vol. 9, 601-
    611
  7. Defersha, F. M, and Hodiya, A. (2017). A Mathematical Model and a Parallel Multiple Search Path Simulated Annealing for an Integrated Distributed Layout Design and Machine Cell Formation, Journal of Manufacturing Systems, Vol. 43, 195-212. Download PDF
  8. Shafigh, F.,  Defersha, F. M., and Moussa, S.E., (2017). A Linear Programming Embedded Simulated Annealing in the Design of Distributed Layout with Production Planning and Systems Reconfiguration, Journal of Advanced Manufacturing Technology, Vol. 88, 1119-1140 (click here to read).
  9. Muthuraj, R., Misra, M., Defersha, F., and Mohanty, A. K., (2016). Influence of processing parameters on the impact strength of biocomposites: A statistical approach. Composites: Part A: Applied Science and Manufacturing, Vol. 83, 120-129.
  10. Defersha, F. M., (2015) A Simulated Annealing with Multiple Search Paths and Parallel Computation for a Comprehensive Flowshop Scheduling Problem. International Transactions in Operational Research, Vol. 22, 669-691 Download PDF
  11. Shafigh, F.,  Defersha, F. M., and Moussa, S.E., (2015). A mathematical model for the design of distributed layout by considering production planning and system reconfiguration over multiple time periods. Journal of Industrial Engineering International, Vol.11, 283-295.
  12. Liu, Y., Chang, S., Defersha, F. M., Guo, Q., and Chen, R., (2015). Characterization of Proton Binding Properties of Extracellular Polymeric Substances in an Expanded Granular Sludge Bed Using Linear Programming Analysis. Accepted and published online in the Journal of Advances in Biology & Biotechnology, ISSN: 2394-1081.
  13. Liu, Y., Chang, S., and Defersha, F. M., (2015). Characterization of the proton binding sites of extracellular polymeric substances in an anaerobic membrane bioreactor. Water Research, Vol. 78, 133143.
  14. Zarrinbakhsh, N., Defersha1, F. M., Mohanty, A. K., and Misra, M. (2014) A Statistical Approach to Engineer a Biocomposite Formulation from Biofuel Coproduct with Balanced Properties. Journal of Applied Polymer Science, Vol. 131(Issue 13).
  15. Defersha, F. M., and Chen, M., (2012). Job shop lot streaming with routing flexibility, sequence-dependent setups, machine release dates and lag time. International Journal of Production Research, Vol. 50, 2331-2352. Download PDF
  16. Defersha, F. M., and Chen, M., (2012) A Mathematical Model and Parallel Genetic Algorithm for Solving Hybrid Flexible Flowshop Lot Streaming Problem. International Journal of Advanced Manufacturing Technology Vol. 62, 246 -265 (click here to read)
  17. Salam, A., Defersha, F. M., and Bhuiyan, N., (2012) A case study to estimate costs using neural networks and regression based models. Decision Science Letters, Vol. 1, 1-10.
  18. Defersha, F. M., Salam, A., and Bhuiyan, N., (2012) A new approach for cost estimation using data envelopment analysis. International Journal of Industrial Engineering Computations, Vol. 3, 817-828.
  19. Salam, A., Defersha, F. M., Bhuiyan, N. F., and Chen, M., (2012) A Case Study on Target Cost Estimation using Genetic Algorithm Trained and Back-Propagation Trained Neural Networks. Journal of Cost Analysis and Parametric , Vol. 5, 87-97.
  20. Salam, A. M., Bandaly, D. and Defersha, F. M., (2011). Optimizing the Design of a Supply Chain Network with Economies of Scale using Mixed Integer Programming. International Journal of Operations Research Vol. 10, No. 4, 398 -415.
  21. Defersha, F.M., and Chen, M., (2011). A Genetic Algorithm for One-Job M-Machine Flowshop Lot Streaming with Variable Sublots. International Journal of Operations Research Vol. 10, No. 4, 458 -468.
  22. Herrn, A., Defersha, F. M., Chen, M., and Jess M.de la Cruz J. M., 2011. An integrated multi-period planning of the production and transportation of multiple petroleum products in a single pipeline system. International Journal of Industrial Engineering Computations, Vol. 2 No. 1, 19-44.
  23. Defersha, F. M., (2011). A Comprehensive Mathematical Model for Hybrid Flexible Flowshop Lot Streaming Problem. International Journal of Industrial Engineering Computations Vol. 2 No. 2, 283-294.
  24. Defersha, F. M., and Chen, M., (2010). A Parallel Genetic Algorithm for a Flexible Job Shop Scheduling with Sequence Dependent Setups. International Journal of Advanced Manufacturing Technology, Vol. 49, 263-279. (click here to read)
  25. Defersha, F. M., and Chen, M.Y., (2010). A Hybrid Genetic Algorithm for Flowshop Lot Streaming with Setups and Variable Sublots. International Journal Production Research, Vol. 48, No. 6, 1705 -1726.
  26. Khataie, A., Defersha, F. M., and Bulgak, A. A.,(2010) A multi-objective optimization approach for order management: Incorporating Activity-Based Costing in supply chains. International Journal of Production Research Vol. 48, 5007 5020.
  27. Defersha, F. M., and Chen, M., (2009) A Simulated Annealing Algorithm for Dynamic System Reconfiguration and Production Planning in Cellular Manufacturing. A special issue in Reconfigurable Manufacturing Systems: Concepts, Technologies and Applications in the International Journal of Manufacturing Technology and Management Vol. 17, 103-124
  28. Cao, D., Defersha, F. M., and Chen M.,(2009) Grouping Operations in Cellular Manufacturing Considering Alternative Routings and the Impact of Run Length Product Quality. International Journal of Production Research on Vol. 47, No. 4, 989-1013.
  29. Defersha, F. M., and Chen, M., (2008) A Parallel Multiple Markov Chain Simulated Annealing for Multi-Period Manufacturing Cell Formation Problems. International Journal of Advanced Manufacturing Technology Vol. 37, No. 1-2, 140-156 (clik here to read)
  30. Defersha, F. M., and Chen, M., (2008) A Linear Programming Embedded Genetic Algorithm for an Integrated Dynamic Cell Formation and Lot Sizing Considering Product Quality. European Journal of Operational Research Vol. 187, 46-69 Download PDF
  31. Defersha, F. M., and Chen, M., (2008) A Parallel Genetic Algorithm for Dynamic Cell Formation in Cellular Manufacturing Systems. International Journal of Production Research Vol. 46, 6389– 6413 Download PDF
  32. Hu, B., Chen, M., and Defersha, F. M., (2007). An Integrated Method for Multi-Objective Cell Formation in Cellular Manufacturing Systems. International Journal of Manufacturing Technology Management. Vol. 11, No. 3/4, 355–372
  33. Defersha, F. M., and Chen, M., (2006). Machine Cell Formation Using a Mathematical Model and a Genetic Algorithm Based Heuristic. International Journal of Production Research. Vol. 44, No. 12, 2421–2444 Download PDF
  34. Defersha, F. M., and Chen, M., (2006). A Comprehensive Mathematical Model for the Design of Cellular Manufacturing System. International Journal of Production Economics. Vol. 103, No. 2, 767-783 Download PDF

Refreed Conferece Proceedings (total of 15)

  1. Wisam Al-Wajidi, Deiab, I., and \underline{Defersha}, F. M., (2018). The effect of Minimum Quantity Lubrication on the FSW Process, CSME International Congress 2018, May 27-30, 2018, Toronto, CANADA.
  2. Wisam Al-Wajidi, Deiab, I., and Defersha, F. M., (2017). Modeling and Optimization of Submerged Friction Stir Welding of AA 2219-T6 Alloy, March 23 to 24, Ottawa, CANADA.
  3. Shafigh, F., Defersha, F. M., and Moussa, S.E., (2014). A Comprehensive model for the design of distributed layouts in manufacturing systems. IIE Conference and Expo 2014, Industrial and Systems Engineering Research Sessions, May 31 to June 03, Montreal, QC. CANADA.
  4. Zarrinbakhsh, N., Defersha, F.M., Mohanty, A.K., and Misra. M., (2013). A Factorial Design of Distillers’ Grains Based Biocomposites: A path to stainability of corn ethanol. In the proceedisng of the 19th International Conference on Composite Materials, July 28 -August 2, 2013, Montreal, QC. CANADA.
  5. Defersha, F.M., Salam, A., and Bhuiyan, N., (2011). Product Cost Estimation Using Supper Efficiency Data Envelopment Analysis. In the IEEE 2011 International Conference on Uncertainty Reasoning and Knowledge Engineering, Bali,4-7 Aug. 2011. (DOI: 10.1109/URKE.2011.6007797)
  6. Salam, A., Defersha, F.M., Bhuiyan, N., and Chen, M., 2010. A Case Study on Target Cost Estimation using a Genetic Algorithm and a Back-Propagation Based Neural Network in the proceeding of the International conference on engineering systems, March 30 -April 1, 2010, American University of Sharjah, United Arab Emirates.
  7. Defersha, F.M., and Chen, M., (2009). A Coarse-Grain Parallel Genetic Algorithm for Flexible Job-Shop Scheduling with Lot Streaming. In the 12th IEEE International Conference on Computational Science and Engineering (CSE-09) August 29-31, Vancouver, Canada
  8. Defersha F.M., Chen, M., and Bulgak, A.A., 2009, A Production Planning Model for a Hybrid Manufacturing-Remanufacturing System in Reverse Logistics, Proceedings of the International Conference on Management Technology and Applications (ICMTA 2009), Beijing, China.
  9. Salam, A., Defersha, F. M., Muia, T. and Bhuiyan, N., (2009) Estimating Target Costs: A Case Study at Bombardier Aerospace. In the proceeding of the IIE Annual Conference and Expo 2009, May 30 -June 3, Miami, Florida, USA.
  10. Defersha, F. M., Gonzalez, H.A., Chen, M.Y., and Garcia, J.M., (2008). A Mathematical Model for an Integrated Multi-period Planning of the Production and Transportation of Multiple Petroleum Products in a Pipeline System. In the proceeding of the sixth annual international symposium on Supply Chain Management, October 15-17, 2008, Alberta, Calgary, Canada
  11. Khatie, A.H., Defersha, F.M., Bulgak, A.A., (2008), 2008, Maximizing Supply Chain Profits through Integration of the Residual Capacity, Proceedings of the Sixth Annual International Symposium on Supply Chain Management, Calgary, Alberta, Canada, October 15-17, 2008.
  12. Khatie, A.H., Defersha, F.M., Bulgak, A.A., (2008), Maximizing Supply Chain Profits With Effective Order Management, In the proceeding of the 28th National Operations Research and Industrial Engineering Congress (YAEM 2008 Conference), Istanbul Turkey, June 30-July 2, 2008.
  13. Koganti, R., Zaluzec, M. J., Chen, M., and Defersha, F.M., (2007), Design for Dis-Assembly: An AHP Approach for Automotive Front End Component Design and Evaluation. In the proceeding of SAE 2007 World Congress, Detroit, Michigan, USA, April 16-19, 2007
  14. Koganti, R., Zaluzec, M. J., Chen, M., and Defersha, F.M., (2006), Design for Integrated Assembly and Disassembly of Automotive Products, In the proceedings of SAE 2006 World Congress, Detroit, Michigan, USA, April 3-6, 2006
  15. Cao, D., Chen, M., and Defersha, F.M., (2005), Lot streaming and operation regrouping considering alternative process routes and production quality. In the proceeding of the International Conference on Production Research (ICPR) Salerno, Italy, July 31 -August 4, 2005

Abstract/Presentations (total of 14)

  1. Defersha, F. M. (2017) Research directions in manufacturing systems scheduling, an invited seminar talk at Dalhousie University, Department of Industrial Engineering, June 12, 2017, Halifax, NS, Canada.
  2. Defersha, F.M., and Majed Alzahrani, (2011). Pure flowshop vs hybrid flowshop scheduling with lot streaming. Abstract and presentation in the Annual Conference of the Canadian Operations Research Society. St. John’s, NL, Canada.
  3. Defersha, F.M., and Chen, M., (2008), Hybrid Flexible Flowshop Lot Streaming: A Mathematical Model and a Genetic Algorithm. CORS/Optimization Days Joint Conference, Quebec City, QC, CANADA, May 12 -14, 2008
  4. Defersha, F.M., and Chen, M., (2008), A Parallel Genetic Algorithm: A Computational Experience in Solving Manufacturing Cell Formation Problem. CORS/Optimization Days Joint Conference, Quebec City, QC, CANADA, May 12 -14, 2008
  5. Defersha, F.M., Ghasemi, M., and Chen, M., (2007), Multi-product lot streaming in a flow shop by considering buffered size and material handling equipment capacity constraints. Optimization Days 2007, Montreal, CANADA, May 7 -9, 2007
  6. Chen, M., and Defersha, F.M., (2006), A Multi-level Multi-item Capacitated Lot Sizing by considering the Impact of Run Length on Product Quality. CORS/Optimization Days Joint Conference, Montreal, CANADA, May 8 -10, 2006
  7. Chen, M., and Defersha, F.M., (2006), An Integrated Approach in the Design of Cellular Manufacturing and Production Planning for Dynamic Production Requirements. CORS/Optimization Days Joint Conference, Montreal, CANADA, May 8 -10, 2006
  8. Gonzlez, A. H., Garca, J. M., Defersha, F.M., and Chen, M., (2006), Planning of Petroleum Derivatives in Pipeline Transportation Systems using Genetic Algorithm. CORS/Optimization Days Joint Conference, Montreal, CANADA, May 8 -10, 2006
  9. Defersha, F.M., and Chen, M., (2005), A Coarse-Grained Parallel Genetic Algorithm for Cellular Manufacturing System Design. Optimization Days 2005, Montreal, CANADA, May 9 -11, 2005
  10. Defersha, F.M., and Chen, M., (2005), A Parallel Simulated Annealing Algorithm for Cellular Manufacturing System Design. 47th Annual Conference of the Canadian Operational Research Society, Halifax, CANADA, May 16 -18, 2005
  11. Hu, B., Chen, M., and Defersha, F.M., (2005), An Integrated Method for Cellular Manufacturing Systems Design and Operation. 17th Triennial Conference of the International Federation of Operational Research Societies, Honolulu, Hawaii, United States, July 11 -15, 2005
  12. Defersha, F.M., (2001), STATISTICAL QUALITY CONTROL: Usefulness and Implementation Strategies . (Presented in the Quality and Productivity Workshop organized by the Ethiopian Society of Mechanical Engineers)
  13. Defersha, F.M., (2001), Machine Cell Formation in the Design of Cellular Manufacturing Systems. (Published in the Journal of Ethiopian Society of Mechanical Engineers, Vol. III, No. 2, September 2001)
  14. Defersha, F.M., (2000), GROUP TECHNOLOGY: An Introduction and Applicability to Developing Nations. (Published in the Journal of Ethiopian Society of Mechanical Engineers, Vol. III, No. 1, September, 2000)