Ph.D. in Industrial Engineering, New Mexico State University (2000)
Production system design and optimization
Facilities layout and design
Applied operations research
Supply chain management
Improving Efficiencies of a Health Care System, funded by the Visiting Nurse Association of Fox Valley
Development of an Engineering Technology Program for the University of Malaysia, funded by the University of Malaysia, Pahang
Ghrayeb, O., "A Bi-Criteria Optimization: Minimizing the Integral Value and Spread of the Fuzzy Makespan of JSSPs," Special Issue on "Soft Computing in Manufacturing Enterprise Systems,"Applied Soft Computing, Vol. 2, No. 3F, 2003, pp 197-210.
Ghrayeb, O., Phojanamongkolkij, N., and Finch, P.,"A mathematical model and heuristic procedure to schedule printed circuit packs on sequencers," International Journal of Production Research, Vol. 41, No.16, 2003, pp 3849-3860.
Phojanamongkolkij, N., Grabenstetter, D., and Ghrayeb, O.,"Scheduling Jobs to improveweightedon-time performance of a single machine," SME Journal of Manufacturing Systems, Vol. 22, No. 2, 2003, pp 148-156.
Ghrayeb, O., Phojanamongkolkij, N., Marcellus, R., and Zhao, W.,"A Practical framework to evaluate and select robots for assembly operations," Journal of Advanced ManufacturingSystems,Vol.3, No. 2, 2004, pp 1-17.
Ghrayeb, O. and Phojanamongkolkij, N.,"A study of optimizing the performance of genetic algorithms using design of experiments in job-shop scheduling application," International Journal of Industrial Engineering12(1), 35-42, 2005.
Phojanamongkolkij, N. and Ghrayeb, O.,"Batch size determination for wafer fabrication using genetic algorithms," Revista de Ingenieria Industrial (Journal of Industrial Engineering),Vol. 4, No. 1, 2005, pp 5-12.
Professional Associations and Honors
IIE Senior Member
Alpha Pi Mu, the Industrial Engineering Honor Society (since 1999)