Dr.Alex Ruiz-Torres
Recent Publications
Published Papers - Academic Journals
Ruiz-Torres, A.J., Mendoza Andrade, Abraham, and Ablanedo-Rosas, J.H., Modelo para la planificación en la cadena de suministro: selección y asignación a proveedores en el caso de lotes fijos, Ingeniería y Desarrollo (forthcoming).
Ruiz-Torres, A.J., Ablanedo-Rosas, J.H., and Ayala-Cruz, J. (2012). Modelo de asignación de compras a proveedores considerando su flexibilidad y probabilidad de incumplimiento en la entrega. Estudios Gerenciales, 28(122), 29-48.
Ruiz-Torres, A.J., Ablanedo-Rosas, J.H., and Ho, J.C. (2012). The parallel machine scheduling problem with variable demand and pre-defined lot size, International Journal of Operational Research, 14(1), 1-30.
Ruiz-Torres, A.J., Ablanedo-Rosas, J.H., and Otero, L.D. (2012) Scheduling with multiple tasks per job the case of quality control laboratories in the pharmaceutical industry, International Journal of Production Research. 50(3), 691-705. ISI Impact Factor: 2011: 1.115, ISI 5-Year Impact Factor: 1.367.
Ruiz-Torres, A.J., Ho, J.C., Ablanedo-Rosas, J.H. (2011). Makespan and Workstation Utilization Minimization in a Flowshop with Operations Flexibility, OMEGA the International Journal of Management Science, 39 (3), 273-282. ISI Impact Factor: 2010: 3.467, ISI 5-Year Impact Factor: 3.733.
Ruiz Torres, A. J., Ablanedo Rosas, J. H., Ho, J. C. (2010). Minimizing the Number of Tardy Jobs in the Flowshop Problem with Operation and Resource Flexibility. Computers & Operations Research, 37(2), 282-291. ISI Impact Factor: 2009: 2.116, ISI 5-Year Impact Factor: 2.443.
A reliability, Maintainability, and Safety Model to Support The Assessment of Space Vehicles
Ablanedo-Rosas, J.H., and Ruiz-Torres A.J. (2009). Benchmarking of Mexican Ports with Data Envelopment Analysis. International Journal of Shipping and Transport Logistics. ISI Impact Factor: 2010: 1.000, (3), 276-294.
Ruiz Torres, A. J., Centeno, G. (2008). Minimizing the Number of Late Jobs for the Permutation Flowshop Problem with Secondary Resources. Computers and Operations Research, 35(4), 1227-1249. ISI Journal Qualaity Ranking=1.366
Ruiz Torres, A. J., Mahmoodi, F. (2008). Outsourcing Decisions in Manufacturing Supply Chains Considering Production Failure and Operating Costs. International Journal of Supply Chain Management, 4(2), 141-158.
Ruiz Torres, A. J., Santiago, P. (2007). Inventory Models Considering Post-Production Holding Time and Cost. International Journal of Operations Research, 4 – 4, 220-229.
Ruiz Torres, A. J., Lopez, F., Ho, J. C. (2007). Scheduling Uniform Parallel Machines Subject to a Secondary Resource to Minimize the Number of Tardy Jobs. European Journal of Operations Research, 179(2), 302-315. ISI Journal Quality Rating=1.627
Ruiz-Torres, A.J., Centeno G. (2007). Scheduling with Flexible Resources in Parallel Workcenters to Minimize Maximum Completion Time. Computers and Operations Research, 34, 48-69. ISI Journal Quality Rating=1.627
Ruiz-Torres, A. J., Mahmoodi, F. (2007). The Optimal Number of Suppliers Considering the Costs of Individual Supplier Failures. OMEGA, 35, 104-115. ISI Journal Quality Rating=2.175.
Ruiz-Torres, A.J., Mahmoodi F. (2006). A Supplier Allocation Model Considering Delivery Failure, Maintenance and Supplier Cycle Costs. International Journal of Production Economics, 103, 755-766. ISI Journal Quality Rating=2.026
Ruiz-Torres, A.J., J. C. Ho, Lopez F. (2006). Generating Pareto Schedules with Outsource and Internal Parallel Resources. International Journal of Production Economics, 103, 810-825.ISI Journal Quality Rating=2.026
Ruiz-Torres, A. J., E. Zapata, K. Nakatani, and M. Cowen. (2006), ‘Knowledge based representation and operations assessment of space transportation system architectures’. Knowledge Based Systems, 19, 516-523.
Ruiz-Torres, A. J., E. Zapata, Cowen, M. (2006). Modeling of Turnaround Operations for Next Generation Space Transportation Architectures. International Journal of Industrial Engineering, 13(1), 18-27.
Conference Proceedings
Matus, J.F., Ablanedo-Rosas, J. H., Gemoets, L.A., and Ruiz-Torres, A.J. Cross evaluation of the ICT-Development Index, Proceedings of the 43rd Annual Meeting Conference, Decision Sciences Institute, San Francisco, California, November 17-20, 2012.
Ruiz-Torres, A., Ablanedo-Rosas, J., and Otero, D. Scheduling with Multiple Tasks per Job the Case of Quality Control Laboratories in the Pharmaceutical Industry, Proceedings of the forty-second Annual Conference of the Italian Operational Research Society (AIRO 2011 Conference),Brescia, Italy, September 6-9, 2011.
Ruiz-Torres, A.J., Ho, J.C., Ablanedo-Rosas, J.H. Minimizing Makespan and Workstation Utilization in a Flowshop with Operations Flexibility, Proceedings of the 2011 Northeast Decision Sciences Institute Conference, Montréal, Canada, April 14-16, 2011.
Ruiz-Torres, A.J., F. Lopez, and J. C. Ho, (2006), Minimizing Average Tardiness and Machine Outsource Costs. Proceedings of the 41st Annual Conference of the Operational Research Society of New Zealand. Christchurch New Zealand. 293-302.
Ruiz-Torres, A.J., C. McCleskey, K. Nakatani, A. Pennathur, R. Rhodes, E. Zapata, Zhang, J. (2006). Reliability Based Assessment Models for Space Vehicles. Proceedings of the 41st Annual Conference of the Operational Research Society of New Zealand. 205-213.
Ruiz-Torres, A.J., Lopez F.J. (2005). Analysis of Alternative Evaluation Methods for Multicriteria Problems. Proceedings of the 34th Annual Meeting of the Western Decision Sciences Institute, Vancouver, B.C.
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