List of Articles Open Access Article Abstract Page Full-Text 1 - A New Hybrid Parallel Simulated Annealing Algorithm for Travelling Salesman Problem with Multiple Transporters parham azimi Ramtin Rooeinfar Hani Pourvaziri 20.1001.1.22519904.2014.7.15.1.1 Open Access Article Abstract Page Full-Text 2 - A Bi-objective Pre-emption Multi-mode Resource Constrained Project Scheduling Problem with due Dates in the Activities zahra Sadat Hosseini Javad Hassan pour Emad Roghanian 20.1001.1.22519904.2014.7.15.2.2 Open Access Article Abstract Page Full-Text 3 - The Effects of Grasp Conditions on Maximal Acceptable Combined Forces (pushing and pinch forces) for Manual Insertion of Snap Fasteners Hamed Salmanzadeh Kurt Landau 20.1001.1.22519904.2014.7.15.3.3 Open Access Article Abstract Page Full-Text 4 - A Bi-objective Optimization for Vendor Managed Inventory Model Amir Hossein Niknamfar Seyed Hamid Reza Pasandideh 20.1001.1.22519904.2014.7.15.4.4 Open Access Article Abstract Page Full-Text 5 - Exact Mixed Integer Programming for Integrated Scheduling and Process Planning in Flexible Environment Mohammad Saidi Mehrabad Saeed Zarghami 20.1001.1.22519904.2014.7.15.5.5 Open Access Article Abstract Page Full-Text 6 - Measuring and Analyzing the Bullwhip Effect in a Two-Product and Two Echelon Supply Chain Using Control Theory Approach Ahmad Sadeghi 20.1001.1.22519904.2014.7.15.6.6 Open Access Article Abstract Page Full-Text 7 - A Tunned-parameter Hybrid Algorithm for Dynamic Facility Layout Problem with Budget Constraint using GA and SAA Hani Pourvaziri Parham Azimi 20.1001.1.22519904.2014.7.15.7.7 Open Access Article Abstract Page Full-Text 8 - A Heuristic Algorithm for Nonlinear Lexicography Goal Programming with an Efficient Initial Solution Mahdi Bashiri Amir Hossein Parsa Manesh Hamid Hasanzadeh 20.1001.1.22519904.2014.7.15.8.8