List of Articles Open Access Article Abstract Page Full-Text 1 - Robust supply chain coordination modeling: A revenue management perspective J Nazemi M Modarres Open Access Article Abstract Page Full-Text 2 - Performance evaluation and availability analysis of ammonia synthesis unit in a fertilizer plant S Kumar P.C Tewari Sunand Kumar Open Access Article Abstract Page Full-Text 3 - Multivariate process capability indices on the presence of priority for quality characteristics S Raissi Open Access Article Abstract Page Full-Text 4 - Study of the effects of varying colours on industrial illumi-nation, human working and production model B.L Salvi A Bhardwaj Open Access Article Abstract Page Full-Text 5 - A new heuristic approach to solve product mix problems in a multi-bottleneck system A.R Rashidi Komijan B Aryanezhad A Makui Open Access Article Abstract Page Full-Text 6 - Evaluation of scheduling solutions in parallel processing using DEA FDH model GH.R Amin M.S Hosseini Shirvani Open Access Article Abstract Page Full-Text 7 - Lexicographic goal programming approach for portfolio optimization H Babaei M Tootooni K Shahanaghi A Bakhsha Open Access Article Abstract Page Full-Text 8 - A mathematical model for optimization of strength of concrete: A case study for shear modulus of Rice Husk Ash Concrete O.S Ogah