List of Articles Open Access Article Abstract Page Full-Text 1 - An optimization technique for vendor selection with quantity discounts using Genetic Algorithm N Arunkumar L Karunamoorthy N Uma Makeshwaraa Open Access Article Abstract Page Full-Text 2 - Evaluating quantitative stock selection strategies in Tehran Stock Exchange A.M Kimiagari S Amini Open Access Article Abstract Page Full-Text 3 - Two optimal algorithms for finding bi-directional shortest path design problem in a block layout M Hamzeei R Zanjirani Farahani Open Access Article Abstract Page Full-Text 4 - Advanced operations research techniques for multi-constraint QoS routing in internet HK Arunkumar S Sivakumar Open Access Article Abstract Page Full-Text 5 - Multi-start simulated annealing for dynamic plant layout problem B Ashtiani M.B Aryanezhad B Farhang Moghaddam Open Access Article Abstract Page Full-Text 6 - The trim loss concentration in one-dimensional cutting stock problem (1D-CSP) by defining a virtual cost H Javanshir M Shadalooee Open Access Article Abstract Page Full-Text 7 - On the multivariate variation control chart R Noorossana S.M Seyedaliakbar Open Access Article Abstract Page Full-Text 8 - A new approach to determine efficient DMUs in DEA models using inverse optimization GH.R Amin