List of Articles Markov chain Open Access Article Abstract Page Full-Text 1 - An Economic Design of Combined Double Sampling and Variable Sample Size X ̅ Control Chart Saeed Khaki Niloufar Ghanbari Mir Mahdi Seyed Esfehani Open Access Article Abstract Page Full-Text 2 - Optimum Process Adjustment Under Inspection Errors with Considering the Cycle Time of Production and Two Markets for the Sale of Goods Somayeh Ayeen