List of Articles Computational complexity Open Access Article Abstract Page Full-Text 1 - Computing the Optimal Solution of Technology Selection Model with Fuzzy Data Sahand Daneshvar Sahar Khoshfetrat Open Access Article Abstract Page Full-Text 2 - Converting RGB Images to Gray-Scale by the Weighted Average Method, based on Shift-and-Add Technique on the Combination of Color Components for Reducing the Computational Units and Errors in FPGA Mahdi Ajamin Hamednai Payam Sanaee