List of Articles power Open Access Article Abstract Page Full-Text 1 - An extended of multiple criteria data envelopment analysis models for ratio data Javad Gerami Open Access Article Abstract Page Full-Text 2 - Hierarchical Analysis Method Application in Prioritization of Power Plant with Renewable Energy in Iran-case study M. Lajevardi S.A. ZanjaniGhayur Open Access Article Abstract Page Full-Text 3 - Efficiency Analysis Based on Separating Hyperplanes for Improving Discrimination among DMUs M. Mohammadpour