List of Articles Flatness Open Access Article Abstract Page Full-Text 1 - Experimental Study on Surface Roughness and Flatness in Lapping of AISI 52100 Steel Masoud Farahnakian H. ُُShahrajabian Open Access Article Abstract Page Full-Text 2 - Stability Analysis and Control of DFIG Based Wind Turbine Using FBC Strategy Majid Tavoosi Bahador Fani Ehsan Adib Open Access Article Abstract Page Full-Text 3 - Application Flatness Technique for Intelligent Control of a New Electric Energy Source Mohsen Radan Open Access Article Abstract Page Full-Text 4 - A Novel Approach to Trace Time-Domain Trajectories of Power Systems in Multiple Time Scales Based Flatness Mohsen Radan Alireza Tvakoli Dinani