List of Articles Open Access Article Abstract Page Full-Text 1 - A Review of Sensorless Control Methods for Induction Motor Drives Abdolreza Sadighmanesh Mohammad Rahimzadeh Open Access Article Abstract Page Full-Text 2 - Modelling of relation between large earthquakes and ionosphere electron density using GPS data Tohid malekzadeh Dilmaghani Open Access Article Abstract Page Full-Text 3 - An overview of mainframe operating systems and their applications in blockchain e-commerce mosa hajipoor Open Access Article Abstract Page Full-Text 4 - Friction System Simulation on Electro-Mechanic Systems Mohammad Esmaeil akbari Sajjad Atazadeh alireza mangouri sahand akbari Open Access Article Abstract Page Full-Text 5 - Power system stability control and voltage stabilization for a wind farm based on adaptive dynamic programming ali khodadadi Mohammad Esmaeil akbari Hosein Nasir Aghdam Open Access Article Abstract Page Full-Text 6 - The effect of inner ring radius on frequency and insertion loss of optical filters with ring resonator structure yagoob hasanzade Abdollah Alizadeh