List of Articles disturbance observer Open Access Article Abstract Page Full-Text 1 - Adaptive Non-singular Terminal Sliding Mode Control Based On Disturbance Observer for the Microelectromechanical Vibratory Gyroscope Contro M. R. Soltanpour Open Access Article Abstract Page Full-Text 2 - Design and Implementation of Model-Free Predictive Current and Speed Control of Surface Permanent Magnet Synchronous Motor using a Robust Nonlinear Disturbance Observer Against of Variation of Parameters and Disturbances Mohammad Bagher SepahKar Abolfazl Halvaei Niasar Open Access Article Abstract Page Full-Text 3 - Nonlinear Fractional Intelligent Controller for Photovoltaic Inverters Hadi Delavari Sara Arjmandpour