List of Articles PID Open Access Article Abstract Page Full-Text 1 - Design and Implementation of an Optimized Controller by TLBO Algorithm on a Twin-Rotor System Mostafa Yazdani Khosro Khandani Open Access Article Abstract Page Full-Text 2 - Enhancing Yaw-Axis Attitude Control System of LEO Satellite Using Adaptive PID and Adjustable Gain Enhanced Fuzzy Logic Controllers Stanley Ajagba Udora Nwawelu Bonaventure Ekengwu Nnaemeka Asiegbu Dumtochukwu Oyeka Maryrose Ogbuka