Design and Implementation of Fractional Order PID Controller for Magnetic Levitation System Using Genetic Algorithm Based Optimization -- Spin Transfer Torque MRAM with Emerging Sensing Techniques -- Optimum Design of Controller Parameters for Automatic Generation Control Employing Hybrid Statistically Tracked Particle Swarm Optimization Algorithm -- A Comparative PWM Analysis of MMC -- An analytical study to evaluate the performance of PV configurations under partial shading conditions.