Modern Approaches for the Human Activity Detection and Recognition Using Various Image Processing Methods: A Review -- A Study of Covid-19 And Its Detection Methods Using Imaging Techniques -- Numerical Evaluation of 3D Printable Patch Antenna for Wearable Applications -- Ensuring Location Privacy in Crowdsensing System using Blockchain -- Energy Efficient Arithmetic State Machine Based Routing Algorithm in Cognitive Wireless Sensor Network -- Design of Modified V-shaped Slot-loaded on Substrate Integrated Waveguide Antenna for Smart Healthcare Applications -- A Review on Deep Learning Algorithms for Diagnosis and Classification of Brain Tumor -- Fuzzy Enhanced Optimization Algorithm for Blockchain Mining -- Power Quality Improvement using Luo Converter Coupled Multilevel Inverter based Unified Power Flow Controller for Optimized Time Response -- Performance Analysis of Fiber-Optic DWDM System -- Comparison Energy Efficiency and Spectral Efficiency in Beamspace MIMO and Beamspace MIMO-NOMA System Model.