A Review of State of Art Techniques for 3D Human Activity Recognition System -- Comparative Analysis for Email Spam Detection Using Machine Learning Algorithms -- Post Quantum Cryptography: A Solution to the Challenges of Classical Encryption Algorithms -- A Survey on Performance Analysis of Different Architectures of AES Algorithm on FPGA -- Designing Adiabatic Techniques for Logic Circuits -- Accuracy and Performance of Heart Failure Prediction System by Using Back-propagation Network (BPN) -- Analysis and Implementation of Microsoft Azure Machine Learning Studio Services with respect to Machine Learning Algorithms -- Design and Analysis of Dual-band Compact Antenna for 5G Communication Applications -- Design and Analysis of Graphene based Meta- Surface Absorber for Temperature and Refractive Index Sensing in THz Spectrum -- Optimizing and Validating Performance of 40Gbps Optical System.