Evaluation of α-Alumina Nanoparticles Prepared by Sol-Gel Method Studying the Effect of the Trailing Edge Blowing of NACA0018 Airfoil on the Aerodynamic Performance Simulation of the Effect of Soil Temperature on Earth - Air Heat Exchanger Behavior A Comprehensive Review for Swab and Surge Pressures in Oil Wells Mechanical Vibration Reduction of a Nonlinear Half-Car Model using Integral-Proportional Derivative (I-PD) Controller Simulation of Flow Around Circular Cylinders for Complex von Kármán Vortex Street Phenomenon Using SIMPLE, SIMPLEC and PISO Vibration Signal Analysis Under Varying Machine Speed Using Spectral Correlation Design and Implementation of an Upper Limb Prosthetic Hand Using a Pressure Sensor S-Box Design Utilizing 3D Chaotic Maps for Cryptographic Application Using PSO Algorithm to Find Optimal Number and Location by Connecting Distribution Generators to Improve the Iraqi 400 kV Super Grid The Impact of Soiling on Photovoltaic Performance in Iraq: Review Economic Losses from Flaring Gases in Rumaila Oil Field Analyzing Environmental Influences on New Structure of Solar Still Productivity: An Experimental Study in Basrah Iraq