As a result of the high demand for clean and sustainable energy resources, increasing the rotor diameter and tower height is the trend of development to capture more energy from the wind. The long flexible blades are sensitive to any vibrations; therefore, the flutter analysis of wind turbine blades became highly required. A lot of research work has been dedicated to studying the flutter phenomena

The parametric design and optimization of the satellite composite laminated plates with conventional stacking sequence under static load. We create finite element code using MATLAB software to calculate the deformation of the composite satellite plate. The model has been created to study the effect of changing fiber orientation on the displacement of the composite satellite plate. The MATLAB code

A new design of interdigitated E-shaped metamaterial sensor has been proposed. The structure has been intensively studied using CST software and is optimized to achieve ultrahigh sensitivity at the Terahertz range. Two different structures of the E-shaped sensors have been proposed. Both structures are characterized by a high absorption level at their resonant peaks with an ultra-high sensitivity