List of Articles Sahel Rabiee Article 1 - Analysis and Implementation of a New Method to Increase the Efficiency of Photovoltaic Cells by Applying a Dual Axis Sun Tracking System and Fresnel Lens Array 20.1001.1.24237361.2021.6.3.5.1 10.30495/jopn.2021.28531.1229 meraj rajaee Sahel Rabiee Journal of Optoelectronical Nanostructures , Issue 22 , Year , Autumn 2021