-Evaluating the Radiation and Temperature Effect on Photovoltaic Systems, Sobhan Dorahaki, 1-6 -Machine model based Speed Estimation Schemes for Speed Encoderless Induction Motor Drives: A Survey, Mohan Krishna.S, Febin Daya.J.L, 7-17 -Numerical Investigation of Heat Transfer Enhancement in a Circular Tube with Rectangular Opened Rings, Arkan Altaie, Moayed R. Hasan, Farhan Lafta Rashid, 18-2…