Feasibility Study of Using X-ray Tube and GMDH for Measuring Volume Fractions of Annular and Stratified Regimes in Three-Phase Flows. - Gholam Hossein Roshani; Peshawa Jammal Muhammad Ali; Shivan Mohammed; Robert Hanus; Lokman Abdulkareem; Adnan Alhathal Alanezi; Ehsan Nazemi; Ehsan Eftekhari-Zadeh; El Mostafa Kalmoun (Symmetry, 2021)