Impact of Different H/D Ratio on Axial Gas Holdup Measured by Four-Tips Optical Fiber Probe in Slurry Bubble Column. jcoeng [Internet]. 2016 Feb. 1 [cited 2024 May 2];22(2):42-55. Available from: https://joe.uobaghdad.edu.iq/index.php/main/article/view/256