Results of joint reseach with ETHZ, Univeristy of Zurich and Columbia University regarding ultra-fast MRI measurement of bubble behavior and particle velocity are now accepted for publcation in Industrial & Engineering Chemistry Research and available online.
https://pubs.acs.org/doi/10.1021/acs.iecr.8b00932
"Real-Time Magnetic Resonance Imaging of Bubble Behavior and Particle Velocity in Fluidized Beds", Alexander Penn, Christopher Boyce, Thomas Kovar, Takuya Tsuji, Klaas Pruessmann & Christoph Müller, Industrial & Engineering Chemistry Research, DOI: 10.1021/acs.iecr.8b00932