Fine particle flotation in a centrifugal force field / Henricus Martinus Gerardus Clemens TilsInverse-design and optimization methods for centrifugal pump impellers / Remko Willem WestraInverse-design and optimization methods for centrifugal pump impellers / Remko Willem WestraCentrifugal effects in a weakly ionized rotating gas / [by] Matthias Martinus Boudewijn Wijnakker