In this study, we investigate the viscoelasticity-induced migration of solid particles immerged in three-dimensional flow field created by rotation a Rushton turbine. At same time, propose scaling law for predicting characteristic particle time as function Weissenberg number. Particle image velocimetry is adopted to reconstruct velocity and deformation rate fields generated turbine both Newtoni...

In this work, steady-state droplet size distributions in a DN300 stirred batch vessel with Rushton turbine impeller are investigated using an insertion probe based on the telecentric transmitted light principle. High-resolution extracted from images convolutional neural network for image-analysis order to investigate influence of speed and phase fraction (up 50 vol.-%). addition, Sauter mean di...

seven caspian miniature horses, aged above two years, were used for this study. the skeleton of these horses were cleaned and prepared using appropriate techniques. the vertebral column was studied and photographed. the vertebral column in one of these horses showed variations in thoracic, lumbar and sacral region. the vertebral formola was c7, t19,l5,s6 and a pair of 19th rib was fused with th...

investigations were carried out on coal tailings by conventional cell and column flotation techniques. tests were conducted to assess processing coal tailings of alborz markazi coal washing plant in iran by column flotation. the effects of reagent type/dosage were investigated with conventional flotation and their results were used in the performance of column flotation. also the effects of the...

Column generation is an indispensable tool in computational optimization to solve a mathematical program by iteratively adding the variables of the model. Even though the method is simple in theory there are many algorithmic choices and we discuss the most common ones. Particular emphasis in put on the dual interpretation, relating column generation to Langrangian relaxation and cutting plane a...