Konrad Dense Phase Analysis – In his Ph.D. dissertation Konrad opened the door for a basic analysis of dense phase flow incorporating much of the field of solid mechanics to these conditions. Using the moving packed bed analogy he provided a basic understanding of dense phase conveying. This blend of fluid and solid mechanics was a step forward in attempting to required that one had to test each and every dense phase system in order to have systems that would function. Konrad (1984) incorporated some of the basic findings of Jenike in his analysis. One can note that the common terms developed by Jenike for bin and hopper are part of the models.