The emphasis of this review is to discuss three peculiar phenomena bubbles rising in viscoelastic fluids, namely, the formation a cusp, negative wake, and velocity jump discontinuity, highlight possible future directions subject. mechanism influencing factors these have been discussed detail review. evolution bubble shape mainly related viscoelasticity fluid. However, mechanisms two-dimensional...

Why is this topic of house price indexes important? The Global Financial Crisis has several causes but a main cause was a housing bubble in the U.S. which led banks to make mortgage loans that were based on the assumption that house prices were not rising unusually quickly. If accurate regional house price indexes for the U.S. would have been widely available to the public, it is unlikely that ...

The gas transfer in aeration systems is broken into two processes: gas transfer at the bubble interface and gas transfer at the water surface. Experiments were conducted to separate these two sources of dissolved gas. Oxygen absorption was measured in a laboratory tank with air being diffused through a porous diffuser and then with nitrogen gas being diffused. The combination of these experimen...