We investigate the impact of droplets of dense suspensions onto a solid substrate. We show that a global hydrodynamic balance is unable to predict the splash onset and propose to replace it by an energy balance at the level of the particles in the suspension. We experimentally verify that the resulting, particle-based Weber number gives a reliable, particle size and density dependent splash ons...

We present a method for simulation and visualization of a liquid splash motion. The proposed system is composed of a computational fluid dynamics and a polygon based renderer using multi texturing graphical acceleration. The system well supports the NavierStokes solver with adaptive time step and viscosity. The final liquid surface is obtained from the velocity field by rough estimation of the ...

T he Sunnyvale, Calif., campus of Sun Microsystems Inc. is a quiet and peaceful place with six low-rise buildings connected by tree-lined walkways. But the tranquility masks a frightening real-ity—Sun is in serious economic trouble. The company was badly splattered by the burst of the dot-com bubble of 2000. Revenues for this once towering colossus of the server industry went south, and its sto...

We exhibit smooth initial data for the two-dimensional (2D) water-wave equation for which we prove that smoothness of the interface breaks down in finite time. Moreover, we show a stability result together with numerical evidence that there exist solutions of the 2D water-wave equation that start from a graph, turn over, and collapse in a splash singularity (self-intersecting curve in one point...

rainfall erosion processes a long with the rainfall characteristics can be affected by soil properties. the study was conducted to investigate the susceptibility of the aggregates in different soil textures to the rainfall erosion processes. the experiment was done on thirty soil samples recognized in four soil textures with different replications as the completely randomized design. ninety box...

Thus, the most efficient way to find genes that have key regulatory functions in vertebrate development is Institute of Neuroscience 1254 University of Oregon to screen for them directly by looking for their mutant phenotypes during embryogenesis. Eugene, Oregon 97403–1254 Two groups have now completed the most extensive genetic screens ever carried out in a vertebrate to isolate mutations in g...