Ultrafine particle size distributions near freeways: Effects of differing wind directions on exposure

Particle Size Effects on Hydro-Cyclone Performance

The hydrocyclone has a very important roll in industrial separation. The consideration of its behavior is very important for design. In this investigation, behavior of water flow and particles trajectory inside a hydrocyclone has been considered by means of numerical and experimental methods, and results have been compared together. To have a numerical simulation, a CFD software was used, and f...

In-cabin commuter exposure to ultrafine particles on Los Angeles freeways.

Worldwide people are exposed to toxic ultrafine particles (UFP, with diameters (dp) less than 100 nm) and nanoparticles (NP, dp < 50 nm) under a variety of circumstances. To date, very limited information is available on human exposure to freshly emitted UFP and NP while traveling on major roads and freeways. We report in-cabin and outdoor measurements of particle number concentration and size ...

Application of Fractals and Kinetic Equation in Modelling Cluster and Ultrafine Particle Size Distributions

We briefly describe a model which seems to be applicable to a variety of coalescence growth systems. Spanning cluster growth, particle growth and hillockformation in thin metal f%ns, this model is based on the Smoluchowski kinetic equations and fractals. We describe how this model has been able to suggest the e$ect of translational to internal energy conversion in coalescing systems in determin...

Effects of barley grain particle size on dairy cow performance

effect of soil particle size distribution on wind erosion rate

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