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Showing 1 to 6 of 6 for “"particle classes"”.
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Particle Class Balance for Apportioning Aerosol Mass
… as a powerful tool to characterize individual particles including various size parameters and major elemental composition in a short analysis time. To exploit CCSEM as a source apportionment receptor modeling technique, it is important to define the membership of each particle in a well defined …
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Characterisation of atmospheric single particles in industrial and regional background environments using aerosol time of flight mass spectrometry
The composition of atmospheric particles is an important factor in determining their impact on climate and health. In this study, an aerosol time-of-flight mass spectrometer (ATOFMS) was used to measure the chemical composition of ambient single particles at two contrasting locations – an …
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Modeling phosphorus transport in surface runoff from agricultural watersheds for nonpoint source pollution assessment
… of simulating the transport of individual particle classes in a sediment mixture during the overland flow process. The phosphorus model uses a nonequilibrium desorption equation to account for the desorption of phosphorus from the soil surface into surface runoff. The sediment-bound …
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Polarized Light Microscopy and Image Processing as a Near Real-time Monitoring Tool for Coal Mine Dust Monitoring
… health hazard, with complex and heterogeneous particle compositions that complicate exposure assessment. Despite regulatory advancements, the reemergence of severe lung diseases has underscored the limitations of conventional monitoring approaches. This dissertation addresses the critical need …
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Eulerian modelling and computational fluid dynamics simulation of mono and polydisperse fluidized suspension
… made up of a finite number of monodisperse particle classes; this clarifies the mathematical origin and physical meaning of the terms featuring in the equations and allows to attain a well-posed multiphase model. We then tackle the closure problem of the fluid-particle interaction force in …
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Development of Transitional Settling Regimen Parameters to Characterize and Optimize Solids-liquid Separation Performance
… (SOR). The technique named Intrinsic Settling Classes (ISC) was able to separate granules and floc by simulating high SOR values due to the lack of a flocculation time needed for granules. The method had to be performed in a discrete settling environment to characterize a range of flocculation …