Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"size-segregated"”.
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A DEM numerical modelling approach to simulating size segregation of media in a stirred mill and effects on grind characteristics
… In both traditional and stirred mills, single-sized grinding beads are used, along with multiple passes through the mills, to achieve a sufficient size-reduction ratio. It is plausible to expand the size reduction capabilities of a mill using multiple-sized grinding beads in the mill. For this …
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SET-UP OF INNOVATIVE EXPERIMENTAL METODOLOGIES FOR THE ATMOSPHERIC AEROSOL CHARACTERISATION AND SOURCE APPORTIONMENT
… be considered that the higher is the time- and size-resolution, the more detailed can be the information obtained; moreover, the identification of suitable source tracers plays a key role for the identification and quantification of aerosol sources. In this PhD thesis, three main experimental …
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Characterization of aerosols in an underground mine
… the source and improve removal technology. Size-segregated sampling was conducted in two phases of underground experiments. Scanning transmission electron microscopy and fast mobility particle sizers were used to determine the size distribution of agglomerates based on particle mobility and …
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Speciated Local Aerosol Characteristics and Radiative Forcing at a Rural Midwestern Site
… and the resulting direct radiative forcing. Size-segregated aerosol samples were collected during the summer of 1997 using three parallel MOUDIs operating at ambient relative humidity. Two sample sets were used to obtain sulfate, organic carbon (OC), elemental carbon (EC), carbonate and total …
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EXPLOITING ADVANCED ATMOSPHERIC AEROSOL CHARACTERISATION TO DEVELOP CUTTING-EDGE APPROACHES FOR SOURCE APPORTIONMENT
… due to the huge variety of emission sources, size distributions, chemical properties, and transformation processes. Although the characterisation of atmospheric aerosols is still challenging, their study is essential since they have different impacts both at global and local scales. Among the …
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Variations of the chemical characteristics and source regions of aerosols at the Cape Point GAW station
… systems (tall-tower PM10 and ground-based sizesegregated). Furthermore, the installation and testing of a sector-controlled sampling system designed to reduce continental influence on samples is evaluated. Air mass back trajectories and radon (222Rn) concentrations were used to classify the …