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 8 of 8 for “"Geometric mean diameter"”.
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Comparison between the subsurface environment of brown trout (Salmo trutta) redd and nonredd sites in two North Carolina streams
… divided into three 10-cm layers for analysis. Geometric mean diameter, sorting coefficient, fredle index, percent fines <2.00 mm, and percent porosity were highly variable and averaged 11.8 mm, 2.8, 4.2, 17.0 percent, and 19.0 percent, respectively. No significant differences were found among …
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An Assessment of the Utility of a Non-Metric Digital Camera for Measuring Standing Trees
… characteristics about the stem. In this study diameters and heights were measured and used to estimate the volume of 20 red oak (Quercus spp.) stems ranging in diameter at breast height from 16 to over 60 cm and height from 12 to 20 meters. Images were taken from four orthogonal directions …
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Hydrocyclone fractionation of chickpea flour and measurement of physical and functional properties of flour and starch and protein fractions
… media, high inlet pressure resulted in smaller geometric mean diameter of particles collected in the overflow and underflow. Isopropyl alcohol as a medium resulted in particles with smaller geometric mean diameter than did deionized water. Starch and protein separation efficiencies were higher …
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Sub-grid process analysis of the sensitivity of black carbon aging to particle microphysical properties at emission
… the processed black carbon population, such as geometric mean diameter, hygroscopicity, and cloud condensation nuclei activity, to changes in local ambient conditions. The simulation results indicate that the evolution of the black carbon mixing state is most sensitive to the formation of …
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Characterisation of particulate matter originating from automotive occupant restraints
… duration of >900s. Characterisation of particle geometric mean diameter (GMD) and number concentration for airbag effluents showed that dominant particles were below 150nm in size, with smaller particles being emitted by hybrid airbags. Particle concentrations were also lower for hybrid airbags. …
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RADIO STUDY OF SUPERNOVA REMNANTS: UNDERSTANDING THE MISSING SUPERNOVA REMNANT PROBLEM
… on a sample of 390 SNRs, investigating their diameters, ages, spectral indices, Galactic heights, and spherical symmetries. The accuracy of distance estimation using the Σ-D relation was also examined. The average diameter of Galactic SNRs was determined to be 30.5 pc, with a standard error of …
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The production of a lyotropic liquid crystal coated powder precursor through twin screw extrusion.
… on dependent variables for example % torque, geometric mean diameter and work done for cohesion, and to quantitatively evaluate them. From the regression analysis data it was found that the coefficient of determination for all three dependent variables was in the range of 55-62%. The …
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Particle Charging and Classification: The Mass Mobility Aerosol Spectrometer (M2AS)
… data to power law functions of mobility diameter for both effective density and average charge. This experimental study highlights a key challenge in unipolar charger-CPMA systems: the inherent uncertainty in relating aerosol mass, charge, and mobility. To address this challenge, the …