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 “"Heavy fraction"”.
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Environmental and agronomic aspects of municipal solid waste heavy fraction used for turfgrass production
… in Blacksburg, Virginia, to evaluate the use of heavy fraction, a by-product of a solid waste separation process, as a soil amendment for production of turfgrass sod. In a field plot experiment using Kentucky bluegrass (<i>Poa pratensis L</i>.), measurements of sod strength taken 8.5 and 9.5 …
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Electrical and optical properties of novel phthalocyanine compounds for sensor devices.
… were performed on samples of sublimed heavy fraction rare-earth element, fluorochromium and lutetium bisphthalocyanine films. From the Arrhenius plot of ln(T) (where (T) is the conductivity at temperature T) it is found that two conduction regimes exist. The activation energy in the …
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Electrical and optical properties of novel phthalocyanine compouns for sensor devices
… were performed on samples of sublimed heavy fraction rare-earth element, fluorochromium and lutetium bisphthalocyanine films. From the Arrhenius plot of ln(T) (where (T) is the conductivity at temperature T) it is found that two conduction regimes exist. The activation energy in the …
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Sequestration and Characterization of Soil Organic Carbon for Shelterbelt Agroforestry Systems in Saskatchewan
… of SOC was characterized by using the density fraction technique to separate SOC into uncomplexed, plant-derived debris (i.e. light fraction) and mineral-associated organic matter (i.e. heavy fraction). Changes in SOC composition due to shelterbelt plantation were studied using attenuated total …
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Direct liquefaction of coal with coal-derived solvents to produce precursors for carbon products
… Technical Services, Inc. and split into three fractions, the original liquid (RACL), its heavy fraction (DACL-H), and its light fraction (DACL-L). The other two liquids were heavy creosote oil (HCO) and carbon black base #1 (CBB) from Koppers Industries, Inc. These liquids were used as …
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Characterization and Asphaltene Precipitation Modeling of Native and Reacted Crude Oils
… upstream processes. This approach requires mole fractions, molar volumes, and solubility parameters for the pseudo-components representing the crude oil mixture. The pseudo-components used in the RSM, based on a solubility fractionation method (modified ASTM D4124 technique), are namely …
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Nanoparticle - Heavy Metal Associations in Riverbed Sediments
… microscopy (aTEM) and asymmetric flow field flow fractionation (aFlFFF) coupled to both multi-angle laser light scattering (MALLS) and high resolution-inductively coupled plasma mass spectroscopy (HR-ICPMS). Riverbed sediment samples were taken from the Clark Fork River in Montana, USA where a …
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CO AND CO2 HYDROGENATION BY FISCHER TROPSCH SYNTHESIS PROMOTED WITH IRON BASED HETEROGENEOUS CATALYSIS: DATA COLLECTION AND PROCESS DESIGN
… selectivity toward liquid hydrocarbons (C5+ fraction, ~40–50 wt%), while maintaining low methane production (<5%). For instance, a hydrotalcite-derived Mg-Fe-Cu/K catalyst (denoted Fe30) achieved ~96% CO conversion at 300 °C, with ~40% selectivity to the heavy fraction and ~5% to methane. …