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Showing 1 to 13 of 13 for “"size separation"”.
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Optimum Processing of 1 mm by Zero Coal
Coal in the finer particle size ranges (below 1 mm) has always suffered from poor cleaning efficiencies. This problem has been exacerbated in recent years with the increased amount of high ash fines due to continuous mining machines and the mining of dirtier coal seams. In the present work, it is …
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Part I: Peptide Dendrimers From Natural Amino Acids. Part II: Nonfullerene Nanotubes From Bridged Dendritic Metalloporphyrin Complexes
… common organic solvents enabling their partial size separation by a preparative SEC. The SEC results in NMP suggested that the cross-linked oligomer 51 had an Mw of 83,790 Da (DP = 15), and the purified monomer-free cored out tube 53' had an Mw of 123,800 Da (DP = 25), using PS standards. As a …
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Evaluation of Methods for Improving Classifying Cyclone Performance
… mineral and coal processing plants are forced to size their particulate streams in order to maximize the efficiency of their unit operations. Classifiers are generally considered to be more practical than screens for fine sizing, but the separation efficiency decreases dramatically for particles …
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Impact of culture on stock market development and corporate governance
… indicators, which are: stock market activity, size, liquidity and concentration. Empirical results, using structural equation modelling (SEM), show that some cultural values have significant relationships with stock market development indicators. Power distance has a significant negative …
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Protein Preservation in Fossil Whale Bones of the Miocene/Pliocene Pisco Formation, Peru
… Chromatography (FPLC) for proteins/peptides size separation. The FPLC fractions were analyzed by Matrix-assisted Laser Desorption/ Ionization-Time of Flight (MALDI-TOF) for a more specific identification of the proteins/peptides sizes. Polyamide sheet Thin-Layer Chromatography was implemented …
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Size and chemistry selective membranes from block polymer templates
… in biology, medicine, electronics, and separations. The ability of block polymers to self assemble into ordered states on the nanometer level makes these materials suitable for applications that mandate structural order on this scale. By tuning the chemistry of these block domains, we …
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Capacitor-Probe Calibration and Optimization for NDE Application to Portland Cement Concrete
… connected to a Network Analyzer, with a specific separation between them. The second is to optimize the C-Probe design configuration for different PCC slab thicknesses. The third objective is to develop a predictive model that correlates the bulk dielectric constant of PCC with its critical …
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Analytik und präparative Trennungen liposomaler Systeme mit Zonen-Free-Flow Elektrophorese
Ziel dieser Arbeit war es, herauszufinden, inwieweit sich die Methode der Free-Flow Elektrophorese (FFE) dazu eignet, liposomale Systeme aufzutrennen. <br>Zwischen einzelnen Liposomen findet ein Lipidaustausch statt, d.h. Lipide wechseln ihren Aufenthaltsort zwischen zwei benachbarten Liposomen. …
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Preprocessing of Biomass Using Mechanical, Chemical and Microbial Techniques
… compared to previous literature. A mechanical size separation method was developed for switch grass to identify the heterogeneous fractions in bulk and the pretreatment and enzyme requirements were estimated for individual fractions using design of experiments. This study demonstrated that each …
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Synthesis and shape control of functionalized cadmium telluride nanoparticles
… were used to confirm the quality of the as-synthesized nanoparticles. All measurements were performed without any post preparative size separation of the nanoparticles. The dissertation comprises of four chapters. The first chapter is a brief description of the properties of nanomaterials and a …
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Development of Aerosolizable mRNA Incorporated Chitosan Nanoparticles for Efficient Lung Delivery
… were then characterized for their particle size, zeta potential, polydispersity index, and encapsulation efficiencies. The blank and mRNA-incorporated nanoparticles had an average particle size of 150nm and 212nm with 1.5 and 16.38 mv of zeta potential, followed by a poly dispersity index of …
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Development of methods for the detection of chemical and biological warfare agents
… sufficiently. In Chapter 5, we hypothesized that the separation of particles by size would enhance the ability to discriminate between different sources of a Bacillus anthracis surrogate. Size selection was combined with analytical techniques to enhance the capability of identifying …
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Large-Eddy Simulations of Hydrocyclones
… (LES) has been used to investigate the flow separation in multi-phase flow (gas, liquid, and solid) in a classifying hydrocyclone using the multi-fluid (Eulerian multi-fluid) model. The results of the CFD simulation are compared with the Hsieh [1] experimental data. The water phase is …