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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 20 of 33 for “"product analysis"”.
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Degradation Product Analysis of Bismaleimide Composite
… allows for the identification of decomposition products by evolved gas analysis. This combination of thermogravimetric analysis (TGA) and evolved gas analysis by FTIR and MS yields complementary information regarding pyrolysis and oxidative degradation products. Based on the TGA-FTIR-MS results, …
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The role of thiols in nitric oxide donor chemistry: Studies using product analysis and a novel proteomics technique.
… in nitric oxide donor chemistry: Studies using product analysis and a novel proteomics technique.
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Studies on the electrochemical reduction and the photolysis of phenacyl 'onium salts and related compounds
… using polarography, coulometry, titrimetry and product analysis methods.
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Oxidation Mechanisms of Tetrahydrofolic Acid, Tetrahydrobiopterin and Related Compounds
… (tetrahydropterin), has been investigated by product analysis and kinetic methods using gas manometric and spectrophotometric techniques. The overall reaction is first order in tetrahydropterin and shows a combination of zero- and first order dependence on oxygen, the relative contributions of …
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Spectroscopy, Electrochemistry and Photochemistry of Phenylazonaphthalene Dyes
… four electron reduction process, where detailed product analysis showed that naphthyl and phenyl fragments of the dye are produced due to azo bond scission; similar results were observed for the other R-Span dyes. Dyes containing electron-donating R substituents are more resistant to reduction, …
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The Removal of Low Levels of Phenol by Activated Carbon in The Presence of Biological Activity
… amount through the use of adsorption isotherm analysis. The amount of bioregeneration was found to be related to the influent dissolved oxygen concentration. Transient organic load experiments showed that the presence of a bacterial population could affect the effluent concentrations resulting …
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An exploration of the process of reading to write used by good Spanish-as-a-foreign-language students
… in Spanish on such processes. In addition, a product analysis was conducted on the final written products. Stimulated-recall interview was used as the method for data collection process. The subjects also kept reading and writing logs for each task that were used to help stimulate recall of …
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Development of a model-based systems engineering architecture for an unmanned cargo spacecraft design
… system scope, context, internal description, products, inputs, outputs, enablers, and limiters. It then expands upon the system architecture development using Concept of Operations (ConOps), function breakdown, Functional Flow Block Diagrams (FFBD), function timeline, N2 diagrams, product …
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Hydrothermal processing of high-lipid biomass to fuels
… on Isochrysis sp., and T. Weissflogii. Chemical analysis was performed to give a detailed characterization of the products, including fatty acid conversion and oil yields. Product analysis was thorough enough to be used for simulation of the hydrothermal process. These results were used to fit a …
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The Mechanisms of Sulfur-Containing Metal Complexes as Uv-Stabilisers
… were investigated both by kinetic methods and product analysis. Two mechanisms were identified: the First is a radical trapping process involving the metal complex itself and the second is a Lewis acid catalysed destruction of hydroperoxides by a transformation product(s) of the metal complex …
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Design, construction and commissioning of a packed bed reactor system for methane to methanol conversion
… and oxygen mixtures. A method for complete product analysis of all carbon containing reaction products using gas chromatography with flame ionization detector in conjunction with an oxidizer-methanizer microreactor is developed which is capable of quantifying minor carbon containing reaction …
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Two-dimensional gas chromatography : a novel technique for iron low temperature Fischer-Tropsch selectivity studies
… a large variety of hydrocarbons and oxygenated products. Over the years many researchers have attempted to describe the full product spectrum (ranging from C1 to C100+) but due to the complexity of the product and shortcomings of certain analytical techniques (or equipment) most researchers were …
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The determination of drug stability by HPLC assay of degradation products.
… testing of following the decomposition by analysis of decomposition products. Conventional methods of drug stability testing are criticised and the limitations are shown to be largely a result of analysing for un-decomposed drug. Using simulated analytical results incorporating various …
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Metal Complex Photo-activators for the Time-Controlled, Photo-Oxidation of Polyolefins
… peroxide decomposition studies, and by product analysis. It is shown that the mechanism of action of these metal complexes involves both free radical scavenging and peroxide decomposition, but that the contribution of each to the overall mechanism is influenced by the nature of the metal …
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Formulation and Physical, Chemical and Sensory Analysis of a Novel Flaxseed-enriched Milk-based Beverage to Deliver Omega-3 Fatty Acids
… The majority of current omega-3 FA-fortified products include marine-derived omega-3 FA sources, often producing undesired flavors due to lipid oxidation. Little research regarding incorporation of alpha-linolenic acid in functional beverage formulation has been conducted. Alpha-linolenic acid …
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Methane partial oxidation over phthalocyanine catalyst
… to identify the mole fractions of reactants and products. System pressure is maintained at 50 psig. Experiments are run at 250, 275, 300, 325, 350, and 375 C. For each temperature, the feed molar ratio of CH_4/O_2 is varied from 0.5 to 5.0. Although reaction temperature is more than 200 C lower …
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Digital Chemical Engineering Across Scales and Domains: Case studies in electrochemistry, automated labs, and reticular materials
… data, and complement it with ultra-sensitive product analysis of high-current gas-diffusion electrodes to independently probe mechanistic complexity. Together, these approaches reveal complex branching behaviour and previously unreported multi-carbon products, refining our mechanistic picture …
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Fueling innovation and growth strategies with corporate venturing
… of a field study combined with a key literature analysis is presented, as well as information gathered from extensive personal and telephone interviews covering a variety of past and current players who use corporate venturing methods to fuel innovation and growth. A firm level analysis is made …
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An examination of biological phosphorus removal using bacterial counting and poly-β-hydroxybutyrate analysis in batch and continuous flow systems
… -Hydroxybutyrate - an internal substrate storage product) analysis by gas chromatography to supplement COD and acetate measurements. The results showed that Poly-P bacterial counts were significantly greater at a 5 day sludge age compared to a 10 day sludge age. It was noted from microscopic …
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Gas-Phase Formation of Environmentally Persistent Free Radicals from Thermal Degradation of Catechol, Hydroquinone, Phenols and Tobacco
… pyrolysis experiments. The precursors pyrolysis product analysis employing GC-MS revealed the formation of naphthalene, indenol, indene, benzofuran-2-methyl, indenone, fluorene, and acenaphthylene, thus giving additional evidence of the formation of both labile and potentially persistent free …
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