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 “"Fluoride-free"”.
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Crystallisation Behaviour and Heat Transfer Phenomenon of Fluoride-free Mould Fluxes for Steel Continuous Casting
… Most of the commercial mould fluxes contain fluorides to ensure high steel quality, but they also bring about environmental and health hazards due to the high volatility of fluorides. This project aims at understanding the relationship amongst chemical composition, crystallisation behaviour …
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Effect of Bottled Water and Fluoride Toothpaste Usage on Caries Lesion Remineralization
Background: The importance of fluoride in the prevention of dental caries has been well documented in the literature, as it inhibits demineralization of the tooth structure and enhances remineralization. One of the major public health policies to prevent caries is to provide the population with an …
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The Development of New Methods for the Introduction of a Vinyl Unit Using Silicon-Based Cross -Coupling Reactions
… and an electron-deficient alkenyl iodide under ""fluoride-free"" conditions. The second, fluoride-activated cross-coupling was explored."
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Palladium catalyzed cross-coupling reactions of allyl- and vinylsilanes
… studied. Moderate yields are obtained in the fluoride-free coupling with aryl iodides under mild conditions. When the cross-coupling reaction is conducted with aryl bromides poor yields of the desired product are obtained. The reactive silanolate species was discovered to dimerize to a …
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Molecular Probes for Biologically Important Molecules: A Study of Thiourea, Hydroxyl radical, Peroxynitrite and Hypochlorous acid
… studied using appropriate analytical techniques. Fluoride is an important species in human physiology. It strengthens teeth and gives protection against dental caries. However, elevated concentrations of fluoride in the body can lead to health problems such as dental and skeletal fluorosis. …