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 20 of 478 for “"precious"”.
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A Precious View
… the city can be a contribution which inspires a Precious View.
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Every minute is precious
… the project in its entirety Every Minute is Precious - a name co-opted from a piece of writing exchanged for bowls and which encapsulates the contemporary dilemma of wanting to make the most of time but always being anxious that we are too busy to get everything we want done. However, the …
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Recovery of Precious Metals from Secondary Sources
The project aim is to develop recyclable systems based on ionic liquids (ILs) or deep eutectic solvents (DESs), in combination with ligands and/or oxidants, for the recovery of Pd and Pt from catalytic converters and of Au from electronics using non-toxic reagents. The synthesis of dione and …
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Bulk Metallic Glasses based on Precious Metals
[Restricted]
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New precious metal compounds in cancer therapy
Cisplatin is one of the most effective cancer medications currently available. However, it is seriously limited by patient toxicity and drug resistance. As such, there is a real need for altemative treatments. Some compounds of gold(l) have been found to be biologically active in various contexts, …
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DEVELOPMENT OF PRECIOUS METAL-FREE, LIGHT-ENABLED SYNTHETIC METHODOLOGIES
In recent years, there has been a growing interest in the development of more sustainable and eco-friendly methodologies in the field of organic synthesis. The use of light is particularly attractive not only because light is a traceless and abundant form of energy, but also because the absorption …
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Properties and applications of metastable precious metal intermetallic compounds
Precious metal alloys and compounds have myriad applications in the fast-expanding horizons of the commercial and industrial worlds. They are also fascinating topics for scientific research. These materials have a long history, with gold and silver amongst the very earliest metals used by humans. …
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Distribution of precious metals and geochemistry of lateritic ores
… and degrees of development were analyzed for precious metals, platinum, palladium, iridium and gold by radiochemical neutron-activation analysis. In addition, the distribution of major, minor and other trace constituents (iron, silicon, magnesium, nickel, cobalt, chromium, copper, manganese, …
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Translating Peking opera for the London stage: Lady Precious Stream
… performance in the English-speaking world. Lady Precious Stream, the first English-language production of Peking Opera on the London stage (1934) by a Chinese translator (S.I. Hsiung), serves as an extended case study in this regard. Through it, we analyse Hsiung’s strategies for negotiating the …
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‘Where life is precious’: Towards reproductive justice in information work
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Carbon monoxide-driven reductive organic transformations and precious metals recycling
… terms of selectivity toward rhodium versus other precious metals and results in metal recovery in the form of reduced metallic clusters. The method performs best on freshly reduced surfaces and can be promoted by the addition of tertiary amines. Besides CO gas, formic acid can also be used as a …
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SYNTHETIC AND MECHANISTIC STUDIES OF PRECIOUS METAL-MODIFIED TYROSINE KINASE INHIBITORS
… inhibitors with the adduct-forming properties of precious metal-based electrophiles (Au, Pt) in a hybrid molecule is a previously unexplored concept. To achieve this, thiourea-modified 3-chloro-4-fluoroanilino-quinazoline derivatives were first studied as epidermal growth factor receptor (EGFR) …
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Non-precious metal catalysts prepared by chemical functionalization of carbon surfaces.
… ongoing research towards the discovery of non-precious metal catalysts (NPMC) with activity comparable to that of Pt. The Fe-N/C catalyst system is a promising alternative, though the exact structure of the active catalytic site is still debated. Active catalysts are typically formed by high …
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The Development of Sustainable Hydrometallurgical Processes for the Recovery of Precious Metal
The study investigates the utilization of cedar wood bark as bioadsorbent for the adsorption and simultaneous precipitation of gold as flakes. This is with a view to establishing the electrochemical study of the adsorption and evaluate pre-treated cedar wood bark as possible adsorbent for gold in …
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Designing high performance overall water splitting electrocatalysts from non-precious metal selenides
… mediate and expedite the reaction process. Mixed precious iridium-ruthenium oxides have been investigated as promising electrocatalysts for the OER. Lately first row transition metal chalcogenides have experienced an improving attention for hydrogen evolution reaction (HER). Over the course of the …
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Manufacture and Characterization of Ionic Polymer Transducers Employing Non-Precious Metal Electrodes
Ionic polymer membranes are commonly used in fuel cell power generation, water electrolysis and desalinization, chlorine generation, and other niche applications. Since the early 1990s ionic polymer membranes have also shown promise as distributed electromechanical actuators and sensors. The cost …
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Film formation on precious metal surfaces in the presence of epoxy resins
The purpose of this study was to determine the effect of exposure conditions, resin composition, and resin treatment on film formation on metal surfaces exposed to epoxy resin. Epoxy rods were prepared from novolac hardened by 4-4' methylenedianiline (MDA). The curing and post curing temperatures …
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Non-Precious Metal-Based Electrocatalysts from Prussian Blue Analogues for Energy-Related Reaction
Developing efficient electrocatalysts for oxygen evolution reaction (OER), oxygen reduction reaction (ORR), hydrogen evolution reaction (HER) and biomass oxidation is of great significance for green and renewable energy technologies, such as metal-air batteries, fuel cells, hydrogen production and …
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