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 15 of 15 for “"Structure Solution"”.
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Structure Solution Using Precession Electron Diffraction and Diffraction Tomography
… of electron diffraction to the problem of structure solution. The technique of precession electron diffraction, in particular, is discussed as a method to improve the applicability of methods borrowed from X-ray crystallography to intensities measured from electron diffraction. Simulations …
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Zeolites to peptides: Statistical mechanics methods for structure solution and property evaluation
… in statistical mechanics are used to study structure and properties of zeolites and peptides. A Monte Carlo method is applied to solve structure of a newly synthesized zeolite. Understanding the structure of a zeolite could lead to optimization of chemical processes it is involved in. …
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An investigation into the synthesis, structural characterisation, thermal and polymorphic behaviour of organic crystalline materials
… such cases, the development and application of structure solution techniques via powder X-ray diffraction (pxrd) has played an ever increasing pivotal role. In this thesis a number of new multi-component materials; oxamic acid:nicotinamide, oxamic acid:isonicotinamide, fumaric acid:nicotinamide, …
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Structural characterization of the type II secretion system of Aeromonas hydrophila
… diffracted anisotropically to a maximum resolutions of 2 Å along the c axis and 3 Å in the a/b plane. Anisotropy in combination with twinning drastically complicated structure solution. Efforts toward elucidating the crystal structure will be discussed.
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A private equity structure to facilitate the effective post-commencement financing of business rescue
… forward a researched and suggested financial structure solution that combines two comparatively new concepts in South African corporate law, being business rescue from the Companies Act 71 of 2008 and the financing of venture capital companies in the Income Tax Act 58 of 1962. The outcome of …
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Co-crystallisation of α,ω-dicarboxylic acids with nicotinamide and isonicotinamide
… (SXRD). For azelaic acid : nicotinamide (1:1), structure solution was carried out using powder X-ray diffraction data and the direct space methods are applied through differential evolution (DE) approach. The crystal structure of adipic acid : nicotinamide (1:2) was solved using single crystal …
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Multinuclear Solid-State Nuclear Magnetic Resonance Spectroscopy of Microporous Materials
… properties of microporous materials and their structures. However, the structures of many microporous materials are determined from the more limited powder X-ray diffraction (XRD) data due to the lack of suitable single-crystals for XRD. In such cases, an unambiguous structure solution of …
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Synthesis, Structure and Properties of Mixed Metal Oxides: From Pyrochlores to Fluorites
… throughout this thesis are described. Synthesis, Structure and Transport Properties of Bi2Zr2-xTixO7 Phases: The characterisation of Bi2Zr2-xTixO7 compounds is reported for the first time. An increase in conductivity of 3 orders of magnitude is found for the Zr- rich end member. Bi2Ti2O7, which …
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Synthesis and Properties of New Oxychalcogenide Materials
… and their properties, particularly those with structures similar to systems discussed in the later chapters. Particular attention is paid to the structural and magnetic properties of La2O2Fe2OSe2-type materials, work on which is presented in chapters 3–5. These oxychalcogenides, along with …
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Enabling early stage drug discovery targeting high molecular mass penicillin-binding proteins in <i>Yersinia pestis</i>
… the past two decades has information about their structure started to emerge and the application of structure-based drug design against these proteins become possible. The aims of this project are provided detailing the proposed study of three HMM PBPs from Y. pestis (YpPBPs).Chapter two presents …
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Structural and ligand binding studies of toll-like receptor 4 (TLR4) associated proteins
… Thus, we determined the x-ray crystal structure of human CD14, the results of which were recently published (Kelley, S.L., et al., (2013). J. Immunol. 190:1304-1311) and are presented in Chapter 2 of this dissertation. To do so, we cloned, expressed, and purified two constructs of human …
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Design, synthesis, and structural elucidation of spiroligomers for targeted molecular recognition
… Building on our group’s earlier development of solution-phase spiroligomer anion receptors, this work advances structural validation by obtaining crystall structures for all stereoisomeric receptors and a high-affinity phosphate-bound complex. Together with previously acquired NMR titration …
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An in-situ synchrotron study of low positive and negative thermal expansion ceramics
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms