Dissertations / Theses on the topic 'X-ray diffraction'
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Zora, J. A. "X-ray diffraction studies." Thesis, University of Sussex, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374467.
Full textHinrichsen, Bernd. "Two-dimensional X-ray powder diffraction." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-33946.
Full textGenetu, Teggen Linda. "Material identification using X-ray diffraction." Thesis, Mittuniversitetet, Institutionen för elektronikkonstruktion, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-37122.
Full textR, N. C. Maia Filipe. "Ultrafast Coherent X-ray Diffractive Nanoimaging." Doctoral thesis, Uppsala universitet, Molekylär biofysik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-122002.
Full textDicken, A. "Diffraction enhanced kinetic depth X-ray imaging." Thesis, Department of Engineering and Applied Science, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/8046.
Full textKegel, Ingo. "X-ray diffraction from semiconductor quantum dots." Diss., [S.l.] : [s.n.], 2000. http://edoc.ub.uni-muenchen.de/archive/00000330.
Full textEscudero, Adán Eduardo Carmelo. "High resolution X-ray single crystal diffraction." Doctoral thesis, Universitat Rovira i Virgili, 2018. http://hdl.handle.net/10803/586278.
Full textEsta tesis doctoral describe el uso de datos de alta resolución de difracción de rayos X de monocristal para la obtención de mapas experimentales detallados de distribución de densidad de carga. Estos mapas sirven para evidenciar experimentalmente la existencia de interacciones intra- e inter-moleculares débiles dentro de la estructura del cristal. Los mapas de densidad de carga se obtienen mediante un refinamiento multipolar de la estructura cristalina. En concreto, este trabajo se centra en evidenciar experimentalmente las interacciones atractivas no covalente recientemente descritas teóricamente y que dan lugar a la formación de enlaces de tipo "sigma y pi hole". Los términos enlaces de Triel, tetrel, pnictogen y chalcogen fueron recientemente introducidos para referirse a estas interacciones en función del grupo (14, 15 y 16) al que pertenece el átomo implicado como centro electrofílico. El hecho de que estas interacciones sean muy débiles hace necesario la obtención de mapas de densidad electrónica muy precisos. También se han utilizado estos mapas de densidad electrónica para determinar experimental el momento cuadrupolar y el potencial electrostático molecular de una serie de anillos de fenilo con diferentes sustituyentes. Los datos experimentales obtenidos de esta forma han servido para validar los resultados de cálculos teóricos.
radiación de molibdeno para asignar la configuración absoluta de una serie de moléculas orgánicas. Las moléculas medidas fueron seleccionadas teniendo en cuenta que el elemento más pesado de su composición química fuera el oxígeno. Es bien conocido que la dispersión anómala de este tipo de compuestos es muy débil y dificulta la asignación de configuración absoluta mediante esta técnica. El resultados de este trabajo demuestran que la metodología empleada es muy efectivo para poder asignar inequívocamente la configuración absoluta correcta en este tipo de moléculas. This thesis uses high resolution single crystal X-ray diffraction data in order to obtain experimental detailed charge density distribution maps that can exhibit intra and intermolecular interactions. The charge density maps are obtained through the multipolar refinement. Particularly, this work focuses in lasts classified non-covalent attractive interactions due to sigma and pi holes, triel, tetrel, pnictogen and chalcogen bonds. The weakness of these interactions make necessary very accurate and precise maps. In the same manner, in this works they have been determined the quadrupolar moment and the molecular electrostatic potential of a series of phenyl rings substituted with different chemical groups. The experimental data obtained in this way have been used to validate theoretical predictions. Eventually in this work, high resolution single crystal X-ray diffraction data using molybdenum radiation has been employed to assign the absolute configuration of a series of organic molecules. The measured molecules were selected containing oxygen as heaviest atom since the anomalous dispersion of these kind of compounds is very weak. The use of high resolution data has been proved to be effective in order to unequivocally assign the correct absolute configuration in this kind of molecules.
Anderoglu, Osman. "Residual stress measurement using X-ray diffraction." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1507.
Full textFalch, Thomas Løfsgaard. "3D Visualization of X-ray Diffraction Data." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18903.
Full textHe, Baoping. "X-ray diffraction from point-like imperfection." Diss., This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-09232008-144700/.
Full textDuke, Elizabeth Mary Helen. "X-ray diffraction studies on glycogen phosphorylase." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336092.
Full textKaracan, Ismail. "X-ray diffraction studies of aromatic fibres." Thesis, University of Leeds, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329219.
Full textHubbard, Steven Robert. "X-ray diffraction studies of crystalline DNA." Thesis, University of York, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259840.
Full textWelsh, Liam Christopher Oswin. "X-ray diffraction studies of filamentous bacteriophages." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.627349.
Full textNdieyira, Joseph Wafula. "X-ray diffraction studies of electrode surfaces." Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624193.
Full textPalma, Joseph John. "X-ray Diffraction Studies of Amorphous Materials." Diss., Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/231213.
Full textPh.D.
This thesis presents a study on two types of X-ray diffraction methodologies applied to the characterization of amorphous materials. The purpose of this study was to assess the feasibility of measuring the diffractive spectrum of amorphous materials by Energy-Dispersive X-ray Diffraction (EDXRD) utilizing Cadmium Zinc Telluride detectors. The total scattering intensity (coherent plus incoherent scatter) spectra precisely measured by high-energy Wide-Angle X-ray Scattering (WAXS) were compared to the EDXRD spectra to determine the level of agreement between the two techniques. The EDXRD spectra were constructed by applying a spectra fusing technique which combined the EDXRD spectra collected at different scattering angles rendering a continuous total scattering spectrum. The spectra fusing technique extended the momentum transfer range of the observed scattered spectrum beyond the limitations of the X-ray source and CZT detection efficiencies. Agreement between the WAXS and fused EDXRD spectra was achieved. In addition, this thesis presents the atomic pair correlation functions and coordination numbers of the first coordination shell for four hydrogen peroxide solutions of varying mass concentrations using Empirical Potential Structural Refinement (EPSR). The results are compared to the state-of-the art ad initio quantum mechanical charge field molecular dynamics (QMCF MD) model of the hydrogen peroxide in solution to support the model's predictions on why hydrogen peroxide is stable in water. The EPSR results using the coherent scattering intensity calculated from the WAXS data set predicts a hydration shell of 6.4 molecules of water surrounding hydrogen peroxide. The results also indicate that hydrogen peroxide is more likely to behave as a proton donor than acceptor. These findings are in agreement with QMCF MD model of aqueous hydrogen peroxide.
Temple University--Theses
Majumder, Bimal. "X-ray diffraction studies on liquid crystals." Thesis, University of North Bengal, 1988. http://hdl.handle.net/123456789/667.
Full textGorman, Martin Gerard. "X-ray diffraction studies of shock compressed bismuth using X-ray free electron lasers." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/25865.
Full textDicken, Anthony. "Diffraction enhanced kinetic depth effect X-ray imaging." Thesis, Cranfield University, 2011. http://dspace.lib.cranfield.ac.uk/handle/1826/8046.
Full textHeitner, Gabriele Heike. "Multiple scattering for diffraction enhanced X-ray imaging." [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976522632.
Full textWrålsen, Arnt Joakim. "X-ray diffraction studies of InAs/GaAs heterostructures." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elektronikk og telekommunikasjon, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18348.
Full textWalker, Christopher John. "X-ray diffraction of some technologically important surfaces." Thesis, University of Leicester, 2001. http://hdl.handle.net/2381/30655.
Full textMancuso, Adrian P. "Experimental phase retrieval using coherent x-ray diffraction /." Connect to thesis, 2005. http://eprints.unimelb.edu.au/archive/00001775.
Full textStewart, Alexander. "Reflections from muscle : an x-ray diffraction study." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334921.
Full textKhudheyer, F. Y. "Study of X-ray photoelectron diffraction in crystals." Thesis, Swansea University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637793.
Full textGriffiths, Jennifer Ann. "X-ray diffraction measurements for breast tissue analysis." Thesis, University College London (University of London), 2005. http://discovery.ucl.ac.uk/1444776/.
Full textDower, C. Siobhan. "X-ray diffraction by near-perfect crystalline surfaces." Thesis, University of Edinburgh, 1994. http://hdl.handle.net/1842/13707.
Full textTian, Yu. "X-ray Diffraction Analysis of with Hydrogen Interstitials." Thesis, Uppsala universitet, Materialfysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-353796.
Full textTimonen, T. (Tero). "X-ray diffraction studies of VO₂ thin films." Master's thesis, University of Oulu, 2014. http://jultika.oulu.fi/Record/nbnfioulu-201410281952.
Full textNorthey, Thomas. "Ab initio molecular diffraction." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/28772.
Full textFeng, Zhenxing 1982. "Experimental and theoretical investigation of the coherent x-ray propagation and diffraction." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101122.
Full textGeraki, Kalotina. "Differentiating normal and diseased breast tissue using X-ray fluorescence and energy dispersive X-ray diffraction." Thesis, City University London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274458.
Full textDavydok, Anton [Verfasser]. "X-ray diffraction analysis of InAs nanowires / Anton Davydok." Siegen : Universitätsbibliothek der Universität Siegen, 2013. http://d-nb.info/1044457511/34.
Full textBiermanns, Andreas [Verfasser]. "X-ray diffraction from single GaAs nanowires / Andreas Biermanns." Siegen : Universitätsbibliothek der Universität Siegen, 2012. http://d-nb.info/1029241376/34.
Full textMina, Golshan. "High-resolution X-ray diffraction studies of synthetic diamond." Thesis, Royal Holloway, University of London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271313.
Full textLings, Benjamin B. "Ultrafast X-ray diffraction : coherent phonons in bulk semiconductors." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.432286.
Full textBolz, Arne [Verfasser]. "X-Ray diffraction on InAs quantum dots / Arne Bolz." Aachen : Shaker, 2004. http://d-nb.info/1170529984/34.
Full textRajkumar, Ganeshalingam. "X-ray diffraction analysis and modelling of polycrystalline fibres." Thesis, Imperial College London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.487950.
Full textEvans, Shaun Russell. "High-pressure X-ray diffraction studies of light lanthanides." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/7827.
Full textGandy, Jonathan Gerard. "An x-ray diffraction study of frog skeletal muscle." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243265.
Full textHughes, David Stephen. "Polymorphs and solvates of sulfathiazole : X-ray diffraction studies." Thesis, University of Southampton, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398893.
Full textMao, B. W. "In-situ X-ray diffraction studies of electrochemical interfaces." Thesis, University of Southampton, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378678.
Full textLeake, S. J. "Coherent X-ray diffraction imaging of zinc oxide crystals." Thesis, University College London (University of London), 2010. http://discovery.ucl.ac.uk/19345/.
Full textHughes, Darren John. "X-ray fibre diffraction studies on synthetic DNA analogues." Thesis, Keele University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318160.
Full textHarlow, G. S. "Surface X-ray diffraction studies of the electrochemical interface." Thesis, University of Liverpool, 2016. http://livrepository.liverpool.ac.uk/3003643/.
Full textKrause, Lennard. "Assessment of Single Crystal X-ray Diffraction Data Quality." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://hdl.handle.net/11858/00-1735-0000-0023-3DD4-A.
Full textWu, Chang-Hong. "X-ray diffraction study of aged copper beryllium alloys." Diss., This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-10022008-063043/.
Full textSinangil, Mehmet Selcuk. "Estimation of crystal size and inhomogeneous strain in polymers using single peak analysis." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/19096.
Full textNagpal, Akanksha. "Crystal Structures of Nitroalkane Oxidase: Insights into the Structural Basis for Substrate Specificity and the Catalytic Mechanism." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-07172005-152826/.
Full textDr. Allen M. Orville, Committee Chair ; Dr. Loren D. Williams, Committee Member ; Dr. Donald F. Doyle, Committee Member ; Dr. Dale E. Edmondson, Committee Member ; Dr. Giovanni Gadda, Committee Member.
Brooks-Bartlett, Jonathan C. "Quantifying radiation damage in X-ray diffraction experiments in structural biology." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:2f311eea-82bc-4200-846c-068ae26599ea.
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