Tesis sobre el tema "Magnetic and spectroscopic investigations"
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Sharma, Manju. "Magnetic and spectroscopic investigations of pristine and cation-substituted barium hexaferrites". Thesis, IIT Delhi, 2019. http://eprint.iitd.ac.in:80//handle/2074/8041.
Texto completoFischer, Håkon. "Magnetic and spectroscopic investigations of mineral transformations in mixed-valence oxides and magnesium silicates /". Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17774.
Texto completoZhang, Rui. "Nuclear Magnetic Resonance Spectroscopic and Computational Investigations of Chloroperoxidase Catalyzed Regio- and Enantio-Selective Transformations". FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/855.
Texto completoParamananthan, Navaneethan. "Investigations of brain perturbation by magnetic resonance spectroscopy". Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282328.
Texto completoWorthington, Lara Angharad. "Investigation of compressed-sensing for acceleration of magnetic resonance spectroscopic imaging". Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/6128/.
Texto completoRechkemmer, Yvonne [Verfasser] y Joris van [Akademischer Betreuer] Slageren. "Spectroscopic investigations of the magnetic anisotropy of lanthanide- and cobalt-based molecular nanomagnets / Yvonne Rechkemmer ; Betreuer: Joris van Slageren". Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2016. http://d-nb.info/1118369777/34.
Texto completoWang, Yue. "Investigations of RNA pseudoknot structures and dynamics by nuclear magnetic resonance spectroscopy /". Full text (PDF) from UMI/Dissertation Abstracts International, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p9992935.
Texto completoThomas, Elizabeth Louise. "Investigations of lipid metabolism by #in vivo' 13C magnetic resonance spectroscopy". Thesis, Queen Mary, University of London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363063.
Texto completoGrunhut, J., G. Wade, J. Sundqvist, A. ud-Doula, C. Neiner, Richard Ignace, W. Marcolino et al. "Investigating the Spectroscopic, Magnetic and Circumstellar Variability of the O9 Subgiant Star HD 57682". Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etsu-works/6236.
Texto completoKhokhar, Shahan. "Chemical Investigations of Australian Marine Sponges Using Experimental and Theoretical NMR Spectroscopy". Thesis, Griffith University, 2015. http://hdl.handle.net/10072/367252.
Texto completoThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Natural Sciences
Science, Environment, Engineering and Technology
Full Text
Karthik, G. "Investigations Of Spin-Dynamics And Steady-States Under Coherent And Relaxation Processes In Nuclear Magnetic Resonance Spectroscopy". Thesis, Indian Institute of Science, 2001. https://etd.iisc.ac.in/handle/2005/259.
Texto completoKarthik, G. "Investigations Of Spin-Dynamics And Steady-States Under Coherent And Relaxation Processes In Nuclear Magnetic Resonance Spectroscopy". Thesis, Indian Institute of Science, 2001. http://hdl.handle.net/2005/259.
Texto completoThornton, Sheila. "Investigations into the diving response of northern elephant seals (Mirounga angustirostris) using magnetic resonance imaging and spectroscopy". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0020/NQ56633.pdf.
Texto completoSiow, Bernard Marshall Chia Wang. "Investigating single- and intermolecular zero- quantum spectroscopic magnetic resonance imaging as a method for detection of superparamagnetic contrast agents". Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519477.
Texto completoZöllner, Helge [Verfasser] y Thomas [Gutachter] Heinzel. "Metabolic investigations in patients with hepatic encephalopathy by magnetic resonance imaging and spectroscopy / Helge Zöllner ; Gutachter: Thomas Heinzel". Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2020. http://d-nb.info/1203370008/34.
Texto completoGriffin, Joanna Louise. "Investigations of the metal fluoride transition state and ground state analogue complexes of HAD superfamily proteins by nuclear magnetic resonance spectroscopy". Thesis, University of Sheffield, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.574570.
Texto completoTurner, Jeffrey W. "High resolution nuclear magnetic resonance investigations of polymethylenic plant biopolymers structural determinations and post-depositional ammonia nitrogen incorporation /". Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1189438308.
Texto completoWegrzyk, Jennifer. "Wide-pulse, high-frequency electrical stimulation" in humans : Combined investigations of neural and muscular function using electrophysiological and nuclear magnetic resonance techniques". Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4080.
Texto completoConventional neuromuscular electrical stimulation (CONV) is delivered via surface electrodes at short pulse duration (< 400 μs), low frequencies (≤ 50 Hz) and high current intensities. The motor unit recruitment pattern of CONV, however, is different from the pattern of voluntary contractions (VOL) and leads to a hastened onset of muscle fatigue. The use of wide-pulses (1ms), high frequencies (100 Hz) (WPHF) and low current intensities might approach the natural activation pattern of VOL by enhancing the neural contribution to force production. Previous studies investigating WPHF reported progressive and unexpected force increments ("Extra Forces") despite a constant stimulation intensity which might reflect the more pronounced activation of sensory pathways within the central nervous system. The objective of this thesis was to investigate this "Extra Force" (EF) phenomenon and to evaluate the efficiency of WPHF (1 ms pulse duration at 100 Hz) in terms of metabolic demand and neural contribution to force production in comparison to CONV NMES (0.05 ms pulse duration at 25 Hz) and VOL. Our experiments comprised electrophysiological (EMG) and nuclear magnetic resonance techniques (31P spectroscopy of the muscle, functional imaging of the brain). The findings should be considered in future studies investigating the potential of NMES in a clinical context as a treatment for neuromuscular pathologies
Liu, Qiang. "Synthesis, characterization and investigation on the magnetic and electronic structure of strontium iron oxides". Thesis, Bordeaux 1, 2013. http://www.theses.fr/2013BOR14772/document.
Texto completoThe relationship of the crystallographic, magnetic, and electronic structure have long been of highinterest in research. Strontium iron oxides have structural, charge, spin, and orbital degrees offreedom, and thus give rich information to study for the condensed matter scientists. In this thesis,we have systematically studied the strontium iron oxides based on the freedom of the iron charge:Fe3+ and Fe4+ mixed valence compound SrFeO2,75 , Fe3+ compound Sr3Fe2O6 and SrFeO2,5 with differentcoordination around Fe3+ and Fe2+ compound SrFeO2. The synthesis of the polycrystalline compoundsare through either solid state reaction or sol-gel method. Single crystals of SrFeO2,75 and SrFeO2,5have been prepared by floating zone furnace. The purity of all the compounds is checked by lab x-raydiffraction and Mössbauer spectroscopy. Electronic structures have been studied by x-ray absorptionspectroscopy for all these compounds. Special efforts have been used to investigate the magneticstructure of SrFeO2,75 and Sr3Fe2O6
McKenna, Paul. "Spectroscopic investigations of C-nitrosocompounds". Thesis, Heriot-Watt University, 1986. http://hdl.handle.net/10399/1062.
Texto completoNichols, R. J. "Infrared spectroscopic investigations of electrocatalysis". Thesis, University of Southampton, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233925.
Texto completoBell, Andrew John. "Spectroscopic investigations of molecular dynamics". Thesis, University of Southampton, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280858.
Texto completoWoodruff, Nicholas D. "Investigation of protein structure and folding by NMR spectroscopy". Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302124.
Texto completoFriedrich, Frank. "Spectroscopic investigations of delaminated and intercalated phyllosilicates". Karlsruhe : Univ.-Verl, 2005. http://deposit.d-nb.de/cgi-bin/dokserv?idn=976439301.
Texto completoAnwar, M. "Spectroscopic investigations of amorphous complex dielectric materials". Thesis, Brunel University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234036.
Texto completoLawson, Michael Alan. "Spectroscopic investigations of thermally induced polyphosphazene decomposition". Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607701.
Texto completoSchmidt, Emily Ann. "Spectroscopic investigations of the beta-amyloid peptide". Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/5668.
Texto completoThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 14, 2009) Includes bibliographical references.
Lee, Joonsup. "Spectroscopic Investigations into Disease Diagnosis and Pathogensis". Thesis, The University of Sydney, 2013. http://hdl.handle.net/2123/10094.
Texto completoMeng, Jiqun J. "Line scan proton magnetic resonance spectroscopic imaging". Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36963.
Texto completoNewbury, Angela Lois. "An investigation into the applicability of NMR for cure monitoring of composites". Thesis, University of Plymouth, 1994. http://hdl.handle.net/10026.1/2005.
Texto completoCampbell, Susan Christina. "Pharmaceutical polymorphism : an investigation using solid-state nuclear magnetic resonance spectroscopy". Thesis, Durham University, 1998. http://etheses.dur.ac.uk/5021/.
Texto completoBrown, Stephen J. C. "Analytical investigations in magnetic recording". Thesis, University of Plymouth, 2003. http://hdl.handle.net/10026.1/2741.
Texto completoNorton, Lisa K. "Spectroscopic investigations of dendritic polymers as molecular containers". Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/6102.
Texto completoThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on September 22, 2008) Includes bibliographical references.
Knutson, Barbara Lynn. "Spectroscopic and kinetic investigations in supercritical fluid solutions". Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/11685.
Texto completoWittmann, Hermann Felix. "Spectroscopic investigations of platinum and palladium poly-ynes". Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319905.
Texto completoSnow, Mark Stephen. "Spectroscopic investigations of chiral and induced chiral interactions". Thesis, University of Oxford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.432277.
Texto completoBlaza, James Nicholas. "Spectroscopic investigations of catalysis by respiratory complex I". Thesis, University of Cambridge, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708587.
Texto completoJin, Yigang. "Spectroscopic investigations of new glass-ionomer dental cements". Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1535.
Texto completoTitle from document title page. Document formatted into pages; contains xii, 63 p. : ill. (some col.) Includes abstract. Includes bibliographical references.
Nagapudi, Karthik. "Solid-state NMR investigation of structure and dynamics of polyrotaxanes". Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/8638.
Texto completoWalton, Sarah Ann. "Mössbauer spectroscopic studies of novel nanophase magnetic systems". Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243255.
Texto completoCase, Simon. "Moessbauer spectroscopic and structural studies of magnetic multilayers". Thesis, University of Liverpool, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343621.
Texto completoChatnuntawech, Itthi. "Model-based reconstruction of magnetic resonance spectroscopic imaging". Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82376.
Texto completoCataloged from PDF version of thesis.
Includes bibliographical references (p. 77-80).
Magnetic resonance imaging (MRI) is a medical imaging technique that is used to obtain images of soft tissue throughout the body. Since its development in the 1970s, MRI has gained tremendous importance in clinical practice because it can produce high quality images of diagnostic value in an ever expanding range of applications from neuroimaging to body imaging to cancer. By far the dominant signal source in MRI is hydrogen nuclei in water. The presence of water at high concentration (-50M) in body tissue, combined with signal contrast modulation induced by the local environment of water molecules, accounts for the success of MRI as a medical imaging modality. As opposed to conventional MRI, which derives its signal from the water component, magnetic resonance spectroscopy (MRS) acquires the magnetic resonance signal from other chemical components, most frequently various metabolites in the brain, but also signals from tumors in breast and prostate. The spectroscopic signal arises from low concentration (-1 - 10mM) compounds, but in spite of the challenges posed by the resulting low signal-to-noise ratio (SNR), the development of MRS is motivated by the desire to directly observe signal sources other than water. The combination of MRS with spatial encoding is called magnetic resonance spectroscopic imaging (MRSI). MRSI captures not only the relative intensities of metabolite signals at each voxel, but also their spatial distributions. While MRSI has been proven to be clinically useful, it suffers from fundamental tradeoffs due to the inherently low SNR, such as long acquisition time and low spatial resolution. In this thesis, techniques that combine benefits from both model-based reconstruction methods and regularized reconstructions with prior knowledge are proposed and demonstrated for MRSI. These methods address constraints on acquisition time in MRSI by undersampling data during acquisition in combination with improved image reconstruction methods.
by Itthi Chatnuntawech.
S.M.
Gu, Meng. "High-speed volumetric ¹H magnetic resonance spectroscopic imaging /". May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
Texto completoXu, Jingwei. "Vibrational spectroscopic investigations of calcium phosphates and dental materials". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0021/NQ30421.pdf.
Texto completoPouillot, Frederic. "Thermodynamic and spectroscopic investigations of solid-supercritical fluid equilibrium". Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/11120.
Texto completoHardy, Sonja [Verfasser]. "Spectroscopic investigations of high pressure multiphase systems / Sonja Hardy". Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2014. http://d-nb.info/1049572645/34.
Texto completoFoxall, Peta Jane Dunckley. "High resolution NMR spectroscopic investigations into renal allograft function". Thesis, Birkbeck (University of London), 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488683.
Texto completoConlon, Elizabeth Sarah. "Spectroscopic investigations of hot stars in the galactic halo". Thesis, Queen's University Belfast, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335339.
Texto completoNicholls, Andrew William. "NMR spectroscopic and computational chemical investigations into drug reactivity". Thesis, Birkbeck (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244102.
Texto completoSo, Po Wah. "'1H NMR spectroscopic investigations into experimentally-induced hepatotoxic processes". Thesis, Birkbeck (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363065.
Texto completo