Sökning: "chemical shift mapping"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden chemical shift mapping.

  1. 1. Separation of Water and Fat Signal in Magnetic Resonance Imaging Advances in Methods Based on Chemical Shift

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Johan Berglund; Uppsala universitet.; [2011]
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Magnetic resonance imaging; digital image reconstruction; chemical shift imaging; water and fat separation; Dixon method; fat suppression; quantitative MRI; whole-body MRI; fatty acid composition; fat unsaturation; triglycerides; adipose tissue; liver fat; T2* mapping; VETERINARY MEDICINE Radiology; VETERINÄRMEDICIN Radiologi; Radiology; Radiologi;

    Sammanfattning : Magnetic resonance imaging (MRI) is one of the most important diagnostic tools of modern healthcare. The signal in medical MRI predominantly originates from water and fat molecules. LÄS MER

  2. 2. NMR as a tool in drug research Structure elucidation of peptidomimetics and pilicide-chaperone complexes

    Detta är en avhandling från Umeå : Kemi

    Författare :Mattias Hedenström; Umeå universitet.; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; NMR; structure calculations; peptidomimetics; desmopressin; Leu-enkephalin; chemical shift mapping; pilicides; chaperones; urinary tract infections.; Organisk kemi; NATURAL SCIENCES Chemistry Organic chemistry; NATURVETENSKAP Kemi Organisk kemi; organisk kemi; Organic Chemistry;

    Sammanfattning : In the last decades NMR spectroscopy has become an invaluable tool both in academic research and in the pharmaceutical industry. This thesis describes applications of NMR spectroscopy in biomedicinal research for structure elucidation of biologically active peptides and peptidomimetics as well as in studies of ligand-protein interactions. LÄS MER

  3. 3. Analysis of Structure, Composition and Growth of Semiconductor Nanowires by Transmission Electron Microscopy

    Detta är en avhandling från Centre for Analysis and Synthesis

    Författare :Martin Ek; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Transmission electron microscopy; nanowires; III-V semiconductors; polarity; in-situ TEM;

    Sammanfattning : Nanowires have the potential to be a very flexible platform for the design of semiconductor devices. In nanowires it is possible to form crystal structures not found in the bulk materials under normal conditions, and to combine different III-V and group IV materials into axial or radial heterostructures. LÄS MER

  4. 4. Surface reactions in aqueous suspensions of fluorapatite and iron oxides

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Mathias Jarlbring; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry of Interfaces; Gränsytors kemi;

    Sammanfattning : The main objectives have been to study and model surface reactions of aqueous suspen-sions of minerals with relevance to the dephosphorization of iron oxides by reverse froth flotation. Synthetic hematite, maghemite and fluorapatite in colloidal forms were prepared and thoroughly characterized using XRD, SEM, BET, FT-IR and FT-Raman. LÄS MER

  5. 5. Studies of protein structure, dynamics and protein-ligand interactions using NMR spectroscopy

    Detta är en avhandling från Umeå : Medicinsk kemi och biofysik

    Författare :Tobias Tengel; Umeå universitet.; [2007]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 19F NMR; 2S albumin; PapD; protein-ligand interaction; structure; TFE; Yersinia; YopD; allergy; amphipathic helix; Ber e 1; Brazil nut; dynamics; FimC; LcrH; NMR screening; TECHNOLOGY Engineering physics Biophysics; TEKNIKVETENSKAP Teknisk fysik Biofysik;

    Sammanfattning : In the first part of the thesis, protein-ligand interactions were investigated using the chaperone LcrH, from Yersinia as target protein. The structure of a peptide encompassing the amphipathic domain (residue 278-300) of the protein YopD from Yersinia was determined by NMR in 40% TFE. LÄS MER