Sökning: "NMR probe"

Visar resultat 11 - 15 av 39 avhandlingar innehållade orden NMR probe.

  1. 11. Flow processing and gel formation for producing biopolymer drops with functional shapes and diffusion properties

    Författare :Bernhard Walther; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; drop deformation; 4-roll mill; biopolymer; agarose; shear; Kappa-carrageenan; elongation; microstructure; flow processing; drop-shaping; rheology; poly ethyleneglycol ; diffusion; gelatine; NMR; gel formation; TEM; flow channel;

    Sammanfattning : This thesis focuses on the development of novel processes which combine flow-induced drop deformation and simultaneous temperature-induced gel formation in order to create shaped biopolymer drops. The drops are functional in terms of rheology and diffusion properties, factors strongly influencing the consistency of food products and flavour or drug release. LÄS MER

  3. 12. NMR diffusometry studies of probe diffusion in micro and macro heterogeneous materials

    Författare :Patrik Jarvoll Dae; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER

  4. 13. Structural characterization of complex inorganic materials using solid-state NMR spectroscopy

    Författare :Hua Guo; Ulrich Häusserman; Sven Lidin; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; solid-state NMR; materials characterization; inorganic materials; Calcium phosphate cements; bone-substitution materials; Mixed-anion compounds; perovskite; Oxyhydride materials; Oxynitride materials; Barium titanate; Strontium vanadate; oorganisk kemi; Inorganic Chemistry;

    Sammanfattning : Over the past decades, advancements in technology have relied greatly on the development of new functional inorganic materials. Detailed structural characterization of these materials is key for the understanding and also prediction of chemical and physical properties. LÄS MER

  5. 14. New solid-state NMR methods for exciting and separating anisotropic interactions of spin I=1 nuclei

    Författare :Rihards Aleksis; Andrew Pell; Robert Schurko; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; solid-state NMR; quadrupolar; paramagnetic shifts; spinning solids; materials; Physical Chemistry; fysikalisk kemi;

    Sammanfattning : Solid-state NMR has become an essential tool for structural characterisation of materials, in particular systems with poor crystallinity and structural disorder. In recent years, a surge of interest has been observed for the study of paramagnetic systems, in which the interaction between nuclei and unpaired electrons allows to probe the electronic structure and properties of materials more directly. LÄS MER

  7. 15. Phase transitions in porous media studied by NMR

    Författare :Dulce Vargas-Florencia; Istvan Furo; Magnus Nydén; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : This Thesis presents studies of phase transitions ocurring in porous media. The investigated phase transitions include melting/crystallization, surface pre-melting and liquid-liquid phase separation of binary mixtures. LÄS MER