Sökning: "Fourier-transform infrared spectroscopy"

Visar resultat 11 - 15 av 100 avhandlingar innehållade orden Fourier-transform infrared spectroscopy.

  1. 11. Influence of waxes on bitumen and asphalt concrete mixture performance

    Författare :Ylva Edwards; Ulf Isacsson; Klaus-Werner Damm; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bitumen; asphalt; additives; wax in bitumen; polyphosphoric acid in bitumen; rheology; IR-spectroscopy; dynamic mechanic analysis DMA ; bending beam rheometer BBR ; literature study; low temperature physical hardening; highway materials; morphology; modified bitumens; temperature susceptibility; low temperature performance; ageing; microscopy; chromatography; Fourier transform infrared spectroscopy; force ductility; conventional binder tests; asphalt performance; tensile strain restrained specimen test TSRST ; Building engineering; Byggnadsteknik;

    Sammanfattning : This doctoral thesis consists of a literature review, presented in two papers, and another six papers describing experimental studies of the influence of different kinds of wax and polyphosporic acid on bitumen and asphalt concrete mixture properties. The literature review should give an extensive description of the field of knowledge concerning wax in bitumen. LÄS MER

  3. 12. Understanding Composition–Structure–Bioactivity Correlations in Bioactive Glasses

    Författare :Yang Yu; Mattias Edén; Laurent Delevoye; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bioactive glasses; Phosphosilicate glasses; Borophosphosilicate glasses; Solid-state NMR spectroscopy; Glass structure; Fourier-transform infrared spectroscopy; Hydroxyapatite; Amorphous calcium phosphate; Apatite formation; In vitro bioactivity testing; Physical Chemistry; fysikalisk kemi;

    Sammanfattning : Bioactive glasses integrate with bone/tooth tissues by forming a layer of hydroxy-carbonate apatite (HCA), which mimics the composition of bone mineral. In the current thesis, we investigated composition–structure–bioactivity correlations of phosphosilicate and borophosphosilicate (BPS) glasses. LÄS MER

  4. 13. Structural Properties of Palladium-Manganese Alloys

    Författare :Alexander J Jaworowski; Lunds universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; transition metal; structure; growth; adsorption; core level photoemission. scanning tunneling microscopy; fourier-transform infrared spectroscopy; Manganese; Palladium; Rhodium; Molybdenum; NO; CO; alloy; O; Physics; Fysik; Semiconductory physics; Halvledarfysik; Fysicumarkivet A:2001:Jaworowski;

    Sammanfattning : Structural properties of adsorbed overlayers on well-defined single crystals and of Palladium-Manganese surface alloys formed on Pd(100) have been investigated using synchrotron-based photoemission, scanning tunneling microscopy and Fourier-transform infrared spectroscopy. The experimental valence electronic structure of PdMn systems on Pd(100) is compared to density functional calculations (DFT). LÄS MER

  5. 14. Interactions between polyphenols and macromolecules facilitate the extraction of low viscosity banana juice

    Författare :Nuria Majaliwa; Chalmers tekniska högskola; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; response surface methodology; polyphenols; banana juice; East African Highland bananas; Fourier Transform Infrared spectroscopy; protein distributions;

    Sammanfattning : Bananas are an important staple food and cash crop throughout the African Great Lakes region where they contribute highly to livelihood and food security. However, bananas are perishable fruits that require effective processing techniques to reduce post-harvest losses. LÄS MER

  7. 15. Characterization of the carbohydrate composition of pulp fibers

    Författare :Sofia Bjarnestad; KTH; []
    Nyckelord :capillary zone electrophoresis; carbohydrate composition; fiber; fourier transform infrared spectroscopy; ftir;

    Sammanfattning : .... LÄS MER