Sökning: "Andréas Ray"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden Andréas Ray.

  1. 1. Green Coacervates for Pharma and Food

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Izabella Imets; Andreas Vallin; [2022]
    Nyckelord :MSc; coacervate; biosurfactant; biopolymer; SAXS; DLS; elliposometry; pharmaceutical technology; Technology and Engineering;

    Sammanfattning : Anionic biosurfactant-cationic biopolymer systems were investigated to identify and characterize a coacervation window. The characterization of the systems was performed with dynamic light scattering, small angle x-ray scattering and in-situ ellipsometry. LÄS MER

  3. 2. Mineralogisk-mineralkemisk karakterisering av Nb-Ta-förande associationer från Kolsvapegmatiten, Bergslagen

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Andreas Viitamäki; [2020]
    Nyckelord :Columbite; samarskite; Kolsva; granitic pegmatite; NYF-type; Y; REE; U; Th - Nb; Ta; Ti -oxides; SEM-EDS; XRD; Kolumbit; samarskit; Kolsva; granitpegmatiter; NYF-typ; Y; REE; U; Th - Nb; Ta; Ti -oxider; SEM-EDS; XRD;

    Sammanfattning : De två kemiskt nära besläktade metallerna niob (Nb) och tantal (Ta) räknas av Europakommissionen som kritiska råmaterial. Detta på grund av en kraftigt ökad efterfrågan och en geografiskt koncentrerad global produktion av dem. LÄS MER

  4. 3. Evaluating the Impact of V-Ray Rendering Engine Settings on Perceived Visual Quality and Render Time : A Perceptual Study

    Kandidat-uppsats, Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Författare :Andreas Linné; [2019]
    Nyckelord :V-Ray; Computer-Generated Imagery; Rendering; Perception; Subjective Evaluation;

    Sammanfattning : Background. In computer graphics, it can be a time-consuming process to render photorealistic images. This rendering process, called “physically based rendering” uses complex algorithms to calculate the behavior of light. LÄS MER

  5. 4. Metamorphic record of monazite in aluminous migmatitic gneisses at Stensjöstrand, Sveconorwegian orogen

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Andreas Olsson; [2016]
    Nyckelord :Monazite; LA-ICP-MS; U-Th-Pb Geochronology; Migmatite; Stensjöstrand; Earth and Environmental Sciences;

    Sammanfattning : Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) has been utilised to investigate the age and chemical composition of two texturally different types of monazite in leucosome and mesosome of polymetamorphic aluminous migmatitic gneisses at Stensjöstrand, Halland. Results of radiometric dating are compared with previously published zircon dates. LÄS MER

  7. 5. Museibelysnings påverkan på gula krompigment -utifrån Vincent van Goghs målning Olivskog, Saint-Rémy, 1889

    Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Andreas Roxvall; [2013-06-20]
    Nyckelord : 5-7 Chrome yellow; lemon yellow; darkening of yellow; degradation of pigment; pigment analysis; preventive conservation; museum lighting;

    Sammanfattning : This study discuss the problems of displaying artworks containing yellow chrome pigments, reactive to the wavelengths in LED lights, often used in modern exhibitions. In the late 19th century there where a variety of chrome pigments manufactured, such as lead chromate (PbCrO4) and lead chromate mixed with lead sulphate (PbCrO4 · PbSO4). LÄS MER