Sökning: "dissolution"

Visar resultat 6 - 10 av 381 avhandlingar innehållade ordet dissolution.

  1. 6. Experimental studies of radiation-induced dissolution of UO2 The effect of intrinsic solid phase properties and external factors

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Alexandre Barreiro Fidalgo; KTH.; [2017]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Oxidation; dissolution; uranium dioxide; gadolinium; bentonite; sulfide; hydrogen; gamma radiation; radiolysis; hydrogen peroxide; hydroxyl radical; repository; Kemi; Chemistry;

    Sammanfattning : Dissolution of the UO2 matrix is one of the potential routes for radionuclide release in a future deep geological repository for spent nuclear fuel. This doctoral thesis focuses on interfacial reactions of relevance in radiation-induced dissolution of UO2 and is divided in two parts:In the first part, we sought to explore the effects of solid phase composition:The impact of surface stoichiometry on the reactivity of UO2 towards aqueous radiolytic oxidants was studied. LÄS MER

  2. 7. Evaluation of a Miniaturized Rotating Disk Apparatus for In Vitro Dissolution Rate Measurements in Aqueous Media Correlation of In Vitro Dissolution Rate with Apparent Solubility

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Anita M. Persson; Uppsala universitet.; [2010]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; analytical methods; HPLC high-performance liquid chromatography ; miniaturization; in vitro dissolution rate; apparent solubility; physicochemical properties; dissolution media; correlation study; chemometrics; PHARMACY Pharmaceutical chemistry; FARMACI Farmaceutisk kemi; Analytical Pharmaceutical Chemistry; Analytisk farmaceutisk kemi;

    Sammanfattning : The general aim of this thesis was to evaluate a newly designed and constructed miniaturized rotating disk apparatus for in vitro dissolution rate measurements of different drug substances from all of the classes in the Biopharmaceutical Classification System (BCS). The new equipment is based on a low volume flow-through cell of Plexiglas, a gold plated magnetic bar and a special designed press. LÄS MER

  3. 8. Klostren och reformationen. Upplösningen av kloster och konvent i Sverige 1523-1596 The Dissolution of the monasteries in 16th century Sweden

    Detta är en avhandling från Artos & Norma Bokförlag

    Författare :Martin Berntson; Göteborgs universitet.; Gothenburg University.; [2003]
    Nyckelord :HUMANIORA; HUMANITIES; monasteries; dissolution; Reformation; popular mentalities; Sweden; sixteenth century;

    Sammanfattning : The aim of the study is to investigate the dissolution of the monasteries in 16th century Sweden. One reason behind this aim is that this process has never before been investigated in its totality. Based on earlier research as well as on my own, I have tried to present a picture of the process as a whole. LÄS MER

  4. 9. Effects of radiolysis on the dynamics of UO2-dissolution

    Detta är en avhandling från Stockholm : Kemi

    Författare :Ella Ekeroth; KTH.; [2003]
    Nyckelord :UO2; spent nuclear fuel; radiolysis; H2O2; H2; oxidation; dissolution; reduction; rate constants; modeling;

    Sammanfattning : .... LÄS MER

  5. 10. Study on the dissolution of lime and dolomite in converter slag

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Tengfei Deng; KTH.; [2012]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dissolution; lime; limestone; dolomite; converter slag;

    Sammanfattning : In the present study, the dissolution mechanism and rate of lime, limestone and dolomite in converter slag was studied. Lime dissolution in stagnant slag was studied first and dissolution of lime, limestone and dolomite under forced convection were carried out by new experimental setup. LÄS MER