Search for dissertations about: "X–ray diffraction"

Showing result 1 - 5 of 10 swedish dissertations containing the words X–ray diffraction.

  1. 1. Formation and Decomposition of Platinum–Thallium Bond, Kinetics and Mechanism. Structural Characterization of Some Metal Cyanides in the Solid State

    University dissertation from Stockholm : Kemi

    Author : Péter Nagy; KTH.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; metal–metal bond; platinum; thallium; kinetics; mechanism; stopped flow; oxidative addition; cyano complexes; edta; redox reaction; metal cyanides; X–ray diffraction; Raman; NMR; mercury; palladium; nickel; one dimensional wire;

    Abstract : The kinetic and mechanistic features of a new series ofplatinum-thallium cyano compounds containing a direct andunsupported by ligands metal-metal bond have been studied insolution, using standard mix–and–measurespectrophotometric technique and stopped–flow method.These reactions are interpreted as oxidative addition of the cspecies to the square planar Pt(CN)42-complex. READ MORE

  2. 2. Metastable YAlN and ScAlN thin films growth and characterization

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Agnė Žukauskaitė; Linköpings universitet.; Linköpings universitet.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : ScxAl1-xN and YxAl1-xN thin films were deposited in a ultra high vacuum system using reactive magnetron co-sputtering from elemental Al, Sc and Y targets in Ar/N2. Their mechanical, electrical, optical, and piezoelectrical properties were investigated with the help of transmission electron microscopy, xray diffraction, ellipsometry, I-V and C-V measurements, and two different techniques for piezoelectric characterization: piezoresponse force microscopy and double beam interferometry. READ MORE

  3. 3. Reconstruction of Holocene atmospheric mineral dust deposition from raised peat bogs in south–central Sweden

    University dissertation from Stockholm : Department of Geological Sciences, Stockholm University

    Author : Jenny Sjöström; Stockholms universitet.; [2018]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mineral dust; paleodust; peat; Sweden; Holocene; mineralogy; XRD;

    Abstract : Atmospheric mineral dust plays a dynamic role in the climate system acting both as a forcing and a feedback mechanism. To date, the majority of paleodust studies have been conducted on marine sediments or polar ice cores, while terrestrial deposition has been less studied. READ MORE

  4. 4. Interactions between iron oxides and the additives quartzite, calcite and olivine in magnetite-based pellets

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Pär Semberg; Luleå tekniska universitet.; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process Metallurgy; Processmetallurgi;

    Abstract : In the present study, magnetite pellets with large amounts of the additives olivine, calcite and quartzite were isothermally reduced in a tubular furnace to study the interaction between iron oxides and the additives. A first attempt at using exaggerated amounts of additives was made in order to enable analyses of phases that do not otherwise occur in sufficient amounts for Xray diffraction and EDS-analyses. READ MORE

  5. 5. Crystallographic studies of gluconate kinase

    University dissertation from Stockholm : Karolinska Institutet, Department of Medical Biochemistry and Biophysics

    Author : Louise Kraft; Karolinska Institutet.; Karolinska Institutet.; [2001]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : The first steps of gluconate metabolism in Escherichia coli are the transport of gluconate into the cell by a gluconate transport system, followed by phosphorylation to gluconate-6- phosphate by gluconate kinase. There exist two such different pathways, Grill and GntIl, respectively. READ MORE