Sökning: "iron"

Visar resultat 1 - 5 av 882 uppsatser innehållade ordet iron.

  1. 1. Kontinuitet eller förändring och avbrott?

    Master-uppsats,

    Författare :Linnéa Hernqvist; [2019-02-11]
    Nyckelord :Iron Age; Migration Period; Vendel Period; Settlement sites; C-14 database; 536-537 AD event; The Justinian plague; Microarchaeology; Site biography;

    Sammanfattning : For almost a century, archaeological research has been trying to understand the archaeological and environmental sources and analyses pointing towards an overall decline in e.g. settlements and agriculture in the Migration- and Vendel period in different areas of Scandinavia. LÄS MER

  3. 2. Chemical Stabilization of Arsenic in Contaminated Soil under Low Redox Conditions

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Eva Smedborn Pausson; [2019]
    Nyckelord :;

    Sammanfattning : Remediation techniques for arsenic contaminated soil have previously focused mostly on the surface soil layers where aerobic conditions are prevalent. In this master thesis, chemical stabilization by adding zero-valent iron (Fe(0)) and calcium oxide (CaO) to an arsenic-contaminated soil under low redox conditions have been studied through up-flow percolation tests. LÄS MER

  4. 3. Influence of nitrocarburization on the thermomechanical fatigue properties of ductile iron for exhaust components : Analysis and comparisons of TMF-properties

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Karl Larsson; [2019]
    Nyckelord :Thermo-mechanical fatigue; low cycle fatigue; thermal strain; ductile cast iron; nitrocarburizing;

    Sammanfattning : New stricter environmental legislation requires lower emissions and fuel consumption of automotive engines. Therefore the fuel efficiency must be increased but this leads to higher loads in the engine. As for the exhaust system it is affected by higher thermomechanical loads. LÄS MER

  5. 4. Iron-Based Dye-Sensitized Solar Cells - From Theory to Working Solar Cell

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Linnea Lindh; [2019]
    Nyckelord :Dye-sensitized solar cells; Grätzel cells; solar cells of the future; solar cells of tomorrow; spectroscopy; time-resolved spectroscopy; materials chemistry; materialkemi; Chemistry;

    Sammanfattning : In the hunt for fossile-free energy-harvesting techniques, solar cells constitute one of the most promising techniques. Today, silicon-based solar cells are the dominant technique on the market but even the Silicon solar cell has limitations which means that there is a motivation for developing new solutions. LÄS MER

  7. 5. Nanomaterials for the consolidation of iron-tannate dyed textiles

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Nicoletta Palladino; [2019]
    Nyckelord :;

    Sammanfattning : .... LÄS MER