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Hittade 4 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Dependence of Degradation Mechanisms in Magnesium Alloys on Grain Orientation and Interfaces in 3D

    Master-uppsats, Lunds universitet/Materialteknik

    Författare :Johan Ranstad; [2023]
    Nyckelord :Mg-Zn alloys; Diffraction contrast tomography; Isothermal Calorimetry; Immersion testing; Corrosion Rate; Microgalvanic coupling.; Technology and Engineering;

    Sammanfattning : Magnesium alloys are promising candidates as biomedical implants. However, a good understanding of their degradation processes is lacking. In this work, degradation in two magnesium alloys were studied in a simple physiological-fluid electrolyte of H2O+0.9wt%NaCl, Mg-5wt%Zn (Z5) & Mg-5wt%Zn-0. LÄS MER

  3. 2. Fluid inclusions and geochemistry of the Peña del Seo W-deposit, northwest Spain : Controlling mechanisms for tungsten deposition

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

    Författare :Sara Bergström; [2020]
    Nyckelord :Greisen-system; fluid inclusion; tungsten; granite; northwestern Spain;

    Sammanfattning : The Peña del Seo tungsten deposit in northwestern Spain is situated in the tin (Sn)-tungsten (W) metallogenic province of Europe − one of the richest tin-tungsten (tantalum-lithium) mineral provinces in the world. The European Union’s current goal is to become self-sufficient of these commodities in the near future and the iTARG3T project was launched in order to improve the understanding and provide innovative exploration methods of these types of deposits. LÄS MER

  4. 3. The effect of sodium chloride on eggshell quality in laying hens : a review

    Kandidat-uppsats, SLU/Dept. of Anatomy, Physiology and Biochemistry

    Författare :Karin Persson; [2009]
    Nyckelord :sodium chloride; eggshell quality; carbonic anhydrase; shell formation; poultry; hen; fowl;

    Sammanfattning : Sodium chloride, NaCl, has been shown to have a severe adverse effect on shell quality in birds when received in drinking water. This is a major problem due to an increase of breakage of eggs and great economic losses in commercial egg production. LÄS MER

  5. 4. Vätskeinklusioner som ledtrådar till bildningsmiljön för Bölets manganmalm, Västergötland, södra Sverige

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Camilla Borgenlöv; [1997]
    Nyckelord :geografi; geologi; vätskeinklusion; Bölet; manganmalm; Västergötland; Sverige; Earth and Environmental Sciences;

    Sammanfattning : The hydrathermal manganese ores at Bölet, on the western shore of Lake Vättern, southern Sweden, occupy fractures and fissures and form the matrix in brecciated zones in a granite. Gangue minerals include barite, fluorite, quartz, calcite and some vanadinite and edingtonite (Ba-zeolite). LÄS MER