Sökning: "Nils Jansson"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Nils Jansson.

  1. 1. The origin of iron ores in Bergslagen, Sweden, and their relationships with polymetallic sulphide ores

    Författare :Nils Jansson; Luleå tekniska universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Malmgeologi; Ore Geology;

    Sammanfattning : The Bergslagen mining district of southern Sweden is one of Europe’s classic mining districts with more than 1 000 years of mining history. One of the typical features of Bergslagen is a spatial association between Zn-Pb-Ag-(Cu-Au) sulphide deposits and magnetite-rich Fe oxide deposits. LÄS MER

  2. 2. The origin of the Ryllshyttan stratabound Zn-Pb-Ag-(Cu) + magnetite deposit, Garpenberg, Bergslagen, Sweden

    Författare :Nils Jansson; Luleå tekniska universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Malmgeologi; Ore Geology;

    Sammanfattning : Ryllshyttan is a Palaeoproterozoic lower amphibolite-facies poly-metamorphosed stratabound Zn-Pb-Ag-(Cu) + magnetite deposit. It is located in the Garpenberg inlier of the Bergslagen mining district of southern Sweden and produced ~ 1 Mt sulphide ore and ~ 0.4 Mt magnetite ore from the early 16th century until 1944. LÄS MER

  3. 3. Bulten och arbetskraftsinvandringen : Analys av ett industriföretags rekryteringstrategier åren 1947-1967

    Författare :Olle Jansson; Lars Magnusson; Sofia Murhem; Nils Edling; Uppsala universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Migration; arbetskraftsinvandring; rekrytering; efterkrigstiden; verkstadsindustri; Ekonomisk historia; Economic History;

    Sammanfattning : .... LÄS MER

  4. 4. Ett möte mellan två skrivkulturer : Några högstadieungdomars syn på och bruk av skrift vid skol- respektive privatskrivande

    Författare :Nils Larsson; Olle Josephson; Gunilla Jansson; Theres Bellander; Stockholms universitet; []
    Nyckelord :HUMANITIES; HUMANIORA; HUMANIORA; HUMANITIES; literacy; sociolinguistics; school writing; private writing; gender and writing; bilingualism and writing; digital writing; secondary school; Scandinavian Languages; nordiska språk;

    Sammanfattning : The aim of this study is to shed light on and describe a number of secondary school students’ writing practices and their attitudes towards these practices.The material used in the study comes from a secondary school in a suburb of Stockholm where most of the students are bilingual. LÄS MER

  5. 5. Synthesis and Characterization of Multifunctional Carbide- and Boride-based Thin Films

    Författare :Nils Nedfors; Ulf Jansson; Witold Gulbinski; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; thin film; coating; magnetron sputtering; nanocomposite; boride; carbide; electrical properties; mechanical properties; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Sammanfattning : This thesis present research on synthesis, microstructure, and properties of carbide- and boride- based thin films. The films have been synthesized by dc magnetron sputtering, and their microstructures have been characterized mainly by X-ray photoelectron spectroscopy (XPS), X-ray diffraction, and transmission electron microscopy. LÄS MER