Sökning: "Nils Jansson"
Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Nils Jansson.
1. The origin of iron ores in Bergslagen, Sweden, and their relationships with polymetallic sulphide ores
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. The origin of the Ryllshyttan stratabound Zn-Pb-Ag-(Cu) + magnetite deposit, Garpenberg, Bergslagen, Sweden
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. Bulten och arbetskraftsinvandringen : Analys av ett industriföretags rekryteringstrategier åren 1947-1967
Sammanfattning : .... LÄS MER
4. Ett möte mellan två skrivkulturer : Några högstadieungdomars syn på och bruk av skrift vid skol- respektive privatskrivande
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
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