Sökning: "Non-ferrous"

Visar resultat 1 - 5 av 15 avhandlingar innehållade ordet Non-ferrous.

  1. 1. Casting Identities in Central Seclusion : Aspects of non-ferrous metalworking and society on Gotland in the Early Medieval Period

    Författare :Ny Björn Gustafsson; Lena Holmquist; Heidemarie Eilbracht; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Archaeometallurgy; Non-ferrous; Archaeological prospection; Metal detection; Geophysical survey; Sweden; Magnetometry; Gotland; Iron Age; Viking Period; Archaeological Science; laborativ arkeologi;

    Sammanfattning : The aim of this thesis has been to investigate and interpret late Iron Ageand Early Medieval traces of non-ferrous metalworking on the islandGotland, Sweden. Gotland was not, based on the archaeological record, anintegrated part of the common Scandinavian culture. LÄS MER

  3. 2. Mechanical recycling of consumer electronic scrap

    Författare :Jirang Cui; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mineralteknik; Mineral Processing;

    Sammanfattning : Consumer electronic equipment (brown goods), such as television sets, radio sets, and video recorders, are most common. However, recycling of consumer electronic scrap is only beginning. LÄS MER

  4. 3. A spectroscopic study of mechanically activated sulphide minerals

    Författare :Benoit Drouet; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry of Interfaces; Gränsytors kemi;

    Sammanfattning : Sulphide minerals are a major source of non-ferrous metals such as lead, zinc or copper. Ores are processed to be selectively separated which can be achieved by flotation. LÄS MER

  5. 4. Orthoborate Ionic Liquids for Lubricated Interfaces

    Författare :Mamoun Taher; Robin D. Rogers; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry of Interfaces; Gränsytors kemi;

    Sammanfattning : The lifespan and efficiency of various types of machinery is often limited by the performance of its lubricated interfaces, which are formed by two interacting surfaces and a lubricant that separates the surfaces to decrease friction and wear. There is a constant quest for more efficient lubricants capable of lubricating non-ferrous surfaces. LÄS MER

  7. 5. The absorption of laser light by rough metal surfaces

    Författare :David Bergström; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Produktionsutveckling; Manufacturing Systems Engineering;

    Sammanfattning : In Laser Material Processing of metals, an understanding of the fundamental absorption mechanisms plays a vital role in determining the optimum processing parameters and conditions. The absorptance, which is the fraction of the incident laser light which is absorbed, depends on a number of different parameters. LÄS MER