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

    Detta är en avhandling från Stockholm : Department of Archaeology and Classical Studies, Stockholm University

    Författare :Ny Björn Gustafsson; Stockholms universitet.; [2013]
    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

  2. 2. Flotation chemistry of complex sulphide ores recycling of process water and flotation selectivity

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Fatai Kolawole Ikumapayi; Luleå tekniska universitet.; [2010]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mineralteknik; Mineral Processing;

    Sammanfattning : Recycling of flotation effluents through the ore processing plant is one of the ways of reducing both plant-operating costs and industrial impact onto the local ecosystem. Such waters named acid mine drainage (AMD), if discharged from sulphide flotation are gypsum (CaSO4.H2O) saturated and have a high salinity (on the order of 1000 ppm). LÄS MER

  3. 3. Mechanical recycling of consumer electronic scrap

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Jirang Cui; [2005]
    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. 4. A spectroscopic study of mechanically activated sulphide minerals

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Benoit Drouet; [2002]
    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. 5. Orthoborate Ionic Liquids for Lubricated Interfaces

    Detta är en avhandling från Luleå tekniska universitet

    Författare :Mamoun Taher; Luleå tekniska universitet.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Materials science - Functional materials; Chemistry - Physical chemistry; Chemistry - Organic chemistry; Materials science - Surface engineering; Teknisk materialvetenskap - Funktionella material; Kemi - Fysikalisk kemi; Kemi - Organisk kemi; Teknisk materialvetenskap - Ytbehandlingsteknik; 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