Sökning: "Deposit"

Visar resultat 21 - 25 av 309 avhandlingar innehållade ordet Deposit.

  1. 21. The nature of gold in the Aitik Cu-Au deposit : implications for mineral processing and mine planning

    Författare :Monika Sammelin; Andreas Fredriksson; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Malmgeologi; Ore Geology;

    Sammanfattning : The Aitik mine is a large Cu-Au producer in Europe with an annual production of 28 million tons of ore and a planned expansion of production to 36 million tons of ore until year 2013. Large ongoing investments are done in the mine and a new processing plant is built to manage the capacity increase. LÄS MER

  3. 22. Transient Air to Fuel Ratio Response in a Fuel Injected S.I Engine

    Författare :Göran Almkvist; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; dynamic; A F; model; transient; air to fuel; response; time constant; film; behavior; lambda; time-delay; fuel; mass; deposit factor;

    Sammanfattning : Future emission standards make it necessary to focus on the conditions under which engine emissions are produced, especially before the catalyst light off. During practical driving conditions, such as those represented by the FTP 75 test cycle, the engine is operated very much under transient conditions regarding load and speed. LÄS MER

  4. 23. Reglering av banker

    Författare :Hans Gustaf Sjöberg; Göran Millqvist; Niklas Arvidsson; Daniel Stattin; Institutionen för handelsrätt; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Banks; prudential regulation; legislation; jurisprudence; economic analysis; corporate governance; capital; implicit guarantees; deposit insurance; asymmetric information; deposits; adverse selection and moral hazard; legal certainty; bank; Legal Science;

    Sammanfattning : The subject of this dissertation is the regulation of banks. The enquiry is built around three overreaching research questions:1. What is a bank?2. Why do banks have to be regulated?3. LÄS MER

  5. 24. On the origin of the Fäboliden orogenic gold deposit, northern Sweden

    Författare :Glenn Bark; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ore Geology; Malmgeologi;

    Sammanfattning : A new promising ore province, the Gold Line, southwest of the well- known Skellefte District, northern Sweden, is currently under exploration. This province hosts, so far, one operating mine, the Svartliden Au mine, and the recently closed Blaiken Zn-Pb-Au-Ag mine. LÄS MER

  7. 25. Fluid inclusion studies of the Laisvall sandstone lead-zinc deposit, Sweden

    Författare :Sten Lindblom; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The ore forming environment at Laisvall was characterized by a total salt content of 24 eq. wt-% NaCl with as much as 9 wt-% CaCl2. Its temperature fluctuated between 180°C and 120°C but generally decreased with time. The cementing mineral assemblage was deposited in the general sequence calcite, barite, fluorite, galena, sphalerite. LÄS MER