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Visar resultat 6 - 8 av 8 avhandlingar som matchar ovanstående sökkriterier.

  1. 6. Utilization of waste materials for extraction of strategic metals : a biogeochemical approach

    Författare :Viktor Sjöberg; Stefan Karlsson; Bert Allard; Mattias Bäckström; Christian Ekberg; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biogeochemistry; ICP-QMS; MP AES; strategic metals; vanadium; uranium; mine waste; steel slag; shale residues; Enviromental Science; Miljövetenskap;

    Sammanfattning : Worldwide the modern society produces vast amounts of waste materials containing strategic and valuable metals. Some of them are of substantial economic or environmental significance if controlled recovery of metals can be performed or if uncontrolled release to the environment occurs. LÄS MER

  3. 7. Environmental impact of alum shale mining in Kvarntorp, Närke, Sweden

    Författare :Kristina Åhlgren; Mattias Bäckström; Stefan Karlsson; Roger Herbert; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; alum shale; black shale; oil shale; Kvarntorp; uranium; surface water; groundwater; open pits;

    Sammanfattning : Due to scarcity of imported liquid fuel during World War II, alum shale was mined for oil production in the Kvarntorp area 1942-1966. The shale contains both organic matter (kerogen) and elevated concentrations of trace elements such as molybdenum, nickel, uranium and vanadium. LÄS MER

  4. 8. Taking a system view on customer value creation

    Författare :Anna Åslund; Ingela Bäckström; Johan Lilja; Mattias Elg; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; customer value; customer value creation; societal value; system view; Total Quality Management TQM ; Quality Management; Societal entrepreneurship; social entrepreneurship; Value Ripple Logic VRL ;

    Sammanfattning : In Quality Management and Total Quality Management (TQM) customer focus and customer value creation is of importance and in organisations it is of high priority. Quality Management has had an internal focus when it comes to customer value creation but in the 21st century there is a need for an outward orientation and to go beyond the organisational borders. LÄS MER