Sökning: "LKAB"

Visar resultat 11 - 15 av 74 avhandlingar innehållade ordet LKAB.

1. 11. Traceability in continuous processes : applied to ore refinement processes

   Författare :Björn Kvarnström; Josse De Baerdemaeker; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kvalitetsteknik; Quality Technology and Management;

   Sammanfattning : Introduction and purpose: Traceability is central for the identification of the root cause(s) behind a product deviation and thus to achieve a product and process quality that is both high and even. Continuous processes contain several characteristics complicating traceability which are not usually discussed in the scientific literature. LÄS MER

3. 12. Tre perspektiv på att mäta och värdera förluster av nyckelkompetenser

   Författare :Kristina Laurell-Stenlund; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Construction Engineering and Management; Byggproduktion;

   Sammanfattning : During the next 3-7 years a high number of employees will leave many Swedish companies due to retirement, possibly leading to companies losing their key competencies. The loss of key competencies may have negative consequences on the competitiveness of a company and its productivity and efficiency. LÄS MER

4. 13. Cost-benefit analysis of labor market programs : Applied to a temporary program in northern Sweden

   Författare :Henry Ohlsson; Karl-Gustaf Löfgren; Eskil Wadensjö; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi;

   Sammanfattning : The study's objective is to evaluate the relief works and special projects that were in effect during the period 1983-1986 due to the labor force reduction of almost 2 000 persons at the LKAB Mining Company in 1983. These reductions caused the Swedish Parliament to set up a special labor market policy organi­zation, the Malmfältsdelegation, which besides initiating relief works and spe­cial projects also functioned as an employment exchange, an employability assessment center, and a training organizer. LÄS MER

5. 14. An Investigation of the Iron-Ore Wheel Damages using Vehicle Dynamics Simulation

   Författare :Saeed Hossein Nia; Sebastian Stichel; Matti Rantatalo; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; three-piece bogie; wear; RCF; prediction; traction; braking; heavy haul; simulation; Vehicle and Maritime Engineering; Farkostteknik;

   Sammanfattning : Maintenance cost is one of the important issues in railway heavy haul operations. For the iron-ore company LKAB, these costs are mainly associated with the reprofiling and changing of the wheels of the locomotives and wagons. The main reason for the wheel damages is usually surface initiated rolling contact fatigue (RCF) on the wheels. LÄS MER

7. 15. Mineralogical, chemical and textural properties of the Malmberget iron deposit : a process mineralogically characterisation

   Författare :Cecilia Lund; Luleå tekniska universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Malmgeologi; Ore Geology;

   Sammanfattning : This thesis combine two different but closely connected disciplines in a mining process to each other, ore geology and process mineralogy by studying mineralogical-textural features of the ore and the ore concentrate in an apatite iron ore deposit in Malmberget, Sweden. Apatite iron ore deposits (Kiruna type) exist in a few places around the world and the two most important deposits are mined by LKAB at Kiruna and Malmberget. LÄS MER