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Visar resultat 1 - 5 av 265 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Draw control strategy for sublevel caving mines : A holistic approach

   Författare :Gurmeet Shekhar; Håkan Schunnesson; Anna Gustafson; Jesper Martinsson; Laeeque Daneshmend; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Draw control strategy; sublevel caving SLC ; loading process; draw point; caving operation; Bayesian statistics; probability models; economic models; Mining and Rock Engineering; Gruv- och berganläggningsteknik;

   Sammanfattning : Sublevel caving is an underground mass mining method used for extracting different types of ores from the earth crust. Mines using sublevel caving (SLC) as the primary mining method are generally highly mechanized with standardized and independent unit operations. LÄS MER

3. 2. Kommunala huvudmannastrategier för kostnadspress och utveckling : en studie av kommunal teknik

   Författare :Ola Mattisson; Företagsekonomiska institutionen; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; municipal engineering; strategy; Municipal responsible authority; process; competitive tendering; co-operation; innovation; cost reduction; Management of enterprises; Företagsledning; management;

   Sammanfattning : The aim of the study is to improve the understanding of strategy in politically governed organisations. From the perspective of a specific responsible authority the main purpose of the study is to describe and analyse how strategies emerge and develop. LÄS MER

4. 3. Småföretag i flerpartssamverkan : en studie av aktörer, byggstenar och fogmassa vid nätverksbyggande

   Författare :Kerstin Nilsson; Per Nilsson; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; MCS; Network; Environment; Bricks; Concrete; Actors; Generated theory; Multimethodological; Action research; Dialogue; Arenas; Grounded theory;

   Sammanfattning : The environment for business enterprises and other organizations is changing rapidly and profoundly. These changes generate threats as well as possibilities. The threats are especially pronounced for small enterprises since they lack the large firm's resources to stand up to increasing international competition. LÄS MER

5. 4. Maintenance strategy for mechanized mining systems : a reliability analysis based approach

   Författare :Uday Kumar; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

   Sammanfattning : .... LÄS MER

7. 5. Sustainable Arsenic Mitigation A Strategy for Scaling-up Safe Water Access : A Strategy for Scaling-up Safe Water Access

   Författare :Mohammed Hossain; Prosun Bhattacharya; Marinus Eric Donselaar; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Bangladesh; drinking water; arsenic mitigation; local tubewell driller; sediment color tool; low-manganese; Intermediate Deep aquifer; Land and Water Resources Engineering; Mark- och vattenteknik;

   Sammanfattning : In rural Bangladesh, the drinking water supply is mostly dependent upon manually operated hand pumped tubewells, installed by the local community. The presence of natural arsenic (As) in groundwater and its wide scale occurrence has drastically reduced the safe water access across the country and put tens of millions of people under health risk. LÄS MER