Search for dissertations about: "mining gas"

Showing result 1 - 5 of 27 swedish dissertations containing the words mining gas.

2. 1. Mining Booms in Africa and Local Welfare Effects: Labor Markets, Women’s Empowerment and Criminality

   Author : Anja Tolonen; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Development; Extractive Industries; Mining; Economic Growth; Women s Empowerment; Labor Markets; Africa; Criminality; Gender;

   Abstract : The role that extractive industries can play in processes of economic development is frequently described as, at best non-existent, or at worst, persistently negative. Extractive industries, while focusing on unearthing large sub-soil wealth, are sometimes linked to adverse political and macroeconomic outcomes in developing countries. READ MORE

4. 2. Mine production index: Development and application

   Author : Amol Lanke; Luleå tekniska universitet; []
   Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; production Assurance program PAP ; Fuzzy analytical hierarchy process FAHP ; Mine production assurance MPA ; Bottleneck detection; Mine production index MPi ; Mining; Industrial engineering and economy - Other industrial engineering and economics; Industriell teknik och ekonomi - Övrig industriell teknik och ekonomi; Drift och underhållsteknik; Operation and Maintenance;

   Abstract : Assuring production forms a crucial part of mining business profitability. Factors related to various mine operations, activities and business processes can threaten required/planned mine production. To address problems and ensure production level in mining, it is necessary to implement a mine production assurance program (MPA). READ MORE

5. 3. Submicron gas bubbles in water

   Author : Fredrik Eklund; Chalmers University of Technology; []
   Keywords : NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; microbubbles; nanobubbles; ultrafine bubbles; digital holographic microscopy; nanoparticle tracking analysis;

   Abstract : Gas bubbles smaller than 1 micrometre in water, commonly referred to as nanobubbles, is a growing field of research and innovation. Applications range from medical imaging and drug delivery to mining industry and environmental remediation. READ MORE

6. 4. Rock mass transportation systems in underground mines: consequences and solutions when mining at greater depths

   Author : Bartlomiej Skawina; Luleå tekniska universitet; []
   Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Gruv- och Berganläggningsteknik; Mining and Rock Engineering;

   Abstract : The research presented in this thesis addresses a number of challenges related to rock mass transportation in deep underground mines. In particular, high energy consumption and high exhaust gas emissions from diesel and electric LHDs, the effects of ore pass loss on the loading, hauling and dumping operations due to increasing stresses and increasing costs due to the longer vertical transportation of the rock masses. READ MORE

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

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

   Abstract : 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. READ MORE