Sökning: "drilling"

Visar resultat 21 - 25 av 395 uppsatser innehållade ordet drilling.

1. 21. Anslutning av solcellspark till en mottagningsstation

   M1-uppsats, Högskolan Väst/Institutionen för ingenjörsvetenskap

   Författare :Gholam Fayaz; [2023]
   Nyckelord :Solar cells; preparation; investigation; Solceller; utredning; beredningsarbete;

   Sammanfattning : Detta examensarbete behandlar hur ett beredningsarbete för anslutning av solcellspark utförs. Skara Energi AB ska utföra beredning för att ansluta en solcellspark till elnätet på uppdrag av en privat kund i Skara kommun. LÄS MER

3. 22. Influence of Surface Carbon Content on the Wear of Threaded Connections in Rock Drilling Steels

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Andreas Hälsing; [2023]
   Nyckelord :carbon content; wear performance; carburized steel; dry contact interface; threaded connections; drill rods; samples; shot peening; production process; twin-disc wear tester; RPM; operating conditions; wear rate; surface topography; hardness; optical analysis; light optical microscopy; scanning electron microscopy; surface carbon content; microstructural changes; frictional heat; contact pressure; wear mechanisms; plastic deformation; adhesive scratching; material removal; delamination;

   Sammanfattning : This thesis work was conducted at Luleå University of Technology in collaboration with Sandvik Rock Tools. The aim of the work was to determine the influence of carbon content on the wear performance in carburized steel in the dry contact interface of threaded connections between drill rods. LÄS MER

4. 23. Hydrogeological and economic analysis of a groundwater-based water supply system in rural Nepal

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Teknisk geologi

   Författare :Hamon Hedayatnasab; [2023]
   Nyckelord :Technology and Engineering;

   Sammanfattning : Access to safe drinking water and sanitation is a given standard and considered as basic human rights in urban areas and industrialized countries. However, 40 % of the world's population living in rural areas in developing countries lack access to safe drinking water. LÄS MER

5. 24. Embedment Behavior of Steel Dowel in Timber Loaded Perpendicular to the Grain : Influence of Assembly History in Combination with Moisture Change and Cyclic Loading

   Master-uppsats, Linnéuniversitetet/Institutionen för byggteknik (BY)

   Författare :Mojtaba Khalili; [2023]
   Nyckelord :Embedment strength; elastic and plastic embedment stiffness; moisture content; swelling and shrinkage; steel dowel; assembly history; cyclic loading;

   Sammanfattning : The embedment behavior of dowels in timber structures, as an essential parameter in the design of connections, is the subject of this thesis. There are numerous advantages using timber structures, including sustainability, energy efficiency, and aesthetic appeal. LÄS MER

7. 25. Effect of suspended sediment on embryos and larvae of the cold‐water coral Lophelia pertusa

   Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

   Författare :Charlie Havsblad; [2022-09-13]
   Nyckelord :Lophelia pertusa; Desmophyllum pertusum; suspended sediment; embryo; larvae;

   Sammanfattning : The cold-water coral Lophelia pertusa (syn. Desmophyllum pertusum) provides importanthabitats in deep-sea ecosystems, allowing for a biodiversity similar to that of tropical coral reefs. LÄS MER