Sökning: "root production"
Visar resultat 16 - 20 av 128 avhandlingar innehållade orden root production.
16. A Framework for optimised welding of fatigue loaded structures : Applied to gas metal arc welding of fillet welds
Sammanfattning : Welding is a key process for heavy steel structures, but it is also a weak link in the structure since fatigue fractures in welds are a common cause of failure. This thesis proposes several changes in order to improve the fatigue properties in acost effective way, enabling reduced weight and reduced cost of welded structures. LÄS MER
17. Towards multi-sensor monitoringand control of Directed Energy Deposition using a Laser Beam
Sammanfattning : Under senare år har omfattande insatser gjorts för att främja mer hållbara flygtransporter i Europa. De konventionella tillverkningsmetoderna som används inom flyg- och rymdindustrin kräver betydande mängder råmaterial, vars utvinning, bearbetning och användning har negativa miljöeffekter. LÄS MER
18. Methane production in dairy cows : impact of feed and rumen microbiota
Sammanfattning : Greenhouse gas emissions from the agricultural sector represent about 14.5% of total emissions related to human activity. Approximately 40% of agricultural sector emissions derive from enteric methane (CH₄) production by ruminants, due to their microbial digestion of feed. LÄS MER
19. Berechnung der Zahnfußspannungen von Beveloidverzahnungen
Sammanfattning : Beveloid gears are conical gears which are derived from cylindrical involute gears to transmit torque and rotation for parallel, intersecting or skew axes. While defined by the same data as cylindrical involute gears, the addendum modification factor, however, changes linearly to the tooth width. LÄS MER
20. Welding of Heavy Structures Subjected to Fatigue
Sammanfattning : Welding is a key process for heavy steel structures, but it is also a weak link of the structure since fatigue fractures in welds are a common cause for failures. This thesis proposes several changes in order to improve the fatigue properties in a cost effective way. LÄS MER