Sökning: "fatigue."
Visar resultat 1 - 5 av 1007 avhandlingar innehållade ordet fatigue..
1. Oxidation, Creep and Fatigue Synergies in Cast Materials for Exhaust Manifolds
Sammanfattning : The future development of engines of heavy-duty vehicles towards reduced CO2 emission will increase the exhaust gas temperature and render the exhaust atmosphere more corrosive. The current service material of exhaust gas components - a ferritic ductile cast iron called SiMo51 - will soon meet its upper-temperature limit. LÄS MER
2. Fatigue och återhämtning efter hjärtinfarkt
Sammanfattning : Fast and efficient acute medical treatment of myocardial infarction (MI) has developed during recent years and has resulted in a reduced number of days spent in hospital and increased survival. To optimize persons’ recovery, secondary preventive strategies are important. LÄS MER
3. Very high cycle fatigue of high performance steels
Sammanfattning : Many engineering components reach a finite fatigue life well above 109 load cycles. Some examples of such components are found in airplanes, automobiles or high speed trains. For some materials the fatigue failures have lately been found to occur well after 107 load cycles, namely in the Very High Cycle Fatigue (VHCF) range. LÄS MER
4. Fatigue of steel bridges : New structural details and the implementation of high strength steel
Sammanfattning : The use of high strength steel has the potential to reduce the amount of steel used in bridge structures and thereby facilitate a more sustainable construction. The amount of steel and what steel grade that can be used in bridge structures and other cyclic loaded structures are often limited by a material degradation process called fatigue. LÄS MER
5. Fatigue in long-term illness : Influencing factors and functional performance in chronic obstructive pulmonary disease and in cancer
Sammanfattning : Syfte: Avhandlingen studerade sambandet mellan fatigue (trötthet) och valda inverkande faktorer, funktionsförmåga (fysisk och daglig aktivitet och arbetsförmåga) samt med hälsorelaterad livskvalitet (HRQL) vid kroniskt obstruktiv lungsjukdom (KOL) och vid cancer. Metod: Patienter med KOL (n=121, delarbete I-II) och patienter med cancer under pågående strålbehandling (n=457, delarbete III) studerades i tvärsnittsstudier. LÄS MER