Sökning: "thermal ageing"
Visar resultat 1 - 5 av 60 avhandlingar innehållade orden thermal ageing.
1. Chemical ageing and thermal stability of polyethylene copolymers
Sammanfattning : .... LÄS MER
2. Mechanisms of Electrical Ageing of Oilimpregnated Paper due to Partial Discharges
Sammanfattning : In this thesis, partial discharge (PD) phenomenon in oil-impregnated paper (OIP) is investigated under accelerated electrical stress. The thesis is mainly focused on the characteristic of PD activity and the influence it has on the insulation properties of OIP. LÄS MER
3. on the thermal yellowing of TCF- bleached birch kraft pulp
Sammanfattning : .... LÄS MER
4. Glutathione peroxidase and selenium in meat - Tissue and species variation, thermal stability and selenium speciation
Sammanfattning : Lipid oxidation is a major problem in muscle foods, leading to a loss in quality and nutritional value. It occurs in raw meat but is usually more pronounced in cooked meat. Since the demands of consumers for ready-to-eat foods have increased, the control of off-flavour in cooked meat is an important industrial problem. LÄS MER
5. Effects of Irradiation and Thermal Ageing on the Nanoscale Chemistry of Steel Welds
Sammanfattning : Structural materials of nuclear power plants degrade during operation due to thermal ageing and irradiation from the reactor core. Effects on the materials are an increase in hardness and tensile strength, and a decrease in ductility and fracture toughness, i. e. embrittlement. LÄS MER