Sökning: "Outdoor ageing"

Visar resultat 6 - 10 av 12 avhandlingar innehållade orden Outdoor ageing.

1. 6. I omsorgens namn : Tre diskurser om äldreomsorg

   Författare :Malin Wreder; Gerd Lindgren; Eva Palmblad; Karlstads universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; elderly care; discourse analysis; professions; ageing; gerontology; total instiutions; panopticon; women s work; Sociology; Sociologi; Sociologi; Sociology;

   Sammanfattning : The aim of this study is to describe and analyse three different discourses on elderly care, as they emerge in statements from care staff and research. Each discourse centres on a sign, or pair of signs: care, education/professional competence, and the elderly/ageing. LÄS MER

3. 7. Evaluating Resistance to Corona and Ozone in Polymeric Materials for High Voltage Outdoor Applications

   Författare :Bin Ma; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ozone; housing material; nano-composite; corona; Outdoor insulation; composite insulation;

   Sammanfattning : Resistance to corona discharges and ozone, the well known ageing factors for polymeric materials used in outdoor insulation, has been listed as being of great importance among twelve properties identified by CIGRE WG D1.14 – Material Properties for Non-ceramic Outdoor Insulation. LÄS MER

4. 8. Formation, ageing and thermal properties of secondary organic aerosol

   Författare :Eva U. Emanuelsson; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; volatile organic compounds; biogenic; anthropogenic; secondary organic aerosol; troposphere; volatility; ozone;

   Sammanfattning : In order to properly represent and predict the effects of aerosol in climate systems, an accurate description of their formation and properties is needed. This thesis describes work done to increase the knowledge of processes and properties of atmospherically relevant secondary organic aerosol (SOA) from both biogenic and anthropogenic origin. LÄS MER

5. 9. Long-term Properties of Sustainable Polymeric Materials : Mechanical Recycling and Use of Renewable Resources

   Författare :Emma Strömberg; Sigbritt Karlsson; Amparo Ribes-Greus; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sustainable materials; mechanical recycling; polyolefin; reprocessing; accelerated ageing; chromatography; biofilm; microenvironment chamber; environmental degradation; biocomposite; nanocomposite; Polymer chemistry; Polymerkemi;

   Sammanfattning : New strategies for management of the accumulating amounts of plastic waste are required, to achieve a sustainable development in terms of material production and use. After service life, the materials should be recovered and recycled efficiently to provide a valuable resource for future applications. LÄS MER

7. 10. Electrolyte-Based Dynamics: Fundamental Studies for Stable Liquid Dye-Sensitized Solar Cells

   Författare :Jiajia Gao; Lars Kloo; Elizabeth Gibson; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dye-sensitized solar cells; Stability; Electrolyte; Cobalt redox couples; Additives; Kemi; Chemistry;

   Sammanfattning : The long-term outdoor durability of dye-sensitized solar cells (DSSCs) is still a challenging issue for the large-scale commercial application of this promising photovoltaic technique. In order to study the degradation mechanism of DSSCs, ageing tests under selected accelerating conditions were carried out. LÄS MER