Sökning: "Sunlight"

Visar resultat 6 - 10 av 148 avhandlingar innehållade ordet Sunlight.

1. 6. Preharvest Conditions Affecting Apple Quality, Antioxidant Responses and Susceptibility to the Infection by Grey mould (Botrytis cinerea)

   Författare :Tuyet Bui Thi Anh; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Malus x domestica; grey mould; preharvest weather; apples’ quality; antioxidants; harvest year;

   Sammanfattning : Apple fruits are rich in vitamin C and other antioxidants, which are beneficial for human health. During postharvest storage, there are losses as a result of diseases such as grey mould, caused by the fungus Botrytis cinerea. The present work has investigated how to obtain a high quality of apples, allowing long-term storage. LÄS MER

3. 7. Materials and Device Engineering for Efficient and Stable Polymer Solar Cells

   Författare :Rickard Hansson; Ellen Moons; Andreas Opitz; Rene Janssen; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polymer solar cell; photovoltaics; morphology; photo-degradation; conjugated polymer; fullerene; synchroton-based techniques; hole transport layers; Physics; Fysik;

   Sammanfattning : Polymer solar cells form a promising technology for converting sunlight into electricity, and have reached record efficiencies over 10% and lifetimes of several years. The performance of polymer solar cells depends strongly on the distribution of electron donor and acceptor materials in the active layer. LÄS MER

4. 8. Solar access indicators for urban planning

   Författare :Agnieszka Czachura; Avdelningen för Energi och byggnadsdesign; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; solar access; urban planning; performance indicator; daylighting; sunlighting; neighbourhood; metric taxonomy; urban density;

   Sammanfattning : Solar access describes the amount and distribution of sunlight in living environments. Access to sunlight is crucial for the health and sustainability of cities. It is vital for people and vegetation, and for energy production and conservation. LÄS MER

5. 9. Photosynthetic water oxidation : the function of two extrinsic proteins

   Författare :Tatiana Shutova; Göran Samuelsson; Stenbjörn Styring; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; photosystem II; Psb0; Cah3; water oxidation; Plant physiology; Växtfysiologi;

   Sammanfattning : The solar energy accumulated by photosynthesis over billions of years is the sole source of energy available on Earth. Photosystem II (PSII) uses the sunlight to split water, an energetically unfavorable reaction where electrons and protons are extracted from water and oxygen is released as a by-product. LÄS MER

7. 10. Composite Nanostructured Materials for Renewable Energy Applications

   Författare :Elfatih Mohammed Mustafa; Omer Nur; Magnus Willander; Malik Maaza; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solar energy; Photocatalysis; Solar cells; Nanostructured materials; ZnO; CuO; Ta2O5; GaAs;

   Sammanfattning : Diverse sources of energy are becoming increasingly significant in today's world. The most common source of energy today is fossil fuels, such as coal, oil, and gas. While this energy source has many advantages, it also comes with many problems. LÄS MER