Sökning: "volatile organic compounds"

Visar resultat 6 - 10 av 118 avhandlingar innehållade orden volatile organic compounds.

  1. 6. Low-Temperature Oxidation of CO and Volatile Organic Compounds over Supported Platinum Catalysts

    Författare :Karl Arnby; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hexamethyldisiloxane; alumina; catalytic deactivation; environmental catalysis; platinum; volatile organic compounds; carbon monoxide; low-temperature activity;

    Sammanfattning : The catalytic oxidation of carbon monoxide (CO) and volatile organic compounds (VOC) is important for the reduction of harmful emissions from both vehicles and from stationary sources. Both these applications suffer from poor catalytic efficiency at lower temperatures. LÄS MER

  2. 7. 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

  3. 8. Indoor air quality and chemical emissions of organic compounds in newly built low-energy preschools

    Författare :Josefin Persson; Thanh Wang; Jessika Hagberg; Pim Leonards; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Indoor air quality; volatile organic compounds; brominated flame retardants; organophosphate flame retardants; low-energy preschools; environmental certification; indoor dust; surface wipes;

    Sammanfattning : In 2010, the European Union (EU) introduced the “Energy performance of Buildings” directive, which stipulates that all new buildings must reduce their energy consumption by constructing low-energy buildings. This could be achieved by constructing airtight and energy efficient envelopes with functional building materials such as age-resistant plastic films, insulation and different sealing products. LÄS MER

  4. 9. Emissions of volatile organic compounds during drying of wood

    Författare :Karin Granström; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Miljö- och energisystem; Environmental and Energy Systems;

    Sammanfattning : .... LÄS MER

  5. 10. Stress-induced BVOC emissions from forests in Sweden

    Författare :Erica Jaakkola; BECC: Biodiversity and Ecosystem services in a Changing Climate; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Volatile organic compounds; Plant stress; Forests; Volatile emissions; spruce bark beetle infestations; ozone stress; wildfire recovery; Picea abies Norway spruce ; Betula pubescens ssp. czerepanovii; Pinus sylvestris Scots pine ; sweden;

    Sammanfattning : A changing climate is expected to lead to more extreme weather events, such as an increased frequency of droughts and forest fires. Changing forest conditions can offer benefits to species such as insects, including bark borers that thrive in warm conditions. LÄS MER