Search for dissertations about: "Nitrogen Oxides"

Showing result 11 - 15 of 178 swedish dissertations containing the words Nitrogen Oxides.

  2. 11. Nonmethane hydrocarbons and nitrogen oxides in background air : long-range transport of precursors in relation to oxidant formation

    Author : Anne Lindskog; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  4. 12. Atmosphere-surface exchange of nitrogen oxides and ozone

    Author : Alberto Rondón; Stockholms universitet; []
    Keywords : ;

    Abstract : .... READ MORE

  5. 13. Use of chemical denitrification for nitrogen removal from landfill leachates

    Author : Aleksandra Nikolic; KTH; []
    Keywords : Chemical denitrification; conductivity; evaporation drying; freezing thawing; leachate; nitrogen removal;

    Abstract : Landfill leachate usually has a high concentration ofammonium nitrogen and heavy metals, but too low alkalinitycontent for full biological nitrification, as well as a too lowconcentration of biologically degradable organic carbon forbiological denitrification, and at the same time very variablecomposition (quantity and quality) with time. These factorsresult in serious problems for treating leachate with existingsystems. READ MORE

  6. 14. Tailored process gases for laser powder bed fusion

    Author : Camille Nicole Géraldine Pauzon; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Helium; Laser powder bed fusion; AM process productivity; Spatter particles; Residual oxygen; 316L stainless steel; Argon; Nitrogen; Additive manufacturing; Process atmosphere; Process stability; Residual stresses.; Ti-6Al-4V; Alloy 718;

    Abstract : Metal laser powder bed fusion (L-PBF) allows for production of complex components using the energy from a laser to locally melt micron-sized powder following a layer-wise approach. Considerable scientific efforts are focused on addressing the influence of the process parameters on the melting stability and the control of material properties, while developing necessary monitoring and characterization tools. READ MORE

  7. 15. Materials prepared using graphite oxides : properties and applications

    Author : Artem Iakunkov; Aleksandr V. Talyzin; Josef Breu; Umeå universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Graphene oxide; Activated Graphene; Swelling; Supercapacitor; Sorption of radionuclides; Materials Science; materialvetenskap; fysik; Physics;

    Abstract : Graphite oxides are hydrophilic materials, which have attracted a lot of attention due to unique properties and possible applications. The current thesis includes studies of fundamental properties and applications of graphite oxides as well as materials prepared from graphite oxides such as graphene oxide membranes, defect-rich graphite oxide, reduced graphene oxide and activated reduced graphene oxide. READ MORE