Sökning: "ether"

Visar resultat 1 - 5 av 215 avhandlingar innehållade ordet ether.

  1. 1. NOx reduction with dimethyl ether in lean exhaust

    Författare :Sara U Erkfeldt; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NOx storage; Dimethyl ether; ether; hydrocarbon-SCR; lean NOx reduction; alcohol; Cu-ZSM-5; lean NOx trap; alkane; alternative fuel;

    Sammanfattning : There is a growing concern worldwide about the increase in anthropogenic greenhouse gas emissions, particularly carbon dioxide (CO2) from the combustion of fossil fuels. Vehicles with internal combustion engines contribute significantly to these emissions, which has led to an increased demand for engines running on alternative (non-fossil) fuels. LÄS MER

  3. 2. Hydrogen generation from dimethyl ether by autothermal reforming

    Författare :Marita Nilsson; Lars Pettersson; Ann Cornell; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; autothermal reforming; auxiliary power unit; dimethyl ether; fuel cell; hydrogen; palladium; reforming catalyst; temperature-programmed reduction; truck idling; X-ray diffraction; zinc; Chemical engineering; Kemiteknik;

    Sammanfattning : Heavy-duty trucks are in idle operation during long periods of time, providing the vehicles with electricity via the alternator at standstill. Idling trucks contribute to large amounts of emissions and high fuel consumption as a result of the low efficiency from fuel to electricity. LÄS MER

  4. 3. An Essay on Thomas Reid´s Philosophy of Science

    Författare :Robert Callergård; Dugald Murdoch; Ryan Nichols; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Newton; newtonianism; Regulae Philosophandi; physics; constant conjunction; hypothesis; ether; force; efficient cause; simplicity; explanation; law; Theoretical philosophy; Teoretisk filosofi;

    Sammanfattning : Though generally recognized as a formative force in his philosophy, Thomas Reid’s Newtonianism and his philosophy of science has not received due attention among scholars. My aim is to inaugurate a detailed survey. In ch. LÄS MER

  5. 4. Studies on the halothane-diethyl-ether azeotrope

    Författare :Sigga Kalman; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Requirements for a safe standard for anaesthesia under primitiveconditions differ from those under peaceful circumstances. It is important not to blunt the reflexes that guard vital functions. LÄS MER

  7. 5. Exploring bio-based monomers for UV-curable polymer networks

    Författare :Sara Brännström; Eva Malmström; Yves Leterrier; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bio-based; polymers; vinyl ether; polyester; photopolymerization; lipase; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Increased environmental awareness and concern has led to a high demand for sustainable, bio-based materials. Consequently, there is a need for research and development of new bio-based polymeric materials that can be synthesized via routes eliminating excessively toxic reactants and by-products. LÄS MER