Sökning: "mixing rates"

Visar resultat 26 - 28 av 28 uppsatser innehållade orden mixing rates.

  1. 26. Biogasproduktion genom tvåstegsrötning av drankvatten

    Uppsats för yrkesexamina på grundnivå, Tema vatten i natur och samhälle

    Författare :Sara Hallin; [2008]
    Nyckelord :biogas; tvåstegsrötning; anaerob nedbrytning; drankvatten; termofil; mesofil;

    Sammanfattning : During the 19-century a global warming has been observed, which includes increases in global air and ocean temperatures, widespread melting of ice and snow, and rising global sea level. There is a clear connection between emissions of greenhouse gases caused by the human and the increase in temperature. LÄS MER

  3. 27. Effect of resuspension on mineralisation of organic material : Laboratory studies of water movement intensity and concentration of suspended sediment

    Magister-uppsats, Institutionen för tematisk utbildning och forskning

    Författare :Charlotte Stenborg Larsson; [2005]
    Nyckelord :Mineralisation rate; organic material; resuspension; water movement intensity; suspended sediment;

    Sammanfattning : The Earth’s surface contains of 71% oceans and a large part of the global carbon cycle takes place in the oceans. In the aquatic environment, the sediment-water interface plays an important role for the mineralisation of organic material. One factor that can affect the mineralisation is resuspension. LÄS MER

  4. 28. A polymer gel prepared under normal levels of oxygen Basic studies and the potential for IMRT verifications

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Anna Karlsson; [2002]
    Nyckelord :MRI; Medicine and Health Sciences;

    Sammanfattning : "The technology for planning and delivering radiotherapy has in the last decade undergone some revolutionary development and it is now possible to perform complex treatments such as stereotactic treatments and treatments using dynamic wedges, multileaf collimator and intensity modulation. The more precise limits surrounding the PTV have made it of utmost interest to be able to verify calculated dose distributions in 3D. LÄS MER