Search for dissertations about: "Unsaturated flow"

Showing result 21 - 25 of 27 swedish dissertations containing the words Unsaturated flow.

  2. 21. Catalytic reactions with palladium supported on mesocellular foam : Applications in hydrogenation, isomerization, and C-C bond forming reactions

    Author : Anuja Nagendiran; Jan-Erling Bäckvall; Shu Kobayashi; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mesocellular foam; Heterogeneous palladium catalysis; nanopalladium; organisk kemi; Organic Chemistry;

    Abstract : The major part of this thesis concerns the development of catalytic methodologies based on palladium nanoparticles immobilized on aminopropyl-functionalized siliceous mesocellular foam (Pd0-AmP-MCF). The catalytic activity of the precursor to the nanocatalyst, PdII-AmP-MCF is also covered by this work. READ MORE

  4. 22. Modelling nutrient transport from forest ecosystems to surface waters : The model ForSAFE-2D

    Author : Giuliana Zanchi; Institutionen för naturgeografi och ekosystemvetenskap; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; forest; dynamic modelling; hydrology; biogeochemistry; ecosystem service;

    Abstract : Forests provide multiple products and services which are all are linked to water resources. Trees need water to grow and, at the same time, they change the quality and the quantity of runoff by modifying water and nutrient cycling. READ MORE

  5. 23. Heat and water flows in freezing and thawing soils : numerical modelling, laboratory and field observations

    Author : Helén Engelmark; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vattenteknik; Water Resources Engineering;

    Abstract : A laboratory study of infiltration rates into frozen and unfrozen fine sand, including temperature effects of both soil and infiltration water, is reported. The average infiltration rate varied from about 10.6 mm/min for unfrozen conditions, to about 1-2 mm/min for frozen conditions. READ MORE

  6. 24. Artificial recharge of groundwater for public water supply : potential and limitations on boreal conditions

    Author : Cristina Frycklund; KTH; []
    Keywords : ;

    Abstract : It is motivated by the intentions of Agenda 21 to findalternatives to the increasing dependence on chemical treatmentin the production of public water. Conventional waterworkscommonly include chemicals for removal of organic compounds,for reduction of corrosiveness and for disinfection. READ MORE

  7. 25. EstimatingChloride concentration in surface water and groundwater duet to deicing salt application

    Author : Eva-Lotta Thunqvist; KTH; []
    Keywords : road; deicing salt; monitoring; chloride; catchment area; river basin; simulation; GIS; groundwater; surface water;

    Abstract : A road in operation along with its traffic can pose aserious pollutant threat to groundwater and surface water inits vicinity. Examples of pollutants are metals from thecorrosion of vehicles, rails and poles and the wear of roadsurfaces and tyres; hydrocarbons from the wear of roadsurfaces, tyres, exhausts, oils; sodium chloride from roadsalt; and hazardous goods discharged in accidents. READ MORE