Sökning: "hydraulic conductivity"

Visar resultat 6 - 10 av 57 avhandlingar innehållade orden hydraulic conductivity.

  1. 6. Vascular effects of prostacyclin in cat skeletal muscle and in the traumatised rat brain

    Författare :Peter Bentzer; Anestesiologi och intensivvård; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; reflection coefficient; cerebral blood flow; hydraulic conductivity; oedema; capilary filtration coefficient; endothelin-1; ATP-dependent potassium channels; Physiology; Fysiologi;

    Sammanfattning : Disturbances in microvascular function may be important for tissue damage in many disease states. Prostacyclin, a substance produced by endothelial cells, is important for the maintenance of normal vascular homeostasis and is a potential drug for treatment of microvascular dysfunction, but indications and optimal dosage remains to be established. LÄS MER

  3. 7. Critical hydraulic gradients in tailings dams : comparison to natural analogies

    Författare :Isabel Jantzer; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Soil Mechanics; Geoteknik;

    Sammanfattning : The increasing demand of metals and minerals has made it economical for the mining industry to mine low-grade deposits, which results in immense quantities of by-products. In fact, such by-products, i.e. tailings, are the largest waste volumes produced on earth. LÄS MER

  4. 8. Climate and geographical influence on the performance of infiltration-based facilities for managing runoff – Temporal and spatial variability

    Författare :Ivan Mantilla; Maria Viklander; Tone Merete Muthanna; Kelsey Flanagan; Vegard Nielsen; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Green infrastructure; hydrological performance; infiltration capacity; climatic pattern; saturated hydraulic conductivity; VA-teknik; Urban Water Engineering;

    Sammanfattning : Climate change is expected to lead to more intense and severe rainfall events in the future, significantly increasing the risk of urban flooding. This change, characterized by spatial and temporal shifts in precipitation patterns, presents a challenge to the capacity of existing urban drainage systems, which may lead to higher runoff volumes than they were initially designed to handle. LÄS MER

  5. 9. Soil Management Strategies to Establish Vegetation and Groundwater Recharge when Restoring Gravel Pits

    Författare :Karin Palmqvist Larsson; KTH; []
    Nyckelord :groundwater protection; soil physical properties; CoupModel; unsaturated conductivity; water retention; transpiration; soil evaporation;

    Sammanfattning : The removal of vegetation and overburden changes the naturalwater purifying processes and thus decreases the groundwaterprotection in gravel pit areas. The sand and gravel depositsusedfor aggregate extraction in Sweden are also often valuablefor extraction of groundwater as a drinking water resource. LÄS MER

  7. 10. Multi-Scale Surface Water-Groundwater Interaction : Implications for GroundwaterDischarge Patterns

    Författare :Babak Brian Mojarrad; Anders Wörman; Joakim Riml; Jan Fleckenstein; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; groundwater flow; hyporheic zone; multi-scale modeling; spectral analysis; fragmentation of discharge zones; characteristic parameters; Hydraulik och teknisk hydrologi; Hydraulic and Hydrologic Engineering;

    Sammanfattning : Rivers and aquifers are continuously exchanging water, driven by processes that occur on various temporal and spatial scales, ranging from small streambed features to large geological structures. The interaction between these two components occurs in permeable sediments below the stream channel, called the hyporheic zone. LÄS MER