Sökning: "distribution"

Visar resultat 31 - 35 av 7048 avhandlingar innehållade ordet distribution.

  1. 31. Distribution and activity of pelagic fish - acoustic studies in the Baltic Sea

    Författare :Tomas Didrikas; Sture Hansson; Thomas Mehner; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Pelagic; fish; hydroacoustic; distribution; activity; Baltic; Biology; Biologi;

    Sammanfattning : Fisheries agencies around the Baltic Sea use hydroacoustics to assess stock sizes of herring and sprat. These assessments rely on the assumption that the acoustic properties of Baltic clupeids are the same as North Sea herring. LÄS MER

  3. 32. The radium distribution in some Swedish soils and its effects on radon emanation

    Författare :Cecilia Edsfeldt; KTH; []
    Nyckelord :distribution; emanation; extraction; glacial till; podzol; Ra; radium; radon; Rn; sequential soil; spodosol; Th; thorium; U; uranium; variability;

    Sammanfattning : The aim of this study has been to clarify how the radiumdistribution in soils affects the radon emanation. Thedistribution of radium, uranium and thorium has been determinedusing sequential extractions. In the study, soils from twodifferent locations were investigated. LÄS MER

  4. 33. Pelagic Fish Distribution and Dynamics in Coastal Areas in the Baltic Sea Proper

    Författare :Thomas Axenrot; Sture Hansson; Stein Kaartvedt; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; herring; Baltic; hydroacoustic; distribution; behaviour; Biology; Biologi;

    Sammanfattning : Pelagic fish distribution and diel behaviour patterns were studied in coastal areas in the north-western Baltic Sea Proper to understand more about how fish distribution and behaviour might affect planning and analyses of results of hydroacoustic surveys (Papers I and II). The vertical distribution of fish at night from spring to autumn showed seasonal and annual trends that could be explained by predictable and consistent seasonal changes, e. LÄS MER

  5. 34. Towards Intelligent Distribution Systems: Solutions for Congestion Forecast and Dynamic State Estimation Based Protection

    Författare :Ankur Srivastava; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; future-readiness; renewables.; future distribution systems; distribution systems protection; distribution system operator; photovoltaics; probabilistic power flow; Congestion forecast; dynamic state estimation;

    Sammanfattning : The electrical distribution systems are undergoing drastic changes such as increasing penetration level of distributed renewable energy sources, energy storage, electrification of energy-efficient loads such as heat pumps and electric vehicles, etc., since the last decade, and more changes are expected in the future. LÄS MER

  7. 35. The Role of Suppliers and Resellers : Cases of Timber Product Distribution Channels

    Författare :Wei Guan; Jakob Rehme; Staffan Brege; Tomas Nord; Anders Roos; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Distribution channels; roles; role changes; downstream vertical integration; offerings; timber products;

    Sammanfattning : This dissertation aims to explain the impacts of distribution channel developments on the roles of timber product distribution channel actors. The role of channel actors in this dissertation is defined as the structured behaviour pattern that combines activities and resources in distribution channels. LÄS MER