Sökning: "Bergeforsen"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet Bergeforsen.

  1. 1. Impact of Great cormorant (Phalacrocorax carbo sinensis) on post-smolt survival of hatchery reared salmon (Salmo salar) and sea trout (Salmo trutta)

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Carolina Gavell; [2018]
    Nyckelord :great cormorant; salmon; sea trout; sea trout; grey seal; post-smolt survival;

    Sammanfattning : To compensate for the losses due to altered stream habitat large amounts of hatchery-reared Atlantic salmon (Salmo salar) and sea trout (Salmo trutta) are released into the Baltic Sea each year. During the last decades there have been an overall declining trend in the post-smolt survival of both hatchery reared and wild salmon in the Baltic Sea. LÄS MER

  3. 2. Sakernas Internet och Radiofrekvensidentifiering : En central anpassad lösning för att läsa unika användare med hjälp av populär teknik

    Kandidat-uppsats, Mittuniversitetet/Avdelningen för informationssystem och -teknologi

    Författare :Mattias Sundling; [2017]
    Nyckelord :;

    Sammanfattning : The Internet of Things is a growing market that creates opportunities and chal- lenges for companies. Bergeforsen Obstacle Race is an obstacle race which 2016 attracted 250 people to participate. LÄS MER

  4. 3. Layout of spillway aerator air ventsand its effect on air supply

    Master-uppsats, KTH/Mekanik

    Författare :Gustav Daggenfelt; [2017]
    Nyckelord :;

    Sammanfattning : Chute aerators are constructed to protect spillways from cavitation damage.They function by launching the water ow as a jet and supplying airunderneath since having air entrained into the water is an eective way tomitigate cavitation. LÄS MER

  5. 4. CFD modelling of dam spillway aerator

    Magister-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Raphaël Damiron; [2015]
    Nyckelord :3D flow; VOF; CFD; aerator; spillway; Technology and Engineering;

    Sammanfattning : The purposes of this master thesis are the simulation of the aerator air flow driven by the spillway water flow in the Bergeforsen dam and the behavior of the flow in the stilling basin. Aerators are employed to supply air at critical locations in the flow where low pressure and cavitation may occur in order to protect the structure. LÄS MER

  7. 5. Hot och risker med dricksvattenförsörjning : Förutsättningari tid och rum för bevarande av Sundsvalls och Timrås dricksvattenförsörjning

    Kandidat-uppsats, Institutionen för ekologi, miljö och geovetenskap

    Författare :Emma Ramström; [2013]
    Nyckelord :Dricksvatten Avsloppsvatten Översvämning Geologi;

    Sammanfattning : This study describes what impact activity within Wifstas, Matfors,Grönstas and Nolbys water protection areas have on the quality of the drinkingwater. It considers the use of the area, environmentally dangerous activitiesin the past and present, the geology’s part, what harm hydroelectric power damsmay cause if they break and how climate change might affect the area in thefuture. LÄS MER