Sökning: "wind field"

Visar resultat 1 - 5 av 292 uppsatser innehållade orden wind field.

  1. 1. Förekomst av snöskytte i hyggesfria metoden schackrutehuggning i Västerbotten

    Kandidat-uppsats, SLU/School for Forest Management

    Författare :Jenny Johansson; [2024]
    Nyckelord :phacidium infestans; kontinuitetsskogsbruk; Norrland;

    Sammanfattning : Skogen är och har länge varit en viktig resurs för länet Västerbotten och den står för cirka 14 procent av den produktiva skogsmarksarealen i Sverige. Skogen i Västerbotten har brukats sedan medeltiden från småskaligt hushållsbehov till storskaligt skogsbruk i modern tid. LÄS MER

  3. 2. Tribological characterization of a ball bearing subjected to an electric field : Electric drivetrain tribology

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Muhammad Umar Farooq; [2023]
    Nyckelord :Ball bearing; electric drivetrain; tribology; electric field; characterization; bearing currents; discharge;

    Sammanfattning : Electric machines are widely used in for instance the automotive industry in electric vehicles and in wind turbines. The electrical machines have mechanical bearings as an integral part used to transmit power and load. In addition, the main function includes reducing friction between interacting surfaces. LÄS MER

  4. 3. Study of oblique whistler waves in coronal mass ejections observed by Solar Orbiter

    Kandidat-uppsats, Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

    Författare :Sofia Lennerstrand; [2023]
    Nyckelord :Oblique whistler waves; Solar physics; Solar Orbiter;

    Sammanfattning : In this paper a search routine in MATLAB was developed in order to find and analyze oblique whistler waves in the data from the ESA and NASA spacecraft Solar Orbiter. Oblique whistler waves are a type of plasma wave which propagate at an angle with respect to the background magnetic field. LÄS MER

  5. 4. Facilitating locations of green energy on land. What can make it successful? - A case study of the Energy Park Veddum Kær

    Master-uppsats, Lunds universitet/Institutionen för kulturgeografi och ekonomisk geografi

    Författare :Karl Felix Flyvbjerg Poulsen; [2023]
    Nyckelord :green energy transformation; Wind turbines; solar panels; case study; path-dependance; successful location; Social Sciences;

    Sammanfattning : This paper investigates what can promote green energy projects on land which consist of solar and wind power. The research is done with an economic geographic framework of path-development. A paradigmatic case study is conducted with scientific semi-structured interviews and short “pop-up interviews” which validated the in-depth interviews. LÄS MER

  7. 5. Addressing Water Scarcity in La Guajira: A Comparative Analysis of Four Water Systems

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Johan Hedstrand Welander; [2023]
    Nyckelord :Drought; wells; desalination; La Guajira; Colombia; windmills; solar panels; MFS; Minor Field Study; development;

    Sammanfattning : During the recent prolonged drought in La Guajira, Colombia, the child mortality rate surged to 23.4 per 1000. With the focal point in rural Alta Guajira, a lack of rainfall and wind resulted in an acute potable water scarcity. LÄS MER