• Intermittent fluctuations due to Lorentzian pulses in turbulent thermal convection 

  Decristoforo, Gregor; Theodorsen, Audun; Garcia, Odd Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-03)

  Turbulent motions due to flux-driven thermal convection are investigated by numerical simulations and stochastic modeling. Tilting of convection cells leads to the formation of sheared flows and quasi-periodic relaxation oscillations for the energy integrals far from the threshold for linear instability. The probability density function for the temperature and radial velocity fluctuations in the ...
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  Blob interactions in 2D scrape-off layer simulations 

  Decristoforo, Gregor; Militello, Fulvio; Nicholas, Thomas; Omotani, John; Marsden, Chris; Walkden, Nick; Garcia, Odd Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-01)

  Interaction of coherent structures known as blobs in the scrape-off layer of magnetically confined plasmas is investigated. Isolated and interacting seeded blobs, as well as full plasma turbulence, are studied by two-dimensional numerical simulations. The features of the blobs (position, size, amplitude) are determined with a blob tracking algorithm, which identifies them as coherent structures with ...
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  Feeding ecology and interactions of invasive vendace and DR whitefish in the Pasvik watercourse 

  Høstmark, Malin Solheim (Master thesis; Mastergradsoppgave, 2021-02-15)

  Introductions and invasions of species outside their natural range can have devastating effects on the native species and be a major driver of biodiversity change. When the zooplanktivorous vendace invaded the Pasvik watercourse in the 1990s, it quickly took over the ecological role of the native DR whitefish. In the upper part of the watercourse, DR whitefish was displaced from the pelagic habitat ...
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  Gastrointestinal nematodes in Icelandic reindeer (Rangifer tarandus tarandus) 

  Dembereldagva, Selengemurun (Master thesis; Mastergradsoppgave, 2021-01-18)

  Reindeer (<i>Rangifer tarandus</i>) are host to gastrointestinal-tract nematodes (GINs) throughout the world. Some populations of reindeer exist in almost complete isolation from others, and this can have a key influence on the species and infection rates of GINs. An example of an isolated reindeer population occurs in Iceland. In this study, I have investigated the prevalence of GINs in Icelandic ...
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  OPS som ny standardkontrakt Avdekket behov eller konstruert sannhet 

  Sundsvalen, Åse Johnsen (Master thesis; Mastergradsoppgave, 2020-12-15)

  Oppgaven tar for seg OPS-modellen og skal redegjøres for hvorvidt det foreligger et behov for en ny standardkontrakt. Det vil herunder tas utgangspunkt i faktiske eksempler fra næringslivet i Norge, men også den danse utviklingen innenfor OPS-prosjektene.

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