Sökning: "spectral analysis"

Visar resultat 1 - 5 av 240 uppsatser innehållade orden spectral analysis.

  1. 1. A comparison of different machine learning algorithms applied to hyperspectral data analysis

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Axel Vikström; [2021]
    Nyckelord :;

    Sammanfattning : Hyperspectral image analysis works with image data where each pixel contains hundreds of wavelengths acquired from spectral measurements. It is a growing field of research in the sciences and industries because it can distinguish visually similar objects. LÄS MER

  2. 2. Psychedelic oscillations : A systematic review of the electrophysiological correlates of classic psychedelics

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Shabo Annerud Awrohum; [2021]
    Nyckelord :Electrophysiological; psychedelic; signal diversity; spectral analysis; functional connectivity;

    Sammanfattning : Background: Recently there has been a revitalization in research on classic psychedelic substances. This class of drugs has been found to produce intense and profoundly meaningful experiences, and offers a unique opportunity to study the neural correlates of the sense of self. LÄS MER

  3. 3. On the Possibility of Probing Early Matter Domination with Primordial Black Holes

    Master-uppsats, KTH/Fysik

    Författare :Isak Stomberg; [2021]
    Nyckelord :Primordial Black Holes; Early Matter Domination; Master’s Thesis; Primordiala svarta hål; tidig materiadominans; mastersarbete;

    Sammanfattning : Primordial black holes (PBHs) are expected to form in the very early universe, and therefore, we could use them to probe pre­BBN times. Astrophysical observations permit the placement of bounds on the abundance of PBHs. LÄS MER

  4. 4. Comparison of Fatigue Life Evaluation Methods

    Master-uppsats, KTH/Hållfasthetslära

    Författare :Louise Hedberg Lundblad; Anna Lund; [2021]
    Nyckelord :Solid Mechanics; Fatigue; Time history methods; Spectral methods; Truck components; Road induced vibrations; Hållfasthetslära; Utmattning; Tidshistoriksmetoder; Spektrala metoder; Lastbilskomponenter; väginducerade vibrationer;

    Sammanfattning : The aim of this thesis is to investigate a selected set of fatigue life calculation methods and evaluate if they are suitable for fatigue life estimation of truck components at Scania. Failure due to fatigue can be cause by road induced vibrations, which is an inevitable phenomenon trucks are exposed to. LÄS MER

  5. 5. A gamma-ray study of a highly variable blazar : The Fermi-LAT analysis and the modeling of the FSRQ PKS 1510–089

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Författare :Nadja Bollström; [2021]
    Nyckelord :active galactic nuclei; AGN; astrophysics; jet; PKS 1510-089; Fermi; external Compton model; gamma-rays;

    Sammanfattning : The subject of this thesis is the analysis and modeling of the active galactic nucleus PKS 1510-089. The aim is to present a thorough background of active galactic nuclei combined with the analysis and modeling of a specific active galactic nucleus. The results will then be  linked to previous research and theories about active galactic nuclei. LÄS MER