Sökning: "point spread function"

Visar resultat 1 - 5 av 38 uppsatser innehållade orden point spread function.

  1. 1. UNGA VUXNAS UPPFATTNINGAR OM FALSKA NYHETER OCH DERAS TILLIT TILL NYHETSKANALER. En kvalitativ intervjustudie

    Kandidat-uppsats, Göteborgs universitet/Institutionen för journalistik, medier och kommunikation

    Författare :Andrea Ångman; [2024-03-01]
    Nyckelord :Fake news;

    Sammanfattning : The purpose of this study is to look into what low-educated and highly-educated young adults aged 20-30 think affects the spread of fake news and how they feel that their trust in news sources is affected when they become increasingly exposed to it. By mapping the respondents' view of the phenomenon of fake news and its influence on their information intake, the study aims to understand whether their trust in news sources is affected. LÄS MER

  3. 2. Probing Charm Production with Three-Particle Correlations in pp Collisions

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Partikel- och kärnfysik

    Författare :Kim Haupt; [2023]
    Nyckelord :pp collisions; charm production; three-particle correlation; Pythia; Physics and Astronomy;

    Sammanfattning : This thesis aims to investigate possible correlations between charm production and baryon production in proton-proton collisions through three-particle correlations. The question attempted to be answered is where, for a given charmed baryon, the balancing anti-charm particle and balancing anti-baryon are located. LÄS MER

  4. 3. Våtmarkers relation till skogsbränder : En litteraturstudie och GIS-analys av intakta och utdikade våtmarker i borealt svenskt skogslandskap

    Kandidat-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Rufus Rune; Emilia Tidblad; [2023]
    Nyckelord :wetland; wildfire; peat; fire spread; GIS; drainage; våtmark; skogsbrand; torv; brandspridning; GIS; utdikning;

    Sammanfattning : Som en följd av global uppvärmning blir det allt viktigare med resiliens mot klimatkrisens konsekvenser, däribland mer frekventa skogsbränder. Då våtmarker kan behålla vatten och ge resiliens mot torka och bränder är det intressant att undersöka relationen mellan våtmarker och skogsbränder. LÄS MER

  5. 4. Effects of reconstruction parameters on the image quality and quantification of PET images from PET/MRI and PET/CT systems

    Master-uppsats,

    Författare :Ali Amena Hussain; [2022-03-09]
    Nyckelord :Medical physics; PET CT; PET MRI; OSEM; BPL; NEMA IQ; positron emission tomography; magnetic resonance imaging; computed tomography; ordered Subset Expectation Maximization; The Bayesian Penalized Likelihood;

    Sammanfattning : Aim: To study how reconstruction parameters affect the positron emission tomography (PET) image quality and quantitative results for the different lesion to background radioactivity ratios in three different PET systems. Introduction: Multimodality imaging that combines magnetic resonance imaging (MRI) or computed tomography (CT) with a PET system can produce medical images containing both functional and anatomical information. LÄS MER

  7. 5. Feasibility of single time point dosimetry during 177Lu-PSMA-617 treatments of prostate cancer

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Elias Nilsson; [2022]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Introduction: Standard dosimetry methods for radionuclide therapies re- quire imaging at multiple time points post injection. An alternative method has been presented in the literature that uses previously acquired pharma- cokinetic data to create so-called dose factors. LÄS MER