Sökning: "Ray Fall"

Visar resultat 6 - 10 av 58 uppsatser innehållade orden Ray Fall.

  1. 6. Kan tilläggsbehandling med melatonin förbättra prognosen för patienter med COVID-19? : En litteraturstudie

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för kemi och biomedicin (KOB)

    Författare :Emma Djerf; [2022]
    Nyckelord :COVID-19; Sars-CoV-2; coronavirus; melatonin; tilläggsbehandling;

    Sammanfattning : Introduktion. Coronavirus disease 19 (COVID-19) är en virussjukdom som orsakar mild till allvarlig respiratorisk sjukdom, med symtom som andnöd, feber, hosta och trötthet. Risken att bli allvarligt sjuk är hög, med risk för komplikationer som sepsis, tromboembolismer och lungpåverkan. LÄS MER

  3. 7. A study of the gamma-ray emission from the blazar S50716+71 using the Fermi-LAT telescope

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

    Författare :Fredrik Vislander; [2022]
    Nyckelord :AGN; active galactic nuclei; Fermi-LAT; astrophysics; gamma-rays; synchrotron self-Compton; SSC; S50716 71.;

    Sammanfattning : This thesis sums up a bachelor project in which gamma-ray emission from an extra-galactic source (S50716+71) is studied using data collected by the Fermi Large Area Telescope (LAT). The emission consists of 12,5 years of data (April 2008 to February 2020) in the energy range 100 MeV - 300 GeV. LÄS MER

  4. 8. A Ray Tracing Implementation Performance Comparison between the CPU and the GPU

    Kandidat-uppsats, KTH/Datavetenskap

    Författare :Robin Nordmark; Tim Olsén; [2022]
    Nyckelord :;

    Sammanfattning : Ray tracing has gained recent popularity due to the advancement of computer hardware capabilities. The algorithm is used as a rendering technique for computer graphics by tracing rays of light to determine the color of a single pixel, thus simulating the physical behavior of light. LÄS MER

  5. 9. 2D & 3D phase retrieval for propagation-based X-ray phase-contrast tomography

    Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Philip Stjärneblad; [2021]
    Nyckelord :Propagation-based X-ray phase-contrast tomography; PB-PCT; Propagation-based X-ray phase-contrast Imaging; PB-PCI; 2d phase retrieval; 3d phase retrieval; TIE; sinogram consistency; reconstruction artefacts; Science General;

    Sammanfattning : Propagation-based X-ray phase-contrast tomography is a 3d imaging technique that utilizes two-dimensional projections from different angular views $\theta =[0,\pi]$ to reconstruct the 3D object information. The phase-contrast allows for higher feature contrast than conventional transmission tomography, as the phase interference gives rise to a sharp edge contrast. LÄS MER

  7. 10. Optical characterisation of AAO/CsPbBr3 perovskite nanocomposites

    Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Klára Nováková; [2021]
    Nyckelord :perovskite; scintillator; optoelectronics; semiconductor; X-ray detection; Physics and Astronomy;

    Sammanfattning : Direct bandgap metal lead halide perovskites offer promising optoelectronic properties desirable in a wide range of applications including photodetection. However, the incomplete and poor understanding of the photophysical processes taking place in these materials, along with their poor stability, is the bottleneck for optimisation and further development of metal halide perovskite devices. LÄS MER