Sökning: "Radius Search"

Visar resultat 1 - 5 av 17 uppsatser innehållade orden Radius Search.

  1. 1. Search for transiting exoplanets in globular clusters

    Kandidat-uppsats, Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Författare :Oskar Nilsson; [2023]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : This project consists of a transit search in the Messier 3 Globular cluster with the goal to assess the difficulties of observing planetary transits in globular clusters. M3 was observed for a short period of time and by performing PSF fitting, flux measurements could be done to extract light curves of the 290 stars that are included in this project. LÄS MER

  3. 2. Heterogena landskap och artförekomst : En studie om hur landskapets fördelning av biotoper påverkar dess bärighet för biologisk mångfald

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Louise Säf; [2022]
    Nyckelord :;

    Sammanfattning : Förändrad markanvändning i form av bebyggelse, maskinkörning, jordbruk, avverkning har under en längre tid bidragit till en förlust av både biologisk mångfald och biotoper. Idag beräknas en tredjedel av jordens landyta bestå av åkermark och betesmark. LÄS MER

  4. 3. Studies of Dark Showers for Present and Future Colliders

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

    Författare :Nicoline Krogh Hemme; [2022]
    Nyckelord :high-energy particle physics; dark matter; collider physics; beyond the standard model; Physics and Astronomy;

    Sammanfattning : In this work we explore a strongly-interacting dark sector with a Z’ portal to the Standard Model. We focus on the dark shower phenomenology and their semi-visible jet signatures with a strong emphasis on first principles of the theory. LÄS MER

  5. 4. Exploring the Diversity of Exoplanets

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Rebecka Svensson; [2021]
    Nyckelord :Exoplanets; Super-Earth; Sub-Neptune;

    Sammanfattning : The search for extrasolar planets had been ongoing for many years when Mayorand Queloz discovered 51 Pegasi b in 1995. It was a giant gas planet similar to Jupiter, but with a larger radius and of only half of Jupiter’s mass. Theso called Hot Jupiter was observed to orbit its host star 7 times closer thanMercury is orbiting the Sun. LÄS MER

  7. 5. Comparison of spatial partitioning data structures in crowd simulations

    Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Jakob Kratz; Viktor Luthman; [2021]
    Nyckelord :Radius Search; Spatial Partitioning; Agent- Based Simulation; Boids; Grid; Kd- Tree; Quadtree; Maximum Velocity; Radius Search; Spatial Partitioning; Agent- Based Simulation; Boids; Grid; Kd- Tree; Quadtree; Maximum Velocity;

    Sammanfattning : This report investigates how the construction and query time of multiple spatial partitioning data structures is impacted by spatial distribution of and number of agents in a crowd simulation. In addition a method is investigated for updating the data structures less frequently at the cost of increasing the radius queried, without affecting the correctness of the queries. LÄS MER