Sökning: "Physics and Astronomy"

Visar resultat 1 - 5 av 1018 uppsatser innehållade orden Physics and Astronomy.

  1. 1. Nanoscale detection of insulin granule sub-structures using dSTORM imaging

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

    Författare :Yu Hong; [2020]
    Nyckelord :islet β-cells; dSTORM imaging; Alexa Fluor 647; Physics and Astronomy;

    Sammanfattning : Diabetes mellitus is a global disease, mainly caused by insufficient insulin secre- tion from pancreatic islet β-cells. Insulin is stored in the granules of islet β-cells and released in response to extracellular stimuli e.g. glucose. LÄS MER

  3. 2. Test setup for LDMX HCal readout

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

    Författare :Joshua Greaves; [2020]
    Nyckelord :Dark matter; LDMX; dark photon; hadronic calorimeter; photomultiplier tube; Physics and Astronomy;

    Sammanfattning : It is evident from cosmological observations such as the Cosmic Microwave Background, and the motion of galaxies, that the universe consists of approximately 5 times more mass than visible matter can account for. The Light Dark Matter eXperiment (LDMX) will take a unique approach in its hunt for dark matter; it will look for missing momentum signals in electron collisions with a Tungsten target, and will be looking in the sub GeV energy range for evidence of dark matter interactions. LÄS MER

  4. 3. Implementation of Scheimpflug Lidar for Entomological Monitoring of Bark Beetles

    Magister-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Jonathan Peterson; [2020]
    Nyckelord :Scheimpflug Lidar; Lidar; Bark beetles; Forestry; Entomological monitoring; Physics and Astronomy;

    Sammanfattning : Bark beetles are responsible for great damages to Swedish forestry every year. This project focuses on a method of entomological lidar called Scheimpflug lidar to detect and monitor bark beetles. Scheimpflug lidar uses old techniques from photography to achieve a deep field of focus to resolve objects over long distances. LÄS MER

  5. 4. Coulomb drag in parallel nanowires

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :David Dai; [2020]
    Nyckelord :Coulomb drag; nanowire; Physics and Astronomy;

    Sammanfattning : In this project the transport phenomenon Coulomb drag is studied in a 1D system comprised of two nanowires in parallel. Specifically, a driving current across the active wire generated a drag current in the passive wire, and we studied how Coulomb drag influenced both the driving and drag currents. LÄS MER

  7. 5. Investigating the Use of Microfluidics in X-ray Spectroscopy at MAX IV Laboratory

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/MAX IV-laboratoriet

    Författare :James Wootton; [2020]
    Nyckelord :X-ray Spectroscopy; Microfluidics; EXAFS; XANES; Physics and Astronomy;

    Sammanfattning : The purpose of this project was to investigate the use of microfluidics for X-ray spectroscopy at MAX IV Laboratory. A Silicon and Glass chip was produced, and its suitability for carrying samples in solution was tested. LÄS MER