Sökning: "polarisation"

Visar resultat 11 - 15 av 144 uppsatser innehållade ordet polarisation.

  1. 11. Developing an educational tool for simulations of quantum key distribution systems

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Erik Åkerberg; Erik Marton Åsgrim; [2023]
    Nyckelord :;

    Sammanfattning : Quantum key distribution (QKD) is the idea of using quantum systems to securely communicate a shared encryption key between two parties. In contrast to classical methods of encryption, QKD utilizes fundamental quantum properties such as superposition and entanglement to encode information in a way that guarantees security. LÄS MER

  3. 12. Three-body decay as a baryon polarizer

    Kandidat-uppsats, Uppsala universitet/Kärnfysik

    Författare :Carl Johan Königsson; [2023]
    Nyckelord :Three-body decay; polarization; CP violation; hyperon; resonance; Trekroppssönderfall; polarisation; CP-brytning; hyperon; resonans;

    Sammanfattning : According to the standard model, the size of CP violation in the weak decay Λ → pπ- is predicted to be ∼ 10-5. This means that a very high precision is needed if we want to be able to measure it. LÄS MER

  4. 13. Characterisation of Ionic Liquid doped Polybenzimidazole Membranes for Application in High-Temperature Proton Exchange Membrane Fuel Cells

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Adam Jacobsson Trönndal; [2023]
    Nyckelord :Fuel cells; Phosphoric acid; Polybenzimidazole; PA-PBI; Ionic liquid; IL; High temperature proton exchange membrane fuel cell; HT-PEMFC; Electrochemical impedance spectroscopy; EIS; IL-PBI; Chemical engineering; Technology and Engineering;

    Sammanfattning : In this study four membranes were tested and evaluated against each other for use in high-temperature proton exchange membrane fuel cell (HT-PEMFC) applications. A phosphoric acid (PA) doped polybenzimidazole (PBI) membrane, was used as a reference as the current state-of-the-art. LÄS MER

  5. 14. Communication and Error Correction via Polarisation of Single Photons and Time Ordering

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Shek Lun Leung; [2023]
    Nyckelord :Quantum Technology; Physics; Photon; Telecommunication; polarization; time ordering; BPPM; PPM; OOK; Simulation; quantum communication; Kvantteknologi; Fysik; Foton; Telekommunikation; polarisering; tidsordning; BPPM; PPM; OOK; Simulering; kvantkommunikation; satellite communication;

    Sammanfattning : This research study aims to investigate the capacity of single photons to carry information through polarization and time ordering and proposes a protocol called Beyond Pulse Position Modulation (BPPM) to improve photon-based communication reliability over longer distances with limited power. Such a protocol may be used in any communication scenario where energy efficiency is important, e. LÄS MER

  7. 15. A Culture War in Swedish Politics? : Cultural policy discourse from a perspective of securitisation theory

    Master-uppsats, Umeå universitet/Statsvetenskapliga institutionen

    Författare :Dennis Degerfeldt; [2023]
    Nyckelord :cultural policy; culture war; discourse analysis; discourse theory; securitization; rhetoric; culture canon;

    Sammanfattning : Relating to issues of democracy and security, the thesis examines suggested parallels inSwedish politics to the culture war phenomenon in the United States. Are there signs of asimilar development in Sweden? By examining political rhetoric by the political parties in theRiksdag, the aim is to find out how the parties relate to the concept of culture, what purposecultural policy should have and whether there are indications of securitisation in the discourseand potential implications for cultural polarisation. LÄS MER