Sökning: "Zig Zag"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Zig Zag.

  1. 1. Prospects for a Free Electron Laser at the FemtoMAX Beamline

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

    Författare :Johan Holmberg; [2024]
    Nyckelord :Free Electron Lasers; FEL; synchrotron radiation; MAX IV; FemtoMAX; GENESIS 1.3; XFEL; X-rays; soft X-rays; Physics and Astronomy;

    Sammanfattning : A Free Electron Laser (FEL), is a device that generates extremely coherent and brilliant radiation using electrons accelerated to relativistic velocities in a particle accelerator. The process utilises similar equipment to what is used at a synchrotron source like MAX IV, but in addition there is an interaction between the relativistic electron beam and the generated radiation to achieve an exponential growth in radiation intensity. LÄS MER

  3. 2. Feasibility Study of X-ray Free Electron Lasers in Fourth Generation Storage Rings

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

    Författare :Jordis Hansen; [2023]
    Nyckelord :XFEL; Storage Ring; Synchrotron Radiation; Physics and Astronomy;

    Sammanfattning : This thesis studies the feasibility of a cavity based X-ray free electron laser in a fourth generation storage ring. The cavity design allows for modulation of the electron beam over several passes through the undulator. Simulations based on the PETRA IV facility are done to create the photon flux spectrum of a light pulse produced by an undulator. LÄS MER

  4. 3. Modelling and Control of the Steering in an Articulated Forklift using Rapid Control Prototyping

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Alexander Lilja; Filip Leijonhufvud; [2023]
    Nyckelord :;

    Sammanfattning : This report focuses on the steering of a Very Narrow Aisle (VNA) forklift, which undergoes frequent transitions between manual and wire guidance modes. Manual operation is employed outside narrow aisles, while wire guidance mode is utilized within them. LÄS MER

  5. 4. Bättre kurskontroll-och styregenskaper för Project Oceanbirds experimentbåt

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

    Författare :Marcus Olivecrona; Edvin Hagberg; [2022]
    Nyckelord :oceanbird; roder; centerbord; segling;

    Sammanfattning : Sjötransport står i dagsläget för 80 % av vår globala godstransport och representerar3 % av de globala utsläppen. Åtgärder tas för att minska utsläppen och rederietWallenius Marine har ambitionen att utveckla ett fartyg som med vindenergi tar sigframåt, något som skall minska dess utsläpp med upp till 90 %. LÄS MER

  7. 5. On Meyniel's conjecture and the Zig-Zag Theorem : Cops and robbers on random graphs

    Kandidat-uppsats, Umeå universitet/Institutionen för matematik och matematisk statistik

    Författare :Clara Nygren; [2020]
    Nyckelord :Cops and robbers; vertex pursuit; random graphs;

    Sammanfattning : This essay will present the vertex pursuit game of cops and robbers and the problem that made it famous: Meinyel's conjecture. The conjecture stood unproved from 1987 until 2010 when Łuczak and Prałat proved the conjecture with their "Zig-Zag Theorem", which is also covered in the essay. .. LÄS MER