Sökning: "electric field domain"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden electric field domain.

  1. 1. Investigating the density evolution of charged particles inside a square domain

    L3-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Wenhan Zhou; [2023]
    Nyckelord :N-body problem; PINN;

    Sammanfattning : In this work, I propose a hybrid particle simulator for charged particles. The simulator consists of a physics-informed neural network, which can handle arbitrary external electric fields with continuous coordinates by solving the Poisson equation, and a graph-based algorithm that computes the interacting forces between the particles. LÄS MER

  3. 2. Cosmic Dust Detection by the Solar Orbiter Using Machine Learning

    Kandidat-uppsats, Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

    Författare :Joar Lönngren; Ludwig Tiston; [2023]
    Nyckelord :Machine Learning; Neural Network; Cosmic Dust; Solar Orbiter; Space Physics; Space Dust;

    Sammanfattning : This project aims to investigate neural network systems as an effective tool for the in-space captured dust impact signal detection. Cosmic dust is the nanometre to micrometre fine-sized particles that exist in the interplanetary region. They originate from comets, asteroids, the planets and their moons and rings, or even the interstellar region. LÄS MER

  4. 3. Dielectric Response and Partial Discharge Characteristics of Stator Winding Insulation System with SiC Stress Grading

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

    Författare :Amar Abideen; [2020]
    Nyckelord :Stator Insulation; Dielectric Frequency Response; Polarization Depolarization Current; Insulation Modelling; FEM simulation;

    Sammanfattning : The typical construction of a stator coil includes the use of end corona protection (ECP)coating, which is made of semi-conductive materials like silicon carbide (SiC). Thepurpose of ECP is to smooth the electric stress distribution near the slot exit, limitingthe electric field and partial discharge (PD) activity within the insulation system. LÄS MER

  5. 4. Electromagnetic Homogenization-simulations of Materials

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Julia Törnqvist; [2019]
    Nyckelord :relative permittivity; electromagnetic simulations; FDTD method; scattering parameters; transmitted electric field; reflected electric field; plane wave; wave guides; percolation;

    Sammanfattning : This thesis aims to determine the distribution of the relative permittivity for random mixtures of material using electromagnetic simulations. The algorithm used in the simulations is the FDTD method which solves Maxwell's equations numerically in the time-domain. LÄS MER

  7. 5. Temporal Characterization and Intensity Contrast Improvement of Few-cycle Laser Pulses

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Xiaoying Zhang; [2019]
    Nyckelord :;

    Sammanfattning : Due to the unique combination of properties of high intensity and few optical cycle pulse duration, the ultrashort laser pulses have widespread applications in pump-probe spectroscopy and laser-plasma interaction. Correspondingly, it is critical to precisely measure the electric field in the temporal or spectral domain. LÄS MER