Sökning: "Applied Physics"

Visar resultat 11 - 15 av 274 uppsatser innehållade orden Applied Physics.

  1. 11. Superconducting gates for InP HEMTs

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Sebastian Alveteg; [2023]
    Nyckelord :Cryogenic electronics; HEMT; Superconductors; Applied Physics; Kryogenisk elektronik; HEMT; Supraledare; Tillämpad fysik;

    Sammanfattning : The thesis examines the prospects of using the superconductor NbN as the gatemetal for an InP HEMT. A HEMT or High Electron Mobility Transistor is aheterostructure transistor engineered to reach very high electron mobility. InPHEMTs are used as cryogenic Low Noise Amplifiers (LNAs), which have increasedin demand as quantum computing is scaling up. LÄS MER

  3. 12. Designbaserad studie om det fysikaliska fenomenet flyta och sjunka med förskolebarn. : "Vattnet har muskler" och myntet är "starkt"!

    Uppsats för yrkesexamina på grundnivå, Karlstads universitet

    Författare :Kornelia Trzeciak; Olga Ten; [2023]
    Nyckelord :float and sink; everyday concepts; previous experiences; metaphors; correct scientific explanations; flyta och sjunka; vardagsbegrepp; tidigare erfarenheter; metaforer; korrekta vetenskapliga förklaringar;

    Sammanfattning : The purpose of this study is to contribute with knowledge about how an investigative approach can be used as a valuable platform to develop preschool children's understanding of the physical phenomenon of floating and sinking. The participants were 4–5-year-old children from a preschool in Central Sweden. LÄS MER

  4. 13. 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

  5. 14. A Machine Learning Approach to Skin Cancer Delineation on Photoacoustic Imaging

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Beräkningsbiologi och biologisk fysik - Genomgår omorganisation

    Författare :Alice Fracchia; [2023]
    Nyckelord :Skin cancer; carcinoma; photoacoustic imaging; ultrasound imaging; machine learning; dimensionality reduction; sandpiles algorithm; active contour; multilayer perception MLP ; convolutional neural networks CNN ; autoencoder; Physics and Astronomy;

    Sammanfattning : Skin cancer is a growing public health concern due to its prevalence among the population. Current clinical procedures require high invasiveness and multiple surgeries, which are responsible for patient discomfort and high medical expenses. LÄS MER

  7. 15. The solar abundance of beryllium : constraining the solar problem via non-LTE modelling

    Kandidat-uppsats,

    Författare :Daria Ogneva; [2023]
    Nyckelord :atomic processes; radiative transfer; abundance;

    Sammanfattning : Accurately determining the solar abundance of beryllium is a key to calibrate transport processes at the base of convective zone, which in turn is an improvement upon existing solar models and general understanding of the physical processes within the Sun. To determine an abundance, assumptions about the solar atmosphere must be made. LÄS MER