Sökning: "plasma parameters"

Visar resultat 1 - 5 av 92 uppsatser innehållade orden plasma parameters.

  1. 1. Relativistic attosecond electron pulses by laser wakefield acceleration

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

    Författare :Cornelia Gustafsson; [2020]
    Nyckelord :laser wakefield accelerator; laser wakefield acceleration; attosecond; electron pulses; Physics and Astronomy;

    Sammanfattning : The search for cheaper and more compact accelerators has led to the development of laser-driven plasma-based accelerators. In comparison to conventional particle accelerators, the plasma-based accelerator is inherently insensitive to the breakdown of the acceleration structure and therefore greater accelerating fields can be obtained. LÄS MER

  2. 2. Modeling of the pedestal performance in the DTT tokamak

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad kärnfysik

    Författare :Hampus Nyström; [2020]
    Nyckelord :Fusion; pedestal; DTT;

    Sammanfattning : This master thesis concerns the modeling of the pedestal in the fusion plasma device DTT and its dependence on several plasma parameters. The modeling was performed using the Europed code which is based on the EPED model. Several parameters were found to have a significant impact on the pedestal predictions. LÄS MER

  3. 3. Analysis of Hall effect thrusters using Hybrid PIC simulations and coupling to EP plume

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :David Villegas Prados; [2020]
    Nyckelord :Hallis; SPIS; EP; plume; hybrid PIC; Hall effect; HET; inside channel; plume expansion;

    Sammanfattning : In the last 30 years, numerical models have been developed to properly analyze Hall eect thrusters (HET),leading to a bridge between analytical prediction/empirical intuition and experiments. For companies in thespace sector, these codes serve to much more than simply simulating the thruster, but it provides a fast, cheapand reliable tool for processes such as validation and verication procedures, as well as for technical developmentof the thruster. LÄS MER

  4. 4. Evaluation of Manual and QIAcube miRNA Extraction from Plasma with the miRNeasy Advanced Kit from Qiagen

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Victoria Lindeberg; [2020]
    Nyckelord :;

    Sammanfattning : Sepsis is a syndrome causing millions of deaths every year. The diagnosis today uses several parameters one of which is blood culture. It can take up to 48 hours to get results. Sepsis can lead to major organ dysfunction in a span of four hours; therefore time is of the essence. LÄS MER

  5. 5. Field study of the drought’s impact on feeding strategy and biological parameters in early lactation dairy cattle

    Master-uppsats, SLU/Dept. of Animal Nutrition and Management

    Författare :Mikaela Würtz; [2019]
    Nyckelord :dairy cattle; drought; energy balance; feeding; metabolism;

    Sammanfattning : The summer of 2018 was unusually warm and dry. For animal production, this resulted in poor pastures, reduced harvests of crops, such as roughage and grains, and increased risk for heat stress in the animals. The drought led to problems as in shortage of animal feed, which made the feeding of dairy cattle difficult. LÄS MER