Sökning: "coupled problem"

Visar resultat 16 - 20 av 226 uppsatser innehållade orden coupled problem.

  1. 16. Modeling self-heating and dry matter loss in large-scale biomass storage

    Master-uppsats, KTH/Kemiteknik

    Författare :Johan Qviström; [2022]
    Nyckelord :Modell; biomass; storage; self-heating; dry matter loss; Modell; biomassa; förvaring; uppvärmning; torrsubstansförlust;

    Sammanfattning : Materialförluster och självuppvärmning är ett vanligt problem vid lagring av biomassa i stor skala. Biomassan som lagras bryts med tiden ned av mikroorganismer och kemiska processer vilket resulterar i en förlust av torrsubstans, ofta kring 1-4% per månad. LÄS MER

  3. 17. Deep reinforcement learning for isocenter placement in Gamma Knife® radiosurgery

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Dmitrijs Kass; [2022]
    Nyckelord :;

    Sammanfattning : Disposition of isocenters inside the brain tumor is of paramount importance for the quality of the Leksell Gamma Knife® radiosurgery. This work presents a novel approach based on deep reinforcement learning aimed at optimizing isocenter locations. LÄS MER

  4. 18. Comprehensively Planning for Peace? : A Case Study of Trident in the Three Streams in 2015 and 2016

    Master-uppsats, Stockholms universitet/Institutionen för ekonomisk historia och internationella relationer

    Författare :Okopi Ato; [2022]
    Nyckelord :;

    Sammanfattning : A case study research strategy and secondary and content analysis was adopted to investigate what blocked a comprehensive discourse from the agenda of Trident renewal from 2015 to 2016 and the constraints that blocked action. Trident renewal was a policy window, which is a critical fleeting opportunity to change the agenda. LÄS MER

  5. 19. Influence of hydrogen and carbides on high temperature cracking in cast Inconel

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

    Författare :Gunnar Dufwa; [2022]
    Nyckelord :Hydrogen embrittlement; carbide; finite element method; dislocation dynamics;

    Sammanfattning : Hydrogen embrittlement is a well-known source of cracking in metallic mechanical elements. This work studies the influence of hydrogen and carbides on the crack formation in a castnickel-alloy-component in a selective catalytic reduction system. LÄS MER

  7. 20. Extraction efficiency of four pesticides using the QuEChERS extraction method and analysis by HPLC/DAD

    Kandidat-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Honia Rasul; [2022]
    Nyckelord :analytical chemistry; pesticides; QuEChERS; soil; Chemistry;

    Sammanfattning : A cleanup step is essential from an analytical perspective, to improve the chance of quantification and to minimize interference. Pesticides in soil are a necessity is agriculture for survival of crops and protection from unwanted growth and pests. LÄS MER