Sökning: "Primary stresses"

Visar resultat 1 - 5 av 43 uppsatser innehållade orden Primary stresses.

  1. 1. Investigation of MIDEL 7131’s Dielectric Breakdown Strength and Thermal Behaviour : Master Thesis, an experimental study using concentric-like electrodes at elevated temperatures to study breakdowns

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

    Författare :Kim Lin; [2023]
    Nyckelord :Dielectric strength; High voltage; Liquid dielectric; MIDEL 7131; Electrical breakdown; Temperature cycle; Dielektrisk styrka; Högspänning; Dielektriska vätskor; MIDEL 7131; Elektrisk nedbrytning; Temperaturcykling;

    Sammanfattning : Dielectric insulation are constantly exposed to various stresses, while also being expected to last for long periods of time. Naturally, they degrade with use and in demanding operational environments, this degradation phenomena can be accelerated, leading to costly consequences. LÄS MER

  3. 2. The influence of soil modeling on the prediction of vehicle dynamics and mobility – A comparison between the Finite Element Method and a Semi[1]Empirical Model

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Jimmy Kjellqvist; [2023]
    Nyckelord :;

    Sammanfattning : This master's thesis investigated the influence of soil modeling on vehicle dynamics and mobility predictions with a focus on two different soil models implemented in Project Chrono: the Bekker-Wong model, and a Finite Element (FE) model. The primary objective is to provide insights for decision-making regarding the most suitable soil model under specific circumstances. LÄS MER

  4. 3. Evaluating a new hydraulic implementation in LPJ-GUESS for three sites in north Europe

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Carl Holmquist; [2023]
    Nyckelord :Physical Geography and Ecosystem analysis; LPJ-GUESS; drought; sensitivity analysis; evapotranspiration; gross primary production; hydraulic parameters; boreal forest.; Earth and Environmental Sciences;

    Sammanfattning : Drought is projected to increase in frequency and intensity and impacts trees with increased water stress and increased mortality rate. Water stresses can cause hydraulic failure-related mortality or carbon starvation due to tree species having different strategies to deal with water stresses. LÄS MER

  5. 4. Forskning och nyttjande av mykorrhiza inom nordiskt jordbruk : en litteraturstudie

    Kandidat-uppsats, SLU/Dept. of Soil and Environment

    Författare :Tova Väätäinen; [2023]
    Nyckelord :inokulering; AM; Norden; vete; linser; potatis;

    Sammanfattning : Glomeromycota är en division svampar som bildar arbuskulär mykorrhiza (AM) med mer än 80% av alla landlevande växter. Via denna symbios får svampen kolhydrater från växten och i gengäld får växten näringsämnen. LÄS MER

  7. 5. Strain/Stress profile investigation of crystals mounted in an optical instrument via FEM simulation

    Master-uppsats, Lunds universitet/Industriell Produktion

    Författare :Matheus Amarante Machado; [2023]
    Nyckelord :Modeling; Abaqus; Y2SiO5; Finite Element Modeling; Strain; Stress; Yttrium Orthosilicate.; Technology and Engineering;

    Sammanfattning : Abstract This work is one of a series of related papers that were made in Lund University. They were done to analyze in a multi scalar way the Yttrium Orthosilicate crystals (YSO), analyzing the variation of material properties stemmed from the mounting, composition and other parameters in the optical properties of Yttrium Orthosilicate crystals. LÄS MER