Sökning: "dynamic modelling"

Visar resultat 21 - 25 av 357 uppsatser innehållade orden dynamic modelling.

  1. 21. Kritisk sedimenteringshastighet

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Max Mohlander; [2023]
    Nyckelord :Sedimentation; secondary settling tank; activated sludge; sludge blanket; sludge blanket leve; modelling; Takács; Bürger-Diehl; temperature; Sedimentering; mellansedimenteringsbassäng; aktivt slam; slamtäcke; slamnivå; modellering; Takács; Bürger-Diehl; temperatur;

    Sammanfattning : Mellansedimenteringsbassänger är inte sällan flaskhalsen för flödeskapaciteten vid reningsverk. För höga flöden kan leda till slamflykt, vilket påverkar efterkommande reningssteg negativt. Om en stor mängd slam från systemet försvinner kan detta även påverka det biologiska reningssteget negativt. LÄS MER

  3. 22. Petrography of impactites from the Dellen impact structure, Sweden

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Robert Mroczek; [2023]
    Nyckelord :Dellen; Impact; structure; magnetite; apatite; shock waves; shock-metamorphic; features; Impactite; petrography; scanning electron microscope; SEM; geology; Earth and Environmental Sciences;

    Sammanfattning : Identification and characterization of shock-metamorphic features in hypervelocity impact craters is important for our understanding of how shock waves interact with geologic materials and how impact craters form, which in turn is essential to our understanding of what role impact cratering played in the development of our solar system. Of particular interest are accessory minerals like apatite, which contains various volatiles that can affect the atmosphere of a body, or magnetite whose magnetic properties constitute a remote sensing indicator which allows us to study and understand the internal structures of distant bodies. LÄS MER

  4. 23. Modelling and Validation of Evaporation Systems; Mass & Energy Balances

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Maja Sondell; [2023]
    Nyckelord :Evaporation; Evaporation Systems; Modeling; Python; Chemical Engineering; Kemiteknik; Evaporation Rate; Overall Heat Transfer Coefficient; Technology and Engineering;

    Sammanfattning : To evaluate the performance of evaporation systems, performance parameters such as overall heat transfer coefficient and evaporation rate need to be evaluated. These parameters are difficult measure and therefore need to be calculated using other measured data. LÄS MER

  5. 24. Fractional Habitability comparison of slow rotating Earth-like bodies

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

    Författare :Gustaf Gothefors-Holm; [2023]
    Nyckelord :habitability; General circulation model; climate modelling;

    Sammanfattning : ROCKE-3D is a contemporary Global Circulation Model allowing research into the complex processes behind the climate of planets. Using ROCKE-3D one can construct a model coupling atmosphere, land, and ocean revealing how the climate of a planet evolves over time. LÄS MER

  7. 25. Dynamic Covariance Modelling Using Generalised Wishart Processes

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Fredrik Nilsson; [2023]
    Nyckelord :Covariance matrix; generalised Wishart process; Bayesian inference; Markov chain Monte Carlo; Hamiltonian Monte Carlo; Mathematics and Statistics;

    Sammanfattning : Modern portfolio theory was pioneered by Markowitz who formulated the mean-variance problem, without which any discussion on quantitative approaches to portfolio selection would be incomplete. The framework boils down to finding the expected return $\mu$ and covariance $\Sigma$, after which the solution is proportional to $\Sigma^{-1}\mu$. LÄS MER