Sökning: "diffusion processes"

Visar resultat 16 - 20 av 150 uppsatser innehållade orden diffusion processes.

  1. 16. The Dividend Problem for Diffusion Processes

    Master-uppsats, Uppsala universitet/Sannolikhetsteori och kombinatorik

    Författare :Patrik Deigård; [2022]
    Nyckelord :Optimal dividend problem; Barrier strategy; Stochastic control; Itô diffusion.;

    Sammanfattning : .... LÄS MER

  3. 17. Inledande utvärdering av epoxibaserad livstidsförlängning av fjärrvärmerör : Relining av kolstål med en polyamidhärdande lösningsmedelsfri epoxi

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för kemi - Ångström

    Författare :Jennifer Andersson; [2022]
    Nyckelord :Relining; Epoxy; District heating; Corrosion; BPA; Glass-transition temperature; Relining; Rörinfodring; Fjärrvärmesystem; Livstidsförlängning; Korrosion; Rost; Epoxi; BPA; Tvärbundna polymerer; Sorption; Diffusion; Glasomvandlingstemperatur; Joniska transportvägar; Friktionsfaktor;

    Sammanfattning : Degradation of steel pipes in district heating systems is often a result of corrosion processes. To maintain the power in the systems the pipes gets replaced when they have been worn-out, resulting in high cost and long service time due to excavation. LÄS MER

  4. 18. Lithium-ion Battery Modeling and Simulation for Aging Analysis using PyBaMM

    Master-uppsats, Linköpings universitet/Institutionen för systemteknik

    Författare :Amina Coric; [2022]
    Nyckelord :Battery charging; Lithium-ion; Doyle-Fuller Newman; P2D; Single Particle Model; Pulse Charging; Constant Current Constant Voltage; Solid Electrolyte Interphase; SEI; Lithium Plating; Cycle Life; Cyclic Aging; PyBaMM; Batteri laddning; Litiumjonbatteri; Doyle-Fuller Newman; P2D; Singelpartikelmodell; Pulsad Laddning; Konstant Ström Konstant Spänning; Fast Elektrolytinterfas; SEI; Litiumplätering; LP; Cykellivslängd; Cykliskt Åldrande; PyBaMM;

    Sammanfattning : The rate of degradation of a lithium-ion battery depends on its use i.e. how it is charged and discharged. Physics-based models are used to represent the processes inside a cell as well as the degradation mechanisms. LÄS MER

  5. 19. Diffusion-Based MR Methods for Measuring Water Exchange

    Master-uppsats, Linköpings universitet/Institutionen för medicinsk teknik

    Författare :Shan Cai; [2022]
    Nyckelord :diffusion MRI; water exchange rate; membrane permeability; double diffusion encoding; DDE;

    Sammanfattning : Measuring transmembrane water exchange can provide potential biomarkers for tumors and brain disorders. Diffusion Magnetic Resonance Imaging (dMRI) is a well-established tool that can non-invasively measure water exchange across cell membranes. Diffusion Exchange Spectroscopy (DEXSY) is one of the dMRI-based frameworks used to estimate exchange. LÄS MER

  7. 20. Diffusion of floating offshore wind technology (FOWT) in Sweden

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för industriell ekonomi

    Författare :Jarno Hassinen; Robin Brink; [2022]
    Nyckelord :Renewable energy; diffusion; competitiveness; floating offshore wind technology; FOWT;

    Sammanfattning : Background: This research work takes a strong sustainability approach with the focus on renewable energy technology (RET) diffusion to meet the multifold and complex challenges with CO2 emission targets and geopolitical energy challenges. Global warming, sustainability issues and significant energy crises, suggests that RET is seen as one of the most important solutions to deal with these challenges. LÄS MER