Sökning: "system of ordinary differential equations"

Visar resultat 1 - 5 av 36 uppsatser innehållade orden system of ordinary differential equations.

  1. 1. Solving Ordinary Differential Equations and Systems using Neural Network Methods

    Kandidat-uppsats, Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013)

    Författare :Mimmi Westrin; [2023]
    Nyckelord :Neural network methods; trial solutions; numerical methods; Lotka-Volterra system; SEIR model;

    Sammanfattning : The applications of differential equations are many. However, many differential equations modelling real-world scenarios are very complex and it can be of great difficulty to find an exact solution if one even exists. Thus, it is of importance to be able to approximate solutions of differential equations. LÄS MER

  2. 2. Change in uptake and transfer of zinc in the food chain when predatory fish disappear from the system

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Sara Westerström; [2023]
    Nyckelord :Aquatic food web; Food chain structure; Trophic transfer; Decline of top predators; Stage-structured biomass model; Pollutants; Heavy metals; Zinc; Akvatisk födoväv; Födovävsstruktur; Trofisk överföring; Minskning av toppredatorer; Stegstrukturerad biomassamodell; Föroreningar; Tungmetaller; Zink;

    Sammanfattning : There is a widespread distribution of possibly toxic heavy metals, such as zinc, in aquatic ecosystems. Simultaneously aquatic food webs are changing due to declining predatory fish stocks. LÄS MER

  3. 3. Generating Perturbative Solutions for Slowly Rotating Perfect Fluids Using the Hartle Scheme

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Elin Johansson; [2023]
    Nyckelord :;

    Sammanfattning : In this thesis, we study slowly rotating relativistic stars by modeling them as perfect fluids. The Hartle formalism is used to perturb a spherically symmetric static solution into slow rotation and the corresponding field equations to second order are presented. LÄS MER

  4. 4. Mathematical modelling of microvascular oxygen transport and the impact of blood pressure

    Master-uppsats, Linköpings universitet/Institutionen för medicinsk teknik

    Författare :Siri Walmstedt; [2023]
    Nyckelord :Mathematical modelling; Microcirculation; Oxygen transport; Blood pressure; Hypertension; Systems biology;

    Sammanfattning : Cardiovascular diseases are the most common cause of death worldwide. There are known risk factorsfor cardiovascular diseases, such as high blood pressure, and it is also known that cardiovasculardiseases are associated with both the macrocirculation and the microcirculation. LÄS MER

  5. 5. The combination of SFDI with a mathematical model links perturbation in microcirculation to early stages of sepsis

    Master-uppsats, Linköpings universitet/Institutionen för medicinsk teknik

    Författare :Caroline Korsfeldt; Sara Karajica; [2022]
    Nyckelord :SFDI; SFDS; mathematical modeling; sepsis;

    Sammanfattning : The microcirculation system is crucial for the function of delivering biological markers such as oxygen and removing carbon dioxide from all the cells forming the complex ma- trix of tissue in the body. To keep up with the demands of each and every cell, there is a response from the microvasculature - resulting from for instance changes in blood flow to the tissue area. LÄS MER