Sökning: "diffusion coefficient"

Visar resultat 1 - 5 av 45 uppsatser innehållade orden diffusion coefficient.

  1. 1. Image-driven simulation of brain tumors using a reaction-diffusion mathematical model

    Master-uppsats, Linköpings universitet/Avdelningen för medicinsk teknik

    Författare :Kristos Qiqi; [2023]
    Nyckelord :brain tumor; cancer; mathematical model; simulation; magnetic resonance images; hjärntumör; cancer; matematisk model; simulering; magnetresonanstomografi bilder;

    Sammanfattning : Brain tumors pose a big challenge in the field of neuro-oncology. Gliomas are the largest subgroup. Magnetic resonance imaging is a non-invasive tool for detecting and characterizing these tumors. Mathematical models, such as the reaction-diffusion equation, can be used for understanding the intricate behavior of gliomas. LÄS MER

  3. 2. Optimization of b-value Acquisition and Parameter Estimation of Intravoxel Incoherent Motion Measurements

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Ivan Rashid; [2023]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Radiotherapy is commonly used for cancer treatment, given to approximately half of all cancer patients in Sweden. Despite its widespread usage, there is currently no non-invasive and reliable imaging method that can identify regions of radiation resistance. LÄS MER

  4. 3. Investigation of the impact of different sugar compositions on the moisture absorption of hard candy when exposed to a humid environment

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Gila van den Eijnde; [2023]
    Nyckelord :Hard candy; Sugar composition; Hygroscopicity; Moisture absorption; Shelf life; Product stability; Food technology; Technology and Engineering;

    Sammanfattning : Hard candy is hygroscopic, implying that hard candy readily absorbs moisture from the environment, resulting in adverse changes in the texture and appearance of the candy. This thesis investigates the impact of different sugar compositions on the moisture absorption of hard candy when exposed to a humid environment. LÄS MER

  5. 4. Measurement and Evaluation of Scattering Coefficient for Diffusing Panel

    Master-uppsats, KTH/Teknisk akustik

    Författare :Frida Ekner; [2023]
    Nyckelord :Mechanics; acoustics; scattering; Mekanik; akustik; spridning;

    Sammanfattning : In this work the aim was to determine the scattering coefficient for a diffusing panel by measurements and also examine the difference between scattering and diffusion. Similar measurements have been carried out in the past in slightly different ways, the method that was chosen was to follow a given standard for the measurement of the scattering coefficient. LÄS MER

  7. 5. Finite Element Simulation of Moisture Transport in Cellulose Insulation Material of Power Transformers

    Master-uppsats, Uppsala universitet/Tillämpad mekanik

    Författare :Luc Villibord; [2023]
    Nyckelord :;

    Sammanfattning : Power Transformers are an important and complex part of the electrical transmission technology. One of the main producers of these transformers worldwide is Hitachi Energy, for which this work has been done. LÄS MER