Sökning: "Comsol MultiPhysics"

Visar resultat 21 - 25 av 33 avhandlingar innehållade orden Comsol MultiPhysics.

  1. 21. Computational Modeling of Reaction and Diffusion Processes in Mammalian Cell

    Författare :Qasim Ali Chaudhry; Michael Hanke; Bernt Wennberg; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : PAHs are the reactive toxic chemical compounds which are present as environmental pollutants. These reactive compounds not only diffuse through the membranes of the cell but also partition into the membranes. They react with the DNA of the cell giving rise to toxicity and may cause cancer. LÄS MER

  3. 22. Power electronics for resistance spot welding equipment

    Författare :Jawad Saleem; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Resistance spot welding is an inexpensive and efficient way ofjoining metals. It has extensive applications in household appliancesand in automotive industries. The traditional approach in relation tospot welding machines is to use 50 Hz welding transformers. Thedrawback associated with these transformers is that they are both heavyand bulky. LÄS MER

  4. 23. The Effect of HV Impulses on Partial Discharge Activity and on the Dielectric Response in Oil-impregnated Paper Insulation

    Författare :Respicius Clemence Kiiza; Hans Edin; Jörgen Blennow; KTH; []
    Nyckelord :Partial discharge; high voltage impulses; oil-impregnated paper; dielectric spectroscopy; Finite Element Method.;

    Sammanfattning : This work investigates how HV impulses affect the behavior of partial discharge (PD) activity and the low voltage dielectric response of oil-impregnated paper insulation. It also investigates how the change in the PD activity is related to the degradation level of oil-impregnated paper insulation. LÄS MER

  5. 24. Fast Microwave Tomography Algorithm for Breast Cancer Imaging

    Författare :Samar Hosseinzadegan; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; breast cancer; computational cost; inverse problem; discrete dipole approximation; microwave tomography; forward solver; Jacobian matrix;

    Sammanfattning : Microwave tomography has shown promise for breast cancer imaging. The microwaves are harmless to body tissues, which makes microwave tomography a safe adjuvant screening to mammography. LÄS MER

  7. 25. Upflow anaerobic sludge blanket reactor : modelling

    Författare :Raul Rodriguez; Luis Moreno; Olle Wahlberg; Gunno Renman; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; wastewater; anaerobic treatment; modelling; UASB reactor.; Chemistry; Kemi;

    Sammanfattning : Anaerobic treatment is widely used around the world as a biological stage in both domestic and industrial wastewater-treatment plants. The two principal advantages of anaerobic over aerobic treatment are the production of biogas, which can be used as fuel, and the lower rate of biomass production, which results in lower maintenance costs for the plant. LÄS MER