Sökning: "Comsol MultiPhysics"

Visar resultat 6 - 10 av 33 avhandlingar innehållade orden Comsol MultiPhysics.

  1. 6. Novel diagnostic microarray assay formats towards comprehensive on-site analysis

    Författare :Jesper Gantelius; Helene Andersson-Svahn; Christer Wingren; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; magnetic microbeads; gold nanobeads; microarrays; lateral flow; on-site diagnosis; SNPs; pestivirus; autoimmunity; contagious bovine pleuropneumonia; comsol multiphysics; finite element method; Microbiology; Mikrobiologi; Biochemistry; Biokemi;

    Sammanfattning : Advances in molecular methods for analyzing DNA, RNA and proteins in humans as well as in other animals, plants, fungi, bacteria or viruses have greatly increased the resolution with which we can study life’s complexity and dynamics on earth. While genomic, transcriptomic and proteomic laboratory tools for molecular diagnosis of disease are rapidly becoming more comprehensive, the access to such advanced yet often expensive and centralized procedures is limited. LÄS MER

  3. 7. Simulations of directionality effects and optical forces in plasmonic nanostructures

    Författare :Vladimir Miljkovic; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Comsol multiphysics; optical forces; nanoparticles; nanowires; DDA; surface plasmons; Green’s function; Mie theory;

    Sammanfattning : With the rapid development of nanoscience and nanotechnology, surface plasmonics based on metal nanoparticles and nanostructures gain increasing interest, not only for fundamental scientific studies, but also for optical and sensor applications. At the nanoscale, the physical and chemical properties of metal particles, especially their optical properties, strongly depend on size and shape, as well as on the surrounding media and structures. LÄS MER

  4. 8. Demagnetization Studies on Permanent Magnets : Comparing FEM Simulations with Experiments

    Författare :Stefan Sjökvist; Sandra Eriksson; Hans Bernhoff; Mårten Grabbe; Uppsala universitet; []
    Nyckelord :Permanent magnet; demagnetization; simulation; FEM; Comsol Multiphysics; VAWT; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : In a world where money often is the main controlling factor, everything that can be tends to be more and more optimized. Regarding electrical machines, developers have always had the goal to make them better. LÄS MER

  5. 9. Novel methods for improving rapid paper-based protein assays with gold nanoparticle detection

    Författare :Lara Lama; Helene Andersson Svahn; Jesper Gantelius; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gold nanoparticles; ultrasound energy; signal enhancement; diagnostics; microarrays; paper-based assays; COMSOL Multiphysics simulations; Bioteknologi; Biotechnology;

    Sammanfattning : This thesis describes methods for improving sensitivity in rapid singleplex and multiplex microarray assays. The assays utilize the optical characteristics of colloidal gold nanoparticles for the colorimetric detection of proteins.Multiplexed detection in sandwich immunoassays is limited by cross-reactivity between different detection antibodies. LÄS MER

  7. 10. Wave propagation in graded material composites with extraordinary properties

    Författare :Brage B. Svendsen; Mariana Dalarsson; Martin Norgren; Astrid Aksnes; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; gradient-index; waveguides; gold nanoparticles; cancer treatment; left-handed media; negative index materials; metamaterials; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : I denna avhandling studeras elektromagnetisk vågutbredning i graderade materialkompositer med extraordinära egenskaper. Två sådana materialkompositsystem studeras särskilt, med hjälp av både analytiska och beräkningstekniska elektromagnetiska metoder. LÄS MER