Search for dissertations about: "M. Wells"

Showing result 1 - 5 of 33 swedish dissertations containing the words M. Wells.

  2. 1. Adaptive analysis of functional MRI data

    Author : Ola Friman; William M. Wells III; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : Functional Magnetic Resonance Imaging (fMRI) is a recently developed neuroimaging technique with capacity to map neural activity with high spatial precision. To locate active brain areas, the method utilizes local blood oxygenation changes which are reflected as small intensity changes in a special type of MR images. READ MORE

  4. 2. Microfluidic electrocapture technology in protein and peptide analysis

    Author : Juan Astorga-Wells; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : After sequencing the genomes of several organisms, science in the postgenomic era now aims at a thorough study of the proteins present in a given tissue or organism. Since this task requires an enormous analytical effort, integrated microfluidic systems are envisioned as the solution to automated high throughput analysis of biomolecules. READ MORE

  5. 3. Top-down Fabrication Technologies for High Quality III-V Nanostructures

    Author : Shagufta Naureen; Srinivasan Anand; Clivia M. Sotomayor Torres; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; III-V nanostructures; colloidal lithography; top-down fabrication; dry etching; quantum well; multilayer structures; nanowires; nanopillars; nanodisks; mono-layer etching; surface passivation; photoluminescence; carrier life time; total reflectivity; photonic crystals; nanomesh;

    Abstract : III-V nanostructures have attracted substantial research effort due to their interesting physical properties and their applications in new generation of ultrafast and high efficiency nanoscale electronic and photonic components. The advances in nanofabrication methods including growth/synthesis have opened up new possibilities of realizing one dimensional (1D) nanostructures as building blocks of future nanoscale devices. READ MORE

  6. 4. Breaking the symmetry : spin splitting of hole subbands in strained quantum wells

    Author : Oskar Mauritz; KTH; []
    Keywords : ;

    Abstract : Properties of the subband structure and related propertiesof quantum wells (QWs) are investigated, within the frameworkof the multi-band envelope function method. The subbands of aQW are replaced by discrete Landau levels when a magnetic fieldis applied perpendicular to the plane of the well. READ MORE

  7. 5. Epitaxy of GaAs-based long-wavelength vertical cavity lasers

    Author : Carl Asplund; KTH; []
    Keywords : gainnas; ingaas; quantum wells; movpe; mocvd; vertical cavity laser; bcsel; long-wavelength; epitaxy; xrd; dbr;

    Abstract : Vertical cavity lasers (VCLs) are of great interest aslow-cost, high-performance light sources for fiber-opticcommunication systems. They have a number of advantages overconventional edge-emitting lasers, including low powerconsumption, efficient fiber coupling and wafer scalemanufacturing/testing. READ MORE