Sökning: "Chalmers 2010"

Visar resultat 6 - 10 av 292 avhandlingar innehållade orden Chalmers 2010.

  1. 6. Spectrum Assignment Policy: Towards an Evaluation of Spectrum Commons in Thailand

    Författare :Nattawut Ard-Paru; Chalmers University of Technology; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; collective use of spectrum; spectrum management; benefit and cost analysis; spectrum assignment; spectrum commons;

    Sammanfattning : There is consensus among economists, engineers, and lawyers that a traditional command-and-control approach to spectrum assignment is inefficient and that a market-based or commons approach can be more efficient. The purpose of this thesis is to find the benefits of using spectrum commons for frequency assignment in Thailand. LÄS MER

  2. 7. Från järnvägsstation till kommunikationsnod

    Författare :Aram Bakerson; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; SAMHÄLLSVETENSKAP; ENGINEERING AND TECHNOLOGY; SOCIAL SCIENCES;

    Sammanfattning : AbstractIn organizational terms train stations were for a long period of time a component of railway transportation. Therefore during the crisis period for railways after the Second World War the stations did not often receive the attention and the resources they deserved. LÄS MER

  3. 8. Coded Modulation Techniques in Fiber-Optical Communications

    Författare :Lotfollah Beygi; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Today's high demand for increasing the data transmission rate motivates a great challenge to improve the spectral efficiency of fiber-optical channels. In order to achieve a higher spectral efficiency, exploiting an advanced coded modulation scheme is inevitable. LÄS MER

  4. 9. Initial Studies of Dynamic Responses of Female and Male Volunteers in Rear Impact Tests

    Författare :Anna K Carlsson; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; dynamic response; rear impact; response corridors; volunteers; crash test; neck injury; whiplash; females;

    Sammanfattning : Whiplash Associated Disorder (WAD) - commonly denoted whiplash injury - resulting from vehicle impacts, is a worldwide epidemic. These injuries occur at relatively low changes of velocity (typically between 10-25 km/h) and in impacts from all directions. Rear impacts are however the most common in the accident statistics. LÄS MER

  5. 10. Thin Films and Component Technologies for Low-Noise Terahertz Electronics

    Författare :Dimitar Milkov Dochev; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; THz electronics; SIS; tunnel junctions; Nb3Al; NbN; thin film; hot electron bolometer; microwave circuits; superconductor; epitaxial film;

    Sammanfattning : This thesis deals with several distinct subjects such as thin film deposition, design, fabrication and characterization of components for low-noise THz electronics.High energy-gap superconducting materials are of specific importance for low-noise THz mixer applications. LÄS MER