Search for dissertations about: "direct drive"

Showing result 1 - 5 of 87 swedish dissertations containing the words direct drive.

  1. 1. On Direct Drive Bone Conduction Devices - Hearing Rehabilitation and Objective Assessment of Stimulation Methods

    Author : Cristina Rigato; Chalmers University of Technology; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICAL AND HEALTH SCIENCES; Bone Conduction Implant; audiology; comparative study; Direct Drive; active transcutaneous; vibrations; Bone Conduction Devices;

    Abstract : Bone conduction devices (BCDs) rely on the transmission of sound in form of vibrations generated by a transducer to the inner ear via the skull and surrounding soft tissues. Direct drive BCDs stimulate the skull bone directly, either via a skin-penetrating abutment (BAHAs, Bone Anchored Hearing Aids), or with a transducer implanted under intact skin (active transcutaneous devices). READ MORE

  2. 2. Design of Direct-driven Permanent-magnet Generators for Wind Turbines

    Author : Anders Grauers; Chalmers University of Technology; []
    Keywords : optimization; direct drive; synchronous generator; wind turbine; design; low speed; permanent magnet; frequency converter;

    Abstract : This thesis presents an investigation of how a direct-driven wind turbine generator should be designed and how small and efficient such a generator will be. Advantages and disadvantages of various types of direct-driven wind turbine generators are discussed, and a radial-flux permanent-magnet generator connected to a forced-commutated rectifier is chosen for a detailed theoretical investigation. READ MORE

  3. 3. Permanent magnet generator for direct drive wind turbines

    Author : Andreas Solum; Uppsala universitet; []
    Keywords : ;

    Abstract : .... READ MORE

  4. 4. Electromagnetical Dynamics of a Direct Drive Wave Energy Converter

    Author : Mikael Eriksson; Uppsala universitet; []
    Keywords : ;

    Abstract : .... READ MORE

  5. 5. Simulation of Direct Drive Generator for Underwater Power Conversion

    Author : Erik Segergren; Uppsala universitet; []
    Keywords : ;

    Abstract : .... READ MORE