Search for dissertations about: "expander"

Showing result 11 - 15 of 18 swedish dissertations containing the word expander.

  2. 11. Assessment of breast reconstruction with DIEP flaps

    Author : Stina Klasson; Kirurgi; []
    Keywords : Plastic surgery; breast reconstruction; DIEP flap;

    Abstract : Reconstruction with a Deep Inferior Epigastric Perforator (DIEP) flap is considered to be the first choice forautologous breast reconstruction. Skin and fat are transplanted from the lower abdomen to the chest were theblood vessels are reconnected through microsurgery. READ MORE

  4. 12. Calcium Aluminate based Cement as Dental Restorative Materials

    Author : Lars Kraft; Charles Lloyd; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Materialvetenskap; Materials science; Teknisk materialvetenskap; materialvetenskap; Materials Science;

    Abstract : This thesis presents the results from the development process of a ceramic dental filling material based on calcium aluminate cement. The main focus of the work concerns dimensional changes during setting, hardening and curing and the understanding of the factors controlling the dimensional stability of the system. READ MORE

  5. 13. Coil Design for a Mirror Based Fusion-Fission Reactor

    Author : Anders Hagnestål; Uppsala universitet; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : The SFLM Hybrid project aims to show that it is probable that a fusion-fission reactor can be constructed with a single-cell minimum B mirror machine as a neutron source. In this licentiate thesis, theoretical work has been done with the magnetic coil system of such a device and also with the overall concept. READ MORE

  6. 14. On Reduction of Nitrogen Oxides in Heavy-Duty Engines : with NOx Model Feedback, PPC and SNCR

    Author : Kenan Muric; Förbränningsmotorer; []
    Keywords : aftertreatment; emissions; Engine simulation; engine modeling; SNCR; PPC Engine;

    Abstract : European emission legislation has in recent years put a strict limit on NOx emissionsfrom heavy-duty truck engines. EGR and selective catalytic reduction are the two mostcommon technologies applied in a modern heavy-duty diesel engine to fulfill the legislation. READ MORE

  7. 15. Waste-Heat Recovery from Combustion Engines based on the Rankine Cycle

    Author : Gunnar Latz; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rankine cycle; waste heat recovery; energy losses; energy efficiency; vehicle propulsion;

    Abstract : The majority of the energy in the fuel burned by the combustion engines used in modern vehicles is lost in the form of waste heat and does not contribute to the propulsion of the vehicle. Three different technologies have been proposed for recovering some of this lost heat and thereby increasing the overall efficiency of combustion engines: the turbocompound, thermoelectric converters, and heat engines based on the Rankine cycle. READ MORE