Search for dissertations about: "rounded"

Showing result 16 - 20 of 55 swedish dissertations containing the word rounded.

  2. 16. Waves and Trajectories in Quantum Dots

    Author : Tomas Lundberg; Joan Martorell; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis deals with electron transport in low-dimensional semiconductor nanostructures,and in particular, systems with quasi zero-dimensional properties, called quantum dots. These systems are so small that the electron wavelength is comparable to the size of systems, which means that the wave nature of the electrons is of fundamental importance. READ MORE

  4. 17. Electromagnetic simulation and design of etched diffraction grating demultiplexers

    Author : Jun Song; Sailing He; Dries Van Thourhout; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; etched diffraction grating; wavelength division multiplexing; passive devices; diffraction grating; planar waveguide devices; DWDM; optical communication.; Photonics; Fotonik;

    Abstract : Among various planar lightwave circuits for multiplexing/demultiplexing in an optical communication system, etched diffraction gratings (EDGs) have shown great potential due to their compactness and high spectral finesse. Conventional numerical methods for grating simulation cannot be used to simulate an EDG demultiplexer of large size (in terms of the wavelength). READ MORE

  5. 18. Posterior capsule opacification and postoperative endophthalmitis following cataract surgery : predictive and protective factors

    Author : Gisela Wejde; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Posterior capsule opacification; postoperative endophthalmitis; cataract surgery; capsulorhexis; intraocular lens; acrylic hydrophobic IOL; HSM PMMA IOL; silicone IOL; round edge; sharp edge; prophylaxis; cefuroxime;

    Abstract : Modem cataract surgery with implantation of an intraocular lens (IOL) is an increasingly safe and successful procedure, though complications still occur. This thesis addresses the most common complication, posterior capsule opacification (PCO) and the rare but serious complication postoperative endophthalmitis (POE). READ MORE

  6. 19. In the Air Gap of Linear Generators for Wave Power

    Author : Anna E. Frost; Mats Leijon; Sandra Eriksson; Irina Temiz; John Ringwood; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Linear generator; Wave Power; Poynting s theorem; Partial stator overlap; Permanent-magnet synchronous generator PMSG ; Linear electrical machines; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Abstract : Wave power conversion is one type of renewable electricity generation. Within wave power, there are many different concepts, whereof some utilizes linear generators for converting the energy in the ocean waves into electricity. READ MORE

  7. 20. Source and drain engineering in SiGe-based pMOS transistors

    Author : Christian Isheden; Mikael Östling; Simon Deleonibus; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; SiGe; source drain; shallow junctions; pMOS; process integration; CVD; epitaxy; etching; Ni silicide; contact resistivity; Elektronik; Electronics; Elektronik;

    Abstract : A new shallow junction formation process, based on selective silicon etching followed by selective growth of in situ B-doped SiGe, is presented. The approach is advantageous compared to conventional ion implantation followed by thermal activation, because perfectly abrupt, low resistivity junctions of arbitrary depth can be obtained. READ MORE