Search for dissertations about: "Linear generators"

Showing result 11 - 15 of 58 swedish dissertations containing the words Linear generators.

  2. 11. Buoy for linear wave energy converter

    Author : Halvar Gravråkmo; Uppsala universitet; []
    Keywords : ;

    Abstract : A wave energy converter (WEC) of point absorber type has been developed and tests have been conducted outside Lysekil. The project started in 2002 and linear permanent magnet generators together with a subsea substation and buoys of various geometric shapes have been built and tested. READ MORE

  4. 12. Contributions to Confidentiality and Integrity Algorithms for 5G

    Author : Jing Yang; Nätverk och säkerhet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stream ciphers; 5G; Confidentiality and integrity algorithms; SNOW-V; SNOW-Vi; Local pseudorandom generators; SNOW 3G; ZUC-256; Linear cryptanalysis; Guess-and-determine attacks;

    Abstract : The confidentiality and integrity algorithms in cellular networks protect the transmission of user and signaling data over the air between users and the network, e.g., the base stations. READ MORE

  5. 13. Dynamic threshold generators for robust fault detection

    Author : Michael Bask; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

    Abstract : Detection of faults, such as clogged valves, broken bearings or biased sensors, has been brought more and more into focus during the last few decades. There are two main reasons why faults are important to detect at an early stage. READ MORE

  6. 14. Numerical Modelling and Mechanical Studies on a Point Absorber Type Wave Energy Converter

    Author : Yue Hong; Rafael Waters; Mikael Eriksson; Cecilia Boström; Jørgen Hals Todalshaug; Uppsala universitet; []
    Keywords : linear generator; point absorber; numerical modelling; power production; optimal damping; Teknisk fysik; Engineering Science;

    Abstract : Oceans cover two thirds of the Earth’s surface and the energy potential of ocean waves as a renewable energy source is huge. It would therefore be a tremendous achievement if the vast mechanical energy in waves was converted into a form of energy that could be used successfully by society. READ MORE

  7. 15. Around minimal Hilbert series problems for graded algebras

    Author : Lisa Nicklasson; Samuel Lundqvist; Christian Gottlieb; Uwe Nagel; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Graded algebras; Hilbert series; Lefschetz properties; Exterior algebra; Linear resolution; Mathematics; matematik;

    Abstract : The Hilbert series of a graded algebra is an invariant that encodes the dimension of the algebra's graded compontents. It can be seen as a tool for measuring the size of a graded algebra. This gives rise to the idea of algebras with a "minimal Hilbert series", among the algebras within a certain family. READ MORE