Search for dissertations about: "distance protection statistics"

Found 4 swedish dissertations containing the words distance protection statistics.

  2. 1. Line protection and Power System Collapse

    Author : Mattias Jonsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; voltage stability; numerical relays; power swings; transient stability; power swing detector; out of step protection; back-up protection; distance protection; distance protection statistics; power oscillations; adaptive relaying;

    Abstract : .... READ MORE

  4. 2. Epidemiological Studies on Long Distance Cross-Country Skiers : Participants in the Vasaloppet 1955-2010

    Author : Ulf Hållmarker; Stefan James; Johan Ärnlöv; Dan Hellberg; Mats Börjesson; Uppsala universitet; []
    Keywords : Epidemiology; Cohort study; Physical activity; Lifestyle; Prevention; Sports medicine; Cancer; Cardiovascular disease; Mortality; Cardiac arrest; Atrial fibrillation; Myocardial infarction; Stroke; Cross-Country skiing; Vasaloppet; Sweden; Epidemiology; Epidemiologi;

    Abstract : The overall aim of this thesis was to study the influence of physical activity on health. Risks and benefits of physical activity is of particular interest since there is a global trend of less physical activity among youths and adults. READ MORE

  5. 3. Secure GNSS-based Positioning and Timing : Distance-Decreasing attacks, fault detection and exclusion, and attack detection with the help of opportunistic signals

    Author : Kewei Zhang; Panagiotis Papadimitratos; Erik G. Larsson; Christina Pöpper; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Abstract : With trillions of devices connected in large scale systems in a wired or wireless manner, positioning and synchronization become vital. Global Navigation Satellite System (GNSS) is the first choice to provide global coverage for positioning and synchronization services. READ MORE

  6. 4. Coded Modulation Techniques in Fiber-Optical Communications

    Author : Lotfollah Beygi; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : 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. READ MORE