Search for dissertations about: "circuit and analysis based on thesis in sweden"

Showing result 1 - 5 of 8 swedish dissertations containing the words circuit and analysis based on thesis in sweden.

  2. 1. Influence of variations in feed ore characteristics on autogenous grinding

    Author : Roger Hahne; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mineralteknik; Mineral Processing;

    Abstract : In autogenous mills, the grinding media derives from the feed ore itself. Variations in feed ore properties will therefore affect the grinding charge and thus, the resulting ground product will vary. READ MORE

  4. 2. Angels in Unstable Sociomaterial Relations : Stories of Information Technology

    Author : Pirjo Elovaara; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Information Technology IT ; Actor-Network Theory ANT ; Actor-Network Theory and After ANTa ; Feminist technology; Technoscience studies;

    Abstract : I have explored spaces, where negotiations of border transgressions take place and where issues of technology and politics mingle. We meet a diversity of actors in the world of information technology (IT): political texts, people and technology participating in numerous sociomaterial relations. READ MORE

  5. 3. Design and characterisation of terahertz Schottky diode harmonic mixers

    Author : Divya Jayasankar; RISE Research Institutes of Sweden; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Schottky diodes; Phase locking; Harmonic mixers; Heterodyne receivers; Terahertz electronics; Frequency stabilisation; Frequency converters;

    Abstract : Efficient, compact, and reliable terahertz frequency converters preferably operating at ambient temperature are crucial for stabilising far-infrared optical sources. This thesis focuses on the design and characterisation of terahertz Schottky diode harmonic mixers for frequency stabilisation of quantum-cascade lasers. READ MORE

  6. 4. Wind Turbine Characterization by Voltage Source Converter Based Test Equipment

    Author : Nicolas Espinoza; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Grid Integration; Frequency Scan; Discrete Control; Wind Power; Grid Emulation; Voltage Source Converter VSC ; Grid Code; Low Voltage Ride Through LVRT ;

    Abstract : In countries where wind power has become a relevant part of the total generated electrical power, transmission system operators (TSOs) have included in their Grid Codes specific technical requirements for interconnection of wind power plants. Some Grid Codes demand specific testing procedures in order to verify the fulfilment for their requirements. READ MORE

  7. 5. Mineralogical, chemical and textural properties of the Malmberget iron deposit : a process mineralogically characterisation

    Author : Cecilia Lund; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Malmgeologi; Ore Geology;

    Abstract : This thesis combine two different but closely connected disciplines in a mining process to each other, ore geology and process mineralogy by studying mineralogical-textural features of the ore and the ore concentrate in an apatite iron ore deposit in Malmberget, Sweden. Apatite iron ore deposits (Kiruna type) exist in a few places around the world and the two most important deposits are mined by LKAB at Kiruna and Malmberget. READ MORE