Sökning: "Circle Diagram"

Hittade 4 avhandlingar innehållade orden Circle Diagram.

  1. 1. Synchronous Reluctance Machine (SynRM) in Variable Speed Drives (VSD) Applications

    Författare :Reza Rajabi Moghaddam; Chandur Sadarangani; Alfredo Vagati; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Synchronous Reluctance Machine SynRM ; Torque; Torque Ripple; Design; Optimization; FEM; Control; Standard Size; Measurement; Performance Comparison; Induction Machine IM ; Interior Permanent Magnet Machine IPM ; Variable Speed Drive VSD ; General Purpose GP ; Field Oriented Control FOC ; Direct Torque Control DTC ; Heat Run; Test; Thermal; Operation Diagram; Circle Diagram; Electrical engineering; Elektroteknik;

    Sammanfattning : This thesis is comprehensively dedicated to the theoretical and experimental reevaluation of the Synchronous Reluctance Machine (SynRM). A simple approach to derive the SynRM main characteristics and behavior is followed. An introduction to an evaluation of the different control strategies in is given. LÄS MER

  3. 2. Circumscribing Tonality: Upper Secondary Music Students Learning the Circle of Fifths : Att ringa in tonalitet: Gymnasieelever på estetiskt program lär sig kvintcirkeln

    Författare :Niklas Rudbäck; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; music theory pedagogy; circle of fifths; key; tonic; upper secondary school; scientific concepts; learning;

    Sammanfattning : The fundamental motivation for this research project is that listening is central to all musical activities, and that semiotic means for visualizing, representing, and conceptualizing music are central to educational endeavors aimed at developing trained listening. There is, however, a lack of research on how such semiotic means are taught and learned, especially in the aural skills and music theory subjects and in secondary education. LÄS MER

  4. 3. Värdering av stadsmiljöer

    Författare :Lena Steffner; Institutionen för arkitektur och byggd miljö; []
    Nyckelord :urban environments; evaluation; measure; method;

    Sammanfattning : ABSTRACT Doctoral thesis - Author: Lena Steffner Evaluation of urban environments, a method to measure experience The doctoral thesis builds on the licentiate thesis, Aesthetic evaluation of urban environments – a method using the public’s affective appraisals and experiences (2004). The central problem in the work is that experts and the public often differ in their evaluation of urban environments. LÄS MER

  5. 4. Slag, Steel, Ladle and Non-metallic Inclusions Equilibria in an ASEA-SKF Ladle Furnace

    Författare :Kamrooz Riyahimalayeri; Malin Selleby; Johan Björkvall; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Clean steel; Top slag; Non-Metallic Inclusions; Oxides; Vacuum Degassing; Deoxidation; Desulphurization; Equilibrium; Computational Thermodynamics; Scanning electron microscopy;

    Sammanfattning : This study explores the possibility of prediction and modification of some of the physicochemical properties of non-metallic inclusions by considering top slag-steel-ladle equilibria in an ASEA-SKF ladle furnace. To test the reliability of an available computational thermodynamic computer program, the first sub project was done. LÄS MER