Search for dissertations about: "Chalmers tekniska högskola."

Showing result 16 - 20 of 8687 swedish dissertations containing the words Chalmers tekniska högskola..

  2. 16. Control of permanent-magnet synchronous machines in automotive applications

    Author : Oskar Wallmark; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric drive; electric vehicle; fault tolerance; hybrid electric vehicle; inverter; in-wheel motor; loss minimization; permanent-magnet synchronous machine; phase-locked loop; position estimation; sensorless control; vector control;

    Abstract : This thesis deals with the design and analysis of control system structures for electric drives equipped with permanent-magnet synchronous machines (PMSMs) in automotive applications. Sensorless control, meaning vector control without a mechanical rotor position sensor, is considered and a speed and position estimator of phase-locked loop type is analyzed thoroughly. READ MORE

  4. 17. A Service Management Perspective on Healthcare Improvement: Integrating Social Context

    Author : Erik Eriksson; Chalmers tekniska högskola; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; healthcare; social constructionism; service management; quality management; improvement science;

    Abstract : The current dissertation argues that ideas from service research should be given a more prominent position in improving healthcare that is capable of managing current and future challenges. The integration and combination of intangible resources, such as knowledge and skills, constitute the service in this thesis; thus, service is conceived as a verb. READ MORE

  5. 18. Optical manipulation and spectroscopy of single functional globin-containing cells in microfluidic systems

    Author : Kerstin Ramser; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heme-proteins; optical manipulation; resonance Raman spectroscopy; microfluidic systems; single cells; Medical Engineering for Healthcare;

    Abstract : Recent advances in microbiology and biomedicine require development of tools to monitor the response of single cells to environmental stimuli under controlled physiological conditions. In this thesis, I describe how this can be achieved by combining various spectroscopic techniques with optical tweezers and microfluidic systems. READ MORE

  6. 19. Investigation on Propeller-Rudder Interaction by Numerical Methods

    Author : Da-Qing Li; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The axial forces in a propeller-rudder interactive system working in uniform flow are theoretically studied: In a steady linear method the propeller is represented by bound and free vortex systems, the rudder by vortex and source filaments and the rudder wake by free vortex filaments. A lifting-line analysis method predicts the propeller characteristics. READ MORE

  7. 20. 'Getting' it Together In Joint Directed Action

    Author : Christina Mauléon; Philippe Lorino; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; emotion; interpretational-relational; language discourse; Joint Directed Action; meaning making sensemaking; quality sciences; relational landscape; identity; action.;

    Abstract : This thesis is focused upon investigating how come activities in organizations are sometimes not aligned with an objective at hand, be it a project goal, safety, quality or other. When something goes wrong, where are the answers to be found? In the pursuit to examine these questions further, the aim of the thesis has been to investigate meaning making in action as this can increase an understanding of how actors may continuously align their actions, collective and/or individual, with a common goal – this process here being called Joint Directed Action (JDA). READ MORE