Search for dissertations about: "PETERson"

Showing result 1 - 5 of 70 swedish dissertations containing the word PETERson.

  1. 1. Regime Shifts in the Anthropocene

    Author : Juan Carlos Rocha; Garry Peterson; Debra Peters; Garry D. Peterson; Reinette Biggs; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURVETENSKAP; regime shifts; critical transitions; ecosystems; drivers; impacts; ecosystem services; vetenskap om hållbar utveckling; Sustainability Science;

    Abstract : Abrupt and persistent reconfiguration of ecosystem’s structure and function has been observed on a wide variety of ecosystems worldwide. While scientist believe that such phenomena could become more common and severe in the near future, little is known about the patterns of regime shifts’ causes and consequences for human well-being. READ MORE

  2. 2. SPECT Imaging using Pinhole Collimation : System Design and Simulation Studies for Pre-Clinical and Clinical Imaging

    Author : Mikael Peterson; Lund Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pinhole SPECT tomography; Nuclear medicine imaging; Monte Carlo-based image reconstruction;

    Abstract : The focus of this dissertation is the use of pinhole collimation in Nuclear Medicine. A pinhole is a single aperture in an opaque material that is placed between the detector and source of interest, and photons must pass through the hole to reach the detector. The choices of pinhole parameters, e.g. READ MORE

  3. 3. Learning and understanding for quality improvement under different conditions : An analysis of quality registry-based collaboratives in acute and chronic care

    Author : Anette Peterson; Boel Andersson Gäre; Johan Thor; Berith Hedberg; Soffia Gudbjörnsdottir; Helle Wijk; Högskolan i Jönköping; []

    Abstract : The demands that are placed on healthcare systems continue to increase, but several studies show that patient care and healthcare system outcomes are not as good as they could be. To come to terms with these problems, many stakeholders turn to systematic quality improvement methods. READ MORE

  4. 4. Induction Machine Speed Estimation - Observations on Observers

    Author : Bo Peterson; Industriell elektroteknik och automation; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; control engineering; robotics; Automation; Elektronik och elektroteknik; Electronics and Electrical technology; estimation; sensorless control; observer; induction machine; Automatiska system; robotteknik; reglerteknik;

    Abstract : This work focuses on observers estimating flux linkage and speed for induction machines, mainly in the low speed region. With speed estimation, sensorless control is possible, meaning that the speed of induction machines without mechanical speed sensors can be controlled. READ MORE

  5. 5. Inlärd hjälplöshet i arbetslivet : analys av egenkontroll, attribution och lärande utifrån två komplementära arbetslivsforskningsstrategier

    Author : Bo Peterson; Uppsala universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psykologi; Tillämpad; Arbetspsykologi; Arbete; Arbetsmarknad; Sverige; Education; Pedagogik;

    Abstract : .... READ MORE