Sökning: "breakdowns"

Visar resultat 1 - 5 av 37 avhandlingar innehållade ordet breakdowns.

  1. 1. Breakdowns, overlaps and ambivalence : an Actor-network theory study of the Swedish preschool curriculum

    Författare :Emilie Moberg; Hillevi Lenz Taguchi; Francis Lee; Cathy Burnett; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Curriculum; preschool; actor-network theory; texts; children; materiality; Early Childhood Education; förskoledidaktik;

    Sammanfattning : Within the discipline of early childhood education research, the present study will focus on the Swedish preschool curriculum text, using a sociomaterial approach offered by Actor-network theory (ANT). The study adopts ethnographic methods, foremost participant observations in a preschool, to generate knowledge of how the curriculum text comes to act through moments in the everyday preschool work. LÄS MER

  3. 2. Protection Strategies to Mitigate Major Power Systems Breakdowns

    Författare :Mattias Jonsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; system protection schemes; transient instability; distance protection; power swing detectors; voltage instability; generator coherency; wide area protection; out-of-step protection;

    Sammanfattning : This thesis deals with new methods to improve the performance of power system protection in the case of voltage- and transient instability. These methods are designed primarily to mitigate power system breakdown. Relay algorithms are proposed where conventional distance protection is combined with additional relay criteria. LÄS MER

  4. 3. Beam Momentum Changes due to Discharges in High-gradient Accelerator Structures

    Författare :Andrea Palaia; Volker Ziemann; Bernhard Holzer; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The key questions left unanswered by the Standard Model, and the recent discovery of a Standard Model-like Higgs boson, demand an extension of the research on particle physics to the TeV energy scale. The Compact Linear Collider, CLIC, is a candidate project to achieve such goal. LÄS MER

  5. 4. An Emotion-Focused Approach Towards Improving Clinicians' Work-Related User Experience

    Författare :Diane Golay; Åsa Cajander; Anne Persson; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Recent studies have associated clinician burnout with health information technology use. Researchers have attributed this negative impact of health information technology use on clinician well-being to poor system usability and insufficient clinician involvement in system design and implementation. LÄS MER

  7. 5. A study of contaminated lubricants concerning wear, rheological properties and sample withdrawal

    Författare :Sven Berg; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Sammanfattning : The wear of a machine, whether it is due to fatigue or abrasive wear, will add contaminants, in the form of particulates, to the system in question. Since a total breakdown of the machine can be rather costly, one wants to be able to foresee breakdowns and increase the machine life. LÄS MER