Sökning: "Keywords: Safety"

Visar resultat 11 - 15 av 39 avhandlingar innehållade orden Keywords: Safety.

  1. 11. Uncertainty and Sensitivity Analysis Applied to the Validation of BWR Bundle Thermal-Hydraulic Calculations

    Författare :Augusto Hernandéz Solís; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Latin Hypercube sampling; uncertainty and sensitivity analysis; Thermal‐hydraulic codes; simple random sampling; reactor safety analysis; BFBT benchmark;

    Sammanfattning : In recent years, more realistic safety analyses of nuclear reactors have been based on best estimate (BE) computercodes. The need to validate and refine BE codes that are used in the predictions of relevant reactor safetyparameters, led to the organization of international benchmarks based on high quality experimental data. LÄS MER

  3. 12. Analysis methodology for RBMK-1500 core safety and investigations on corium coolabiblty during a LWR sever accidnet

    Författare :Audrius Jasiulevicius; KTH; []
    Nyckelord :RBMK. Light water reactor. Core analysis; transient analysis; reactor dynamics;

    Sammanfattning : This thesis presents the work involving two broad aspectswithin the field of nuclear reactor analysis and safety. Theseare: - development of a fully independent reactor dynamics andsafety analysis methodology of the RBMK-1500 core transientaccidents and - experiments on the enhancement of coolabilityof a particulate bed or a melt pool due to heat removal throughthe control rod guide tubes. LÄS MER

  4. 13. Optimization of track geometry maintenance : a study of track geometry degradation to specify optimal inspection intervals

    Författare :Iman Arasteh khouy; Per-Olof Larsson-Kråik; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

    Sammanfattning : Railway infrastructure is a complex system which comprises different subsystems. Long useful life span is one of the important aspects of this prime mode of transport. The useful life length of its assets is highly dependent on the maintenance and renewal strategy used during its life cycle. LÄS MER

  5. 14. Probabilistic Risk Assessment of Energy Efficient Retrofitting Techniques - Focus on Multi-family Dwellings and the Effects of Changing Air Movements

    Författare :Simon Pallin; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Many of the residential buildings in Sweden have a large need of retrofitting; a result of insufficient maintenance and natural decay due to their predicted end of service life. These buildings must be taken into consideration in a near future where new and adapted technical solutions are required, suitable for the present conditions and the new demands of energy use. LÄS MER

  7. 15. Läsförmågan bland 9-10-åringar. Betydelsen av skolklimat, hem- och skolsamverkan, lärarkompetens och elevers hembakgrund

    Författare :Elisabeth Frank; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; läsförmåga; skol- och klassrumsklimat; lärarkompetens; hem- och skolsamverkan; flernivåanalys; strukturell ekvationsmodellering; PIRLS; årskurs 3; Pedagogics and Educational Sciences;

    Sammanfattning : Title: Reading skills among 9-10 year olds. The importance of school climate, collaboration between school and home, teacher competence and pupils’ home background Language: Swedish, with summary in English Keywords: PIRLS; reading achievement; school climate; safety; parental participation; collaboration; home and school partnership; teacher competence; two-level structural equation modeling ISBN: 978-91-7346-655-4 The main aim of the thesis is to acquire knowledge about conditions in the school and classroom context that are relevant to students’ reading skills. LÄS MER