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Visar resultat 1 - 5 av 27 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Model calibration methods for mechanical systems with local nonlinearities

    Författare :Yousheng Chen; Andreas Linderholt; Thomas Abrahamsson; Gaëtan Kerschen; Linnéuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; model calibration; finite element modelling; nonlinear structural dynamics; pre-test planning; multi-sinusoidal excitation; vibrational testing; cross validation; Maskinteknik; Mechanical Engineering;

    Sammanfattning : Most modern product development utilizes computational models. With increasing demands on reducing the product development lead-time, it becomes more important to improve the accuracy and efficiency of simulations. LÄS MER

  3. 2. On diagnostic procedures in pulmonary embolism

    Författare :Mårten Söderberg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :CTPA; D-dimer; deep venous thrombosis; pre-test probability score; pulmonary arteriography; pulmonary embolism; venous thromboembolism; von Willebrand factor antigen; Wells score.;

    Sammanfattning : Pulmonary embolism (PE) and deep venous thrombosis (DVT) are two entities of venous thromboembolism (VTE). PE is a common cause of mortality and morbidity. The symptoms and signs of PE are difficult to interpret, and the diagnosis is difficult to establish. LÄS MER

  4. 3. Undervisa mot våld. Attityder, läromedel, arbetssätt

    Författare :Tore Möller; Utbildningsvetenskap; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Pedagogy and didactics; violence; teacher aids; teacher training; comprehensive school; Attitude research; bullying; Pedagogik; didaktik; Psychology; Psykologi;

    Sammanfattning : The main aim of this study has been to influence the attitudes of students, Grades 4-6, in order that they will become opposed to the use of violence. The entire project was conducted during a full academic 20-credit term, as part of inter- mediate level teachers' training. The purpose of this learning experiment was threefold: 1. LÄS MER

  5. 4. Pre-testing and specification search in an autoregressive moving average process with extension to unit root cases

    Författare :Thimothy Oke; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Statistics; Statistik; Statistics; Statistik; Statistics; statistik;

    Sammanfattning : Several methods are applied in well defined contexts in the search for an appropriatestatistical model to fit a data set. Preliminary tests of significance for this end aretermed pre-testing. The aim of this study was to investigate some of the consequencesof such pre-testing in a few specific time series processes. LÄS MER

  7. 5. Psychoacoustics and hallucinating schizophrenics. A psychobiological approach to schizophrenia

    Författare :Olle M Olsson; Lund Psykiatri; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Psychiatry; psychiatry; perception; auditory grouping; psychoacoustics; Schizophrenia; auditory hallucinations; clinical psychology; psychosomatics; Psykiatri; klinisk psykologi; psykosomatik;

    Sammanfattning : Psychoacoustic experiments have been conducted for schizophrenic patients with auditory hallucinations in their case history and for reference subjects. The aim of the thesis has been to assess differences between the two groups of subjects. LÄS MER