Search for dissertations about: "Håkan Wettergren"

Found 2 swedish dissertations containing the words Håkan Wettergren.

  2. 1. Rotordynamic Analysis with Special Reference to Composite Rotors and Internal Damping

    Author : Håkan Wettergren; Jörgen W. Lund; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The present doctoral thesis is concerned with three different rotordynarnic applications; composite rotors, internal damping and microslip in a turbine generator. When a composite shaft has an imperfection, such as differences in the filament winding angle, the eigenfrequencies of the non-rotating shaft depend only on the material stiffness. READ MORE

  4. 2. Chlamydia pneumoniae in Children - Epidemiology and Clinical Implications

    Author : Erik Normann; Björn Wettergren; Håkan Gnarpe; Claes Sundelin; Birger Trollfors; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pediatrics; allergy; asthma; children; Chlamydia pneumoniae; immunohistochemistry; microimmunofluorescence; polymerase chain reaction; respiratory tract infection; Pediatrik; Paediatric medicine; Pediatrisk medicin;

    Abstract : Chlamydia pneumoniae is a human respiratory tract pathogen. Seroepidemiological studies indicate that C. pneumoniae infection is most common in school-aged children and infrequently detected in younger children.The aims of this study were to further elucidate the prevalence of C. READ MORE