Search for dissertations about: "dimensional changes"

Showing result 1 - 5 of 395 swedish dissertations containing the words dimensional changes.

  1. 1. Dimensional Stability of Paper : Influence of Fibre-Fibre Joints and Fibre Wall Oxidation

    Author : Per A. Larsson; Lars Wågberg; Mikael Lindström; Lars Berglund; KTH; []

    Abstract : Papper är ett mycket mångsidigt material. Trots detta finns det ett flertal egenskaper som begränsar papperets användbarhet. Ett av de större problemen med cellulosa- och lignocellulosafibrer är att de sänker sin fria energi genom att sorbera vatten, och denna sorption förändrar papperets dimensioner. READ MORE

  2. 2. Three-Dimensional Load-Deformation Relationships of Arbitrarily Loaded Coiled Springs

    Author : Lars Lindkvist; Chalmers University of Technology; []
    Keywords : extended stiffness model; helical spring; non-linear deformation; stiffness matrix; coiled spring; arbitrary load; large deformation; three-dimensional;

    Abstract : This paper reports the development of a computer based tool that can be used to predict the three-dimensional load-deformation relationships of arbitrarily loaded coiled springs. The non-linear deformation of the spring is calculated by dividing the spring into small elements for which the load-deformation relationships can be considered to be linear. READ MORE

  3. 3. On tooth movements and associated tissue alterations related to edentulous areas and bone defects

    Author : Birgitta Lindskog Stokland; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Orthodontics; periodontics; interdisciplinary treatment; infrabony pockets; edentulous areas; dimensional changes; elongation; continuous eruption; tipping;

    Abstract : The aim of the thesis was to study orthodontic tooth movement in relation to edentulous areas and infrabony pockets as well as the physiological movement of teeth facing an edentulous area. A dog model was used in Studies I and II. READ MORE

  4. 4. Pro-welfare politics : A model for changes in European welfare states

    Author : Sang-Hoon Ahn; Uppsala universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Sociology; Welfare state; Rights; Duties; Alliance; Social policy; Social insurance; Politics; Cleavages; Class; Welfare status; Multi-dimensional approach; Pooled time series analysis; LISREL; Sociologi; Sociology; Sociologi; Sociology; sociologi;

    Abstract : This dissertation explores the changing conditions of European welfare states and the underlying driving forces behind these changes. It is broadly based on the recently emphasized notions of dynamic structuring and internal structure of welfare programs, taking into account the new environment of the welfare state. READ MORE

  5. 5. Three-dimensional ultrasound studies of normal and abnormal ovaries

    Author : Ligita Jokubkiene; gynekologisk och prenatal ultraljudsdiagnostik Obstetrisk; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ovary; ovarian follicle; ovarian neoplasms; ultrasonography; three-dimensional imaging; Doppler ultrasound imaging; vascular morphology;

    Abstract : The aims of this work were: 1) to estimate the number of follicles, ovarian volume and power Doppler vascular indices and their changes with age using three-dimensional (3D) transvaginal grey-scale and power Doppler ultrasound in asymptomatic women of fertile age either with natural menstrual cycles or using combined oral contraceptives, and 2) to determine whether tumour vascularity, assessed by 3D power Doppler ultrasound, can help discriminate between benign and malignant ovarian tumours. A group of 303 gynaecologically asymptomatic women, aged 20–39 years with normal menstrual cycles (NMC) and another group of 213 women aged 20–39 years using combined oral contraceptives (COC) were examined using two-dimensional (2D) and 3D transvaginal ultrasound once between cycle day 4 and 8. READ MORE