Sökning: "Håkan Johansson"

Visar resultat 6 - 10 av 76 avhandlingar innehållade orden Håkan Johansson.

  1. 6. I det sociala medborgarskapets skugga : Rätten till socialbidrag under 1980- och 1990-talen

    Författare :Håkan Johansson; Socialhögskolan; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; theory of social work; Social changes; social policy; social assistance; selectivism; universalism; social citizenship; social rights; Social problems and welfare; national insurance; Sociala förändringar; teorier om socialt arbete; Sociala problem; social välfärd; socialförsäkring;

    Sammanfattning : Universalism, social rights and social citizenship are often considered as key concepts to describe the Swedish welfare state. However, in the beginning of the 1990s, the Swedish welfare state experienced a severe economic recession. LÄS MER

  3. 7. Studies on microstructure related toughness problems in steel by the application of linear elastic fracture mechanics

    Författare :Håkan Johansson; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  4. 8. Calibration of constitutive models with error control

    Författare :Håkan Johansson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In this thesis a framework for the calibration ofconstitutive models is presented. The framework involves theformulation of an optimization problem which is solved usingstrategies based on, essentially, Newton's method. LÄS MER

  5. 9. On Distribution Coefficients in Aquatic Systems

    Författare :Håkan Johansson; Bert Allard; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Distribution coefficient; lake; modelling; morphometry; stream; Geovetenskap; Earth sciences; Geovetenskap; Geovetenskap med inriktning mot miljöanalys; Earth Science with specialization in Environmental Analysis;

    Sammanfattning : In this thesis, different types of chemical and physical distribution coefficients are identified, examined and used to describe the fate and transport pathways of substances in aquatic systems.Observations from field experiments in streams with non-reactive and reactive tracers constituted the basis for development of an advection-dispersion model. LÄS MER

  7. 10. Parameter identification in constitutive models with a posteriori error control and sensitivity assessment

    Författare :Håkan Johansson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sensitivity analysis; Goal-oriented error estimate; Calibration; Parameter identification;

    Sammanfattning : In this thesis a framework for the calibration of constitutive models is presented. The framework involves theformulation of an optimization problem which is solved usingstrategies based on, essentially, Newton's method. LÄS MER