Sökning: "teori"

Visar resultat 21 - 25 av 1013 avhandlingar innehållade ordet teori.

  1. 21. Concrete slab on the ground and moisture control : verification of some methods to improve the moisture conditions in the foundation

    Författare :Lars-Erik Harderup; Avdelningen för Byggnadsfysik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Concrete slab; moisture; repair methods; ventilated foundation; drainage; numerical methods; grunder; grundplattor; platta på mark; betongplattor; fuktskador; reparationsmetoder; dränering; ventilerade konstruktioner; fukt; fukttransport; relativ fuktighet; temperatur; luftflöden; beräkningsmodeller; teori; fältundersökningar; mätresultat;

    Sammanfattning : This work deals with different types of repair methods for concrete slab on the ground damaged by moisture. Many of the available methods involve some kind of mechanical ventilation of the foundation. The basic principle for all these systems is the same. LÄS MER

  3. 22. Behaviour of fracture process zones in concrete influenced by simultaneously applied normal and shear displacements

    Författare :Manouchehr Hassanzadeh; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; softening; mixed mode; fictitious crack model; concrete; deformationer; betong; brottmekanik; hållfasthet; brotthållfasthet; spänningar; skjuvspänningar; sprickor; beräkningsmodeller; brottenergi; teori; laboratorieförsök; interlock; crack path; diagonal crack; microcracking; instability; fracture energy; fracture mechanics; shear; tension; process zone;

    Sammanfattning : The thesis deals with the determination of the post peak behaviour of concrete in pure tension, and combined tension (compression) and shear. A test arrangement has been developed in order to determine the post peak behaviour of concrete expressed as stress - displacement curves. LÄS MER

  4. 23. Tillsyn i teori och praktik : om statlig styrning och kontroll av socialtjänstens individ- och familjeomsorg

    Författare :Eva Hämberg; Lars Oscarsson; Christian Kullberg; Thomas Sedelius; Anders Bruhn; Björn Blom; Örebro universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Inspection; control; social services; standards; evaluation; judgment; legitimacy; adaption; impact; Social Work; Socialt arbete; Hälsa och välfärd;

    Sammanfattning : The aim of this thesis is to deepen the understanding about the function of control in the inspection process and to increase the knowledge about the legitimacy and impact from inspection on different types of social and welfare services. In the thesis the form and legitimacy of the inspection process are studied in two types of social services in Sweden: a less complex service where the task to investigate and make decisions about social care dominates (IAD), and a more complex service where the task to provide treatment interventions dominates (TI). LÄS MER

  5. 24. Methods of measuring the moisture diffusivity at high moisture levels

    Författare :Mårten Janz; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fukttransport; materialegenskaper; permeabilitet; teori; beräkningsmetoder; mätmetoder; byggmaterial; forskningsresultat;

    Sammanfattning : The purpose of this licentiate study is to analyze capillarity transport in building materials, and in order to do that, develop a new measurement method by which the moisture diffusivity at high moisture levels can be measured in an easy way.... LÄS MER

  7. 25. Modelling of Transport Processes Involved in Service Life Prediction of Concrete : Important Principles

    Författare :Björn Johannesson; Göran Fagerlund; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; teori; beräkningsmodeller; finita element; beständighet; betong; livslängd; nedbrytning; sprickor; deformationer; hållfasthet; korrosion; klorider; fukt; simulering; luftporer; adsorption; beräkningsmetoder; desorption; Byggteknik; Civil engineering; teori; beräkningsmodeller; finita element; beständighet; betong; livslängd; nedbrytning; sprickor; deformationer; hållfasthet; korrosion; klorider; fukt; simulering; luftporer; adsorption; beräkningsmetoder; desorption;

    Sammanfattning : The main focus in this licentiate thesis is a description of the environmentally introduced action of diffusing and chemically reactive (e.g. carbonation and chemical-physical adsorption-desorption) matter in the pore solution and in the air-filled space in the pore system of the material. LÄS MER