Sökning: "Thomas Abrahamsson"

Visar resultat 1 - 5 av 16 avhandlingar innehållade orden Thomas Abrahamsson.

  1. 1. Can Lactobacillus Reuteri Prevent Allergic Disease in Early Childhood?

    Författare :Thomas Abrahamsson; Maria Jenmalm; Bengt Björkstén; John Bienenstock; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Background: An altered microbial exposure may be partly responsible for the increase of allergic diseases in populations with a western lifestyle. Activation of the immune system by microbes early in life is probably required for an accurate maturation of the immune system. LÄS MER

  3. 2. Modal analysis and synthesis in transient vibration and structural optimization problems

    Författare :Thomas Abrahamsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Complex modal analysis; transient analysis; nonproportional damping; adjoint eigenproblems; follower forces; structural optimization; nonconservative systems; sensitivity analysis; linear continous structural systems; moving loads;

    Sammanfattning : .... LÄS MER

  4. 3. Problemlösningsarbete på låg organisatorisk nivå : Två studier om implementering respektive konkretisering av idéer om kundorderstyrd tillverkning

    Författare :Gun Abrahamsson; Sven Helin; Nils Kinch; Ingemund Hägg; Thomas Sandberg; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Business studies; Företagsekonomi; Industriell organisation; Institutionell teori; Organisatoriskt lärande; Regelstyrd handling; Ekonomistyrning; Lateralt samarbete; Fallstudier; World Class Manufacturing; Ständig förbättring; Business studies; Företagsekonomi; Business Studies;

    Sammanfattning : The two studies reported in this thesis are about problem solving at a low organisational level in an organisational unit in a Swedish manufacturing company, which has adopted ideas of World Class Manufacturing. In the first study, we analyse, from an organisational learning perspective, the implementation of the well-known concept Continuous Improvement at shop-floor level and how management accounting may facilitate or impede improvement work. LÄS MER

  5. 4. Vibration-based Assessment of Tensegrity Structures

    Författare :Nasseradeen Ashwear; Eriksson Anders; Thomas Abrahamsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tensegrity; Pre-stress; Vibration; Health monitoring; Buckling; Temperature effect; Vibration health monitoring VHM; Optimization; Engineering Mechanics; Teknisk mekanik;

    Sammanfattning : Vibration structural health monitoring (VHM) uses the vibration properties to evaluate many civil structures during the design steps, building steps and service life.The whole function, expressed by stiffness and frequencies of tensegrity structures are primarily related to the level of pre-stress. LÄS MER

  7. 5. 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