Search for dissertations about: "reduced"

Showing result 21 - 25 of 8850 swedish dissertations containing the word reduced.

  2. 21. Core Points - Variable and Reduced Parameterization for Symbol Recognition

    Author : Jakob Sternby; Matematik LTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Recent research in the field of on-line handwriting recognition has been focused on statistical systems such as Hidden Markov Models, Neural Networks or a combination of these. There are however merits of employing an approach based on template matching. READ MORE

  4. 22. Reduced working hours and stress in the Swedish social services

    Author : Peter Barck-Holst; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Background: Since a financial crisis in the 1990’s employees in the Swedish public sector have suffered from work stress and related consequences such as long-term sick leave. Reduced working hours has long been debated in Sweden as a possible way of improving psychosocial health, and was therefore empirically evaluated in a large, quasi-experimental trial in four public sectors; care and welfare, call centers, technology, and the social services. READ MORE

  5. 23. Reduced order modeling in structural dynamics : Consideration of local nonlinearities

    Author : Linus Andersson; Byggnadsmekanik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : A structural design process may include various load cases for which a sufficient load-bearing capacity must be demonstrated. In addition to static load cases, a verification of dynamic loads, e.g. accidental loads such as blast and impact loading, may be required. READ MORE

  6. 24. Efficient Finite Element Approach for Structural-Acoustic Applications including 3D modelling of Sound Absorbing Porous Materials

    Author : Romain Rumpler; Peter Göransson; Jean-François Deü; Henry Rice; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Noise reduction; Poroelastic materials; Reduced model; Component mode synthesis; Padé approximants; Structural-acoustics; Finite element method; Fluid-structure interaction.; Matériaux poroélastiques; Modèles réduits; Sous-structuration dynamique; Approximants de Padé; Vibroacoustique interne; Eléments finis; Interaction fluid-structure.; Järnvägsgruppen - Ljud och vibrationer; Järnvägsgruppen - Ljud och vibrationer;

    Abstract : In the context of interior noise reduction, the present work aims at proposing Finite Element (FE) solution strategies for interior structural-acoustic applications including 3D modelling of homogeneous and isotropic poroelastic materials, under timeharmonic excitations, and in the low frequency range. A model based on the Biot-Allard theory is used for the poroelastic materials, which is known to be very costly in terms of computational resources. READ MORE

  7. 25. Theory of transformation optics and invisibility cloak design

    Author : Pu Zhang; Sailing He; Hao Yang; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transformation optics; Maxwell’s equations; invisibility cloak; half-space cloak; reduced cloak; inverse transformation; carpet cloak; Electrical engineering; Elektroteknik;

    Abstract : Research on metamaterials has been growing ever since the first experimental realization of double negative media. The theory of transformation optics provides people with a perfect tool to make use of vast possibilities of the constitutive parameters for metamaterials. READ MORE