Sökning: "Åström"

Visar resultat 1 - 5 av 118 avhandlingar innehållade ordet Åström.

  1. 1. Integrated and Subject-specific : An empirical exploration of Science education in Swedish compulsory school

    Författare :I. Maria Åström; Karl-Göran Karlsson; Lars Owe Dahlgren; Björn Andersson; Maria Åström; Linköpings universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Science education; international studies; PISA; curriculum integration; Education; Pedagogik; Subject didactics; Ämnesdidaktik; didactics of natural science; naturvetenskapens didaktik;

    Sammanfattning : This thesis is an explorative experimental study in two parts of different ways of organising Science education in the Swedish context. The first study deals with the question if students attain higher scores on test results if they have been working with integrated Science compared to subject-specific Science i.e. Biology, Chemistry and Physics. LÄS MER

  2. 2. A Variational Approach to Image Diffusion in Non-Linear Domains

    Författare :Freddie Åström; Michael Felsberg; Tony Lindeberg; Linköpings universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Image filtering methods are designed to enhance noisy images captured in situations that are problematic for the camera sensor. Such noisy images originate from unfavourable illumination conditions, camera motion, or the desire to use only a low dose of ionising radiation in medical imaging. LÄS MER

  3. 3. Grease in elastohydrodynamic lubrication

    Författare :Henrik Åström; Luleå tekniska universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Sammanfattning : The rheology of soap thickened greases has been investigated in a cone and plate rheometer and a model that includes base oil viscosity and temperature has been suggested and fitted to the results. With the use of a bouncing ball apparatus, the pressure coefficient of the limiting shear stress of the greases was determined. LÄS MER

  4. 4. Polyadenylation and deadenylation of messenger RNA in eukaryotic cells

    Författare :Jonas Åström; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 5. Invariancy Methods for Points, Curves and Surfaces in Computational Vision

    Författare :Karl Åström; Matematik LTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; curved surface; space curve; planar curve; laser guided vehicles; AGV; autonomous guided vehicles; recognition; reconstruction; image sequence; multiple view geometry; affine; invariant; projective; Mathematics; Matematik;

    Sammanfattning : Many issues in computational vision can be understood from the interplay between camera geometry and the structure of images and objects. Typically, the image structure is available and the goal is to reconstruct object structure and camera geometry. This is often difficult due to the complex interdependence between these three entities. LÄS MER