Search for dissertations about: "Staffan Lundberg"

Found 5 swedish dissertations containing the words Staffan Lundberg.

  1. 1. Experimental investigations in wood machining related to cutting forces, sawdust gluing, and surface roughness

    Author : Staffan Lundberg; Luleå tekniska universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; Matematik; Mathematics; Wood Technology; Träteknik;

    Abstract : .... READ MORE

  2. 2. On adjoint symmetries and reciprocal Bäcklund transformations of evolution equations

    Author : Staffan Lundberg; Luleå tekniska universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics;

    Abstract : The aim of this Licentiate Thesis is to discuss special transformations and so-called adjoint symmetries of nonlinear partial differential equations. Nonlinear partial differential equations play an important role in the description of many physical phenomena. READ MORE

  3. 3. Studies of some Operators of Harmonic Analysis in certain Function Spaces with Applications to PDEs

    Author : Staffan Lundberg; Norway Narvik UiT The Arctic University of Norway Department of Computer Science and Computational Engineering Faculty of Science and Technology; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Operators; Hardy Operators; Potential Operators; Singular Operators; Function Spaces; Morrey Spaces; H¨older Spaces; Partial Differential Equations; Inequalities; Hardy Type Inequalities; Weights; Applications; Matematik; Mathematics;

    Abstract : The study in this PhD thesis aims at development of certain mathematical methods used in applications, in particular, in the study of regularity properties of solutions in various mathematical models described by Partial Differential Equations (PDEs). To this end, we study various operators of harmonic analysis in certain function spaces, since solutions to many PDEs may be expressed in terms of such operators. READ MORE

  4. 4. Rolandic Epilepsy : A Neuroradiological, Neuropsychological and Oromotor Study

    Author : Staffan Lundberg; Orvar Eeg-Olofsson; Raili Raininko; Ulrich Stephani; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pediatrics; rolandic epilepsy; children; idiopathic focal epilepsy; magnetic resonance imaging; proton magnetic resonance spectroscopy; cognition; neuropsychology; oromotor performance; dichotic listening; hippocampus; classification; Pediatrik; Paediatric medicine; Pediatrisk medicin;

    Abstract : Rolandic epilepsy (RE) is the most common focal epilepsy syndrome in the pediatric age group with an onset between 3 and 13 years. The syndrome is defined by electro-clinically typical features and has been considered benign according to seizure remission before the age of 16 years. READ MORE

  5. 5. Non-Invasive Assessment of Liver Fibrosis with 31P-Magnetic Resonance Spectroscopy and Dynamic Contrast Enhanced Magnetic Resonance Imaging

    Author : Bengt Norén; Staffan Wirell; Peter Lundberg; Peter Leander; Linköpings universitet; []
    Keywords : ;

    Abstract : The present study aims at demonstrating phosphorus metabolite concentration changes and alterations in uptake/excretion of a hepatocyte specific contrast agent in patients with diffuse - or suspected diffuse - liver disease by applying two non-invasive quantitative MR techniques and to compare the results with histo-pathological findings, with focus on liver fibrosis.In the first study phosphorus-31 MR spectroscopy using slice selection (DRESS) was implemented. READ MORE