Sökning: "Daniel Andersson"

Visar resultat 21 - 25 av 47 avhandlingar innehållade orden Daniel Andersson.

  1. 21. On the dynamics of footbridges : A theoretical approach and a comparison between running and walking loads

    Författare :Daniel Colmenares; Raid Karoumi; Andreas Andersson; Mahir Ülker Kaustell; Pedro Museros Romero; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; footbridges; dynamics; human induced loads; human structure interaction; harmonic load; continuous beam; gångbroar; dynamik; fotgängarlast; samverkan mellan fotgängare och bro; harmonisk last; kontinuerlig balk.; Structural Engineering and Bridges; Bro- och stålbyggnad;

    Sammanfattning : The dynamic behaviour of lightweight footbridges is often susceptible to HumanInduced Loads (HILs). Generally HILs are taken into account as moving harmonicfunctions in which the loading frequency represents the step frequency of the pedestrians. LÄS MER

  3. 22. Robust Image Registration for Improved Clinical Efficiency : Using Local Structure Analysis and Model-Based Processing

    Författare :Daniel Forsberg; Hans Knutsson; Mats Andersson; Claes Lundström; Wiro Niessen; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Image registration; deformable models; scoliosis; visualization; volume rendering; adaptive regularization; GPGPU; CUDA;

    Sammanfattning : Medical imaging plays an increasingly important role in modern healthcare. In medical imaging, it is often relevant to relate different images to each other, something which can prove challenging, since there rarely exists a pre-defined mapping between the pixels in different images. LÄS MER

  4. 23. Treatment of Acute Uncomplicated Colonic Diverticulitis

    Författare :Daniel Isacson; Abbas Chabok; Maziar NIkberg; Kennet Smedh; Fredrik Hjern; Wilhelm Graf; Caroline Nordenvall; Roland Andersson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Colonic diverticulitis; antibiotics; health-care cost; follow-up; Surgery; Kirurgi;

    Sammanfattning : The overall aim of this thesis was to evaluate the clinical management of AUD with regard to the no-antibiotic policy and its long-term effect, treatment on an outpatient basis and the potential health-care cost savingsStudy I:  a retrospective study at Västmanlands Hospital that evaluated and confirmed the adherence to the no-antibiotic policy in patients with AUD and its safety regarding complications and recurrences. A total of 246 patients with acute diverticulitis were identified, of which 195 had computed tomography (CT) confirmed AUD. LÄS MER

  5. 24. Importance of the Clr2 protein in heterochromatin formation in the fission yeast Schizosaccharomyces pombe

    Författare :Daniel Steinhauf; Leif Andersson; Uppsala universitet; []
    Nyckelord :Clr2; Yeast; Heterochromatin; Fission yeast; Schizosaccharomyces pombe; Biokemi; Biochemistry;

    Sammanfattning : Epigenetics is an area of biology that studies heritable changes in gene ex- pression without any change in the DNA sequence. The most studied epige- netic mechanisms are DNA methylation, RNA interference and histone mod- ifications. LÄS MER

  7. 25. A Sequence of Essays on Sequences of Auctions

    Författare :Daniel Bougt; Ola Andersson; Per Hjertstrand; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; declining price anomaly; sequential auctions; train-ticket auctions; ambiguity aversion; risk aversion; non-parametric estimation; experiment; Economics; Nationalekonomi;

    Sammanfattning : Essay I (with Gagan Ghosh and Heng Liu). The existence of declining prices in sequential auctions is a well-documented empirical pattern. Three explanations that can explain the puzzle are bidders being risk averse, loss averse, or ambiguity averse. LÄS MER