Sökning: "extrema"

Visar resultat 1 - 5 av 104 avhandlingar innehållade ordet extrema.

  1. 1. Liv genom tingen : Människor, föremål och extrema situationer

    Författare :Margrit Wettstein; Gösta Arvastson; Svante Lindqvist; Lotten Gustafsson Reinius; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Ethnology; Etnologi; Ethnology; etnologi;

    Sammanfattning : Material culture has several meanings and has played a significant role in ethnological research. Humans are surrounded by objects, many of which are so commonplace that they are barely noticeable. Others are charged with emotions and stories that account for something important. LÄS MER

  3. 2. Discrete Scale-Space Theory and the Scale-Space Primal Sketch

    Författare :Tony Lindeberg; Jan-Olof Eklundh; Jan. J Koenderink; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Computer vision; low-level processing; scale-space; diffusion; Gaussian filtering; discrete smoothing; primal sketch; segmentation; descriptive elements; scale detection; image structure; focus-of-attention; tuning low-level processing; blob detection; edge detection; edge focusing; histogram analysis; junction classification; perceptual grouping; texture analysis; critical points; classification of blob events; bifurcations; drift velocity; density of local extrema; multi-scale representation; digital signal processing; Computer Science; Datalogi;

    Sammanfattning : This thesis, within the subfield of computer science known as computer vision, deals with the use of scale-space analysis in early low-level processing of visual information. The main contributions comprise the following five subjects:The formulation of a scale-space theory for discrete signals. LÄS MER

  4. 3. Dissertatio academica, saguntinorum extrema, in extremis, expositura, quam, annuente ampl. facult. philosoph. in regio Upsaliensi lyceo, præside ... mag. Petro Ekerman ... publicæ censuræ modeste submittit stipendiarius regius Olaus Nic. Nordenström, Jemtlandus. Ad diem VII Julii anni MDCCLXIV. In auditorio Gustaviano, horis ante meridiem consvetis

    Författare :Petrus Ekerman; Olof Nic. Nordenström; Petrus Ekerman; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES;

    Sammanfattning : .... LÄS MER

  5. 4. Qualitative Aspects of Nonlinear Parabolic Partial Differential Equations and Systems

    Författare :Joakim Petersson; Matematik (naturvetenskapliga fakulteten); []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics; Optimal constants; Global existence; Parabolic equations; Quenching;

    Sammanfattning : This thesis contains four papers about some aspects of nonlinear parabolic equations and systems. Paper 1. A note on quenching for parabolic equations with dynamic boundary conditions We present a quenching result for semilinear parabolic equations with dynamic boundary conditions in bounded domains with a smooth boundary. Paper 2. LÄS MER

  7. 5. Characterizing Temporal Changes and Inter-Site Correlations in Daily and Sub-Daily Precipitation Extremes

    Författare :Agne Burauskaite-Harju; Anders Grimvall; Marian Scott; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Klimatförändringar; matematiska modeller; Statistics; Statistik;

    Sammanfattning : Information on weather extremes is essential for risk awareness in planning of infrastructure and agriculture, and it may also playa key role in our ability to adapt to recurrent or more or less unique extreme events. This thesis reports new statistical methodologies that can aid climate risk assessment under conditions of climate change. LÄS MER