Sökning: "fractal analysis"

Visar resultat 1 - 5 av 49 avhandlingar innehållade orden fractal analysis.

  1. 1. Water erosion modeling using fractal rainfall disaggregation- a study in semiarid Tunisia

    Författare :Sihem Jebari; Avdelningen för Teknisk vattenresurslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reservoir siltation; regionalization; fractal analysis; Atlasic mountain range; erosive events; semiarid area; soil loss; Tunisia.; Soil erosion; semiarid; Tunisia; rainfall; fractal; diaggregation;

    Sammanfattning : In the Tunisian semiarid area, water erosion processes have led to negative economic and environmental consequences in a context of limited water resources. To characterize and predict these degradation phenomena, a comprehensive high-resolution data base on erosive rainfall, together with siltation records for 28 small reservoirs were analyzed. LÄS MER

  3. 2. 3-D Characterization and Degradation Analysis of Rock aggregates

    Författare :Pasi Tolppanen; KTH; []
    Nyckelord :3-dimension; 3-D; laser scanning; aggregate; ballast; characterization; size; shape; volume; roughness; Fast Fourier analysis; fractal; degradation;

    Sammanfattning : .... LÄS MER

  4. 3. Electrical Properties of Carbon Black Polymer Composites: Filler Particle Rearrangement

    Författare :Karl Michael Jäger; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; conductivity; fractal; permittivity; carbon black; dielectric; electron tunnelling; polymer; image analysis; cluster; percolation;

    Sammanfattning : The practical application of semi-conducting carbon black polymer composites often involves temperature variations resulting in changes in their electrical properties. Study of cross-linked ethylene butylacrylate copolymer (EBA) filled with acetylene black has shown that these changes are due to carbon black network re-arrangement. LÄS MER

  5. 4. Functional modelling of the human timing mechanism

    Författare :Guy Madison; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; Brain mechanisms; Brownian motion; drift; dynamical systems; fractal; human; Gaussian noise; Hurst exponent; time; time series analysis; timing; Psykologi; Psychology; Psykologi; fysiologi; Physiology;

    Sammanfattning : Behaviour occurs in time, and precise timing in the range of seconds and fractions of seconds is for most living organisms necessary for successful interaction with the environment. Our ability to time discrete actions and to predict events on the basis of prior events indicates the existence of an internal timing mechanism. LÄS MER

  7. 5. Multiwavelet analysis on fractals

    Författare :Andreas Brodin; Alf Jonsson; Per-Anders Ivert; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Wavelets; Fractals; Pointwise convergence; Besov spaces; Regularization; MATHEMATICS; MATEMATIK;

    Sammanfattning : This thesis consists of an introduction and a summary, followed by two papers, both of them on the topic of function spaces on fractals. Paper I: Andreas Brodin, Pointwise Convergence of Haar type Wavelets on Self-Similar Sets, Manuscript. LÄS MER