Sökning: "multiresolution analysis"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden multiresolution analysis.

  1. 1. Wavelet theory and some of its applications

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Elin Johansson; [2005]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics;

    Sammanfattning : This thesis deals with applied mathematics with wavelets as a joint subject. There is an introduction and two extensive papers, of which one is already published in an international journal. LÄS MER

  2. 2. Computational Modeling of Complex Flows

    Detta är en avhandling från Göteborg : Chalmers University of Technology

    Författare :Johan Hoffman; Göteborgs universitet.; Gothenburg University.; [2002]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; computational fluid dynamics; adaptive finite element method; a posteriori error estimate; subgrid modeling; transition to turbulence; multiresolution analysis; object-oriented software; transition to turbulence; multiresolution analysis; object-oriented software; a posteriori error estimate; adaptive finite element method; subgrid modeling;

    Sammanfattning : In this thesis we consider the following aspects of computational modeling of complex flows: (i) subgrid modeling, (ii) stability, (iii) a posteriori error estimation, and (iv) computational platform. We develop a framework for adaptivity and error control for multiscale problems, in particular for turbulent flow, based on a posteriori error estimates. LÄS MER

  3. 3. Fluxes and Mixing Processes in the Marine Atmospheric Boundary Layer

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Erik Olof Nilsson; Anna Rutgersson; Harm Jonker; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Waves; Growing sea; Swell; Marine boundary layer; Air-sea interaction; Mixing; Momentum flux; Wind stress; Flux attenuation; Sensor separation; Large eddy simulation; Multiresolution analysis; Coupling; Wave model; Climate model; Wave age; Meteorology; Meteorologi;

    Sammanfattning : Atmospheric models are strongly dependent on the turbulent exchange of momentum, sensible heat and moisture (latent heat) at the surface. Oceans cover about 70% of the Earth’s surface and understanding the processes that control air-sea exchange is of great importance in order to predict weather and climate. LÄS MER

  4. 4. Approximation of Schrödinger Operators and Scattering Data Using Multiresolution Analysis

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Anders Holst; [1994-05]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Operator Theory; Scattering Theory;

    Sammanfattning : .... LÄS MER

  5. 5. A Chemometric Approach to Process Monitoring and Control - With Applications to Wastewater Treatment Operation

    Detta är en avhandling från IEA, LTH, Box 118, SE-221 00 Lund, Sweden

    Författare :Christian Rosén; [2001]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; robotics; Automation; Elektroteknik; Electrical engineering; wastewater treatment; supervisory control; simulation; process monitoring; principal component analysis PCA ; multivariate statistics; modelling; activated sludge; detection; control engineering; Automatiska system; robotteknik; reglerteknik; Environmental technology; pollution control; Miljöteknik; kontroll av utsläpp;

    Sammanfattning : In this work, various aspects of multivariate monitoring and control of wastewater treatment operation are discussed. A number of important difficulties face operators and process engineers when handling online measurements from wastewater treatment processes. LÄS MER