Sökning: "Adaptive methods"

Visar resultat 6 - 10 av 564 avhandlingar innehållade orden Adaptive methods.

  1. 6. Resilience in High Risk Work : Analysing Adaptive Performance

    Författare :Amy Rankin; Henrik Eriksson; Margareta Lützhöft; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Resilience Engineering; Safety Management; Adaptive Capacity; Improvisation;

    Sammanfattning : In today’s complexsocio-technical systems it is not possible to foresee and prepare for allfuture events. To cope with the intricacy and coupling between people,technical systems and the dynamic environment people are required tocontinuously adapt. LÄS MER

  3. 7. Adaptive Finite Element Methods for Compressible Two-Phase Flow

    Författare :Erik Burman; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; adaptive finite element methods; two-phase flow; compressible flow; conservation laws; hyperbolic systems; a posteriori error estimates; streamline diffusion; stability analysis; quantitative error control; adaptive algorithms; quantitative error control;

    Sammanfattning : In this thesis we develop, apply and analyse adaptive finite element methods with error control for compressible flow problems, focusing in particular on two-phase flow. The adaptive algorithms, aiming at quantitative error control with efficient use of computational resources, are based on a posteriori error estimates, where the error is estimated in terms of the computed solution, the local mesh-size and certain stability factors. LÄS MER

  4. 8. Adaptive finite element methods for multiphysics problems

    Författare :Fredrik Bengzon; Mats Larson; Harald van Brummelen; Umeå universitet; []
    Nyckelord :finite element methods; multiphysics; a posteriori error estimation; duality; adaptivity; discontinuous Galerkin; fractional step methods;

    Sammanfattning : In this thesis we develop and analyze the performance ofadaptive finite element methods for multiphysics problems. Inparticular, we propose a methodology for deriving computable errorestimates when solving unidirectionally coupled multiphysics problemsusing segregated finite element solvers. LÄS MER

  5. 9. Filter bank design for digital speech signal processing : methods and applications

    Författare :Jan Mark de Haan; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Adaptive filter theory; Subband filter banks;

    Sammanfattning : Adaptive filter theory is an important subject in the field of signal processing and has numerous applications in speech processing, telecommunications and mechanical engineering. Examples in speech processing include suppression of background noise, echo cancellation and dereverberation (acoustic path equalization). LÄS MER

  7. 10. Adaptive structural design - Integration of computational tools for CAD, adaptive FEM and optimization

    Författare :Per Kettil; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Adaptive; structural mechanics; optimization; integration; FEM; CAD; design;

    Sammanfattning : BackgroundConstruction is one of the largest industries with major impact on economy, environment and society. Improved structural design is important since the decisions made during the design process strongly influence all later stages, i.e. LÄS MER