Sökning: "model of computation"

Visar resultat 16 - 20 av 355 avhandlingar innehållade orden model of computation.

  1. 16. Model Order Reduction Based on Semidefinite Programming

    Författare :Aivar Sootla; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; model reduction; parameterized model reduction; nu-gap metric; semidefinite programming; frequency response matching.;

    Sammanfattning : The main topic of this PhD thesis is complexity reduction of linear time-invariant models. The complexity in such systems is measured by the number of differential equations forming the dynamical system. This number is called the order of the system. LÄS MER

  3. 17. Contributions to Evolutionary Computation

    Författare :Pierre Arne Ingvar Wijkman; Robert Reynolds; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer and systems science; Data- och systemvetenskap; data- och systemvetenskap; Computer and Systems Sciences;

    Sammanfattning : We present in this thesis (1) an alternative model in the field of evolutionary computation, and (2) an experimental platform that can be used to evaluate and compare many different models in evolutionary computation.The presented model is, like other models in evolutionary computation, based on the principle of natural selection. LÄS MER

  4. 18. The analogy as a decision model : a study of management team members in two consulting firms

    Författare :Anders Nilsson; Luleå tekniska universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Accounting and Control; Redovisning och styrning;

    Sammanfattning : Decision making is often characterized as the trading-off between means and ends, facilitating a "rational choice". One central argument of this thesis is that the rational actor metaphor is over-emphasized in management theory. LÄS MER

  5. 19. Multiscale modeling of dynamic recrystallization

    Författare :Ylva Mellbin; Hållfasthetslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dynamic recrystallization; Crystal plasticity; Texture; Grain size strengthening; Vertex model; Nucleation; Particle pinning; Large deformations; Multiscale modeling; GPGPU;

    Sammanfattning : During thermomechanical processing of metals, changes occur in the microstructure of the material which affect its macroscopic properties. By understanding these transformations in the microstructure, it becomes possible to design the processes in a way which yields the desired properties in the finished product. LÄS MER

  7. 20. Optimization of truck tyres selection

    Författare :Zuzana Nedelkova; Göteborgs universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; radial basis function; categorical variables; truck tyres; simulation-based optimization; surrogate model; approximately optimal solution; efficient solution; rolling resistance coefficient; vehicle dynamics; simulation-based optimization;

    Sammanfattning : This thesis, which consists of an introduction and five appended papers, concerns the optimal selection of tyres for a variety of vehicle configurations as well as operating environments. The selection problem stems from a project cooperation between Chalmers University of Technology and Volvo Group Trucks Technology. LÄS MER