Search for dissertations about: "collocation"

Showing result 16 - 20 of 42 swedish dissertations containing the word collocation.

  2. 16. Grey-box Identification of Distributed Parameter Systems

    Author : Yi Liu; Elling W. Jacobsen; Denis Dochain; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; grey-box modeling; grey-box identification; model reduction; PDE; chromatography; bifurcation; moving mesh methods; orthogonal collocation on moving finite elements; OCMFE; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

    Abstract : This thesis considers the problem of making dynamic models for industrial processes by combining physical modelling with experimental data. The focus is on distributed parameter systems, that is, systems for which the model structure involves partial differential equations (PDE). Distributed parameter systems are important in many applications, e. READ MORE

  4. 17. Determination of Land uplift in Areas not covered by Repeated Levellings with application to South-Norway

    Author : Jan Danielsen; Lars Sjöberg; KTH; []
    Keywords : ;

    Abstract :  The fennoscandia post glacial uplift rate of today, the time averaged vertical velocity, is usually determined by mareographs and repeated leveling. We consider situations where parts of the levelling not are observed only once. READ MORE

  5. 18. Methods for Stochastic Optimal Control under State Constraints

    Author : Per Rutquist; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; control theory; optimal control; stochastic systems; Hamilton-Jacobi-Bellmanequation; Fokker-Planck-Kolmogorov equation;

    Abstract : This thesis looks at a few different approaches to solving stochas-tic optimal control problems with state constraints. The motivatingproblem is optimal control of an energy buffer in a hybrid vehicle,although applications are abundant in a number of areas. READ MORE

  6. 19. On modeling and control of complex dynamic systems

    Author : Limei Ding; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

    Abstract : Nonlinear complex multi-input multi-output process is very troublesome to control. It is usually also ill-modeled. The problem of such process both in control and modeling requires a comprehensive utilization of various techniques. The thesis presents the methods for the modeling and control of complex systems. READ MORE

  7. 20. A multi-resolution approach for modeling flow and solute transport in heterogeneous porous media

    Author : Hrvoje Gotovac; Vladimir Cvetkovic; Alberto Bellin; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Multi-resolution adaptive approach; Atomic and Fup basis functions; Monte- Carlo method; Heterogeneous porous media; Flow; Transport; Travel time; Water engineering; Vattenteknik;

    Abstract : Subsurface processes are usually characterized by rare field experiments, sparse measurements,multi-resolution interpretations, stochastic description, related uncertainties and computational complexity. Over the last few decades, different computational techniques and strategies have become indispensable tools for flow and solute transport prediction in heterogeneous porousmedia. READ MORE