Sökning: "Optimization"

Visar resultat 16 - 20 av 2112 avhandlingar innehållade ordet Optimization.

  1. 16. Shape Optimization for Acoustic Wave Propagation Problems

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Rajitha Udawalpola; Uppsala universitet.; Uppsala universitet.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; shape optimization; design optimization; acoustic wave propagation; Helmholtz equation; Boundary Element Method; Finite Element Method; inverse problems; adjoint method; gradient-based optimization; Scientific Computing; Beräkningsvetenskap;

    Sammanfattning : Boundary shape optimization is a technique to search for an optimal shape by modifying the boundary of a device with a pre-specified topology. We consider boundary shape optimization of acoustic horns in loudspeakers and brass wind instruments. LÄS MER

  2. 17. Model Based Optimization of a Complete Diesel Engine/SCR System

    Detta är en avhandling från Division of Combustion Engines, Lund Institute of Technology

    Författare :Claes Ericson; Lunds universitet.; Lund University.; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MPC; model based optimization; real time models; model based control; SCR; optimization; EGR;

    Sammanfattning : Achieving upcoming emissions legislation (Euro VI) for heavy trucks is a serious challenge for the manufacturers. Apart from the increasingly strict limits on nitrogen oxides (NOx) and particulate emissions (PM), the limited amount of fossil fuels as well as alarming climate changes simultaneously drives the demand for low CO2 emissions. LÄS MER

  3. 18. Optimization Framework for Crushing Plants

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Kanishk Bhadani; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dynamic Simulations; Process Optimization; Crushing; Multi-Disciplinary Optimization MDO ; Industry 4.0; Minerals Processing; Multi-Objective Optimization MOO ; Key Performance Indicators KPIs ; Modelling; Screening; Comminution; Classification; Process Improvement;

    Sammanfattning : Optimization is a decision-making process to utilize available resources efficiently. The use of optimization methods provide opportunities for continuous improvements, increasing competitiveness, trade-off analysis and as a support tool for the decision-making process in industrial applications. LÄS MER

  4. 19. Decision Making under Uncertainty in Financial Markets Improving Decisions with Stochastic Optimization

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Jonas Ekblom; Linköpings universitet.; Linköpings universitet.; [2018]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Stochastic programming; Approximate dynamic programming; Financial optimization; Portfolio optimization; Corporate hedging; Scenario generation; Importance sampling;

    Sammanfattning : This thesis addresses the topic of decision making under uncertainty, with particular focus on financial markets. The aim of this research is to support improved decisions in practice, and related to this, to advance our understanding of financial markets. LÄS MER

  5. 20. On Some Combinatorial Optimization Problems Algorithms and Complexity

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Hannes Uppman; Linköpings universitet.; Linköpings universitet.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computational complexity; optimization; constraint satisfaction problem;

    Sammanfattning : This thesis is about the computational complexity of several classes of combinatorial optimization problems, all related to the constraint satisfaction problems.A constraint language consists of a domain and a set of relations on the domain. For each such language there is a constraint satisfaction problem (CSP). LÄS MER