Sökning: "Lagrangian decomposition"

Visar resultat 1 - 5 av 25 avhandlingar innehållade orden Lagrangian decomposition.

  1. 1. Eulerian-Lagrangian modeling of particle motion in exhaust gas aftertreatment systems

    Författare :Henrik Ström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; urea-SCR; particle trapping; flow-through filter; urea decomposition; diesel particulate matter; particle motion; particle filter; AdBlue-spray; Eulerian-Lagrangian modeling;

    Sammanfattning : In the work to design and optimize new aftertreatment system devices for NOx reduction and particulate matter removal in lean engine exhaust (such as diesel exhaust), it is of great help to be able to perform quick, robust and reliable computer simulations of system performance. A suitable platform for such simulations is Computational Fluid Dynamics (CFD) software. LÄS MER

  3. 2. Decomposition Methods for Combinatorial Optimization

    Författare :Uledi Ngulo; Torbjörn Larsson; Nils-Hassan Quttineh; Egbert Mujuni; Athanasios Migdalas; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis aims at research in the field of combinatorial optimization. Problems within this field often posses special structures allowing them to be decomposed into more easily solved subproblems, which can be exploited in solution methods. These structures appear frequently in applications. LÄS MER

  4. 3. Mathematical Modelling and Methods for Load Balancing and Coordination of Multi-Robot Stations

    Författare :Edvin Åblad; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; makespan minimization; Smart Assembly 4.0; Voronoi diagram; decomposition; automotive manufacturing; mathematical modelling; vehicle routing; motion planning; set packing; continuous collision detection;

    Sammanfattning : The automotive industry is moving from mass production towards an individualized production, individualizing parts aims to improve product quality and to reduce costs and material waste. This thesis concerns aspects of load balancing and coordination of multi-robot stations in the automotive manufacturing industry, considering efficient algorithms required by an individualized production. LÄS MER

  5. 4. On Optimization in Design of Telecommunications Networks with Multicast and Unicast Traffic

    Författare :Mikael Prytz; KTH; []
    Nyckelord :telecommunications; network design; network dimensioning; network configuration; multicast traffic; location; network optimization; Lagrangian decomposition; branch-and-bound; branch-and-cut; shortest path routing;

    Sammanfattning : .... LÄS MER

  7. 5. Electricity markets operation planning with risk-averse agents: stochastic decomposition and equilibium

    Författare :Nenad Jovanovic; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; decomposition techniques; market equilibrium; risk-averse agents; stochastic optimization;

    Sammanfattning : The growing penetration of renewable energy sources in electricity systems requires adapting operation models to face the inherent variability and uncertainty of wind or solar generation. In addition, the volatility of fuel prices (such as natural gas) or the uncertainty of the hydraulic natural inflows requires to take into account all these sources of uncertainty within the operation planning of the generation system. LÄS MER