Sökning: "Stochastic Optimisation"

Visar resultat 1 - 5 av 17 avhandlingar innehållade orden Stochastic Optimisation.

  1. 1. Satistical Modelling Of CO2 Exchange Between Land And Atmosphere : Using Stochastic Optimisation And Gaussian Markov Random Fields

    Författare :Unn Dahlén; Spatio-Temporal Stochastic Modelling Group; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Gaussiska Markovfält; Stokastisk optimering; CO2-flöden; Spatial statistik; Stochastic Optimisation; Gaussian Markov Random Fields; Atmospheric inverse modelling; Spatial statistics; Computational statistics;

    Sammanfattning : This thesis focuses on the development and application of efficient mathematicaltools for estimating and modelling the exchange of carbon dioxide (CO2) between the Earth and its atmosphere; here referred to as the global CO2 surface flux.There are two main approaches for estimating the CO2 flux: Processed based(bottom-up) modelling and atmospheric inversion (top-down) modelling. LÄS MER

  2. 2. Analysis and Optimisation of Real-Time Systems with Stochastic Behaviour

    Författare :Sorin Manolache; Petru Eles; Zebo Peng; Xiaobo Hu; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Embedded systems; Real-time systems; System level design and optimisation; Stochastic execution times; Performance analysis; Networks-on-chip; Computer science; Datavetenskap;

    Sammanfattning : Embedded systems have become indispensable in our life: household appliances, cars, airplanes, power plant control systems, medical equipment, telecommunication systems, space technology, they all contain digital computing systems with dedicated functionality. Most of them, if not all, are real-time systems, i.e. LÄS MER

  3. 3. Optimisation of Long-Term Industrial Planning

    Författare :Peter Forsberg; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optimisation under uncertainty; Transition strategy optimisation; Investment strategies; Multi-objective decision making;

    Sammanfattning : In this thesis, long-term optimisation methods for industrial transition processes have beendeveloped, taking monetary and environmental considerations into account. Two different methods forinvestment optimisation have been developed. LÄS MER

  4. 4. Manufacturing management and decision support using simulation-based multi-objective optimisation

    Författare :Leif Pehrsson; David Stockton; Ng Amos; Mats Jackson; Raouf Hamzaoui; Högskolan i Skövde; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing Management; Decision Support; simulation; Multi-objective; optimisation; Production systems; Teknik; Technology;

    Sammanfattning : A majority of the established automotive manufacturers are under severe competitive pressure and their long term economic sustainability is threatened. In particular the transformation towards more CO2-efficient energy sources is a huge financial burden for an already investment capital intensive industry. LÄS MER

  5. 5. Voltage Dip (Sag) Estimation in Power Systems based on Stochastic Assessment and Optimal Monitoring

    Författare :Gabriel Olguin; Chalmers University of Technology; []
    Nyckelord :power quality; symmetr?cal components; stochastic methods; impedance matrix; voltage dips; integer optimisation; power systems; short-circuit faults; voltage sags;

    Sammanfattning : This dissertation deals with the statistical characterization of the performance of power systems in terms of voltage dips (sags). It presents a method named voltage dip estimation that extends monitoring results to buses not being monitored. LÄS MER