Essays about: "uncertainty propagation"

Showing result 26 - 30 of 35 essays containing the words uncertainty propagation.

  1. 26. Uncertainty Quantification of a Large 1-D Dynamic Aircraft System Simulation Model

    University essay from Linköpings universitet/Reglerteknik; Linköpings universitet/Tekniska fakulteten

    Author : Johan Karlén; [2015]
    Keywords : Uncertainty; Quantification; Dynamic; Modelica; Dymola;

    Abstract : A 1-D dynamic simulation model of a new cooling system for the upcoming Gripen E aircraft has been developed in the Modelica-based tool Dymola in order to examine the cooling performance. These types of low-dimensioned simulation models, which generally are described by ordinary differential equations or differential-algebraic equations, are often used to describe entire fluid systems. READ MORE

  3. 27. Interferometer Design for Attosecond Experiments

    University essay from Lunds universitet/Fysiska institutionen

    Author : Simon Ek; [2015]
    Keywords : FRED; attophysics; atomic physics; stability; simulations; MATLAB; interferometer design; interferometers; error propagation; Physics and Astronomy;

    Abstract : Resolving fast events, such as electron dynamics, requires short light pulses. To this date the shortest available light pulses are created using High-order Harmonic Generation (HHG) and have a duration of a few hundred attoseconds (1 as = $10^{-18}$ s). READ MORE

  4. 28. Uncertainty Propagation Analysis for Low Power Transients at the Oskarshamn 3 BWR

    University essay from KTH/Fysik

    Author : Ante Hultgren; [2014]
    Keywords : ;

    Abstract : .... READ MORE

  5. 29. Reactivity Analysis of Nuclear Fuel Storages : The Effect of 238U Nuclear Data Uncertainties

    University essay from Tillämpad kärnfysik

    Author : Louise Östangård; [2013]
    Keywords : Nuclear data; uncertainties; Total Monte Carlo; TMC;

    Abstract : The aim of this master thesis work was to investigate how the uncertainties in nuclear data for 238U affects the uncertainty of keff in criticality simulations for nuclear fuel storages. This was performed by using the Total Monte Carlo (TMC) method which allows propagation of nuclear data uncertainties from basic nuclear physics to reactor parameters, such as keff. READ MORE

  6. 30. Three material decomposition in dual energy CT for brachytherapy using the iterative image reconstruction algorithm DIRA : Performance of the method for an anthropomorphic phantom

    University essay from Institutionen för medicinsk teknik; Tekniska högskolan

    Author : Robin Westin; [2013]
    Keywords : DECT; Iterative reconstruction; Tissue decomposition; Numerical stability; Uncertainty propagation;

    Abstract : Brachytherapy is radiation therapy performed by placing a radiation source near or inside a tumor. Difference between the current water-based brachytherapy dose formalism (TG-43) and new model based dose calculation algorithms (MBSCAs) can differ by more than a factor of 10 in the calculated doses. READ MORE