Essays about: "Difference equations"

Showing result 1 - 5 of 107 essays containing the words Difference equations.

  1. 1. Implementation of Dyson equation to accelerate convergence in RS-LMTO-ASA code

    University essay from Uppsala universitet/Materialteori

    Author : Elis Uebel; Viktor Frilén; [2024]
    Keywords : Density functional theory; Dyson equation;

    Abstract : First-principle calculations is a key ingredient for us to understand, improve and design new materials. Density functional theory (DFT) [1] has proven to be a very powerful tool and a number of different versions exist depending on the problem at hand. READ MORE

  3. 2. Gender Differences in Risk Attitudes: An Analysis of the Swedish Premium Pension System

    University essay from Göteborgs universitet/Graduate School

    Author : Yasmine Ben Rouha; Preet Kawal Kaur; [2023-06-29]
    Keywords : decision making; investment behavior; gender differences; risk; risk attitude; PPS; PPS choices; funds;

    Abstract : This thesis examines gender differences in investment behavior within the Swedish Premium Pension System for the years 2015-2022. The thesis uses the pension system as a case study to identify possible differences in risk attitude, factors that affect and whether gender has an impact on the level of home bias in investment decisions. READ MORE

  4. 3. Stray capacitance study for HVDC Classic : The use of PSCAD and Mathcad to calculate the equivalent stray capacitance

    University essay from Uppsala universitet/Elektricitetslära

    Author : Saga Dalersand; Fredrik Gjöthlén; [2023]
    Keywords : ;

    Abstract : The reactors placed in the thyristor valve designed by Hitachi Energy have reactor losses which are dependent on the stray capacitance. To find out the stray capacitance, and further get to know the reactor losses, a PSCAD simulation is performed. READ MORE

  5. 4. Recreating optimized airplane boarding methods using real-time Crowd Simulation

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Oscar Olsson; Tim Rundström; [2023]
    Keywords : ;

    Abstract : Flight delays are costly for both airline companies and the environment. A possible resolution to minimize delays is to facilitate the airplane’s boarding process. Studies have to be conducted in order to find the optimal boarding method. Instead of performing experiments in the real-world, a crowd simulation could possibly be utilized. READ MORE

  6. 5. Airspeed estimation of aircraft using two different models and nonlinear observers

    University essay from Linköpings universitet/Fordonssystem

    Author : Alexander Roser; Anton Thunberg; [2023]
    Keywords : sensor fusion; flight mechanics; Kalman filter; extended Kalman filter; unscented Kalman filter; pitot tube; airspeed estimation; simulation;

    Abstract : When operating an aircraft, inaccurate measurements can have devastating consequences. For example, when measuring airspeed using a pitot tube, icing effects and other faults can result in erroneous measurements. READ MORE