Essays about: "inverse theory"

Showing result 21 - 25 of 56 essays containing the words inverse theory.

  1. 21. Artificial Neural Networks to Solve Inverse Problems in Quantum Physics

    University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen; Lunds universitet/Fasta tillståndets fysik

    Author : Victor Lantz; [2019]
    Keywords : Artificial Neural Networks; ANN; Deep learning; Quantum physics; Inverse problem; Inverse; Machine learning; Density functional theory; DFT; Physics; Computational physics; Technology and Engineering;

    Abstract : Inverse problems are important in quantum physics as their solutions are essential in order to describe a number of systems using measurable information, e.g. excitation energies or material properties. The problem with inverse problems is that they are usually very hard to solve. READ MORE

  2. 22. Diffusion MRI of Brain Tissue: Importance of Axonal Trajectory

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Kärnfysik

    Author : Jan Brabec; [2018]
    Keywords : dMRI; diffusion magnetic resonance; axonal trajectory; axonal geometry; undulations; modeling; axons; inverse problem; diffusion spectrum; time-dependent diffusion; Physics and Astronomy;

    Abstract : Obtaining microstructural information non-invasively on brain tissue remains a challenge. Diffusion magnetic resonance imaging (dMRI) is an imaging method that can provide such information. That includes geometrical considerations of nerve cells projections, axons, that are present in the white matter of the human brain. READ MORE

  3. 23. Analysis of autonomous flight algorithms for an unmanned aerial vehicle

    University essay from Umeå universitet/Institutionen för fysik

    Author : Mattias Sjöberg; [2018]
    Keywords : UAV; SLAM; Split-And-Merge; APFA; V-REP; Inverse dynamics; FBLC; EKF;

    Abstract : Unmanned Aerial Vehicles (UAV) have been heavily studied in the past decade, where autonomous flights have been a popular subject. More complex applications have led to higher requirements on the autonomous flight algorithms and the absence of performance data complicates the selection of what algorithm to use for various applications. READ MORE

  4. 24. Income Inequality and Household Debt : A panel data study of 17 OECD-countries from 1995-2015

    University essay from Uppsala universitet/Nationalekonomiska institutionen

    Author : Niclas Hvalgren; Linnea Englund Davidsson; [2018]
    Keywords : Household debt; Income inequality; Reference consumption; Relative income hypothesis of consumption; Panel data analysis; OECD; Advanced economies;

    Abstract : This study explores the relationship between income inequality and household indebtedness using panel data on 17 OECD-countries over the time period 1995-2015. Motivated by relative income theory of consumption and previous empirical research we anticipate a non-monotonic relationship between changes in household debt and income inequality (measured by the Gini- coefficient), as dynamics between different groups of households in the income spread is expected to vary at different levels of inequality. READ MORE

  5. 25. What Matters in Swedish Corporate Governance?

    University essay from Uppsala universitet/Företagsekonomiska institutionen

    Author : Axel Edholm; Ludvig Karlsson; [2018]
    Keywords : Corporate governance; firm performance; Agency Theory; board size; gender diversity; director ownership and dividend policy.;

    Abstract : By using five measures of corporate governance, this paper sheds light on the relationship between corporate governance, firm performance and firm valuation in a sample of large Swedish firms between 2013-2016. The study is conducted on the grounds of the Agency Theory as proposed by Jensen and Meckling (1976) and influenced by corporate governance research by Bhagat and Bolton (2008). READ MORE