Essays about: "Christian Karlsson"

Showing result 1 - 5 of 11 essays containing the words Christian Karlsson.

  1. 1. Regression Models of 3D Wakes for Propellers

    University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Author : Christian Karlsson; [2018]
    Keywords : Propeller design; Wake; Velocity distribution; Regression analysis; Fourier series; Skewed-Gaussians; Coherent structure coloring; Propeller design; Medströmsfält; Hastighetsfördelning; Regressionsanalys; Fourierserier; Skeva-Gaussfördelningar; Koherenta struktureringsfärgmetoden;

    Abstract : In this work, regression models for the wake field entering a propeller at certain axial andnominal position have been proposed. Wakes are non-uniform flows following a body immersedin a viscous fluid. We have proposed models for the axial and tangential velocity distribution asfunctions of ship hull and propeller measures. READ MORE

  2. 2. The Perpetuation of Jihad: Boko Haram, Charismatic Constructions of Jihadist Ideology and the Rise of Abubakar Shekau

    University essay from Lunds universitet/Statsvetenskapliga institutionen

    Author : Christer Karlsson; [2016]
    Keywords : Jihadism; Boko Haram; Charismatic Leadership; Ideology; Terrorism; Law and Political Science;

    Abstract : The Nigerian jihadist-terrorist movement Boko Haram reached international notoriety especially after the bombing of an UN-headquarters in Abuja in 2011 and after the kidnappings of 276 schoolgirls in 2014. But these events are minor parts of rapid evolutionary ideological developments and expansion. READ MORE

  3. 3. The relationship between CSR and financial performance : A quantitative study examining Swedish publicly traded companies

    University essay from Linnéuniversitetet/Institutionen för marknadsföring (MF); Linnéuniversitetet/Institutionen för marknadsföring (MF); Linnéuniversitetet/Institutionen för marknadsföring (MF)

    Author : Christian Hagberg; Sebastian Johansson; Anton Karlsson; [2015]
    Keywords : CSR; financial performance; relationship; Swedish publicly traded companies; industry; firm size.; CSR; finansiella resultat; relation; Svenska börsnoterade företag; industri; företagets storlek.;

    Abstract : Purpose: Examine the relationship between Corporate Social Responsibility (CSR) and financial performance in Swedish publicly traded companies in the years 2006-2009. Hypothesis: H1: There is a positive linear relationship between a company's CSR performance and its accounting based financial performance (represented by ROA). READ MORE

  4. 4. A comparison of two multilevel Schur preconditioners for adaptive FEM

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : Christian Karlsson; [2014]
    Keywords : computational science; PDE; partial differential equations; FEM; finite element method; adaptive mesh refinement; Schur complement; multilevel method; iterative method; conjugate gradient method; beräkningsvetenskap; PDE; partiella differentialekvationer; FEM; finita elementmetoden; adaptivt beräkningsnät; adaptiv mesh; Schurkomplement; multilevelmetod; iterativ metod; konjugerade gradientmetoden;

    Abstract : There are several algorithms for solving the linear system of equations that arise from the finite element method with linear or near-linear computational complexity. One way is to find an approximation of the stiffness matrix that is such that it can be used in a preconditioned conjugate residual method, that is, a preconditioner to the stiffness matrix. READ MORE

  5. 5. Value System for Sustainable Manufacturing : A study of how sustainability can create value for manufacturing companies

    University essay from Linköpings universitet/Industriell miljöteknik

    Author : Christian Karlsson; [2011]
    Keywords : sustainability manufacturing value intangible;

    Abstract : This thesis was conducted in the field of Environmental technology for the Sustainability & Technology Assessment group, at Singapore Institute of Manufacturing Technology. Singapore Institute of Manufacturing Technology is a research institute, striving to contribute to Singapore’s industrial capital through use-inspired research. READ MORE