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Found 3 essays matching the above criteria.

  1. 1. Geometrical and Electronic Structure Characterization of Conducting Hydroquinone Substituted Polypyrrole

    University essay from Uppsala universitet/Materialteori

    Author : Anton Segerkvist; [2016]
    Keywords : ;

    Abstract : The fundamental electronic and geometric structures of charged polypyrrole and a hydroquinone substituted polypyrrole, poly(pyrrol-3-ylhydroquinone), were investigated. A single electron was constrained over different sizes of the polymer chains, a polaron, with the purpose of finding the polaron size which minimizes the excitation energy. READ MORE

  2. 2. A Comparison of Linear and Nonlinear Finite Element Stabilization Techniques for Fluid Problems

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Anton Segerkvist; [2015]
    Keywords : ;

    Abstract : The standard Galerkin, entropy viscosity (EV) and streamline upwind Petrov Galerkin (SUPG) methods were implemented for the advection equation and the Navier-Stokes equations for an incompressible fluid to determine which of the methods is better in terms of accuracy and time requirements. For the advection equation a disk with a rotating stream was modeled for both a continuous and a discontinuous initial condition. READ MORE

  3. 3. Structural Characterisation and Optical Properties of Nanoporous Gold Films

    University essay from Uppsala universitet/Fasta tillståndets fysik

    Author : Anton Segerkvist; [2014]
    Keywords : Nonoporous Materials; Effective Medium Theory; Hilfer Equation;

    Abstract : Nanoporous metal films have many applications in a great variety of scientific fields, and especially nanoporous gold films have many applica- tions in green nanotechnology. Hence, structural and optical properties of such materials were investigated. READ MORE