Browsing by Subject "Scientific Computing"
Now showing items 115 of 15

A Test Set for an Adaptive Moving Grid PDE Solver with TimeDependent Adaptivity
(2011)We have tested a moving grid method with timedependent adaptivity parameter on a wide variety of test problems. The realtime calculated adaptivity parameter makes the method more robust, removing the need to rescale ... 
Accelerating finite differences for solving a barotropic ocean model on the GPU
(2012)The twodimensional barotropic vorticity equation is one of basic equations of ocean dynamics. It is important to have efficient numerical solution techniques to solve this equation. In this paper, we present an ... 
Crystallization and Glassy Behaviour in ShortRange Attractive SquareWell Fluids
(2011)Squarewell systems with attractive ranges of over 25% of the particle diameter are thoroughly studied in simulations. Most of these simulations are performed with monodisperse or binary systems while experiments are most ... 
IDR(s)
(2011) 
Image reconstruction methods for emission based tomography
(2011)PET and SPECT scans are performed by in vitro injection of radioactive tracers to map the activity of specific cells. The MLEM and the OSEM algorithms are ExpactationMaximization methods which incorporate the Poisson ... 
Matrix Partitioning: Optimal bipartitioning and heuristic solutions.
(2011)An important component of many scientific computations is the matrixvector multiplication. An efficient parallelization of the matrixvector multiplication would instantly lower computation times in many areas of scientific ... 
Modelling Martial Arts Techniques
(2011) 
Numerical solution of twodimensional fingering patterns.
(2011)In this report we numerically simulate fingering patters in unsaturated porous media using a combination of implicit and explicit finite difference methods. These fingering patterns can be modeled using the nonequilibrium ... 
Rrefinement in imageprocessing via the PDEapproach
(2011)(Digital) Signal Processing plays a huge role in computer vision. We will use two related Partial Differential Equations (PDEs), known for their smoothing feature, to investigate the removal of noise in (digital) signals, ... 
Towards Simulation Studies of Crystal Structures for Superellipsoids by Floppy Box Monte Carlo Method
(2011)We will present a simulation technique, by which the crystal structure of superballs can be analysed. Superballs are particles which can be defined by the implicit equation xǫ + yǫ + zǫ <= 1, ǫ ∈ [0,∞[. These ...