Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 43 for “"parametrisation"”.
-
A SSIMPLE Approach to Surfactant Self-Assembly using DPD Simulations
… of the simulated system. Herein, a new DPD parametrisation method, based on the SSIP (Surface Site Interaction Point) model previously developed in the Hunter group, is proposed. Experimental data were collected using a combination of NMR and US-Vis titrations in order to expand the …
-
Modelling of Spray Combustion with Doubly Conditional Moment Closure
… and spray evaporation on the flame. Using a parametrisation of the flame structure, based on mixture fraction and reaction progress variable permits us to resolve premixed, non-premixed and intermediate combustion modes. In the first part of this thesis, the model development is presented. …
-
Planar Motion and Visual Odometry: Pose Estimation from Homographies
… height above the ground plane. In Paper A, a parametrisation of the camera motion and pose is presented, along with an iterative approach for determining the parameters. Paper B describes how to extend the method in Paper A to use more than one homography at a time in the estimation process, …
-
Tyre Inflation Pressure control to improve vehicle ride comfort on rough roads
… and validate the model, namely; pneumatic system parametrisation tests, APG (Aberdeen Proving Ground) bump tests and Belgian paving tests. The pneumatic system parametrisation tests show that the discharge coefficient is approximately 0.07 for choked flow and tappers off to zero for unchoked flow. …
-
Finite elements for higher-order problems in isogeometric analysis and statistical inference
… the available smooth B-splines in the geometric parametrisation. The SB-splines are globally smooth, non-negative, have no breakpoints within the elements, and reduce to conventional B-splines away from the unstructured regions of the mesh. Remarkably, the optimal convergence rates are …
-
Molecular simulation method development and implementation for fuel cell catalyst layers
… a rich phase diagram and devise a top-down parametrisation method based on compressibility and surface tension that enables to capture the correct behaviour of real liquids v as well as mixtures. We thoroughly discuss the role of coarse-graining degree as a simulation input and present a way …
-
Optimisation of condition number for eigenstructure problems
… and Singular Values. The thesis presents the parametrisation of closed-loop eigenframes result by the method generated in [4]. Within this thesis, a non-smooth algorithm has been developed in order to select the most orthogonal closed-loop eigenframe and so the influence of selected …
-
Computations of form and stability of rotating drops with finite elements
… an algorithm which avoids an explicit global parametrisation of the drop surface and which does not need artificial conjectures about the symmetry of the drops. We use ideas introduced by G. Dziuk for computing evolutionary surfaces. The results of our numerical experiments extend the results …
-
Developing an Automatic Generation Tool for Cryptographic Pairing Functions
… hashing a point to the required group using the parametrisation of the chosen family of curves. Support for several multi-precision libraries has been incorporated: Magma, MIRACL and RELIC are already included, but more are possible.
-
A linear framework for character skinning
… metrics by applying them to the problems of parametrisation, level-of-detail (LOD) and frustum culling. These ltletrics provide information about the entire range of poses of an animated character, so they are able to produce better results than considering only a single pose of the …
-
Untersuchung der ln (1/x) -Verteilung mit JADE-Daten bei 22-44 GeV
… used in this work is the Fong-Webber parametrisation. At small x the Fong-Webber parametrisation was performed by summing all divergences of the NLLA, one of the QCD computing approaches which uses all leading and next-to-leading logarithms in a given expansion parameter, for example …
-
Mesoscale wind atlas of South Africa
… towards different boundary layer and cwnulus parametrisations as well as observational and grid nudging is investigated in depth. New error metrics are specifically designed and applied based on 17 reliable lOni weather stations around the country with the specific purpose of evaluating model …
-
Mesoscale Wind Atlas of South Africa
… towards different boundary layer and cwnulus parametrisations as well as observational and grid nudging is investigated in depth. New error metrics are specifically designed and applied based on 17 reliable lOni weather stations around the country with the specific purpose of evaluating model …
-
Distributed approaches for coverage missions with multiple heterogeneous UAVs for coastal areas.
… waypoints and providing an autopilot parametrisation. Finally, a marine studies test case of buoy information extraction is presented, demonstrating in that manner the flexibility and modular nature of the proposed framework.
-
Tomographic Reconstruction of 2-D Atmospheric Trace Gas Distributions from Active DOAS Measurements
… to their extension how the optimal choice of parametrisation (in terms of number and kind of basis functions) and a priori can tremendously improve the reconstruction. Regularisation plays a minor role. Proposals for retrieving peak distributions by combining different parametrisations are …
-
Biomolecular Simulations with Machine Learning Potentials
… emerged as a powerful paradigm, replacing manual parametrisation with a purely data driven approach and learning to reproduce the outputs of more expensive electronic structure calculations at greatly reduced computational cost. This thesis introduces new developments that enable modelling …
-
Approximate credibility intervals on electromyographic decomposition algorithms within a Bayesian framework
… given a physiological model as well as a re-parametrisation of orthogonal matrices which is helpful in pre-empting floating point errors when incorporating this prior of the mixing matrix into an algorithm which estimates the un-mixing matrix. In experiments done using EMG data, it is found …
-
MECHANISMS FOR THE EXISTENCE OF DIAGONAL SOUTHERN HEMISPHERE CONVERGENCE ZONES
… investigate this mechanism. In an experiment the parametrisation of convection is modified: dynamic Rossby wave forcing is decoupled from the usual thermodynamic response. Consequently, Rossby waves over the SPCZ region are not dissipated, confirming the feedback in the framework. Furthermore, it …
-
Active vibration control of civil engineering structures
… responses of regulated signals via a deadbeat parametrisation of all stabilising controllers in discrete-time. The method incorporates constraints on the magnitude and rate of the control signal and is solved via efficient Linear Programming methods. It is argued that this type of optimisation …
-
Learning of Type-2 Fuzzy Logic Systems using Simulated Annealing.
… and a novel method to overcome some parametrisation difficulties when learning general type-2 fuzzy logic systems. The work shows that interval type-2 fuzzy logic systems added more abilities to modelling information and handling uncertainties than type-1 fuzzy logic systems but with …
Page 1 of 3