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Now showing items 1-10 of 54

#### Developing an integrated decision support system for an oil refinery.

(1998)

This thesis considers the problem of residue upgrading operations in an oil
refinery. Visbreaking is a residue-upgrading process that improves profitability
of a refinery. The economics of converting the heavy residue ...

#### Double-diffusive convection flow in porous media with cross-diffusion.

(2011)

In this thesis we study double-diffusive convection and cross-diffusion effects in flow
through porous media. Fluid flows in various flow geometries are investigated and
the governing equations are solved analytically ...

#### Asymptotic analysis of singularly perturbed dynamical systems.

(2011)

According to the needs, real systems can be modeled at various level of resolution.
It can be detailed interactions at the individual level (or at microscopic level) or a
sample of the system (or at mesoscopic level) and ...

#### Transport on network structures.

(2013)

This thesis is dedicated to the study of flows on a network. In the first part of the work, we
describe notation and give the necessary results from graph theory and operator theory that will
be used in the rest of ...

#### Initial conditions of the universe : signatures in the cosmic microwave background and baryon acoustic oscillations.

(2012)

In this thesis, we investigate the signatures of isocurvature initial conditions in the cosmic microwave
background (CMB) through the temperature and polarization anisotropies, and in the
large-scale structure distribution ...

#### Applications of embedding theory in higher dimensional general relativity.

(2012)

The study of embeddings is applicable and signicant to higher dimensional theories of
our universe, high-energy physics and classical general relativity. In this thesis we investigate
local and global isometric ...

#### Age structured models of mathematical epidemiology.

(2013)

We consider a mathematical model which describes the dynamics for the spread of a directly
transmitted disease in an isolated population with age structure, in an invariant habitat, where
all ...

#### Optimisation of the population Monte Carlo algorithm : application to cosmology.

(2015)

In this thesis we study the Population Monte Carlo (PMC) algorithm and utilise simulations to
improve the efficiency of the algorithm by optimising the algorithm parameters. We then ap
ply these optimisation results to ...

#### Computational study of high order numerical schemes for fluid-structure interaction in gas dynamics.

(2013)

Solving the fluid-structure interaction (FSI) problems is particularly challenging. This is because the coupling of the fluid and structure may require different solvers in different points of the solution domain, and with ...

#### Fischer Clifford matrices and character tables of certain groups associated with simple groups O+10(2) [the simple orthogonal group of dimension 10 over GF (2)], HS and Ly.

(2011)

The character table of any finite group provides a considerable amount of information about a group and the use of character tables is of great importance in Mathematics and Physical Sciences. Most of the maximal subgroups ...