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Now showing items 21-30 of 38
Spectrally selective AlXOY/Pt/AlXOY solar absorber coatings for high temprature solar-thermal applications
(University of Western Cape, 2014)
The limited supply of fossil hydrocarbon resources and the negative impact of CO2 emission on the global environment dictate the increasing usage of renewable energy sources. Concentrating solar power (CSP) systems are the ...
Clustering studies of radio-selected galaxies
(University of the Western Cape, 2011)
We investigate the clustering of HI-selected galaxies in the ALFALFA survey and compare results with those obtained for HIPASS. Measurements of the angular correlation function and the inferred 3D-clustering are compared ...
Simulating the neutral hydrogen distribution during cosmic reionization
(University of the Western Cape, 2018)
We improve on the physical treatment of ionising source and sink populations
in the large scale semi-numerical simulations by implementing new physically
motivated parametrizations taken from high-resolution radiative ...
The observed bispectrum for SKA and other galaxy surveys
(University of the Western Cape, 2019)
Next-generation galaxy surveys will usher in a new era of high precision cosmology.
They will increasingly rely on the galaxy bispectrum to provide improved constraints
on the key parameters of a cosmological model to ...
Imprints of Primordial Non-Gaussianity on Large Scale Structure in the Universe
(University of the Western Cape, 2016)
Large scale structure in the universe is one of the most important probing tools for
cosmological modelling. Assuming the hot big bang model of the universe, the expansion
history has undergone two phases of acceleration. ...
A large-scale clustering analysis of radio galaxies
(University of the Western Cape, 2019)
The distribution of the visible structure in the Universe is in part dependent on the
in
uence of the dark matter structure. Measurements of large-scale structure can
therefore be related to the dark matter distribution ...
Transport and thermodynamic properties of rare earth compounds and alloys
(University of the Western Cape, 2017)
Rare-earth (RE) elements possess an incompletely lled 4f shell, which is very small compared
to typical interatomic distances. As a result of this, RE elements and compounds
exhibit characteristic properties, which deviate ...
Cosmology with next generation radio telescopes
(University of the Western Cape, 2019)
The next generation of radio telescopes will revolutionize cosmology by
providing large three-dimensional surveys of the universe. This work presents
forecasts using the technique 21cm intensity mapping (IM) combined ...
Structure property relationship and thermal stability of organic photovoltaic cells
(University of the Western Cape, 2010)
In this thesis, regioregularpoly( 3-hexylthiophene) (rr-P3HT) polymer was used as a light absorption and electron donating material, while the C60 fullerene and its derivative [6,6]-phenyl C61-butyric acid methyl ester ...
Studying chirality in a ~ 100, 130 and 190 mass regions
(University of the Western Cape, 2011)
Chirality is a nuclear symmetry which is suggested to occur in nuclei when the total angular momentum of the system has an aplanar orientation [Fra97, Fra01]. It can occur for nuclei with triaxial shape, which have valence ...