Browsing Faculty of Natural Science by Title
Now showing items 527-546 of 2566
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Determination of Thallium and Indium with an Electrochemically-reduced Graphene Oxide-Carbon Paste Electrode by Anodic Stripping Voltammetry
(University of the Western Cape, 2018)In this study, graphene oxide was synthesized by oxidizing graphite using the modified Hummer's method. The graphene oxide was characterized by Raman Spectroscopy, Fourier Transform Infrared Spectroscopy, High Resolution ... -
Determination of the gas-flow patterns inside the hot-wire chemical vapor deposition system, using computational fluids dynamics software (fluent)
(University of the Western Cape, 2009)Computational Fluid Dynamics is the analysis of a system involving fluid flow, heat transfer and associated phenomena such as chemical reactions by means of a computer-based simulation. The simulations in this study are ... -
Determination of the photopeak detection efficiency of a HPGe detector, for volume sources, via Monte Carlo simulations
(University of the Western Cape, 2005)The Environmental Radioactivity Laboratory (ERL) at iThemba LABS undertakes experimental work using a high purity germanium (HPGe) detector for laboratory measurements. In this study the Monte Carlo transport code, MCNPX, ... -
Determination of the Spectroscopic Quadrupole moment of the first 2+ excited state in 32S
(University of the Western Cape, 2019)In this work we have determined the spectroscopic or static quadrupole moment of the rst excited state (QS (2+1) lying at 2230.6 keV in 32S using the reorientation e ect. The Coulomb-excitation experiment at safe ... -
Determination of total organic carbon content using Passey’s ΔLogR method in coals of the Central Kalahari Karoo Basin, Botswana.
(University of the Western Cape, 2016)The Kalahari Karoo Basin is one of several basins in southern Africa filled with Late Carboniferous to Jurassic sediments that are primary targets for Permian aged coal. In order to determine the Coalbed Methane (CBM) ... -
Determination of toxic elements, rare earth elements and radionuclides in coal fly ash, products and waste
(University of the Western Cape, 2014)Coal fly ash has been studied extensively to understand the environmental impacts associated with its disposal, management and reuse. Although several beneficiation processes have been proposed, there has been little or ... -
Determining crop coefficients for irrigated fruit tree crops using readily available data sources
(University of the Western Cape, 2022)The climate variability and climate change-induced events experienced worldwide have caused a significant decrease in the rainfall volume. South Africa is considered to be one of the driest countries in the world, as it ... -
Determining the efficiency of in situ iron remediation (ISIR) technology using ozonation in the Atlantis primary aquifer, Western Cape, South Africa
(University of the Western Cape, 2022)In situ iron remediation (ISIR) applications has become a popular technique for reducing iron and manganese concentrations in boreholes that impose aesthetic and potable issues to groundwater quality and water supply ... -
Determining the observer’s velocity using radio continuum surveys
(University of the Western Cape, 2019)In the standard (‘concordance’) model of Cosmology, there is a fundamental assumption that the Universe is statistically isotropic and homogeneous on large scales, known as the Cosmological Principle. The Cosmological ... -
Determining the socio-economic value of groundwater: Franschhoek case study
(University of the Western Cape, 2011)The Western Cape, a province of South Africa is facing increased pressure to develop new supplies of fresh water to cater for the regions rapidly growing demand. Groundwater is being explored as a possible contributor to ... -
Determining the Spectroscopic Quadrupole Moment Qs of the 2+1 state in 40Ar
(University of the Western Cape, 2017)The rst reorientation-e ect Coulomb-excitation experiment has been performed at iThemba LABS by bombarding 40Ar beams on a heavy 208Pb target at a \safe" energy of Elab =143.2 MeV. The goal was to determine, the spectroscopic ... -
Determining the spectroscopic quadrupole moment of the first 2+ state in 36Ar
(University of the Western Cape, 2019)A series of reorientation-effect Coulomb-excitation experiments were carried out at iThemba LABS from April to May 2016. Enriched ion beams of Ar, Ar and S were bombarded at safe energies, well below the ... -
Developing a citizen science framework for water resources protection to facilitate operationalization of resource directed measures at catchment level, South Africa
(University of Western Cape, 2021)Maintenance of water resources protection practice for water availability, uninterrupted water utilization, and for ecosystem integrity is critical for sustainable achievement of resource security for all. Therefore, ... -
Developing a citizen science framework for water resources Protection to facilitate operationalization of resource Directed measures at catchment level, South Africa
(2021)Maintenance of water resources protection practice for water availability, uninterrupted water utilization, and for ecosystem integrity is critical for sustainable achievement of resource security for all. Therefore, ... -
Developing a generic hazard analysis critical control point (HACCP) system for the wheat milling industry
(University of the Western Cape, 2005)In South Africa there is a need within the milling industry for controlling food safety especially due to customer's demands and government's regulations. The best way to ensure food safety is with the implementation of a ... -
Developing a hydrogeological conceptual model for subterranean groundwater control areas using remote sensing techniques, Hout catchment, Limpopo, South Africa
(University of the Western Cape, 2020)Crystalline basement aquifers are an important source of water supply in sub-Saharan Africa for various purposes. These aquifers are characterized by fractured rock networks which form pathways for groundwater recharge, ... -
Developing a lateral flow device for the detection of novel breast cancer biomarkers
(University of the Western Cape, 2023)Breast cancer is the most prevalent malignancy and one of the leading causes of death in women worldwide. Delayed diagnosis of breast cancer greatly reduces the effectiveness of treatment and is considered one of the major ... -
Developing a model of school climate unique to secondary schools in South Africa: A multilevel analysis approach
(University of the Western Cape, 2018)The educational landscape in South Africa is unique and has also seen many changes since the dawn of democracy more than 20 years ago. The apartheid education system was marred by severe inequalities between schools and, ... -
Developing a quantum dot nanotracker for endophytic bacteria translocation in plants
(University of the Western Cape, 2017)Endophytes are bacteria that have been shown in previous studies to promote plant growth without eliciting any sign of infection or plant disease, as well as promote bio-fortification and has thus gained much attention ... -
Developing a remotely-sensed framework for fire monitoring in the Western Cape, South Africa
(University of Western Cape, 2021)For a long time, fire dynamics has been misunderstood and viewed as either a destructive force or an ecological necessity. The Western Cape Province in South Africa experiences the frequent occurrence of fires, due to the ...