Browsing by Title
Now showing items 7491-7510 of 17990
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Gabor filter parameter optimization for multi-textured images : a case study on water body extraction from satellite imagery.
(2012)The analysis and identification of texture is a key area in image processing and computer vision. One of the most prominent texture analysis algorithms is the Gabor Filter. These filters are used by convolving an image ... -
Gag-protease driven viral replication capacity among HIV-1 subtypes: Implications for disease progression, epidemic spread and vaccine design.
(2020)The HIV-1 epidemic in sub-Saharan Africa is heterogeneous with diverse unevenly distributed subtypes and regional differences in prevalence. Subtype-specific differences in disease progression rate and transmission efficiency ... -
Galactosylated liposomes with proton sponge capacity : a novel hepatocyte-specific gene transfer system.
(2012)Hepatocyte-directed liposomal gene delivery systems have received much attention in view of the present lack of suitable treatment alternatives for several liver-associated disorders. While targeting of liposomes to the ... -
Gamification of e-Learning: an investigation into the influence of gamification on student motivation.
(2017)Traditional teacher-centred learning is being confronted by an increasing awareness of the value of student-centred learning. E-learning, despite its limitations, is often presented as a solution to learning challenges ... -
Garbage picking as a strategy for survival : a case study of a sub- sector of the informal sector.
(1987)In the past few years there has been a dramatic increase in research dealing with the informal sector in South Africa. This research is often motivated by academic curiosity as well as a growing concern over poverty and ... -
Garch modelling of volatility in the Johannesburg Stock Exchange index.
(2013)Modelling and forecasting stock market volatility is a critical issue in various fields of finance and economics. Forecasting volatility in stock markets find extensive use in portfolio management, risk management and ... -
Garden refuse composting as part of an integrated zero waste strategy for South African municipalities.
(2010)Garden refuse has been seen to constitute a significant proportion of the total waste stream received at landfills in the eThekwini Municipal Area (EMA). With the growing demand for conserving “precious landfill airspace” ... -
Gas residence time testing and model fitting : a study of gas-solids contacting in fluidised beds.
(1984)This work is concerned with the effect of vessel geometry on the hydrodynamics of fluidisation of a bed of milled iron oxide. The effect of going from a cold model representative of a typical pilot plant reactor to one ... -
Gas-phase epoxidation of hexafluoropropylene.
(2012)A process was developed for the production of hexafluoropropylene oxide via the gas-phase oxidation of hexafluoropropylene with molecular oxygen. The non-catalytic oxidation reaction was investigated in an isothermal, ... -
Gas-phase ethylene polymerization studies using a magnesium chloride-supported Ziegler-Natta catalyst.
(2006)The gas phase polyethylene production process is the most recently developed and boasts many -
Gaseous and particulate emissions.
(2000)The need to limit sulphur dioxide, nitrous oxides and particulate matter emissions from fossil fuel combustion processes is now a major factor in the design, construction and operation of plants. Over the past 5 to 10 ... -
Gastrointestinal (nematode) infections in small ruminants : epidemiology, anthelmintic efficacy and the effect of wattle tannins.
(2010)Nematode parasites have become the biggest problem for small ruminant production in South Africa due to their resistance to the commercial anthelmintics. Notable, wattle tannin has been used as an alternative strategy for ... -
Gastrointestinal tract plasmablastic lymphoma in HIV infected adults: a histopathological audit.
(2020)Background: Plasmablastic lymphoma (PBL) is an aggressive B-cell lymphoma that is characterised by the expression of plasma cell antigens and loss of pan B-cell antigens. The neoplasm is extensively reported in the oral ... -
Gastroschisis in KwaZulu-Natal.
(2008)Gastroschisis is a full thickness abdominal wall defect, usually to the right of the umbilicus, through which a variable amount of viscera herniates, without a covering membrane. Newborns with gastroschisis present ... -
A gate-to-gate life cycle assessment of a pulp and paper mill in South Africa.
(2007)Life Cycle Assessment (LCA) is a tool for the evaluation of environmental impacts of a -
Gatekeeping: an obstacle to criminological research with Indian youth drug users in Chatsworth, KwaZulu-Natal.
(CRIMSA, 2015-03-10)Every research study has a story and this article tells the story of the researchers’ challenges in accessing participants for a study. Thus this article draws on the researchers’ experiences with gatekeeping dilemmas while ... -
A gauge into whether the child support grant (CSG) and the foster care grant (FCG) are serving their purpose to meet the basic needs of vulnerable children: a case study of Umbumbulu.
(2020)This study investigated the effectiveness of the Child Support Grant (CSG) and the Foster Care Grant (FCG) in South Africa. It explored whether the CSG and FCG are serving their purpose which is to meet the basic needs of ... -
Gaussian mixture model classifiers for detection and tracking in UAV video streams.
(2017)Manual visual surveillance systems are subject to a high degree of human-error and operator fatigue. The automation of such systems often employs detectors, trackers and classifiers as fundamental building blocks. Detection, ...