Browsing Engineering by Title
Now showing items 233-252 of 1403
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Data sufficiency analysis for automatic speech recognition
(North-West University, 2009)The languages spoken in developing countries are diverse and most are currently under-resourced from an automatic speech recognition (ASR) perspective. In South Africa alone, 10 of the 11 official languages belong to this ... -
A decision framework for automatic teller machine investment :an application to the Nigerian banking sector
(North-West University, 2008)The selection and adoption of an appropriate information technology projects is one of the most challenging business tasks of the last decade. IT projects often record the largest capital expenditure for most service ... -
A decision model to support theatre allocation for non-elective patients in a private hospital
(North-West University (South Africa), 2019)The unforeseen arrival of patients in need of non-elective surgeries may cause a thoroughly planned operating theatre schedule to change with each arrival. This may have an influence on efficiency, utilization and waiting ... -
A decision support system for selecting IT audit areas using a capital budgeting approach
(2015)Internal audit departments strive to control risk within an organization. To do this they choose specific audit areas to include in an audit plan. In order to select areas, they usually focus on those areas with the highest ... -
A decision support system, using data envelopment analysis, to evaluate the efficiency of schools in the North West Province of South Africa
(North-West University (South Africa) , Potchefstroom Campus, 2015)The South African school system is governed by the South African School Act 84 of 1996. Despite sufficient laws and regulations and what seems sufficient to be a proper school management system, there is a major and ongoing ... -
A decomposition approach to solving core network design problems
(North-West University, 2018)Traditionally, when automated planning is used, network planners solve multilayer core network problems in a top-down manner, solving capacities for the top-most layer, and then using these solved capacities to solve the ... -
Decomposition of complex two-dimensional shapes into simple convex shapes
(North-West University (South Africa), 2019)Decomposing a complex shape into visually significant parts comes naturally for humans, and turns out to be very useful in areas such as shape analysis, shape matching, recognition, topology extraction, collision detection ... -
Deep burn strategy for the optimized incineration of reactor waste plutonium in pebble bed high temperature gas–cooled reactors
(North-West University, 2012)In this thesis advanced fuel cycles for the incineration, i.e. deep–burn, of weapons–grade plutonium, reactor–grade plutonium from pressurised light water reactors and reactor–grade plutonium + the associated Minor Actinides ... -
Deep neural networks for prediction of solar flares
(North-West University (South Africa), 2021)Solar flares are enormous explosions on the solar surface that originates from sunspots, which could cause damage to satellites, power grids and radio communication systems. Having early-warning systems that could accurately ... -
Degradation of polycyclic aromatic hydrocarbons from coal tar aqueous solutions using photo-biocatalysts
(North-West University (South Africa)., 2023)Polycyclic aromatic hydrocarbons (PAHs) are amongst the most predominant pollutants that are currently released into the environment. Despite the myriad of environmental regulations enforced by governments in countries ... -
Dehydrogenation of perhydrodibenzyltoluene for hydrogen production: the effect of Mg and Zn dopants on the catalytic activity of Pt/Al₂O₃
(North-West University (South Africa)., 2022)Liquid organic hydrogen carriers (LOHC) are hydrocarbon molecules that have the capacity to store and release hydrogen through catalytic hydrogenation and dehydrogenation reactions. The dibenzyltoluene/perhydrodibenzyltoluene ... -
Delay modelling and synchronisation of telecontrol networks
(North-West University, 2004)Eskom, South A6ica's largest supplier of electricity, uses a vast telecommunication network to control and monitor all operations in remote locations such as substations. As Eskom expanded the electricity network across ... -
Delevitation modelling of an active magnetic bearing supported rotor
(2014)The problem addressed in this thesis is the delevitation modelling of an active magnetic bearing (AMB) supported rotor. A system model needs to be developed that models the highly non-linear interaction of the rotor with ... -
Demand side management intervention on a large scale canal pumping scheme
(North-West University (South Africa) , Potchefstroom Campus, 2015)South Africa is the thirtieth driest country in the world and is classified as a semi-arid area. The annual rainfall differs from less than 200 mm at the west coast to more than 1000 mm on the east coast. The primary use ... -
Demand side management on an intricate multi-shaft pumping system from a single point of control
(North-West University, 2007)Eskom, the sole supplier of electricity in South Africa is facing an energy crisis. This is due to the steady increase in demand for electricity in South Africa. Low electricity prices in South Africa have helped the ... -
Demand side management opportunities for a typical South African cement plant
(North-West University, 2010)The South African electrical system is under threat of supply shortage. This is because, in the last decade, the maximum electrical demand has been encroaching on the net maximum capacity and the reserve storage margin has ... -
A demand side management study model for an on–off heap leach pad
(North-West University, 2011)In today’s world it is imperative to understand that the power demand of industrial and mining operations should be as economical as possible. This is especially necessary with the inevitable depletion of our natural ... -
Demand-side energy management of a cascade mine surface refrigeration system
(North-West University, 2007)The investigations focus on load shifting, load clipping and energy efficiency through control strategies. Load shifting is achieved by increasing the amount of work done in the Eskom non-peak period. This then results in ... -
Density effects resulting from polymer bonded explosives pressing parameters
(North-West University (South Africa), 2020)Shaped charges are used when a focused force is required to penetrate a target. They have dominated the weaponry market in the recent past due to their ability to penetrate targets. Shaped charges have become more potent ... -
Deployment, re-engineering and risk analysis of a C-band weather radar to build local capacity in South Africa
(North-West University (South Africa) , Potchefstroom Campus, 2017)A weather radar is an unparalleled tool, providing high spatio-temporal data over large areas to study storms and precipitation. The national weather radar network of South Africa is a world-class asset with enormous ...