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Now showing items 21-30 of 258
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 ...
High pressure water supply strategy for mine bulk air coolers
(North-West University (South Africa)., 2022)
South African gold mines face many challenges with rising production costs being amongst the biggest concerns. Labour unrest and low economic growth along with increased production costs are affecting the productivity and ...
Simulation of the heat and coolant flow for a PMR200 reactor using a network approach in Flownex
(North-West University (South Africa)., 2022)
The VHTR (Very High-Temperature Reactor) Prismatic block reactor is one of the reactor designs considered in the range of 4th Generation Reactors which are under development today. The heat generated by the gas-cooled ...
Reducing energy consumption of a deep-level platinum mine dewatering system through infrastructure reconfiguration
(North-West University (South Africa)., 2022)
South Africa is the largest producer of platinum in the world, accounting for up to 80% of global production. The mining sector contributes significantly to the South African economy, but this contribution is hindered by ...
Efficacy of the inherent strain method for residual stress determination of additively manufactured IN718 selective laser melted specimens
(North-West University (South Africa)., 2022)
Selective laser melting (SLM) is an additive manufacturing (AM) technology that is able to produce metallic components of high complexity using hard to machine alloys such as Inconel 718 (IN718). Throughout the SLM process ...
The effect of cellobiohydrolase I on low consistency refining and handsheet properties
(North-West University (South Africa)., 2022)
Papermaking is an energy-intensive process, with mechanical pulp refining accounting for 30% of the total electrical energy consumption during papermaking. Presently, with significant economic and environmental concerns, ...
Development of a mobile application for metabolic syndrome screening
(North-West University (South Africa)., 2022)
This dissertation was created in pursuit of determining the viability of a smartphone
based technique for metabolic syndrome screening. This screening method consists of
two artificial neural networks. The first network ...
Domain adaptation for speaker diarisation in low-resource environments
(North-West University (South Africa)., 2022)
Speaker diarisation systems aim to answer the question \who spoke when?" and are useful
in providing valuable metadata to downstream applications, such as automatic speech
recognition systems. However, speaker diarisation ...
Engineering approach to highly-glycolytic cancer models and systems exploration of COVID-19 vascular complications
(North-West University (South Africa)., 2022)
In this thesis, engineering approaches are applied to two major medical research diseases,
namely cancer and coronavirus disease of 2019 (COVID-19).
The first approach (Part A) provides new preclinical cell culture (in ...
Comparison of titania and europium tellurium oxide semiconductors in the use of dye-sensitised solar cells
(North-West University (South Africa)., 2022)
Energy demand is increasing rapidly every year due to the technological growth occurring across the globe. Photovoltaics are among the preferred methods to answer this ever increasing energy demand. Although photovoltaics ...