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Now showing items 31-40 of 196
Evaluation of coal char gasification kinetics and pore development in high pressure steam and carbon dioxide
(North-West University (South Africa), 2020)
Coal is utilised in the coal-to-liquid (CTL) process on a large scale in South Africa and significantly contributes to the country’s energy demand. In this conversion process, the primary step is the high pressure gasification ...
Development of a compact, passive helium purification system for the advanced high temperature reactor
(North-West University (South Africa), 2020)
In this study the possibility of a compact, passive membrane system to separate helium from the impurities that may be present in the AHTR primary system was investigated. The current helium purification systems that are ...
Improving the decoding efficiency of Matrix Network Coding
(North-West University (South Africa), 2020)
To reach the maximum flow capacity of a network, network coding can be used. There are various implementations of network coding. The most widely used method of network coding is Random Linear Network Coding (RLNC). RLNC, ...
Using energy balances to evaluate electricity savings projects on platinum mines
(North-West University (South Africa), 2020)
The platinum mine industry is under economic pressure due to decreased production and increased electricity prices. Implemented energy saving strategies and projects aim to reduce the electricity consumption, but this takes ...
Modelling and characterisation of a 3D printed peristaltic pump
(North-West University (South Africa), 2020)
Peristaltic pumps are positive displacement pumps that mechanically imitate the peristaltic process. The unique design and operation of the pumps allows it to have a wide range of applications, from blood pumps in heart-lung ...
Developing an artefact for raising social engineering awareness among administrative staff
(North-West University (South Africa), 2020)
Social engineering is one of the biggest cyber-security threats faced by organisations. Cyber-criminals no longer primarily aim to exploit information systems, but rather target the ‘low hanging fruit’, which is the human ...
Prevalence and virulence gene profiling of shigatoxigenic Escherichia coli 0157:H7 strains isolated from cattle
(North-West University (South Africa), 2020)
Escherichia coli and isolates belonging to serotypes O157 are Gram negative, rod shaped
bacteria that have received a lot of attention recently due to their potential to cause life
threatening sporadic incidents and ...
The ecology of chytrid lineages in southern Africa
(North-West University (South Africa), 2020)
The inter- and intraspecific diversity of microbial communities is known to be an important, but difficult to disentangle, factor in pathogen ecology. Conspecific or interspecific microbial interactions may result in ...
A gendered approach to climate smart agriculture adoption by smallholder farmers in Malawi and Zambia
(North-West University (South Africa), 2020)
The negative impacts of climate change on smallholder agrarian livelihoods in developing countries will be devastating, threatening to negate even the development gains made thus far, while offering opportunities for ...
Development of a biodegradable biopolymer from renewable natural resources suitable for additive manufacturing and bone tissue engineering
(North-West University (South Africa), 2020)
Bone tissue engineering scaffolds fabricated by additive manufacturing can offer an alternative treatment option to currently used bone graft methodologies. Chitosan, a biocompatible and biodegradable naturally derived ...