Browsing Faculty of Engineering by Title
Now showing items 614-633 of 1129
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A laboratory scale fixed-bed coal conversion reactor. Part 1. Operation, reaction zone identification and industrial representativeness
(Elsevier, 2015)Fixed bed coal gasification and combustion operations form an important part in the global energy supply, and these processes are characterized by complex interactions which are difficult to study on an industrial scale. ... -
Landmine detection by means of ground penetrating radar: a model-based approach
(SAIEE, 2014)The presence of landmines poses a worldwide humanitarian problem. Often, these mines are difficult to detect with metal detectors. Ground penetrating radar (GPR) is a promising technology for the detection of landmines ... -
Landmine detection by means of ground penetrating radar: a rule-based approach
(SAIEE, 2014)For a humanitarian landmine detection system to be of practical value it has to meet the following criteria: detection must be performed in real-time from a moving platform; plastic mines must be reliably detected; and ... -
Language identification of individual words with joint sequence models
(Interspeech 2014, 2014)Within a multilingual automatic speech recognition (ASR) system, knowledge of the language of origin of unknown words can improve pronunciation modelling accuracy. This is of particular importance for ASR systems required ... -
Language Independent Search in MediaEval's Spoken Web Search Task
(Elsevier Ltd., 2014)In this paper, we describe several approaches to language-independent spoken term detection and compare their performanceon a common task, namely “Spoken Web Search”. The goal of this part of the MediaEval initiative is ... -
Large-scale design and testing of an improved fine coal dewatering system
(SAIMM, 2012)Fine coal (-500 μm) is notoriously difficult to dewater. It is not uncommon for a dewatered product to have a moisture content as high as 30 per cent after vacuum filtration. This poses several handling and financial ... -
Leaching kinetics of bottom ash waste as a source of calcium ions
(Taylor & Francis, 2015)Bottom ash is a waste material from coal-fired power plants, and it is known to contain elements that are potentially toxic at high concentration levels when disposed in landfills. This study investigates the use of bottom ... -
Leaching of rare earth elements from bentonite clay
(The Southern African Institute of Mining and Metallurgy, 2012)Due to increasing concerns of global rare earth element shortfalls in the near future, possible alternative sources of rare earth elements have recently become of economic interest. One such alternative is decanting ... -
Lean implementation strategies: how are the Toyota Way principles addressed?
(Stellenbosch Univ, 2016)Lean manufacturing is widely considered to be a proven organisational improvement philosophy, yet the success rate of lean implementation in industry remains relatively low. Neglect of the human aspect of lean manufacturing ... -
A life cycle model for the development of airborne electronic equipment
(Univ Stellenbosch, 2017)This paper describes a life cycle model for the development of electronic equipment for use on board military aircraft in the South African context. The life cycle model presented consolidates the activities of systems ... -
Liminal presence of exo-microbes inoculating coconut endosperm waste to enhance black soldier fly larval protein and lipid
(Springer, 2020)The anaerobic decomposition of coconut endosperm waste (CEW), residue derived from cooking, has been insidiously spewing greenhouse gasses. Thus, the bioconversion of CEW via in situ fermentation by exo-microbes from ... -
Linear model of a closed three-shaft Brayton cycle
(IEEE, 2004)A linear model of a closed three-shaft Brayton cycle is developed. The model is intended to give an understanding of the dominant dynamic behavior in a nuclear power system that utilizes a closed three-shaft Brayton cycle. ... -
Linear model of a closed three-shaft Brayton cycle
(SAIEEE, 2006)A linear model of a closed three-shaft Brayton cycle at normal power operation is developed. The model is intended to give an understanding of the dominant dynamic behaviour in a nuclear power system ... -
Liquefaction of South African bituminous coal using phenol as a solvent
(International Pittsburgh Coal Conference, 2016) -
Liquid biofuels from food waste: current trends, prospect and limitation
(Elsevier, 2016)Depletion of fossil fuels, environmental damage due to pollution and energy security have intensified research on alternative liquid biofuels. A major portion of municipal solid waste is food waste. Huge quantities of food ... -
Load-shifting opportunities for typical cement plants
(ERC (Energy Research Centre), 2013)Investigations into demand side reductions have been encouraged by the South African electricity utility, Eskom, in sectors with high electricity consumption, such as the cement industry. The South African cement ... -
Local benchmarking in mines to locate inefficient compressed air usage
(Elsevier, 2019)Compressed air is a vital source of energy for deep mines. It is therefore alarming that leaks, wastages, and losses are the highest contributing factors to the deterioration of compressed air network efficiency. However, ... -
A low cost circularly polarized microstrip patch antenna with low axial ratio for UHF RFID applications
(IAMOT, 2020)This paper presents a low cost circularly polarized microstrip patch antenna with low axial ratio (AR) and broad AR beam width for ultrahigh frequency (UHF) radio-frequency identification (RFID) applications. The ... -
Low cost hydrogen production by anion exchange membrane electrolysis: a review
(Elsevier, 2018)Anion exchange membrane (AEM) water electrolysis is a hydrogen production method that is achieved with an AEM, using electricity. One of the major advantages of AEM water electrolysis is the replacement of conventional ...
