Browsing Faculty of Engineering by Title
Now showing items 190-209 of 1122
-
Condition monitoring thermal properties of a 20A hydraulic-magnetic MCB
(NWU, 2018)Heat is one of the major causes of degradation which can cause a reduction in performance, reliability and life span of miniature circuit breakers (MCBs) [1]. In order to diagnose the condition of electrical equipment, ... -
Consequences of Deploying culturally inclined earcons in speech technology design for oral users in South Africa
(3rd ACM Symp. on Computing for Development, 2013)We discuss the qualitative outcomes of utilizing an earcon in the design of an Interactive Voice Response (IVR) system. Earcons are short non-speech audio messages that are used in the computer/user interface (UI) to provide ... -
Conservation of scattered energy and asymmetry factor in the new Rotationally Symmetric Spherical Discretisation scheme
(Elsevier, 2016)A Rotationally Symmetric Spherical Discretisation (RSSD) technique has recently been developed for the discretisation of scattering phase functions in the Discrete Ordinates Method (DOM) in a consistent and rational manner. ... -
Constructing sub-word units for spoken term detection
(Acoustics, Speech and Signal Processing (ICASSP), 2017)Spoken term detection, especially of out-of-vocabulary (OOV) keywords, benefits from the use of sub-word systems. We experiment with different language-independent approaches to sub-word unit generation, generating both ... -
Contact sorption: a method to reduce the moisture content of coal fines
(Taylor & Francis, 2020)This paper introduces contact sorption with ceramic sorbents as a method to reduce the moisture content of coal fines produced by coal processing plants. The proposed method was tested on laboratory scale where ceramic ... -
The continuous depolymerization of filled polytetrafluoroethylene with a continuous process
(Wiley, 2008)A new method for beneficiating unfilled as well as filled polytetrafluoroethylene (PTFE) waste has been developed. This process does not use any carrier gas while forming the depolymerization products. It enables polymer ... -
Continuous event-based harmonic impedance assessment using online measurements
(IEEE, 2016)The quantification of harmonic emission requires an accurate model of the network harmonic impedances. A number of techniques have been proposed for the assessment of the network harmonic impedances to be practical and ... -
Continuous harmonic impedance assessment using online measurements
(IEEE, 2015)The quantification of harmonic emission requires an accurate representation of the network harmonic impedances. A number of techniques have been proposed to make the assessment of the network harmonic impedances practical ... -
Continuous machine learning for abnormality identification to aid condition-based maintenance in nuclear power plant
(Elsevier, 2018)A condition-based maintenance (CBM) regime in a nuclear plant will result in eliminating unnecessary maintenance cost without jeopardizing the safety of the plant. The foundation of a good CBM regime is an accurate and ... -
A control algorithm approach for optimizing energy resources through power generation for a South African steel works plant
(SAIIE, 2014)Numerous engineering plants have varieties of processes, where individual process flows are dependent on previous processes and operated by default or manual settings. Initial raw material feeds may fluctuate over time, ... -
A control approach investigation of the Xe-100 plant to perform load following within the operational range of 100 - 25 - 100%
(Elsevier, 2018)This paper describes the Xe-100 plant load following analyses done in Flownex® thermal-fluid system simulation software for normal operation from 100 – 25 – 100% electrical power. The plant model encompasses all major ... -
Control of magnetically suspended rotor combined with motor drive system
(IFAC, 2014)This paper presents the cooperative control between the active magnetic bearing system and the permanent magnet synchronous drive. More specifically, the coupling between the vibration control and sensorless drive control ... -
Controlling the electronic and optical properties of HfS2 mono-layers via lanthanide substitutional doping: a DFT plus U study
(RSC, 2020)Two dimensional HfS2 is a material with potential applications in the field of photo-catalysis and advanced solid state devices. Density functional theory with the Hubbard U parameter (DFT+U) calculations were carried out ... -
Conversion of calcium sulphide to calcium carbonate during the process of recovery of elemental sulphur from gypsum waste
(Elsevier, 2014)The production of elemental sulphur and calcium carbonate (CaCO3) from gypsum waste can be achieved by thermally reducing the waste into calcium sulphide (CaS), which is then subjected to a direct aqueous carbonation step ... -
Cooperative pair problem solving: a strategy for problem solving tutorials in the engineering sciences
(Tempus Publications, 2015)Engineering science courses, such as Thermodynamics, are often seen as difficult, and students have difficulty understanding the concepts and solving the problems. In an effort to improve the situation, we developed a ... -
Copolymerization of ethyl acrylate onto guar gum for the adsorption of Mg(II) and Ca(II) ions
(Taylor & Francis, 2016)In the present study, the copolymerization of ethyl acrylate and guar gum was induced by microwave irradiation in the presence of catalytic amount of the initiator potassium persulfate (KPS). The maximum percentage conversion ... -
Correlating hardware fault detection information from distributed control systems to isolate and diagnose a fault in pressurised water reactors
(Elsevier, 2013)Early fault identification systems enable detecting and diagnosing early onset faults or fault causes which allow maintenance planning on the equipment showing signs of deterioration or failure. This includes valve and ... -
Correlation between rapid learnability and user preference in IVR systems for developing regions
(iIST-Africa, 2013)Access to information and communication is one of the most important needs in any population group. It is generally challenging for people in the developing world to access information because the tools and the technologies ... -
Corrosion testing of steel for production and injection well applications in a UCG process
(International Pittsburgh Coal Conference, 2016) -
CREAK descriptor evaluation for visual odometry
(IEEE, 2019)Each year, latest state of the art technologies and algorithms arise that claim and prove to-shine their predecessors. One such algorithm is the Colour-based Retina Key-point (CREAK) descriptor, which is based on the FAST ...