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Department of Electrical and Mining Engineering: Recent submissions

Now showing items 1-20 of 85

Implicit modelling of geometallurgical parameters for application in mine planning

Chauke, Tiyani (2023-03)

The objective of the thesis was two-fold: to investigate the potential of implicit modelling techniques for modelling geometallurgical parameters in mine planning and to generate synthetic geometallurgical data using ...
An Image Catalogue of Micron- and Sb-micron-Sized Constrictions Fabricated with the Femtosecond Laser and Created with the AFM

Umenne, Patrice (Springer, 2023-06-12)

In this article a series of constrictions in the micron and sub-micron range fabricated with the femtosecond laser on superconducting YBa2Cu3O7 thin films is scanned with an atomic force microscope (AFM). The AFM images ...
Natural language processing (NLP) for the decolonisation of low resourced african languages

Sumbwanyambe, Mbuyu (2023-07-21)
Modelling the mine production chain for improved performance

Mulenga, Francois (2023-07-19)
Developing a framework for the classification of strategic and critical minerals in South Africa

Pule, Dikgwatlhe Israel (2022-12)

Minerals should be sufficient to sustain security of the nation as well as growth of the economy and employment. Countries without minerals may source minerals from mineral-rich countries. South Africa is endowed with ...
Developing a framework for the classification of strategic and critical minerals in South Africa

Dikgwatlhe, Israel Pule (2022-12)

Minerals should be sufficient to sustain security of the nation as well as growth of the economy and employment. Countries without minerals may source minerals from mineral-rich countries. South Africa is endowed with ...
Preventing cryptographic attacks used on the Internet of Things

Muthavhine, Khumbelo Difference (2022-05)

Cryptographic attacks on Internet of Things (IoT) devices are not highly con sidered by the users of IoT. Most cryptographic algorithms commonly used on IoT devices are vulnerable to cryptographic attacks. Cryptography ...
Incorporation of basaltic aggregates from the Sibasa formation in shotcrete for potential use as support in underground mining

Mudau, Vhuhwavho Pertunia (2022-11)

The use of crushed basalt aggregates as an alternative to sand aggregates is gaining momentum. This is driven by efforts of ensuring sustainable developments in shotcrete production. The main objective of this study ...
The characterization of the electric double layer capacitor (EDLC) and its application in micro grids using the hybrid energy storage system (HESS)

Tshiani, Chrispin, Tumba (2022-08)

Electrical energy storage is very important. Energy storage devices such as batteries and capacitors can be used to store energy. In this dissertation we investigate the use of a supercapacitor or electric double-layer ...
The Impact of the Electric Double-Layer Capacitor (EDLC) in Reducing Stress and Improving Battery Lifespan in a Hybrid Energy Storage System (HESS) System

Tshiani , Chrispin ; Umenne, Patrice (MDPI, 2022-11-18)

This paper investigates the effect of the electric double layer capacitor (EDLC) in reducing stress and prolonging the battery lifespan in a hybrid energy storage system (HESS). A 65 F, 16.2 V EDLC supercapacitor was ...
Synthesis of eco-friendly ZnO-based heterophotocatalysts with enhanced properties under visible light in the degradation of organic pollutants

Batchamen Mougnol, Jean B.; Waanders, Frans; Ntwampe, Seteno K. O.; Fosso-Kankeu, Elvis; Al Alili, Ali R. (2022-11-20)

Abstract Heterogeneous photocatalysts have been widely used for the removal of various organic pollutants from wastewater. The main challenge so far resides in the sustainability of the process, with regard ...
Face recognition using improved deep learning neural network

Nante, Zukisa Emerson (2022-09)

In recent years the importance and need for computer vision systems increased due to security demands, self-driving cars, cell phone logins, forensic identification, banks, etc. In security, the idea is to distinguish ...
Modelling the IEC 61850 and DNP3 Protocol Using OPNET in an Electrical Substation Communication Network

Dion Njova; Kingsley Ogudo; Patrice Umenne (IEEE, 2022-08-23)

Communication protocols are a composite of supervisory control and data acquisition (SCADA) and they are used by the devices connected on the SCADA network. In this paper the distributed network protocol (DNP3) and ...
The Impact of Virtual Learning Environments on the Practical Skills of Open Distance Learning Students in Electrical Engineering

Sidwell Hlalele; Patrice Umenne (IEEE, 2022-08-23)

Open distance learning (ODL) education has been developing rapidly in South Africa. The main reason behind the growth is the demand for online studies created due to the corona pandemic. The ODL system involves study that ...
The Impact of Virtual Learning Environments on the Practical Skills of Open Distance Learning Students in Electrical Engineering

Sidwell Hlalele; Patrice Umenne (IEEE, 2022-08-23)

Open distance learning (ODL) education has been developing rapidly in South Africa. The main reason behind the growth is the demand for online studies created due to the corona pandemic. The ODL system involves study that ...
Utilasation of locomotive for mid-term energy storage

Nqodi, Andile (2020-12)

The idea of a mid-term energy storage system (ESS) is becoming a popular option for improving the performance of energy conservation, power efficiency and the power grid. The goal of this research is to explore the ...
Adaptive scheme for improvement of load factor of water heater loads in residential buildings

Nonyane, Phillemon (2022-03)

The South African power utility, Eskom, and, in turn, the metropolitan and local municipalities, have difficulty meeting the country's growing demand for electricity. In this study, electric water heaters have been ...
The Characterization of the Electric Double-Layer Capacitor (EDLC) Using Python/MATLAB/Simulink (PMS)-Hybrid Model

Chrispin Tumba Tshiani; Patrice Umenne (MDPI, 2022-07-18)

This paper investigates the characterization of an electric double-layer capacitor (EDLC). In this study, the 300 F and 400 F EDLC supercapacitors are connected in a circuit in a laboratory experiment to produce their ...
Investigation and analysis of premature failure of valve regulated lead acid batteries

Mohale, Jan Moses (2021-01-29)

Over the past fifty years Valve Regulated Lead Acid (VRLA) battery has been deployed with Uninterruptable Power Supplies (UPS) backup systems as a last line of defense against primary power outages, due to its affordability ...
Assessment of wind power potential as a renewable energy source in Western Cape, South Africa

Tshibanda, Mbuyamba (2022)

The worldwide utilisation of renewable energy in electric power systems is growing rapidly due to concerns about the environment and the depletion of the sources of conventional power generation. The Weibull distribution ...

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