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Volume 33 Number 3 Year 2022

27 articles in this issue 

Teresa Hattingh

“You’re going to make a difference. A lot of times it won’t be huge, it won’t be visible even. But it will matter just the same. Don’t do it for praise or money, that’s what I want to tell you. Do it because it needs to be done. Do it to make your world b... see more

Pags. iii  

Refilwe Ngwaku,Janine Pascoe,Wiehan Pelser,Jean van Laar

Fuel prices in South Africa are variable and steadily rising. Diesel accounts for a large portion of operational expenditures in open-cast mining, placing pressure on fleet managers to address fuel theft and wastage. Raw data is often obtained in a variet... see more

Pags. 1 - 14  

Martin du Plessis,Joubert van Eeden,ME Botha

The Global Logistics Emissions Council (GLEC) framework developed logistics emission factors to be used uniformly in North America and Europe. It included an approximation for African countries; however, actual South African emissions were not accurately ... see more

Pags. 15 - 28  

Didier Nyembwe,Jonathan Kabasele

After usage, foundry chromite sand is recycled to reduce production costs and comply with environmental regulations. Thermal and mechanical reclamation are the most prominent methods of sand recycling. The sand reclamation techniques used in the foundry s... see more

Pags. 29 - 39  

Hendri Horden,Chanel Bisset

Promotions are a powerful tool at retailers’ disposal, but they are often underutilised. This happens when retailers select a suboptimal mix and pricing of vendor items to place on promotion. In this study, a mathematical optimisation model is developed t... see more

Pags. 40 - 54  

Arno van der Merwe,Andries Gous,Corne Schutte

Inefficient compressed air systems in deep-level mines deteriorate energy performance and increase operational costs. Leaks, wastages, and misuse are common inefficiencies that necessitate an oversupply of compressed air. It is therefore important to iden... see more

Pags. 55 - 68  

Prenisha Govender,Mendon Dewa

Continuous process improvement is critical for organisations to stay in business. An automotive component manufacturer faced productivity challenges after the launch of a new hybrid C-SUV automobile in South Africa. This paper aims to improve the seat cov... see more

Pags. 69 - 82  

Simon Rautenbach,Imke de Kock,Jacomien Grobler

Small and medium-sized enterprises (SMEs) are faced with the challenge of implementing Industry 4.0 (I4.0) technologies to keep up with larger industry players, and to pave the way for sustainable business development and digital transformation. Data scie... see more

Pags. 83 - 95  

Martin Lekarapa,Schalk Grobbelaar

Heritage buildings have evolved into development catalysts that, when properly maintained, can improve their surrounding area’s liveability while sustaining productivity in an ever-changing global context. Unfortunately, the high uncertainty involved in p... see more

Pags. 96 - 108  

U van Gruting,Corne Schutte,WA Pelser,Jean van Laar

As part of mining development, mines are constantly increasing in size and depth, resulting in a dynamic environment. There is often a recurring shortfall in ventilation adequacy in these mines, as mine planning and design are primarily driven by producti... see more

Pags. 109 - 123  

Reginal Wagner,Teresa Hattingh,Hanneke Meijer

The application of Lean in healthcare has been steadily climbing since 2000. However, Lean implementation in healthcare environments has experienced high failure rates that could be attributed to a lack of sustainable implementation. A knowledge gap has t... see more

Pags. 124 - 136  

Bronwyn Swartz,Shalini Singh

This study presents a comparative literature examination of the pharmaceutical industry in Japan, Europe, and the United States, focusing on quality culture, which historically has impacted operations in these regions. It aims to highlight generic pitfall... see more

Pags. 137 - 149  

Minette van Zyl,Joubert van Eeden

Two major problems challenge the world of food today: the constantly growing demand for meat products and dealing with the volumes of waste produced by the industry. The volume of slaughterhouse derivatives produced when generating meat products threatens... see more

Pags. 150 - 168  

Steven Zulu,Marthinus Pretorius,Elma van der Lingen

With the advent of the Fourth Industrial Revolution (4IR), many industries find themselves having to identify, select, acquire, exploit, and protect their 4IR technologies. However, 4IR technologies are unique when compared with those of the preceding ind... see more

Pags. 169 - 189  

Uttam Pancha,Oludolapo Olanrewaju,Mendon Dewa

The current environment of changing market trends drives the manufacturing industry to strive for efficient manufacturing technologies. A mould manufacturer was using traditional manufacturing approaches to fabricate injection moulds. The traditional appr... see more

Pags. 190 - 203  

Rudolf Jacobs,Jean van Laar,Corne Schutte

Deep-level mines have complex and dynamic ventilation systems to ensure that sufficient air is provided to underground workers. Certain changes to the ventilation systems are continually implemented to enable the deepening of these mines. The three main h... see more

Pags. 204 - 217  

Rudolph Bisschoff,Schalk Grobbelaar

The ability of organisations to collect and store vast amounts of data has become increasingly more accessible and affordable in recent decades thanks to the advancement of Industry 4.0. This ability is an enabler of data-driven decision-making (DDDM). Ho... see more

Pags. 218 - 232  

Gregory Jones,Sugandren Naidoo

All business involves assuming and managing risk, and this is particularly true of businesses involved in the staging and management of events, which are inherently risky endeavours. Event management is thus intrinsically concerned with managing various f... see more

Pags. 233 - 247  

CA Monteiro,Jean van Laar,Corne Schutte

Adequate water distribution in mines is crucial for both cooling and production. As deep-level mines become deeper, the water requirements, and the subsequent dewatering requirements, also increase. Numerous studies on mine dewatering planning exist; howe... see more

Pags. 248 - 261  

Rudolph Oosthuizen,Dumisani Manzini

The digital economy has radically changed the way services and products are developed and deployed. Digital information and communication technology connects increasing numbers of people, organisations, and other systems. The interconnectedness of service... see more

Pags. 262 - 273  

John Ellard,Ntsoaki Mathabathe,Charles Siyasiya,Sylvester Bolokang

In the quest for cost-effective fabrication processes capable of producing sound gamma-TiAl products, the microstructure and mechanical properties of a modified second-generation hot-rolled gamma-TiAl-based alloy with nominal composition Ti-48Al-2Nb-0.7Cr... see more

Pags. 274 - 283  

Mordecai Mashamaite,Phuti Ngoepe,Hasani Chauke

Titanium-Platinum (TiPt) has a martensitic transformation of about 1300 K, making it potential material for use as a high-temperature shape memory alloy. A third element is expected to improve the properties of TiPt alloys for future use in the aerospace ... see more

Pags. 284 - 289  

Tshenolo Phinah Leso,Charles Siyasia,Roelf Mostert,Joseph Moema

A train experiences different slip ratios at the wheel/rail contact point as it moves along the rail track, which influences the rolling contact fatigue (RCF) and wear properties of wheel and rail materials. This variation in slip ratios is caused by a ch... see more

Pags. 290 - 298  

Munashe Ignatius Chibinyani,Thywill Dzogbewu,Maina Maringa,Amos Muiruri

Combined numerical modelling and topology optimisation methods are useful in the design and analysis of engineering structures. The two tools are used to predict and optimise the mechanical properties of structures. Numerical modelling and optimisation of... see more

Pags. 299 - 317  

Noluntu Muchavi,Lerato Ranganya,Ronald maChaka,Glenda Motsi,Elizabeth Makhatha

Metastable ß-Ti alloys intended for orthopaedic implants typically possess undesirable a', a?, ? precipitates, which increase the elastic modulus. Non-toxic Sn was reported as an effective suppressor of a', a? and ? precipitates. Furthermore, increasing S... see more

Pags. 318 - 325  

Accolade Motlhabane,Didier Nyembwe,Malan van Tonder

Metal casting manufacturers are increasingly adopting three-dimensional printing in their workflows as a way to remain competitive. Despite all the innovative development, strict environmental regulations and the intrinsic value of sand still make the rec... see more

Pags. 326 - 338  

Maje Phasha,Marandela Mulaudzi,Heinrich Moller

This work presents the structural stability and mechanical properties of ordered face-centred cubic (FCC) Ni-Cr binary and ternary alloys. The effects of alloying on these properties have been evaluated using the first principles density functional theory... see more

Pags. 339 - 346