Author:Khanyile, AT; Andrew, Jerome E; Paul, V; Sithole, Bishop BDate:May 2022The Box-Behnken experimental design technique investigated a comparative study of supercritical fluid extraction (SFE) and accelerated solvent extraction (ASE) of lipophilic compounds from pinewood sawdust. A response surface methodology was ...Read more
Author:Olakanmi, EO; Hoosain, Shaik E; Lawal, SA; Pityana, Sisa LDate:Mar 2023It is critical that coating’s microstructural characteristics are designed to meet its wear-resistance functional requirement. To the best of our knowledge, no study had related carbide dissolution ratio (CDR) in laser deposited Inconel 625 ...Read more
Author:Rossouw, R; Maritz, JohanDate:Dec 2023South Africa’s historical reliance on mineral resources has established thriving towns and settlements, sustaining households for decades. However, the decline in demand for these resources and mine closures pose significant threats to the ...Read more
Author:Bello-Salau, H; Onumanyi, Adeiza J; Adebiyi, RF; Adekale, AD; Bello, RS; Ajayi, ODate:Oct 2023Road infrastructure is essential to national security and growth. Potholes on the road sur- face causes accidents and costly automotive damage. Novel technology that detects potholes and alerts drivers in real time may address this challenge. ...Read more
Author:Alabi, S; Popoola, API; Popoola, OM; Mathe, Ntombizodwa R; Abdulwahab, MDate:Feb 2023Energy is a requisite factor for technological advancement and the economic development of any society. Currently, global energy demand and supply largel rely on fossil fuels. The use of fossil fuels as a source of energy has caused severe ...Read more
Author:Sibisi, TH; Shongwe, MB; Tshabalala, Lerato C; Mathoho, IpfiDate:Aug 2023A cutting-edge manufacturing technology that uses powder or wire as the feeding material and a high-energy heating source is known as metal additive manufacturing (AM). High-performance components for automotive, aerospace, medical, and energy ...Read more
Author:Zheng, Haitao; Mathe, MkhuluDate:Sep 2023Ultrasonic cavitation is a phenomenon that occurs when high-frequency sound waves are introduced into a liquid medium, causing the formation and collapse of small bubbles within the liquid. These bubbles generate high-energy shock waves that ...Read more
Author:Zheng, Haitao; Modibedi, MmalewaneDate:Sep 2023In this study, the thermal electrooxidation of methanol on a Pt/MWCNT catalyst was examined in alkaline media across the temperature range of 298-363 K. The investigation utilized cyclic voltammetry (CV), quasi-state polarization, and ...Read more
Author:Goncalves, Duarte PDDate:Nov 2023South Africa's infrastructure faces a barrage of security attacks that has led to the promulgation of the Critical Infrastructure Protection Act (CIPA) No. 8 of 2019. Residual risk (i.e. after the threats have been mitigated) must be assessed ...Read more
Author:Karsten, Carike; Bean, WL; Van Heerden, QuentinDate:Feb 2023There is a lack of dynamic facility location models for developing countries that consider the changes in the problem environment over time, such as patient population and population migration. Therefore, this paper focuses on using optimization ...Read more
Author:Agbakoba, Victor C; Hlangothi, P; Andrew, Jerome E; Mathew, Maya JDate:Sep 2022There is a growing need for diversified material feedstock for 3D printing technologies such as fused deposition modelling (FDM) techniques. This has resulted in an increased drive in the research and development of eco-friendly biopolymer-based ...Read more
Author:Lekoadi, Paul M; Tlotleng, Monnamme; Siyasiya, CW; Masina, Bathusile NDate:May 2023This work presents the microstructural investigation of an in situ synthesized TiB/Ti6Al4V-ELI composite that was manufactured with additive manufacturing (AM) technique known as laser metal deposition (LMD). A single-track sample was ...Read more
Author:Kleebauer, M; Marz, Christopher A; Reudenbach, C; Braun, MDate:Dec 2023In the realm of solar photovoltaic system image segmentation, existing deep learning networks focus almost exclusively on single image sources both in terms of sensors used and image resolution. This often prevents the wide deployment of such ...Read more
Author:Kemp, Lana; Matchett, R; Roux, Michael P; De Klerk, LDate:Jul 2023Principal bridge inspections for strategic bridges require an Under-bridge Inspection Unit (UBIU). Strategic bridges have restricted access due to the height and size of the structures or when the structure is located over a perennial river. ...Read more
Author:Adedeji, KB; Abu-Mahfouz, Adnan MI; Kurien, AMDate:Jul 2023In recent times, distributed denial of service (DDoS) has been one of the most prevalent security threats in internet-enabled networks, with many internet of things (IoT) devices having been exploited to carry out attacks. Due to their inherent ...Read more
Author:Rust, FC; Sampson, LR; Cachia, AA; Verhaeghe, Benott MJ; Fourie, HS; Smit, Michelle ADate:Nov 2023Background: In view of limited funding, research and development (R&D) investment needs to be optimised for future impact. Road transport R&D is complex and vary from road materials, design and traffic control to safety. Objectives: Future ...Read more
Author:Booysen, TN; Jamiru, T; Adegbola, T; Arthur, Nana KKDate:Nov 2023Three-dimensional printing (3D), also known as metal additive manufacturing (MAM), fabricates parts or components from different feedstocks: wires, powders or sheets. This process differs from traditional manufacturing techniques such as ...Read more
Author:Sibolla, Bolelang H; Molapo, Nkadimeng R; Vhengani, Lufuno M; Mdakane, Lizwe WDate:Sep 2023The GMES and Africa, MarCOSIO project, promotes the sustainable management of marine resources, improves marine governance, and stimulates the growth of the blue economy in the Southern African and Indian ocean region. Because of its mandate, ...Read more
Author:Roopchund, R; Andrew, Jerome E; Sithole, BDate:Apr 2023Various cellulose nanocrystals (CNC) production processes are not systematically reviewed. Therefore, there lacks a basis for future CNC process designs and optimizations. To solve this problem, the objective of this study was to perform a ...Read more
Author:Sibolla, Bolelang H; Van Zyl, T; Coetzee, SDate:Aug 2023A moving feature is described as a rigid body whose location changes over time (Asahara et al., 2015). Fitted with sensor devices, these features often transmit information about their location, coupled with additional attributes that describe ...Read more