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Now showing items 21-40 of 11257

On the zero-trust intranet certification problem

Author: Badenhorst, Danielle P ; Barbour, Graham D ; McDonald, André M ; Gertenbach, Wian P ; Buckinjohn, Ethan Date: Mar 2024 Securing corporate networks and ensuring the trustworthiness of network resources are critical security concerns for organisations in today's interconnected digital landscape. The zero-trust security model is an approach to designing and ... Read more
A review on waste wood reinforced polymer composites and their processing for construction materials

Author: Khoaele, Katleho K ; Gbadeyan, OJ ; Chunilall, Viren ; Sithole, B Date: May 2023 The necessity to utilise environmentally friendly resources has emerged due to environmental management. With the demand for the production of plastics and wood materials, pollution has increased. Consequently, the attraction in natural ... Read more
Impacts of the Covid-19 pandemic on the South African water sector

Author: Funke, Nikki ; De Wet, Audrey ; Mafunda, Ayanda ; Schaefer, Lisa M ; Le Roux, Wouter J Date: Apr 2024 An analysis of the impacts of the Covid-19 pandemic on the South African water sector is presented. The study identified and focused on three main themes: water revenue collection, water service delivery, and water sector operations. The ... Read more
Biogenic and lithogenic silicon along the GEOTRACES south West Indian Ocean section (SWINGS-GS02) and the islands mass effect on regional Si biogeochemical cycle

Author: Deteix, V ; Cotard, E ; Caquineau, S ; Landing, WM ; Planchon, F ; Ryan-Keogh, Thomas J ; Cardinal, D Date: Jun 2024 The distribution and cycling of biogenic silica (BSi) and lithogenic silicon (LSi) in the ocean play crucial roles in the global silicon cycle and marine ecosystem dynamics. This is especially the case in the Southern Ocean where diatoms ... Read more
Topic modelling of short texts in the health domain using LDA and bard

Author: Mbooi, Mahlatse S ; Rangata, Mapitsi R ; Sefara, Tshephisho J Date: Mar 2024 This paper proposes a model for the topic modelling of tweets in the health and mental health domain using the Latent Dirichlet Allocation (LDA) method. The data were obtained from the sentiment140 project. The data were prepared for topic ... Read more
Roundtable discussion: Integrating working with nature and nature-based solutions into long-term sustainable sediment management

Author: Magar, VS ; Suedel, B ; McQueen, A ; Sittoni, L ; Badmus, L ; Ballegooyen, R ; Weerts, Steven Date: Apr 2024 This presentation mentions the Working with Nature (WwN) programme, which is a framework to design new infrastructure or rehabilitate existing infrastructure in a way that works with natural processes. It also speaks to Engineering with Nature ... Read more
Preparation of cellulose nanocrystal (CNCs) reinforced polylactic acid (PLA) bionanocomposites filaments using biobased additives for 3D printing applications

Author: Agbakoba, Victor C ; Hlangothi, P ; Andrew, Jerome E ; Mathew, Maya J Date: Aug 2023 This work presents the experimental steps taken towards the preparation of 3D printable bionanocomposites using polylactic acid (PLA) biopolymer containing 0.1, 0.5 and 1 wt% CNCs. Optimized amounts of bio-based additives were added to improve ... Read more
Utilisation of a virtual honeynet to proactively secure the South African National Research and Education Network against cyberattacks

Author: Meyer, Heloise ; Barbour, Graham D ; McDonald, Andre M ; Badenhorst, Danielle P ; Gertenbach, Wian P Date: Jul 2024 South Africa is witnessing a significant increase in cyberattacks. Although such an increase in cyberattacks can be attributed to various factors, poor investment in cybersecurity technology and lack of awareness are causing South Africa to ... Read more
Biochar-derived anode materials for lithium-ion batteries: A review

Author: Seroka, Ntalane S ; Luo, Hongze ; Khotseng, L Date: Apr 2024 Highly portable nanoelectronics and large-scale electronics rely on lithium-ion batteries (LIBs) as the most reliable energy storage technology. This method is thought to be both environmentally friendly and cost-effective. We provide a study ... Read more
OpenAir interface for 4G core network and 4G/5G base stations

Author: Vilakazi, Mlamuli C ; Olwal, TO ; Mfupe, Luzango P ; Lysko, Albert A Date: Nov 2023 With the advent of the fourth industrial revolution (4IR), 5G networks are aiming to support a broad range of network services and applications. Network operators are looking to open-source implementations to expand on the flexibility and ... Read more
Vertical handover algorithm in OpenAirInterface and neural network for 4G and 5G base stations

Author: Vilakazi, Mla ; Olwal, TO ; Mfupe, Luzango P ; Lysko, Albert A Date: Jan 2024 The fifth generation (5G) mobile network has been designed to offer individuals and objects with nearly ubiquitous, ultra-high bandwidth, and low latency access. In heterogeneous wireless networks, the demand for wireless communication devices ... Read more
Assessing the effectiveness of 4IR strategy on South African township economy: Smart Township perspective

Author: Mathibe, Motshedisi ; Mochenje, Tonderai ; Masonta, Moshe T Date: Dec 2021 As the Coronavirus disease (COVID-19) pandemic changed how people and business interact, its impact severely impacted the global economy. The government imposed heavy lockdown regulations further damaged an already struggling informal sector ... Read more
Valorization of food waste into single-cell protein: An innovative technological strategy for sustainable protein production

Author: Sekoai, Patrick T ; Roets-Dlamini, Yrielle ; O’Brien, Frances F ; Ramchuran, Santosh O ; Chunilall, Viren Date: Jan 2024 The rapidly increasing population and climate change pose a great threat to our current food systems. Moreover, the high usage of animal-based and plant-based protein has its drawbacks, as these nutritional sources require many hectares of ... Read more
Fish species, families and guilds recorded in selected estuaries of Mozambique

Author: Whitfield, AK ; Weerts, Steven P Date: May 2024 This review documents the occurrence of fish species in a range of estuaries from Mozambique. Altogether 217 fish species were recorded, belonging to 77 families, and dominated in terms of species richness by Gobiidae, Carangidae and Mugilidae. ... Read more
5.9 - Modelling estuaries in data-poor environments

Author: Scharler, UM ; Gerber, G ; Taljaard, Susan ; Mackay, F Date: Mar 2024 Models are inherently data-hungry for the construction, calibration, validation and predictive capacity that is demanded of models. In data-poor environments, a severe challenge to modelling is the lack of historic data, and present lack of ... Read more
A narrative review of the therapeutic and remedial prospects of cannabidiol with emphasis on neurological and neuropsychiatric disorders

Author: Omotayo, OP ; Lemmer, Yolandy ; Mason, S Date: Mar 2024 The treatment of diverse diseases using plant-derived products is actively encouraged. In the past few years, cannabidiol (CBD) has emerged as a potent cannabis-derived drug capable of managing various debilitating neurological infections, ... Read more
Spectrum sensing and SINR estimation in IEEE 802.11s cognitive radio Ad Hoc networks with heterogeneous interference

Author: Zlobinsky, N ; Mishra, AK ; Lysko, Albert A Date: Mar 2024 This paper addresses spectrum sensing (SS) in a Cognitive Radio Ad Hoc Network (CRAHN). The interconnec tions of the nodes are formed on Dynamic Spectrum Access (DSA) channels, such as Television White Spaces (TVWS), so the CRAHN can suffer ... Read more
A homogeneity test for spatial line patterns

Author: Thiede, R ; Fabris-Rotelli, I ; Debba, Pravesh ; Cleghorn, CW Date: Mar 2024 Spatial linear networks exhibit a variety of patterns. Like spatial point patterns, they can be homogeneous or heterogeneous. Although there exist a wide variety of tests for the homogeneity of point patterns, no statistical tests currently ... Read more
Hydrogen production, storage, and transportation: Recent advances

Author: Rampai, MM ; Mtshali, CB ; Seroka, Ntalane S ; Khotseng, L Date: Feb 2024 One such technology is hydrogen-based which utilizes hydrogen to generate energy without emission of greenhouse gases. The advantage of such technology is the fact that the only by-product is water. Efficient storage is crucial for the practical ... Read more
Green and sustainable use of macadamia nuts as support material in Pt-based direct methanol fuel cells

Author: Mojapelo, NA ; Seroka, Ntalane S ; Khotseng, L Date: May 2024 The successful commercialization of direct methanol fuel cells (DMFCs) is hindered by inadequate methanol oxidation activity and anode catalyst longevity. Efficient and cost-effective electrode materials are imperative in the widespread use ... Read more

Now showing items 21-40 of 11257

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