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Now showing items 121-140 of 11257

Uncertainty in disaster risk management: A reflection on cyclone idai using the systems thinking approach

Author: Mutanga, Shingirirai S ; Lunga, W ; Mutanga, Shingirirai S Date: Jul 2021 The increasing frequency of disasters induced by anthropogenic and natural hazards has epitomised the complex nature of dealing with uncertainty. Cyclone Idai-induced floods in Southern Africa had a series of foreseeable and unforeseeable ... Read more
The effect of laser shock processing on the anti-corrosion performance of LENS-Fabricated Ti-6Al-4V alloy

Author: Arthur, Nana KK ; Kubjane, SM ; Popoola, API ; Masina, Bathusile N ; Pityana, Sisa L Date: May 2023 Titanium alloys are prone to increased oxidation rates when exposed to higher temperatures during application. As a result, the components suffer mechanical failure due to the formation of the alpha-case layer at 500 °C. To improve its corrosion ... Read more
Integrated framework for enhancing SDN security and reliability

Author: Isong, B ; Ratanang, T ; Gasela, N ; Abu-Mahfouz, Adnan MI Date: Nov 2023 This paper addresses the issues of fault tolerance (FT) and intrusion detection (ID) in the Software-defined networking (SDN) environment. We design an integrated model that combines the FT-Manager as an FT mechanism and an ID-Manager, as an ... Read more
Effect of heat treatment temperature on the microstructure and microhardness of TiC/Ti6Al4V composite manufactured with laser metal deposition

Author: Kgoahla, Reneilwe M ; Lekoadi, Paul M ; Masina, Bathusile N Date: Nov 2023 This study presented the investigation of the influence of post heat treatment temperature on the microstructure and hardness of TiC/Ti6Al4V composite manufactured with laser metal deposition. Heat treatment was performed to improve the ... Read more
Understanding diarrhoeal diseases in response to climate variability and drought in Cape Town, South Africa: A mixed methods approach

Author: Lee, TT ; Dalvie, MA ; Röösli, MS ; Merten, S ; Kwiatkowski, M ; Sweijd, Neville A ; Cissé, G ; Mahomed, H Date: Aug 2023 Background: The climate of southern Africa is expected to become hotter and drier with more frequent severe droughts and the incidence of diarrhoea to increase. From 2015 to 2018, Cape Town, South Africa, experienced a severe drought which ... Read more
Salient ingredients for direct water reclamation from treated municipal wastewater for potable reuse: Diepsloot Township case study

Author: Lufuno Nemadodzi, L ; Sikhwivhilu, K ; Jalama, K ; Moothi, K ; Bambo, M ; Mutanga, Shingirirai S ; Siame, J Date: May 2023 Across the world population growth, expansion of economic activities and climate change have become a concern for future water supply. To address the issue, many countries are investigating strategies to augment current water supplies. Water ... Read more
Machine learning – Imaging applications in transport systems: A review

Author: Adams, A ; Abu-Mahfouz, Adnan MI ; Hancke, GP Date: Nov 2023 Transport systems are fundamental to supporting economic growth, and the need for smarter, safer, more efficient and climate neutral transport systems continues to grow. Maintenance and operation of transport infrastructure is expensive and ... Read more
Towards a privacy compliance assessment toolkit

Author: Moabalobelo, Phindile T ; Ngobeni, Sipho J ; Molema, Bokang C ; Pantsi, Phumeza N ; Dlamini, Thandokuhle M ; Nelufule, Nthatheni Date: Jun 2023 The South African Protection of Personal Information (POPI) Act No.4 of 2013 makes it illegal to collect, use, process or store personal information unless it is done in accordance with the prescribed legal and regulatory clauses enriched in ... Read more
Defining the South African acute respiratory infectious disease season

Author: Motlogeloa, O ; Fitchett, JM ; Sweijd, Neville A Date: Jan 2023 The acute respiratory infectious disease season, or colloquially the “flu season”, is defined as the annually recurring period characterized by the prevalence of an outbreak of acute respiratory infectious diseases. It has been widely agreed ... Read more
Candida parapsilosis cell wall proteome characterization and effectiveness against hematogenously disseminated candidiasis in a murine model

Author: Gong, X ; Srivastava, V ; Naicker, Previn ; Khan, A ; Ahmad, A Date: Mar 2023 Candida parapsilosis poses huge treatment challenges in the clinical settings of South Africa, and often causes infections among immunocompromised patients and underweight neonates. Cell wall proteins have been known to play vital roles in ... Read more
Voyager, a ground mobile robotic platform for research development

Author: Purdon, Kyla ; Dickens, John S ; De Ronde, Willis ; Ramruthan, Kshir ; Crafford, Gerrie Date: Nov 2023 This paper describes a mobile ground-based robotic platform named Voyager which was developed to support robotics research and replace the old mobile robotic platform, the Pioneer. A comparative analysis was done with three mobile robot: ... Read more
Trust management framework for securing software-defined wireless sensor networks

Author: Isong, B ; Manuel, M ; Dladlu, N ; Abu-Mahfouz, Adnan MI Date: Nov 2023 The growing application of wireless sensor networks (WSN) has unveiled several opportunities for innovative services and data-driven applications. However, the WSN's inherent vulnerabilities and challenges have raised considerable concerns ... Read more
In living colour – South African aquatic scientists make a splash in biodiversity campaign

Author: Lain, Elisabeth J ; Smith, Marie E Date: Jan 2024 A new age of satellite remote sensing is upon us. High-tech sensors capable of imaging the earth at over 100 spectral wavebands are now a reality. These sensors, known as hyperspectral radiometers, capture very fine spectral features of the ... Read more
Investigation of TiB distribution characteristics on the microstructure of in situ TiB/Ti6Al4V-ELI manufactured by laser metal deposition

Author: Lekoadi, Paul M ; Tlotleng, Monnamme ; Siyasiya, Charles ; Masina, Bathusile N Date: Nov 2023 This study presents the investigation of TiB distribution characteristics on the microstructure of in-situ synthesized TiB/Ti6Al4V single-track composites manufacture with laser metal deposition. Ti6Al4V alloy was reinforced by adding TiB2 ... Read more
Efficacy of a plant-produced clade 2.3.4.4 H5 influenza virus-like particle vaccine in layer hens

Author: Abolnik, C ; O'Kennedy, Martha M ; Murphy, MA ; Wandrag, DBR Date: Jun 2022 Outbreaks caused by Goose/Guangdong H5 highly pathogenic avian influenza (HPAI)-lineage viruses continue to occur in unprecedented numbers throughout Eurasia, the Middle East and Africa, causing billions of dollars in economic losses and the ... Read more
Environmental challenges to meeting sustainable development goals in Southern Africa

Author: Mutanga, Shingirirai S ; Skhosana, Felix ; Mateyisi, Mohau ; Thenga, Humbelani F ; Naidoo, Sasha ; Ramoelo, A ; Nangombe, Shingirai S ; Lumsden, Trevor G Date: Jan 2024 There is an inextricable link between ecosystem integrity and the potential for achieving sustainable development goals (SDG). This chapter highlights key ecosystem threats and their drivers within the southern African regional context to ... Read more
Integrating project-based infrastructures with long-term greenhouse gas observations in Africa

Author: Bieri, M ; Du Toit, J ; Feig, G ; Maluta, NE ; Mantlana, Khanyisa B ; Mateyisi, Mohau J ; Midgley, GF ; Mutanga, Shingirirai S ; Von Maltitz, G ; Brümmer, C Date: May 2022 There is a lack of long-term greenhouse gas (GHG) measurement infrastructures in Africa. This limits our understanding of the temporal dynamics of the biosphere-atmosphere exchange of carbon in response to climate change. Where relevant ... Read more
Cradle-to-gate environmental life cycle assessment of limestone calcined clay cement (LC3)

Author: Dumani, Nozonke ; Mapiravana, Joseph Date: Jan 2024 The manufacturing of cement contributes to approximately 5-7% of global anthropogenic carbon dioxide emissions, necessitating the need for reducing the environmental impact. Limestone Calcined Clay Cement (LC3) has emerged as a promising ... Read more
Quantifying the environmental impacts of a sustainable concrete mix for a block paving system

Author: Dumani, Nozonke ; Mokoena, Refiloe ; Mgangira, Martin Date: Jan 2024 A sustainable concrete mix design, incorporating industrial by-products: fly ash and recycled plastic pellets, was developed, and optimized through laboratory performance-based testing trials. The primary objective of this investigation was ... Read more
Recommendations for sustainable post COVID-19 eLearning development in rural schools in South Africa

Author: Mthethwa, Siyabonga ; Nthatheni, Ronewa G ; Maremi, Keneilwe J ; Thulare, Tumiso Date: Dec 2023 Prior to the COVID-19 pandemic, many ICT initiatives were implemented in rural schools across the country to improve teaching and learning. This paper discusses the various factors that contributed to the failure to sustain ICT initiatives. ... Read more

Now showing items 121-140 of 11257

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