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Browsing Journal Articles by Cluster "Defence and Security"

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Adding up the numbers: COVID-19 in South Africa

Author: Suliman, Ridhwaan ; Mtsweni, Jabu S Date: Jun 2022 The SARS-CoV-2 pandemic has wreaked havoc globally, with over half a billion people infected and millions of lives lost. The pandemic has also interrupted every aspect of our lives, with most governments imposing various interventions and ... Read more
Advancing cybersecurity capabilities for South African organisations through R&D

Author: Dawood, Zubeida C ; Mkuzangwe, Nenekazi NP Date: Mar 2022 There is a growth of cyber-attacks in South Africa. Seeing that there are over 38 million Internet users in South Africa, this is no surprise. The South African government has published the National Cybersecurity Policy Framework (NCPF) and ... Read more
An aerodynamic CFD analysis of inlet swirl in a micro-gas turbine combustor

Author: Meyers, Bronwyn C ; Grobler, Jan-Hendrik ; Snedden, GC Date: Jul 2023 A combustor was designed for a 200N micro-gas turbine [1, 2] using the NREC preliminary combustor design method [1, 2, 3]. During the design process, there are various aspects where there are no definitive methodologies for specifying the ... Read more
Apportioning human-induced and climate-induced land degradation: A Case of the Greater Sekhukhune District Municipality

Author: Kgaphola, Motsoko J ; Ramoelo, Abel ; Odindi, J ; Mwenge Kahinda, Jean-Marc ; Seetal, Ashwin R Date: Mar 2023 Land degradation (LD) is a global issue that affects sustainability and livelihoods of approximately 1.5 billion people, especially in arid/semi-arid regions. Hence, identifying and assessing LD and its driving forces (natural and anthropogenic) ... Read more
Assessment of homegarden agroforestry for sustainable land management intervention in a degraded landscape in South Africa

Author: Musvoto, Constansia D ; Kgaphola, Motsoko J ; Mwenge Kahinda, Jean-Marc Date: Dec 2021 Agroforestry-based sustainable land management (SLM) interventions provide opportunities for tackling land degradation and its associated socio-economic issues. Agroforestry is not a guaranteed SLM fix as every agroforestry practice is not ... Read more
Biaxial estimation of biomechanical constitutive parameters of passive porcine sclera soft tissue

Author: Ndlovu, Z ; Desai, D ; Pandelani, Thanyani A ; Ngwangwa, H ; Nemavhola, F Date: Feb 2022 This study assesses the modelling capabilities of four constitutive hyperelastic material models to fit the experimental data of the porcine sclera soft tissue. It further estimates the material parameters and discusses their applicability ... Read more
Biaxial estimation of biomechanical constitutive parameters of passive porcine sclera soft tissue

Author: Ndlovu, Z ; Desai, D ; Pandelani, Thanyani A ; Ngwangwa, H ; Nemavhola, F Date: Feb 2022 This study assesses the modelling capabilities of four constitutive hyperelastic material models to fit the experimental data of the porcine sclera soft tissue. It further estimates the material parameters and discusses their applicability ... Read more
Biometric recognition of infants using fingerprint, iris and ear biometrics

Author: Moolla, Yaseen ; De Kock, Antonie J ; Mabuza-Hocquet, Gugulethu P ; Ntshangase, Cynthia S ; Nelufule, Nthatheni ; Khanyile, Nontokozo P Date: Feb 2021 Biometric recognition is often used for adults for a variety of purposes where an individual’s identity must be ascertained. However, the biometric recognition of children is an unsolved challenge. Solving this challenge could protect children ... Read more
CACC: Context-aware congestion control approach for lightweight CoAP/UDP-based Internet of Things traffic

Author: Akpakwu, GA ; Hancke, GP ; Abu-Mahfouz, Adnan MI Date: Feb 2020 With the emerging applications of the Internet of Things (IoT), a congestion control mechanism becomes a critical phenomenon for efficient communication in networks of constrained devices. The Internet Engineering Task Force developed the ... Read more
Conceptual mapping of the cybersecurity culture to human factor domain framework

Author: Mwim, EN ; Mtsweni, Jabu S ; Chimbo, B Date: Mar 2023 Human related vulnerability challenges continue to increase as organisations intensify their use of interconnected technologies for operations particularly due to the emergence of COVID-19 pandemic. Notwithstanding the challenge of a human ... Read more
The cyber threat landscape in South Africa: A 10-year review

Author: Pieterse, Heloise Date: Dec 2021 The world is witnessing a rise in cyber-related incidents. As information technology improves and the reliance on technology increases, the frequency and severity of cyber incidents escalate. The impact is felt globally, and South Africa is ... Read more
Cyber threats focusing on Covid-19 outbreak

Author: Veerasamy, Namosha Date: Feb 2021 The outbreak of the novel corona virus or Covid-19 has sparked a wave of changes. Social-distancing and remote working meant that increasingly employees and individuals were reliant on Information Communication Technologies (ICT) to connect ... Read more
Cyber-threat information-sharing standards: A review of evaluation literature

Author: Mkuzangwe, Nenekazi N ; Dawood, Zubeida C Date: Jun 2020 Cyber-threat information-sharing tools, through which cybersecurity teams share threat information, are essential to combatting today's increasingly frequent and sophisticated cyber-attacks. Several cyber-threat information-sharing standards ... Read more
A cybersecurity architecture that supports effective incident response

Author: Mutemwa, Muyowa ; Mtsweni, Jabu S Date: Mar 2022 A Cybersecurity Operation Centre (SOC) is a centralized hub within an organisation that houses people, processes, and technologies aimed at continuous monitoring of the organization’s assets in order to prevent, detect, analyse, and respond ... Read more
Detecting wildfires using unmanned aerial vehicle with near infrared optical imaging sensor

Author: Magidimisha, Edwin ; Faniso-Mnyaka, Zimbini ; Naidoo, Seelenthren ; Nana, Muhammad A Date: Apr 2023 The severity of wildland vegetation fires is expected to grow in response to climate change. Therefore, the price of combating fires will likewise go up while still posing a serious risk to the firefighters. Various countries have invested ... Read more
Digital forensics supported by machine learning for the detection of online sexual predatory chats

Author: Ngejane, Hombakazi C ; Eloff, JHP ; Sefara, Tshephisho J ; Marivate, VN Date: Mar 2021 Chat-logs are informative digital footprints available on Social Media Platforms (SMPs). With the rise of cybercrimes targeting children, chat-logs can be used to discover and flag harmful behaviour for the attention of law enforcement units. ... Read more
Ethnomedicinal and phytochemical properties of sesquiterpene lactones from Dicoma (Asteraceae) and their anticancer pharmacological activities: A review

Author: Mangisa, Mandisa ; Peter, Xolani K ; Khosa, Mbokota ; Fouche, Gerda ; Nthambeleni, Rudzani ; Senabe, Jeremiah V ; Tarirai, C ; Tembu, VJ Date: Sep 2021 Dicoma species belonging to the Asteraceae family are commonly utilized as traditional medicine in Southern Africa. Dicoma anomala, Dicoma capensis, Dicoma schinzii and Dicoma zheyeri are the most common ethnomedicinal plant species used in ... Read more
Evaluating the enhancing potential of metal hydride in high explosives using a simulation approach

Author: Thungatha, Lamla ; Nyembe, Nobuhle C ; Mahlase, Andrew CK ; Ngcebesha, Pholisa ; Ncwane, Simphiwe E Date: May 2023 Modelling and simulation in energetic materials (EM) is a well-known field and it keeps on growing and improving. Being able to simulate the EM before doing synthesis or formulation in the laboratory is a safe route. By using the right ... Read more
The evolution of cyber threats in the South African context

Author: Veerasamy, Namosha Date: Mar 2022 A Cybersecurity Operation Centre (SOC) is a centralized hub within an organisation that houses people, processes, and technologies aimed at continuous monitoring of the organization’s assets in order to prevent, detect, analyse, and respond ... Read more
Factors associated with the cybersecurity culture: A quantitative study of public e-health hospitals in South Africa

Author: Mwim, EM ; Mtsweni, Jabu S ; Chimbo, B Date: Jul 2023 The healthcare sector has become a high target of cyber threats due to the nature of the industry and the potential of personal and confidential information. Human related factors have proven to be the major contributor to the challenges ... Read more

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