Author:Zlobinsky, N; Mishra, AK; Lysko, Albert ADate:Mar 2024This 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
Author:Thiede, R; Fabris-Rotelli, I; Debba, Pravesh; Cleghorn, CWDate:Mar 2024Spatial 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
Author:Rampai, MM; Mtshali, CB; Seroka, Ntalane S; Khotseng, LDate:Feb 2024One 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
Author:Mojapelo, NA; Seroka, Ntalane S; Khotseng, LDate:May 2024The 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
Author:Simelane, Nontobeko P; Olatunji, OS; Mathew, Maya J; Andrew, Jerome EDate:Jun 2024Engineered transparent wood (ETW), derived from the modification of natural wood, presents a sustainable and aesthetically pleasing alternative to traditional glass. This review comprehensively explores the burgeoning field of ETW as a novel ...Read more
Author:Khoaele, Katleho K; Gbadeyan, Oluwatoyin J; Chunilall, Viren; Sithole, BDate:Mar 2023The devastating effect of plastic waste on the ecosystem due to the rapid increase in population has been a concern. Although stakeholders and governments invested in efforts to mitigate plastic waste, their exertions have limited to no effects ...Read more
Author:Lain, Elisabeth J; Kravitz, K; Matthews, M; Bernard, SDate:Jun 2023Paired measurements of phytoplankton absorption and backscatter, the inherent optical properties central to the interpretation of ocean colour remote sensing data, are notoriously rare. We present a dataset of Chlorophyll a (Chl a) -specific ...Read more
Author:Weerts, Steven P; Wehlitz, Carl-Peter FDate:May 2024The objects of the CSIR are, through directed and particularly multi-disciplinary research and technological innovation, to foster, in the national interest and in fields which in its opinion should receive preference, industrial and scientific ...Read more
Author:Ntshangase, Cynthia S; Ndlovu, Lungisani; Stofile, AkhonaDate:Jun 2023The use of biometrics to secure the identity of children is a continuous research worldwide. In the recent past, it has been realized that one of the promising biometrics is the shape of the ear, especially for children. This is be cause most ...Read more
Author:Nzengue, ACB; Khumbulani, Mpofu, K; Mathe, Ntombizodwa R; Muvunzi, RDate:Dec 2023Selective laser melting (SLM) SLM has gained interest in processing lightweight metals like aluminium alloys. The SLM processing remains challenging in finding the appropriate process parameters for the desired mechanical properties. Previous ...Read more
Author:Zandamela, Frank; Nicolls, F; Kunene, Dumisani C; Stoltz, George GDate:Dec 2023Deep learning has gained traction due to its supremacy in terms of accuracy and ability to automatically learn features from input data. The literature proposes various approaches to detect distracted drivers. The performance of these algorithms ...Read more
Author:Duan, C; Zou, F; Li, S; Zhu, Q; Li, J; Chen, H; Zhang, Z; Chen, C; Guo, H; Luo, HongzeDate:Apr 2024All-inorganic n-i-p perovskite solar cells (PSCs) using doped Spiro-OMeTAD as hole transport material (HTM) suffer from photothermal stability due to ionic diffusion and radical-induced degradation by the dopants. In this article, dopant-free ...Read more
Author:Gibberd, JeremyDate:Jul 2023Climate change has meant that many schools in hot and dry areas are increasingly experiencing water shortages. This can affect the health of students and teachers, disrupt education and in the worst case, lead to school closures. Rainwater ...Read more
Author:Snyman-van der Walt, LuanitaDate:Mar 2024Strategic Environmental Assessment (SEA) is applied to inform decisions on sustainable development but may be limited in its mechanisms for unlocking the potential spatial information, and facilitating actual and effective collaborative ...Read more
Author:Thomalla, Sandy J; Nicholson, Sarah-Anne; Ryan-Keogh, Thomas J; Smith, Marie EDate:Aug 2023Climate change is expected to elicit widespread alterations to nutrient and light supply, which interact to influence phytoplankton growth and their seasonal cycles. Using 25 years of satellite chlorophyll a data, we show that large regions ...Read more
Author:Mak, Franco; Govender, Avashna; Badenhorst, JacoDate:Feb 2024The majority of South Africa’s eleven languages are low-resourced, posing a major challenge to Automatic Speech Recognition (ASR) development. Modern ASR systems require an extensive amount of data that is extremely difficult to find for ...Read more