Author:Nabarro, FRNDate:2003The analysis of thermal activation under shear stress in three- and even two-dimensional models presents unresolved problems. The analysis of one-dimensional models presented here may illuminate the study of more realistic models. For the ...Read more
Author:Adeleye, AT; John, KI; Adeleye, PG; Akande, Amos A; Banjoko, OODate:Sep 2021One-dimensional (1D) titanate nanotubes materials (protonated titanate nanotube (HTNT) and sodium titanate nanotube (NaTNT)) have been reported as low-cost and efficient catalytic materials in chemical syntheses for the production of biofuel ...Read more
Author:Simo, A; Mwakikunga, Bonex W; Maaza, MDate:Jun 2015In relation to hydrogen (H2) economy in general and gas sensing in particular, an extensive set of one dimensional (1-D) nano-scaled oxide materials are being investigated as ideal candidates for potential gas sensing applications. This is ...Read more
Author:Wellington, Kevin W; Qwebani-Ogunleye, T; Kolesnikova, NI; Brady, D; De Koning, CBDate:Apr 2013A commercial laccase, Suberase® from Novozymes, was used to catalyse the synthesis of 5,6-dihydroxylated benzo[b]furans and catechol derivatives. The yields were, in some cases, similar to or better than that obtained by other enzymatic, ...Read more
Author:Kesavan Pillai, Sreejarani; Moloto, N; Ray, SSDate:Feb 2009The organization of metal or semiconductor nanoparticles like quantum dots (QDs) on carbon nanotubes (CNTs) is one good example motivated by the desire to combine the properties of two functional nanoscale materials to achieve a wider range ...Read more
Author:Landman, WA; DeWitt, D; Lotter, DDate:Sep 2010The predictability of South African summer rainfall is investigated using coupled ocean-atmosphere models.Read more
Author:Cornell, DH; Schutte, SS; Eglington, BLDate:Jul 1996The Ongeluk lavas form part of the Palaeoproterozoic Transvaal-Griqualand West supracrustal sequence of the Archaean Kaapvaal Craton of South Africa. They form a thick shallow-marine volcanic sequence of pillow lava, massive flows and ...Read more
Author:Musyoka, Nicholas M; Mutuma, BK; Manyala, NDate:Jul 2020High surface area activated carbons (ACs) were prepared from a hydrochar derived from waste onion peels. The resulting ACs had a unique graphene-like nanosheet morphology. The presence of N (0.7%) and O content (8.1%) in the OPAC-800 °C was ...Read more
Author:Van Niekerk, B; Damianou, A; Rosman, Benjamin SDate:Aug 2017Applying reinforcement learning to robotic systems poses a number of challenging problems. A key requirement is the ability to handle continuous state and action spaces while remaining within a limited time and resource budget. Additionally, ...Read more
Author:Heinecken, TJE; St J Damstra, KDate:Jul 1983In this report available historical information on Onrus estuary is presented. The lower reach of the Onrus River or Onrust River as it is also known, has a small fresh water lagoon at its mouth. The area was originally part of a farm. According ...Read more
Author:Dawood, Zubeida C; Keet, CMDate:Oct 2012It has been shown that using a foundational ontology for domain ontology development is beneficial in theory and practice. However, developers have difficulty with choosing the appropriate foundational ontology, and why. In order to solve ...Read more
Author:Chan, Ka Fai P; Theron, J; Van Heerden, Renier P; Leenen, LDate:Mar 2015In modern warfare it is no longer sufficient to only focus on physical attacks and counter-measures; the threat against cyber networks is becoming increasingly significant. Modern military forces have to provide counter measures against these ...Read more
Author:Keet, CM; Khan, MT; Ghidini, CDate:Nov 2014Generic, reusable ontology elements, such as a foundational ontology's categories and part-whole relations, are essential for good and interoperable knowledge representation. Ontology developers, which include domain experts and novices, face ...Read more
Author:Moodley, D; Seebregts, CJ; Pillay, AW; Meyer, TDate:Aug 2013eHealth governance and regulation are necessary in low resource African countries to ensure effective and equitable use of health information technology and to realize national eHealth goals such as interoperability, adoption of standards and ...Read more
Author:Jafta, Y; Leenen, L; Chan, Ka Fai PDate:Jun 2020The protection and management of data, and especially personal information, is becoming an issue of critical importance in both the business environment and in general society. Various institutions have justifiable reasons to gather the ...Read more
Author:Klarman, S; Britz, KDate:Aug 2015Data-driven elicitation of ontologies from structured data is a well-recognized knowledge acquisition bottleneck. The development of efficient techniques for (semi-)automating this task is therefore practically vital - yet, hindered by the ...Read more
Author:Dawood, Zubeida C; Van 't Wout, CDate:Oct 2022Although there is an increasing amount of information for counter-terrorism operations freely available online, it is a complex process to extract relevant information and to detect useful patterns in the data in order for intelligence ...Read more
Author:Ramorulane, DaveDate:Jun 2012Open Access (OA) refers to electronic scholarly articles, books, monographs and other grey literature that is freely available. Various electronic platforms limit access to their content due to subscription costs, firewalls, and other access ...Read more
Author:Arcia-Moret, A; Sathiaseelan, A; Zennaro, M; Rondón, F; Pietrosemoli, E; Johnson, DavidDate:Aug 2016TV White Spaces have recently been proposed as an alternative to alleviate the spectrum crunch, characterised by the need to reallocate frequency bands to accommodate the ever-growing demand for wireless communications. In this paper, we ...Read more