Author:Lavrov, A; Vervoort, A; Wevers, M; Napier, JALDate:Apr 2002Sensitivity of the Kaiser effect to the deviations of the directions of sigma(1)-principal stress experienced by rock in Successive loading cycles has an important impact on the application of this effect for stress measurements in rocks. The ...Read more
Author:Soare, A; Ball, H; Hayes, D; Zhen, X; Jarratt, MC; Sastrawan, J; Uys, H; Biercuk, MJDate:Apr 2014We develop and demonstrate a technique to engineer universal unitary baths in quantum systems. Using the correspondence between unitary decoherence due to ambient environmental noise and errors in a control system for quantum bits, we show ...Read more
Author:Bambalaza, Sonwabo E; Langmi, HW; Mokaya, R; Musyoka, Nicholas M; Khotseng, LEDate:May 2020High-pressure (700 MPa or ∼100 000 psi) compaction of dehydroxylated and hydroxylated UiO-66 for H2 storage applications is reported. The dehydroxylation reaction was found to occur between 150 and 300 °C. The H2 uptake capacity of powdered ...Read more
Author:Machaka, Ronald; Chikwanda, HKDate:May 2015This paper reports on an attempt to independently evaluate the validity and applicability of a new compaction equation recently presented by Gerdemann and Jablonski [Metallurgical and Materials Transactions A, 42 (2011) 1325-1333] using ...Read more
Author:Nzengue, AGB; Mpofu, K; Mathe, Ntombizodwa R; Daniyan, I; Muvunzi, RaDate:Jul 2023The chase for sustainable manufacturing that contributes to addressing climate change is of research interest across scientists and industrial sectors. The lightweight and high strength properties of aluminium alloys foster sustainable cost, ...Read more
Author:Elkoussy, A; Youssef, AF; Pityana, Sisa L; Taha, MADate:2019Coating steel surfaces with hard ceramic particles in Aluminum has a great influence to improve mechanical properties and wear resistance. This research investigated direct laser deposition, where no binder is used, of pure Aluminum and its ...Read more
Author:Roux, A; Nurick, GNDate:Sep 2009The Council for Scientific and Industrial Research (CSIR) conducts research into the effect of underwater explosions on maritime structures and equipment. One of the parameters that are required to be measured to a large degree of accuracy ...Read more
Author:Du Plessis, WP; Odendaal, JW; Joubert, JDate:Jan 2010Experimental measurements that accurately simulate the effect of a retrodirective cross-eye jammer on a monopulse radar are described. The accuracy of a recently published extended analysis of retrodirective crosseye jamming and the limitations ...Read more
Author:Dube, CDate:Sep 2013Mobile manipulators are highly susceptible to tip over due to the motion of the manipulator or the gradient of the slope being traversed by the robot’s mobile base. This paper presents the experimental validation of the tip over stability ...Read more
Author:Karsten, AE; Singh, A; Braun, MWDate:Apr 2011Laser light is frequently used in both diagnostics and treatment of patients. For any laser treatment to be effective it is important to deliver the correct dose at the treatment site. Human skin scatters and absorbs laser light in the visible ...Read more
Author:Rawal, A; Davies, PJDate:2005Net structures were produced by replacing the static die (spinneret) with two concentric dies (consisting of slots) rotating in opposite directions in a melt extrusion process. A series of net structures and filaments were produced from a ...Read more
Author:Koen, Hildegarde; De Villiers, Johan P; Roodt, H; De Waal, ADate:Mar 2017A significant challenge in ecological modelling is the lack of complete sets of high-quality data. This is especially true in the rhino poaching problem where data is incomplete. Although there are many poaching attacks, they can be spread ...Read more
Author:Ramoelo, Abel; Cho, Moses ADate:Feb 2018Leaf nitrogen concentration (leaf N, %) is an essential component for understanding biogeochemical cycling. Leaf N is a good indicator of grass or forage quality, which is important for understanding the movements and feeding patterns of ...Read more
Author:Adelabu, S; Mutanga, O; Adam, E; Cho, Moses ADate:Nov 2013Classification of different tree species in semiarid areas can be challenging as a result of the change in leaf structure and orientation due to soil moisture constraints. Tree species mapping is, however, a key parameter for forest management ...Read more
Author:Walters, Laticha EM; Scott, RE; Mars, MDate:2019Realisation of proven telemedicine scale-up benefits is a key consideration for South Africa, a developing country with a quadruple disease burden, inequitable access to healthcare, and ineffective and inefficient specialist referral pathways. ...Read more
Author:Erinosho, MF; Akinlabi, ET; Pityana, Sisa LDate:2016This paper presents the explorations conducted on the evolving microstructures and the dry sliding wear of the laser deposited Ti6Al4V/Cu composites. The laser powers between 1300 W and 1600 W; scanning speeds between 0.30 and 0.72 m/min were ...Read more
Author:Zwane, PE; Chapple, Stephen A; Masarirambi, MTDate:2011The global trade requirements have made protective clothing paramount in the agricultural sector. The aim of the study was to find the views of farmers on the use of protective garment for the agricultural sector in South Africa, and to measure ...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