Author:Kabongo, GL; Mhlongo, Gugu H; Mothudi, BM; Hillie, KT; Swart, HC; Dhlamini, MSDate:2014In this work, the sol–gel method was used to prepare Ytterbium (Yb(sup3+)) doped ZnO nano-phosphors with different concentrations of Yb(sup3+) ions. Their structural, morphological, photoluminescence, electronic states and the chemical ...Read more
Author:Suliman, Ridhwaan; Oxtoby, Oliver F; Malan, AG; Kok, SDate:Apr 2014This paper details the evaluation and enhancement of the vertex-centred finite volume method for the purpose of modelling linear elastic structures undergoing bending. A matrix-free edge-based finite volume procedure is discussed and compared ...Read more
Author:Apps, P; Tock, MLADate:12 Aug 2005Continuous liquid-liquid extraction is a versatile, reliable and robust sample preparation technique, but there is a tendency for the solvent to make channels through the sample, causing uneven and incomplete extraction. A simple, cheap ...Read more
Author:Hou, S; Ye, Y; Liao, S; Ren, Jianwei; Wang, H; Yang, P; Du, K; Li, J; Peng, HDate:Jan 2020An ultrathin layer of hydrophilic titanium dioxide (TiO2) is coated on the gas diffusion layer (GDL) to enhance the performance of a proton exchange membrane fuel cell (PEMFC) at low relative humidity (RH) and high cell temperature. Both of ...Read more
Author:Suliman, Ridhwaan; Oxtoby, Oliver F; Malan, AG; Kok, SDate:Jan 2010This paper presents the formulation, implementation and evaluation of an enhanced matrix free edge-based finite volume approach to model the mechanics of solids undergoing large non-linear deformations. The developed technology is evaluated ...Read more
Author:Fashedemi, OO; Ozoemena, KIDate:Dec 2013Palladium based nano-alloys are well known for their unique electrocatalytic properties. In this work, a palladium-decorated FeCo@Fe/C core-shell nanocatalyst has been prepared by a new method called microwave-induced top-down nanostructuring ...Read more
Author:Kemp, Lana; Steyn, W; Roux, Michael PDate:Sep 2022This paper introduces the application of technology solutions into the realm of bridge inspection methodologies in South Africa, aiming to enhance the current visual bridge inspection methodology. Unmanned Aerial Vehicles (UAVs) can be used ...Read more
Author:Zhang, M; Chen, M; Shao, Y; Song, H; Liu, L; Ren, Jianwei; Liao, SDate:Mar 2019A high-performance Ni/Mo co-doped lithium manganate composite material, LiNi0.03Mo0.01Mn1.96O4, is prepared by a solidstate method, then a biomass-derived carbon layer with ethyl cellulose as the carbon source is applied to the surface of the ...Read morecb
Author:Hou, S; Chi, B; Liu, G; Ren, Jianwei; Song, H; Liao, SDate:Nov 2017The performance of the proton exchange membrane fuel cell (PEMFC) is significantly improved through introducing nitrogen-doped carbon nanotubes (NCNTs) into the catalyst layer (CL) and microporous layer (MPL) of the membrane electrode assembly ...Read more
Author:Mthunzi-Kufa, Patience; He, K; Ngcobo, Sandile; Warner, JWDate:Feb 2014Literature reports graphene, an atomic-thick sheet of carbon atoms as one of the promising biocompatible scaffolds that promotes cellular proliferation in human mesenchymal stem cells. On the other hand, different mammalian cell lines including ...Read more
Author:Modaberi, MR; Rooydell, R; Brahma, S; Akande, Amos A; Mwakikunga, Bonex W; Liu, C-PDate:Nov 2018We report on enhancing the selectivity and response of room (23 °C) and high temperature H2S gas sensing through controlled Ni doping (0–10 at%) into ZnO nanorods (NRs) grown with a facile solution growth method using a single hybrid bimetallic ...Read more
Author:De Kock, TJ; Joubert, ZF; Verhaeghe, Benoit MJA; Rust, FCDate:Oct 1994The degree to which a road is capable of accommodating traffic is dependent on functionality and economics. The higher the traffic the greater the challenge. Porous asphalt is currently one of the best alternatives to meet functionality ...Read more
Author:Dludla, Angeline G; Bembe, M; Olwal, T; Kyun Choi, JDate:Oct 2013SWEET routing protocol is one of the many pro- tocols developed for cluster formation and routing in wireless sensor networks. The SWEET protocol is a decentralized clus- tering protocol, it uses timers and interim updated cluster head ...Read more
Author:Ogunleye, OS; Van Belle, JPDate:Nov 2013Mobile devices such as cellular phones (including smartphones), tablet computers and Personal Digital Assistants already run a wide variety of software such as business enterprise applications, productivity software, mobile learning etc. New ...Read more
Author:Mudzanani, Khuthadzo; Van Heerden, E; Mbhele, Nkhangweleni R; Daramola, MODate:Jul 2021The present study intends to evaluate a synergy towards enhanced biogas production by co-digesting municipal sewage sludge (SS) with brewery spent grain (BSG). To execute this, physicochemical and metagenomics analysis was conducted on the ...Read more
Author:Erasmus, E; Anandjiwala, RDate:Nov 2008Natural fibres are often used for reinforcing thermoplastics, like polypropylene, to manufacture composite materials exhibiting numerous advantages such as high mechanical properties, low density and biodegradability. The mechanical properties ...Read more
Author:Erinosho, MF; Akinlabi, ET; Pityana, Sisa LDate:Apr 2016The laser metal deposition process possesses the combination of metallic powder and laser beam respectively. However, these combinations create an adhesive bonding that permanently solidifies the laser-enhanced-deposited powders. Titanium ...Read more
Author:Higgs, FSDate:Jun 1985A series of enhancements to the DEROB-IUA 1, 0 building thermal simulation system coding which aid the advanced user of the system in validation exercises is described.Read more