Author:Tesfaye, T; Sithole, Bishop B; Ramjugernath, D; Ndlela, Luyanda LDate:Feb 2018Commercially processed, untreated chicken feathers are biologically hazardous due to the presence of blood-borne pathogens. Prior to valorisation, it is crucial that they are decontaminated to remove the microbial contamination. The present ...Read more
Author:Yeates, CA; Smit, MS; Botes, AL; Breytenbach, JC; Krieg, HMDate:Jan 2007Various studies have described the optimisation of the hydrolysis of epoxides through epoxide hydrolase, however, far fewer have investigated the specific application of whole cells containing the enzyme. For this reason the enantioselective ...Read more
Author:Brady, D; Steenkamp, Lucia H; Skein, E; Chaplin, JA; Reddy, SDate:04 Mar 2004In a biocatalytic reaction the immobilized lipase ChiroCLEC-CR enantioselectively hydrolysed a naproxen ethyl ester racemate, yielding (S)-naproxen with an enantiomeric excess of more than 98%, an enantiomeric ratio (E) of more than 100, and ...Read more
Author:Broughton, BA; Heise, RDate:Oct 2008A variable stability, blended-wing-body research mini-UAV was developed at the CSIR in South Africa. The purpose of the UAV was to study some of the aerodynamic design and control issues associated with flying wing geometries and to develop ...Read more
Author:Masuku, EP; Moller, H; Knutsen, R; Ivanchev, L; Govender, GDate:Jun 2009The traditional solution treatment cycles that are currently applied to rheo-processed A201 are mostly those that are used for conventional castings. These solution treatments are not necessarily the optimum solution treatments for rheo-processing. ...Read more
Author:Moller, H; Govender, G; Stumpf, WEDate:Nov 2007The heat treatment cycles that are currently applied to processed components are mostly those that are in use for traditional dendritic alloys. These heat treatments are not necessarily the optimum heat treatments for SSM processing. The T6 ...Read more
Author:Masina, Bathusile N; Lafane, S; Wu, Lorinda; Abdelli-Messaci, S; Kerdja, T; Forbes, ADate:Feb 2014Fast imaging plasma plume study have been carried out on vanadium-oxygen plasma generated using 248 nm, 25 ns pulses from an excimer KrF laser under oxygen atmosphere. The plume expansion dynamics of an ablated VO(sub2) target was investigated ...Read more
Author:Maweni, Thabisa; Setati, Tiro; Botha, NatashaDate:Nov 2023Inventory management in warehouses is a crucial task in the logistics industry. Manual stocktaking in larger-scale warehouses can be time-consuming and labour-intensive. To automate this process, unmanned aerial vehicles (UAVs) have gained ...Read more
Author:Szewczuk, S; Roux, SP; Lindeque, M; Germanis, JDate:01 Sep 2010Municipal waste water, or sewage, is a combination of domestic and industrial effluent. The increasing volume of sewage due to urbanisation and economic growth places pressure on the treatment performance of existing waste treatment systems. ...Read more
Author:Gamedze, NF; Zwane, PE; Hunter, LawranceDate:Apr 2018The increasing global awareness of ecofriendly and sustainable production and products has encouraged the use of natural fibres and dyes. Although research has been undertaken on the sources and applications of natural dyes, only a few such ...Read more
Author:Duvenhage, DF; Brent, AC; Stafford, William HL; Van Den Heever, DDate:Jun 2020Renewable Energy Technologies are rapidly gaining uptake in South Africa, already having more than 3900 MW operational wind, solar PV, Concentrating Solar Power (CSP) and biogas capacity. CSP has the potential to become a leading Renewable ...Read more
Author:Debnath, S; Ballav, N; Nyoni, H; Maity, Arjun; Pillay, KDate:Feb 2015A polyaniline-coated titanium oxide nanocomposite (PTO) was synthesized, characterized and used in the catalytic photo-degradation of the anionic dyes Eosin Yellow (EY) and Naphthol blue black (NBB). An emphasis was placed on the key parameters ...Read more
Author:Rossouw, C; Chetty, A; Moolman, S; Hoppe, H; Birkholtz, L; Mancama, Dalubuhle TDate:Feb 2010Much research remains to be done in order to understand the Plasmodium-liver interaction process. While previous in vitro studies have focused on two-dimensional (2D) cell culture, it is becoming more evident to researchers that the context ...Read more
Author:Semmelink, CJ; Groenewald, M; Du Plessis, EDate:Mar 1994The report deals with the site investigations in connection with the compaction standards, that is a comparison between actual in situ dry densities achieved compared to specification requirements, for road layer work for the periods 91/92, ...Read more
Author:Jacobs, V; Patnaik, A; Anandjiwala, RD; Maaza, MDate:Jun 2011Electrospinning of chitosan, a naturally occurring polysaccharide biopolymer, has been investigated. In this paper, the authors report the optimization of electrospinning process and solution parameters using factorial design approach to ...Read more
Author:Seid, ER; Majozi, TDate:May 2014Presented in this contribution is a formulation that addresses optimization of both water and energy, while simultaneously optimizing the batch process schedule. The scheduling framework used in this study is based on the recent and efficient ...Read more
Author:Liu, I-S; Takawira, F; Xu, HJDate:Aug 2007This paper presents a joint medium access control and physical (MAC-PHY) layers solution for optimizing the system performance in the hybrid Token-CDMA MAC system. The proposed scheme is designed in order to provide continuous monitoring of ...Read more
Author:Gbadeyan, OJ; Adali, S; Bright, G; Sithole, Bishop B; Onwubu, SDate:Jul 2020The possibility of obtaining calcium carbonate nanoparticles from Achatina fulica shell through mechanochemical synthesis to be used as a modifying filler for polymer materials has been studied. The process of obtaining calcium carbonate ...Read more
Author:Bergh, J; Snedden, Glen; Dunn, DwainDate:Apr 2020This paper presents the predicted, as well as final experimental results for the design of an automatically optimized non-axisymmetric endwall and as such, attempts to close the loop between design and practice, providing additional information ...Read more