Author:Mellor, JR; Coville, NJ; Sofianos, AC; Copperthwaite, RGDate:23 Dec 1997The initial Raney copper WGS activity based on catalyst volume has been shown to be comparable to industrial and co-precipitated alternatives under varying reaction conditions. The presence of zinc oxide in the Raney copper structure was shown ...Read more
Author:Mellor, JR; Coville, NJ; Sofianos, AC; Copperthwaite, RGDate:23 Dec 1997Characterisation of partially leached Raney copper catalysts demonstrated that the chemical nature of the reactant surface could be determined by controlling the leaching process. Initial water-gas shift (WGS) activity of the Raney copper ...Read more
Author:Guest, IW; Pauw, CKDate:Apr 1993A rank detector is used to defect instantaneous received power fades in tracking radar. On detection of a fade, censorship of the angular position measurement is implemented in a Kalman tracking filter. It is shown that this technique can ...Read more
Author:Mtsweni, Jabu S; Abdullah, HDate:Nov 2014Information and communication technologies (ICTs) have an immense potential as a tool for development. It is now common knowledge that advances in the use of technology can improve economic opportunities for the poor, improve service delivery ...Read more
Author:Chowdhury, M; Oputu, O; Kebede, Mesfin A; Cummings, F; Cespedes, ODate:Dec 2015Scarcity of rapid and large scale synthesis of functional materials, hinders the progress from laboratory scale to commercial applications. In this study, we report a rapid and large scale synthesis of Co(Sub3)O(sub4) octahedron micron size ...Read more
Author:Forsyth, GG; Richardson, DM; Brown, PJ; Van Wilgen, BWDate:Jan 2004Gum trees, or eucalypts (Eucalyptus species), have been targeted for invasive alien plant clearing programmes in many parts of South Africa. This has caused some dissatisfaction where the species concerned also have useful characteristics, ...Read more
Author:Kleynhans, W; Salmon, BP; Wessels, Konrad J; Olivier, JCDate:Aug 2015Recent development has identified the benefits of using hyper-temporal satellite time series data for land cover change detection and classification in South Africa. In particular, the monitoring of human settlement expansion in the Limpopo ...Read more
Author:Pereira, MFVT; Williams, M; Bruwer, RDate:2009This paper highlights the work undertaken at the CSIR on the issue of rapid die manufacturing through the application and evaluation of a rapid prototyping technique and coating technologies applied to die components of a high pressure casting ...Read more
Author:Wang, S; Panayides, Jenny-Lee; Riley, D; Tighe, CJ; Hii, KKDate:Sep 2021The functionalisation of imidazoles is a necessary step in the formation of many active pharmaceutical intermediates. Herein, we report a flow chemistry approach for the rapid and efficient formation of 2-lithio-1-(triphenylmethyl)imidazole ...Read more
Author:Lodolo, EJ; Van Zyl, WH; Rabie, CJDate:Mar 1993The nuclear DNA (nDNA) of different isolates of three closely related, toxin-producing Fusarium species, F. moniliforme, F. nygamai and F. napiforme, was compared to ascertain the sensitivity of a molecular method to distinguish these three ...Read more
Author:Palaniyandy, Nithyadharseni; Kebede, Mesfin A; Ozoemena, KI; Mathe, Mahlanyane KDate:Jan 2019Nanostructured SnO2/onion-like carbon (OLC) composites were fabricated via a facile and rapid microwave-assisted synthesis technique. The influence of SnO2 nanorods anchored on OLC was investigated as an anode material for the first time in ...Read more
Author:De Koning, AJDate:Jul 2004Anchovy were stored at 17, 8, 0 and -6 degrees C. Samples were withdrawn periodically, the lipids extracted, purified, and analysed for free and esterified cholesterol. From the results of these tests the rates of the enzymatic esterification ...Read more
Author:Jooste, S; Claassen, MariusDate:Jul 2001The principle of ecosystem protection in the South African Water Act requires that water resource management tools for a multiple stressor environment be tailored to the characteristics of the aquatic ecosystem. The requirements of the Act, ...Read more
Author:Sivakumar, V; Vishnu Prasanth, P; Kishore, P; Bencherif, H; Keckhut, PDate:2011For the first time, climatology of the middle atmosphere thermal structure is presented, based on 14 years of LIDAR and satellite (HALOE, SABER, CHAMP and COSMIC) temperature measurements. The data is collected over a southern sub-tropical ...Read more
Author:Ittmann, HWDate:1996South Africa has made historical changes during the past six years. With the change of Government in May 1994, the majority party of the Government of National Unity, the ANC, announced its master plan for the new South Africa. That was the ...Read more
Author:Archer, Emma RMDate:Oct 2011Scientists in southern Africa and elsewhere focusing on climate change and agriculture are increasingly demonstrating how livestock, as a highly climate sensitive sector, may be affected by climate change. The Fourth Assessment Report (AR4) ...Read more
Author:Genthe, Bettina; Kapwata, Thandi; Le Roux, Wouter J; Chamier, Jessica; Wright, Caradee YDate:May 2018Anthropogenic pollution was identified as an environmental problem of concern when, in 2008, dozens of crocodiles died in the Olifants River catchment near the border of South Africa and Mozambique. Given the close proximity of households to ...Read more
Author:Chauke, L; Garbers-Craig, AMDate:Jul 2013Interaction between electrolyte and carbon cathodes during the electrolytic production of aluminium decreases cell life. This paper describes the interaction between carbon cathode materials and electrolyte, based on industrial and laboratory ...Read more