Author:Reddy, GSM; Narasimhaswamy, T; Jayaramudu, J; Sadiku, ER; Raju, KM; Ray, SSDate:May 2013A new series of side chain liquid crystalline polymers containing a core, a butamethylenoxy spacer, ester groups, and terminal alkoxy groups were synthesised and their structures were confirmed. The core was constructed with two phenyl rings ...Read more
Author:Chutter, FMDate:1962In the course of an ecological survey of the macro-invertebrate fauna of the stream and rivers in the catchment of the Vaal Dam the author found a new species of Pseudagrion which is described here. The author’s colleagues, engaged in similar ...Read more
Author:Welsh, HDate:1963The author is indebted to Dr. A.D Harrison of the Department of Zoology, University of Rhodesia and Nyasaland, Salibury, for sending him some algal material collected on the 25th of April 1962, in a granophyre rock pool high above the Lundi ...Read more
Author:Ren, Jianwei; Segakweng, T; Langmi, Henrietta W; North, Brian C; Mathe, Mahlanyane KDate:Oct 2015Metal–organic framework (MOF) materials are only obtained as loose powders with low packing density and thermal conductivity. To enable the developed MOF powdered materials to be utilized in a hydrogen storage system, in this study, MIL-101 ...Read more
Author:Chidembo, AT; Ozoemena, KI; Agboola, BO; Gupta, V; Wildgoose, GG; Compton, RGDate:Nov 2010The supercapacitive properties of nickel(II) tetraaminophthalocyanine(NiTAPc)/multi-walled carbon nanotube(MWCNT) nanocomposite films have been interrogated for the first time and found to possess a maximum specific capacitance of 981 ± 57 F ...Read more
Author:Botha, CJ; Steenkamp, PA; Olivier, A; Bekker, LCDate:2011Putative Nicotiana glauca (wild tobacco) poisoning was diagnosed in a flock of ostriches near Oudtshoorn, South Africa. Post mortem examinations (n = 7) were performed on ostriches (Struthio camelus) that had died. Suspicious leaf remnants ...Read more
Author:Sembolini, F; Elahi, PJ; Pearce, FR; Power, C; Knebe, A; February, SeanDate:Apr 2016We have simulated the formation of a massive galaxy cluster (M(supcrit)(sub200) = 1.1×10(sup15)h(sup-1)M) in a CDM universe using 10 different codes (RAMSES, 2 incarnations of AREPO and 7 of GADGET), modeling hydrodynamics with full radiative ...Read more
Author:Mokgalaka, MN; Pityana, Sisa L; Popoola, PAI; Mathebula, TDate:Mar 2014The NiTi intermetallic possesses a number of good properties, such as high wear, oxidation, and corrosion resistance. This paper focuses on the deposition of NiTi intermetallic coatings on Ti6Al4V substrate by laser melting of Ti and Ni ...Read more
Author:Schoeman, JJ; Steyn, ADate:30 May 2003The nitrate-nitrogen concentration (>6 mgA) and the salinity (>1000 mg/l TDS) of many borehole waters in rural areas in South Africa are too high for human consumption. Therefore, an urgent need for water denitrification and water desalination ...Read more
Author:Adekunle, AS; Mamba, BB; Agboola, BO; Ozoemena, KIDate:Sep 2011Nitrite, NO2- (in neutral), and NO (in acidic media) were used as analytical probe to investigate the electrocatalytic properties of Prussian blue nanoparticles (PB) modified edge plane pyrolytic graphite (EPPG) electrode. Results indicate ...Read more
Author:Mabena, LF; Ray, SS; Mhlanga, SD; Coville, NJDate:May 2011The science and technology of catalysis is of fundamental importance to a national economy. Today about 90% of all technical chemicals are manufactured by the use of catalysts. Nanoparticles of noble metals are extremely important materials ...Read more
Author:Heavens, A; Fantaye, Y; Sellentin, E; Eggers, H; Hosenie, Z; Kroon, Steve; Mootoovaloo, ADate:Sep 2017We compute the Bayesian Evidence for models considered in the main analysis of Planck cosmic microwave background data. By utilising carefully-defined nearest-neighbour distances in parameter space, we reuse the Monte Carlo Markov Chains ...Read more
Author:Ntshotsho, Phumza; Reyers, B; Esler, KJDate:Mar 2012Evidence-based practice is not possible without an evidence base. Guldemond et al. confuse our attempt at assessing the status of the evidence base of restoration programs in South Africa with attempting to assess whether restoration is ...Read more
Author:Mondal, S; Das, A; Bandyopadhyay, J; Ray, Suprakas S; Heinrich, G; Bandyopadhyay, ADate:Jun 2016This paper introduces a poly(ethylene-co-octene)-poly(ethylene-co-vinyl acetate) double network hybrid as a noble additive cum compatibilizer for poly(ethylene-co-octene) (POE). The addition of only 0.5 mass% of the hybrid into POE has raised ...Read more
Author:Vermaas, RL; Edwards, AL; Soer, MDate:Sep 2007The objective of the study was to investigate the relationship between the audiogram configuration and its calculated Percentage Loss of Hearing (PLH), and the experience of hearing handicap in noise-exposed gold miners. The experience of ...Read more