Author:Jayaramudu, J; Das, K; Sonakshi, M; Reddy, GSM; Aderibigbe, B; Sadiku, R; Ray, Suprakas SDate:Mar 2014Zinc oxide (ZnO) powder was investigated in terms of its use as filler in order to improve the inherent properties of PLA. Biocomposite films of PLA with different loadings of ZnO were prepared by solution casting method. Morphological analyses ...Read more
Author:Motsoeneng, TS; Mochane, MJ; Mokhena, Teboho C; Mathew, Maya JDate:2020Lignin can be extracted from a variety of plants such as soft and hard wood which account for the different functional groups and contents as well as number average molecular weights. Different chemical treatments have been employed to isolate ...Read more
Author:Jayaramudu, J; Maity, Arjun; Sadiku, ER; Guduri, BR; Rajulu, AV; Ramana, CHVV; Li, RDate:Oct 2011Natural cellulose fabrics were newly identified from the branches of the Cordia dichotoma. The structure of the fabrics was analysed by FTIR and X-ray diffraction. The net-like morphologies of the untreated, bleached and 5% NaOH (alkali) ...Read more
Author:Bode, ML; Gates, PJ; Gebretnsae, SY; Vleggaar, RDate:Mar 2010The structure elucidation of a novel natural product pavettamine (1), the causal agent of the plant toxicosis gousiekte, is reported. The structure was defined by analysis of NMR and MS data and the relative configuration followed from the ...Read more
Author:Eichinger, BE; Wimmer, E; Pretorius, JDate:Jun 2001The lambda-transition of elemental sulfur occurring at about 159°C has long been associated with the conversion of cyclic S8 rings (c-S8) to amorphous polymer (a-S) via a ring opening polymerization. It is demonstrated, with the use of both ...Read more
Author:Fourie, CJS; Henry, G; Maré, LPDate:Sep 2009The Waterberg Coalfield is destined to become the major source of energy for South Africa in the future. In 2008, Coaltech Research Organisation funded an airborne magnetic and radiometric survey over the Karoo-age Ellisras Basin in which the ...Read more
Author:Maphoru, MV; Kesavan Pillai, Sreejarani; Heveling, JDate:Apr 2017Compositional and morphological studies on supported platinum are important for the improvement and expanded use of catalysts for oxidative coupling reactions. Nanocomposites consisting of 5% Pt supported on activated carbon and promoted with ...Read more
Author:Maphoru, MV; Kesavan Pillai, Sreejarani; Haveling, JDate:Apr 2017Compositional and morphological studies on supported platinum are important for the improvement and expanded use of catalysts for oxidative coupling reactions. Nanocomposites consisting of 5% Pt supported on activated carbon and promoted with ...Read more
Author:Botes, Annelize; Bolokang, Amogelang S; Kortidis, Ioannis; Matjeke, VDate:Mar 2019The structure-property relationship of the laser deposited 316 L/St 1.2311 and Fe/St 1.2311 on E9 substrate was investigated. The variation in the geometrical features of the deposited layers, width, thickness, depth of penetration into the ...Read more
Author:Taljaard, Susan; Monteiro, Pedro MS; Botes, WAMDate:Oct 2006Activities and developments in the coastal zone, and in adjacent catchments, pose an increasing threat to the sustainability of the natural and socio-economic goods and services supplied by marine ecosystems. Governing authorities have had ...Read more
Author:Cox, MA; Mphuthi, N; Nape, I; Mashaba, Nikiwe P; Cheng, L; Forbes, ADate:Sep 2020Optical communication is an integral part of the modern economy, having all but replaced electronic communication systems. Future growth in bandwidth appears to be on the horizon using structured light, encoding information into the spatial ...Read more
Author:Schmitz, P; Cooper, Antony KDate:May 2009There are many standards available for archiving digital and analogue (paper) data and documents, but these come from various sources and it can be difficult to understand what standards should be used, and where. Researchers have executed a ...Read more
Author:Mofokeng, Tladi G; Ray, Suprakas S; Ojijo, Vincent ODate:Jan 2018This article reports, for the first time, on how the kinetics and thermodynamics of the melt-processing control the nano/micro-structure development and properties of nanoclay-filled polypropylene (PP)/low-density polyethylene (LDPE) blend ...Read more
Author:Dawood, Zubeida C; Keet, CMDate:Dec 2020Large and complex ontologies lead to usage difficulties, thereby hampering the ontology developers’ tasks. Ontology modules have been proposed as a possible solution, which is supported by some algorithms and tools. However, the majority of ...Read more
Author:Kfir, R; Hilner, C; Du Preez, M; Bateman, BDate:1995In this study concentration techniques regularly used for viral detection; i.e. flat-bed ultra-filtration and filterite cartridge filtration, were evaluated for their efficacies in the recovery of protozoan parasites from water. Recovery of ...Read more
Author:Mavonga, T; Zana, N; Durrheim, RJDate:Nov 2010In recent decades, civil wars in the eastern provinces of the Democratic Republic of Congo have caused massive social disruptions, which have been exacerbated by volcanic and earthquake disasters. Seismic data were gathered and analysed as ...Read more