Author:Tshabalala, Zamaswazi P; Motaung, David E; Mhlongo, Gugu H; Ntwaeborwa, OMDate:Mar 2016TiO2 nanoparticles were synthesized via a simple hydrothermal method in a sodium hydroxide (NaOH) aqueous solution and washed with distilled water and different concentrations of hydrochloric acid which acted as the morphological/crystallographic ...Read more
Author:Tshabalala, Zamaswazi P; Motaung, David E; Mhlongo, Gugu H; Ntwaeborwa, OMDate:Mar 2016TiO(sub2) nanoparticles were synthesized via a simple hydrothermal method in a sodium hydroxide (NaOH) aqueous solution and washed with distilled water and different concentrations of hydrochloric acid which acted as the morphological/cryst ...Read more
Author:Nwanya, AC; Obi, D; Ozoemena, Kenneth I; Osuji, RU; Awada, CDate:Apr 2016We describe the chemical synthesis of binderless and surfactant free CuO films for pseudocapacitive applications. Nanosheet-like and nanorod-like CuO films are deposited on indium tin oxide (ITO) substrates using the successive ionic layer ...Read more
Author:Senthil, RA; Priya, A; Theerthagiri, J; Selvi, A; Palaniyandy, Nithyadharseni; Madhavan, JDate:Nov 2018The influence of hematite iron oxide (α-Fe2O3) nanoparticles in tungsten oxide (WO3) nanorods photocatalyst on photodegradation of organic pollutant was investigated in the present work. The spherical-shaped α-Fe2O3 nanoparticles and WO3 ...Read more
Author:Taylor, JRN; Dewar, J; Taylor, J; Von Ascheraden, RFDate:Apr 1997Research was undertaken to facilitate the breeding and selection of sorghums with both good milling and good porridge-making characteristics. Twenty seven cultivars were grown in the same locality under rainfed and supplementary irrigation ...Read more
Author:Mwim, EM; Mtsweni, Jabu S; Chimbo, BDate:Jul 2023The healthcare sector has become a high target of cyber threats due to the nature of the industry and the potential of personal and confidential information. Human related factors have proven to be the major contributor to the challenges ...Read more
Author:Taylor, JRN; Robbins, DJDate:Sep 1993An investigation into factors influencing beta-amylase activity in sorghum malt confirmed that ungerminated sorghum grain exhibited essentially no beta-amylase activity. Malted sorghum had beta-amylase activity less than 25% of the level in ...Read more
Author:Carter, P; Carter, TJ; Viljoen, ADate:Mar 1996Failure analysis and life prediction of a large, complex fin plate heat exchanger required metallurgical analysis, at the beginning of 1993, inter-stream leaks were found in two aluminium plate fin heat exchangers in parallel operation at a ...Read more
Author:Mackintosh, G; Colvin, CDate:May 2003The impact of water-borne disease in South Africa is significant. An estimated 43,000 deaths per annum, including 20% of deaths in the 1-5 years age group, are directly attributable to diarrhoeal diseases. Drinking water quality provision in ...Read more
Author:James, ADate:Mar 1997Chains are used for various purposes in a wide range of industries. This paper describes three case studies where a failure analysis was carried out on chains used in markedly different applications namely: a furnace health, a drilling rig ...Read more
Author:Botha, Johannes G; Pieterse, HeloiseDate:Mar 2020Fake news, often referred to as junk news or pseudo-news, is a form of yellow journalism or propaganda created with the purpose of distributing deliberate disinformation or false news using traditional print or online social media. Fake news ...Read more
Author:Smith, Andrew CDate:Jul 2021The English language is but one of many languages globally in use, yet it seems to dominate the world of automation in its application to computer programming. Our research considers a programming environment in which the written word is not ...Read more
Author:Jule, L; Mal’nev, V; Mesfin, B; Senbeta, T; Dejene, FDate:Jul 2015We investigate light scattering by core–shell consisting of metal/dielectric composites considering spherical and cylindrical nanoinclusions, within the framework of the conventional Rayleigh approximation. By writing the electric potential ...Read more
Author:Ramulifho, T; Ozoemena, KI; Modibedi, Remegia M; Jafta, CJ; Mathe, Mahlanyane KDate:Jan 2012The preparation of metal nanoparticles (Pd, Ni, Sn) supported on sulfonated multi-walled carbon nanotubes (SF-MWCNTs) using a very rapid microwave-assisted solvothermal strategy has been described. Electrocatalytic behaviour of the SF-MWCNT-Pd ...Read more
Author:Kotze, FJ; Strydom, CA; Du Plessis, A; Dlamini, TLDate:Mar 2010The direct excitation of CO2 using fast (nanosecond) and ultrafast (femtosecond) pulsed lasers was investigated. A gas reaction cell was used to excite CO2 in a 50 : 50 mixture of CO2 and CH4 using nano- and femtosecond laser systems, to ...Read more
Author:Musee, N; Zvimba, JN; Schaefer, Lisa M; Nota, N; Sikhwivhilu, LM; Thwala, MelusiDate:2014The fate and behaviour assessment of ZnO- and Ag-engineered nanoparticles (ENPs) and bacterial viability in a simulated wastewater treatment plant (WWTP) fed with municipal wastewater was investigated through determination of ENPs stability ...Read more
Author:Masindi, Vhahangwele; Gitari, MW; Tutu, H; De Beer, MorrisDate:Mar 2016This study assessed the fate of inorganic contaminants post treatment of acid mine drainage by cryptocrystalline magnesite. To accomplish that, neutralization and metal attenuation were evaluated and complemented with simulations using ...Read more
Author:Masindi, Vhahangwele; Osman, Muhammad S; Mbhele, Nkhangweleni R; Rikhotso, Rirhandzu SDate:2017Basic Oxygen Furnace (BOF) slag has been widely used for Acid Mine Drainage (AMD) treatment with its reaction chemistry and contaminants attenuation mechanisms barely reported. This pioneer study was therefore designed with the aim of evaluating ...Read more
Author:Schaefer, Lisa M; Brözel, VS; Venter, SNDate:Aug 2013Investigations were carried out to evaluate and quantify colonization of laboratory-scale drinking water biofilms by a chromosomally green fluorescent protein (gfp)-tagged strain of Salmonella Typhimurium. Gfp encodes the green fluorescent ...Read more