Author:Roux, SPDate:May 2009Include neutralization and chemical precipitation as well as membrane dependent processes. Biological sulphate reduction is another, environmentally benign option but relies heavily on the availability of an economically viable electron donor ...Read more
Author:Van Rooyen, Corney; Burger, HP; Kazadi, BPDate:Nov 2006Laser welding trials were performed on thin walled cylindrical Grade 250 maraging steel tubes to determine its suitability as a joining process for rocket motor casings. Bead-on-plate (BOP) and butt welded samples were produced utilising a 5 ...Read more
Author:Gregor, Luke; Kok, S; Monteiro, Pedro MSDate:Dec 2017The Southern Ocean accounts for 40 % of oceanic CO2 uptake, but the estimates are bound by large uncertainties due to a paucity in observations. Gap-filling empirical methods have been used to good effect to approximate pCO2 from satellite ...Read more
Author:Padayachi, YR; Thambiran, TirushaDate:Oct 2012Road transport is considered to be a growing source of atmospheric emissions in African countries. In South Africa, competition in the business sector, reduction in rail usage, deregulation of freight transportation and a growing middle income ...Read more
Author:Gregor, L; Monteiro, Pedro MSDate:May 2013This study was undertaken to characterise the seasonal cycle of air–sea fluxes of carbon dioxide (CO(sub2)) in the southern Benguela upwelling system off the South African west coast. Samples were collected from six monthly cross-shelf cruises ...Read more
Author:West, NJ; Jandrell, IR; Forbes, ADate:2006This paper describes the preliminary small-scale experiments conducted in order to investigate the influence of intensely focused laser light produced by a CO2 laser on high voltage fields. The laser used operated at a maximum energy of 430 ...Read more
Author:Feig, Gregor T; Mudau, Tami E; Monteiro, Pedro MS; Joubert, WarrenDate:Oct 2016It has become essential to accurately estimate the emission and uptake of atmospheric carbon dioxide (CO(sub2)) around the globe. Atmospheric CO(sub2) plays a central role in the Earth’s atmospheric, ocean and terrestrial systems and it has ...Read more