Author:Turner, P; Murphy, RJDate:Mar 1998This paper forms a continuation of the work on treatment of timber products with gaseous borate esters. Turner and Murphy (1995) in an earlier paper indicated that gas flow rate into the wood substrate was the principle factor limiting the ...Read more
Author:Malise, TTA; Nweke, EE; Takundwa, Mutsa M; Fru, PF; Thimiri Govindaraj, Deepak BDate:May 2023In the past few years, development of approved drug candidates has improved the disease management of multiple myeloma (MM). However, due to drug resistance, some of the patients do not respond positively, while some of the patients acquire ...Read more
Author:Schoeman, JJ; Steyn, A; Scurr, PJDate:Sep 1996Reverse osmosis (RO) and physical/chemical technology were evaluated for treatment of neutralized spent acid effluent (seepage) containing high concentration levels of TDS (7500mg/l), Ca (400 mg/l), Cr-V1 (42 mg/l), nitrate-nitrogen (827 ...Read more
Author:Staver, AC; Archibald, S; Levin, SDate:2011Savannas are known as ecosystems with tree cover below climate-defined equilibrium values. However, a predictive framework for understanding constraints on tree cover is lacking. The authors present a) a spatially extensive analysis of tree ...Read more
Author:Van Schoor, Michael; Colvin, CDate:Sep 2009In this paper, the application of ground penetrating radar (GPR) for the mapping of near surface tree roots is demonstrated. GPR enables tree roots to be mapped in a non-destructive and cost-effective manner and is therefore a useful prospecting ...Read more
Author:Gondwe, MFK; Geldenhuys, CJ; Chirwa, PWC; Assédé, ESP; Cho, Moses ADate:Nov 2020Comparative information on the composition and diversity in tree species associations in Miombo woodland is limited. This study assessed how tree species associations across forest reserves of Miombo woodland in Malawi varied in composition ...Read more
Author:Scholes, RJ; Archer, SRDate:1997Savannas occur where trees and grasses interact to create a biome that is neither grassland nor forest. Woody and gramineous plants interact by many mechanisms, some negative (competition) and some positive (facilitation). The strength and ...Read more
Author:Scholes, BDate:Feb 2006A group of researchers at the CSIR have been investigating the question “What controls the growth rate of trees in African savannas”? A combination of simple measurements taken in the field over long periods of time, with high-technology ...Read more
Author:Pandarum, Aradhna; Lekoloane, Gaoshitwe A; Milazi, Dominic BKDate:Jan 2019Rising electricity prices, potential for power outages awareness on the need to reduce greenhouse gas emissions, and decreasing technology costs have made investment into small scale embedded generation more attractive to many end-user consumers ...Read more
Author:Pretorius, CJDate:Mar 2012Currently, there is no occupational exposure limit (OEL) for diesel particulate matter (DPM) in South Africa. Recently the Department of Mineral Resources and the mining industry have made efforts to determine which concentration of DPM could ...Read more
Author:Maia, JorgeDate:Oct 2017This presentation explores and compares the developments and outlook of the global economy, as well as the South African economy in terms of industrial growth.Read more
Author:Masekoameng, KE; Leaner, J; Dabrowski, James MDate:Aug 2010Recent studies suggest an increase in mercury (Hg) emissions to the global environment, particularly as a result of anthropogenic activities. This has prompted many countries to complete Hg emission inventories, based on country-specific Hg ...Read more
Author:Mapiravana, JosephDate:Jul 2012This paper was motivated by the need to identify trends in building materials research development and application that will significantly reduce building costs, life cycle costs and minimise the lead time for building delivery in South Africa ...Read more
Author:Scholes, RJ; Dowty, PR; Caylor, K; Parsons, DAB; Frost, PGH; Shugart, HHDate:Jun 2002The Kalahari sand sheet occupies 2.5 million ha in southern Africa. It is an area with relatively similar deep Aeolian soils, and a strong south to north gradient in rainfall, from 200 to 1000 mm mean annual precipitation (MAP) in the region ...Read more
Author:Meyer, AA; Weerts, Steven PDate:Sep 2009In this invited paper presented to the South Western Indian Ocean Fisheries Commission's fouth session, the trends in South Western Indian Ocean climatology have been evaluated for the 21st century. The scientific information presented in the ...Read more
Author:Eckhardt, HC; Van Wilgen, BW; Biggs, HDate:Jun 2000South Africa’s Kruger National Park is one of the largest conservation areas in Africa. In 1940, 1974 and 1998 changes in the cover and density of shrubs and trees were assessed from aerial photographs, and in 1984 and 1996 fixed-point ...Read more