Author:Du Plessis, L; Rust, FC; Horak, E; Nokes, WA; Holland, TJDate:Oct 2008The University of California, through the UC Pavement Research Centre (UC-PRC) located at Davis and Berkeley, started conducting Accelerated Pavement Testing (APT) research in 1994. This research is conducted for the California Department of ...Read more
Author:Chiloane, Lehlogonolo D; Roro, Kittessa T; Bischof-Niemz, Tobias SDate:Nov 2017South Africa has one of the highest carbon emissions per capita in the world, and this has raised the need to reduce reliance on coal generated power which is carbon intensive. The South African government has focussed on introducing renewable ...Read more
Author:Kemp, Lana; Nordengen, Paul A; Steenkamp, Anton J; Ithana, TDate:Oct 2018This paper presents the results of a newly-developed methodology that quantifies the road wear caused by heavy vehicles on the Namibian paved road network in terms of equivalent standard axles and a monetary value. This was achieved by ...Read more
Author:Labuschagne, F; De Beer, E; Roux, D; Venter, KarienDate:Jul 2017The ‘total cost of road traffic crashes’ metric is an important road safety indicator that serves as the departure point for understanding the extent and magnitude of the road safety problem in a country and the stifling impact it has on ...Read more
Author:Roos, Thomas HDate:Oct 2021The decarbonisation of hard-to-abate sectors globally will require significant volumes of carbon-free hydrogen. An investigation has been performed to determine the cost at which hydrogen can be generated by electrolysis using renewable ...Read more
Author:Van Wilgen, BW; De Lange, Willem JDate:Aug 2011This paper provides a brief review of the environmental and economic costs of invasive alien plants in South Africa as a background to assessments of returns on investment in weed biological control. The understanding of impacts and their ...Read more
Author:Nahman, Anton; De Lange, Willem JDate:Nov 2013In a previous paper (Nahman et al., 2012), the authors estimated the costs of household food waste in South Africa, based on the market value of the wasted food, as well as the costs of disposal to landfill. In this paper, we extend the ...Read more
Author:Nahman, Anton; De Lange, Willem JDate:Sep 2013We estimate the costs of food waste throughout the entire food value chain, from agricultural production through to consumption at the household level, in economic terms. First, food waste at each stage of the value chain was quantified in ...Read more
Author:De Lange, Willem J; Nahman, AntonDate:Jun 2015The economic, social and environmental costs of food waste are being increasingly recognised. Food waste consists of both edible and inedible components. Whilst wastage of edible food is problematic for obvious reasons, there are also costs ...Read more
Author:Nahman, Anton; De Lange, Willem J; Oelofse, Suzanna HH; Godfrey, Linda KDate:Nov 2012Food waste is problematic for a number of reasons, including the loss of a potentially valuable food source or resource for use in other processes (e.g. energy generation or composting), wasted resources and emissions in the food supply chain, ...Read more
Author:Wise, RM; Van Wilgen, BW; Le Maitre, David CDate:Aug 2012Mesquite (Prosopis species) were introduced to South Africa to provide fodder and shade for livestock, but some have become invasive, impacting on water and grazing resources. Mesquite’s net economic effects are unclear and their unequal ...Read more
Author:Van der Sluijs, MHJ; Hunter, LawranceDate:May 2018This review focusses on physical forms of contaminant including the presence, prevention and/or removal of foreign bodies, stickiness and seed-coat fragments rather than the type and quantity of chemical residues that might be present in ...Read more
Author:Hunter, LDate:Dec 1989Cotton lint contamination can be sub-divided into two main groups, namely those of natural origin and those of man-made origin.Read more
Author:Robinson, GA; Cawood, MP; Dobson, DADate:Mar 1977Knitting of all cotton and 60/40 percent cotton/polyester blends from singles yarns on a 28 gauge machine is described.Read more
Author:Shiloh, M; Hanekom, ECDate:Jul 1973Fabrics were woven from 30/70 wool/cotton yarns, two of them being plain weaves of 200g/m and 140 g/m, and one a poplin of 200 g/m.Read more