Author:Muronga, KhangweloDate:Feb 2017The Naturalistic Driving Studies (NDS) are research methods that have the ability to improve existing methods for collecting data about driver performance and driver behaviour in normal driving conditions. The purpose of this research is to ...Read more
Author:Foax, LJ; Mazibuko, NEDate:Oct 2008Severity levels of air pollutants rich in oxides, chlorides and sulphides were successfully measured in indoor and outdoor atmospheres using pure copper and silver coupon corrosivity monitoring (CCM) metal strips when the maximum exposure ...Read more
Author:Tlotleng, MonnammeDate:May 2019Producing alloys via in-situ laser alloying approach is becoming very easy and a topical issue in the field of laser additive manufacturing. Several studies have emerged, accompanied by a statement by Gasper et al. (2017), who reported the ...Read more
Author:Mokgonyane, TB; Sefara, Tshephisho J; Manamela, MJ; Modipa, TI; Masekwameng, MSDate:Aug 2020Automatic speaker recognition is the task of automatically determining or verifying the identity of a speaker from a recording of his or her speech sample and has been studied for many decades. One of the most important steps of speaker ...Read more
Author:Mlando, Mvubu B; Anandjiwala, Rajesh D; Patnaik, AsisDate:Apr 2019This article reports a study on the effect of different natural fibres, their blend ratios and varying air gaps between a needle-punched non-woven fabric and polystyrene backing on the sound absorption coefficients of the needle-punched ...Read more
Author:Ejikeme, PM; Makgopa, K; Ozoemena, KIDate:Jul 2016The operating life of a fuel cell is expected to be thousands of hours. One of the critical components of the fuel cell that will allow for such long-life cycle is the catalyst-support material. The support material is expected, amongst others, ...Read more
Author:Mhlongo, Gugu H; Ntwaeaborwa, OM; Dhlamini, MS; Swart, HC; Hillie, KTDate:Feb 2011SiO2:Pr3+–Ce3+ phosphor powders were successfully prepared using a sol–gel process. The concentration of Pr3+ was fixed at 0.2 mol% while that of Ce3+ was varied in the range of 0.2–2 mol%. High resolution transmission electron microscopy ...Read more
Author:Thoresen, M; Malgas, S; Gandla, ML; Jonsson, LJ; Sithole, Bishop B; Pletschke, BIDate:Aug 2021Lignocellulosic biomass is an important renewable resource to produce biofuels, due to its abundance and high polysaccharide content. Bioconversion is generally achieved in two stages: (i) pre-treatment, to reduce biomass recalcitrance, and ...Read more
Author:Savage, WHDDate:1950The work incorporated in this report was undertaken because of the introduction of new grading regulations governing the export of col from the Union, in which minimum analytical requirements for the several grades of coal were laid down.Read more
Author:James, NC; Van Niekerk, Lara; Whitfield, AK; Potts, WM; Götz, A; Paterson, AWDate:Oct 2013Estuaries are dynamic and their physical and chemical characteristics can change over a scale of hours to years. Consequently, estuarine fish assemblages often exhibit large temporal variations in abundance and composition related to changes ...Read more
Author:Moodie, B; La Grange, CCDate:1958By applying the Burstlein principle of controlled crushing and screening to coal from Blesbok Collier it is possible to obtain a product of lower ash and higher swelling number but it is probably preferable to effect these improvements in the ...Read more
Author:Brown, ACDate:1985This review of international literature on the biological effects of crude oil pollution in the sea relevant to the South African situation is based on some hundred selected referenced.Read more
Author:Mokgonyane, TB; Sefara, Tshephisho J; Manamela, MJ; Modipa, TIDate:Aug 2019Speaker recognition is a technique that automatically identifies a speaker from a recording of their speech utterance. Speaker recognition technologies are taking a new direction due to rapid progress in artificial intelligence. Research in ...Read more
Author:Ramasobane, P; Mashinini, MP; Masina, Bathusile NDate:Nov 2022This study investigated the microstructural evolution of Ti6Al4V-ELI reinforced with TiC, fabricated via in-situ laser metal deposition technique. The 3.85% volume fraction TiC/Ti6Al4V-ELI metal composite samples were fabricated at two different ...Read more
Author:Musee, N; Oberholster, Paul J; Sikhwivhilu, L; Botha, AMDate:2010Increasing uses of engineered nanoparticles (ENPs) in commercial products and industrial applications has eventually resulted to their releases into atmospheric, terrestrial, and aquatic environments. However, knowledge gaps in ENPs toxicity, ...Read more
Author:Edwards, ADate:Apr 2012Mineworkers are exposed to combinations of stressors, since they spend most of the working shift performing physical work under noisy, hot, humid and dusty conditions, in some cases with exposure to chemicals. Such combined exposure confounds ...Read more
Author:Long, Craig S; Loveday, Philip W; Groenwold, AADate:Sep 2009The effects of selected membrane, plate and flat shell finite element formulations on optimal topologies are numerically investigated. Two different membrane components are considered. The first is a standard 4-node bilinear quadrilateral, ...Read more
Author:Scholes, RJ; Van Breemen, NDate:Sep 1997Alteration of land use will continue to be the dominant driver of environmental change in the tropics for the next several decades. It can take the form of fundamental vegetation cover transformation, or of intensification of existing land ...Read more
Author:Tlotleng, Monnamme; Lengopeng, Thabo; Seerane, Mandy N; Pityana, Sisa LDate:Oct 2017Ti and its intermetallic alloys are light-weight and have good creep properties. Materials of this nature are desired for the manufacturing of parts for the aerospace, automotive and power plants. Titanium aluminides, in particular, are ...Read more