Author:De Beer, Morris; Van Heerden, ADate:Nov 2016The demands faced by those who work within a military context require individuals to cope with difficult and challenging circumstances – physically, cognitively, emotionally and socially. Thus the understanding and measurement of resilience ...Read more
Author:Singh, M; Kijko, A; Durrheim, RDate:Oct 2011A first-order seismotectonic model was created for South Africa. This was done using four logical steps: geoscientific data collection, characterisation, assimilation and zonation. Through the definition of subunits of concentrations of ...Read more
Author:Phasha, MJ; Bolokang, Amogelang S; Kebede, Mesfin ADate:Feb 2021Density-functional theory (DFT) based first-principles calculations were used to investigate the crystal structure, binding energy, phase stability and elastic properties of body-centered cubic (BCC) W-based binary solid solutions. The effect ...Read more
Author:Kiarii, EM; Govender, Krishna; Mamo, MA; Govender, PPDate:Oct 2018The world reliance on non-renewable and depleted energy resources has made the search for renewable and sustainable energy more significant. However, a theoretical study is necessary to give a more elaborate investigation of the electronic ...Read more
Author:Smith, Marie EDate:Oct 2022Presentation on the environmental overview, Earth Observation Product Development and National and regional initiatives supporting fisheries-National Oceans and Coastal Information Management System (OCIMS)-Marine and Coastal Operations for ...Read more
Author:Zwane, PEL; Magagula, NDate:Oct 2005The four body types are the: Hourglass/ideal body shape, triangular/pear/bottom heavy shape, and rectangular body shapes. An individual with an hourglass is regarded as having a proportionate figure, whereby the girth measurements (bust, waist ...Read more
Author:Schreiner, Gregory ODate:Aug 2021The disciplinary domains known as ‘Impact Assessment’ and ‘Scientific Assessment’ occupy fairly similar spaces at the contemporary Science-Policy Interface. At their essences, both concern themselves with providing the evidence-base to support ...Read more
Author:Sprovieri, F; Pirrone, N; Bencardino, M; D'Amore, F; Angot, H; Walters, Chavon RDate:Feb 2017The atmospheric deposition of mercury (Hg) occurs via several mechanisms, including dry and wet scavenging by precipitation events. In an effort to understand the atmospheric cycling and seasonal depositional characteristics of Hg, wet ...Read more
Author:Erasmus, TCDate:1965Flame propagation in pulverized coal-air-mixtures may be studies by placing an ignition source in a pulverized-coal-air-stream. The fuel-air-mixture is ignites at the source and the flame propagates laterally into the stream to form a conical flame.Read more
Author:Molaba, TP; Chapple, Stephen A; John, Maya JDate:Jan 2018In this study, flax composites were prepared from flax fabric and phenolic resin. Chemical treatments were imparted to the fabric to improve adhesion between the fabric and the phenolic matrix. Diammonium phosphate was applied to improve the ...Read more
Author:Mwakikunga, Bonex W; Mudau, AE; Brink, N; Willers, Cornelius JDate:Sep 2011We observe the “invisible-to-the- naked-eye” flames of tungsten and vanadium ethoxide aerosols when ignited at moderate laser excitation (0 < Plaser< 70 W) by employing an IR thermo-graphic camera. No emission is seen in the visible range ...Read more
Author:John, Maya JDate:2019Bio-based products have been used in the packaging sector and now there has been a considerable growth in the use of biocomposites in transport (automotive and aerospace) and electronics sector. However, it is imperative that components used ...Read more
Author:Omolo, JJ; Maharaj, V; Naidoo, Dashnie; Malebo, HM; Mtullu, S; Lyaruu, HVM; Koning, CBDate:2014Phytochemical investigation of the stem and bark of Steganotaenia araliacea led to the isolation of two flavonoids. The structures of these compounds were identified as apigenin 4'-glucoside 1 and sophoraflavone B 2 using spectroscopic analysis ...Read more
Author:Kumar, R; Anandjiwala, RDDate:May 2012Biocomposites were successfully prepared by the reinforcement of soy protein isolate (SPI) with different weight fractions of woven flax fabric. The flax-fabric-reinforced SPI-based composites were then arylated with 2,2-diphenyl-2-hydroxyethanoic ...Read more
Author:Kumar, R; Anandjiwala, RDate:May 2011Natural fibers are used as reinforcement material for number of thermoplastic/thermoset polymers. The interest in using polylactic acid (PLA) as thermoplastic matrix to produce composites completely from 100% renewable resources has increased ...Read more
Author:Kumar, R; Anandjiwala, RDate:Sep 2009Water insoluble poly(furfuryl alcohol) (PFA) is an unexplored thermosetting resin which is synthesized from water-soluble furfuryl alcohol (FA). Commercially available FA has very low viscosity (6.9-7.0 cts at 25°C) and it is obtained from ...Read more
Author:Focke, WW; Muiambo, H; Mhike, W; Kruger, HJ; Ofosu, ODate:Feb 2014The utility of expandable graphite as a flame retardant for PVC, plasticized with 60 phr of a phosphate ester, was investigated. Cone calorimeter results, at a radiant flux of 35 kW m 2, revealed that adding only 5 wt.% expandable graphite ...Read more
Author:Cogan, D; Griffith, Derek J; Magidimisha, Edwin; Van Zyl, RDate:Oct 2018With the launch of the ZACube-2 nanosatellite, a new technique of wildfire detection and monitoring from space will be evaluated. Potassium is an essential plant macronutrient and all vegetation biomass fires exhibit characteristic spectral ...Read more
Author:White, WJ; Barker, D; Sutherland, ADate:Apr 2013The hazards involved in taking an aircraft from concept design to first flight are not fully comprehended by non-flight test qualified pilots. The FAA published and Aeronautical Circular with basic guidelines. This work was expanded to cater ...Read more
Author:Barker, DDate:Sep 2015Des Barker test flies the turbopropconverted FOCKE WULF PIAGGIO P149D-TP This flight test report presents a limited overview of some of the results of the flight test programme conducted on the Piaggio P149D TP aircraft in support of an ...Read more