Author:Haldar, I; Biswas, M; Nayak, A; Ray, Suprakas SDate:Oct 2012Poly(N-vinyl carbazole) (PNVC) and polypyrrole (PPY)-montmorillonite (MMT) clay hybrids were prepared by mechanical grinding of the respective monomers with MMT followed by subsequent standard processing methods. Fourier transform infrared ...Read more
Author:Haldar, I; Biswas, M; Nayak, A; Ray, Suprakas SDate:Oct 2012Poly(N-vinyl carbazole) (PNVC) and polypyrrole (PPY)-montmorillonite (MMT) clay hybrids were prepared by mechanical grinding of the respective monomers with MMT followed by subsequent standard processing methods. Fourier transform infrared ...Read more
Author:Gcwabaza, T; Suprakas, SR; Focke, WWDate:Oct 2008Forming a polymer blend is a convenient method for obtaining materials with improves property performance. However, most chemically different polymers are immiscible and their blending leads to a material with weak interfacial adhesion and ...Read more
Author:Ogunniran, ES; Sadiku, R; Ray, SS; Luruli, NDate:Dec 2011Boehmite alumina nanoparticles are added to PP-g-MAH-compatibilized blends of PA 12 and PP to study the effects of nanoparticle loading in the resulting composites. WAXD and SEM data suggest that the nanoparticles enhanced the coalescence of ...Read more
Author:Adegbola, TA; Rotimi, SE; Suprakas, Sinha RDate:Apr 2016The compounding of rPAN/PET [polyacrylonitrile/poly(ethylene terephthalate]; 30/70, 50/50, and 70/30 wt %) using a melt-blending technique was the main focus of this investigation. An X-ray diffraction study indicated the possibility of ...Read more
Author:Mavuso, MA; Makgwane, Peter R; Ray, Suprakash SDate:Nov 2020The effective Ce3+/Ce4+ redox and oxygen mobility of CeO2 induced by tunable nanostructure morphology has attracted a great interest in photocatalytic organic synthesis. Herein, we report on the microwave‐assisted synthesis of CeO2 with ...Read more
Author:Mngomezulu, ME; Luyt, AS; Mathew, Maya JDate:Dec 2017This work reports on the effect of expandable graphite (EG) on the morphology, thermal and dynamic mechanical properties of flame retardant poly(lactic acid) (PLA)/EG composites. The composites were prepared by melt-mixing and their structure, ...Read more
Author:Wokadala, OC; Ray, SS; Bandyopadhyay, J; Wesley-Smith, J; Emmambux, NMDate:Aug 2015Polylactide/butylated-starch/nanoclay (70/25.5/4.5 wt%) composites were prepared by melt blending with nanoclays of varying hydrophobicity. Electron microscopy studies indicated that the interphase boundary interaction was highest in the clay ...Read more
Author:Marais, Laurette; Wilken, IlanaDate:Nov 2021Research attempting to describe and quantify the differences between spoken and written language has been done for languages such as English, but not for isiZulu. In this paper, we present a quantitative investigation into such differences ...Read more
Author:Loedolff, C.JDate:20 Jan 2011The use of oxidation pounds (or sewage lagoons) by small communities as a system of sewage purification has been provisionally accepted in Southern Africa for many reason, the most important being the low cost when compared with the conventional ...Read more
Author:Veerasamy, Namosha; Eloff, JHPDate:Jun 2010Individual users and organisations need to be warned about the latest face of warfare that is not only being played out in the military networks, but also on the Internet and cyberspace. Consequently, Network Warfare has various facets which ...Read more
Author:Veerasamy, NamoshaDate:Aug 2010Cyberterrorism represents the convergence of the virtual world of cyberspace and the intimidation techniques of terrorism. To better understand why cyber terrorist acts are committed, this paper investigates the motivation behind terrorism ...Read more
Author:Steyn, WJVDate:Nov 2004This paper focus on the general guidelines regarding maximum unevenness from bridge deck joints for typical South African heavy vehicles, in order to minimize the generation of moving variable loads. In a recent investigation it was found ...Read more
Author:Smith, SimoneDate:Jan 2021The chapter is centred around the core of Blue Economy and the disciplines that may support the Blue Economy activities as an attempt to indicate the direct and indirect impacts the Blue Economy activities and the disciplines that supports ...Read more
Author:Swart, I; Irwin, B; Grobler, MDate:Mar 2015A proliferation of cyber security strategies have recently been published around the world with as many as thirty five strategies documented since 2009. These published strategies indicate the growing need to obtain a clear view of a country’s ...Read more
Author:Claessens, R; De Waal, A; De Villiers, P; Penders, A; Pavlin, G; Tuyls, KDate:May 2015The proposed framework for Multi-Agent Target Tracking supports i) tracking of objects and ii) search and rescue based on the fusion of very heterogeneous data. The system is based on a novel approach to fusing sensory observations, intelligence ...Read more
Author:Brown, K; Bradshaw, KDate:May 2016The lack of multi-biometric fusion guidelines at the feature-level are addressed in this work. A feature-fusion framework is geared toward improving human identification accuracy for both single and multiple biometrics. The foundation of the ...Read more
Author:Van der Merwe, JR; Malan, J; Maasdorp, FDV; Du Plessis, WPDate:Sep 2014Multi-channel software-defined radios (SDRs) can be utilised as inexpensive prototyping platforms for transceiver arrays. The application for multi-channel prototyping is discussed and measured results of coherent channels for both receiver ...Read more