Author:Van Wyk, JDate:Aug 1993The new South Africa needs information and the CSIR has enabled end-users to search international and local database using an intelligent gateway to provide easy, affordable access to all the well-known hosts. All terminals, Minerals and PCs ...Read more
Author:Dhonge, BP; Ray, Suprakas S; Mwakikunga, Bonex WDate:Apr 2017In this paper, we present the first experimental evidence for electronic to protonic conduction switching in p-type semiconducting nanostructured cuprous oxide Cu2O porous films when exposed to humidity. We also present a linear response at ...Read more
Author:Smollen, M; Kafaar, ADate:1994Owing to the inherent inefficiency of dewatering equipment widely used today, the search for improved dewatering techniques has been pursued by the investigation of new innovative ideas. The main thrust of these investigations has been in ...Read more
Author:Tsoeunyane, GM; Mathe, Ntombizodwa R; Tshabalala, Lerato C; Makhatha, MEDate:May 2022The reduction of surface roughness on additively manufactured components has become a critical factor in engineering applications. This paper reports the electropolishing of additively manufactured Ti-6Al-4V by powder bed selective laser ...Read more
Author:Mokhena, Teboho C; Mochane, MJ; Mtibe, Asanda; Mathew, Maya J; Sadiku, ER; Sefadi, JSDate:Feb 2020Alginate has been a material of choice for a spectrum of applications, ranging from metal adsorption to wound dressing. Electrospinning has added a new dimension to polymeric materials, including alginate, which can be processed to their ...Read more
Author:Mokhena, Teboho C; Jacobs, Nokwindla V; Luyt, ASDate:Mar 2017This paper reports on the potential of the electrospun alginate nanofibre membranes to be used for the bio-sorption of heavy metals from aqueous solutions. Poly(ethylene oxide) (PEO) and its blends were electrospun at an applied voltage of ...Read more
Author:Mokhena, Teboho C; Luyt, ASDate:Jun 2017Silver nanoparticles are amongst the most valuable nanoparticles with interesting properties, such as a non-toxic nature and high antibacterial efficiency, making them applicable for tissue scaffold, protective clothing and wound dressing. ...Read more
Author:Jacobs, V; Patanaik, A; Anandjiwala, RDDate:2010Electrospinning is a straightforward and versatile technique for fabrication of nanofibres from a variety of polymer solutions.Nanofibers with high surface area to volume ratio, high porosity and small fiber diameter make them ideal materials ...Read more
Author:Naseria, N; Algana, C; Jacobs, V; John, Maya J; Oksmana, K; Mathew, APDate:Aug 2014The aim of this study was to develop electrospun chitosan/polyethylene oxide-based randomly oriented fiber mats reinforced with chitin nanocrystals (ChNC) for wound dressing. Microscopy studies showedporous mats of smooth and beadless fibers ...Read more
Author:Neppalli, R; Marega, C; Marigo, A; Bajgai, MP; Kim, HY; Ray, Suprakas S; Causina, VDate:May 2012Poly(lactide) (PLA) composites filled with electrospun nylon 6 fibers were prepared. This allowed us to simultaneously improve the mechanical properties and tune the degradation of the PLA matrix. The interfacial adhesion between the PLA ...Read more
Author:Selatile, Mantsopa K; Mural, PKS; Ray, Suprakas SDate:Oct 2018The present chapter gives an overview of the electrospinning process for producing nanofibers and developments in their application as polymer nanocomposites. Firstly, the electrospinning parameters (solution and process conditions), along ...Read more
Author:Adekunle, AS; Ozoemena, KIDate:Jul 2011Supercapacitive properties of single-walled carbon nanotubes/metal oxides nanocomposites (SWCNT-MO where M=Ni, Fe, Co) have been described. The SWCNT-MO nanocomposites was confirmed with SEM, EDX and XPS techniques. Supercapacitive properties ...Read more
Author:Van Vuuren, DS; Engelbrecht, AD; Hadley, TDDate:Oct 2005The value chain of titanium products shows that the difference between the cost of titanium ingot and titanium dioxide is about $9/kg titanium. In contrast, the price of aluminium, which is produced in a similar way, is only about $1.7/kg. ...Read more
Author:Du Plessis, WP; Kitching, C; Bin Ghannam, ADate:Mar 2012The effect of allowing shared elements in interleaved thinned arrays is investigated. The sidelobe level (SLL) as a function of the number of shared elements mirrors the SLL of thinned arrays as a function of filling factor because the number ...Read more
Author:Scholes, RJ; Mennell, KDate:2008As a conse quence of the rising number of elephants in protected areas in South Africa, the ecosystems that contain elephants and the people that live adjacent to elephant populations are perceived to be coming under increasing threat. The ...Read more
Author:Endah, R; Beyene, G; Kiggundu, A; Van den Berg, N; Schlüter, U; Kunert, K; Chikwamba, Rachel KDate:Nov 2008NPR1 is an essential positive regulator of salicylic acid-induced PR gene expression and systemic acquired resistance. Two novel full-length NPR1-like genes; MNPR1A and MNPR1B, were isolated by application of the PCR and RACE techniques. The ...Read more
Author:Nortje, Karen; Musvoto, Constansia D; Murambadoro, MDate:Aug 2011On 29 August and 01 September 2011 the Council for Scientific and Industrial Research (CSIR) in conjunction with Nkuzi Development Association held two workshops with local stakeholders in the case study area of Elim and surrounds. These ...Read more
Author:Mokonyama, Mathetha TDate:Nov 2012This chapter interrogates some empirical data to examine some of the contributory causes of EBS in South Africa, and uses the City of Johannesburg as a case study. The daily travel patterns of car users are analysed within the context of how ...Read more