Author:Meintjies, AADate:1967The sensing element of the methanometer is a small hydrogen flame which burns in air at the tip of a metal jet. The electrical resistance of the hydrogen flame is extremely high and is decreased when an organic substance burns in it. The ...Read more
Author:Baumbach, JDate:Oct 2006Camouflage technology exists since 1979 at the CSIR. Spectral measurements of natural phenomena (leaves, bark, soil, rocks) were very difficult during the early days, and spectral measurements were performed on samples brought back from the ...Read more
Author:Das, Sonali; Hunter, LawranceDate:Feb 2015The objectives of this study are to develop an understanding of fabric quality related issues and research gaps relevant to apparel manufacturing and merchandising within the South African context. The specific focus is on fabric objective ...Read more
Author:Katumba, G; Olumekor, L; Forbes, A; Wackelgard, EDate:Jul 2006The investigation and development of carbon-silica composites has been going on for some time. Different applications such as adsorbents, biosensors, templates and solar absorbers have emanated from these studies. The concept of using solar ...Read more
Author:Chelopo, MP; Kalombo, Lonji; Wesley-Smith, J; Grobler, A; Hayeshi, RDate:Mar 2017The combination of polymeric nanoparticles (NPs) as a core and lipid vesicles as a shell has emerged to be a robust and promising drug delivery strategy. This study explores the development of a novel combined delivery system where poly d,l, ...Read more
Author:Mtibe, Asanda; Mokhothu, Thabang H; John, Maya J; Mokhena, Teboho C; Mochane, MJDate:Aug 2018In recent years, there has been growing demand of utilizing nanomaterials to develop new sustainable products. Nanomaterials offer unique extraordinary properties such as high surface area, eco-friendliness and good mechanical and physical ...Read more
Author:Dada, M; Popoola, P; Mathe, Ntombizodwa R; Pityana, Sisa L; Adeosun, A; Lengopeng, ThaboDate:Feb 2020Laser additive manufacturing is a direct energy deposition process which manufactures components from 3D model data in progressive layers until a whole part is built as opposed subtractive manufacturing. However, during the procedure, the ...Read more
Author:Mbanjwa, M; Chen, H; Fourie, L; Ngwenya, S; Land, KDate:Jun 2014Multiplexed or parallelised droplet microfluidic systems allow for increased throughput in the production of emulsions and microparticles, while maintaining a small footprint and utilising minimal ancillary equipment. The current paper ...Read more
Author:Mokoena, Teboho P; Hillie, Kenneth T; Swart, HC; Leshabane, N; Tshilongo, J; Motaung, DEDate:Oct 2020We report on the effect of the annealing temperature ramping rate on the gas sensing performance towards n-propanol gas and the luminescence properties using p-type NiO gas sensors prepared by the hydrothermal method and annealed at various ...Read more
Author:Madigoe, Mandy N; Modiba, Rosinah; Lesley, Cornish, LDate:Nov 2022The aim of this study was to produce a titanium-based alloy with mainly ß-phase and reduced Young’s modulus for biomedical applications. Alloys Ti-Nbx-Ta5-Zr5 (x = 20, 30, 40 at.%Nb) were prepared by arc melting then solution annealed at 950 ...Read more
Author:Mdletshe, Lindokuhle S; Makgwane, Peter R; Ray, Suprakas SDate:Aug 2019This study report on the synthesis of spinel CuFe2O4 nanostructures by surfactant-assisted method. The catalysts were characterized by X-ray diffraction (XRD), laser Raman, transition electron microscope (TEM), scanning electron microscope ...Read more
Author:Tile, NDate:Mar 2012High efficiency tandem selective solar absorber materials of carbon in nickel oxide (C-NiO) composite were fabricated on an aluminium substrate using a simple and cost effective sol-gel process. The process involved preparation of carbon and ...Read more
Author:Mavundla, SE; Malgas, GF; Motaung, DE; Iwuoha, EIDate:Apr 2012Flower-shaped zinc oxide (ZnO) structures have been synthesized in a microwave at 180 C for 20 minutes using zinc nitrate and KOH. Detailed structural and morphology observation showed that the micron-sized ZnO nano-pencils grow out of the ...Read more
Author:Roro, Kittessa TDate:Jul 2011This presentation explores solar thermal energy for harnessing solar energy for thermal energy (heat). Solar thermal collectors for water heating use a spectrally selective surface that absorb sunlight and convert it to heat. The presentation ...Read more
Author:Govindasamy, K; Potgieter, S; Land, K; Muzenda, EDate:Jul 2012This paper describes an inexpensive method of fabricating paper based microfluidic devices, a new point of care technology. The method uses a solid ink printer, chromatography paper and a heating source. The printer deposits wax onto the ...Read more
Author:Yalisi, B; Katumba, G; Forbes, A; Pillay, SRDate:Jun 2009Selective solar absorbers are devices that have been designed to absorb as much as possible of the solar radiation which is in the wavelength range of 0.3 to 2.5 µm and to minimise thermal emittance in the wavelength range from 2.5µm to the ...Read more
Author:Bayode, A; Akinlabi, ET; Pityana, Sisa LDate:Apr 2018Recent advancement in materials processing has resulted in the evolution of advance composite known as Functionally Graded Materials (FGMs). FGMs are multi-layered structures with composition and/or microstructure that vary spatially across ...Read more
Author:Malatjia, N; Popoola, API; Pityana, Sisa L; Lengopeng, TDate:Jun 2021Ti10Fe5Si5Cr3Nb composite coatings were fabricated using laser cladding technique. Laser power was varied from 800W to 1200W while the scanning speed was kept constant at 1.5 m/min. The microstructural analysis of the samples was conducted ...Read more