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
Author:Cevik, T; Cevik, N; Rasheed, J; Abu-Mahfouz, Adnan MI; Osnan, ODate:May 2023Many face-recognition (FR) methods have been proposed thus far. Although FR has achieved wisdom in square pixel-based image processing (SIP) due to many studies, this wisdom has not been transferred to Hexagonal pixel-based image processing ...Read more
Author:Fashedemi, OO; Ozoemena, KIDate:Jul 2011A facile method has been utilized to synthesize ahydrophobic form of nano-scaled iron (II) tetrasulfophthalocyanine (nanoFeTSPc), integrated with functionalized multi-walled carbon nanotubes (fMWCNT-nanoFeTSPc). The nanocomposite was characterized ...Read more
Author:Ou, T; Chen, H; Hu, B; Zheng, Haitao; Li, W; Wang, YDate:Jul 2018A facile method has been suggested for the preparation of poly [2,20-(p-oxydiphenylene)-5,50-benzimidazole] (OPBI) membrane that comprises of dense and porous layers for high temperature proton exchange membrane fuel cells (HT-PEMFCs). The ...Read more
Author:Hajra, P; Kundu, S; Maity, Arjun; Bhattacharya, CDate:Oct 2019In this study, the organic solvent free ‘green synthesis’ of bismuth vanadate (BiVO4) has been described for its application in photoelectrochemical (PEC) water oxidation. BiVO4 thin films were successfully prepared through electrodeposition ...Read more
Author:Palaniyandy, Nithyadharseni; Rambau, Khavharendwe MA; Musyoka, Nicholas; Ren, JianweiDate:Apr 2020Due to its three-dimensional tunnel structure, the spinel LiMn2[sub]O4[sub] (LMO) cathode material is highly favourable for the migration of lithium ions. Thus, LMO has been used as a commercial cathode material for the electronic devices ...Read more
Author:Palaniyandy, Nithyadharseni; Rambau, Khavharendwe MA; Musyoka, Nicholas M; Ren, JianweiDate:Apr 2020Due to its three-dimensional tunnel structure, the spinel LiMn2O4 (LMO) cathode material is highly favourable for the migration of lithium ions. Thus, LMO has been used as a commercial cathode material for the electronic devices such as mobile ...Read more
Author:Tshabalala, Zamaswazi P; Motaung, David E; Mhlongo, Gugu H; Ntwaeborwa, OMDate:Mar 2016TiO2 nanoparticles were synthesized via a simple hydrothermal method in a sodium hydroxide (NaOH) aqueous solution and washed with distilled water and different concentrations of hydrochloric acid which acted as the morphological/crystallographic ...Read more
Author:Tshabalala, Zamaswazi P; Motaung, David E; Mhlongo, Gugu H; Ntwaeborwa, OMDate:Mar 2016TiO(sub2) nanoparticles were synthesized via a simple hydrothermal method in a sodium hydroxide (NaOH) aqueous solution and washed with distilled water and different concentrations of hydrochloric acid which acted as the morphological/cryst ...Read more
Author:Nwanya, AC; Obi, D; Ozoemena, Kenneth I; Osuji, RU; Awada, CDate:Apr 2016We describe the chemical synthesis of binderless and surfactant free CuO films for pseudocapacitive applications. Nanosheet-like and nanorod-like CuO films are deposited on indium tin oxide (ITO) substrates using the successive ionic layer ...Read more
Author:Senthil, RA; Priya, A; Theerthagiri, J; Selvi, A; Palaniyandy, Nithyadharseni; Madhavan, JDate:Nov 2018The influence of hematite iron oxide (α-Fe2O3) nanoparticles in tungsten oxide (WO3) nanorods photocatalyst on photodegradation of organic pollutant was investigated in the present work. The spherical-shaped α-Fe2O3 nanoparticles and WO3 ...Read more
Author:Matyila, M; Botha, Adèle; Sibiya, GDate:Nov 2016The challenge that low-literate users face when using text intensive artefacts is well documented. The barrier to entry and participation by these users to some socio-economic activities is exacerbated by current mobile phones which provide ...Read more