Author:Joubert, G; Barnard, EDate:Nov 2005The authors describe a system, based on open-source tools, that was developed in order to study the effect of network degenerations in Voice-over-Internet-Protocol applications on speech-recognition accuracy. Sophisticated play-out algorithms ...Read more
Author:Kunjuzwa, Niki; Kebede, Mesfin A; Mathe, Mahlanyane K; Modibedi, Remegia MDate:May 2019A comparative study was carried out with the effect of nickel precursors on the electrochemical performance of spinel LiMn2−x Ni x O4 (x = 0, 0.1 and 0.2) cathode materials. The spinel materials were prepared by employing a low temperature ...Read more
Author:Cawse K; Robin A; Sears MDate:Jun 2011Determining the intrinsic dimension of a hyperspectral image is an important step in the spectral unmixing process, and under- or over- estimation of this number may lead to incorrect unmixing for unsupervised methods. It is known that most ...Read more
Author:Mhlabeni, Thobile L; Kesavan Pillai, Sreejarani; Ray, Suprakas SDate:Nov 2019In this study, poly(lactic acid) (PLA)/poly[(butylene succinate)-co-adipate] (PBSA) blend and its nanocomposites with layered double hydroxides (LDH) containing surface stearic acid functional groups (SaLDH) were prepared using the extrusion ...Read more
Author:Bandyopadhyay, J; Ray, SS; Bousmina, MDate:Aug 2007The preparation and thermal and thermo-mechanical properties of nanocomposites based on liquid-crystalline polymers (LCP) and organically-modified layered silicate (OMLS) is described. From XRD patterns, very little smectic ordering is present ...Read more
Author:Mohlala, M; Modibedi, Remegia M; Mathe, Mahlanyane KDate:Nov 2007In polymer electrolyte membrane fuel cell (PEMFC), platinum is recognized to be the most active metal for methanol oxidation, however there is a strong CO adsorption tendency, which blocks the surface for further methanol adsorption and leads ...Read more
Author:Mutombo, K; Rossouw, PDate:Oct 2011Ti6Al4V alloy interacted with yttria fully stabilized zirconia face-coat to generate the alpha-case layer during the investment casting. The alpha-case mainly contained Al2O3, TiO2, TiO0.48, VO2, ZrO2 and Ti2ZrAl as revealed by the Energy ...Read more
Author:Adedeji, KB; Hamam, Y; Abe, BT; Abu-Mahfouz, Adnan MIDate:Jul 2018The battle of background leakage estimate (BLE) in water supply networks has been the subject of discussion in the last years. This paper aims to investigate the effect of pipe materials with particular reference to their impact on the BLE ...Read more
Author:De Beer, Morris; Horak, EDate:1987Most of the structural failures in road pavements are in one way or another associated with excess water trapped within the pavement structure owing to poor drainage. The combined effect of traffic loading and trapped water within the pavement ...Read more
Author:Erinosho, MF; Akinlabi, ET; Pityana, Sisa LDate:May 2016This paper reports the effect of powder density variation on the premixed Ti-6Al-4V/Cu and Ti-6A-4V/2Cu Composites. Two sets of experiment were conducted in this study. Five deposits each were made for the two premixed composites. Laser powers ...Read more
Author:Aramide, B; Sadiku, R; Popoola, P; Pityana, Sisa L; Jamiru, TDate:Feb 2022Steel utilized in mining and tillage devices is highly susceptible to wear and corrosion attacks due to its poor tribological property when presented to unfavorable working conditions common to mining and tillage activities. This leads to an ...Read more
Author:Akhter, R; Ivanchev, L; Burger, HPDate:Feb 2007Aluminium alloy A356 was treated by the Rheo semi solid metal (SSM) process, developed recently by CSIR-Pretoria, and cast in plates using a high pressure die casting (HPDC) machine. Plates in as cast condition (F) and heat treated T6 condition ...Read more
Author:Moloto, N; Revaprasadu, N; Musetha, PL; Moloto, MJDate:2008A novel ligand to the synthesis of nanoparticles has been employed in this study. A Tetramethylthiuram disulphide cadmium complex (abundant in sulphur atoms) was used as a single-source precursor for the synthesis of CdS nanoparticles. The ...Read more
Author:Muller, EFEDate:1963The aim of this investigation is to examine at least two other coking coals which, however, differ appreciably in their coking properties as determined in the laboratory.Read more
Author:Phasha, MJ; Kasonde, M; Ngoepe, PEDate:Nov 2008The CSIR is exploring options of mixing titanuim with lighter metal elements such as magnesium and aluminium to help decrease energy consumption. Titanium and its alloys are very important materials from both technological and scientific point ...Read more
Author:Machio, Christopher N; Chikwanda, HK; Chikosha, SDate:Oct 2010This article reports results of a study to determine the effect of process control agent (PCA) on the characteristics of Ti-Mg powders during milling. It has been shown that a 2% increase in PCA content leads to up to a 40% increase in yield ...Read more