Author:Matsebe, ODate:Nov 2008SLAM is the process by which a robot builds a map of the environment and concurrently localise its position within the map. Solving this problem will render the robot truly autonomousRead more
Author:Maina, JW; Fujinami, K; Matsui, K; Inoue, TDate:Aug 2006Contact stresses at the tire/pavement interface for a stationary or rolling wheel comprise not only of vertical stress compounds but also centripetal stress as well. In this research, wheel load in the form of conically distributed centripetal ...Read more
Author:Isaac, NithinDate:Jan 2020Electric vehicles are being promoted world-wide by governments to reduce dependence on oil and to mitigate greenhouse gas emissions. In addition to barriers to entry such as the cost of the new technology, convenience, and the availability ...Read more
Author:Kebede, Mesfin A; Palaniyandy, Nithyadharseni; Ramadan, RM; Sheha, EDate:Feb 2018A V2O5 anode material significantly challenged on its further development to be used in lithium ion batteries in-terms of its structural degradation, poor cyclability and low conductivity. Thus researchers started to work on composite matrix ...Read more
Author:Govender, M; Mwakikunga, Bonex W; Machatine, AGJ; Kunert, HWDate:Feb 2014Laser pyrolysis was chosen to synthesize tungsten trioxide starting with tungsten ethoxide precursor. The film was found to have a thickness that varied from 205 nm to 1 µm. X-ray diffraction and Raman spectroscopy confirmed the presence of ...Read more
Author:Krug, T; Botha, L; Shamba, P; Baisitse, TR; Venter, A; Engelbrecht, JAA; Botha, JRDate:2006Strong surface inversion usually leads to deceptive Hall measurements by reflecting typical n-type behaviour for p-type samples, especially at very low doping concentrations. A two-layer model is presented which can potentially be used to ...Read more
Author:La Grange, JH; La Grange, CCDate:1971The electrically powered car, on the other hand, not only causes no air pollution, but is also silent and requires little attention and maintenance. In addition, electric power distributors throughout the world should welcome the use of off ...Read more
Author:Dada, M; Popoola, P; Mathe, Ntombizodwa R; Pityana, Sisa L; Adeosun, SDate:Sep 2022In this study, AlCoCrFeNi–Cu (Cu-based) and AlCoCrFeNi–Ti (Ti-based) high entropy alloys (HEAs) were fabricated using a direct blown powder technique via laser additive manufacturing on an A301 steel baseplate for aerospace applications. The ...Read more
Author:Scriba, Manfred R; Britton, DT; Härting, MDate:May 2011Doped silicon nanoparticles have successfully been produced by hot wire thermal catalytic pyrolysis at 40 mbar and a filament temperature of 1800 °C, using a mixture of silane and diborane or phosphine. All particles are monocrystalline with ...Read more
Author:Senatla, Mamahloko; Nchake, M; Taele, BM; Hapazari, IDate:Sep 2018This study aims to produce a research-based integrated electricity expansion plan for Lesotho that focuses on the security of supply at national level. The Autoregressive Integrated Moving Average (ARIMA) is used to model electrical demand ...Read more
Author:Khuluse, SDate:Feb 2009The objective of the study is to forecast national electricity demand patterns for a period of twenty years: total annual consumption and understanding seasonal effects. No constraint on the supply of electricity was assumedRead more
Author:Spalding-Fecher, R; Senatla, Mamahloko; Yamba, F; Lukwesa, B; Himunzowa, GDate:Feb 2017The study presents long-term electricity supply and demand scenarios for the twelve countries in the Southern African Power Pool, based on detailed bottom-up demand analysis for all countries and a set of internally consistent development ...Read more
Author:Modibedi, Remegia M; Louw, E; Mathe, Mahlanyane K; Ozoemena, KDate:Mar 2013Fuel cells continue to be investigated as alternative energy source because of the high energy demand worldwide. The electrocatalytic reduction of oxygen is of great importance in fuel cells and sensors. Noble metals have proved to be the ...Read more
Author:Mkhohlakali, A; Fuku, X; Seo, MH; Modibedi, Remegia M; Khotseng, L; Mathe, MDate:Oct 2022An alternative electrosynthesis of PdTe, using the electrochemical atomic layer deposition (E-ALD) method, is reported. The cyclic voltammetry technique was used to analyze Au substrate in copper (Cu2+), and a tellurous (Te4+) solution was ...Read more
Author:Emej, IC; Ama, OM; Khoele, K; Osifo, PO; Ray, Suprakash SDate:Mar 2021Human immunodeficiency virus (HIV) and acquired immune deficiency syndrome (AIDS) causes morbidity and mortality in infected patients. These epidemics are significantly reduced and treated globally with antiretroviral drugs (ARVDs). However, ...Read more
Author:Schoeman, JJ; van Staden, JFDate:20 Aug 1997Electro-osmotic pumping (EOP) theory and its characteristics (transport numbers, brine concentration, current density, current efficiency, electro-osmotic coefficients, etc.) of Selemion AMV and CMV ion-exchange membranes were studied. The ...Read more
Author:Maumau, Thandiwe R; Modibedi, Remegia M; Mathe, Mahlanyane KDate:May 2018Mono and binary Pd-Au based catalysts were synthesized using the NaBH4 assisted ethylene glycol reduction method. The catalysts were supported on Vulcan XC 72 carbon black and denoted as Pd/C, Au/C, Pd(Au/C) and Pd-Au/C co-reduction. Pd:Au ...Read more
Author:Fashedemi, OO; Miller, HA; Marchionni, A; Vizza, F; Ozoemena, KIDate:Apr 2015Half-cell reactions and alkaline direct ethylene glycol and glycerol fuel cells (DEGFC and DGFC) have been studied on Pd-based ternary core–shell (FeCo@Fe@Pd) nanocatalyst using multi-walled carbon nanotubes bearing carboxylic (MWCNT-COOH) ...Read more
Author:Maxakato, NW; Ozoemena, KI; Arendse, CJDate:2008Fuel Cells (FC) employing methanol are extremely attractive as power sources for portable applications. One of the keys to the development of FC is to find a new and improved electrocatalyst. During methanol electro-oxidation on platinum (Pt) ...Read more