Author:Songo, Morongwa M; Moutloali, R; Ray, Suprakas SDate:Jan 2019A TiO2-Carbon (TiO2C) composite was prepared using the microwave-assisted method and sulfonated using fuming sulfuric acid to produce a TiO2C solid acid catalyst. The prepared solid acid catalyst was characterised using scanning electron ...Read more
Author:Oosthuizen, Salomon J; Swanepoel, Jaco JDate:Oct 2018South Africa is endowed with significant titanium-bearing reserves, which are concentrated to produce slag and exported as a low-value commodity, meeting about 20% of the global demand for the production of titanium dioxide pigment. Compared ...Read more
Author:Buyana, B; Aderibigbe, BA; Ray, Suprakash S; Ndinteh, DT; Fonkui, YTDate:Nov 2019Bacterial infections are serious complications associated with wounds. Wounds can become chronic due to bacterial infections. In this research, lyophilized wound dressings were prepared from poloxamer, pluronic, mastic gum, and gum acacia. ...Read more
Author:Maritz, Johan; Maponya, GDate:Aug 2010Rural environments suffer a number of constraints including high transport cost, irregular or unpredictable transport services, transport of low passenger and freight volumes, and low logistics service demand and supply. Rural residents, ...Read more
Author:Gueli, R; Liebenberg, FDate:Jun 2007Over the years, the functional gap between peacekeeping and peacebuilding (or 'post-conflict' reconstruction) has received a lot of attention because it remains a weakness in the policy framework of the United Nation (UN) conflict resolution ...Read more
Author:Yao, K; Zhenyu, M; Komba, JuliusDate:Jul 2021This book presents the advancements in the field of sustainable materials in pavement engineering and related geotechnical engineering issues and sheds light on recent developments and advancements in characterization, design, construction, ...Read more
Author:Black, WA; Maasdorp, APBDate:Jun 1984Since ancient times, man has attempted to reduce the flammability of combustible materials. For example, the Egyptians soaked wood in a solution of alum in an attempt to reduce its flammability, while the Romans dipped the material of their ...Read more
Author:Maasdorp, APB; Black, ADate:Jun 1984Significant progress in the field of flame retardancy of textiles, was first observed during the second World War, which saw an increase in the commercial use of durable flame retardants.Read more
Author:Lucia, O; Isong, B; Gasela, N; Abu-Mahfouz, Adnan MIDate:Nov 2019Internet of Things (IoT) is one of the most promising technologies and has wide spread application areas in the information technology for future products and services. Developments in IoT have given rise to device proliferation which in turn ...Read more
Author:Sevenster, PGDate:1964In this study of the physical properties of an inherently brittle material such as coal it is of interest to determine the effect of certain physical properties (such as porosity) on the strength of the substance.Read more
Author:Khumalo, N; Oyerinde, O; Mfupe, Luzango PDate:Sep 2019The fifth generation (5G) of wireless network ecosystem which is expected to be deployed in 2020 promises to provide higher speeds, higher capacity and lower latency than the current mobile networks. 5G also promises to revolutionise the ...Read more
Author:Wahab, OO; Olasunkanmi, LO; Govender, Krishna; Govender, PPDate:Dec 2018Previous experimental studies had proposed two possible mechanisms, that is, N-N or C-N bond cleavage, for azo dye degradation. However, the relative feasibility of these mechanisms based on their energetics has not been properly explored. ...Read more
Author:Kiarii, EM; Govender, Krishna; Mamo, MA; Govender, PPDate:Aug 2018Recently, two–dimensional WSe2 transition–metal dichalcogenides have been used for novel electronic devices. However, its influence on the electronic and optical properties of thermoelectric Skutterudite CoSb3 and In0.2Co4Sb12 is unknown. ...Read more
Author:Akintemi, EO; Govender, Krishna K; Singh, TDate:Feb 2022Density function theory calculations was used to determine the molecular parameters, electronic and chemical reactivity descriptors, spectroscopy, and non-linear optical properties, electronic dipole moment, polarizability and hyperpolarizability ...Read more
Author:Kiarii, EM; Govender, Krishna K; Mamo, MA; Govender, PPDate:Aug 2022Calculations of AgSbTe2 thermoelectric material and 2d CdS/TiS2 and their heterostructures were carried out using Density Functional Theory in Cambridge Serial Total Energy Package code as implemented in Material Studio 2018 software. The ...Read more
Author:Kiarii, EM; Govender, Krishna; Ndung'u, PG; Govender, PPDate:Aug 2017A first principles study of the Titania is done as used in photo-catalysis to generate charge carries. Models of titania, silica, graphene, epoxy graphene monoxide, single wall Carbon nanotubes and their respective layer were studied in order ...Read more
Author:Vilakazi, CB; Roux, P; Land, KDate:Oct 2015This presentation will focus on the development and implementation of innovative point-of-care diagnostic devices for low-resource settings. These include technologies such as the Umbiflow diagnostic device, which helps to optimise referrals ...Read more
Author:Khati, MDate:Aug 2013A lack of simple, rapid, accurate, and affordable point-of-care diagnostic tools tailored to detect active TB early enough for opportune intervention in high HIV and TB prevalence developing countries is one of defining public health problems ...Read more
Author:Sanchez-Rodrigues, V; Potter, A; Naim, MM; Schoeman, C; Greeff, SDate:Aug 2009Uncertainty can cause significant disruptions throughout supply chains. This paper focuses specifically on uncertainty within transport operations, an often neglected area within the literature. While the causes of uncertainty are documented, ...Read more
Author:Smith, Andrew CDate:Jan 2010This paper reports on a tangible programming system designed for the novice user in developing regions. The system integrates three open source tools with low cost hand-made hardware incorporating recycled material. The result is a simplistic ...Read more