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
Author:Zulu, N; Barnard, EDate:Nov 2006This paper describes ongoing work in which the main objective is to quantitatively determine the linguistic distances between languages and dialects. The Levenshtein distance measure is applied to orthographic and phonetic transcriptions of ...Read more
Author:Ndwe, TJ; Sharma, Ameeth; Kgampe, M; Kuun, CDate:Nov 2008Skilful dialogue design in an interactive voice response system has facilitated the effective use of a telephone-based health information syatem ny caregivers to HIV/AIDS-infected childern in Botswana. The intended users, caregivers, can ...Read more
Author:Wellington, Kevin W; Steenkamp, P; Brady, DDate:Feb 2010Nuclear diamination of p-hydrobenzoquinones with aromatic and aliphatic primary amines was catalyzed by a immobilised commercial laccase, Denilite II Base, from Novozymes. The amine and the p-hydrobenzoquinone was reacted under mild conditions ...Read more
Author:Matroko, X; Mniki, N; Van Deventer, Martha JDate:May 2008The Council for Scientific and Industrial Research (CSIR) is a publicly funded entity and is required by law to ensure that records produced as a result of various business transactions, internally and externally, are managed in a way that ...Read more
Author:Kapwata, T; Mathee, A; Le Roux, Wouter J; Wright, CYDate:Aug 2018Diarrhoeal disease is a significant contributor to child morbidity and mortality, particularly in the developing world. Poor sanitation, a lack of personal hygiene and inadequate water supplies are known risk factors for diarrhoeal disease. ...Read more
Author:Schoeman, FR; Archibald, REM; Ashton, PJDate:12 Mar 1984This is the third and final contribution on the diatom flora recorded in the vicinity of the pretoria salt pan. In the taxonomic section notes and illustrations (light and electron microscopy) are given for 19 of the 35 listed species.Read more
Author:Schoeman, FR; Archibald, REMDate:Sep 1977The authors in their various issues aim at describing twenty species in each issue. Failure to achieve this aim is due, partly to the short intervals between the issue dates, but more specifically to all the work involved in ensuring the ...Read more
Author:Riato, L; Della Bella, V; Leira, M; Taylor, JV; Oberholster, Paul JDate:Jul 2017Functional-based assessments to identify the effects of human-induced disturbances on diatom communities are increasingly used. However, information on the response of functional groups to natural disturbances in temporary depressional wetlands ...Read more
Author:Riato, L; Leira, M; Della Bella, V; Oberholster, Paul JDate:Aug 2017Information on the response of temporary depressional wetland diatoms to human-induced disturbances is a limited and important component for the development of temporary wetland biological assessments in human-modified landscapes. Establishing ...Read more
Author:Archibald, REMDate:1971The Vaal Dam is of great importance to South Africa as it ensures a good supply of water to the Witwatersrand complex, South Africans most important industrial and mining centre, and the problem of pollution and protection of the waters flowing ...Read more
Author:Schoeman, FRDate:1982Durring the year 1972 to 1975 samples of benthic algae were collected from 22 selected river stations in the Juskei-Crocodile river system. Some 250 diatoms taxa were identified from these samplesRead more