Author:Motlogeloa, O; Fitchett, JM; Sweijd, Neville ADate:Jan 2023The acute respiratory infectious disease season, or colloquially the “flu season”, is defined as the annually recurring period characterized by the prevalence of an outbreak of acute respiratory infectious diseases. It has been widely agreed ...Read more
Author:Vhahangwele, M; Mugera, GW; Tholiso, NDate:Nov 2014Al(sup3+)-bentonite clay (Alum-bent) was prepared by ion exchange of base cations on the matrices of bentonite clay. Intercalation of bentonite clay with Al(sup3+) was performed in batch experiments. Parameters optimized include time, dosage, ...Read more
Author:Gxowa, Zizo; Chown, LH; Govender, Sagren; Curle, UlyateDate:Oct 2016This work evaluates the deformation behaviour, at warm working temperatures, of green particle-reinforced aluminium composites produced by powder blending in a high-energy ball mill. The work focuses on metal matrix composites (MMCs) based ...Read morecb
Author:Louw, M; Reid, SJDate:May 1995A novel method has been developed for increasing the production of commercially valuable enzymes, such as proteases, beta-glucanases, alpha-amylases and levansucrase. It is dependent on two genes cloned from Bacillus brevis, expressed on a ...Read more
Author:Giri, S; Bhaumik, M; Das, R; Gupta, VK; Maity, ArjunDate:Mar 2016Dehalogenation of aryl halides was demonstrated using polyaniline/zero valent iron composite nanofiber (termed as PANI/Fe0) as a cheap, efficient and environmentally friendly heterogeneous catalyst. The catalyst was prepared via rapid mixing ...Read more
Author:Rademeyer, M; Van Heerden, FR; Van Der Merwe, MMDate:Jan 2009The three-ring eudesmanolide, C15H16O3, is a natural product isolated from Dicoma anomala Sond. (Asteraceae). The compound contains an endo-exo cross conjugated methylenecyclohexenone ring with an envelope conformation trans-fused with ...Read more
Author:Oyewobi, SS; Hancke, GP; Abu-Mahfouz, Adnan MI; Onumanyi, Adeiza JDate:Aug 2019Cognitive radio has emerged as an enabling technology in the realization of a spectrum-efficient and delay-sensitive industrial wireless communication where nodes are capable of responding in real-time. However, particularly for time-critical ...Read more
Author:Ledwaba, LPI; Hancke, GP; Mitrokotsa, A; Isaac, Sherrin JDate:Oct 2020Recently, work with Distributed Ledger Technologies (DLTs) has focussed on leveraging the decentralised, immutable ledger for use outside of cryptocurrency. One industry poised to benefit from DLTs is the Industrial Internet of Things (IIoT); ...Read more
Author:Shalin, S; Samuelsen, A; Korosov, A; Menon, N; Backeberg, Bjorn-Christoph; Pettersson, LHDate:Mar 2018The spatial and temporal variability of marine autotrophic abundance, expressed as chlorophyll concentration, is monitored from space and used to delineate the surface signature of marine ecosystem zones with distinct optical characteristics. ...Read more
Author:Grodner, MDate:Sep 2001The depth of mining in the gold mines of the Witwatersrand Basin, South Africa is continuously increasing, with several mines already stopping at depths exceeding 3500m. Due to the high stresses imposed on the rock mass in these deep level ...Read more
Author:Ampofo-Anti, NaalamkaiDate:Jul 2017This paper presents a project delivery model developed for use by public sector clients tasked with using innovative building technologies (IBTs) in lieu of conventional building technologies (CBTs) in the delivery of social infrastructure projects.Read more
Author:Wall, KDate:Feb 2006There is a great need for institutional innovations aimed at improving access to basic water services in South Africa, and sustaining that improvement. In support of effective delivery, the CSIR, with the support of the Water Research Commission, ...Read more
Author:Netshiluvhi, TRDate:Dec 1999Short-listing of medicinal tree species for propagation was done through three criteria; number of bags sold, price per bag and mean scarcity value. There is a strong correlation between the mean scarcity values and number of bags sold per ...Read more
Author:Ashton, PJDate:Jun 2010The water quality of almost all of South Africa’s river systems has worsened progressively as a result of increasing urbanization and industrialization; the adverse effects of poor water quality have been compounded by the operation of water ...Read more
Author:Lamprecht, TJ; Venter, CJ; Badenhorst, WDate:Nov 2005The paper describes a method for the modelling of demographic and economic change at a spatially disaggregate level that is compatible with the requirements of a conventional transport model. The method was developed and tested in the City ...Read more
Author:Naidoo, Darryl; Mafusire, C; Forbes, ADate:Jul 2009An optical aberration is a distortion of an image as compared to the object due to defects in an optical systemRead more
Author:Wall, K; Ive, O; Bhagwan, J; Kirwan, F; Birkholtz, W; Lupuwana, N; Shaylor, EDate:Aug 2013Having viewed the successful social franchising partnerships pilot programme that serviced sanitation facilities at 400 schools in the Butterworth District of the Eastern Cape of South Africa, the Amathole District Municipality (ADM) expressed ...Read more
Author:Wall, K; Ive, O; Bhagwan, J; Kirwan, F; Birkholtz, W; Lupuwana, N; Shaylor, EDate:Oct 2012Having viewed the successful social franchising partnerships pilot programme that serviced sanitation facilities at 400 schools in the Butterworth District of the Eastern Cape, the Amathole District Municipality (ADM) expressed interest in ...Read more