Author:Mathomu, LM; Myer, MS; Kenyon, CPDate:01 Sep 2010Efforts are underway to produce transgenic pigs as source of organ transplants, transgenic fish for food, and transgenic livestock that are resistant to many animal diseases and can survive harsh environmental conditions. Nguni breed of cattle ...Read more
Author:Miyambo, M; Pandelani, Thanyani ADate:Oct 2012The Mechanical Deflection Sensor (MDS) is used to measure the simulated positive
dynamic deformation of a blast plate, when it
is impacted by a spring powered Lower Limb
Impactor (LLI) plate.Read more
Author:Snedden, Glen C; Roos, TH; Dunn, Dwain I; Gregory-Smith, DDate:Sep 2007This paper describes the results, to date, of collaboration between the CSIR (South Africa) and Durham University (UK). Furthermore the paper intends to demonstrate the capability and suitability of a refurbished 1½ stage turbine test rig to ...Read more
Author:Mafusire, C; Forbes, A; Snedden, Glen C; Michaelis, MMDate:2007A heated horizontal spinning pipe causes gases inside it to assume dynamics resulting in a graded index lens – a spinning pipe gas lens (SPGL). A CFD model is presented which shows that gas exchanges of the SPGL with the surroundings resulting ...Read more
Author:Schneider, F; Draheim, J; Brunne, J; Waibel, P; Wallrabe, UDate:Sep 2009In this paper the auhtors compare the performance and optical quality of two types of adaptive fluidic silicone-membrane lenses. The membranes feature either a homogeneous thickness, or they are shaped resulting in an inhomogeneous cross-section. ...Read more
Author:Schneider, F; Draheim, J; Brunne, J; Waibel, P; Wallrabe, UDate:Mar 2010The authors compare the performance and optical quality of two types of adaptive fluidic silicone-membrane lenses. The membranes feature either a homogeneous thickness, or they are shaped resulting in an inhomogeneous cross-section. The lens ...Read more
Author:Madende, M; Kemp, G; Stoychev, Stoyan H; Osthoff, GDate:Oct 2018Copyright: 2018 Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website.Read more
Author:Oboirien, BO; Engelbrecht, AD; North, Brian C; Du Cann, VM; Falcon, RDate:Mar 2009There is currently a gap in the understanding of the morphological transformations experienced by high ash and intertinite-rich coals undergoing conversion to char during atmospheric gasification. In this study, work has been carried to ...Read more
Author:Lehutso, Raisibe F; Tancu, Yolanda; Maity, Arjun; Thwala, MelusiDate:Mar 2021Analytical limitations have constrained the determination of nanopollution character from real-world sources such as nano-enabled products (NEPs), thus hindering the development of environmental safety guidelines for engineered nanomaterials ...Read more
Author:Baisitse, TR; Forbes, A; Katumba, G; Botha, JR; Engelbrecht, JAADate:2008In this paper, infrared reflectance spectroscopy was employed to extract information on the optical and electrical properties of metal organic vapour phase epitaxial (MOVPE) grown InAs and InAsSb epilayers. These epitaxial layers were grown ...Read more
Author:Phokeer, A; Johnson, D; Densmore, MDate:Sep 2016The paper describes a measurement study of mobile Internet usage in township communities in South Africa. The idea is to understand usage pattern of mobile data that would motivate the provisioning of a localised cloudlet infrastructure with ...Read more
Author:Jayaramudu, J; Guduri, BR; Rajulu, AVDate:Mar 2010The new natural fabric Grewia tiliflia was extracted from its tree. This uniaxial fabric was analyzed by chemical, Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, scanning electron microscopy and polarized ...Read more
Author:Brady, D; Beeton, A; Zeevaart, J; Kgaje, C; Van Rantwijk, F; Sheldon, RADate:Mar 2004Bio-catalytic transformations converting aromatic and arylaliphatic nitriles into the analogous related amide or acid were investigated.These studies included synthesis of the beta-substituted nitrile 3-hydroxy-3-phenylpropionitrile, subsequent ...Read more
Author:Jele, TB; Sithole, Bishop B; Lekha, Prabashni; Andrew, Jerome EDate:May 2022In this study, three different pulp and paper mill sludge (PPMS) samples collected from different South African mills were chemically and physically characterised to investigate their suitability for various beneficiation pathways. The overall ...Read more
Author:Zondi, MC; Tekane, Yanga C; Magidimisha, Edwin; Wium, Elsmari; Gopal, Ajith K; Bemont, CDate:Sep 2017Infrared (IR) thermography is a technique used to measure temperature distribution of heat generation in manufacturing processes such as welding. IR thermography is a non-destructive and non-contact method, which makes it favoured for the arc ...Read more
Author:Timme, E; Walwyn, D; Bailey, ADate:May 2009Purple carotenoprotein containing astaxanthin as the prosthetic group was extracted from the carapace shells of Jasus lalandii. The material, with a molecular mass of around 400 000 Da and max 525nm (a-crustacyanin), was readily converted ...Read more
Author:Sanders, PJ; De Beer, Morris; du Plessis, HWDate:26 May 2009Various aspects of the determinations and use of elastic moduli of pavements materials are herein addressed. Included is an investigation into the sensitivity of pavement life to changes in elastic material parameters, an update of moduli ...Read more
Author:Gledhill, Irvy MA; Nordstrom, JDate:Sep 2011This study concludes that: 1. the energy equation is expressed in terms of translations and rotational acceleration, 2. the generalised enthalpy equation is similarly expressed, 3. but the meaning of these is still to be explored, 4. dimensionless ...Read more
Author:Frederick, J; Brady, D; Dirr, HDate:Oct 2006A versatile nitrile-degrading bacterium, Rhodococcus rhodochrous ATCC BAA-870, was isolated through enrichment culturing of soil samples from Johannesburg, South Africa. Useful nitrile-metabolising activity of a potential biocatalyst, Rhodococcus ...Read more
Author:Nthwane, Yvonne B; Tancu, Yolanda; Maity, Arjun; Thwala, MelusiDate:Apr 2019The application of titanium oxide engineered nanomaterials (TiO2 (sub 2) ENMs) in products is dominant in sunscreens and can be release into water systems with relative ease during sunscreen use. The current study examined the physico-chemical ...Read more