Author:Bulani, S; Moleleki, L; Albertyn, J; Moleleki, JDate:May 2012In this study, a novel rDNA based plasmid was developed for display of heterologous proteins on the cell surface of Yarrowia lipolytica using the C- terminal end of the glycosylphosphatidylinositol (GPI) anchored Y. lipolytica cell wall protein ...Read more
Author:M'Boungui, G; Loveday, Philip W; Long, Craig SDate:Jan 2011The use of topology optimization in the design of a novel stator for an ultrasonic motor (USM) is investigated. The design challenge is to produce a stator, with two resonant modes whose frequencies are in a ratio of 1:2. When driven together, ...Read more
Author:Erasmus, C; Jacobs, ADate:Nov 2008As a highly nutritious and inexpensive protein food, chicken eggs are accepted in most cultures. The safety of eggs has become an issue of global concern with the emergence of the pathogen Salmonella enteritidis as a major hazard associated ...Read more
Author:Suliman, Ridhwaan; Oxtoby, Oliver F; Malan, AG; Kok, SDate:Jul 2012This work details the development of a computational tool that can accurately model strongly-coupled fluid-structure interaction (FSI) problems, with a particular focus on thin-walled structures undergoing large, non-linear deformations. The ...Read more
Author:Long, Craig S; Loveday, Philip W; Forbes, ADate:Jun 2008An intra-cavity adaptive mirror is developed for compensation of time-dependent phase aberrations to a laser beam, such as those caused by thermal lensing. The unimorph-type device consists of a metallic disc, with a mirror finish, bonded to ...Read more
Author:Motsatsi, LDate:Dec 2015Students spend majority of their time indoors, in school buildings or classroom. A poor and unsatisfactory indoor environment can affect health, productivity and comfort of occupants. Hence, a satisfactory indoor environment quality is important ...Read more
Author:Motsatsi, LDate:Dec 2015Students spend majority of their time indoors, in school buildings or classroom. A poor and unsatisfactory indoor environment can affect health, productivity and comfort of occupants. Hence, a satisfactory indoor environment quality is important ...Read more
Author:Airey, GD; Rust, FC; Verhaeghe, Benoit MJADate:Oct 1994Elastic recovery of a binder is one of the properties which is used to control the quality of the binder in road construction. The laboratory equipment used to determine elastic recovery is generally too expensive and bulky for standard usage ...Read more
Author:Madzivhandila, Phophi; Smith, Suzanne; Ntuli, Letta; Land, Kevin JDate:Oct 2018This paper presents a printed paper-based origami electrochemical sensor for the detection of heavy metals in water. Heavy metal contamination in water has significant health risks and environmental complications. The detection is typically ...Read more
Author:Pelembe, LAM; Erasmus, C; Taylor, JRNDate:2002To develop instant high protein porridge, various ratios of sorghum and cowpeas were extruded at 130 and 165 degrees C and a water content of 200 g/kg using a thin-screw extruder. An increased proportion of cowpeas resulted in an increase in ...Read more
Author:Oberholster, Paul J; Mthethwa, BLS; Botha, AMDate:Sep 2009Due to the lack of toxin standards and resource limitations for wide scale use of analytical methods for e.g. high-performance liquid chromatography (HPLC) and enzyme-linked immunosorbent assay (ELISA) in cyanobacterial toxin monitoring, it ...Read more
Author:Abia, ALK; Ubomba-Jaswa, Eunice; Ssemakalu, CC; Momba, MNBDate:Dec 2015Purpose
Research in the last few decades has increasingly demonstrated riverbed sediments as reservoirs of pathogenic bacteria, which could be released into water resources when sediments are resuspended. Current methods for enumerating these ...Read more
Author:Nandi, D; Saha, I; Ray, SS; Maity, ArjunDate:Sep 2015Reduced-graphene-oxide based superparamagnetic nanocomposite (GC) was fabricated and applied for the remediation of Ni(II) from an aqueous medium. The as-prepared GC was extensively characterized by Raman, TEM, AFM, SEM–EDX, SQUID, and BET ...Read more
Author:Van Wyn Gaardt, WM; Cassette, PDate:Feb 2006A reference system that would allow national laboratories to compare their activity measurements of non-gamma-emitting radionuclides at any time is currently being developed. The system requires a non-commercial reference-liquid scintillation ...Read more
Author:Du Plessis, A; Brent, ACDate:Jun 2006The study summarised in this paper focused on expanding existing South African mine closure cost calculation models to provide a new model that incorporates risks, which could have an effect on the closure costs during the life cycle of the ...Read more
Author:Paige-Green, P; Jones, DJDate:Mar 2004The data required for a road materials database was identified and a basic structure formulated during 2003. A set of Excel workbooks and associated worksheets was developed as a foundation for the database and as an interim means of gathering ...Read more
Author:Jones, DJ; Paige-Green, PDate:Mar 2003The data required for a road materials database has been identified and a basic structure formulated. A set of Excel workbooks and associated worksheets has been developed as a foundation for the database and as an interim means of gathering ...Read more
Author:Wilms, Josefine; Thatcher, MDate:Sep 2017Nearest neighbour searches, scaling, and a flow accumulation method were applied to improve predictions for freshwater deposits from land surfaces to the ocean for an earth systems model. Runoff, generated by the Conformal Cubic Atmospheric ...Read more