Author:Ren, Jianwei; Langmi, Henrietta W; North, Brian C; Mathe, Mahlanyane K; Bessarabov, DDate:Jan 2014A modulated synthesis of Zr-metal organic framework (Zr-MOF) with improved ease of handling and decreased reaction time is reported to yield highly crystalline Zr-MOF with well-defined octahedral shaped crystals for practical hydrogen storage ...Read more
Author:Makhoba, XH; Pooe, OJ; Mthembu, MSDate:Sep 2015For many years recombinant protein production has been at the center of biosciences used for structural and therapeutic purposes. The production of recombinant proteins in foreign host system such as E. coli has been a biggest challenge. This ...Read more
Author:Barros, EDate:May 2010In the early stages of production and commercialization of foods derived from genetically engineered (GE) plants, international consensus was reached on the principles of food safety evaluation. The concept of substantial equivalence became ...Read more
Author:Thobakgale, Setumo L; Ombinda-Lemboumba, Saturnin; Mthunzi-Kufa, PatienceDate:Apr 2022In this study, we show how surface enhanced Raman spectroscopy (SERS) can be used to monitor the molecular behaviour of aspirin and tenofovir as a means of screening medication for quality control purposes. Gold-coated slides combined with ...Read more
Author:Kebede, Mesfin A; Ozoemena, Kenneth IDate:Feb 2017A molten salt synthesis technique has been used to prepare nanorods of Mn2O3 and single-crystal LiMn2O4 nanorods cathode material with superior capacity retention. The molten salt-directed synthesis involved the use of NaCl as the eutectic ...Read more
Author:Seebregts, C; Barron, P; Tanna, G; Benjamin, P; Fogwill, TDate:May 2016In August 2014, the National Department of Health implemented MomConnect as a national digital maternal health program that implements the South African mobile health (mHealth) strategy and the National Health Normative Standards Framework ...Read more
Author:De Lange, Willem J; Mahumani, BK; Steyn, Maronel; Oelofse, Suzanna HHDate:Apr 2012This paper estimates costs associated with water pollution in the Olifants River Water Management Area (WMA) in South Africa, more specifically the Loskop Dam Water User Association. The authors focus on the impacts of salinisation on commercial ...Read more
Author:De Lange, Willem J; Botha, AM; Oberholster, Paul JDate:Jul 2016This paper presents estimates of the monetary value of the impact of eutrophication (algae) on commercial agriculture in two different catchments in South Africa. A production function approach is applied to estimate the monetary value of the ...Read more
Author:Monteiro, Pedro MS; Celliers, LouisDate:Oct 2012The coast of South Africa is a highly dynamic environment. Tidal influences, seasonal variations and the effects of storm events can rapidly and dramatically change the face of the shoreline. This is particularly true for sandy beaches. Besides ...Read more
Author:Parsons, R; Tredoux, GDate:Apr 1995Little is known about the temporal distribution of groundwater quality on a national scale in South Africa. The effective management of the country's groundwater resources is thus difficult and a need exists for a national network for monitoring ...Read more
Author:Parish, G; Musca, CA; Siliquini, JF; Antoszewki, J; Dell, Jm; Nener, BD; Faraone, L; Gouws, GJDate:Jul 1997A monolithic HgCdTe photoconductive device structure is presented that is suitable for dual-band optically registered infrared photodetection in the two atmospheric transmission windows of 3-5 mu m and 8-12 mu m, which correspond to the ...Read more
Author:Plauché, M; De Waal, A; Sharma Grover, A; Gumede, TDate:2010Successful ICT projects depend on complex, interrelated sociological and technical factors for which there are no standard theoretical framework for prediction or analysis. Morphological analysis is a problem-solving method for defining, ...Read more
Author:Mbonyiryivuze, A; Nuru, ZY; Ngom, BD; Mwakikunga, Bonex W; Dhlamini, SM; Park, E; Maaza, MDate:Jun 2015Melanins are difficult to characterize because of their intractable chemical properties and the heterogeneity in their structural features. Melanin pigments, in fact, are composed of many different types of monomeric units that are connected ...Read more
Author:Kesavan Pillai, Sreejarani; Ray, SS; Scriba, Manfred R; Ojijo, Vincent O; Hato, MJDate:Jul 2013Biocomposites containing ultraviolet (UV) radiation absorbing inorganic nanofillers are of great interest in food packaging applications. The biodegradable polylactide (PLA) composite films were prepared by solvent casting method by incorporating ...Read more
Author:Motloung, Mpho P; Ojijo, Vincent O; Sinha Roy, JayitaDate:Nov 2019This work investigates the effect of cellulose nanocrystal (CN) loading on the properties of polylactide/poly(e-caprolactone) (PLA/PCL) (70/30) blend processed in a twin-screw extruder as a potential material that can be utilized in various ...Read more
Author:Botlhoko, Orebotse J; Ramontja, J; Ray, Suprakas SDate:Mar 2018Graphene nanosheets with relatively high surface areas and few layers were prepared by the thermal shocking of graphene oxide at 700 °C for the development of biodegradable polylactide/poly(e-caprolactone) (PLA/PCL) blend composites via a ...Read more