Author:Streicher, SF; Sander, WJDate:1971Part of this report, compiled by S.F Striecher, deals with the preparation of the samples, while Part B, written by W.J. Sander , comprises the results of the carbonisation tests and coke testing.Read more
Author:Strydom, ESP; Wehmeyer, ASDate:Dec 1969Freeze-dried samples are used for analysis and the methods of preparation of samples for freeze-drying are discussed. Freeze-drying has obvious advantages but has also a few minor disadvantages. Difficulties encountered in the determination ...Read more
Author:Das, J; Pradhan, SK; Samantray, S; Sahu, DR; Mishra, DK; Srinivasu, VV; Roul, BKDate:Jan 2009In order to study the size dependent DMS (Diluted Magnetic Semiconductor) behavior of Mn doped ZnO, the authors have systematically prepared a series of nanosized green powder based on Mn doped ZnO (Zn 1-x Mn x O, where x=0.02 - 0.1) materials ...Read more
Author:Fuel Research InstituteDate:1951This report details how the absorption pipettes and combustion tubes are mounted on the apparatus in the sequence, starting from the burette.Read more
Author:Labuschagne, Philip W; Adami, R; Liparoti, S; Naidoo, Saloshnee; Swai, H; Reverchon, EDate:Nov 2014In this work supercritical assisted atomization (SAA) process was used for the co-precipitation of poly(d,l-lactide) (PDLLA) and rifampicin (RIF) as nanoparticles for sustained release applications. The effect of the variation of PDLLA/RIF ...Read more
Author:Morris, WM; Simpson, BRSDate:Feb 2004Radioactive water standards prepared in Marinelli beakers can pose a problem due to potential leakage that can both compromise the standard and present a safety hazard. These difficulties can be circumvented by solidifying the standard such ...Read more
Author:Archer, M; De Vos, BJ; Visser, MSDate:Apr 2007Internationally, certified ethanol reference materials are required to calibrate breathalysers and blood-alcohol measurement instruments. The CSIR National Metrology Laboratory of South Africa provides certified aqueous ethanol solutions with ...Read more
Author:Modibedi, Remegia M; Mehlo, T; Ozoemena, KI; Mathe, Mahlanyane KDate:Oct 2015This work describes the use of Pd nanocatalyst on Vulcan XC-72 (at a very low loading, 8 wt % Pd) in passive alkaline direct ethanol fuel cell (ADEFC). The average Pd particle size obtained with TEM was 3.5 ± 0.5 nm. The XRD results of the ...Read more
Author:Tesfaye, T; Sithole, Bishop B; Ramjugernath, DDate:Aug 2018Landfill disposal of synthetic plastics poses one of the biggest threats to the environment due to their non-biodegradability. This problem can be solved by production and use of biodegradable polymers instead. Feathers are a renewable, ...Read more
Author:Adeleke, Oluwatoyin A; Tsai, P-C; Michniak-Kohn, BBDate:Oct 2015The purpose of this research is to prepare, characterize as well as assess the ex vivo buccal drug delivery and cytotoxicity of an orally disintegrating film (ODF) loaded with pyrazinamide. Pyrazinamide (solubility = 15 mg/mL at 25°C; log P ...Read more
Author:Aderibigbe, BA; Ray, Suprakas SDate:Sep 2016Malaria is treated by combination of two drugs in order to overcome drug resistance. Antimalarials have been found to be more effective by combining them with low doses of anticancer drugs. Polymer-drug conjugates containing aminoquinoline ...Read more
Author:Robertson, J; Lessing, M; Nare, SDate:Jul 2008The military’s decision to move from proprietary software to commercially available software leaves the military’s Information Technology security vulnerable and potentially unprotected. To be sufficiently prepared to these threats, the ...Read more
Author:Dlodlo, N; Krause, C; Mathaba, SU; Mvelase, PS; Kabanda, SKDate:Oct 2009This paper reports on a research to assess the readiness of Small, Medium and Micro Enterprises (SMMEs) to deliver e-government services to deep rural communities through information dissemination by the SMMEs. This research was conducted as ...Read more
Author:Grobler, M; Jansen van Vuuren, J; Zaaiman, JDate:2013The international scope of the Internet, the fast technological advances, the wide reach of technological usage and the increase in cyber-attacks require the South African administrative and legislative system to both intersect largely with ...Read more
Author:Mooi, M; Botha, RADate:Aug 2015There are a number of considerations before one can commence with establishing a Computer Security Incident Response Team (CSIRT). This paper presents the results of a structured literature review investigating the business requirements for ...Read more
Author:Magonono, M; Oberholster, Paul J; Addmore, S; Stanley, M; Gumbo, JRDate:Jul 2018The presence of harmful algal blooms (HABs) and cyanotoxins in drinking water sources poses a great threat to human health. The current study employed molecular techniques to determine the occurrence of non-toxic and toxic cyanobacteria species ...Read more
Author:Phasha, MJ; Ngoepe, PE; Pettifor, DG; Nguyen-Mann, D; Osawa, M; Harada, HDate:Apr 2006Mg alloys have, in the past decade, received revolutionary attention which emanated from the need of lightweight materials in transportation and allied industries, wherein intrinsic strength to weight ratio is of paramount importanceRead more