Author:Guduri, BBR; George, S; Lawrence, CC; Anandjiwala, RDDate:Dec 2007The main objective of this research was to study the effect of water absorption on mechanical properties of hemp fibre reinforcement for polyolefin’s (PP & HDPE) composites. The poor resistance towards water absorption is one of the drawbacks ...Read more
Author:Karsten, AEDate:Oct 2008The wide spread use of lasers as a treatment modality emphasized the need that users are aware of the parameters that effect the dose applied during treatment. The results presented show the importance to know the optical parameters (absorption, ...Read more
Author:Melebari, A; Melebari, A; Alomar, W; Abdul Gaffar, MY; De Wind, R; Cilliers, Jacques EDate:Oct 2015A major challenge in radar design is to not overflow the processor with false detections. This paper investigates the performance of Constant False Alarm Rate (CFAR) algorithms on maintaining a fixed false alarm rate when windowing is used ...Read more
Author:Litvin, IA; Forbes, ADate:2005Bessel beams have gathered much interest of late due to their properties of near diffraction free propagation and self reconstruction after obstacles. Such laser beams have already found applications in fields such as optical tweezers and ...Read more
Author:Lemley, DA; Lamberth, SJ; Manuel, W; Nunes, M; Rishworth, GM; Van Niekerk, Lara; Adams, JBDate:Jun 2021Increased nutrient loading associated with rapid population growth is the leading cause of deteriorating water quality in urbanized estuaries globally. Small estuaries are particularly sensitive to changes when connection with the marine ...Read more
Author:Mittal, H; Maity, Arjun; Ray, SSDate:Aug 2015Biodegradable hydrogels of gum ghatti (Gg) with a co-polymer mixture of acrylamide (AAm) and methacrylic acid (MAA) (termed as Gg-cl-P(AAm-co-MAA)) were synthesised by microwave-assisted free radical graft co-polymerisation technique. The ...Read more
Author:Rasilingwania, TE; Gumbo, JR; Masindi, V; Muedi, KL; Mbhele, Nkhangweleni RDate:Jul 2023Herein, the removal of Congo red (CR) dye from aqueous solution using MgO nanoparticles (MgONPs) was reported. Batch experiments were used to fulfil the objectives of this study. Specifically, the one-factor-at-a-time (OFAAT) mode where the ...Read more
Author:Ottermann, RW; Burger, NDL; Von Wielligh, AJ; Handley, MF; Fourie, GADate:Sep 2002This project follows on from project GAP 708, The Design and Development of an Effective Support System for Tabular Stopes in Gold and Platinum Mines. The primary output of this project is to develop and surface test an effective roof support ...Read more
Author:Tesfaye, M; Tsidu, M; Sivakumar, V; Botai, JDate:Sep 2011In this study, by modifying the optical parameterization of Regional Climate model (RegCM), the authors have computed and compared the Effective Single-Scattering Albedo (ESSA) which is a representative of VIS spectral region. The arid, ...Read more
Author:Oyewobi, SS; Hancke, GP; Abu-Mahfouz, Adnan MI; Onumanyi, Adeiza JDate:Mar 2019The overcrowding of the wireless space has triggered a strict competition for scare network resources. Therefore, there is a need for a dynamic spectrum access (DSA) technique that will ensure fair allocation of the available network resources ...Read more
Author:Ramadeen, P; Duvenhage, B; Duvenhage, ADate:Sep 2009A 3rd party 3-dimensional visualization tool (developed by the Council for Scientific and Industrial Research (CSIR)) is being used to visualize and assist with the development of a synthetic environment for joint command and control technology ...Read more
Author:Triebel, R; Van Niekerk, SDate:Nov 2001This research project dealt, importantly, only with safety issues and focussed only on gold and platinum mines. It was conducted amongst representatives (more than 75 personal interviews) of government, labour and mining groups and mines. The ...Read more
Author:Labuschagne, WA; Eloff, MMDate:Jul 2014Using cyberspace to conduct business and personal duties has become ubiquitous to an interconnected society. The use of information technology has provided humanity with a platform to evolve and contribute to the advancement of society. However ...Read more
Author:Petersen, Chantel R; Jovanovic, Nebojsa; Grenfell, MCDate:Jun 2020This study evaluates relationships between contrasting land uses representing an anthropogenic impact gradient in a coastal agricultural catchment, and riparian vegetation, as reflected in changes in nutrient dynamics and water quality. The ...Read more
Author:Muronga, KhangweloDate:Feb 2017The Naturalistic Driving Studies (NDS) are research methods that have the ability to improve existing methods for collecting data about driver performance and driver behaviour in normal driving conditions. The purpose of this research is to ...Read more
Author:Foax, LJ; Mazibuko, NEDate:Oct 2008Severity levels of air pollutants rich in oxides, chlorides and sulphides were successfully measured in indoor and outdoor atmospheres using pure copper and silver coupon corrosivity monitoring (CCM) metal strips when the maximum exposure ...Read more
Author:Tlotleng, MonnammeDate:May 2019Producing alloys via in-situ laser alloying approach is becoming very easy and a topical issue in the field of laser additive manufacturing. Several studies have emerged, accompanied by a statement by Gasper et al. (2017), who reported the ...Read more
Author:Mokgonyane, TB; Sefara, Tshephisho J; Manamela, MJ; Modipa, TI; Masekwameng, MSDate:Aug 2020Automatic speaker recognition is the task of automatically determining or verifying the identity of a speaker from a recording of his or her speech sample and has been studied for many decades. One of the most important steps of speaker ...Read more
Author:Mlando, Mvubu B; Anandjiwala, Rajesh D; Patnaik, AsisDate:Apr 2019This article reports a study on the effect of different natural fibres, their blend ratios and varying air gaps between a needle-punched non-woven fabric and polystyrene backing on the sound absorption coefficients of the needle-punched ...Read more