Author:Botha, Johannes G; Van ‘t Wout, Magdalena C; Leenen, LDate:Jul 2019Mobile messaging or chat Applications (Apps) have gained increasing popularity over the past decade. Large amounts of data are being transmitted over the internet when people make use of these Apps. Metadata and personal information are being ...Read more
Author:Van Tonder, N; Denner, BF; Chang, MSDate:02 Feb 1999A chromaticity comparison took place in order to fulfil the requirements of the mutual recognition agreement (MRA) between the South African National Metrology Laboratory (CSIR/NML) and the Taiwanese National Measurement Laboratory (ITRI/CMS). ...Read more
Author:Shatalov, M; Fedotov, I; Tenkam, HM; Marais, JDate:Jul 2009A unified approach to derivation of different families of differential equations describing the longitudinal vibration of elastic rods and based on the Hamilton variational principle is outlined. The simplest model of longitudinal vibration ...Read more
Author:Shatalov, M; Fedotov, I; Tenkam, HM; Marais, JDate:Jan 2011A unified approach to derivation of different families of differential equations describing the longitudinal vibration of elastic rods and based on the Hamilton variational principle is outlined. The simplest model of longitudinal vibration ...Read more
Author:Pancham, Ardhisha; Withey, Daniel J; Bright, GDate:Oct 2016The use of low-cost, camera sensors for Simultaneous Localization And Mapping and Moving Object Tracking (SLAMMOT) is a developing research area. Image features can be static or dynamic, sparse or dense, and can appear or disappear, making ...Read more
Author:Van Rooyen, Corney; Burger, HP; Kazadi, BPDate:Nov 2006Laser welding trials were performed on thin walled cylindrical Grade 250 maraging steel tubes to determine its suitability as a joining process for rocket motor casings. Bead-on-plate (BOP) and butt welded samples were produced utilising a 5 ...Read more
Author:Eatwell, KA; Verryn, SD; Roux, CZ; Geerthsen, PJMDate:2011Collinearity potentially has a negative impact on the prediction of genetic gains in tree breeding programs. This study investigated the reliability and impact of best linear unbiased prediction (BLUP) using various collinearity mitigation ...Read more
Author:De Beer, Morris; Sadzik, EDate:Jul 2007This paper summarises the results of a study in which the maximum vertical contact stressess of the one third scale test tyres of the Model Mobile Load Simulator (MMLS3) were compared with those measured for three types of full-scale test ...Read more
Author:Egidius, P; Abu-Mahfouz, Adnan MI; Hancke, GPDate:Jun 2019The Software Defined Network (SDN) concept has been proposed to be utilized in the traditional Wireless Sensor Network (WSN) applications such as Internet of Things (IoTs), traffic engineering and smart grid, etc. The SDN Concept is an ideal ...Read more
Author:Bachoo, A; Van den Bergh, F; Gazendam, ADate:2009Satellite data volumes have seen a steady increase in recent years due to improvements in sensor technology and increases in data acquisition frequency. The gridded MODIS data products, spanning a region of interest of approximately 10° by ...Read more
Author:Van den Bergh, F; Van Wyk, MA; Van Wyk, BJDate:2006This paper presents two new schemes for interpolating missing samples in satellite diurnal temperature cycles (DTCs). The first scheme, referred to here as the cosine model, is an improvement of the model proposed in [2] and combines a cosine ...Read more
Author:Verryn, SD; Snedden, CL; Eatwell, KADate:Jun 2009Tree breeders attempt to predict the genetic gains that are likely to be achieved through selection and breeding of new generations, using stochastic or deterministic modelling. There are many factors that may cause a discrepancy between the ...Read more
Author:Butgereit, L; Botha, RADate:Oct 2013Mobile Instant Messaging (MIM) systems have produced a new convention in writing where vowels are often omitted, where new suffixes have appeared, where numerals and symbols often appear in the place of letters which have a similar shape or ...Read more
Author:Bogaers, Alfred EJ; Jansen van Rensburg, GJDate:Sep 2018In this paper we investigate different numerical techniques to approximate and model gas dispersion, with a primary focus on modelling the buoyancy effects of dense gasses. We compare the popular Gaussian dispersion model with three different ...Read more
Author:Haelterman, R; Bogaers, Alfred EJ; Degroote, JDate:Feb 2018In many cases, different physical systems interact, which translates to coupled mathematical models. We only focus on methods to solve (strongly) coupled problems with a partitioned approach, i.e. where each of the physical problems is solved ...Read more
Author:Bezuidenhout, PH; Smith, S; Mbanjwa, M; Land, KJ; Joubert, T-HDate:Nov 2015This study compares the performance between two commercially-available electrically conductive silver inks, Harima NPS-J nanopaste and the NBSIJ-FD02 Mitsubishi conductive ink, used in rapid prototyping of electronic circuits. The comparative ...Read more
Author:Ntshangase, Cynthia SDate:Aug 2019This paper presents the study of the permanence of the ear shape. The focus is on comparing ear recognition methods using images affected by illumination and geometrical changes. The main aim of the study is to determine the permanence of the ...Read more
Author:Mlambo, CS; Nelwamondo, Fulufhelo V; Mathekga, Mmamolatelo EDate:Aug 2014In this paper, two effective and mostly used Hough Transform (HT) based fingerprint alignment approaches are compared, namely; Local Match Based Alignment (LMBA) and Discretized Rotation Based Alignment (DRBA). The comparison was performed ...Read more
Author:Thompson, MW; Vink, ER; Fairbanks, DHK; Ballance, A; Shackleton, CMDate:May 2001The recent completion of the South African National Land-Cover Database and the Vegetation Map of South Africa, Swaziland and Lesotho, allows for the first time a comparison to be made on a national scale between the current and potential ...Read more
Author:Kleynhans, W; Salmon, BP; Olivier, JC; Wessels, Konrad J; Van den Bergh, FDate:Jul 2011In this paper, a change detection accuracy comparison is made between a recently proposed EKF method and a sliding window. Fast Fourier Transform(FFT) alternative within a spatio-temporal change detection framework. Both methods produce a ...Read more