Browsing Faculty of Engineering by Title
Now showing items 924-943 of 1129
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Sample positioning in neutron diffraction experiments using a multi-material fiducial marker
(Elsevier, 2017)An alternative sample positioning method is reported for use in conjunction with sample positioning and experiment planning software systems deployed on some neutron diffraction strain scanners. In this approach, the ... -
Seasonal variation of hydrochemical characteristics of open-pit groundwater near a closed metalliferous mine in O’Kiep, Namaqualand Region, South Africa
(Springer, 2020)In this study, the hydrochemical characteristic changes of open-pit groundwater (OPGW) near a closed metalliferous mine proposed for drinking and irrigation usage were investigated. Water samples from an OPGW in O’Kiep ... -
Securing number plates based on digital signatures and RFID
(IEEE, 2013)The automated detection of vehicles forms an important part of Intelligent Transportation Systems. The vehicle number plate is the primary token used for the identification of the vehicle; the number plates industry is ... -
Sediment microbial fuel cell for wastewater treatment: a new approach
(Wiley, 2019)Abstract: This chapter contains sections titled: Introduction -- Fundamentals of SMFC and CW‐MFC -- Factors Affecting the Performance of SMFC and CW‐MFC -- Electricity Generation as a Function of Substrate ... -
Selective adsorption of heavy and light metals by natural zeolites
(PSRC, 2014)Recent studies have shown that zeolite can be applied through an ion-exchange process to remove metals from solutions. In this paper the potential of two zeolites to perform as sorbents for treatment of multi-metal system ... -
A self-sensing active magnetic bearing based on a direct current measurement approach
(MDPI, 2013)Active magnetic bearings (AMBs) have become a key technology in various industrial applications. Self-sensing AMBs provide an integrated sensorless solution for position estimation, consolidating the sensing and actuating ... -
A self-sensing active magnetic bearing based on a direct current measurement approach
(MDPI, 2013)Active magnetic bearings (AMBs) have become a key technology in various industrial applications. Self-sensing AMBs provide an integrated sensorless solution for position estimation, consolidating the sensing and actuating ... -
Self-sensing for electromagnetic actuators. Part 1. A coupled reluctance network model approach
(Elsevier, 2011)A self-sensing arrangement in active magnetic bearings (AMBs) comprises a single electromagnetic transducer to realize the actuation and sensing functions concurrently. Minimizing the number of sensing devices and associated ... -
Self-sensing for electromagnetic actuators. Part 2. Position estimation
(Elsevier, 2011)The second paper in a two part series presents the position estimation scheme for an 8-pole heteropolar active magnetic bearing (AMB). The integrated self-sensing assembly comprises a nonlinear MIMO parameter estimator ... -
SEM image processing as an alternative method to determine chromite pre-reduction
(SAIMM, 2017)The specific energy consumption (SEC) of the pelletized chromite prereduction process is the lowest of all FeCr production processes commercially applied. This process also eliminates the use of chromite ore fines that ... -
The semi-automated creation of stratified speech corpora
(Pattern recognition association of South Africa (PRASA), 2013)Smartphones provide an efficient means for the collection of speech data; however, the quality of the corpora created in this fashion is not predictable. We describe an approach that allows us to post-process and rank ... -
Semi-empirical model for limestone dissolution in adipic acid for wet flue gas desulfurization
(Wiley-VCH Verlag, 2014)Wet flue gas desulfurization systems are commonly applied to remove sulfur dioxide by contacting it with limestone in an aqueous phase. The effects of pH, stirring speed, solid-to-liquid ratio, acid concentration, and ... -
Semi-Supervised Training for Lecture Transcription in Resource-Scarce Environments
(Pattern Recognition Association of South Africa and Mechatronics International Conference, 2014)We present a study where standard semi-supervised training methods are applied in a resource-scarce environment to build lecture transcription systems. Experiments are conducted on two different corpora which one can ... -
Sensitivity of static energy meter reading errors to changes in non-sinusoidal load conditions
(IEEE, 2019)Previous studies regarding static energy meter errors under non-sinusoidal load conditions have shown that these meters can produce erroneous readings. This paper describes an investigation done using loads consisting ... -
Separate effects tests to determine the effective thermal conductivityin the PBMR HTTU test facility
(Elsevier, 2014)Thermal-fluid simulations are used extensively to predict the maximum fuel temperatures, flows, pressure drops and thermal capacitance of pebble bed gas cooled reactors in support of the reactor safety case. The PBMR company ... -
Separate effects tests to determine the thermal dispersion instructured pebble beds in the PBMR HPTU test facility
(Elsevier, 2014)Thermal-fluid simulations are used extensively to predict the maximum fuel temperatures, flows, pressure drops and thermal capacitance of pebble bed gas cooled reactors in support of the reactor safety case. The PBMR company ... -
Separation of alkenes with organic and inorganic composite membranes
(IChemE, 2013)In this study the separation of two alkenes, ethene and butene, which have similar physical properties, was attempted for industrial gas purification. Using both inorganic (ceramic and zeolite NaA) and polymeric (Teflon ... -
Separation of different metathesis grubbs-type catalysts using organic solvent nanofiltration
(Elsevier, 2010)In this paper, the challenge of separating and re-using homogeneous catalysts from their post-reaction mixture in the field of metathesis is addressed using organic solvent nanofiltration (OSN). A coupled reaction–separation ... -
Separation of lignin from industrial prehydrolysis liquor using a solid acid catalyst
(ETA-Florence Renewable Energies, 2019)The concept of a biorefinery has been introduced in the pulp and paper industry in order to improve the industry’s profitability and competitiveness by generating new revenues from new products. Prehydrolysis liquor (PHL) ... -
Series-parallel approach to on-line observer based neural control of a helicopter system
(Elsevier, 2014)This paper is concerned with the control of an under-actuated, uncertain, delayed non-linear system through the implementation of arti cial neural networks(ANNs). The aim is the development of a series-parallel training ...
