Browsing Faculty of Engineering by Title
Now showing items 863-882 of 1129
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Quadratic mode shape components from ground vibration testing
(ASME, 2012)Points on a vibrating structure generally move along curved paths rather than straight lines. For example, the tip of a cantilever beam vibrating in a bending mode experiences axial displacement as well as transverse ... -
Quadratic mode shape components from linear finite element analysis
(ASME, 2012)Points on a vibrating structure move along curved paths rather than straight lines; however, this is largely ignored in modal analysis. Applications where the curved path of motion cannot be ignored include beamlike ... -
The qualification of coal degradation with the aid of micro-focus computed tomography
(ASSAf, 2015)The production of unwanted coal fines during the handling and utilisation of coal is a serious problem in processes that rely on large or closely sized particles. Coal degradation occurs at many different steps within ... -
A qualitative assessment of the insulation systems of medium voltage induction motors
(IEEE, 2007)The research was an attempt to understand the condition of the insulation system and to classify the data according to its condition. Data mining processes was used to create a model to gain insight into the data and the ... -
Quality of supply data mining
(IEEE, 2014)Extracting useful network management information from a large volume of QoS data obtained all over a network can be simplified by innovative data mining techniques. The need for QoS expertise is reduced as interactive ... -
Quality research management improves design research effectiveness
(Univ Stellenbosch, 2019)Design research projects are often more complex than initially perceived due to a requirement for novelty, the creativity inherent in the design process, and the limited experience of novice researchers. Also, expectations ... -
Quantification and propagation of neutronics uncertainties of the Kozloduy-6 VVER-1000 fuel assembly using SCALE 6.2.1 within the NEA/OECD benchmark for uncertainty analysis in modelling of LWRs
(Elsevier, 2019)This work is based on the benchmark for uncertainty analysis in modelling of light water reactors compiled by the Nuclear Energy Agency within the Organisation for Economic Cooperation and Development (OECD/NEA). The ... -
Quantification of oxygen capture in mineral matter during gasification
(Elsevier, 2008)It has been observed that during the transformation of minerals at higher temperatures (>1000 °C), mineral species are formed containing a high number of oxygen molecules, i.e. gehlenite (Ca2Al2SiO7), mullite (Al6Si3O15), ... -
Radial variation in porosity in annular packed beds
(Elsevier, 2008)This paper describes the results of a study of the variation in the radial direction in the porosity of annular packed beds. A comparison is made between the predictions by a number of empirical correlations found in ... -
The Radial Variation of the Solar Wind Turbulence Spectra near the Kinetic Break Scale from Parker Solar Probe Measurements
(American Astronomical Society, 2023)In this study we examine the radial dependence of the inertial and dissipation range indices, as well as the spectral break separating the inertial and dissipation range in power density spectra of interplanetary magnetic ... -
The random pore model with intraparticle diffusion for the description of combustion of char particles derived from mineral- and inertinite rich coal
(Elsevier Science, 2011)An investigation was undertaken to determine the applicability of the random pore model with intraparticle diffusion for the determination of the reaction kinetics for the combustion of chars particles derived from coals ... -
Rapid development of TTS corpora for four South African languages
(Interspeech 2017, 2017)This paper describes the development of text-to-speech corpora for four South African languages. The approach followed investigated the possibility of using low-cost methods including informal recording environments and ... -
Rapid microwave-assisted liquid phase conversion of bio-ethanol to n-butanol over a heterogeneous catalyst
(Taylor & Francis, 2018)A sustainable bio-based fuel industry is dependent on finding efficient technologies for the production of biofuels. A microwave-assisted method to produce bio-butanol from bio-ethanol in liquid phase was investigated using ... -
Reactivity of Fe salts in the destabilization of acid mine drainage employing mixing and shaking techniques without pH adjustment
(Elsevier, 2016)Ferric chloride and Fe-sulphates are commonly Fe-salts used in water treatment, and the iron ionizes to form Fe3 + or Fe2 + when reduction occurs. A volume of 200 mL acid mine drainage (AMD) sample was poured into five 500 ... -
Reactivity study of fine discard coal agglomerates
(Elsevier, 2015)In this laboratory study thermo-gravimetric analyses were conducted to determine the influence of the addition of an alkaline metal catalyst (K2CO3 incorporated into a fine discard coal agglomerate mixture by physical ... -
Reactor technology options for distributed hydrogen generation via ammonia decomposition: a review
(Elsevier, 2013)Hydrogen (H2) fuel obtained via thermo-catalytic ammonia (NH3) decomposition is rapidly attracting considerable interest for portable and distributed power generation systems. Consequently, a variety of reactor technologies ... -
Real-time displacement analysis and correction system for vibration forces on rotor of rotational active magnetic bearing system
(Emerald, 2011)The real-time displacement analysis and correction of vibration forces on the rotor of a rotational active magnetic bearing (AMB) system were performed. The real-time system performs four main tasks: fault detection, fault ... -
Real-time modeling of retractable self-launching glider using spreadsheets
(Emerald, 2017)Purpose This paper aims to propose a spreadsheet method for modeling and simulation of a retraction system mechanism for the retractable self-launching system for a high-performance glider. Design/methodology/approach More ... -
Real-time monitoring of temperature distribution in a lithium-ion battery pack
(NWU, 2018)Intelligent battery management systems aim to continuously diagnose the state-of-health (SOH) of cells in a battery pack and predict performance, reliability and safety issues. Cells with a higher internal resistance ... -
Real-time power system oscillation monitoring using synchrophasor measurements
(IEEE, 2015)Inter-area oscillations impact negatively on power system stability and power transfer capability. Monitoring oscillations in real time can improve control of the power system. Synchrophasor data from Phasor Measurement ...
