Browsing Faculty of Engineering by Title
Now showing items 474-493 of 1129
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Harmonic emission assessment on a distribution network: the opportunity for the prevailing angle in harmonic phasors
(IET, 2017)Harmonic emission assessment in high-voltage networks with a number of renewable power plants (RPP) interconnected is challenging. A sound scientific methodology readily accessible to engineers is needed to validate ... -
Harmonic impedance assessment using prevailing phasors
(IEEE, 2018)In accordance with the IEC 61000-3-6, the evaluation of the harmonic emissions requires an accurate harmonic impedance representation of the system. However, the assessment of a harmonic impedance is understood to be a ... -
Harmonious industrialization: classifying, connecting and valuating industries based on their contribution to human need
(IEOM, 2017)An industry can be defined as a system within which homogenous processes strive toward a common generalizable outp ut. An industry comprises various economic, social and environmental activities. Various ... -
Harvesting of Hartbeespoort Dam micro-algal biomass through sand filtration and solar drying
(Elsevier, 2013)Renewable energy sources such as biomass are becoming more and more important as alternative to fossil fuels. One of the most exciting new sources of biomass is microalgae. One of the major obstacles in the commercial production ... -
Hazardous elements in agricultural soils surrounding a coal plant from Santa Catarina (Brazil)
(Swanson School of Engineering, Univ of Pittsburgh, 2015) -
Hazardous particles from coal fires from Santa Catarina, South Brazil
(International Pittsburgh Coal Conference, 2016) -
Heading alignment with summarized inertial pose constraints
(IEEE, 2014)A discontinuity seems to exist in present aided inertial navigation systems – the operational availability of high cost inertial navigation currently depends on the availability of a valid GPS lock. In general GPS ... -
Heterogeneous fenton degradation of patulin in apple juice using carbon-encapsulated nano zero-valent iron (CE-nZVI)
(MDPI, 2020)Patulin (PAT), a mycotoxin found mainly in matured apples, is produced by different species of fungi, mainly Penicillium expansum, and is found in various fruits and vegetables used to produce juice. Little focus has been ... -
Heuristic approach to the passive optical network with fibre duct sharing planning problem
(ORSSA, 2015)Similar to the constrained facility location problem, the passive optical network (PON) planning problem necessitates the search for a subset of deployed facilities (splitters) and their allocated demand points (optical ... -
High-glycolytic cancers and their interplay with the body's glucose demand and supply cycle
(Elsevier, 2011)Many difficult-to-treat solid cancer tumours and metastases have high-glucose uptake, usually under hypoxic conditions. Hypoxic tumours suppress the immune system and are insensitive to traditional chemoradiotherapies. The ... -
High-temperature thermal plasma treatment of monazite followed by aqueous digestion
(SAIMM, 2016)Monazite is a chemically inert, radioactive phosphate mineral that contains the light rare earth metals (Ce, La, Nd, Pr and Y), thorium and uranium. A new process, which improves the extraction efficiency of monazite, ... -
A highly efficient autothermal microchannel reactor for ammonia decomposition: analysis of hydrogen production in transient and steady-state regimes
(Elsevier, 2018)The experimental evaluation of an autothermal microchannel reactor for H2 production from NH3 decomposition is described. The reactor design incorporates an autothermal approach, with added NH3 oxidation, for coupled heat ... -
Holistic analysis of the effect on electricity cost in South Africa’s platinum mines when varying shift schedules according to time-of-use tariffs
(UCT, 2019)In the past the cost of electricity was not a significant concern and was not common practice for mining companies to consider peak time-of-use (TOU) tariffs for their shift schedules. It has become more prevalent, as TOU ... -
Households water quality in O’Kiep-South Africa and community perception of related health risks
(Balaban Publishers, 2019)South Africa faced challenges related to potable water quality that has periodically deteriorated, coupled with inconsistent supply of tap water (TW) to households. These challenges are a primary exasperation in the arid ... -
How do high glycemic load diets influence coronary heart disease?
(BioMed Central, 2015)Background: Diet has a significant relationship with the risk of coronary heart disease (CHD). Traditionally the effect of diet on CHD was measured with the biomarker for low-density lipoprotein (LDL) cholesterol. However, ... -
Hybrid nuclear plant simulator design requirements to enable dynamic diagnostics of plant operations
(Elsevier, 2017)With nuclear plant full scope simulator technology reaching maturity, the possibility of using its capabilities in expert systems such as online plant diagnostics has become a reality. The effectiveness of plant diagnostics ... -
Hybridisation of battery, supercapacitor and hybrid capacitor for load applications with high crest factors: a case study of electric vehicles
(IAES, 2019)This paper proposes a novel topology of hybridizing battery, supercapacitor and hybrid capacitor for optimum utilization of energy in electric vehicles. Hybridization of energy storage has been the theme of much research ... -
Hydrocyclone cut-size estimation using artificial neural networks
(Elsevier, 2016)The hydrocyclone is widely used throughout the mineral processing industry when working with slurries. It is either used for classifying, desliming or dewatering. Hydrocyclones are inexpensive, application-efficient and ... -
Hydroformylation of post-metathesis product using commercial rhodium-based catalysts
(Springer, 2018)The hydroformylation of the post-metathesis product 7-tetradecene using different commercially available homogeneous rhodium-based catalysts has been investigated. The influences of different reaction conditions such as ... -
Hydroformylation of the post-metathesis product 7-tetradecene using rhodium(I) Schiff base derived precatalysts
(Elsevier, 2019)The rhodium-catalysed hydroformylation of the post-metathesis product 7-tetradecene using aryl- (1) and ferrocenyl- (2) Schiff base derived precatalyst complexes was investigated. It was found that the reaction temperature ...
