Reducing the total cost of ownership of mining haul trucks by Riley, Lennard Barry

Get full text

A 3-phase Z-source inverter driven by a novel hybrid switching algorithm by Malengret, Jean-Claude

“…A novel DSP control algorithm allows the inverter toachieve the following:· Run Space Vector Pulse Width Modulation (SV-PWM) for maximum DCbus voltage utilization while boosting the DC bus during zero space vectorstates using shoot through.· Seamless transition between modulation control and modulation / shootthrough control.· Optimised efficiency and DC bus utilisation using Hybrid Space VectorBoost Pulse Width Modulation (HSVB PWM) which is unique to thisdissertation.Such a system is particularly suited to fuel cell and particularly wind turbineapplications where the DC bus voltage is varies over a wide range resulting inthe need for a DC to DC buck/boost to regulate the DC bus to maintain a steady3-phase sinusoidal output. …”
Get full text

A Comparison Between Machine Learning Techniques to Find Leaks in Pipe Networks

Get full text

Finite element analysis of flows in secondary settling tanks by Kleine, Dorothee

Get full text

Development and comparison of processes for the extraction of dietary protein from yellow peas by Annoh-Quarshie, Julia

Get full text

A hydrodynamic study of nickel suspension in stirred tanks by Aoyi, Ochieng

“…In the present work, computational fluid dynamics (CFD) simulation and experimental methods were employed to study suspension of high density particles (nickel) at high solids concentration in water. …”
Get full text

Systematic asset allocation using flexible views for South African markets by Sebastian, Ponni

“…We implement a systematic asset allocation model using the Historical Simulation with Flexible Probabilities (HS-FP) framework developed by Meucci [142, 144, 145]. …”
Get full text

Numerical solution of advection-diffusion and convective Cahn-Hilliard equations

Get full text

Reliability evaluation of solar power in South Africa's power system by Bailey, Nicolas

Get full text

Die inkorporering van OPT beginsels in 'n voorwaartse skeduleringsprosedure wat van diskrete gebeurtenis simulasie gebruik maak by Davel, Heleen Martha

Get full text

The design and development of GPU accelerated algorithms for ab initio integrals and integral derivatives illustrated on ab initio quantum and hybrid QM/MM dynamics by Renison, Carina Alicia

“…A speedup of up to 9.3X is achieved for an ab initio gradient calculation compared to the CPU running an optimized serial version of GAMESS-UK using the Schlegel method. …”
Get full text

Multiobjective in-core fuel management optimisation for nuclear research reactors by Schlunz, Evert Barend

Get full text

The distribution and redistribution of health resources in South Africa by Van den Heever, Alexander Marius

“…The second deals with a method for defining appropriate medical interventions on the micro level. …”
Get full text

Formal analysis of state estimation for nonlinear model predictive control by Moeti, Sekhonyana

“…The analysis is facilitated by two nonlinear optimal state estimation methods: augmented state EKF (ASEKF) and augmented state UKF (ASUKF) for comparison purposes. …”
Get full text

The stoichiometry and kinetics of biological heat generation in the aerobic stage of dual digestion by Messenger, John

“…Also, the observed results are generalized and, based on the observed general principles, a design procedure and a simulation algorithm and computer programme for pure oxygen and air oxygenated reactors are developed, in accordance with objectives (1) to (3) above.…”
Get full text

Introduction to fast Super-Paramagnetic Clustering by Yelibi, Lionel

“…We map stock market interactions to spin models to recover their hierarchical structure using a simulated annealing based Super-Paramagnetic Clustering (SPC) algorithm. …”
Get full text

Evaluation of Physics-informed Neural Network Solution Accuracy and Efficiency for Modelling Aortic Transvalvular Blood Flow. by Du Toit, Jacques Francois

Get full text

Parametric Yield and Tolerance Optimisation of Electromagnetic Devices using Feature-based Non-Linear Partial Least Squares Polynomial Chaos Expansion Surrogates by Nfanyana, Ketshabile

Get full text

Performance evaluation of massive MIMO Systems for future wireless access systems by Gahadza, Mutsawashe

“…Optimal methods such as Maximal Likelihood (ML) signal processing methods have high computational complexity such that their practical implementation is difficult. …”
Get full text

Calibration of capacity models to predict queues and delays at roundabouts in South Africa operating under saturated conditions by Van Tonder, Inge

Get full text