The association between sources of air pollution and respiratory health in Pretoria, South Africa

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Efficiency calibration of a gamma-ray detector for measuring environmental radiation by Bulala, Avuyile Sisanda

“…The measurements using reference sources of known activity were carried out using two sample holders (Marinelli Beaker (1000 ml) and, a cylindrical pill bottle (100 ml)), and a point source. …”
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Development of new methods for nonintrusive induction motor energy efficiency estimation by Aminu, Muhammad

“…This PhD work presents some novel methods for nonintrusive efficiency estimation of induction motors operating on-site using limited motor terminal measurements and nameplate data. …”
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Efficient modelling of a wind turbine system for parameter estimation applications by Bekker, Johannes Cornelius

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Enhanced method of moments performance through efficient implementation and error estimation by Cilliers, Pierre

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Renewable energy : benefits of converting urban households to solar water heating

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Development of a rapid molecular method for detection of C. perfringens and other pathogens in water sources by Savahl, Naqsha

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Evaluating Namibian macrophytic algae as dietary source for South African abalone (Haliotis midae) by Tsanigab, Salomon M.

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Different techniques to evaluate a liquid rumen protected methionine source for dairy cows

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The effect of source and season on water quality and the effect of water quality on feedlot lamb production by Kirsten, Rosa

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An in vitro comparison of plant‐based protein sources and their effects on feedlot lamb growth parameters by Van Niekerk, Marguerite

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The effect of sugar, starch and pectin as microbial energy sources on in vitro forage fermenation kinetics by Malan, Marcia

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The effect of sugar, starch and pectin as microbial energy sources on in vitro forage fermentation kinetics by Malan, Marcia

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Energy-efficient adaptive data rate optimisation scheme for LoRaWAN

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The effect of South African provincial road condition on the efficiency of forest product transport by Nicholls, Stephen John

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Electrocatalysis by Design: Low Dissolution Counter Electrode and Highly Efficient Nanostructured Electrocatalysts by Hasan, Menna

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Expression of novel amylases in Saccharomyces cerevisiae for the efficient conversion of raw starch to bioethanol by Cripwell, Rosemary Anne

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Establishing a facility to measure the efficiency of structured packing under total reflux by Paquet, Emil Friedrich

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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. …”
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