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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An enquiry into gamefarming in the Cape Province by Colvin, Ian Stuart

“…Those management problems identified here found to be largely dependent on individual farmer's methods and the intensity of game utilisation. The primary uses of game were aesthetic appreciation and sport hunting. …”
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The status of assisted reproductive technology in the public health sector in Africa – a multi-country survey by Majangara, Karaga Rumbidzai

“…Methods: A mixed methods internet-based cross sectional survey was conducted in Africa in 2 phases. …”
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The role and production of traditional leafy vegetables in three rural communities in South Africa

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The effect of certified herbal medicines non - inclusion in the national health insurance scheme (NHIS) on health care delivery within the Kumasi metropolis by Nketia, Anthony

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Using CAMAC hardware for access to a particle accelerator by Truter, J N J

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The importance of selecting the optimal number of principal components for fault detection using principal component analysis by Khwambala, Patricia Helen

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The effect of a training and clinical facilitation programme for registered midwives in primary maternity settings with respect to managing labour: a pragmatic cluster randomised t... by Clow, Sheila Elizabeth

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

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"Go cry by the river" : a case study of a counselling service for abused women in rural Swaziland by Washkansky, Denise

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The determination of microbial species diversity and evenness in activated sludge systems using different biolog systems

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The mechanics of breathing in acute severe croup by Argent, Andrew Charles

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The investigation of a novel proteinase inhibitor as a means to transfer insect resistance to plants by Tasker, Jacqueline Ruth

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