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Theses and Dissertations (Electrical, Electronic and Computer Engineering): Recent submissions
Now showing items 201-220 of 442
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(University of Pretoria, 2014)This research thesis seeks to investigate a new method to sense the classical Hall effect in Hall devices under the influence of a magnetic field primarily manufactured in complementary metal oxide semiconductor (CMOS) ...
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(University of Pretoria, 1978)Please read the abstract in the dissertation.
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(University of Pretoria, 1965)Please read the abstract in the dissertation.
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(University of Pretoria, 2014)An improved model for reducing the cost of long-term monitoring in Clean Development Mechanism (CDM) lighting retrofit projects is proposed. Cost-effective longitudinal sampling designs use the minimum number of meters ...
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(University of Pretoria, 2013)Recent advances in technology have increased awareness of the necessity for automated systems in people’s everyday lives. Artificial systems are more frequently being introduced into environments previously thought to ...
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(University of Pretoria, 2013)The use of databases has become an integral part of modern human life. Often the data contained within databases has substantial value to enterprises and individuals. As databases become a greater part of people’s daily ...
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(University of Pretoria, 2014-07-29)The large unlicensed 3 GHz overlapping bandwidth that is available worldwide at 60 GHz has resulted in renewed interest in 60 GHz technology. This frequency band has made it attractive for short-range gigabit wireless ...
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(University of Pretoria, 2013)The effective application of mobile robotics requires that robots be able to perform tasks with an extended degree of autonomy. Simultaneous localisation and mapping (SLAM) aids automation by providing a robot with the ...
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(University of Pretoria, 2013)The contributions of this thesis lie in the area of global finite-time observer design for a class of nonlinear systems with bounded rational and mixed rational powers imposed on the incremental rate of the nonlinear ...
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(University of Pretoria, 2013)Current radar signal processor architectures lack either performance or flexibility in terms of ease of modification and large design time overheads. Combinations of processors and FPGAs are typically hard-wired together ...
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(University of Pretoria, 2013)The interruption cost for one hour of a petrochemical plant is 33 times higher than that of the average interruption cost for industrial plants across all industries. In addition to the high cost of loss of production, ...
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(University of Pretoria, 2013)Current wireless networks still employ techniques originally designed for their xed wired counterparts. These techniques make assumptions (such as a xed topology, a static enviroment and non-mobile nodes) that are no ...
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(University of Pretoria, 2013)Important considerations of a photovoltaic (PV) source are achieving a high voltage and drawing currents with very little ripple component from it. Furthermore, the output from such a source is variable depending on ...
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(University of Pretoria, 2013)Lighting consumes approximately 20-25% of the energy produced worldwide. LED based lighting is rapidly becoming the preferred choice over incandescent and fluorescent based lighting. LEDs have advantages such as high ...
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(University of Pretoria, 2013)AC to DC rectifiers are used as front-end interface in multiple applications with DC load or in inverter fed from line voltage. In applications with variable AC input voltage, rectifiers with buck-boost capability are ...
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(University of Pretoria, 2013)Speed, power and reliability of analogue integrated circuits (IC) exhibit temperature dependency through the modulation of one or several of the following variables: band gap energy of the semiconductor, mobility, carrier ...
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(University of Pretoria, 2013)Ultra wideband (UWB) technology plays a significant role in wireless communication. The complex antenna transfer function (CATF) of an UWB antenna provides important information required for better channel designs and ...
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(University of Pretoria, 2013)In high range-resolution (HRR) radar systems, the returns from a single target may fall in multiple adjacent range bins which individually vary in amplitude. A target following this representation is commonly referred ...
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(University of Pretoria, 2013)Advances in machine condition monitoring technologies are driven by the rise in complexity of modern machines and the increased demand for product reliability. Condition monitoring research tends to focus on the development ...
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(University of Pretoria, 2013)The co-optimization of energy and reserves has become a standard requirement in integrated markets. This is due to the inverse relationship that exists between energy and reserves. The provision of reserves generally reduces ...
Now showing items 201-220 of 442