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Browsing by Subject "Engineering, built environment and information technology theses SDG-09"
Now showing items 1-20 of 365
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(University of Pretoria, 2016)The interaction between tyres and terrain is one of the most studied areas in the vehicle dynamics and terramechanics research communities because it is the only region where excitation forces act on the vehicle if ...
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(University of Pretoria, 2018)The demand on South African railway freight lines is growing constantly with respect to train speeds and axle loading, thus increasing the forces and stresses experienced by the track structure. This may lead to rapid ...
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(University of Pretoria, 2018)Anti-lock braking systems (ABS) have revolutionised vehicle safety by providing a mechanism for braking effectively whilst maintaining stability control. ABS works very well on smooth terrains, where there are little ...
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(University of Pretoria, 2017)This aim of this project may be condensed to the following question: Is there an improvement achievable in the braking performance of a vehicle on a rough road? Several follow-up questions arise from the above problem ...
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(University of Pretoria, 2020)The compromise between ride comfort and handling for a passive suspension system is a well-known and often researched problem. Semi-active suspension systems offer significant improvements to this compromise. One example ...
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(University of Pretoria, 2017)The performance of a railway track structure is significantly influenced by ballast shape properties such as roundness, flatness, elongation, sphericity, angularity and surface texture. Railway ballast materials have to ...
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(University of Pretoria, 2017)Secondary flow structures account for nearly 50% of aerodynamic losses experienced in the turbine blade passages. The adverse effects of these vortex structures transport the hot mainstream fluid towards the endwall blade ...
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(University of Pretoria, 2019)Elevated inlet temperature is desirable in turbine passages. This is not without a whole lot of aerodynamic loss, endwall thermal stresses consequences and pressure loss penalties most especially downstream of the turbine ...
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(University of Pretoria, 2022)A recuperated solar-dish Brayton cycle using an off-the-shelf turbocharger as a micro-turbine and a rectangular cavity receiver with integrated thermal storage was considered for this study. Due to the high temperatures ...
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An investigation on inefficiencies in spare part management processes in South African Power Plants (University of Pretoria, 2018)Inefficiencies in spare parts management can, and do, have great repercussions for the execution of maintenance in Eskom power stations. Despite this, the sub-processes of spare parts management in power stations had not ...
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(University of Pretoria, 2020)Concentrated solar power is a growing but expensive alternative energy resource. One of the most common issues faced when it comes to solar dish design is the complex trade-off between cost and optical quality. A novel ...
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Analysis of Conjugate Heat Transfer and Pressure Drop in Microchannels for Different Aspects Ratios (University of Pretoria, 2016)In this study the heat transfer and hydrodynamic parameters were experimentally investigated for a single microchannel housed in a stainless steel solid base material for different aspect ratios in the laminar regime with ...
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(University of Pretoria, 2015)The safety of motor vehicles is of primary concern in the modern age as the death rate of road users are still at unacceptably high numbers and is the second largest cause for unnatural death worldwide. Consumers often ...
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(University of Pretoria, 2021)Statistics show that unstable articulated vehicles pose a serious threat to the occupants driving them as well as the occupants of the vehicles around them. An articulated vehicle typically experiences three types of ...
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(University of Pretoria, 2015)This study aimed at assessing access and use of PERii electronic journal resources by postgraduate students in the School of Education at the University of Dar es Salaam. Specific objectives for this study were to examine ...
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(University of Pretoria, 2016)A Failure Deterministic Finite Automaton (FDFA) o ers a deterministic and a compact representation of an automaton that is used by various algorithms to solve pattern matching problems e ciently. An abstract, concept lattice ...
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(University of Pretoria, 2019)The delivery of medium and mega project has been a challenge for a number of decades, with attempts made to reduce the associated issues around engineering projects implementation. Project delivery before 1950 mainly relates ...
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(University of Pretoria, 2018)In the wind resource and wind turbine suitability industry Computational Fluid Dynamics has gained widespread use to model the airflow at proposed wind farm locations. These models typically focus on the neutrally stratified ...
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(University of Pretoria, 2020-12)Learning rate schedule parameters remain some of the most sensitive hyperparameters in machine learning, as well as being challenging to resolve, in particular when mini-batch subsampling is considered. Mini-batch sub-sampling ...
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(University of Pretoria, 2015)The vertical dynamic behaviour of machine foundations subjected to vertical dynamic loading was investigated for surface and embedded foundations. The responses of these machine foundations were determined using analytical ...
Now showing items 1-20 of 365