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Browsing Engineering, Built Environment and Information Technology by Title
Now showing items 8917-8936 of 15077
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(MDPI Publishing, 2018-06-26)In high voltage direct current (HVDC) power transmission of offshore wind power systems, DC/DC converters are applied to transfer power from wind generators to HVDC terminals, and they play a crucial role in providing a ...
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(HEFAT, 2016)A numerical analysis of the internal flows is performed to im- prove the current understanding and modelling capabilities of the complex flow characteristics encountered in energy systems. Simulation is divided into two ...
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(University of Pretoria, 2015)This study is focused on modifying an existing solenoid valve based semi-active hydropneumatic spring-damper system using Magneto-Rheological (MR) fluid. The MR fluid's effective viscosity can be altered by application of ...
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(University of Pretoria, 2011)The influence of the distributor configuration on the mass transfer and bubble sizes in a 2-D FBR was studied for two types of distributor configurations: <ul><li> A novel multi-vortex (MV) distributor with tuyéres directed ...
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(University of Pretoria, 2006-01-24)The purpose of this study is to perform an investigation of the numerical methods that may contribute to the design and analysis of liquid containers. The study examines several of these methods individually, namely ...
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(Elsevier, 2018-02)This article presents the multilayered complex network formulation for three different supply chain network archetypes on an urban road grid and describes how 500 instances were randomly generated for each archetype. Both ...
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(University of Pretoria, 2015)This study aims to investigate to what extent Constitutional ideals of language equity have been implemented in multilingual publishing, to improve access to trade books. In South Africa, publishing in the different language ...
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Multimode heat transfer characteristics in airflow through a differentially heated rectangular duct (International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2007)Paper presented at the 5th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, South Africa, 1-4 July, 2007.
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(University of Pretoria, 2012)The aim and objective of this research is to formulate and solve a multi-objective optimization problem for the optimal placement of multiple rows and multiple columns of fixed flat-plate solar collectors in a field. ...
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(International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 2014)Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.
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(Southern African Institute of Mining and Metallurgy, 2019-06)Pyrometallurgical furnaces are tapped through tap-holes that are opened with drills and oxygen lances. The lance is often used on its own or as the last step of opening the tap-hole. Interaction of oxygen with molten ...
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(HEFAT, 2017)Thermal energy is at the heart of the whole energy chain providing a main linkage between the primary and secondary energy sources. Thermal energy storage (TES) has a pivotal role to play in the energy chain and hence ...
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(AOSIS OpenJournals, 2015-07)We modelled a laboratory-scale fluorine reactor which employed fully coupled, fundamental electron, heat, mass and momentum transfer (two-phase) equations to deliver a transient simulation. Hydrodynamic quasisteady- state ...
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(University of Pretoria, 1997)Damage in structures may be identified and quantified by using measured frequency response functions (FRFs) or identified modal properties as a basis for updating. The main shortcoming of these methods is that if they ...
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(Elsevier, 2013-06)A multiple objective optimisation model is formulated to help decision makers to make an optimal decision when investing in energy-efficient building retrofitting. The objectives are to maximise the energy savings and ...
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(University of Pretoria, 2011)An airfoil shape optimization problem with conflicting objectives is handled using two different multi-objective approaches. These are an a priori scalarization approach where the conflicting objectives are assigned weights ...
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Multiple project team membership and performance : empirical evidence from engineering project teams (Department of Economics, University of Pretoria, 2014)Individuals are increasingly involved in more than one project team. This implies that an employee simultaneously has multiple memberships in these project teams, a phenomenon known as multiple team membership (MTM). ...
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(University of Pretoria, 2009-04-08)The recent advent of bioinformatics has given rise to the central and recurrent problem of optimally aligning biological sequences. Many techniques have been proposed in an attempt to solve this complex problem with varying ...
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(Vaal Triangle Faculty of Northwest University in South Africa, 2015-11)Since this article involves invention, the conditions for inventiveness become the issue: assuming multiple reality; thinking in a special way; transgressing boundaries; acknowledging networks (in the terms of Michel ...
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(2009-07-20)A lot of research has been done to determine the size of airports. This includes the determination of airport capacity, runway capacity, check-in capacity and flight scheduling. Since the terminal buildings are the most ...
Now showing items 8917-8936 of 15077