Browsing Faculty of Engineering by Title

Now showing items 1258-1277 of 1724

  • Parallel algorithms for electromagnetic moment method formulations 

    Davidson, David Bruce (Stellenbosch : Stellenbosch University, 1991-12)
    ENGLISH ABSTRACT: This dissertation investigates the moment method solution of electromagnetic radiation and scattering problems using parallel computers. In particular, electromagnetically large problems with arbitrary ...

  • Parallel paradigms in optimal structural design 

    Van Huyssteen, Salomon Stephanus (Stellenbosch : Stellenbosch University, 2011-12)
    ENGLISH ABSTRACT: Modern-day processors are not getting any faster. Due to the power consumption limit of frequency scaling, parallel processing is increasingly being used to decrease computation time. In this thesis, ...

  • Parameter extraction of superconducting integrated circuits 

    Lotter, Pierre (Stellenbosch : University of Stellenbosch, 2006-12)
    Integrated circuits are expensive to manufacture and it is important to verify the correct operation of a circuit before fabrication. Efficient, though accurate, parameter extraction of post-layout designs are required ...

  • A parametric monophone speech synthesis system 

    Klompje, Gideon (Stellenbosch : University of Stellenbosch, 2006-12)
    Speech is the primary and most natural means of communication between human beings. With the rapid spread of technology across the globe and the increased number of personal and public applications for digital equipment ...

  • Particle deflection and plate-out dynamics in a helium stream 

    Steyn, Hermanus Johannes (Stellenbosch : University of Stellenbosch, 2009-12)
    ENGLISH ABSTRACT: In the primary circuit components of high temperature reactors, various unwanted particles have been found. These particles include, for example, graphite and silver- 110 (110mAg). The silver-110 (110mAg) ...

  • A passive night-sky radiation system 

    Joubert, Gideon Daniel (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: A passive night-sky radiation cooling system consists of a radiation panel and a cold water storage tank. The stored cold water may be used to cool a room during the day time, particularly in summer. ...

  • A passive suspension system for a hydrofoil supported catamaran 

    Kopke, Markus (Stellenbosch : University of Stellenbosch, 2008-03)
    This study investigates practical passive methods to improve the seakeeping of a Hydrofoil Supported Catamaran (Hysucat). The Hysucat is a hybrid vessel combining hydrofoil efficiency with the stability of catamarans. The ...

  • Path planning for an unmanned terrestrial vehicle in an obstacle ridden environment 

    Ferreira, Thomas Ignatius (Stellenbosch : University of Stellenbosch, 2009-03)
    This thesis relates to the successful development of an unmanned terrestrial vehicle (UTV) capable of operating in an obstacle ridden environment. The primary focus of the project is on the specific path planning algorithms. ...

  • PAVDAM - probabilistic and volumetric design of asphalt mixtures 

    Smit, Andre de Fortier (Stellenbosch : Stellenbosch University, 2002-12)
    ENGLISH ABSTRACT: The dissertation presents a design procedure for HMA mixes based on probabilistic and volumetric approaches, hereafter referred to as PAVDAM. Central to PAVDAM is the use of an analytical model for ...

  • Paving the way for the use of prediction modelling in a health care environment 

    Van Zyl, Ilse (Stellenbosch : Stellenbosch University, 2011-10)
    ENGLISH ABSTRACT: The high cost of hospitalisation is a challenge for many health insurance companies, governments and individuals alike. In 2006, studies concluded that well over $30 billion was spent on unnecessary h ...

  • Paving the way for the use of prediction modelling in a hospital environment 

    Van Zyl, I.; Van Dyk, L.; Lane-Visser, T. E. (Operations Research Society of South Africa (ORSSA), 2011-09)
    ENGLISH ABRACT: The high cost of hospitalisation is a challenge for many health insurance companies, governments and individuals alike. In 2006, studies concluded that well over $30 billion was spent on unnecessary ...

  • Performance and thermo-mechanical cost evaluation of API 661 air-cooled heat exchangers 

    Ackers, Mogamat Sadley (Stellenbosch : Stellenbosch University, 2012-12)
    ENGLISH ABSTRACT: The optimal design of a heat exchanger for a specified heat transfer, pressure drop and set of ambient conditions entails minimising space, weight, material usage and overall cost. However, the variables ...

  • Performance characteristics of an air-cooled steam condenser incorporating a hybrid (dry/wet) dephlegmator 

    Heyns, Johan Adam (Stellenbosch : Stellenbosch University, 2008-12)
    This study evaluates the performance characteristics of a power plant incorporating a steam turbine and a direct air-cooled dry/wet condenser operating at different ambient temperatures. The proposed cooling system uses ...

  • Performance characteristics of packed bed thermal energy storage for solar thermal power plants 

    Allen, Kenneth Guy (Stellenbosch : University of Stellenbosch, 2010-03)
    ENGLISH ABSTRACT: Solar energy is by far the greatest energy resource available to generate power. One of the difficulties of using solar energy is that it is not available 24 hours per day - some form of storage is ...

  • Performance Characterization of Cement Treated Sand Base Material of Mozambique 

    De Vos, Ebenhaezer Roux (Stellenbosch : University of Stellenbosch, 2007-03)
    Mozambique is investing heavily in rehabilitating and upgrading the current roadway infrastructure. Investigation by the Mozambican roads authority found that some consulting engineers and contractors were not familiar ...

  • A performance comparison of media access control protocols for vehicular ad-hoc networks (VANETs) 

    Booysen, Marthinus J.; Zeadally, Sherali; Van Rooyen, Gert-Jan (The Institution of Engineering and Technology (IET), 2012-04)
    The emergence of computationally rich vehicles and recent advances in wireless communication technologies are fueling vehicular network research in industry and academia. A key challenge to the successful deployment of ...

  • Performance evaluation of a micro gas turbine centrifugal compressor diffuser 

    Krige, David Schabort (Stellenbosch : Stellenbosch University, 2013-03)
    ENGLISH ABSTRACT: Micro gas turbines used in the aerospace industry require high performance with a compact frontal area. These micro gas turbines are often considered unattractive and at times impractical due to their ...

  • Performance evaluation of a solar chimney power plant 

    Hedderwick, Richard Anthony (Stellenbosch : University of Stellenbosch, 2000-12)
    A solar chimney power plant consists of a central chimney that is surrounded by a transparent canopy located a few meters above ground level. The ground beneath this canopy or collector as it is known is heated by the ...

  • Performance evaluation of natural draught cooling towers with anisotropic fills 

    Reuter, Hanno Carl Rudolf (Stellenbosch : University of Stellenbosch, 2010-12)
    ENGLISH ABSTRACT: In the design of a modern natural draught wet-cooling tower (NDWCT), structural and performance characteristics must be considered. Air flow distortions and resistances must be minimised to achieve ...

  • Performance evaluation of neighbor-awareness at the Media Access Control (MAC) layer for Vehicular Ad-Hoc Networks (VANETs) 

    Booysen, Marthinus J.; Van Rooyen, Gert-Jan (IEEE -- Institute of Electrical and Electronics Engineers, 2013-06)
    Efficient medium access in Vehicular Ad-hoc NETworks (VANETs) remains a significant challenge. Two types of Media Access Control (MAC) approaches have been proposed, namely contention-based and contention-free. We propose ...