Browsing Faculty of Engineering by Title

Now showing items 786-805 of 1612

  • Handwritten signature verification : a hidden Markov model approach 

    Le Riche, Pierre (Pierre Jacques) (Stellenbosch : Stellenbosch University, 2000-12)
    ENGLISH ABSTRACT: Handwritten signature verification (HSV) is the process through which handwritten signatures are analysed in an attempt to determine whether the person who made the signature is who he claims to ...

  • Handwritten signature verification using hidden Markov models 

    Sindle, Colin (Stellenbosch : Stellenbosch University, 2003-12)
    ENGLISH ABSTRACT: Handwritten signatures are provided extensively to verify identity for all types of transactions and documents. However, they are very rarely actually verified. This is because of the high cost of ...

  • Harmonic interaction between weak AC systems and VSC-based HVDC schemes 

    Krige, Ernst (Stellenbosch : Stellenbosch University, 2012-12)
    ENGLISH ABSTRACT: The implementation of the Caprivi Link Interconnector (CLI) High Voltage Direct Current (HVDC) scheme in 2010 connecting the weak Namibian and Zambian Alternating Current (AC) transmission networks via ...

  • Harmonic mixer analysis and design 

    Van der Merwe, Marius (Stellenbosch : Stellenbosch University, 2002-03)
    ENGLISH ABSTRACT: Harmonic mixers are capable of extended frequency operation by mixing with a harmonic of the LO (local oscillator) signal, eliminating the need for a high frequency, high power LO. Their output spectra ...

  • A health systems engineering approach to meeting the demand for skilled foetal ultrasound services in the Boland/Overberg public health district 

    Uys, Nina (Stellenbosch : Stellenbosch University, 2010-10)
    ENGLISH ABSTRACT: In its Millennium Development Goals, the United Nations prioritizes the improvement of maternal health in developing countries. The World Health Organization argues that this can be done through improving ...

  • Helicopter tail boom vibration analysis and suppression 

    Funnell, M. E. (Marc Edwin) (Stellenbosch : Stellenbosch University, 2002-04)
    ENGLISH ABSTRACT: An experimental investigation was conducted usmg a cantilever beam to illustrate an understanding of vibration techniques and phenomena. The [Tee and forced vibration of the cantilever beam was ...

  • A heliostat field control system 

    Malan, Karel Johan (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: The ability of concentrating solar power (CSP) to efficiently store large amounts of energy sets it apart from other renewable energy technologies. However, cost reduction and improved efficiency is ...

  • Heliostat field layout optimization for a central receiver 

    Lutchman, Shanley Lawrence (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: There are two methods generally used for heliostat field layout optimization: the field growth method and the pattern method. A third, less commonly used method also exists: the free variable method. ...

  • High accuracy numerical model of the SALT mirror support truss 

    De Lange, Billy (Stellenbosch : Stellenbosch University, 2011-12)
    ENGLISH ABSTRACT: Although a numerical model of the mirror support truss of the Southern African Large Telescope (SALT) has already been developed during the design thereof, this thesis focuses on the development of the ...

  • High power LDMOS L-band radar amplifiers 

    McIver, Stuart Roderick Arthur (Stellenbosch : University of Stellenbosch, 2010-03)
    ENGLISH ABSTRACT: The thesis details the design, construction and experimental evaluation of 30W, 35W and 250W L-Band LDMOS Radar amplifiers. Each amplifier module contains an integrated high speed power supply in order ...

  • High pressure fluid phase equilibria 

    Du Rand, Marlie (Stellenbosch : Stellenbosch University, 2000-12)
    ENGLISH ABSTRACT: Supercritical extraction is being investigated as a possible alternative to the processes currently used in the fractionation of paraffinic waxes. By removing the lighter carbon fractions from the wax, ...

  • High speed cutting and electric discharge machining as complementary processes in the die and mould industry 

    Treurnicht, N. F. (Stellenbosch : Stellenbosch University, 2003-04)
    ENGLISH ABSTRACT: High Speed Cutting (HSC), specifically milling is a significant contemporary development in machining. The Die and Mould industry is experiencing a difficult business climate. There is competitive ...

  • High temperature phase equilibria in the Fe-Co-Cu-Si system pertinent to slag cleaning 

    Banda, Wezi (Stellenbosch : University of Stellenbosch, 2006-12)
    In the smelting of copper waste slags to recover cobalt and copper, the prediction of the metal liquidus temperature and the associated superheat for liquid metal handling for subsequent treatments cannot be done with ...

  • High voltage DC-DC converter using a series stacked topology 

    Van Rhyn, P. D. (Stellenbosch : University of Stellenbosch, 2006-03)
    This thesis presents the design and implementation of a high voltage DC-DC converter using a series stacked topology. The converter’s specifications were set by Spoornet and the converter forms part of a DC-AC inverter ...

  • High-power broadband absorptive waveguide filters 

    Stander, Tinus (Stellenbosch : University of Stellenbosch, 2009-12)
    ENGLISH ABSTRACT: This dissertation presents a synthesis method for broadband high-power absorptive microwave lters by cascading a wide stop-band wa e-iron lter with an absorptive harmonic pad. The classical image ...

  • High-Temperature Superconductor Step-Edge Fabrication for the Implementation of RSFQ Circuits 

    Snetler, Lukas Hendrick (Stellenbosch : University of Stellenbosch, 2005-03)
    High-temperature superconductive (HTS) logic has become a large research field worldwide. The HTS advantages compared to the low-temperature circuits are the reduced cooling requirements, increased or comparable operation ...

  • hiResilient response and performance of bitumen stabilized materials with foam incorporating reclaimed asphalt 

    Dal Ben, Matteo (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: The increased use of reclaimed asphalt (RA) in Bitumen Stabilised Materials (BSMs), shortcomings in the existing design guidelines and manuals and ongoing developments in the concepts and understanding ...

  • A historical examination of disruptive innovation management in the global media & entertainment industry 

    Pieterse, Petrus Jacobus (Stellenbosch : Stellenbosch University, 2012-03)
    ENGLISH ABSTRACT: "The goal of university research is the creation, dissemination, and preservation of knowledge." – Steven E. Hyman, Provost of Harvard University 2001–2011 The Department of Trade and Industry recently ...

  • An HMM-based automatic singing transcription platform for a sight-singing tutor 

    Krige, Willie (Stellenbosch : Stellenbosch University, 2008-03)
    A singing transcription system transforming acoustic input into MIDI note sequences is presented. The transcription system is incorporated into a pronunciation-independent sight-singing tutor system, which provides ...

  • Hot electron bolometer sensors for millimetre-wave and terahertz wave detection 

    Northeast, David Bernard (Stellenbosch : University of Stellenbosch, 2011-03)
    ENGLISH ABSTRACT: The design and simulation of hot electron bolometer sensors for the detection of millimeter and terahertz wave radiation is presented. These devices can be used for the formation of images or for ...