Browsing Faculty of Engineering by Title

Now showing items 125-144 of 1612

  • Bacterial production of antimicrobial biosurfactants 

    Ballot, Francis (Stellenbosch : University of Stellenbosch, 2009-03)
    Surfactants are compounds that reduce interfacial surface tension, resulting in detergency, emulsifying, foaming and dispersing properties. Surfactants produced via biochemical processes (biosurfactants) form a niche market ...

  • Bacterial production of antimicrobial biosurfactants by Bacillus subtilis. 

    Bence, Keenan (Stellenbosch : Stellenbosch University, 2011-12)
    ENGLISH ABSTRACT: Biosurfactants are microbially produced molecules that show excellent surface-active properties. Bacillus subtilis ATCC 21332 produces the biosurfactant, surfactin, which exhibits antimicrobial activity ...

  • Balancing runtime space- and time complexity in synthetic database driven hand posture reconstruction systems 

    De Villiers, H. A. C.; Niesler, T. R.; Van Zijl, L. (PRASA, 2010-11)
    Hand posture reconstruction systems based on large databases of synthetically rendered images of a 3D hand model offer a simple and flexible means of exploiting domain knowledge to provide training data. Such systems ...

  • Baseband compensation principles for defects in quadrature signal conversion and processing 

    Van Rooyen, Gert-Jan (Stellenbosch : Stellenbosch University, 2004-04)
    ENGLISH ABSTRACT: Keywords: software-defined radio, SDR, quadrature mixing, quadrature modulation, quadrature demodulation, digital compensation, software radio, direct-digital synthesis, DDS. An often-stated goal of ...

  • Beamforming for radio astronomy 

    Van Tonder, Vereese (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: Beamforming is a technique used to combine signals from an array of antennas to effectively synthesize a single aperture and beam. In the Radio Astronomy community the technique is used to obtain a ...

  • The behaviour of fibre reinforced concrete (SHCC) under biaxial compression and tension 

    Swanepoel, Willie (Stellenbosch : Stellenbosch University, 2011-12)
    ENGLISH ABSTRACT: Strain hardening cement‐based composites (SHCC) are fibre‐reinforced composites designed to form multiple fine cracks under tensile and flexural load. The cracks are controlled to small widths, ...

  • The behaviour of reinforced concrete cantilever columns under lateral impact load 

    Loedolff, Matthys Johannes (Stellenbosch : Stellenbosch University, 1989-12)
    ENGLISH ABSTRACT: see item for full text

  • The behaviour of strain-hardening cement composites under biaxial compression 

    Molapo, Katiso Tokoloho (Stellenbosch : University of Stellenbosch, 2010-12)
    ENGLISH ABSTRACT: Reinforced concrete is susceptible to cracking. This makes it less durable than it would be had it been crack-free. Ingress of harmful substances into reinforced concrete through cracks – which causes ...

  • Benchmarking full-body inertial motion capture for clinical gait analysis 

    Cloete, Teunis (Stellenbosch : University of Stellenbosch, 2009-03)
    Clinical gait analysis has been proven to greatly improve treatment planning and monitoring of patients suffering from neuromuscular disorders. Despite this fact, it was found that gait analysis is still largely underutilised ...

  • Benchmarking in the South African tool and die manufacturing industry 

    Malherbe, D.C. (Stellenbosch : University of Stellenbosch, 2007-03)
    The supply of manufactured products depends on tool, die and mould (TDM) manufacturing. The TDM industry provides the machines, tools and equipment necessary to produce most manufactured components. The TDM industry is ...

  • Bend diversion to minimise sediment intake 

    Brink, C.J. (Stellenbosch : University of Stellenbosch, 2004-12)
    ENGLISH ABSTRACT: The primary aim of the research was to determine the optimum diversion location in a curved channel to minimise the abstraction of sediment. The secondary aim was to determine the optimum diversion angle ...

  • Benefits to processor load for quadrature baseband versus radio frequency demodulation algorithms 

    Ndovi, Lusungu (Stellenbosch : Stellenbosch University, 2008-12)
    The continued advancement and improvement of software-defined radio technology has been a key factor in furthering research into the implementation of most signal processing algorithms at baseband. Traditionally, these ...

  • Best practice of crane support structures design : an expert survey 

    Thompson, Geoffrey (Stellenbosch : University of Stellenbosch, 2007-12)
    Research on cranes and crane support structures has been completed at Stellenbosch University’s Structural Division. In order to link the research already completed with that which is practically relevant, an industry ...

  • A bi-directional, direct conversion converter for use in household renewable energy systems 

    Schutte, Adriaan Nicholaas (Stellenbosch : University of Stellenbosch, 2009-03)
    A bi-directional, direct conversion switch-mode converter is proposed for use in distributed household renewable energy systems. The converter is intended as the central interface between the household energy system’s low ...

  • Bidirectional converter for a stirling energy system 

    Redecker, H. H. (Hans Henning) (Stellenbosch : University of Stellenbosch, 2004-12)
    ENGLISH ABSTRACT: This thesis discusses a 23 kW three-phase AC bus system that is utilized together with the “Stirling Energy System (SES) Integrated Solar Dish-Stirling Module” to function as a mini-grid for off-grid ...

  • The bio-disposal of lignocellulose substances with activated sludge 

    Qi, Bing Cui (Stellenbosch : Stellenbosch University, 2001-03)
    ENGLISH ABSTRACT: Lignocellulose is the principal form of biomass in the biosphere and therefore the predominant renewable source in the environment. However, owing to the chemical and structural complexity of lignocellulose ...

  • Biochar from vacuum pyrolysis of agricultural residues : characterisation and its applications. 

    Uras, Umit (Stellenbosch : Stellenbosch University, 2011-12)
    ENGLISH ABSTRACT: According to recent studies, biochar has the potential to improve soil fertility, mitigate climate change, reduce off-site pollution and assist in managing wastes. The application of biochar to soil is ...

  • Bioconversion of alkylbenzenes by Yarrowia lipolytica 

    Lind, Aingy Chantel (Stellenbosch : University of Stellenbosch, 2009-03)
    The abundance of alkane by-products formed in South Africa presents a feedstock opportunity for the production of a wide range of commercially important products, such as long-chain dioic acids and alcohols. These compounds ...

  • Biodiesel analytical development and characterisation. 

    Prah, Ebenezer (Stellenbosch : University of Stellenbosch, 2010-03)
    ENGLISH ABSTRACT: Development of analytical methods to characterise biodiesel has become central to the overall success of the marketing of biodiesel fuel. In this regard, different bodies including the American Society ...

  • Biological treatment of source separated urine in a sequencing batch reactor 

    McMillan, Morgan (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: Urine contains up to 80% of nitrogen, 50 % of phosphates and 90 % of potassium of the total load in domestic wastewater but makes up less than 1% of the total volume (Larsen et al., 1996). The source ...