Browsing Faculty of Engineering by Title

Now showing items 152-171 of 2027

    • Autonomous air-to-air refueling : a comparison of control strategies 

      Venter, Jeanne Marie (Stellenbosch : Stellenbosch University, 2012-03)
      ENGLISH ABSTRACT: The air-to-air refuelling of large aircraft presents challenges such as a long fuel transfer time, slow aircraft responses and a large distance between the aircraft CG and the receptacle position. This ...

    • Autonomous airborne refueling : relative state estimation 

      Runhaar, Anton Johan (Stellenbosch : Stellenbosch University, 2011-12)
      ENGLISH ABSTRACT: This thesis presents the development of a state estimation system for use in an Autonomous Airborne Refueling (AAR) operation through the simulated implementation of GPS, monocular and stereoscopic ...

    • Autonomous auscultation of the human heart 

      Botha, J. S. F. (Stellenbosch : University of Stellenbosch, 2010-03)
      ENGLISH ABSTRACT: The research presented in this thesis serves to provide a tool to autonomously screen for cardiovascular disease in the rural areas of Africa. Vital information thus obtained from patients can be ...

    • Autonomous docking for a satellite pair using monocular vision 

      Mienie, Dewald (Stellenbosch : University of Stellenbosch, 2009-03)
      Autonomous rendezvouz and docking is seen as an enabling technology. It allows, among others, the construction of larger space platforms in-orbit and also provides a means for the in-orbit servicing of space vehicles. In ...

    • Autonomous flight control system for an airship 

      Avenant, Gerrit Christiaan (Stellenbosch : University of Stellenbosch, 2010-03)
      ENGLISH ABSTRACT: In recent years, the use of airships has become popular for observation purposes since they provide a cost effective alternative to other aircraft. For this project a lateral and longitudinal flight ...

    • Autonomous flight of a model aircraft 

      Peddle, Iain K. (Stellenbosch : Stellenbosch University, 2005-03)
      The successful development of a conventional flight autopilot for a model aircraft is presented. All aspects of the autopilot design are considered, from modeling to flight tests. A mathematical aircraft model, as a ...

    • Autonomous landing of a fixed-wing unmanned aerial vehicle using differential GPS 

      Smit, Samuel Jacobus Adriaan (Stellenbosch : Stellenbosch University, 2013-03)
      ENGLISH ABSTRACT: This dissertation presents the design and practical demonstration of a flight control system (FCS) that is capable of autonomously landing a fixed-wing, unmanned aerial vehicle (UAV) on a stationary ...

    • The autonomous landing of an unmanned helicopter on a moving platform 

      Fourie, Christopher Kurt (Stellenbosch : Stellenbosch University, 2015-12)
      ENGLISH ABSTRACT: This work details the design and implementation of an autonomous landing system for an unmanned helicopter. The system was broken down in to two separate systems - an autonomous navigation and control ...

    • An autonomous, omnidirectional, digital, borehole imaging system 

      Sindle, Timothy Grant (Stellenbosch : Stellenbosch University, 2005-04)
      ENGLISH ABSTRACT: This thesis documents the research, design, implementation and successful testing of a prototype camera probe to survey the inside of hard rock boreholes. Rock core images are intended to aid mine ...

    • 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 ...

    • Barriers and the success factors for the implementation of the NEC within the civil engineering industry of South Africa 

      Van den Berg, Marijn (Stellenbosch : Stellenbosch University, 2015-03)
      ENGLISH ABSTRACT: After its introduction in 1993, the use of the NEC is still limited in the civil engineering industry of South Africa. The benefits of the NEC however appear to be promising. This research identifies ...

    • 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 ...