Browsing Faculty of Engineering by Title

Now showing items 876-895 of 2027

    • Fabrication of Josephson junctions using AFM nanolithography 

      Elkaseh, Akram Abdulsalam (Stellenbosch : University of Stellenbosch, 2010-12)
      ENGLISH ABSTRACT: Planar weak link structures, such as micro-bridges, variable thickness bridges and nanobridges, have always attracted a lot of attention. Their potential to behave as real Josephson elements make them ...

    • Fabrication of high-temperature superconducting nanobridges using atomic force microscopy 

      Elkaseh, Akram Abdulsalam (Stellenbosch : University of Stellenbosch, 2006-12)
      The Josephson effect of high-temperature superconducting nanobridge structures is studied worldwide. Until now, nanobridges are generally fabricated with focused ion beam milling on planar thin films. These nanobridges ...

    • The fabrication of PBCO buffered step-edge Josephson junctions 

      Van Staden, Wynand Fourie (2007-03)
      A major challenge in the design and operation of High Temperature Superconducting (HTS) devices is the fabrication of reproducible Josephson junctions with good IcRn products. One objective of this thesis was to fabricate ...

    • Face recognition using Hidden Markov Models 

      Ballot, Johan Stephen Simeon (Stellenbosch : University of Stellenbosch, 2005-03)
      This thesis relates to the design, implementation and evaluation of statistical face recognition techniques. In particular, the use of Hidden Markov Models in various forms is investigated as a recognition tool and ...

    • Facial Feature Reconstruction using Structure from Motion 

      Rautenbach, Pieter Albertus (Stellenbosch : University of Stellenbosch, 2005-03)
      Structure from Motion suggests that an object or scene’s three-dimensional structure can be determined from its observed two-dimensional motion. Human efforts, manifested in computer algorithms, try to mimic the ...

    • Factors influencing asphalt compactibility and its relation to asphalt rutting performance 

      Douries, William John (Stellenbosch : University of Stellenbosch, 2004-04)
      ENGLISH ABSTRACT: This thesis covers the factors affecting compactibility of hot mix asphalt including gradation, filler/binder ratios, binder types, binder content, polymer modification, temperature, volumetric properties ...

    • Fast accurate diphone-based phoneme recognition 

      Du Preez, Marianne (Stellenbosch : University of Stellenbosch, 2009-03)
      Statistical speech recognition systems typically utilise a set of statistical models of subword units based on the set of phonemes in a target language. However, in continuous speech it is important to consider co-articulation ...

    • Fast analysis of a compound large reflector antenna 

      Alphonse, Stephanie (Stellenbosch : Stellenbosch University, 2012-03)
      ENGLISH ABSTRACT: The o set Gregorian dual re ector antenna is eminently well suited to a radio telescope antenna application as it o ers a narrow beam width pattern (i.e high gain) and good e ciency. The focus of this ...

    • Fast design and optimisation of one-dimensional microstrip patch antenna arrays 

      Klopper, Brandt (Stellenbosch : Stellenbosch University, 2016-03)
      ENGLISH ABSTRACT: This thesis proposes a method for the design of one-dimensional, uniformly spaced, nonuniform amplitude microstrip patch antenna arrays using computationally inexpensive transmission-line models and space ...

    • Fast parametric modeling of radio astronomy reflector antenna noise temperature 

      De Villiers, Dirk I. L. (Institute of Electrical and Electronics Engineers, 2016)
      This communication presents an approximate method to rapidly estimate the antenna noise temperature of a reflector antenna system as a function of the geometric parameters describing the reflector dishes. The initial ...

    • Fast pyrolysis of corn residues for energy production. 

      Danje, Stephen (Stellenbosch : Stellenbosch University, 2011-12)
      ENGLISH ABSTRACT: Increasing oil prices along with the climate change threat have forced governments, society and the energy sector to consider alternative fuels. Biofuel presents itself as a suitable replacement and has ...

    • Fatigue performance of seals 

      Cloete, Romei Christeline (Stellenbosch : Stellenbosch University, 2015-12)
      ENGLISH ABSTRACT: Thin bituminous surfacings, in particular sprayed seals, are used quite extensively in various countries because they provide a low cost alternative to conventional asphalt. Seals furthermore provide an ...

    • Fault tolerant adaptive control of an unmanned aerial vehicle 

      Basson, Willem Albertus (Stellenbosch : Stellenbosch University, 2011-12)
      ENGLISH ABSTRACT: This thesis presents the development of an adaptive longitudinal control system for an unmanned aerial vehicle (UAV). The project forms part of a research effort at Stellenbosch University into different ...

    • Fault tolerant flight control of a UAV with asymmetric damage to its primary lifting surface 

      Beeton, Wiaan (Stellenbosch : Stellenbosch University, 2013-12)
      ENGLISH ABSTRACT: In this thesis the design, analysis, implementation, and verification of a fault-tolerant unmanned aerial vehicle (UAV) flight control system which is robust to structural damage causing the natural ...

    • Feasibility of the PowerPc 603ETM for a LEO satellite on-board computer 

      Vos, Jacu (Stellenbosch : Stellenbosch University, 2002-12)
      ENGLISH ABSTRACT: For space designs, just as for terrestrial applications, the appetite for more computing power is virtually insatiable. Further, like portable applications, space use implies severe power constraints. ...

    • Feasibility of using an ARM processor in a micro satellite on-board computer 

      Barnard, Arno (Stellenbosch : Stellenbosch University, 2001-12)
      ENGLISH ABSTRACT: After SUNSAT was launched in 1999 and the possibility of developing another micro satellite emerged, areas of possible improvement were identified. Among the suggestions that emerged was the idea of ...

    • Feasibility study and business plan for manufacturing a 3 kW-electrical solar Stirling engine and dish for stand-alone power supply units 

      Kayofa, Lilongeni (Stellenbosch : Stellenbosch University, 2015-12)
      ENGLISH ABSTRACT: Africa has some of the richest solar resource regions in the world. These remain largely untapped. Meanwhile, numerous rural communities in Africa are without access to electricity. Rural communities are ...

    • Feasibility study for wind power at SAB Newlands 

      Brosius, Walter (Stellenbosch : University of Stellenbosch, 2009-12)
      This paper describes a MEng thesis project for a MEng in Renewable Energy Systems program at the Centre for Renewable Energy Studies at the University of Stellenbosch, South Africa. The aim of this paper was to offer ...

    • Feasibility study of a moon sensor for satellite attitude determination 

      Skinner, Robert Edmid (Stellenbosch : Stellenbosch University, 2005-12)
      ENGLISH ABSTRACT: The purpose of this study was to investigate the feasibility of a moon sensor as an alternative or supplemental sensor to supply attitude information to a satellite. The visibility of the moon was ...

    • A feasibility study of utilising shipping containers to address the housing backlog in South Africa 

      Botes, Antoni Willem (Stellenbosch : Stellenbosch University, 2013-12)
      ENGLISH ABSTRACT: The current housing backlog facing the informal residents of South Africa is daunting. With current research showing that the backlog is not shrinking fast enough, the stakeholders of the formal and ...