Recent Submissions

  • Multi-spectral object tracking and prediction of kinematic quantities 

    Buckton, Calib Jonas (Stellenbosch : Stellenbosch University, 2021-12)
    ENGLISH ABSTRACT: -The use of convolutional neural networks in object identification is well-documented and useful in a variety of applications. Particularly, when combined with a tracking algorithm such as SORT or ...
  • Universal scaling and dynamics at quantum phase transitions in the Kitaev Chain 

    King, Emma Catherine (Stellenbosch : Stellenbosch University, 2021-12)
    ENGLISH ABSTRACT: Experimental advances in ultracold gases present physicists with the opportunity to explore a diverse range of new phenomena in a controllable manner. In turn, this has fuelled significant interest in ...
  • Light sheet fluorescence microscopy 

    Badrodien, Imraan (Stellenbosch : Stellenbosch University, 2021-03)
    ENGLISH ABSTRACT: Light sheet fluorescence microscopy is a powerful tool within the in field of microscopy. The inherent advantages over other fluorescence microscopy techniques include high sectioning capabilities, ...
  • Towards the development of a MIR NOPA for time-domain ptychography 

    De Beer, Anthonie (Stellenbosch : Stellenbosch University, 2021-03)
    ENGLISH ABSTRACT: This thesis discusses a noncollinear optical parametric amplifier as a source of ultrafast mid-infrared light for spectroscopic experiments and aims to provide a consistent method for the generation ...
  • Radon levels in South African homes - design elements for a national survey and initial results from directed sampling 

    Maheso, Abbey Matimba (Stellenbosch : Stellenbosch University, 2021-03)
    ENGLISH ABSTRACT: Radon (222Rn) is an inert, colourless, odourless radioactive gas that is generated by the alpha decay of radium (226Ra), a radionuclide in the uranium (238U) decay series. Radon (222Rn) is the primary ...
  • A review of the measurement problem in quantum mechanics 

    Pittaway, Ian Bennet (Stellenbosch : Stellenbosch University, 2021-03)
    ENGLISH ABSTRACT: Quantum Mechanics has been a massively successful theory, but for all its success it is at odds with our experiences at the macroscopic or classical level. This tension between the quantum and classical ...
  • Data modelling & Bayesian model comparison with spherically symmetric priors 

    Jamodien, Riyaadh (Stellenbosch : Stellenbosch University, 2020-12)
    ENGLISH ABSTRACT: The analysis of data is common in many fields of science, and modelling data is one of the standard techniques in such analysis. Models are, of course, not unique and many theoretical models may be ...
  • Laser frequency stabilization for trapped Yb+ experiments 

    Janse van Rensburg, Deon Anton (Stellenbosch : Stellenbosch University, 2020-12)
    ENGLISH ABSTRACT: This project sets out to frequency stabilize external cavity diode lasers of wavelengths = 935 nm and 739 nm, with an eye to Ytterbium-171 ion trapping. The desired laser linewidths were below 1 MHz ...
  • Heavy-quark production via leptonic decays at forward rapidity in pp collisions with ALICE at the LHC 

    Monteverdi, Christine Marie (Stellenbosch : Stellenbosch University, 2020-12)
    ENGLISH ABSTRACT: The measurements for the study of heavy-quark production in proton-proton (pp) collisions with ALICE at Large Hadron Collider (LHC) energies are described. Heavy-quarks (charm and beauty) are produced ...
  • Modelling assemblage organisation of African Odonata 

    Basel, Ashleigh Megan (Stellenbosch : Stellenbosch University, 2020-12)
    ENGLISH ABSTRACT: Climate change is expected to cause large range shifts of species assemblages, especially for climate-sensitive taxa, such as dragonflies and damselflies (Insecta: Odonata). I investigated odonate species ...
  • Evidence estimation using stochastic likelihood approximations 

    Cameron, Scott (Stellenbosch : Stellenbosch University., 2020-04)
    ENGLISH ABSTRACT: We consider the problem of estimating evidence for parametric Bayesian models in the large data regime. Many existing evidence estimation algorithms scale poorly due to their need to repeatedly calculate ...
  • The analysis of multi-clustering in heavy nuclei 

    Carolus, Timothy Gary (Stellenbosch : Stellenbosch University., 2020-04)
    ENGLISH ABSTRACT: The binary cluster model is the simplest mathematical model which is used to describe a system of strongly interacting, and highly correlated nuclear matter. This study will serve as a means to better ...
  • Large deviations of reflected diffusions 

    Du Buisson, Johannes Petrus (Stellenbosch : Stellenbosch University., 2020-04)
    ENGLISH ABSTRACT: We study the fluctuations of time-integrated functionals of Markov diffusions evolving in a bounded domain. These fluctuations can be described in large deviation theory by the so-called rate function, which ...
  • Probabilistic graphical modelling of seismic data processing in mining 

    Du Toit, Cornel (Stellenbosch : Stellenbosch University., 2020-04)
    ENGLISH ABSTRACT: Mining has long been characterised by deep shafts and dangerous conditions. Accurate monitoring and prediction of seismic activity and rockfalls are matters of life and death. The Institute of Mine ...
  • Natural radioactivity in soils of Ijero, Nigeria: measurements and risk assessment 

    Bailey, Tarryn (Stellenbosch : Stellenbosch University, 2019-12)
    ENGLISH ABSTRACT: Several soil samples were obtained from Ijero, Nigeria, where the chemical and radio-toxicity of soil is under question due to ongoing and unregulated mining activities. The soil samples were crushed, ...
  • Single molecule diffusion in polymeric systems 

    Sibanda, Charmaine (Stellenbosch : Stellenbosch University, 2019-04)
    ENGLISH ABSTRACT : The dynamics of thin polymeric systems were studied in this research work using the diffusion of single fluorescent molecules observed by single molecule fluorescence microscopy. A wide field single ...
  • Spectroscopy of atomic zinc inside a heat pipe: Towards resonance ionisation 

    Hattingh, Brandon Dane (Stellenbosch : Stellenbosch University, 2019-04)
    ENGLISH ABSTRACT : Zinc (Zn) reserves in South Africa are not being used to full potential. Separating Zn into its different stable isotopes drastically increases its value, as well as usefulness in certain areas such ...
  • Thermalisation of a two-species condensate coupled to a bosonic bath 

    Louw, Jan Cillié (Stellenbosch : Stellenbosch University, 2019-04)
    ENGLISH ABSTRACT : Motivated by recent experiments, we study the time evolution of a two-species Bose-Einstein condensate which is coupled to a bosonic bath. For the particular condensate, unconventional thermodynamics ...
  • Resonance ionization spectroscopy with time of flight mass spectrometry 

    Waso, Frederick John (Stellenbosch : Stellenbosch University, 2019-04)
    ENGLISH ABSTRACT : Resonance ionization using laser light is one of the most useful techniques for isolating radioactive isotopes and producing radioactive ion beams at accelerator facilities around the world. The aim of ...
  • Towards atomic physics using spatially structured light 

    Webster, Jason (Stellenbosch : Stellenbosch University, 2018-12)
    ENGLISH ABSTRACT : Structured light has seen many applications in the fields of telecommunications, optical microscopy, and quantum information processing, however, few works exist that explore the interactions of ...

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