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Theses and Dissertations (Physics): Recent submissions
Now showing items 101-120 of 194
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(University of Pretoria, 2017)The aims of this research thesis are to synthesise VO2, V2O5 and V6O13 nanostructures and apply the materials on sensor electrodes for gas and humidity sensing. These materials were synthesised and optimised using chemical ...
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(University of Pretoria, 2018)The work presented in this thesis arose from the requirement in the military environment to obtain infrared radiation source/signature values of target objects usually of interest to infrared missiles under development. ...
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(University of Pretoria, 2017)Silicon carbide (SiC) is used as the main diffusion barrier to prevent the fission products (FPs) from escaping in high temperature reactors (HTRs). It retains most of the FPs quite effectively with the exception of silver, ...
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(University of Pretoria, 2017)The goal of this thesis is to produce NiO- and Ni(OH)2-carbon based nanocomposites and explore their possible adoption as active electrode materials in supercapacitor and gas sensing applications. Field-emission scanning ...
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(University of Pretoria, 2017)This project concerns the understanding of the thermodynamic properties of higher spin black holes in AdS3. Through the conjectured Minimal Model/Higher Spin duality, the partition functions of such black holes should ...
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(University of Pretoria, 2017)The abstract contains mathematical symbols and do not display correctly. It can be read in the document attached.
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(University of Pretoria, 2017)Global energy demands have escalated over the past few decades, creating a necessity for alternative energy sources. Solar technologies inspired by the primary solar energy storing process known on earth, photosynthesis, ...
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(University of Pretoria, 2016)The fundamental mechanisms involved in photosynthesis provide an opportunity to study physical principles that span over both classical and quantum scales. A better understanding of these mechanisms will benefit the ...
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(University of Pretoria, 2016)In this research study, we proposed a model that describes the formation of thin-film of an AB compound layer at the interfaces of two immiscible solid layers A and B under the influence of irradiation. However, we begin ...
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(University of Pretoria, 2016)The majority of injuries and casualties during earthquakes occur as a result of partial or complete collapse of buildings. The assessment of possible seismic ground motions for the purposes of earthquake-resistant design ...
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(University of Pretoria, 2016)The aim and objectives of this work are to synthesize cobalt-based hydroxides and transition metal disulphides composites with carbon materials such as graphene foam and activated carbon by a facile and environmentally ...
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(University of Pretoria, 2017)Germanium exhibits electron and hole mobilities that are higher than silicon. These unique properties make Ge a promising material for the development of metal-oxide semiconductor eld e ect transistors (MOSFETs). Point ...
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(University of Pretoria, 2016)The main question that has been answered in this research project is: what happens to the singularities of the S-matrix when the interaction potential becomes complex? In other words, we looked at the resonance spectral ...
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(University of Pretoria, 2016)Almost all of the energy that sustains life on Earth was captured from sunlight during the process of photosynthesis. In the first step of this process, photons are absorbed by aggregates of pigment molecules called ...
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(University of Pretoria, 2016)Silicon carbide (SiC) is both used as a diffusion barrier in Tristructural Isotropic (TRISO) coated nuclear fuel particles in nuclear reactors and as a wide band gap semiconductor in microelectronics applications. SiC has ...
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(University of Pretoria, 2016)Despite its favourability as a substrate in chemical vapour deposition (CVD), copper (Cu) substrate has a challenge of growing uniform large-area bilayer graphene films with continuous Bernal (AB) stacking. However, ...
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(University of Pretoria, 2016)I present new 1.6 GHz VLBI observations of sample of 43 radio sources in the Southern celestial Hemisphere. My goals were firstly to establish the suitability of the 43 sources as calibrators for 1.6 GHz VLBI observations, ...
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(University of Pretoria, 2016)The Leigh-Strassler theories are marginal deformations of the N = 4 SYM theory preserving N = 1 Supersymmetry. As such they admit a Hopf algebra structure which is a quantum group deformation of the SU(3) structure of the ...
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(University of Pretoria, 2016)Gallium arsenide (GaAs) technology leads the implementation of high frequency devices with superior performance. A vast number of optoelectronic applications are based on the material owing to its direct and wide bandgap. ...
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(University of Pretoria, 2015)Devices for operation in aerospace, manufacturing industries, defence and radiation-harsh environments need to be manufactured from materials that are resistant to the frequent damage caused by irradiation and high-temperature ...
Now showing items 101-120 of 194