Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 3767 for “"Characterisation"”.
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Characterisation of peracids
Peroxides are of interest to the detergents industry for use as bleaching agents. However, peroxides have a history of being potentially or actually explosive. In this work two peracids were studied which were thought to be of relatively high stability. The first peracid was a single aliphatic …
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Radiometric partial discharge characterisation
The process of generation, transmission and distribution of electric energy appears to be very simple. However, the continuous flow of power through electric networks is affected by several factors, normally of two kinds: failures caused by ageing of insulating materials and failures caused by …
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Technology Venture Emergence Characterisation
… ventures operate. By demonstrating the characterisation of technology venture emergence, the conceptualisation of emergence archetypes and the strategy visualisation tool and process development, this research shows that applying roadmapping is an appropriate method to characterise and …
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Characterisation of propionibacterium acnes
Propionibacterium acnes forms part of the normal flora of the skin, oral cavity, large intestine and the external ear. Historically, P. acnes is considered to be of low virulence; however, in recent years it has been found as the aetiological agent in various pathologies including acne vulgaris, …
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Microscopic characterisation of photonic devices
The work presented in this thesis sets out to explore the optical properties of optical fibres by means of non-invasive microscopic techniques such as Differential Interference Contrast (DIC) microscopy. It seeks to provide the fibre optic industrial and research community with an alternative tool …
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Genetic Characterisation of Neurodegenerative disorders
Our global population is ageing and an ever increasing number of elderly are affected with neurodegenerative diseases, including the subjects of the studies in this work, Alzheimer's disease (AD), Parkinson's disease (PD), progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD). On …
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System characterisation under experimental constraints
Physically realising quantum computation is our long term goal. Currently characterising and verifying quantum states is a hard problem. Verification is necessary in order to understand and control quantum systems. There are also issues in the physical realisation of these systems, the apparatus …
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Characterisation of marama bean protein
Marama bean, Tylosema species, is an underutilised indigenous oilseed legume from Southern Africa. It is a very good source of protein, similar to soya beans and peanuts. The marama plant is very hardy and drought-tolerant. Therefore, it has great potential as an alternative to these other oilseed …
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Characterisation of silicon photonics devices
Silicon based integrated circuits has been dominating the electronics technology industry in the last few decades. As the telecommunications and the computing industry slowly converges together, the need for a material to build photonics integrated circuits (PIC) that can be cost-effective and be …
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Synthesis and characterisation of Acylhydrazinatometallomesogens
… at this institute involved the synthesis and characterisation of Ni2 complexes based on the N-alkylideneacylhydrazine ligand. The primary aims of this project were to synthesise and characterise a series of metallomesogens based on the N-allcylideneacylhydrazine ligand by studying the …
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Industrial brine characterisation and modelling
Industrial wastewater contains many soluble inorganic and organic components and solid particles. This study focused on inorganic industrial hypersaline brines. Chemical engineering presents a variety of mechanical, thermal, biological and chemical processes capable of treating hypersaline brines …
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Characterisation of protease activated receptors
The thrombin receptor is a seven transmembrane G-protein-coupled receptor that is activated by thrombin cleavage. In order to characterise the thrombin receptor three mouse monoclonal antibodies were isolated by using a recombinant fusion protein incorporating the extracellular domain of the human …
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Thermodynamic Characterisation of Amyloid Fibrils
Amyloid fibril related diseases include dementia, Alzheimer’s disease and Parkinsons disease and pose an increasingly large burden to global healthcare, due to the presence of an ageing population. Despite many healthcare advances, amyloid fibril diseases remain largely untreatable, with only …
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Characterisation of biodiesel from Litsea glutinosa
Submitted in complete fulfillment for the Degree of Master of Technology: Biotechnology, Durban University of Technology, Durban, South Africa, 2014.
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Microscopic characterisation of fibre Bragg gratings
The focus of this thesis is the study of microscopic characterization of optical fibres and fibre Bragg gratings, by the use of a non-invasive microscopic technique, namely differential interference contrast microscopy. The thesis aims to provide detailed information on the structural and optical …
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Characterisation of novel alpha1-adrenoceptor ligands
α1A-adrenoceptor (AR) antagonists used clinically to treat urogenital conditions, such as benign prostatic hyperplasia, have side effects due to a lack of subtype selectivity and the 5-HT1A-R off-target affinity. In this study, computer-aided drug design, structure-activity relationship, and …
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Enhanced structural characterisation of supported catalysts
… in this thesis aimed to provide more accurate characterisation of the size and shape of carbon supported nanoparticle catalysts. Both monometallic (Pt or Au) and bimetallic (PtPd) catalysts were studied. In the first results chapter the strengths and weaknesses of various structural …
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