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 5 of 5 for “"Closure Phase"”.
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Investigating the Epoch of Cosmic Reionisation with Radio Interferometers
… of the cosmological signal by means of the closure phase, a calibration-independent interferometric quantity. The existing theoretical framework of this technique is extended by a rigorous derivation of the relationship between closure phases and the power spectrum of the cosmological …
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Disconnected interferometry at 81.5 MHz
… and specifically methods of improving its phase stability. The technique is used to reassess existing evidence for the existence of large-scale structure associated with the quasar 3C48, and to give a much better understanding of the structure and behaviour of the supernova remnant …
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Developing a quantitative framework for assessing and reporting mining's contributions to sustainable development
… significant operational differences between the phases of a mining operation. At the spatial scale, there is significant variation due to the adopted mining method, the size of the operation, the characteristics of the ore body, and the geological and geographical settings. Current sustainability …
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Developing a national mine closure risk and opportunities atlas in GIS for South Africa
… (Cole, 2024). While the impact of mine closure is well-known (Besa, et al., 2019), quantifying the extent of its impacts is not straightforward. This is particularly relevant in South Africa, where impacts may be localised due to variations in mining host community size, location, …
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Interferometric Methods
… in the Declaration. Moving on from this, the closure phase bispectrum is presented as a way of uncovering the cosmological Epoch of Reionisation signal from the H{\sc i} line. This is using the HERA telescope, which consists of a dense core of parabolic antennas in a highly redundant layout. A …