MPhil theses from Aberystwyth University http://hdl.handle.net/2160/497 2013-05-25T15:00:11Z 2013-05-25T15:00:11Z Swann, Stephen Paul http://hdl.handle.net/2160/7855 2012-06-25T14:35:53Z 2011-01-01T00:00:00Z

Have recent changes in mental health legislation and policy provided any positive gains for service users in England and Wales? Swann, Stephen Paul

2011-01-01T00:00:00Z March, Daniel http://hdl.handle.net/2160/7853 2012-06-21T11:28:41Z 2012-01-01T00:00:00Z

Plasma D-lactate as a marker of exercise induced changes in intestinal permeability March, Daniel

2012-01-01T00:00:00Z Shipman, Richard Charles http://hdl.handle.net/2160/7583 2011-09-22T09:00:57Z 2011-09-01T00:00:00Z

A multi-level, multi-purpose qualitative network flow analysis technique Shipman, Richard Charles Research at Aberystwyth into qualitative simulation of electrical circuits has been word-leading for nearly two decades. During that time, the Advanced Reasoning Group has developed a variety of electrical circuit simulators. The most successful, CIRQ, has been deployed for more than ten years in industrially useful design analysis systems, and has undergone a range of improvements over that time. MCIRQ is a more advanced version of CIRQ that was developed on the Design for the Whole Vehicle, Whole Lifecycle EPSRC Project at Aberystwyth. It is able to reason about circuits with multiple levels of qualitative resistance, and to indicate the different levels of current activity in the circuit. It showed great promise of being able to assist the design analysis systems in producing improved analysis reports, but was never deployed industrially because it was not able to analyse as wide a set of circuits as the original CIRQ software. This thesis describes a reimplementation of MCIRQ for use with both electrical and fluid flow systems. It extends the theory of electrical qualitative analysis in several ways, and makes several improvements to the original version of MCIRQ: It replaces the Forward-Reverse labelling system of path finding with Series- Parallel reduction system to determine current magnitude and direction. It improves the Star-Delta Reduction algorithm to deal with problem cases that do not occur in well-formed electrical circuits, but which do occur in the circuits with failure that are dealt with in failure analysis work. It extends MCIRQ to deal with many bridge circuits that were impossible to resolve in the previous version of MCIRQ. It introduces a principled strategy for resolving the direction of current flow within the circuit. The overall effect of these improvements is to transform MCIRQ into a qualitative analysis tool that can be used for real world applications. The thesis illustrates the kinds of analysis that can now be done by MCIRQ that was impossible before. The new MCIRQ has been employed on the ASTRAEA project. It has made possible applications of design analysis for engineering systems that could not have been addressed by any of the previous circuit analysers, notably in the domain of systems with both electrical and hydraulic aspects.

2011-09-01T00:00:00Z Morgans, Lowri http://hdl.handle.net/2160/6246 2011-03-30T06:55:35Z 2011-01-01T00:00:00Z

Iaith y Corff yn y Chwedlau Canoloesol Cymraeg Morgans, Lowri Er bod cryn dipyn o waith ymchwil wedi ei wneud yn barod ar y chwedlau canoloesol Cymraeg gan nifer o ysgolheigion ar draws y byd, nid oes neb wedi ymchwilio i iaith y corff, ei phwysigrwydd a’i swyddogaeth yn y rhyddiaith ganoloesol Gymraeg. Sylwais yn ogystal fod y pwnc wedi cael ei olrhain yn barod yn y llenyddiaeth Ffrangeg, yn llenyddiaethau Groeg a Rhufain a hefyd yn yr iaith Saesneg, yn enwedig gwaith Chaucer. Y mae’r maes hwn yn ogystal wedi cael ei archwilio’n rhannol yn barod o safbwynt y celfyddydau megis celf a drama. Gwelais felly fod yna fwlch amlwg yma o ran astudiaethau ar iaith y corff mewn llenyddiaeth ganoloesol Gymraeg. Bwriadaf edrych yn fanwl iawn ar yr un ar ddeg o chwedlau canoloesol Cymraeg sef Y Pedair Cainc, Y Tair Rhamant, Cyfranc Lludd a Llefelys, Breudwyt Maxen Wledic, Breudwyt Ronabwy a Kulhwch ac Olwen gan chwilio am enghreifftiau gwahanol o iaith y corff yn y testunau yma. Rwyf wedi penderfynu rhannu’r traethawd yn chwe phennod. Yn y bennod gyntaf trafodaf y gwaith theoretig yn gyffredinol ar y corff. Yn yr ail edrychaf yn benodol ar bryd a gwedd cymeriadau gan ganolbwyntio ar wallt, rhannau o’r corff sy’n cael sylw penodol a hefyd disgrifiadau o gymeriadau. Yn y drydedd bennod trafodaf y côd ymddygiad gan edrych ar sut y mae pobl yn cyfarch ei gilydd ac ymddygiad sefyllfaoedd arbennig. Yn y bedwaredd bennod rhoddaf sylw i safleoedd cymeriadau gan edrych yn benodol ar bwy sydd â’r pŵer yn y sefyllfaoedd hyn. Yna yn y bumed bennod fe drafodaf arwyddocâd edrychiadau gwahanol a hefyd y ffordd y mae cymeriadau’n ymserchu yn ei gilydd. Yn y bennod olaf rhoddaf sylw i ystumiau geiriol sydd eto’n dweud llawer wrthym am bersonoliaeth cymeriadau. Mae’r maes hwn yn gyffrous iawn a gobeithiaf y bydd hyn yn agor drysau i eraill ddilyn yn ôl fy nhroed o safbwynt llenyddiaeth ganoloesol Gymraeg.

2011-01-01T00:00:00Z