993 resultados para Mathematical English


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Place-names are a fundamental concept in all academic collections: everything happens somewhere. Contemporary place-names are comprehensively represented in digital gazetteer and geospatial web services such as GeoNames. However, despite millions of pounds of investment by JISC and other agencies in historical online resources in recent years, there is currently no equivalent for historic place-names. This project will digitize the entire 86 volume corpus of the Survey of English Place-Names (SEPN), the ultimate authority on historic place-names in England, and make its 4 million forms available.

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This article focuses on a type of prognostication that bases its predictions on the behavior of the wind during the twelve nights of Christmas and in particular on the relationship between the Old English version in Oxford, Bodleian, Hatton 115, and a fourteenth/fifteenth-century English text in Latin of the same prognostication, which appears in Oxford, Bodleian, Ashmole 345, fol. 69r. The wind prognostication in Ashmole 345 is remarkably similar to the twelfth-century OE version in Hatton 115, fol. 149v, to the extent that one might be tempted to argue for direct transmission, if it were not for the large temporal gap between the two manuscripts and for the fact that the two texts are being transmitted in two different languages. Interestingly the Latin text in A contains an Old English word that may make us reconsider the relationship between the two manuscripts and may shed light on the reception and transmission of Old English and prognostication by the wind between the end of the fourteenth and the beginning of the fifteenth centuries in English monastic centers.

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Modern internal combustion (IC) engines reject around two thirds of the energy provided by the fuel as low-grade waste heat. Capturing a portion of this waste heat energy and transforming it into a more useful form of energy could result in a significant reduction in fuel consumption. By using the low-grade heat, an organic Rankine cycle (ORC) can produce mechanical work from a pressurised organic fluid with the use of an expander.
Ideal gas assumptions are shown to produce significant errors in expander performance predictions when using an organic fluid. This paper details the mathematical modelling technique used to accurately model the thermodynamic processes for both ideal and non-ideal fluids within the reciprocating expander. A comparison between the two methods illustrates the extent of the errors when modelling a reciprocating piston expander. Use of the ideal gas assumptions are shown to produce an error of 55% in the prediction of power produced by the expander when operating on refrigerant R134a.

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Malone, C.,989, London: Batsford. Reprinted, 1989, 2nd edition 1994.

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Malone, C., 1989, London: Batsford. Reprinted, 1989, 2nd edition 1994.

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Malone, C., 1990, (numerous reprints and in several languages), London, HBMC-English Heritage.

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Malone, C., 1990, (numerous reprints and several languages), London, HBMC-English Heritage.

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This article reconstructs British constitutional policy in Northern Ireland after power-sharing collapsed in May 1974. Over the following two years, the British government publicly emphasised that Northern Ireland would decide its own future, but ministers secretly considered a range of options including withdrawal, integration and Dominion status. These discussions have been fundamentally misunderstood by previous authors, and this article shows that Harold Wilson did not seriously advocate withdrawal nor was policy as inconsistent as argued elsewhere. An historical approach, drawing from recently released archival material, shows that consociationalists such as Brendan O'Leary and Michael Kerr have neglected the proper context of government policy because of their commitment to a particular form of government, failing to recognise the constraints under which ministers operated. The British government remained committed to an internal devolved settlement including both communities but was unable to impose one.