High-bandwidth fuel modulation is currently one of the most promising methods for active combustion control. To attenuate the large pressure oscillations in the combustion chamber, the fuel is pulsed so that the heat release rate fluctuations damp the pressure oscillations in the combustor. This thesis focuses on the development and implementation of a high-bandwidth, proportional modulation sy...

Analyzing and classifying atmospheric circulation patterns (CPs) is useful for studying climate variability. These classifications can effectively identify the links between large-scale regional-local scale processes. This work uses historical (1975–2014) projected (2015–2054) simulations of MPI-ESM1-2-HR model to reproduce CPs over Middle East Iran. Eighteen were identified based on geopotenti...

Multicasting, where a message is sent from one processor to number of other processors, can optimise the communication for data-parallel functional computing. This paper describes the introduction of two multicast primitives in the functional language Concurrent Clean. The usage and performance are showed, with special emphasis on the usage in combination with distributed arrays. In a data-para...

Ce document est publié dans l'intention de rendre accessibles les résultats préliminaires de la recherche effectuée au CIRANO, afin de susciter des échanges et des suggestions. Les idées et les opinions émises sont sous l'unique responsabilité des auteurs, et ne représentent pas nécessairement les positions du CIRANO ou de ses partenaires. This paper presents preliminary research carried out at...

This paper proposes a test statistic for the null hypothesis that a given time series is a stationary long memory process against the alternative hypothesis that it is of short memory, a¤ected by regime change or a smoothly varying trend. The proposed test is in the frequency domain and explores the derivatives of the pro…led local Whittle likelihood function in a degenerating neighborhood of t...

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