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Full-Text Articles in Engineering
Phase-Distortion-Robust Voice-Source Analysis, Alan O'Cinneide
Phase-Distortion-Robust Voice-Source Analysis, Alan O'Cinneide
Doctoral
This work concerns itself with the analysis of voiced speech signals, in particular the analysis of the glottal source signal. Following the source-filter theory of speech, the glottal signal is produced by the vibratory behaviour of the vocal folds and is modulated by the resonances of the vocal tract and radiation characteristic of the lips to form the speech signal. As it is thought that the glottal source signal contributes much of the non-linguistic and prosodical information to speech, it is useful to develop techniques which can estimate and parameterise this signal accurately. Because of vocal tract modulation, estimating the …
A Stochastic Hybrid Embodied Energy And Co2_Eq Intensity Analysis Of Building And Construction Processes In Ireland, Adolf Acquaye
A Stochastic Hybrid Embodied Energy And Co2_Eq Intensity Analysis Of Building And Construction Processes In Ireland, Adolf Acquaye
Doctoral
Given a general lack of research on Irish construction greenhouse gas emissions, a subsectoral embodied carbon dioxide equivalent (CO2-eq) analysis of this sector has been undertaken with the aim of overcoming some methodological challenges such as system boundary constraints, input-output aggregation, double counting of energy inputs and a general lack of data. Using this extended methodology, it is estimated that total embodied CO2-eq intensity of Irish construction in 2005 was 1,364gCO2-eq/€ with direct sub-sectoral embodied CO2-eq intensity averaging 56 gCO2-eq/€. Some 215gCO2-eq/€ is estimated to arise from domestic sources including 160gCO2-eq/€ from domestic indirect emissions. International arising emissions constituted 84% …
Systematic Analysis Of Unknown Integrated Circuits, Michael Brutscheck
Systematic Analysis Of Unknown Integrated Circuits, Michael Brutscheck
Doctoral
In recent years the efficient and structured analysis of unknown CMOS integrated circuits (ICs) has attracted a lot of interest. Over the last decade different and non-invasive strategies have been developed to analyse unknown ICS. However, invasive procedures must always lead to the destruction of the system under investigation. Non-invasive approaches published so far have the disadvantage that ICs are analysed using very complex and very time consuming algorithms. The focus of this thesis is to develop a non-invasive and efficient procedure to determine fully unclassified digital CMOS ICs solely by their input-output behaviour. In this research, automata theory was …