Showing papers by "Marina Neophytou published in 2010"
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TL;DR: In this paper, the authors present the outline, goals and methodology of this research project and the findings regarding the energy behaviour and other characteristics of the residential building stock of Cyprus based on the analysis of the results for 500 residential buildings, it seems that the energy demand and primary energy required is lower than that of other European countries.
64 citations
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TL;DR: In this article, the authors report on the first tracer dispersion experiment carried out in May 2003 and compare the results of concurrent meteorological measurements with a simple dispersion model and maximum concentrations observed.
26 citations
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TL;DR: In this paper, a large scale urban tracer experiment using multiple simultaneous releases of cyclic perfluoroalkanes from fixed location point sources was performed using three screening dispersion models in order to best predict the decay of pollution sources with respect to distance.
22 citations
01 Jan 2010
TL;DR: In this article, an empirical model relating the yield stress to material and flow parameters is proposed to correlate the rheological parameters of SCC matrix, yield stress and plastic viscosity, to slump flow measurements.
Abstract: The classification of a concrete mixture as self-compacting (SCC) is performed by a series of empirical characterization tests that have been designed to assess not only the flowability of the mixture but also its segregation resistance and filling ability. The objective of the present work is to correlate the rheological parameters of SCC matrix, yield stress and plastic viscosity, to slump flow measurements. The focus of the slump flow test investigation was centered on the fully yielded flow regime and an empirical model relating the yield stress to material and flow parameters is proposed. Our experimental data revealed that the time for a spread of 500 mm which is used in engineering practice as reference for measurement parameters, is an arbitrary choice. Our findings indicate that the non-dimensional final spread is linearly related to the non-dimensional yield-stress. Finally,there are strong indications that the non-dimensional viscosity of the mixture is associated with the non-dimensional final spread as well as the stopping time of the slump flow; this experimental data set suggests an exponential decay of the final spread and stopping time with viscosity.
3 citations