Browsing by Author "Ioannou, I."
Now showing items 1-17 of 17
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Conference Object
Capacity for MIMO systems at low SNR
Ioannou, I.; Charalambous, Charalambos D.; Denic, S. (2010)The paper introduces an asymptotic series expansion for the mutual information of Multiple-Input Multiple-Output (MIMO) channels. For low signal to noise ratio (SNR) the first term of expansion approaches mutual information ...
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Article
Carbon sequestration via enhanced weathering of peridotites and basalts in seawater
Rigopoulos, I.; Harrison, A. L.; Delimitis, A.; Ioannou, I.; Efstathiou, A. M.; Kyratsi, Theodora; Oelkers, E. H. (2018)Enhanced weathering of mafic and ultramafic rocks has been suggested as a carbon sequestration strategy for the mitigation of climate change. This study was designed to assess the potential drawdown of CO2 directly from ...
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Article
Determination of the rheological parameters of self-compacting concrete matrix using slump flow test
Neophytou, Marina K. A.; Pourgouri, S.; Kanellopoulos, A. D.; Petrou, Michael F.; Ioannou, I.; Georgiou, G.; Alexandrou, Andreas N. (2010)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 ...
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Article
Effect of ball milling on the carbon sequestration efficiency of serpentinized peridotites
Rigopoulos, I.; Delimitis, A.; Ioannou, I.; Efstathiou, A. M.; Kyratsi, Theodora (2018)Mineral carbonation has been suggested as a safe carbon capture and storage (CCS) strategy for the mitigation of climate change. This study investigates the effect of ball milling on the CO2 sequestration capacity of ...
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Article
Enhancing the rate of ex situ mineral carbonation in dunites via ball milling
Rigopoulos, I.; Vasiliades, M. A.; Ioannou, I.; Efstathiou, A. M.; Godelitsas, A.; Kyratsi, Theodora (2016)The investigation of potential options for CO2 sequestration is of vital importance for alleviating the ongoing climate problem. This paper presents an efficient method for enhancing the ex situ carbonation of dunites. The ...
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Conference Object
Ergodic capacity under channel distribution uncertainty
Loyka, S.; Charalambous, Charalambos D.; Ioannou, I. (Institute of Electrical and Electronics Engineers Inc., 2014)The impact of channel distribution uncertainty on the performance of fading channels is studied. The compound capacity of a class of ergodic fading channels subject to channel distribution uncertainty is obtained, for ...
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Book
The Medieval Mansion in Potamia. A case study in the Framework of the Multidisciplinary Postgraduate Course on Conservation
Philokyprou, Maria; Ioannou, I.; Papasavvas, G.; Myrianthevs, D.; Illambas, R.; Lyssandrou, V.; Nicolaou, D.
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Article
A method to enhance the CO2 storage capacity of pyroxenitic rocks
Rigopoulos, I.; Vasiliades, M. A.; Petallidou, Klito C.; Ioannou, I.; Efstathiou, A. M.; Kyratsi, Theodora (2015)Investigation of new efficient pathways for CO2 sequestration is of great significance for the mitigation of climate change. Ultramafic rocks are considered among the most promising lithotypes for the safe storage of CO2 ...
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Conference Object
Minimizing outage probability for a class of MIMO channels
Charalambous, Charalambos D.; Ioannou, I. (2009)In this paper we investigate the outage probability of Multiple-Input Multiple-Output (MIMO) channels, when the probability distribution of the channel gains is not completely known to the transmitter and receiver. The ...
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Article
Mutual information expansion for MIMO systems and capacity formulae at low SNR
Ioannou, I.; Charalambous, Charalambos D.; Denic, S. (2011)The paper introduces a new asymptotic series expansion for the mutual information of multiple-input multiple-output (MIMO) channels. The expansion approaches mutual information from below, and for low signal to noise ratio ...
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Article
On the potential use of quarry waste material for CO2 sequestration
Rigopoulos, I.; Petallidou, Klito C.; Vasiliades, M. A.; Delimitis, A.; Ioannou, I.; Efstathiou, A. M.; Kyratsi, Theodora (2016)The use of solid wastes rich in Ca2+, Mg2+ and Fe2+ for the ex situ sequestration of CO2 could provide an economically and technologically viable option for the reduction of anthropogenic CO2 emissions. Here, we investigate ...
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Conference Object
Outage capacity and probability for a class of MIMO channels
Ioannou, I.; Charalambous, Charalambos D. (2010)This paper is concerned with outage capacity and probability of Multiple-Input Multiple-Output (MIMO) systems for a class of channel distributions. The results illustrate how outage probability and capacity degrade as a ...
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Article
Outage probability under channel distribution uncertainty
Ioannou, I.; Charalambous, Charalambos D.; Loyka, S. (2012)Outage probability and capacity of a class of block-fading MIMO channels are considered under partial channel distribution information. Specifically, the channel or its distribution is not known but the latter is known to ...
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Conference Object
Outage probability under channel distribution uncertainty
Ioannou, I.; Charalambous, Charalambos D.; Loyka, S. (2011)Outage probability of a class of block-fading (MIMO) channels is considered under channel distribution uncertainty, when the channel or its distribution are not known but the latter is known to belong to a class of ...
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Conference Object
The Role of the Thermal Mass of Adobe Walls in the Thermal Performance of Vernacular Dwellings
Michael, Aimilios; Philokyprou, Maria; Thravalou, S.; Ioannou, I. (World Congress Terra 2016, 2018)
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Conference Object
Teaching computer science in secondary education: A technological pedagogical content knowledge perspective
Ioannou, I.; Angeli, Charoula (2013)
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Book Chapter
Technological pedagogical content knowledge as a framework for integrating educational technology in the teaching of computer science
Ioannou, I.; Angeli, Charoula (2015)