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Politeness on Facebook: The case of Greek birthday wishes
(
John Benjamins Publishing
, 2015 , Article)
Facebook forms one of the most widely used online social networks, through which people manage their communication with diverse contacts or 'friends', ranging from members of the family and schoolmates to work colleagues ...
Synthesis of minimal-size ZnO nanoparticles through sol-gel method: Taguchi design optimisation
(
Elsevier BV
, 2015 , Article)
Zinc oxide (ZnO) has excellent potential to be used in water and wastewater treatment, either as a photocatalyst or in membrane incorporation. In this work, the synthesis of smaller ZnO NPs through a sol-gel approach was ...
A new experimental device and inverse method to characterize thermal properties of composite phase change materials
(
Elsevier BV
, 2015 , Article)
A new experimental device has been developed in order to characterize the phase change material (PCM) thermal properties (thermal conductivity k, sensible and latent heat thermal energy storage, cp and Lf) in the solid ...
An interdisciplinary specialist team leads to improved diagnostics and treatment for paediatric patients with vascular anomalies
(
John Wiley & Sons Ltd.
, 2015 , Article)
Aim Patients with vascular anomalies are often misdiagnosed, leading to delayed or improper treatment. The aim of this study was to evaluate the impact of an interdisciplinary team on the diagnosis and treatment of ...
Modelling the degradation of vibration characteristics of reinforced concrete beams due to flexural damage
(
John Wiley & Sons, Ltd.
, 2015 , Article)
This paper presents an improved crack model incorporating non-linearity of flexural damage in concrete to reproduce changes in vibration properties of cracked reinforced concrete beams. A reinforced concrete beam model ...
Maximizing Energy Efficiency in Multiple Access Channels by Exploiting Packet Dropping and Transmitter Buffering
(
IEEE
, 2015 , Article)
Quality of service (QoS) for a network is characterized in terms of various parameters specifying packet delay and loss tolerance requirements for the application. The unpredictable nature of the wireless channel demands ...
Implementation and Analysis of Reward Functions under Different Traffic Models for Distributed DSA Systems
(
IEEE
, 2015 , Article)
In this paper, we implement and analyze a resource allocation protocol for distributed dynamic spectrum allocation (DSA) systems. The DSA protocol is a learning-based protocol that allows secondary users (SU) to exploit ...
Beamforming OFDM Performance under Joint Phase Noise and I/Q Imbalance
(
IEEE
, 2015 , Article)
Phase noise (PHN) and in-phase/quadrature (I/Q) imbalance are two major RF impairments in direct-conversion wireless transceivers. Beamforming and orthogonal frequency division multiplexing (OFDM) schemes have been adopted ...
Poreless Separator and Electrolyte Additive for Lithium-Sulfur Batteries with High Areal Energy Densities
(
WILEY-VCH Verlag
, 2015 , Article)
Despite the attractive theoretical capacity of sulfur over 1600 mA h g−1, lithium–sulfur (Li–S) batteries suffer from insufficient cycle lives mainly due to fatal polysulfide dissolution. This chronic drawback becomes ...
Thermochemical treatment of fly ash for synthesis of mesoporous activated carbon
(
Springer Netherlands
, 2015 , Article)
A mesoporous activated carbon is produced from oil fly ash (OFA) using chemical and thermal treatments at different activation conditions. The ash samples were refluxed with a range of compositions of sulfuric, nitric, and ...