Πλοήγηση Επιστημονικές Δημοσιεύσεις ανά Τίτλο

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Πλοήγηση Επιστημονικές Δημοσιεύσεις ανά Τίτλο

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  • A five-level symmetrically defined selective harmonic elimination PWM strategy: analysis and experimental validation 
    Agelidis, V. G.; Balouktsis, A. I.; Dahidah, Mohamed S. A. (2008-01)
    A five-level symmetrically defined multilevel selective harmonic elimination pulsewidth modulation (MSHE-PWM) strategy is reported in this paper. It is mathematically expressed using Fourier-based equations on a line-to-neutral ...
  • Flash Flood Hazard Prevention using Morphometric and Hydraulic models. An example implementation. 
    Papatheodorou, Konstantinos A.; Tzanou, Eleni A.; Ntouros, Konstantinos D. (2014)
    Flash floods are the prominent type of flood hazard among the Black Sea and the Mediterranean countries. They occur within a few minutes or hours of excessive rainfall, a dam or levee failure, or a sudden release of water ...
  • Flood hazard assessment based on geomorphological analysis with GIS tools - the case of Laconia (Peloponnesus, Greece) 
    Karagiozi, Eleni; Fountoulis, Ioannis; Konstantinidis, Alexandros; Andreadakis, Emmanouil; Ntouros, Konstantinos (2011-01)
    The aim of the study was the development of a GIS tool, to be exploited eventually in the form of a WebGIS, as a decision support tool for flood hazard (and risk) assessment. The research was conducted in Laconia Prefecture ...
  • Flow, thermal and structural application of Ni-foam as volumetric solar receiver 
    Michailidis, N.; Stergioudi, F.; Omara, H.; Missirlis, D.; Vlahostergios, Z.; Tsipas, S.; Albanakis, C.; Granier, B. (2013-02)
    Open-cell nickel foams with 92% porosity and uniform pore size and distribution were used in this study. The main objective of this work was to evaluate the behaviour of Ni-foam, when treated as volumetric receivers under ...
  • A Framework for Supporting Creative Thinking in Concept Mapping 
    Giouvanakis, Thanasis; Kehris, Evangelos; Samara, Haido; Mpakavos, Stergios (2014)
    In this paper, we present a framework associated with the development of analytic and synthetic thinking that is also related to improving learner creativity. In this framework, the whole concept map is treated as a ...
  • A Framework for the Evaluation of Hotel Websites: The Case of Greece 
    Zafiropoulos, Costas; Vrana, Vasiliki (2006)
    It is essential for hotel companies to evaluate and improve website performance in order to keep and increase their online presence and competitiveness in the marketplace. This article proposes an evaluation framework for ...
  • From Repositories of Best Practices to Networks of Best Practices 
    Fragidis, G.; Tarabanis, K. (2006)
    The paper refers to the development of online "networks of best practices" as mechanisms for the sharing of practical knowledge and the support of collaboration among business enterprises. The traditional approach in the ...
  • Functional Testing Techniques for Discrete-Event Simulation 
    Kehris, E. (2006)
    Simulation program testing is an important phase of a simulation study which aims to uncover errors in the simulation program. This paper presents the adoption of two complementary functional techniques for the testing ...
  • A generalized Takagi–Sugeno–Kang recurrent fuzzy-neural filter for adaptive noise cancelation 
    Mastorocostas, Paris; Varsamis, Dimitris; Hilas, Constantinos; Mastorocostas, Constantinos (2008-10)
    This paper presents a recurrent fuzzy-neural filter for adaptive noise cancelation. The cancelation task is transformed to a system-identification problem, which is tackled by use of the dynamic neuron-based fuzzy neural ...
  • A genetic programming approach to telecommunications fraud detection and classification 
    Hilas, Constantinos S.; Kazarlis, Spyridon A.; Rekanos, Ioannis T.; Mastorocostas, Paris A. (2014-03)
    Telecommunications fraud has drawn the researchers’ attention due to the huge economic burden on companies and to the interesting aspect of users’ behavior modeling. In the present paper, an application of genetic ...
  • Geoclouds for Environmental Management 
    Evangelidis, K.; Ntouros, K.; Papatheodorou, K.; Konstantinidis, A.; Perakis, K. (2014)
    t. Environmental monitoring and management are multidisciplinary tasks which require a continuous and close cooperation among involved stakeholders from various public entities, based in different locations. This fact ...
  • Geospatial predictive modelling of the Neolithic archaeological sites of Magnesia in Greece 
    Perakis, Konstantinos; Moysiadis, Athanasios (2011-09)
    Sources of heterogeneous geospatial data such as the elevation, the slope, the aspect, the water network and the current settlements related to the known Neolithic archaeological sites of Magnesia, are used in an attempt ...
  • Geospatial services in the Cloud 
    Evangelidis, Konstantinos; Ntouros, Konstantinos; Makridis, Stathis; Papatheodorou, Constantine (2014-02)
    Data semantics play an extremely significant role in spatial data infrastructures by providing semantic specifications to geospatial data and enabling in this way data sharing and interoperability. By applying, on the fly, ...
  • Geotechnical Earthquake hazard assessment based on a GIS platform 
    Papatheodorou, C.; Klimis, N.; Moutsokapas, Pr.; Koutrakis, S.; Margaris, B. (2007)
    The present work explores the ability of a GIS platform based tool to estimate potential losses of geotechnical earthquake hazard. Phenomena, such as liquefaction, dynamic settlements, lateral spreading, landslides and ...
  • A GIS web-based traffic accident information system 
    Evangelidis, K.; Basbas, S.; Papaioannou, P. (2006)
    Humanity has faced an enormous technological evolution over the last 15 years in the area of Networks and Communications, in parallel with the continuous progress occurring in the computer hardware and software ...
  • GIS-based Visualisation of Traffic Noise 
    Konstantinidis, A.; Evangelidis, K.; Stefanidou, E. (2005)
    Among the environmental problems emerged in the majority of modern cities, noise pollution along with air pollution is considered to be the most important ones. Traffic noise is a priority issue in the EU. According to a ...
  • Government spending and revenues in the Greek economy: evidence from nonlinear cointegration 
    Athanasenas, Athanasios; Katrakilidis, Constantinos; Trachanas, Emmanouil (2014-05)
    This paper attempts to re-evaluate the long-run macroeconomic relationship between government revenues and expenditures of the Greek economy over the period 1999–2010. The empirical analysis applies the newly developed ...
  • Gravitomagnetic instabilities in anisotropically expanding fluids 
    Kleidis, Kostas; Kuiroukidis, Apostolos; Papadopoulos, Demetrios B.; Vlahos, Loukas (2008)
    Gravitational instabilities in a magnetized Friedman–Robertson–Walker (FRW) universe, in which the magnetic field was assumed to be too weak to destroy the isotropy of the model, are known and have been studied in the past. ...
  • Graviton production in the scaling of a long-cosmic-string network 
    Kleidis, Kostas; Kuiroukidis, Apostolos; Papadopoulos, Demetrios B.; Verdaguer, Enric (2011-09-15)
    In a previous paper [K. Kleidis, D. B. Papadopoulos, E. Verdaguer, and L. Vlahos, Phys. Rev. D 78, 024027 (2008).] we considered the possibility that (within the early-radiation epoch) there has been (also) a short period ...
  • Greek banks in the Balkan countries: conclusion derived from analysis of their balance sheets 
    Chouliaras, Vasilios; Bogas, Christos G. (2011)
    During the 1990s the Greek economy has flourished, with the help of the banking system, which, at the same period, has undergone considerable deregulation. The stock market “explosion” at the end of the decade has provided ...