Search Results - "Xenos, T."

A qualitative study of the seismo-ionospheric precursors prior to the 6 April 2009 earthquake in L'Aquila, Italy by Tsolis, G S, Xenos, T D

“…In this paper we use the Cross Correlation analysis method in conjunction with the Empirical Mode Decomposition to analyze foF2 signals collected from Rome,…”
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A qualitative study of seismic-ionospheric precursor phenomena monitored by a very close to the epicenter VLF and LF receiver by Skeberis, C., Zaharis, Z.D., Xenos, T.D., Spatalas, S., Contadakis, M.E.

“…•We monitor 5 VLF and 5 LF stations in a receiver in Thessaloniki (INFREP).•An earthquake (Mw=4), took place on 05/12/2012, occured 14km from the receiver.•The…”
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Time–frequency analysis of VLF for seismic-ionospheric precursor detection: Evaluation of Zhao-Atlas-Marks and Hilbert-Huang Transforms by Skeberis, C., Zaharis, Z.D., Xenos, T.D., Spatalas, S., Arabelos, D.N., Contadakis, M.E.

“…•VLF and LF stations have been monitored in a receiver in Thessaloniki, Greece (INFREP).•Study of comparison between 2 methods of processing the…”
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Seismo-ionospheric coupling correlation analysis of earthquakes in Greece, using empirical mode decomposition by Tsolis, G S, Xenos, T D

“…Ionospheric variability as a result of earthquake events is a confirmed phenomenon as published in various seismo-ionospheric coupling studies. Generally,…”
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On the uncertainty estimation of electromagnetic field measurements using field sensors: a general approach by Stratakis, D., Miaoudakis, A., Katsidis, C., Zacharopoulos, V., Xenos, T.

“…One of the most common and popular practices on measuring the non-ionising electric and/or magnetic field strength employs field meters and the appropriate…”
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Neural-network-based prediction techniques for single station modeling and regional mapping of the foF2 and M(3000)F2 ionospheric characteristics by Xenos, T. D.

“…In this work, Neural-Network-based single-station hourly daily foF2 and M(3000)F2 modelling of 15 European ionospheric stations is investigated. The data used…”
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Electromagnetic exposure compliance estimation using narrowband directional measurements by Stratakis, D., Miaoudakis, A., Xenos, T., Zacharopoulos, V.

“…The increased number of everyday applications that rely on wireless communication has drawn an attention to several concerns on the adverse health effects that…”
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A comparative study of the biological effects of various mobile phone and wireless LAN antennas by Yioultsis, T.V., Kosmanis, T.I., Kosmidou, E.P., Zygiridis, T.T., Kantartzis, N.V., Xenos, T.D., Tsiboukis, T.D.

“…This paper presents a comprehensive electromagnetic and thermal analysis of radiation and its impact on human beings, due to the use of various types of…”
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A semi-automated approach towards generating three-dimensional mesh of the heart using a hybrid MRI/histology database by Theofilogiannakos, E.K., Theofilogiannakos, G.K., Danias, P.G., Yioultsis, T.V., Anogeianaki, A., Stergiou-Michailidou, V., Kallaras, K., Xenos, T., Anogianakis, G.

“…Both the forward and inverse problems of electrocardiography rely on the precise modelling of the anatomic and electrical properties of the thoracic tissues…”
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An artificial neural network predictor for tropospheric surface duct phenomena by Isaakidis, S. A., Dimou, I. N., Xenos, T. D., Dris, N. A.

“…In this work, an artificial neural network (ANN) model is developed and used to predict the presence of ducting phenomena for a specific time, taking into…”
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FDTD method with oblique incidence for ionospheric wave propagation problems - application to an HF one-hop radio-link study by Xenos, T.D., Yioultsis, T.V.

“…This paper introduces a new finite-difference time-domain (FDTD) approach for electrically very large wave-propagation problems and especially for…”
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Application of empirical mode decomposition to very low frequency signals for identification of seismic-ionospheric precursor phenomena by Christos Skeberis, Dimitrios T., Thomas D., Michael E., Dimitrios Arabelos, Georgia Chatzopoulou

“…This study investigates the application of empirical mode decomposition to signals from very low frequency transmitters in Europe that were received in…”
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Ablation of residual potentials along the circumferential line reduces acute reconnection in patients undergoing pulmonary vein isolation by Tzeis, S, Kojic, D, Manola, S, Brusich, S, Pernat, A, Asvestas, D, Xenos, T, Tomovic, M, Cubranic, Z, Rauber, M, Pavlovic, N

“…Abstract Introduction Acute pulmonary vein (PV) reconnection is frequently encountered in patients with atrial fibrillation (AF) subjected to PV isolation…”
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On the day-to-day variation of foF2 and M(3000)F2 by Kouris, S.S., Fotiadis, D.N., Xenos, T.D.

“…Studying the relative deviations of the hourly daily values of the critical frequency foF2 from their corresponding monthly median we are lead to define as…”
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Design of a Novel Antenna Array Beamformer Using Neural Networks Trained by Modified Adaptive Dispersion Invasive Weed Optimization Based Data by Zaharis, Z. D., Skeberis, C., Xenos, T. D., Lazaridis, P. I., Cosmas, J.

“…A new antenna array beamformer based on neural networks (NNs) is presented. The NN training is performed by using optimized data sets extracted by a novel…”
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RF radiation-induced changes in the prenatal development of mice by Magras, Ioannis N., Xenos, Thomas D.

“…The possible effects of radiofrequency (RF) radiation on prenatal development has been investigated in mice. This study consisted of RF level measurements and…”
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Optimization of log-periodic dipole antenna with LTE band-rejection by Mistry, KK, Lazaridis, PI, Zaharis, ZD, Xenos, TD, Glover, IA

“…This study presents an optimized design of a 10-dipole log-periodic antenna for UHF TV reception with LTE band rejection. The simulation of the antenna was…”
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Ionospheric radio wave propagation finite element method modeling by Isaakidis, S. A., Xenos, T. D., Koukos, J. A.

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A Hybrid Parabolic EquationaIntegral Equation Technique for Wave Propagation Modeling of Indoor Communications by Theofilogiannakos, G K, Xenos, T D, Yioultsis, T V

“…We present a 3D hybrid technique for the simulation of wave propagation in complex indoor communication environments. The hybrid method employs a wide-angle…”
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Ten years analysis of Tropospheric refractivity variations by S. A. Isaakidis, T. D. Xenos

“…The refractivity variations of the troposphere are responsible for various effects on radio wave propagation, such as refraction, bending, radio-station…”
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