Search Results - "Eftaxias, K"

Footprints of nonextensive Tsallis statistics, selfaffinity and universality in the preparation of the L’Aquila earthquake hidden in a pre-seismic EM emission by Eftaxias, K.

“…Fracture induced physical fields allow a real-time monitoring of damage evolution in materials during mechanical loading. We investigate the preparation of the…”
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Evidence of critical dynamics in various electromagnetic precursors by Potirakis, S. M., Contoyiannis, Y., Schekotov, A., Eftaxias, K., Hayakawa, M.

“…A wide variety of electromagnetic phenomena possibly related with earthquake (EQ) preparation processes have been reported in the literature during the last…”
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Current challenges for pre-earthquake electromagnetic emissions: shedding light from micro-scale plastic flow, granular packings, phase transitions and self-affinity notion of fracture process by Eftaxias, K, Potirakis, S M

“…Are there credible electromagnetic (EM) potential earthquake (EQ) precursors? This a question debated in the scientific community and there may be legitimate…”
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Analysis of electromagnetic pre-seismic emissions using Fisher information and Tsallis entropy by Potirakis, S.M., Minadakis, G., Eftaxias, K.

“…In this work, we investigate the dynamics of electromagnetic precursors, recorded prior to significant earthquakes in Greece. The analysis of these signals is…”
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Tricritical crossover in earthquake preparation by analyzing preseismic electromagnetic emissions by Contoyiannis, Y., Potirakis, S.M., Eftaxias, K., Contoyianni, L.

“…Fracture-induced electromagnetic emissions (EME) have been observed from the laboratory to the geophysical scale permitting the monitoring of damage evolution…”
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On the puzzling feature of the silence of precursory electromagnetic emissions by Eftaxias, K, Potirakis, S. M, Chelidze, T

“…It has been suggested that fracture-induced MHz–kHz electromagnetic emissions (EME), which emerge from a few days up to a few hours before the main seismic…”
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The Earth as a living planet: human-type diseases in the earthquake preparation process by Contoyiannis, Y. F, Potirakis, S. M, Eftaxias, K

“…The new field of complex systems supports the view that a number of systems arising from disciplines as diverse as physics, biology, engineering, and economics…”
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Relation between seismicity and pre-earthquake electromagnetic emissions in terms of energy, information and entropy content by Potirakis, S. M, Minadakis, G, Eftaxias, K

“…In this paper we show, in terms of Fisher information and approximate entropy, that the two strong impulsive kHz electromagnetic (EM) bursts recorded prior to…”
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From pre-storm activity to magnetic storms : a transition described in terms of fractal dynamics by BALASIS, G, DAGLIS, I. A, KAPIRISL, P, MANDEA, M, VASSILIADIS, D, EFTAXIAS, K

“…We show that distinct changes in scaling parameters of the Dst index time series occur as an intense magnetic storm approaches, revealing a gradual reduction…”
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Electromagnetic signature of prefracture criticality in heterogeneous media by Kapiris, P G, Eftaxias, K A, Chelidze, T L

“…Fractal statistical analysis under the critical point (CP) hypothesis is applied to electromagnetic (EM) signals emitted before failure. A new approach to the…”
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The role of propagating stress waves on a geophysical scale: Evidence in terms of nonextensivity by Minadakis, G., Potirakis, S.M., Stonham, J., Nomicos, C., Eftaxias, K.

“…Laboratory experiments have shown that, during a fracture, the breaking of a bond launches a propagating stress wave which may trigger the breaking of other…”
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A multidisciplinary analysis for traces of the last state of earthquake generation in preseismic electromagnetic emissions by Potirakis, S. M., Minadakis, G., Nomicos, C., Eftaxias, K.

“…Many questions about earthquake (EQ) generation remain standing. Fracture induced electromagnetic (EM) fields allow real-time monitoring of damage evolution in…”
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Unfolding the procedure of characterizing recorded ultra low frequency, kHZ and MHz electromagetic anomalies prior to the L'Aquila earthquake as pre-seismic ones – Part 1 by Eftaxias, K., Athanasopoulou, L., Balasis, G., Kalimeri, M., Nikolopoulos, S., Contoyiannis, Y., Kopanas, J., Antonopoulos, G., Nomicos, C.

“…Ultra low frequency, kHz and MHz electromagnetic (EM) anomalies were recorded prior to the L'Aquila catastrophic earthquake that occurred on 6 April 2009. The…”
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Sudden drop of fractal dimension of electromagnetic emissions recorded prior to significant earthquake by Potirakis, S. M., Minadakis, G., Eftaxias, K.

“…The variation of fractal dimension and entropy during a damage evolution process, especially approaching critical failure, has been recently investigated. A…”
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Tsallis and Levy statistics in the preparation of an earthquake by Contoyiannis, Y. F., Eftaxias, K.

“…Precursory fracture induced electromagnetic (EM) emissions, rooted in opening cracks and ranging from MHz to kHz, with the MHz appearing earlier, are produced…”
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Unfolding the procedure of characterizing recorded ultra low frequency, kHZ and MHz electromagnetic anomalies prior to the L'Aquila earthquake as pre-seismic ones - Part 2 by Eftaxias, K., Balasis, G., Contoyiannis, Y., Papadimitriou, C., Kalimeri, M., Athanasopoulou, L., Nikolopoulos, S., Kopanas, J., Antonopoulos, G., Nomicos, C.

“…Ultra low frequency-ULF (1 Hz or lower), kHz and MHz electromagnetic (EM) anomalies were recorded prior to the L'Aquila catastrophic earthquake (EQ) that…”
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Critical features in electromagnetic anomalies detected prior to the L’Aquila earthquake by Contoyiannis, Y.F., Nomicos, C., Kopanas, J., Antonopoulos, G., Contoyianni, L., Eftaxias, K.

“…Earthquakes (EQs) are large-scale fracture phenomena in the Earth’s heterogeneous crust. Fracture-induced physical fields allow a real-time monitoring of…”
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Evolution-EM signals before earthquakes in terms of mesomechanics and complexity by Eftaxias, K., Panin, V.E., Deryugin, Ye.Ye

“…MHz-to-kHz electromagnetic (EM) anomalies have been detected worldwide over time intervals ranging from a few days to a few hours prior to near-surface…”
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A study of non-extensivity in the Earth’s magnetosphere by Balasis, G., Eftaxias, K.

“…Magnetic storms are undoubtedly among the most important phenomena in space physics and also a central subject of space weather. The non-extensive Tsallis…”
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Fractal spectral analysis of pre-epileptic seizures in terms of criticality by Li, Xiaoli, Polygiannakis, J, Kapiris, P, Peratzakis, A, Eftaxias, K, Yao, X

“…The analysis of pre-epileptic seizure through EEG (electroencephalography) is an important issue for epilepsy diagnosis. Currently, there exist some methods…”
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