Rock burst precursor electromagnetic radiation signal recognition method and early warning application based on recurrent neural networks

Y Di, E Wang - Rock Mechanics and Rock Engineering, 2021 - Springer
The fracture-induced electromagnetic radiation (FEMR) method is a promising geophysical
method for the monitoring and early warning of coal-rock burst disasters. At present, the time …

[图书][B] Natural Time Analysis: The New View of Time, Part II: Advances in Disaster Prediction Using Complex Systems

P Varotsos, N Sarlis, E Skordas - 2023 - books.google.com
This monograph contains the advances achieved based on the content of our previous
monograph published in 2011. In other words, the present monograph can be considered …

Critical dynamics in stratospheric potential energy variations prior to significant (M> 6.7) earthquakes

DZ Politis, SM Potirakis, S Kundu, S Chowdhury… - Symmetry, 2022 - mdpi.com
Lithosphere–atmosphere–ionosphere coupling (LAIC) is studied through various physical or
chemical quantities, obtained from different sources, which are observables of the involved …

Improving the Estimation of the Occurrence Time of an Impending Major Earthquake Using the Entropy Change of Seismicity in Natural Time Analysis

PA Varotsos, NV Sarlis, ES Skordas, T Nagao… - Geosciences, 2023 - mdpi.com
This article is focused on a new procedure concerning a more accurate identification of the
occurrence time of an impending major earthquake (EQ). Specifically, we first recapitulate …

Criticality hidden in acoustic emissions and in changing electrical resistance during fracture of rocks and cement-based materials

G Niccolini, SM Potirakis, G Lacidogna, O Borla - Materials, 2020 - mdpi.com
Acoustic emissions (AE) due to microcracking in solid materials permit the monitoring of
fracture processes and the study of failure dynamics. As an alternative method of integrity …

Correlations between earthquake properties and characteristics of possible ULF geomagnetic precursor over multiple earthquakes

KA Yusof, M Abdullah, NSA Hamid, S Ahadi… - Universe, 2021 - mdpi.com
In this study, we improved and adapted existing signal processing methods on vast
geomagnetic field data to investigate the correlations between various earthquake …

Natural time analysis of Global Navigation Satellite System surface deformation: The case of the 2016 Kumamoto earthquakes

SS Yang, SM Potirakis, S Sasmal, M Hayakawa - Entropy, 2020 - mdpi.com
In order to have further evidence of the atmospheric oscillation channel of the lithosphere-
atmosphere-ionosphere coupling (LAIC), we have studied criticality in global navigation …

Statistical and criticality analysis of the lower ionosphere prior to the 30 October 2020 Samos (Greece) earthquake (M6. 9), based on VLF electromagnetic propagation …

DZ Politis, SM Potirakis, YF Contoyiannis, S Biswas… - Entropy, 2021 - mdpi.com
In this work we present the statistical and criticality analysis of the very low frequency (VLF)
sub-ionospheric propagation data recorded by a VLF/LF radio receiver which has recently …

Fracture analysis of typical construction materials in natural time

A Loukidis, ED Pasiou, NV Sarlis, D Triantis - Physica A: Statistical …, 2020 - Elsevier
The acoustic emissions observed before the failure of typical construction materials like
marble and cement mortar are analysed in natural time. The study of the variance κ 1 of …

Statistical global investigation of pre-earthquake anomalous geomagnetic diurnal variation using superposed epoch analysis

KA Yusof, M Abdullah, NSA Hamid… - … on Geoscience and …, 2021 - ieeexplore.ieee.org
Recent studies reported that the diurnal variation of the geomagnetic field exhibited
anomalous characteristics several months before earthquakes (EQs). However, the …