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相关论文: Current challenges for preseismic electromagnetic …

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It has been suggested that fracture-induced MHz-kHz electromagnetic (EM) emissions, which emerge from a few days up to a few hours before the main seismic shock occurrence permit a real-time monitoring of the damage process during the last…

地球物理 · 物理学 2014-01-30 K. Eftaxias , S. M. Potirakis , T. Chelidze

EM emissions in a wide frequency spectrum ranging from kHz to MHz are produced by opening cracks, which can be considered as precursors of general fracture. An important feature, observed on both laboratory and geophysical scale, is that…

地球物理 · 物理学 2014-01-30 G. Minadakis , S. M. Potirakis , C. Nomicos , K. Eftaxias

Electromagnetic (EM) emissions in a wide frequency spectrum ranging from kHz to MHz are produced by opening cracks, which can be considered as the so-called precursors of general fracture. We emphasize that the MHz radiation appears earlier…

地球物理 · 物理学 2015-05-13 Y. F. Contoyiannis , C. Nomicos , J. Kopanas , G. Antonopoulos , L. Contoyianni , K. Eftaxias

Of particular interest is the detection of precursors of an impending rupture. Theoretical, numerical studies along with laboratory experiments indicate that precursory signs of an impending failure are the sudden drop of fractal dimension…

地球物理 · 物理学 2012-11-22 S. M. Potirakis , K. Eftaxias , J. Kopanas , G. Antonopoulos

It has recently been found that the evolution of the preparation of a strong earthquake (EQ), as it is monitored through fracture-induced electromagnetic emissions (EME) in the MHz band, presents striking similarity with the evolution of a…

In this letter we present preliminary results concerning precursors to the recent significant (Mw 6.7) earthquake (EQ) that took place in the region south of the Greek Island of Zakynthos (October 25, 2018). We show, in terms of…

The variation of fractal dimension and entropy during a damage evolution process, especially approaching critical failure, has been recently investigated. A sudden drop of fractal dimension has been proposed as a quantitative indicator of…

地球物理 · 物理学 2013-08-15 S. M. Potirakis , G. Minadakis , K. Eftaxias

Electromagnetic (EM) composites have stimulated tremendous fundamental and practical interests owing to their flexible electromagnetic properties and extensive potential engineering applications. Hence, it is necessary to systematically…

光学 · 物理学 2022-09-21 Faxiang Qin , Mengyue Peng , Diana Estevez , Christian Brosseau

Quantum materials are driving a technology revolution in sensing, communication, and computing, while simultaneously testing many core theories of the past century. Materials such as topological insulators, complex oxides, quantum dots,…

The acoustic emission of fracture precursors is measured in heterogeneous materials. The statistical behaviour of these precursors is studied as a function of the load features and the geometry. We find that the time interval between events…

凝聚态物理 · 物理学 2019-08-17 A. Guarino , R. Scorretti , S. Ciliberto , A. Garcimartin

In this short paper we report that the dynamics of the earthquake (EQ) preparation processes, as embedded in the observed fracture-induced electromagnetic emissions (EME), were characterized by critical and then tricritical behavior a few…

地球物理 · 物理学 2025-03-28 Y. Contoyiannis , S. M. Potirakis , J. Kopanas , G. Antonopoulos , K. Eftaxias , C. Nomicos

The normalized raw data of the Earth's electric field, monitored at PYR, ATH, HIO monitoring sites in Greece, are studied as far as it concerns the presence of electric seismic precursors. Electric preseismic pulses, plateau-like anomalous…

地球物理 · 物理学 2009-08-31 C. Thanassoulas , V. Klentos , G. Verveniotis , N. Zymaris

The Standard Model (SM) is the best description of fundamental particles and their interactions we have to date. From this theory, all phenomena in the macroscopic world (except for gravity) can be explained, and it has successfully…

高能物理 - 唯象学 · 物理学 2024-07-30 Joan Ruiz-Vidal

Electric dipole moment (EDM) experiments are at the fore-front of search for physics beyond the standard model. The next generation searches promise to improve by several orders of magnitude the current EDM sensitivity levels.

高能物理 - 实验 · 物理学 2009-10-16 Yannis K. Semertzidis

The electronic interconnections in the state-of-the-art integrated circuit manufacturing have been scaled down to the micron or sub-micron scale. This results in a dramatic increase in the current density passing through interconnections,…

材料科学 · 物理学 2019-08-06 Yu-chen Liu , Shih-kang Lin

The starting point of the present review is to acknowledge that there are innumerable reports of non-seismic types of earthquake precursory phenomena that are intermittent and seem not to occur systematically, while associated reports are…

地球物理 · 物理学 2017-11-07 Friedemann Freund , Guy Ouillon , John Scoville , Didier Sornette

The Earth's electric field, recorded by two different and distant monitoring sites located in Greece, is analyzed in terms of monochromatic signals (T=24h). The analysis is based on the mapping procedures borrowed from the study of…

地球物理 · 物理学 2008-10-02 C. Thanassoulas , V. Klentos , G. Verveniotis

In this work a review is made of the various preseismic electric signals that have been observed before large EQs in Greece during the period of 1999 to 2012. The observed preseismic electric signals comply quite well with the theoretical…

地球物理 · 物理学 2012-09-05 C. Thanassoulas , V. Klentos , G. Verveniotis , N. Zymaris

A permanent electric dipole moment (EDM) of a particle or system is a separation of charge along its angular-momentum axis and is a direct signal of T-violation and, assuming CPT symmetry, CP violation. For over sixty years EDMs have been…

原子物理 · 物理学 2019-02-08 Timothy Chupp , Peter Fierlinger , Michael Ramsey-Musolf , Jaideep Singh

This is a theoretical review of exploration of new physics beyond the Standard Model (SM) in electric dipole moment (EDM) in elementary particles, atoms, and molecule. EDM is a very important CP violating phenomenon and sensitive to new…

高能物理 - 唯象学 · 物理学 2015-06-03 Takeshi Fukuyama
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