Zobrazeno 1 - 10
of 106
pro vyhledávání: '"V. Hadjicontis"'
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 11, Iss 6, Pp 1605-1608 (2011)
In this paper, we performed experiments of uniaxial compression of granite samples and recorded time series of electromagnetic pulses during the evolution of the catastrophic fracturing process. The cumulative energy release of the electromagnetic em
Externí odkaz:
https://doaj.org/article/c6c75c7040cc42578dbdda863263aa98
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 8, Iss 1, Pp 123-128 (2008)
The purpose of this study is to investigate some properties of the Seismic Electric Signals (SES) that preceded large earthquakes which occurred in the Aegean Sea (24–27)° E, (37–40)° N, during the last decade. Our main interest is focused on t
Externí odkaz:
https://doaj.org/article/c56edca7267643209ea1552174459e84
Autor:
V. Hadjicontis
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 4, Iss 5/6, Pp 633-639 (2004)
A crucial question of the scientific community nowadays, concerns the existence of electric signals preceding earthquakes. In order to give a plausible answer to this question, we carried out two kinds of laboratory experiments of uniaxial deformatio
Externí odkaz:
https://doaj.org/article/f41f35a4c6e74284b04b39e0590a38f6
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 8, Iss 4, Pp 651-651 (2008)
No abstract available.
Externí odkaz:
https://doaj.org/article/79c647ddeacb4cf6832de3e8ff62928b
Publikováno v:
International Journal of Solids and Structures. :118-125
Simultaneous acoustic (AE) and electromagnetic (EME) emissions during uniaxial compression of polycrystalline natural rocks which behave like brittle ‘isotropic’ piezoelectrics are studied experimentally. The plastic deformation of the brittle ro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80d11e385c1b471e9f506eb6ead1e1ca
https://doi.org/10.1016/j.ijsolstr.2014.11.027
https://doi.org/10.1016/j.ijsolstr.2014.11.027
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 1:162-165
The acoustic and electromagnetic emission detected during the uniaxial compression and before the catastrophic failure of dielectric crystalline materials is investigated in this letter. In particular, an appropriate experimental and measuring setup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ffbd54d5581c1c8f87ed1d36e113efa
https://doi.org/10.1109/lgrs.2004.828912
https://doi.org/10.1109/lgrs.2004.828912
Autor:
N. Bogris, P. Kapiris, A. Peratzakis, G. Antonopoulos, Konstantinos Eftaxias, J. Kopanas, J. Polygiannakis, V. Hadjicontis
Publikováno v:
Geophysical Research Letters. 28:3321-3324
Two electromagnetic (EM) anomalies have been detected in the VLF frequency band before the Athens earthquake (EQ) (Mw=5.9, Sept. 7, 1999) with the following characteristics: (i) The first and second anomaly lasted for 12 and 17 hours respectively wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::782488ad699e7c5f2cd602eaed127cc7
https://doi.org/10.1029/2001gl013124
https://doi.org/10.1029/2001gl013124
Autor:
Konstantinos Eftaxias, N. V. Sarlis, M. S. Lazaridou, Panayiotis A. Varotsos, V. Hadjicontis, N. Bogris
Publikováno v:
Physics and Chemistry of the Earth, Part A: Solid Earth and Geodesy. 24:111-114
A Special Issue (Geophys. Res. Lett. 23, 1996) was focused on the question whether the VAN predictions outperform random chance. The majority of the participants of this Debate was selected to be critics against VAN, but Varotsos and co-workers accep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8301327d9d14381c360711466b78d767
https://doi.org/10.1016/s1464-1895(99)00005-8
https://doi.org/10.1016/s1464-1895(99)00005-8
Publikováno v:
Materials Science Forum. :435-438
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c983606dc79da3dc2c41722a077f973
https://doi.org/10.4028/www.scientific.net/msf.239-241.435
https://doi.org/10.4028/www.scientific.net/msf.239-241.435
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 2:118-120
It is known that during uniaxial compression of dielectric crystalline materials, acoustic and electromagnetic (EM) emission is detected. Such emissions are of particular interest, since they are related to the physical processes taking place during
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61902875abb0933113943ddc30fdbfaf
https://doi.org/10.1109/lgrs.2004.842472
https://doi.org/10.1109/lgrs.2004.842472