Results 71 to 80 of about 1,026,033 (242)

Sudden drop of fractal dimension of electromagnetic emissions recorded prior to significant earthquake

, 2013
The variation of fractal dimension and entropy during a damage evolution process, especially approaching critical failure, has been recently investigated.
A Olemskoy, A Ponomarev, A Rabinovitch, A Voss, B Enescu, B-L Hao, BB Mandelbrot, BS Raghavendra, C Kontoes, C Lu, C Papadimitriou, CH Scholz, D Bahat, G. Minadakis, J Schmittbuhl, J Weeks, K Eftaxias, K Eftaxias, K Eftaxias, K Eftaxias, K Karamanos, K Karamanos, K Mogi, K. Eftaxias, L Telesca, L Telesca, M Gokhberg, M Kalimeri, P Kapiris, S Shoupeng, S Uyeda, S. M. Potirakis, T Higuchi, X Zhou, X-L Lei, Y Contoyiannis, Y Tsukakoshi, Y-M Wu, YH Li   +38 more
core   +1 more source

Linear elastic fracture mechanics predicts the propagation distance of frictional slip [PDF]

, 2014
When a frictional interface is subject to a localized shear load, it is often (experimentally) observed that local slip events initiate at the stress concentration and propagate over parts of the interface by arresting naturally before reaching the edge.
Ampuero, Jean-Paul, Kammer, David S., Molinari, Jean-François, Radiguet, Mathilde   +3 more
core   +2 more sources

Negative Anomalies of the Earth’s Electric Field as Earthquake Precursors

Géosciences, 2019
Anomalies of the electric field potential gradient have been observed in the near-ground air before earthquakes in different regions of the world. Such anomalies are likely caused by radon air ionization.
S. Smirnov
semanticscholar   +1 more source

Investigation of the failure characteristics of fissure tunnels under dynamic and static combinations

Deep Underground Science and Engineering, EarlyView.
This article aims to investigate the dynamic fracture response of fractured tunnel models under zero geological stress through physical experiments and numerical simulations. It further simulates the dynamic fracture characteristics of fractured tunnel models under geological stress ranging from 0 to 2.5 MPa using the numerical software AUTODYN ...
Peng Ying, Yu Ying, Xiaohan Li, Han Zhao, Kewei Yu, Zheming Zhu, Lei Zhou, Xibin Li   +7 more
wiley   +1 more source

Predictability of Self-Organizing Systems

, 1993
We study the predictability of large events in self-organizing systems. We focus on a set of models which have been studied as analogs of earthquake faults and fault systems, and apply methods based on techniques which are of current interest in ...
B. Gutenbrg, B. Shaw, C. Scholz, D. P. Schwartz, G. M. Mochan, J. Carlson, J. Carlson, J. Carlson, J. M. Carlson, J. Socolar, J.-B. Minster, K. Chen, K. Christensen, K. O'Brian, P. Bak, R. Burridge, R. E. Habermann, S. L. Pepke, V. Keilis-Borok, Y. Y. Kagan, Z. Olami   +20 more
core   +2 more sources

An optimizing microseismic method for rock burst early warning based on mining production process

Deep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han, Linming Dou, Wu Cai, Mingbo Chi, Guojun Xi, Shuai Chen, Biao Jiao   +6 more
wiley   +1 more source

Statistical Mechanics and Information-Theoretic Perspectives on Complexity in the Earth System [PDF]

, 2013
Peer reviewedPublisher ...
Balasis, Georgios, Daglis, Ioannis A., Donner, Reik V., Eftaxias, Konstantinos, Kurths, Juergen, Papadimitriou, Constantinos, Potirakis, Stelios M., Runge, Jakob   +7 more
core   +3 more sources

Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao, Xiaolong Wang, Xiao Chen, Dong Liu, Zhenhui Kang, Cheng Zhu   +5 more
wiley   +1 more source

Discussion on telluric field and seismic activity in Central Greece

Annals of Geophysics, 2000
Two stations were installed in the Southeastern Thessaly basin (Central Greece), recording the geomagnetic and telluric fields from 1993 to 1996. The aim was to detect long-term abnormal changes of the telluric field, which were possibly related to ...
J. Zlotnicki, G. N. Tsokas, G. Vargemezis   +2 more
doaj   +1 more source

Energy Storage System in Microgrids: Challenges and Opportunities

Energy Science &Engineering, EarlyView.
Hybrid integration of multiple Energy Storage Systems (ESSs) within renewable‐powered microgrids enhances reliability, flexibility, and economic sustainability. Lithium‐ion batteries, flow batteries, hydrogen storage, and thermal systems complement each other through coordinated control via Energy Management Systems.
Mohamed G. Moh Almihat, Josiah L. Munda
wiley   +1 more source