Results 151 to 160 of about 23,849,149 (246)

Mercury cycling during the last glacial period in Arctic Lake El'gygytgyn, NE Russia

Journal of Quaternary Science, EarlyView.
ABSTRACT Tectonic processes play a key role in the global mercury (Hg) cycle on geological timescales, by mobilising Hg from deep Earth reservoirs to the surface. These natural fluxes also introduce a dynamic component to the terrestrial Hg cycle that can interact with other environmental signals and influence Hg delivery to sedimentary records.
Alice R. Paine, Joost Frieling, Bernd Wagner, Martin Melles, Volker Wennrich, Tamsin A. Mather, Stuart A. Robinson, David M. Pyle   +7 more
wiley   +1 more source

Wavelet-convolutional neural network for fault prediction in coal mine seismic data. [PDF]

Sci Rep
Zou G, Han C, Yeh HG, Peng S.
europepmc   +1 more source

An Early Warning System for Earthquake Prediction from Seismic Data Using Batch Normalized Graph Convolutional Neural Network with Attention Mechanism (BNGCNNATT). [PDF]

Sensors (Basel), 2022
Bilal MA, Ji Y, Wang Y, Akhter MP, Yaqub M.   +4 more
europepmc   +1 more source

Detecting Loosening of Bolt‐Flanged Pipe Using Smoothed Pseudo Wigner–Ville Distribution: Digital Twin‐Based Approach Using Convolution Neural Networks

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this paper, an integrated digital twin‐based fault‐diagnosis framework is proposed to detect bolt loosening in flanged pipe connections. The approach combines finite element‐based numerical modeling, experimental modal analysis, and advanced signal processing‐assisted deep learning to achieve reliable loosening detection under operational ...
Milad Shabani Yousefabad, Behzad Totakhaneh Bonab, Morteza Homayoun Sadeghi, Mir Mohammad Ettefagh, Mohammad Reza Chalak Qazani   +4 more
wiley   +1 more source

Earthquake Early Warning System for Izmir, Western Anatolia, Türkiye Based on Multi-Station Similarity Analysis and Real-Time Seismic Data Processing. [PDF]

Sensors (Basel)
Doğan Y, Başbuğ A, Semirgin F, Kaya YE, Çınar O, Sözbilir H, Özdağ ÖC, Yılmaz R, Kut A, Tamer Ö, Çakır R, Utku M, Özçelik Ö, Softa M.   +13 more
europepmc   +1 more source

3-D Multi-Component Reverse Time Migration Method for Tunnel Seismic Data. [PDF]

Sensors (Basel), 2021
Guan P, Shao C, Jiao Y, Zhang G, Li B, Zhou J, Huang P.   +6 more
europepmc   +1 more source

Effects of Ambient Moisture and Large‐Strain Dynamic Preloading on the Dynamic Properties of the EAC‐1A Regolith Simulant

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The EAC‐1A lunar mare simulant, a silty sand, was selected by the European Astronaut Center (EAC) for use in the LUNA analogue facility's lunar simulation testbed. Its stress‐ and strain‐dependent shear modulus and damping ratio were determined via resonant column testing on specimens prepared either from ambient moisture material or oven ...
Christos Vrettos
wiley   +1 more source

Seismic data denoising based on attention dual dilated CNN. [PDF]

Sci Rep
Hu H, Wei Y, Chen H, Fu X, Zhang J, Wang Q, Cai S.   +6 more
europepmc   +1 more source

A Phase‐Field Model for Quasi‐Dynamic Rupture Nucleation and Propagation of In‐Plane Faults

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Computational modeling of faulting processes is an essential tool for understanding earthquake mechanics but remains challenging due to the structural and material complexities of fault zones. The phase‐field method has recently enabled unified modeling of fault propagation and off‐fault damage within a fracture‐mechanics‐based framework ...
Fan Fei, Md Shumon Mia, Ahmed E. Elbanna, Jinhyun Choo   +3 more
wiley   +1 more source

Efficient seismic data denoising via multi-scale attention network with depthwise separable and residual dilated convolutions. [PDF]

Sci Rep
Yao Z, Hao L, Qin L, Chen J, Li W.
europepmc   +1 more source