Results 1 to 10 of about 181,923 (329)

Long Short-Term Memory Recurrent Network Architectures for Electromagnetic Field Reconstruction Based on Underground Observations

Atmosphere
Deep underground laboratories offer advantages for conducting high-precision observations of weak geophysical signals, benefiting from a low background noise level.
Yixing Tian, Chengliang Xie, Yun Wang
doaj   +1 more source

Modular polynomials via isogeny volcanoes

, 2012
We present a new algorithm to compute the classical modular polynomial Phi_n in the rings Z[X,Y] and (Z/mZ)[X,Y], for a prime n and any positive integer m. Our approach uses the graph of n-isogenies to efficiently compute Phi_n mod p for many primes p of
Broker, Reinier, Lauter, Kristin, Sutherland, Andrew V.   +2 more
core   +1 more source

The role of substrate hydrogeology and surface hydrology in the construction of phreatomagmatic volcanoes on an active monogenetic field (Auckland, New Zealand) : a thesis presented in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Earth Science at Massey University, Palmerston North, New Zealand [PDF]

, 2015
Material removed for copyright reasons (appendices B, D and E): Agustín-Flores, J., Németh K., Cronin, S., Lindsay, J., Kereszturi, G., Brand, B., & Smith, I.E.M. (2014).
Agustín Flores, Javier
core   +1 more source

A Novel Method for Denoising Lunar Satellite Gravity Anomaly Data Based on Prior Knowledge Deep Learning

Remote Sensing
High-resolution lunar gravity anomaly data are of great significance for the study of the lunar crust and lithosphere structure, asymmetric thermal evolution, impact basin subsurface structure and mass tumor genesis, breccia, and magmatism.
Qingkui Meng, Lianghui Guo, Jing Yang, Yizhou Xu   +3 more
doaj   +1 more source

Trace elements mobility in soils from the hydrothermal area of Nisyros (Greece)

Annals of Geophysics, 2015
Nisyros Island, Greece, is a stratovolcano known for its intense hydrothermal activity. On June 2013, during a multidisciplinary field campaign, soil samples were collected in the caldera area to determinate the main mineralogical assemblages and to ...
Kyriaki Daskalopoulou, Sergio Calabrese, Silvia Milazzo, Lorenzo Brusca, Sergio Bellomo, Walter D'Alessandro, Konstantinos Kyriakopoulos, Franco Tassi, Francesco Parello   +8 more
doaj   +1 more source

The isotropic and anisotropic passive seismic tomography for mineral exploration: a case study of Dongchuan copper deposit, China

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
Conventional metallic mineral exploration has primarily relied on potential field and electromagnetic methods, while reflection-based seismic methods have seen limited application in this field.
Xiuping Qi, Zhikun Liu, Yuqian Guo, Xinyang He, Liang Tuo, Jinli Huang   +5 more
doaj   +1 more source

Volcanic Hazard Assessment of a Monogenetic Volcanic Field with Sporadic and Limited Information: Deterministic Approach for Harrat Lunayyir, Saudi Arabia

GeoHazards
Saudi Arabia is experiencing interactions between ongoing urbanization, tourism growth, infrastructure projects in western regions along the Red Sea, and volcanic hazards. The area contains extensive monogenetic volcanic fields with hundreds of volcanoes
Károly Németh, Abdulrahman Sowaigh, Mahmoud Ashor, Mostafa Toni, Vladimir Sokolov   +4 more
doaj   +1 more source

Maximum warning times for imminent volcanic eruptions [PDF]

, 2005
Accelerations in seismicity are important precursors to eruptions at volcanoes reawakening after extended repose intervals. These have previously been quantified for subduction-zone settings in terms of the linkage of crustal faults by shearing ...
Kilburn, CRJ, Sammonds, PR
core   +1 more source

Tephra fallout hazard assessment for a hydrovolcanic eruptive scenario in Mayotte

Scientific Reports
The new submarine volcano Fani Maoré offshore Mayotte (Comoros archipelago) discovered in 2019 has raised the awareness of a possible future eruption in Petite-Terre island, located on the same 60 km-long volcanic chain.
Audrey Michaud-Dubuy, Jean-Christophe Komorowski, Tristan Lacombe, Lucia Gurioli   +3 more
doaj   +1 more source

Experimental Study on Long Short-term Memory Networks for Identifying P-wave Primary Phase

CT Lilun yu yingyong yanjiu
Identifying primary phases of seismic waveforms is a routine task in seismic data processing. Owing to the low efficiency of manual identification and the influence of human subjective factors, many methods for the automatic identification of the primary
Tianzhe WANG, Wanji ZHANG, Shanbo QI, Guoming JIANG   +3 more
doaj   +1 more source