Results 91 to 100 of about 240,017 (204)

Three-dimensional geoacoustic perturbative inverse technique for the shallow ocean water column [PDF]

, 2013
textThis work focuses on developing an inversion scheme to estimate water-column sound-speed fields in three dimensions. The inversion scheme is based on a linearized perturbative technique which utilizes estimates of modal travel times.
Bender, Christopher Matthew
core  

Upper-plate conduits linked to plate boundary that hosts slow earthquakes. [PDF]

Nat Commun, 2023
Arai R, Miura S, Nakamura Y, Fujie G, Kodaira S, Kaiho Y, Mochizuki K, Nakata R, Kinoshita M, Hashimoto Y, Hamada Y, Okino K.   +11 more
europepmc   +1 more source

Nonlinear amplitude versus angle inversion using hybrid quantum ant colony optimization and the exact Zoeppritz equation

Frontiers in Earth Science
Prestack amplitude versus offset (AVO) inversion is an essential tool to estimate elastic properties. Approximations of P-wave reflection coefficients based on the Zoeppritz equation are limited by the assumption of weak contrast and are inaccurate for ...
Yuxing Chen, Jiwei Cheng, Hongping Miao, Defu Feng, Chengci Wang, Chao Zhang, Mengxin Song   +6 more
doaj   +1 more source

A new method of alternating shooting of two different seismic sources for deep geophysical surveys. [PDF]

Sci Rep, 2023
Liu C, Fu J, Hua Q, Liu K, Zhi P, Pei Y, Zhou Q, Li X, Liu B.   +8 more
europepmc   +1 more source

The Nash-MTL-STCN for Prestack Three-Parameter Inversion [PDF]

Deep learning (DL) techniques have been widely used in prestack three-parameter inversion to address its ill-posed problems. Among these DL techniques, Multi-task learning (MTL) methods can simultaneously train multiple tasks, thereby enhancing model ...
Liao, Zhangquan, Peng, Junheng, Li, Huating, Liu, Yingtian, Li, Yong, Feng, Wen   +5 more
core   +1 more source

Reservoir characteristics analysis and favorable area prediction of Zhuhai Formation, Wenchang A oilfield, South China Sea

Frontiers in Earth Science
Wenchang A oilfield is a recently discovered low-permeability oilfield in the western South China Sea. The exploration target is the Zhuhai Formation, which reservoir lithology changes significantly, and the distribution of favorable reservoirs is ...
Jianning Liu
doaj   +1 more source

Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise. [PDF]

Sci Adv, 2023
Marjanović M, Carbotte SM, Stopin A, Singh SC, Plessix RÉ, Marjanović M, Nedimović MR, Canales JP, Carton HD, Mutter JC, Escartín J.   +10 more
europepmc   +1 more source

Episodic intraplate magmatism fed by a long-lived melt channel of distal plume origin. [PDF]

Sci Adv, 2023
Naif S, Miller NC, Shillington DJ, Bécel A, Lizarralde D, Bassett D, Hemming SR.   +6 more
europepmc   +1 more source

Bidirectional Long Short-term Neural Network Based on the Attention Mechanism of the Residual Neural Network (ResNet-BiLSTM-Attention) Predicts Porosity through Well Logging Parameters. [PDF]

ACS Omega, 2023
Sun Y, Zhang J, Yu Z, Zhang Y, Liu Z.
europepmc   +1 more source

Shale gas geological "sweet spot" parameter prediction method and its application based on convolutional neural network. [PDF]

Sci Rep, 2022
Qin Z, Xu T.
europepmc   +1 more source