Results 1 to 10 of about 1,251 (140)
Fourier Shell Analysis: k-Space-Based Metrics for Assessing Super-Resolution in 4D Flow MRI. [PDF]
Magn Reson MedABSTRACT Purpose To support the emerging field of super‐resolution (SR) in 4D flow MRI by proposing Fourier shell analysis to disentangle resolution enhancement from denoising effects during evaluation. Methods A thoracic aortic 4D flow MRI dataset was synthesized with various degrees of stenosis, providing ground truth flow fields generated using ...
Jacobs L, Dirix P, Kozerke S.
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Geochemistry, Geophysics, Geosystems, 2022 We present a new 3‐D seismic structural model of the eastern Indonesian region and its surroundings from full‐waveform inversion (FWI) that exploits seismic data filtered at periods between 15–150 s.
Deborah Wehner +7 more
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Frontiers in Earth Science, 2023 The thick Quaternary loess on the Loess Plateau of China produces strong seismic attenuation, resulting in weak reflections from subsurface exploration targets.
Ziduo Hu +6 more
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Frontiers in Earth Science, 2022 Accurately predicting the seismic wavefield is important for physics-based earthquake hazard studies and is dependent on an accurate source model, a good model of the subsurface geology, and the full physics of wave propagation.
Rasheed Ajala +2 more
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Geochemistry, Geophysics, Geosystems, 2023 Ultralow velocity zones (ULVZs) and seismic anisotropy are both commonly detected in the lowermost mantle at the edges of the two antipodal large low velocity provinces (LLVPs).
Jonathan Wolf, Maureen D. Long
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Comparison of straight-ray and curved-ray surface wave tomography approaches in near-surface studies [PDF]
Solid Earth, 2022 Surface waves are widely used to model shear-wave velocity of the subsurface. Surface wave tomography (SWT) has recently gained popularity for near-surface studies.
M. Karimpour, E. Slob, L. V. Socco
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ADI-based, conditionally stable schemes for seismic P-wave and elastic wave propagation problems [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2022 The modeling of P-waves has essential applications in seismology. This is because the detection of the P-waves is the first warning sign of the incoming earthquake. Thus, P-wave detection is an important part of an earthquake monitoring system.
Marcin Łoś +3 more
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Generalized Pattern Search Algorithm for Crustal Modeling
Computation, 2020 In computational seismology, receiver functions represent the impulse response for the earth structure beneath a seismic station and, in general, these are functionals that show several seismic phases in the time-domain related to discontinuities within ...
Mulugeta Dugda, Farzad Moazzami
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Annals of Glaciology, 2022 Antarctic firn presents an exotic seismological environment in which the behaviors of propagating waves can be significantly at odds with those in other Earth media.
Julien Chaput +2 more
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Seismic Exploration Methods for Structural Studies and for Active Fault Characterization: A Review
Applied Sciences, 2023 In this paper, seismic exploration methods are reviewed with a particular emphasis on the use of the reflection seismology to investigate the subsurface structures and characterize active faults.
Pier Paolo G. Bruno
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