Results 21 to 30 of about 37,962 (266)
Regional-scale joint seismic body- and surface-wave travel time tomography
地球与行星物理论评, 2023 To make full use of seismograms to put tight constraints on the structure of subsurface and earthquake sources has always been the research focus in seismology.
Hongjian Fang +3 more
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Changes of Functional Recovery of Ankle Joint with Application of Rehabilitation Exercise Program after Arthroscopic Modified Brostrom Operation: A Pilot Study [PDF]
The Asian Journal of Kinesiology, 2021 OBJECTIVES The purpose of this study was to demonstrate its effectiveness by applying a systematic rehabilitation exercise program to patients after arthroscopic modified Brostrom operation.
Ji Myeong Park, Ho Jin Kim, Se Hee Kong
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Atmosphere, 2016 In this paper, we present a new estimation of the atmospheric refractivity profile combining the scattering signal (electromagnetic wave propagation loss) and the direct signal (phase delay). The refractivity profile is modeled using four parameters, i.e.
Qixiang Liao, Zheng Sheng, Hanqing Shi
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Case studies of 2D cross gradient joint inversion of seismic refraction and DC resistivity data: Potential and limitations [PDF]
E3S Web of ConferencesSeismic refraction tomography (SRT) and electrical resistivity tomography (ERT) 2D profiles are commonly employed in near surface geophysical surveys to gather subsurface information.
Seive Benjamin, Boulay Antonin
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Joint inversion of borehole-surface direct-current resistivity data
Meitian dizhi yu kantanObjectiveThe conventional inversion of surface direct-current (DC) resistivity data faces challenges such as limited exploration accuracy and depth.
Kaijun XU +4 more
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Two-Dimensional Full-Waveform Joint Inversion of Surface Waves Using Phases and Z/H Ratios
Applied Sciences, 2021 Surface-wave dispersion and the Z/H ratio are important parameters used to resolve the Earth’s structure, especially for S-wave velocity. Several previous studies have explored using joint inversion of these two datasets.
Chao Zhang, Ting Lei, Yi Wang
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Dizhen xuebao, 2018 利用弹性波的初至波和面波，应用交叉梯度算子，联合反演了近地表的二维纵横波速度和衰减参数，并提出了采用一维弹性波正演模拟，应用二维Tikhonov正则化，同时反演出二维速度模型和衰减模型的方法。理论模型测试和实际数据应用结果均表明本文算法极大地提高了计算效率，同时能够反演出可靠的速度模型和衰减模型。
Yue Wang, Jie Zhang
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High-resolution seismic inversion method based on joint data-driven in the time-frequency domain
Artificial Intelligence in GeosciencesSeismic inversion can be divided into time-domain inversion and frequency-domain inversion based on different transform domains. Time-domain inversion has stronger stability and noise resistance compared to frequency-domain inversion.
Yu Liu, Sisi Miao
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Frontiers in Earth Science, 2023 As an airborne electromagnetic method induced by natural sources, the Z-axis tipper electromagnetic (ZTEM) system can primarily recover near-surface shallow structures, due to band-limited frequencies (usually 30–720 Hz) of the airborne survey and high ...
Xiaoyue Cao +6 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT A lethal round‐cell malignancy with an MN1::ZNF341 fusion has recently been reported in three infants. Here, we describe four further tumors, three in newborns (including monozygotic twins), and one in an adolescent. Detailed clinical, radiological, and histopathological data differentiate these tumors from their main mimics, neuroblastoma and
Thomas R. W. Oliver +25 more
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