Results 191 to 200 of about 3,083 (240)

Safety-Constrained Reinforcement Learning for Energy-Aware Transmission Scheduling in Seismic Wireless Sensor Networks. [PDF]

Sensors (Basel)
Nazamdin I, Reid A.
europepmc   +1 more source

Subsurface plumbing system architecture in the South Makassar Basin, offshore Indonesia, and its implications for methane emissions and geological storage. [PDF]

Sci Rep
Nugraha HD, Jamaludin SNF, Matsumoto R, Ohkawa S, Tomaru H, Juanda I, Herawati I, Astuti W, Angkasa SS.   +8 more
europepmc   +1 more source

Experimental evidence supporting a long-lived magma layer at the Martian core–mantle boundary

Pierru R, Gréaux S, Dominijanni S, Man L, Kono Y, Kakizawa S, Higo Y, Badro J, Frost D, Antonangeli D.   +9 more
europepmc   +1 more source

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Revisit seismic attenuation attributes: Influences of the spectral balancing operation on seismic attenuation analysis

Interpretation, 2021
Seismic attenuation analysis is important for seismic processing and quantitative interpretation. Nevertheless, classic quality factor estimation methods make certain assumptions that may be invalid for a given geologic target and seismic volume. For this reason, seismic attenuation attribute analysis, which reduces some of the theoretical assumptions,
Yihuai Lou, Naihao Liu, Fangyu Li
exaly   +2 more sources

Effects of Attenuation on Seismic Reflections

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
Seismic reflections at an interface are often regarded as the variation of the acoustic impedance (product of seismic velocity and density) in a media. In fact, they can also be generated due to the difference in absorption of the seismic energy. In this work, we investigate the impacts of attenuation on seismic reflections based on the diffusive ...
Haixia Zhao, Jingrui Luo, Yijie Zhang, Xiaokai Wang   +3 more
openaire   +1 more source

Seismic Attenuation - Friend or Foe

3rd Applied Shallow Marine Geophysics Conference, 2018
Summary Seismic attenuation is an important parameter to understand and parameterise, with implications for survey design, processing, interpretation, and inversion. Here we present a brief summary of the physical theory underpinning our understanding of attenuation and illustrate how this can be used to compensate for the loss of energy within a data ...
M. Vardy, L. Pinson
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A Procedure for the Attenuation of Seismic Multiples

Proceedings, 1995
The non-periodicity of long period multiples has long hampered their attenuation using conventional methods of removal such as predictive deconvolution and 1D autoconvolution. The following is a practical procedure for preconditioning data to make water bottom seismic multiples periodic.
M. G. Lamont, N. F. Uren
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AN ANISOTROPIC COLE–COLE MODEL OF SEISMIC ATTENUATION

Journal of Computational Acoustics, 2002
A simple model of seismic wave attenuation combining anisotropy with anelastic effects is constructed. The anelastic response is based on the Cole–Cole relaxation function. Time-stepping finite-difference and ray-asymptotic methods of numerical solution are discussed.
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EFFECTS OF POROSITY ON SEISMIC ATTENUATION

Journal of Computational Acoustics, 1994
Effects of porosity on the attenuation of wave propagation are studied. The effects of pore fluids and porous structures are significant on changing the shapes of propagating wavelets. The waveform change of a propagating wavelet is much more sensitive to porosity than intrinsic attenuation. The attenuation occurred in natural rocks may largely due to
YUE-FENG SUN, JOHN T. KUO, YU-CHIUNG TENG   +2 more
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Attenuations and amplitudes of seismic waves

Eos, Transactions American Geophysical Union, 1949
In researches previously published [Ricker, 1940, 1941, 1943, 1944, 1945], the author fast shown theoretically that the disturbance created by the detonation of a small charge of explosive in a homogeneous and isotropic Earth assumes a certain characteristic form, shaped by the Eartr absorption spectrum for elastic waves.
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