Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Ray McGarry"'
Autor:
Yilong Qin, Ray McGarry
Publikováno v:
SEG Technical Program Expanded Abstracts 2013.
We present a method for calculating angle gathers from anisotropic elastic RTM. Reflection angle and azimuth are determined from direction vectors calculated directly from the propagating wavefields. We show that, depending on how the direction vecto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::536a3b03b4d6d07fe96197efa2bf9df2
https://doi.org/10.1190/segam2013-0949.1
https://doi.org/10.1190/segam2013-0949.1
Publikováno v:
SEG Technical Program Expanded Abstracts 2012.
A combination of the FDTD technique and Mittet's mapping method is a powerful and fast numerical tool for solution of marine controlled source electromagnetic problems. The efficiency of this technique can be further improved by using optimized, disp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5de3d5c2cf814815e6b4e6d4057d5afb
https://doi.org/10.1190/segam2012-1161.1
https://doi.org/10.1190/segam2012-1161.1
Publikováno v:
SEG Technical Program Expanded Abstracts 2011.
A common finite difference implementation of reverse time migration with tilted transverse isotropy (TTI) follows the formulation of Alkhalifah (2000), Fletcher et. al. (2008) and Zhou et. al. (2006). The finite difference implementation of these equ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::141e6cdd7538ee037e2a7b6d7dc845c1
https://doi.org/10.1190/1.3627849
https://doi.org/10.1190/1.3627849
Publikováno v:
SEG Technical Program Expanded Abstracts 2011.
We present a scheme for 2D and 3D modeling of elastic wave propagation in general anisotropic media using finite difference approximations on a Lebedev grid. Key to the efficiency and practicality of such a scheme is minimization of the number of spa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78744cf3adc09bb8bae8ffc07e9de9ec
https://doi.org/10.1190/1.3627782
https://doi.org/10.1190/1.3627782
Autor:
Damir Pasalic, Ray McGarry
Publikováno v:
SEG Technical Program Expanded Abstracts 2010.
A Discontinuous Mesh Finite Difference (DMFD) scheme is developed for the solution of 2-D and 3-D acoustic wave equations. Vertical cell size ( ) is a continuous function of depth, while lateral cell sizes ( ) vary discontinuously across a number of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::721bc61d60212c8b29dd89e7a41e28cc
https://doi.org/10.1190/1.3513457
https://doi.org/10.1190/1.3513457
Publikováno v:
SEG Technical Program Expanded Abstracts 2009.
We give an overview of an implementation of Reverse Time Migration (RTM) on heterogeneous multi-core hardware based on Graphics Processing Units (GPUs). We demonstrate the clear advantages of GPU-based hardware for RTM, not only in terms of performan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75302eaee2c282fbc7061ad28863b056
https://doi.org/10.1190/1.3255428
https://doi.org/10.1190/1.3255428
Autor:
Ray McGarry, Peyman P. Moghaddam
Publikováno v:
SEG Technical Program Expanded Abstracts 2009.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e014039219fbe748bd22e3f53f0d5149
https://doi.org/10.1190/1.3255611
https://doi.org/10.1190/1.3255611
Publikováno v:
FEMS microbiology reviews. 20(3-4)
Interactions between element chemistry and the ambient geochemistry play a significant role in the control of radionuclide migration in the geosphere. These same interactions influence radionuclide release from near surface, low level radioactive was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e466427d14f160adcafe2a4b9ff6c236
https://pubmed.ncbi.nlm.nih.gov/9340003
https://pubmed.ncbi.nlm.nih.gov/9340003