Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Hans B. Helle"'
Publikováno v:
Geofísica Internacional, Vol 44, Iss 2, Pp 123-142 (2005)
Using an improved global pseudospectral modeling algorithm we synthesize seismograms generated by oceanic and continental earthquakes. Attention is given to attenuation, to explicit modeling of boundary conditions at the ocean-bottom interface, simul
Externí odkaz:
https://doaj.org/article/1817a2aaae8441ed81bc877e14048f4b
Publikováno v:
Geofísica Internacional, Vol 44, Iss 2, Pp 123-142 (2005)
El algoritmo de modulación seudoespectral es mejorado y aplicado a la simulación de sismogramas generados por sismos oceánicos y continentales, como atención a la atenuación y a la modelación explícita de condiciones a la frontera en el fondo
Externí odkaz:
https://doaj.org/article/2baf5cbb907b44f0a3c7d94508ef761d
Publikováno v:
Poromechanics II ISBN: 9781003078807
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c33c7c09d9aaefbdd09120c4316ac436
https://doi.org/10.1201/9781003078807-117
https://doi.org/10.1201/9781003078807-117
Autor:
Mrinal K. Sen, Leon Knopoff, D.A. Mendelsohn, L. Neil Frazer, Hans B. Helle, Alexander Druzhinin, David R. Dalton, Andrzej Hanyga, A. W. Trorey, Kamill Klem-Musatov, Martin Tygel, Jan Drewes Achenbach, José M. Carcione, Fred J. Hilterman, Jan Pajchel, Matthew Yedlin, P.M. Bakker, Boris Zavalishin, John R. Berryhill, Arkady Aizenberg, Bjørn Ursin, Anthony F. Gangi, Arthur K. Gautesen
Publikováno v:
Seismic Diffraction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::813c3c458081a176c307cc85be886432
https://doi.org/10.1190/1.9781560803188.ch2
https://doi.org/10.1190/1.9781560803188.ch2
Publikováno v:
GEOPHYSICS. 76:N37-N45
Source rocks are described by a porous transversely isotropic medium composed of illite and organic matter (kerogen, oil, and gas). The bulk modulus of the oil/gas mixture is calculated by using a model of patchy saturation. Then, the moduli of the k
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5349741fe0885364cb32b76146799197
https://doi.org/10.1190/geo2010-0258.1
https://doi.org/10.1190/geo2010-0258.1
Autor:
Jan Pajchel, Milana Ayzenberg, Arkady Aizenberg, Bjørn Ursin, Kamill Klem-Musatov, Hans B. Helle
Publikováno v:
GEOPHYSICS. 72:SM19-SM34
We present an improved method for modeling 3D acoustic wavefields scattered at smooth curved interfaces. The approach is based on a high-frequency approximation of surface integral propagators and a correct description of their boundary values in ter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f43e3342993d1cc713b201d2eec75d9a
https://doi.org/10.1190/1.2757616
https://doi.org/10.1190/1.2757616
Publikováno v:
GEOPHYSICS. 71:F31-F47
We present a mathematical analysis of borehole stability when drilling through rock salt. First, we consider an elastic transversely isotropic medium and find the optimal mud weight as a function of the vertical overburden and horizontal tectonic str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd58c48d6d8104052f351981099bc3a4
https://doi.org/10.1190/1.2195447
https://doi.org/10.1190/1.2195447
Publikováno v:
Geofísica Internacional. 44:123-142
Using an improved global pseudospectral modeling algorithm we synthesize seismograms generated by oceanic and continental earthquakes. Attention is given to attenuation, to explicit modeling of boundary conditions at the ocean-bottom interface, simul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::254724fcbc4866951d0bfedc8190af28
https://doi.org/10.22201/igeof.00167169p.2005.44.2.248
https://doi.org/10.22201/igeof.00167169p.2005.44.2.248
Publikováno v:
GEOPHYSICS. 70:N17-N26
We derive the time-domain stress-strain relation for a porous medium composed of n − 1 solid frames and a saturating fluid. The relation holds for nonuniform porosity and can be used for numerical simulation of wave propagation. The strain-energy d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bbca8d7490491a5859af4121644d113
https://doi.org/10.1190/1.1897035
https://doi.org/10.1190/1.1897035
Autor:
Hans B. Helle, José M. Carcione
Publikováno v:
GEOPHYSICS. 69:825-839
We investigate some aspects of the physics of wave propagation at the ocean bottom (ranging from soft sediments to crustal rocks). Most of the phenomena are associated to the presence of attenuation. The analysis requires the use of an anelastic stre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e80fdc5d6a9779294cea6ae871eb13c6
https://doi.org/10.1190/1.1759469
https://doi.org/10.1190/1.1759469