Results 111 to 120 of about 2,068 (300)

Exploration of the South-Eastern Alps lithosphere with 3D refraction seismics project Alp 2002) – data acquisition in Slovenia

open access: yesGeologija, 2003
Using combined seismic refraction/wide-angle reflection method project Alp 2002 explored the contact zone between South-Eastern Alps, Dinarides and Pannonian basin.
Andrej Gosar
doaj  

Common-Reflection-Surface Stack with Global Simultaneous Multi-Parameter Velocity Analysis—A Fit for Shallow Seismics

open access: yesApplied Sciences
In many regions, particularly coastal areas, population growth, overuse of water, and climate change have put quality and availability of water under threat.
Zeno Heilmann, Gian Piero Deidda
doaj   +1 more source

A Study of the Impact of 4D-Seismic Data on TSVD-Based Schemes for History Matching

open access: yes, 2010
We discuss a TSVD (truncated singular value decomposition) optimization scheme for history matching. We are particularly interested in studying the performance of TSVD under integration of P-wave velocity data.
R. W. dos Santos   +5 more
core   +1 more source

Directionality Scaling of Scalar and Vector Ground Motion Intensity Measures

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The azimuthal directionality of earthquake ground‐motion intensity measures (IMs) is conventionally described by the ratios between the orientation‐independent maximum (RotD100) and median (RotD50) values over the horizontal plane. This study presents a refined characterization of the directionality of 31 IMs, including spectral accelerations (
Mao‐Xin Wang, Gang Wang
wiley   +1 more source

Integrated monitoring of the CO2 Storage Ketzin using a structure-based combination of seismics and geoelectrics

open access: yes, 2012
Geophysical monitoring at the CO2 pilot storage Ketzin comprises time-lapse seismic and geoelectric (ERT) measurements. Both types of measurements are known to image geological structures differently, in particular for a variable saturation of CO2.
Christopher Juhlin (23311180)   +7 more
core   +2 more sources

Advances in crosshole seismic reflection processing [PDF]

open access: yes, 1993
In recent years there have been significant advances in the acquisition and processing of crosshole seismic reflection data, and the method has been shown to be a high resolution imaging technique.
Rowbotham, Peter S
core  

An Intensity Measure‐Based Methodology for Ground Motion Orientation in Seismic Structural Assessment

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT In current dynamic time history assessment protocols, ground motion recordings are mostly oriented along fixed sensor directions. Consequently, the orientation of the principal resultant of rupture energy, which may control the maximum structural demand, remains undefined, precluding consistent correlation with physically detrimental ...
Santiago Londono‐Lopez   +4 more
wiley   +1 more source

Active Seismics to Determine Reservoir Characteristics of a Hot Dry Rock Geothermal System

open access: yes, 1987
Since 1981 three wells have been drilled to depths of between 2.0 and 2.6 km in the Carnmenellis granite, Cornwall, England in order to create a HDR geothermal system.
Green, A.S.P., Baria, R.
core  

Development and Validation of a Seismic Design Method for Anchored Retaining Walls

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Retaining walls with multiple anchor levels are widely used as permanent excavation support systems for the construction of linear infrastructures. Yet, their seismic behaviour remains largely unexplored, and current design approaches rely on conventional procedures that do not adequately reflect the actual dynamic response of these systems ...
Luigi Callisto   +2 more
wiley   +1 more source

Three‐Dimensional Analytical Model of a Podium Structure With Rocking Columns of Square Cross Section

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Allowing structural systems to uplift and rock during seismic excitation has emerged as an effective and inherently self‑centering form of seismic isolation. This paper develops a computationally efficient 3D analytical model suitable for the understanding of the behavior of rocking bridges.
Dimitra Adamopoulou   +1 more
wiley   +1 more source

Home - About - Disclaimer - Privacy