Results 11 to 20 of about 5,824,919 (291)

Time-lapse seismic attenuation as a tool for monitoring hydrocarbons and CO2 in geological materials [PDF]

open access: yes, 2011
Both laboratory experiments and theoretical models have shown seismic attenuation to be sensitive to various petrophysical properties of rock and pore fluids, making attenuation a potentially useful time-lapse attribute to measure and interpret through ...
Blanchard, Thomas David
core   +6 more sources

Energy Generation and Attenuation of Blast-Induced Seismic Waves under In Situ Stress Conditions

open access: yesApplied Sciences, 2022
During blasting in deep mining and excavation, the rock masses usually suffer from high in situ stress. The initial seismic energy generated in deep rock blasting and its attenuation with distance is first theoretically analyzed in this study.
Jianhua Yang   +3 more
doaj   +1 more source

Regional Seismic Wavefield Propagation [PDF]

open access: yes, 2004
Through the examination of local and regional seismic waveform data the crust and upper mantle of southern California are investigated. Using local and regional seismic phases such as Pn, Sn, PL, and surface waves, seismic wave velocities of interesting
Savage, Brian Kirk
core   +1 more source

Development of nonlinear analytical model and seismic analyses of a steel frame with self-centering devices and viscoelastic dampers [PDF]

open access: yes, 2011
This paper highlights the role of advanced structural analysis tools on the conception of high-performance earthquake-resistant structural systems. A new steel frame equipped with self-centering devices and viscoelastic dampers is described.
Karavasilis, Theodore L.   +10 more
core   +1 more source

Logic tree approach for probabilistic typhoon wind hazard assessment

open access: yesNuclear Engineering and Technology, 2019
Global warming and climate change are increasing the intensity of typhoons and hurricanes and thus increasing the risk effects of typhoon and hurricane hazards on nuclear power plants (NPPs).
Young-Sun Choun, Min-Kyu Kim
doaj   +1 more source

Noncontact Measurement and Detection of Instantaneous Seismic Attributes Based on Complementary Ensemble Empirical Mode Decomposition

open access: yesEnergies, 2017
Hilbert–Huang transform (HHT) is a popular method to analyze nonlinear and non-stationary data. It has been widely used in geophysical prospecting. This paper analyzes the mode mixing problems of empirical mode decomposition (EMD) and introduces the ...
Yaping Huang   +4 more
doaj   +1 more source

SCALE EFFECT IN SEISMOTECTONICS

open access: yesГеодинамика и тектонофизика, 2015
This publication consolidates and analyses experimental data in a wide range of scales in seismotectonics and geo­mechanics, from a micro-size seismic event (an earthquake focus of a few centimetres) to a mega earthquake.
G. G. Kocharyan
doaj   +1 more source

Attenuation characteristics analysis of seismic energy and its application to risk assessment in underground coal mines

open access: yesGeomatics, Natural Hazards & Risk, 2022
Seismic energy analysis is the basis of coal burst risk assessment. The prerequisite for utilizing seismic energy to quantify coal burst hazards is the accurate understanding of seismic energy attenuation.
Yaoqi Liu   +6 more
doaj   +1 more source

Seismic structural and non-structural performance evaluation of highly damped self-centering and conventional systems [PDF]

open access: yes, 2011
This paper evaluates the seismic structural and non-structural performance of self-centering and conventional structural systems combined with supplemental viscous dampers.
Karavasilis, Theodore L.   +5 more
core   +1 more source

SEISMIC ISOLATION AND ENERGY DISSIPATION: THEORETICAL BASIS AND APPLICATIONS [PDF]

open access: yes, 2008
The protection of the building from seismic events is a fundamental phase in the structures design should be introduced to avoid the loss of lives especially when it occurs in developing countries.
Marsico, Maria Rosaria
core   +1 more source

Home - About - Disclaimer - Privacy