Results 71 to 80 of about 97,428 (295)

Pre-failure behaviour of an unstable limestone cliff from displacement and seismic data [PDF]

Natural Hazards and Earth System Sciences, 2010
We monitored the displacement and seismic activity of an unstable vertical rock slice in a natural limestone cliff of the southeast Vercors massif, southeast France, during the months preceding its collapse.
J.-L. Got, P. Mourot, J. Grangeon
doaj   +1 more source

Toward Forecasting Volcanic Eruptions using Seismic Noise

, 2007
During inter-eruption periods, magma pressurization yields subtle changes of the elastic properties of volcanic edifices. We use the reproducibility properties of the ambient seismic noise recorded on the Piton de la Fournaise volcano to measure relative
A Grêt, A Nercessian, A Peltier, A Peltier, A Ratdomopurbo, Alexandre Nercessian, B Chouet, B Chouet, B Voight, C Sens-Schönfelder, D Massonnet, D Patanè, D Patanè, F Brenguier, Florent Brenguier, G Poupinet, J Battaglia, KG Sabra, KG Sabra, KG Sabra, L Stehly, L Stieltjes, M Campillo, M Campillo, Michel Campillo, N Shapiro, Nikolai M. Shapiro, NM Shapiro, Olivier Coutant, P McLeod, R Snieder, RL Weaver, S Tait, SR Pride, U Wegler, Valérie Ferrazzini, Zacharie Duputel   +36 more
core   +4 more sources

Finite Element Modelling of Rocking and Hybrid Precast Walls under Seismic Loading

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT In recent years, self‐centring systems have received considerable research interest in the seismic design of precast concrete structures for their ability to limit damage and satisfy resilience requirements. Rocking and hybrid structural walls, characterised by the formation of a single gap at the wall–foundation interface, mitigate damage by ...
Andrea Belleri, Michele E. Bressanelli, Simone Labò, Jose I. Restrepo   +3 more
wiley   +1 more source

An Unsupervised Learning Method for Suppressing Ground Roll in Deep Pre-Stack Seismic Data Based on Wavelet Prior Information for Deep Learning in Seismic Data

Applied Sciences
Ground roll noise suppression is a crucial step in processing deep pre-stack seismic data. Recently, supervised deep learning methods have gained popularity in this field due to their ability to adaptively learn and extract powerful features.
Jiarui Xia, Yongshou Dai
doaj   +1 more source

General Framework for Multi‐Degree‐of‐Freedom Stiffness Matrix Updating for Iterative Solution Algorithms in Hybrid Simulation

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Iterative solvers are advantageous for handling nonlinear structural analysis problems. The iterative solvers often require updating the stiffness matrix, which limits their application in static and pseudo‐dynamic hybrid simulations because: (1) updating the stiffness matrix of a system involving a physical specimen is challenging; (2 ...
Junyan Xiao, Oh‐Sung Kwon, Evan Bentz
wiley   +1 more source

Seismic arrival enhancement through the use of noise whitening [PDF]

, 2017
A constant feature in seismic data, noise is particularly troublesome for passive seismic monitoring where noise commonly masks microseismic events. We propose a statistics-driven noise suppression technique that whitens the noise through the calculation
Belouchrani, Bensen, Birnie, Claire Birnie, Doug Angus, Forghani-Arani, Forghani-Arani, Gambino, Gutenberg, Hom, Kit Chambers, Maxwell, Maxwell, Oye, Roach, Roux, Scharf, Schorlemmer, Staněk, Wang   +19 more
core   +1 more source

Evaluation of the Adequacy of Design Specifications for Nonstructural Components in a Reticular Structure

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Nonstructural components (NSCs) installed in large‐span reticular structures were frequently severely damaged during earthquakes, even when the primary structure remained intact. Existing seismic design specifications for NSCs were predominantly developed for upright structures such as multi‐storey buildings and offer no guidance for reticular
Xudong Zhi, Fengze Li, Duozhi Wang, Nawawi Chouw, Rong Zhang, Bo Huang, Feng Fan   +6 more
wiley   +1 more source

Phase noise due to vibrations in Mach-Zehnder atom interferometers

, 2006
Atom interferometers are very sensitive to accelerations and rotations. This property, which has some very interesting applications, induces a deleterious phase noise due to the seismic noise of the laboratory and this phase noise is sufficiently large ...
Büchner, M., Jacquey, M., Miffre, A., Trénec, G., Vigué, J.   +4 more
core   +3 more sources

Ground-based gravitational-wave detection: now and future [PDF]

, 2008
In the past three years, the first generation of large gravitational-wave interferometers has begun operation near their design sensitivities, taking up the mantle from the bar detectors that pioneered the search for the first direct detection of ...
Whitcomb, Stanley E.
core   +1 more source

Estimating Arias Intensity From Response Spectrum

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Arias intensity serves as a crucial metric to measure ground motion energy and is extensively utilized in earthquake engineering to analyze structural damage, slope instability, and the potential for soil liquefaction. Nevertheless, in many practical design scenarios, only the response spectrum is available, without corresponding information ...
Longfei You, Haizhong Zhang, Yan‐Gang Zhao   +2 more
wiley   +1 more source