Results 131 to 140 of about 1,557 (307)

Repeatability and Parasitic Out‐of‐Plane Motion in Controlled Rocking Structures With Cylindrical Columns: Results From Triaxial Shake Table Tests

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Self‐centering rocking structures outperform conventional ones since they show zero post‐earthquake damage and excellent recentering; however, their applications remain limited due to concerns that rocking is extremely sensitive and nonrepeatable. This paper investigates the repeatability and parasitic out‐of‐plane motion of controlled rocking
Antonios A. Katsamakas
wiley   +1 more source

Mathematical models of seismics in composite media: elastic and poro-elastic components

Electronic Journal of Differential Equations, 2016
In the present paper we consider elastic and poroelastic media having a common interface. We derive the macroscopic mathematical models for seismic wave propagation through these two different media as a homogenization of the exact mathematical model ...
Anvarbek Meirmanov, Marat Nurtas
doaj  

Near surface geophysical prospecting using engineering seismics and electric resistivity tomography

, 2011
W artykule wymieniono i omówiono kilka przykładów badań geofizycznych (i ich wyników) wykonanych przez Przedsiębiorstwo Badań Geofizycznych Sp. z o.o., dotyczących płytkiej prospekcji ośrodka geologicznego. Przedstawione przykłady odnoszą się do badań, w
Pacanowski, G., Ostrowski, S.
core  

Advances in crosshole seismic reflection processing [PDF]

, 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  

Uneven Impacts of Seawall Heightening on Tsunami Risk Reduction under Rising Sea Levels: Probabilistic Scenarios from the Japan Trench

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Disasters exacerbated by climate change have prompted adaptation measures, including seawall heightening, which is an effective approach to protecting coastal areas. However, the combined effect of rising sea levels and tsunamis can create a compound coastal hazard, in which long‐term sea level rise amplifies the impact of tsunamis.
Yushi Miki, Anawat Suppasri, Constance Ting Chua, An‐Chi Cheng, Tomoya Iwasaki, Yugo Shinozuka, Takafumi Ogawa, Fumihiko Imamura   +7 more
wiley   +1 more source

Cross‐Entropy of Power Spectral Density Function: A Modal Identification Framework

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The power spectral density (PSD) function of measured structural response contains a significant amount of information, including the modal parameters (natural frequencies, damping ratios). Output‐only system identification or modal identification technique can be used for extracting such modal parameters from the measured response or its ...
Su‐Hong Kim, Jae‐Seung Hwang, Dae‐Kun Kwon, Ahsan Kareem   +3 more
wiley   +1 more source

A deep learning-aided approach for estimating field permeability map by fusing well logs, well tests, and seismic data

Petroleum
Obtaining reliable permeability maps of oil reservoirs is crucial for building a robust and accurate reservoir simulation model and, therefore, designing effective recovery strategies.
Grigoriy Shutov, Viktor Duplyakov, Shadfar Davoodi, Anton Morozov, Dmitriy Popkov, Kirill Pavlenko, Albert Vainshtein, Viktor Kotezhekov, Sergey Kaygorodov, Boris Belozerov, Mars M. Khasanov, Vladimir Vanovskiy, Andrei Osiptsov, Evgeny Burnaev   +13 more
doaj   +1 more source

Basic Geophysics - The Seismic Slowness

, 2019
Why earthquake ray paths are curved?
Barth, Andreas
core   +1 more source

Learning Rocking Dynamics From Sparse Shake‐Table Data With Interpretable Physics‐Informed Neural Networks

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT We present a hybrid interpretable Physics‐Informed Neural Network Long‐Short Term Memory (Hybrid PINN LSTM) framework for predicting the seismic response of rocking blocks. Existing analytical models rely on uncertain idealizations, while purely data‐driven and machine‐learning approaches lack physical consistency and interpretability.
Shirley Shen, Christian Málaga‐Chuquitaype   +1 more
wiley   +1 more source

Correlation of time-different ground radiometry datasets on an example of fault survey (Hradište border fault, Turiec Basin, Western Carpathians, Slovakia)

Contributions to Geophysics and Geodesy
Complex geophysical survey (seismic tomography, electrical resistivity tomography and electromagnetic interference measurement, spontaneous potential, ground penetration radar, gravimetry, magnetometry and radiometry) was carried out along 450 m-long ...
Andrej MOJZEŠ
doaj   +1 more source