Results 111 to 120 of about 2,984,023 (326)

Seismic modeling using the frozen Gaussian approximation

, 2013
We adopt the frozen Gaussian approximation (FGA) for modeling seismic waves. The method belongs to the category of ray-based beam methods. It decomposes seismic wavefield into a set of Gaussian functions and propagates these Gaussian functions along ...
Albertin U., Folland G. B., Fomel S., Foster D., Gabor D., Gray S. H., Lu J., Nowack R., Popov M. M., Tanushev N. M.   +9 more
core   +1 more source

Scour‐Conditioned Seismic Fragility Analysis of Monopile‐Supported Offshore Wind Turbines

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Monopile‐supported offshore wind turbines (MS‐OWTs) are increasingly deployed in seismic coastal regions, where they face compound risks from earthquake loading and seabed scour. While past studies have addressed these hazards separately, seismic fragility under evolving scour conditions remains insufficiently understood. This study introduces
Francisco Pinto, Rodrigo Astroza, Felipe Vicencio, Raffaele De Risi   +3 more
wiley   +1 more source

Tight sandstone fluid detection technology based on multi-wave seismic data

Open Geosciences
The SX area of the Ordos Basin in China is characterized by small thickness and considerable lateral variation of the reservoir, and high heterogeneity. It is difficult to identify gas and water by conventional P-wave seismic data without fully utilizing
Yutan Dou, Daxing Wang, Mengbo Zhang, Fei Li, Guanghong Du, Yonggang Wang, Yuhua Zhao, Feng Liu, Yan Huang, Jie Zhang, Xiaojie Cui, Ligang Huang, Jun Zhu   +12 more
doaj   +1 more source

Fusion analysis of co-seismic response between broadband tiltmeters and broadband seismometers in Chengde area

地震科学进展
This article focuses on the co-seismic waveforms collected by the VP type broadband tiltmeters and the BBVS-120 type broadband seismometer at the Chengde seismic station. Using the methods of wavelet analysis and short time Fourier transform, six seismic
Donghui Yang, Chunling Ji, Jiaqi Wang, Wenjun Li, Yanhong Yu, Chengli Jiao, Jianqing Zhou   +6 more
doaj   +1 more source

Detectable seismic consequences of the interaction of a primordial black hole with Earth

, 2012
Galaxies observed today are likely to have evolved from density perturbations in the early universe. Perturbations that exceeded some critical threshold are conjectured to have undergone gravitational collapse to form primordial black holes (PBHs) at a ...
Alcock, Burns, Burns, Carr, Dahlen, Edmonds, Frans Pretorius, Hawking, Jeroen Tromp, Labun, Lisanti, Shravan Hanasoge, Sreekumar, Yang Luo, Zel'Dovich   +14 more
core   +1 more source

Seismic Design of Concrete Dams: An Integrated Risk‐Informed Performance‐Based (RIPB) Framework

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This paper advances the integration of risk‐informed principles into the seismic design of dams—a domain long guided by standards‐based, largely deterministic approaches. While performance‐based earthquake engineering is well established for buildings and bridges, its systematic adoption in dam engineering remains limited. We first address two
M. Amin Hariri‐Ardebili, Larry K. Nuss
wiley   +1 more source

Study on seismic displacement of coal-rock fracture based on radiation energy

International Journal of Coal Science & Technology
Accurately revealing the spatial distribution law of seismic displacement is significance for revealing the mechanism of dynamic load induced rockburst and guiding the dynamic support of roadway.
Shengquan He, Maoxin Tian, Xueqiu He, Tingxiang Ren, Dazhao Song, Feng Shen, Tuo Chen, Junjun Feng   +7 more
doaj   +1 more source

DETERMINATION OF COORDINATES OF SEISMIC WAVE SOURCE BY AMPLITUDE METHOD OF PASSIVE LOCATION

Геодинамика и тектонофизика, 2015
The paper presents results of the mathematical synthesis of the method of passive location of a seismic wave source. The method employs measurements of regular attenuation of seismic oscillation amplitudes.
Vasily D. Syten’ky
doaj   +1 more source

Modeling the Probability of Tsunami Fire Ignition Based on Data From the 2011 Tohoku and 2024 Noto Peninsula Earthquakes, With Recommendations to Reduce Emerging Fire Risk in Tsunami Vertical Evacuation Structures

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Recent tsunamigenic earthquakes in Japan have highlighted the emerging fire hazard triggered by tsunami inundation and its impact on tsunami vertical evacuation (TVE) structures. This new type of fire following earthquake, referred to as “tsunami fires,” may be a potential universal hazard that tsunami‐prone countries face; however, it has not
Tomoaki Nishino
wiley   +1 more source

Generalised Kinematic Single‐Impact and Multi‐Impact Models for Rocking Structures

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The rocking motion is fundamental in earthquake engineering, as it reflects the dynamic behaviour of many structural systems. However, simulating the impacts during rocking motion remains a challenging topic, as they occur in a very short time, generate high impulsive forces, cause sudden changes in velocities and result in rapid energy losses.
Georgios Vlachakis, Carla Colombo, Anastasios I. Giouvanidis, Paulo B. Lourenço   +3 more
wiley   +1 more source