Results 1 to 10 of about 2,719,448 (169)

Site effects how-to and when: An overview of retrospective techniques to accommodate site effects in multi-site neuroimaging analyses [PDF]

Frontiers in Neurology, 2022
Site differences, or systematic differences in feature distributions across multiple data-acquisition sites, are a known source of heterogeneity that may adversely affect large-scale meta- and mega-analyses of independently collected neuroimaging data ...
Johanna M. M. Bayer, Johanna M. M. Bayer, Paul M. Thompson, Christopher R. K. Ching, Mengting Liu, Andrew Chen, Andrew Chen, Alana C. Panzenhagen, Alana C. Panzenhagen, Neda Jahanshad, Andre Marquand, Lianne Schmaal, Lianne Schmaal, Philipp G. Sämann   +13 more
doaj   +5 more sources

Stochastic Simulation of Strong Ground Motions From Two M > 5 Uttarakhand Earthquakes

Frontiers in Earth Science, 2021
Many studies based on the geodetic data and statistical analysis of seismicity have pointed out that sufficient amount of stress accumulated in the Himalayan plate boundary may host a big earthquake.
Nitin Sharma, D. Srinagesh, G. Suresh, D. Srinivas   +3 more
doaj   +1 more source

Novel Evaluation Method for Site Effect on Earthquake Ground Motion Based on Modified Horizontal to Vertical Spectral Ratio

Frontiers in Earth Science, 2022
The effect of local site conditions on the earthquake ground motion is a very important factor to be considered in engineering seismic fortification.
Xiaojun Li, Na Li, Mianshui Rong, Qing Dong   +3 more
doaj   +1 more source

Vs30 and depth to bedrock estimates from integrating HVSR measurements and geology-slope approach in the Oslo area, Norway

Frontiers in Earth Science, 2023
In order to estimate well-constrained seismic hazard and risk on local scales, the knowledge of site amplification factors is one of several important requirements.
Federica Ghione, Federica Ghione, Andreas Köhler, Andreas Köhler, Anna Maria Dichiarante, Ingrid Aarnes, Volker Oye, Volker Oye   +7 more
doaj   +1 more source

Horizontal seismic wave at ground surface from transfer function based on ambient noise

Frontiers in Earth Science, 2023
Earthquake detection can be improved by ensuring that seismometer sites experience little artificial noise in the surrounding environment. To minimize noise, seismological stations should be positioned in rocky mountainous areas without nearby valleys ...
Doyoon Lim, Jae-Kwang Ahn
doaj   +1 more source

Spatial Variation and Frequency Dependence of Lg Wave Attenuation With Site Response Correction Along the CCSE Array in Central California, US

Geochemistry, Geophysics, Geosystems, 2022
We estimate lateral Lg wave attenuation (Q) structure at four center frequencies (0.75, 1, 2 and 2.75 Hz) along the Central California Seismic Experiment array in western US crossing the San Andreas Fault and Central Valley.
Jeena Yun, YoungHee Kim, Robert W. Clayton   +2 more
doaj   +1 more source

Evaluation of seismic responses of an arch dam under non-uniform ground motion using random vibration [PDF]

Journal of Structural and Construction Engineering, 2020
To investigate the seismic responses of dams due to ground non uniform displacements, the records of earthquake displacements are required. Such data is seldom recorded during a specific earthquake and in the most cases the recorded data in not ...
Reza Tarinejad, Hamed NouriNavroud, Ramtin Sobhkhiz, Mohsen Isari, Hamed Mahjoub   +4 more
doaj   +1 more source

MITIGASI BENCANA BERDASARKAN NILAI SHEAR STRAIN TANAH AKIBAT GEMPA BUMI PADA TEMPAT PEMBUANGAN AKHIR (TPA) NGIPIK, GRESIK

Rekayasa Sipil, 2020
Ngipik Landfill located in Gresik, East Java has a several active fault. As a result, this area has high possibility as an earthquake prone area. In addition, It has not prevent’s layer under the bottom of the construction to control the leachate’s ...
Siti Nurlita Fitri, Ria Asih Aryani Soemitro, Dwa Desa Warnana   +2 more
doaj   +1 more source

基于地脉动谱比的龙头山集镇局部场地特征分析

Dizhen xuebao, 2023
地脉动法已被广泛应用于场地特征分析，本文依据鲁甸龙头山集镇老行政机关办公区、老街区及骡马口村区三个震害严重区域的场地特征地脉动，并结合各区内建筑结构特点和局部场地效应分析了龙头山集镇场地特征对震害的影响，结果表明：各测试区具有显著的场地放大效应，且存在方向性差异；参考点谱比法与H/V谱比法虽有一定差异，但两方法的优势频带基本吻合；老行政机关办公区和老街区的建筑多为砖混结构，其震害较重是由其场地显著的放大效应及共振效应共同作用引起的；老街区与骡马口村区的土木与土石结构震害较重主要是由场地放大效应引起的。
Jialong Ding, You Zhou, Bing Hao, Yuandong Li, Zhenghua Zhou, Lai Wei, Xin Wei, Jiami Song   +7 more
doaj   +1 more source

Probabilistic model for seismic effects on soft soil sites

Yantu gongcheng xuebao, 2023
The seismic response exhibits strong nonlinear amplification on soft soil sites. The common practice in different countries and regions for the seismic design codes is to provide a set of adjustment coefficients that are consistent with their respective ...
LI Ruishan 1, WU Jinhui 1, CHEN Longwei 1, YUAN Xiaoming 1, LI Mingrui 2
doaj   +1 more source