Results 1 to 10 of about 6,081,189 (307)
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 +13 more
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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 +4 more
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Extended Coherence Function on The Topography for Generated Non-Uniform Record By Using Stochastic Method [PDF]
Journal of Structural and Construction Engineering, 2021 This study focuses on modeling spatial variation of earthquake ground motion using numerical methods. wave passage effect, incoherence effect and local site conditions effect are the effective parameters on this phenomenon which its investigated in ...
mohsen isari +2 more
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Predicting Models for Local Sedimentary Basin Effect Using a Convolutional Neural Network
Applied Sciences, 2023 Although the numerical models can estimate the significant influence of local site conditions on the seismic propagation characteristics near the surface in many studies, they cannot feasibly predict the seismic ground motion amplification in regular ...
Xiaomei Yang +5 more
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Frontiers in Earth Science, 2023 In the Ludian Ms6.5 earthquake (Yunnan, China), Longtoushan market town and its vicinity showed significant differences in earthquake damage. To explain this phenomenon, this paper discusses the local engineering geological conditions, local topographic ...
Liting Du, Liguo Jin, Zhenghua Zhou
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Machine learning based ground motion site amplification prediction
Frontiers in Earth Science, 2023 Site condition impact on seismic ground motion has been a complex but important subject in earthquake hazard analysis. Traditional studies on site amplification effect are either based on site response via wave propagation simulation or regression ...
Xiangqi Wang +6 more
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Dizhen xuebao, 2022 探讨了基于差分进化-人工神经网络构建沉积河谷地震响应代理模型的可行性。首先建立沉积河谷对地震波散射的求解方法，以半圆形、V形沉积河谷为例，以入射波条件、沉积内外介质属性、场地形状为特征参数，以沉积河谷地震动放大系数为预测目标参数，构建数据集；其次，建立沉积河谷地震动放大效应人工神经网络、差分进化-人工神经网络算法预测模型，对比两种算法计算精度和稳定性，并进行了特征参数敏感性分析。结果表明：人工神经网络能较好地预测沉积河谷地震动放大效应，使差分进化-人工神经网络预测模型的精度和稳定性显著提高 ...
Sibo Meng, Jiawei Zhao, Zhongxian Liu
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Distant Site Effects of Ingested Prebiotics [PDF]
Nutrients, 2016 The gut microbiome is being more widely recognized for its association with positive health outcomes, including those distant to the gastrointestinal system. This has given the ability to maintain and restore microbial homeostasis a new significance.
Stephanie Collins, Gregor Reid
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Rapid assessment of S-wave profiles from the inversion of multichannel
Annals of Geophysics, 1998 The importance of detailed knowledge of the shear-wave velocity structure of the upper geological layers was recently stressed in strong motion studies.
G. Delis, G. A. Tselentis
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Dizhen xuebao, 2022 回顾总结了近20年国内外关于地震动场地调整系数的主要研究成果，重点分析强震动观测和数值理论方法在考虑场地条件对地震动参数影响方面的效果，总结各类方法的适用性和优缺点，结合国内外相关规范条文对比分析国内外的主要成果，得出我国软土的场地调整系数值小于国际水平，并进一步分析了造成这种差异的原因。最后基于目前国际地震区划工作的发展趋势以及各行业相关规范的新技术需求，对新一代区划图的研究工作进行了展望。
Jingru Yan, Yushan Zhang, Wenliang Kan
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