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Charting New Horizons UMPSA KIK 2025 takes flight [PDF]
PEKAN, 16 January 2025 – The Innovative & Creative Group (KIK) is making a strong ...
Wan Jumani, Fauzi +2 more
core +2 more sources
基于日本K-NET和KiK-net台网的4 695条俯冲带板内地震记录,采用最小二乘法对阻尼修正系数(DMF)的几何均值进行关于阻尼比和谱周期的回归拟合,分场地类别建立了考虑阻尼比和谱周期的竖向加速度谱DMF模型。为探究震源、路径和场地效应对该模型残差分布的影响,采用随机效应模型将残差分离得到各类残差及相应的残差标准差,在此基础上进行DMF模型残差分析。研究结果表明,DMF可以采用阻尼比对数值的三次多项式、周期对数值的四次多项式来模拟。由于规范设计反应谱并非针对某一特定地震 ...
Xinfeng Chen, Yanxu Jiang, Mingji Liu
doaj +1 more source
Abstract Space weather events pose a growing threat to modern economies, yet their macroeconomic consequences remain underexplored. This study presents the first dedicated economic assessment of geomagnetic storm impacts on Aotearoa New Zealand, quantifying potential gross domestic product (GDP) losses across seven conservative disruption and ...
Edward J. Oughton +4 more
wiley +1 more source
Development of machine learning-based site amplification models for Japan from borehole recordings
A large number of site amplification models have been developed using regression and machine learning (ML) approaches. Although ML models generally outperform traditional methods in predicting site amplification, the effects of specific site and motion ...
Le-Anh-Nhat Nguyen +3 more
doaj +1 more source
选取日本熊本MW7.0地震断层距小于200 km的82个近场KiK-net台站记录到的三分量记录数据进行基线校正后,获得近场地面运动水平向的峰值加速度PGA、峰值速度PGV及周期为0.2,1,2,3,5和10 s的加速度反应谱数据,并与美国NGA-West2的地震动预测模型相比较,研究熊本地震地表和井下地震动峰值及反应谱的衰减特征,通过比较KiK-net台站地表与井下记录结果,探讨浅层场地放大效应的影响。研究结果表明:① 对于井下观测结果,NGA-West2的地震动模型对PGA和短周期0.2 ...
Cheng Luo, Junju Xie, Zengping Wen
doaj +1 more source
We study source directivity and site effects of 2003 Tokachi-oki earthquake (Japan, M w ~ 8.3) and their influence on the distribution of peak ground accelerations (PGA) in the near-fault zones are studied.
Olga V. Pavlenko
doaj +1 more source
On the geometry of WDVV equations and their Hamiltonian formalism in arbitrary dimension
Abstract It is known that in low dimensions Witten–Dijkgraaf–Verlinde–Verlinde (WDVV) equations can be rewritten as commuting quasilinear bi‐Hamiltonian systems. We extend some of these results to arbitrary dimension N$N$ and arbitrary scalar product η$\eta$.
S. Opanasenko, R. Vitolo
wiley +1 more source
The 2021 MW 7.1 Fukushima‐ken Oki earthquake was the largest down‐dip compressional intraslab earthquake since August 2016, which is when S‐net records from the seafloor started to be provided.
Toshimi Satoh
doaj +1 more source
Dynamic mechanical loading of outer meniscus fibrochondrocytes increases extracellular vesicle (EV) yield and alters EV composition. When applied to progenitor cells, these mechanically primed EVs modulate the expression of matrix‐related genes.
Catherine Cheung +6 more
wiley +1 more source
Measuring stabilized heart rates in the prairie lizard, a small vertebrate ectotherm
Abstract The ability to accurately measure heart rates is vital for studying the ecological and evolutionary pressures on animals because cardiovascular regulation is associated with key physiological responses to environmental change. Heart rates, especially in ectotherms, are influenced by multiple factors over both the short and long term, including
Owen Conroy +4 more
wiley +1 more source

