Results 101 to 110 of about 264,692 (309)

甘肃积石山MS6.2地震强地震动特性分析

Dizhen xuebao
2023年12月18日甘肃积石山发生了MS6.2地震，本文基于中国数字强震动台网和地震预警网相关台站捕获到此次地震的强震动加速度记录，对地震动峰值空间分布特征、方向性效应、上下盘特性及反应谱特性进行了分析，结果表明：此次地震的强地震动空间分布主要受发震断层展布的控制；近断层附近，破裂方向效应明显；上下盘特性显著影响了强地震动等值线分布；相较于基岩场地，土层场地加速度反应谱在低频段显著放大。此外，此次地震震中的地震动强度已显著超越了现行抗震设计规范中罕遇、极罕遇地震水平。
Xueliang Duan, Jiahang Xu, Yanqiong Liu, Zhu Bian, Yi Han, Jiacong He, Cheng Peng, Long Zhang, Zhenghua Zhou   +8 more
doaj   +1 more source

Safety assessment of the seismic resistance of nuclear power plant technology

MATEC Web of Conferences, 2017
This paper gives the methodology to get the floor response spectra of the buildings on the base of the results of the probabilistic assessment. On the base of the geophysical and seismological monitoring of locality the peak ground acceleration and the ...
Králik Juraj
doaj   +1 more source

Clinical Spectrum and Outcomes of SOX1 Antibody‐Associated Paraneoplastic Neurological Syndromes: A Chinese Cohort Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background SOX1 antibody‐positive paraneoplastic neurological syndromes (PNS) exhibit significant population‐specific clinical heterogeneity. While Western cohorts predominantly manifest Lambert‐Eaton myasthenic syndrome (65%–80%), comprehensive clinical characterization and treatment response data in Asian populations remain critically ...
Jin‐Long Ye, Zu‐Ying Kuang, Bo Li, Meng‐Qiu Pan, Li‐Hua Zhou, Yang‐Yang Dai, Si‐Fen Xie, Xian‐Guang Lin, Ye‐Peng Hu, Li‐Hong Jiang, Zhan‐Hang Wang, Wei‐Jing Zhang   +11 more
wiley   +1 more source

Nonstationary Stochastic Simulation of Strong Ground-Motion Time Histories : Application to the Japanese Database [PDF]

, 2012
For earthquake-resistant design, engineering seismologists employ time-history analysis for nonlinear simulations. The nonstationary stochastic method previously developed by Pousse et al. (2006) has been updated.
Bonilla, Luis Fabian, Cotton, Fabrice, Laurendeau, Aurore   +2 more
core   +2 more sources

First analysis of GLE 72 event on 10 September 2017: Spectral and anisotropy characteristics

, 2018
Using neutron monitor and space-borne data we performed an analysis of the second ground level enhancement of solar cycle 24, namely the event of 10 September 2017 (GLE 72) and derive the spectral and angular characteristics of GLE particles.
Kocharov, L. G., Mishev, A. L., Paassilta, M., Raukunen, O., Usoskin, I. G., Vainio, R., Valtonen, E.   +6 more
core   +1 more source

Optimization of force-limiting seismic devices connecting structural subsystems [PDF]

, 2016
This paper is focused on the optimum design of an original force-limiting floor anchorage system for the seismic protection of reinforced concrete (RC) dual wall-frame buildings.
Fleischman, Robert B., Marano, Giuseppe C., Monti, Giorgio, Quaranta, Giuseppe, Scodeggio, Alessandro   +4 more
core   +1 more source

Meningovascular Inflammation in Cerebral Amyloid Angiopathy‐Related Cortical Superficial Siderosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT The role of inflammation in cortical superficial siderosis (cSS), a marker of cerebral amyloid angiopathy (CAA) linked to high hemorrhage risk, is unclear. We examined 15 patients with cSS using 3 T post‐contrast vessel wall MRI (VWI) and CSF analysis.
Philipp Arndt, Eya Khadhraoui, Sebastian J. Müller, Katja Neumann, Hendrik Mattern, Sven G. Meuth, Valentina Perosa, Andreas Charidimou, Stefanie Schreiber   +8 more
wiley   +1 more source

An Improved Adaptive Genetic Algorithm for Optimizing Pyroshock Acceleration Synthesis

IEEE Access, 2019
The shock response spectrum (SRS) applied to pyroshock designs and tests for space systems does not include input acceleration time history; therefore, it cannot be used directly in structural nonlinear dynamic analysis before acceleration time history ...
Wenjuan Sun, Yingqing Huang, Haibo Chen
doaj   +1 more source

Functional and Structural Evidence of Neurofluid Circuit Aberrations in Huntington Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Disrupted neurofluid regulation may contribute to neurodegeneration in Huntington disease (HD). Because neurofluid pathways influence waste clearance, inflammation, and the distribution of central nervous system (CNS)–delivered therapeutics, understanding their dysfunction is increasingly important as targeted treatments emerge.
Kilian Hett, Abigail Dubois, Melanie Leguizamon, Alexander Song, Paula Trujillo, Colin D. McKnight, Ciaran M. Considine, Manus J. Donahue, Daniel O. Claassen   +8 more
wiley   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source