Results 21 to 30 of about 118,485 (322)

Research progress of baseline correction for near-field strong motion accelerogram

open access: yes地球与行星物理论评, 2022
The baseline drift is often found in strong motion accelerograms, especially in the near-field accelerogram. The small baseline drift in accelerogram will lead to linear drift in the velocity time history obtained through single integration and parabolic
Bin Zhang, Yanxiang Yu
doaj   +1 more source

Near-Earth substorm features from multiple satellite observations [PDF]

open access: yes, 2008
We investigate a substorm on 3 October 2004 during which 11 satellites were located in near-Earth magnetotail (XGSM > −10 RE). Double Star 1 (TC-1), Cluster, and LANL-97 satellites were closely aligned in the dawn-dusk direction (
A. T. Y. Lui (7591487)   +53 more
core   +1 more source

Dimensional response analysis of bilinear systems subjected to non-pulselike earthquake ground motions [PDF]

open access: yes, 2011
The maximum inelastic response of bilinear single-degree-of-freedom systems when subjected to ground motions without distinguishable pulses is revisited with dimensional analysis by identifying time scales and length scales in the time histories of ...
Karavasilis, Theodore L.   +8 more
core   +1 more source

Seismic Response Analysis of a Curved Bridge under Near-Fault and Far-Field Ground Motions

open access: yesApplied Sciences, 2022
To study the influence of near-fault and far-field (FF) ground motions on a curved girder bridge, a 1:10 scale curved bridge shaking table test model was constructed. Three types of ground motions, namely, near-fault pulse (NP), near-fault non-pulse (NN),
Peng Su   +4 more
doaj   +1 more source

Near-fault broadband ground-motion simulation of 2021 Yangbi M6.4 earthquake: an improved FK method

open access: yesYantu gongcheng xuebao, 2023
Extending the physics-based ground-motion simulation from the existing 1~2 Hz resolution to the higher frequency of 5~10 Hz, which is sensitive to the engineering structure, is a critical development direction of near-fault ground-motion simulation in ...
BA Zhenning 1, 2, LIU Yue 1, 2, ZHAO Jingxuan 1, 2, ZHANG Yushan 3, LIANG Jianwen 1, 2
doaj   +1 more source

Variability of Near-Field Ground Motion from Dynamic Earthquake Rupture Simulations [PDF]

open access: yes, 2008
This study investigates near-field ground-motion variability due to dynamic rupture models with heterogeneity in the initial shear stress. Ground velocity seismograms are synthesized by convolving the time histories of slip velocity obtained from ...
J. Ripperger, P. M. Mai, J. Ampuero
semanticscholar   +2 more sources

Interplanetary magnetic field rotations followed from L1 to the ground : the response of the Earth's magnetosphere as seen by multi-spacecraft and ground-based observations [PDF]

open access: yes, 2011
A study of the interaction of solar wind magnetic field rotations with the Earth's magnetosphere is performed. For this event there is, for the first time, a full coverage over the dayside magnetosphere with multiple (multi)spacecraft missions from dawn ...
Escoubet, P.   +63 more
core   +1 more source

The Effect of Ground Motion Selection Methods for Seismic Design of Tall Buildings: A Case Study of Mandalay City

open access: yesWalailak Journal of Science and Technology, 2020
The near-fault earthquakes ground motion usually observed a few kilometers away from the active faults generally contains high energetic velocity pulses as a consequence of directivity effects.
Yan Naung KO, Teraphan ORNTHAMMARATH
doaj   +3 more sources

Numerical Study of the Liquefiable Sand–Pile Behavior Under the Effect of Near-field Ground Motions [PDF]

open access: yesمهندسی عمران شریف
Three-dimensional analyses are conducted to study the effects of ground motion and the presence of velocity pulse on the pile responses in liquefiable soils. Liquefaction of soils is an important issue in geotechnical engineering.
S. Abbasi karafshani   +1 more
doaj   +3 more sources

Coordinated studies of the geospace environment using cluster, satellite and ground-based data: An interim review [PDF]

open access: yes, 2005
A little more than four years after its launch, the first magnetospheric, multi-satellite mission Cluster has already tremendously contributed to our understanding about the coupled solar wind - magnetosphere - ionosphere system.
Donovan, E. F.   +28 more
core   +1 more source

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