Results 21 to 30 of about 2,688,094 (261)

Ground motion scenarios for the 1997 Colfiorito, central Italy, earthquake

open access: yesAnnals of Geophysics, 2008
In this paper we report the results of several investigations aimed at evaluating ground motion scenarios for the September 26th, 1997 Colfiorito earthquake (Mw 6.0, 09:40 UTC).
M. Cocco   +6 more
doaj   +1 more source

Analysis of earthquake response of bridges in Qinghai Maduo M7.4 earthquake

open access: yes地球与行星物理论评, 2022
On May 22, 2021, a M7.4 earthquake occurred in Maduo County, Qinghai Province, which caused the damage of The No.1 and No.2 Yematan bridges in Maduo County.
Zehong Mei   +4 more
doaj   +1 more source

Preliminary results of ground-motion characteristics

open access: yesAnnals of Geophysics, 2012
The preliminary results are presented herein for the engineering applications of the characteristics of the ground motion induced by the May 20, 2012, Emilia earthquake.
Francesca Bozzoni   +2 more
doaj   +1 more source

Seismic Hazard in Greece: A Comparative Study for the Region of East Macedonia and Thrace

open access: yesGeoHazards, 2023
Greece is located in one of the most seismically active regions in Europe. Many seismic hazard studies have been performed for various sites around Greece, at a regional or local scale.
Dimitris Sotiriadis   +3 more
doaj   +1 more source

Motion computation and visual orientation in flies [PDF]

open access: yes, 1993
Egelhaaf M, Borst A. Motion computation and visual orientation in flies. Comparative Biochemistry and Physiology, A: Comparative Physiology. 1993;104(4):659-673.Visual orientation greatly relies on the evaluation of the motion patterns received by the ...
Egelhaaf, M.   +3 more
core   +1 more source

旋转地震动记录特性与经验模型

open access: yesDizhen xuebao
随着平动-旋转联合观测技术不断发展,工程界逐步认识到旋转地震动是诱发结构扭转响应及破坏的重要因素,该类地震动也逐渐受到关注。本文基于美国南加利福尼亚州井下观测地震台阵和希腊凯法利尼亚岛地震台站获取的平动-旋转联合观测记录,构建了包含349条记录的六分量强震动数据集。通过信噪比分析确定各分量的最优滤波截止频率,并对比了平动与旋转地震动在截止频率、峰值参数以及反应谱峰值周期等方面的差异。结果表明:旋转记录的整体噪声水平显著高于平动记录;旋转记录的峰值角速度与峰值加速度在对数坐标下呈显著线性相关 ...
Xiaoyu Zhang   +3 more
doaj   +1 more source

A consideration of switching control based on priority of earthquake which is analyzed in observation area as far from an air type anti-vibration apparatus

open access: yesNihon Kikai Gakkai ronbunshu, 2014
This paper presents the control method for the continuous operation of air type anti-vibration apparatus under earthquake ground motion. Air type anti-vibration apparatus is essential for semiconductor exposure machine.
Takashi RONTE, Shinji WAKUI
doaj   +1 more source

Structural Design and Analysis for a Timber-Concrete Hybrid Building

open access: yesFrontiers in Materials, 2022
The benefits of using wood in tall and commercial construction are undisputed, namely reducing the carbon footprint, shortening construction times, and enhancing seismic and building physics performance.
Xiaoyue Zhang   +12 more
doaj   +1 more source

On the neuronal basis of figure-ground discrimination by relative motion in the visual system of the fly. 3: Possible input circuitries and behavioural significance of the FD-cells [PDF]

open access: yes, 1985
Egelhaaf M. On the neuronal basis of figure-ground discrimination by relative motion in the visual system of the fly. 3: Possible input circuitries and behavioural significance of the FD-cells. Biological Cybernetics.
Egelhaaf, M.   +1 more
core   +1 more source

High-Precision Localization Tracking and Motion State Estimation of Ground-Based Moving Target Utilizing Unmanned Aerial Vehicle High-Altitude Reconnaissance

open access: yesRemote Sensing
This paper focuses on the problem of ground-motion target localization tracking and motion state estimation for high-altitude reconnaissance using fixed-wing UAVs. Our goal is to accurately locate and track ground-moving targets and estimate their motion
Xuyang Zhou, Wei Jia, Ruofei He, Wei Sun
doaj   +1 more source

Home - About - Disclaimer - Privacy