Results 31 to 40 of about 1,215,052 (269)

Vibration Response Analysis of Overhead System Regarding Train-Track-Bridge Dynamic Interaction

Applied Sciences, 2022
Based on the paucity of studies on the analysis of the coupled vibration response of the train-track-overhead System, in this article, finite element software ABAQUS was integrated with multi-body dynamics software, Universal Mechanism (UM), to construct
Xiangyan Fan, Laijun Liu, Xiaodan Wang, Jincheng Cao, Wenjie Cheng   +4 more
doaj   +1 more source

A Review of the Methods Calculating the Horizontal Displacement for Modular Reinforced Soil Retaining Walls

Applied Sciences, 2021
Most of the damage to reinforced retaining walls is caused by excessive deformation; however, there is no calculation method for deformation under static and dynamic loads in the design codes of reinforced soil retaining walls.
Xiaoguang Cai, Shaoqiu Zhang, Sihan Li, Honglu Xu, Xin Huang, Chen Zhu   +5 more
doaj   +1 more source

Excessive accelerations in bridges for Korea high-speed railway [PDF]

WIT Transactions on Modelling and Simulation, Vol 46, 2007
When the Korean high-speed train (KTX) runs over a high-speed railway bridge, the high-speed railway bridge gives quite a large acceleration response. Local vibration at the large cross section, the impact from equally spaced sleepers, the vibration due to elastomeric bearings, and the vibration from the train itself are the causes of this acceleration
J. W. Kwark, J. R. Cho, W. J. Chin, B. S. Kim, E. K. Cho   +4 more
openaire   +1 more source

Excessive mechanical strain accelerates intervertebral disc degeneration by disrupting intrinsic circadian rhythm [PDF]

Experimental & Molecular Medicine, 2021
AbstractNight shift workers with disordered rhythmic mechanical loading are more prone to intervertebral disc degeneration (IDD). Our results showed that circadian rhythm (CR) was dampened in degenerated and aged NP cells. Long-term environmental CR disruption promoted IDD in rats.
Sheng-Long Ding, Tai-Wei Zhang, Qi-Chen Zhang, Wang Ding, Ze-Fang Li, Guan-Jie Han, Jin-Song Bai, Xi-Lei Li, Jian Dong, Hui-Ren Wang, Li-Bo Jiang   +10 more
openaire   +2 more sources

Factors influencing the dynamic response of protective structures within heavy-duty vehicles in complex transportation conditions

Journal of Low Frequency Noise, Vibration and Active Control, 2023
This paper develops a simulated dynamics model focused on the vibration coupling between a heavy-duty vehicle and the protective structure of the payload and verifies it through field experiments, which monitor the dynamic response under complex driving ...
Yi Su, Jun Zou, Zhong Yi Li, Wei Lu
doaj   +1 more source

An Experimental Study of Reduced-Voltage Operation in Modern FPGAs for Neural Network Acceleration [PDF]

Dependable Systems and Networks, 2020
We empirically evaluate an undervolting technique, i.e., underscaling the circuit supply voltage below the nominal level, to improve the power-efficiency of Convolutional Neural Network (CNN) accelerators mapped to Field Programmable Gate Arrays (FPGAs).
Behzad Salami, Erhan Baturay Onural, I. Yuksel, Fahrettin Koc, Oğuz Ergin, A. Cristal, O. Unsal, H. Sarbazi-Azad, O. Mutlu   +8 more
semanticscholar   +1 more source

Chinese Actors in Africa: Strong or Smart? Analytical survey and review of monographic studies published in 2020 and 2019 on the activities of Chinese political, economic and cultural actors in Africa (Review) [PDF]

Ученые записки Института Африки Российской академии наук, 2020
The reviewed books examine the engagement of political, economic, and diplomatic actors of China in Africa. The studies jointly provide a broad picture of the current state of the multifaceted compound of China-Africa relations.
FITUNI Olga Leonidovna
doaj   +1 more source

Optimal Seismic Design of Stiffness and Gap of Hysteretic-Viscous Hybrid Damper System in Nonlinear Building Frames for Simultaneous Reduction of Interstory Drift and Acceleration

Frontiers in Built Environment, 2021
The viscous-hysteretic hybrid (HVH) damper system recently introduced by one of the authors has a clear property that, when the hysteretic dampers with gap mechanism become active (stiffness element starts working), the acceleration of building frames ...
Soichiro Ishida, Izuru Takewaki
doaj   +1 more source

Novel Gaussian Acceleration Profile for Smooth Jerk-Bounded Trajectories

IEEE Access, 2022
Industrial machines regularly work at their limits causing excessive long-term vibrations that deteriorate their movement, stability, and precision. In this sense, reference profiles are able to reduce the detrimental vibration effects by manipulating ...
G. Esau, R. Carlos, Mata Chavez Ruth Ivonne, Cabal-Yepez Eduardo, Lopez-Hernandez Juan Manuel, Palillero-Sandoval Omar   +5 more
semanticscholar   +1 more source

Joint motion planning of industrial robot based on hybrid polynomial interpolation

Xibei Gongye Daxue Xuebao, 2022
To plan an industrial robot's point-to-point joint motion that has velocity constraints, the cubic polynomial interpolation planning method has angular acceleration discontinuity.
PU Yasong, SHI Yaoyao, LIN Xiaojun, ZHANG Wenbin, CHEN Zhen   +4 more
doaj   +1 more source