Results 31 to 40 of about 40,753 (316)

Estimation of railway vehicle speed using ground vibration measurements [PDF]

, 2014
In railway noise and vibration assessment, the vehicle speed is a significant concern, since vehicle/track and track/soil interaction strongly affects the vibration magnitude.
Verlinden, Olivier, Forde, Mike, Kouroussis, Georges, Forde, Mike C, Connolly, David   +4 more
core  

Self‐Powered Bearing Sensing and Real‐Time Fault Diagnosis Enabled by Non‐Invasive Triboelectric Sensors and Edge AI Acceleration

Advanced Science, EarlyView.
This study achieves the synergistic integration of self‐powered sensing and edge AI acceleration to establish a real‐time fault diagnosis system. The proposed TENG‐based self‐powered bearing sensor (NSE‐TBS) and FPGA‐accelerated edge AI framework fundamentally break through the inherent limitations of conventional monitoring systems, including complex ...
Kehui Zhu, Zhongheng Liu, Xinming Li, Jinrui Zhang, Meng Li, Yiming Guo, Lihua Han, Yanxue Wang   +7 more
wiley   +1 more source

Research on dynamic stiffness match form of indirect fastener based on rail high-frequency wear characteristics

Scientific Reports
The stiffness combination of the dual-layer pads in indirect fastener systems significantly influences high-frequency wheel-rail wear behavior. However, the actual stiffness exhibits strong nonlinearity and non-uniformity due to the deformation of the ...
Xian Wang, Kai Wei, Qianhua Pu, Zelong Liu, Guodong Li, Ping Wang   +5 more
doaj   +1 more source

Study on the strain response characteristics of coal and rock borehole walls under high-pressure gas fracturing

Gong-kuang zidonghua
There has been a lack of precise methods for monitoring and evaluating the entire process of gas fracturing. However, strain monitoring can effectively record the real-time initiation and propagation of cracks. By studying the strain response of borehole
KONG Zixing, MA Yankun, YANG Fade, WANG Xiaoqi, GONG Liqiang, JIANG Mingfeng   +5 more
doaj   +1 more source

Improving the activity of waste concrete recycled powder by a mechanical-microwave combing method [PDF]

Railway Sciences
PurposeThe efficient utilization of recycled concrete powder (RCP) has attracted much attention. To break through the limitation of single activation technology of RCP, this study investigates the effects of a mechanical-microwave method on the ...
Henan Shi, Huajian Li, Liangshun Li, Haoliang Dong, Zhen Wang, Wenxiao Ji   +5 more
doaj   +1 more source

Assessment of railway vibrations using an efficient scoping model [PDF]

, 2014
Vibration assessments are required for new railroad lines to determine the effect of vibrations on local communities. Low accuracy assessments can significantly increase future project costs in the form of further detailed assessment or unexpected ...
Woodward, P. K., Verlinden, Olivier, Connolly, D. P., Connolly, D.P., Woodward, Peter, Kouroussis, Georges, Forde, M.C., Connolly, David, Forde, M. C., Forde, Michael, Giannopoulos, Antonios; id_orcid, Woodward, P.K., Giannopoulos, A, Forde, MC, Kouroussis, G., Verlinden, O, Giannopoulos, A., Verlinden, O., Woodward, PK, Connolly, DP, Kouroussis, G   +20 more
core   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

An Innovative and Efficient Method for Reverse Design of Wheel-Rail Profiles

Applied Sciences, 2018
Well-designed wheel-rail profiles are not only helpful in achieving expected dynamic vehicle performance but also in extending the service lives of wheels and rails.
Rong Chen, Chenyang Hu, Jingmang Xu, Ping Wang, Jiayin Chen, Yuan Gao   +5 more
doaj   +1 more source

Unpacking the Farmland Capitalization Effect of Ethanol Establishment

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT We unpack the impact of expansions in ethanol production—as measured by proximity to newly constructed ethanol plants and capacity expansions—on farmland values using land transaction data from Kansas in combination with modern causal inference techniques.
Gabriel S. Sampson, Jisang Yu
wiley   +1 more source

Analysis of Large-slope Metro Turnout Rail Creeping under Cycling Loads Action

Chengshi guidao jiaotong yanjiu
Objective When turnouts are laid on slope, the longitudinal force increase on the track due to the cyclic braking of trains will cause uneven rail creeping phenomena， resulting in a more complex stress and deformation pattern for the turnout, and even ...
WANG Tian, MA Qiantao, ZHENG Zhao-guang, YANG Jian, FANG Jiasheng, CHEN Rong, XU Jingmang   +6 more
doaj   +1 more source