Results 81 to 90 of about 216,906 (258)

Fatigue analysis of catenary contact wires for high speed trains [PDF]

, 2011
The fatigue fracture is one of the most critical failures which may occur on the high speed network because it is undetectable and it has a huge impact on traffic disruption.
BALMES, Etienne, MAITOURNAM, Habibou, MASSAT, Jean-Pierre, NGUYEN TAJAN, T.M.L.   +3 more
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Shaking table test on damage mechanism of bedrock and overburden layer slope based on the time–frequency analysis method

Scientific Reports
To systematically analyze the damage caused by bedrock and overburden layer slope under seismic action, a set of large-scale shaking table test was designed and completed.
Changwei Yang, Guangpeng Chen, Mao Yue, Xianqing Xu, Ke Su, Zhuqing Li   +5 more
doaj   +1 more source

THE HIGH-SPEED RAIL DEVELOPMENT IN THE NORTHEAST MEGAREGION OF THE UNITED STATES: A CONCEPTUAL ANALYSIS [PDF]

This paper examines the high-speed rail (HSR) development issues in the Northeast Megaregion of the United States (U.S.). Due to chronic underinvestment and a myriad of other factors, the only operational HSR in the U.S., i.e., Amtrak’s Acela Express, is
Xueming CHEN
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Shinkansen investment before and after JNR reform [PDF]

, 2013
Shinkansen' refers to Japan’s dedicated high-speed intercity rail system, and it was initially introduced between Tokyo and Shin-Osaka in 1964 prior to other countries. This event accelerated the development of high-speed railways in other countries.
Kurosaki, Fumio
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Switch Rail Reduction Value Deviation’s Impact on Wheel–Rail Dynamic Interaction and Its Efficient Identification Method: A Numerical and Experimental Study

Applied Sciences
Railway turnout is a critical railway infrastructure that guides trains in switching tracks. Over time, uneven rail wear can lead to switch rail reduction value (SRRV) deviation, a typical structural defect that compromises turnout functionality and ...
Pu Wang, Qiantao Ma, Ji Liu, Jingmang Xu
doaj   +1 more source

High speed train communications systems using free space optics [PDF]

, 2010
In this work, we propose a broad-band free space optical (FSO) wireless communications system for high-speed trains. The system consists of optical transceivers positioned outside the train and along the railway track.
Ghassemlooy, Zabih, Iaz, M., Le Minh, Hoa, Paudel, Rupak, Rajbhandari, Sujan   +4 more
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The Seismic Response of High-Speed Railway Bridges Subjected to Near-Fault Forward Directivity Ground Motions Using a Vehicle-Track-Bridge Element

Shock and Vibration, 2014
Based on the Next Generation Attenuation (NGA) project ground motion library, the finite element model of the high-speed railway vehicle-bridge system is established.
Chen Ling-kun, Jiang Li-zhong, Guo Wei, Liu Wen-shuo, Zeng Zhi-ping, Chen Ge-wei   +5 more
doaj   +1 more source

Models for Lateral Dynamic Interaction of High-Speed Trains and Bridges [PDF]

, 2011
In this work a methodology for analysing the lateral coupled behavior of large viaducts and high-speed trains is proposed. The finite element method is used for the structure, multibody techniques are applied for vehicles and the interaction between them ...
Antolin Sanchez, Pablo, Astiz Suárez, Miguel Angel, Goicolea Ruigómez, José María, Oliva Quecedo, Javier   +3 more
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Mechanical properties analysis of the interspersed replacement of timber sleepers with bamboo-based composite sleepers on open bridge deck

Scientific Reports
Due to the discrete deterioration characteristics of timber sleepers on open bridge deck, continuous replacement is difficult. New bamboo-based composite sleepers (BCSs) offer excellent performance at a low price, making them an ideal alternative to ...
Peng Chen, Tiexu Liu, Wang Xu, Jiajun Huang, Chenghui Li   +4 more
doaj   +1 more source

Enhancing LoRA Model Serving Capacity via Adaptive Operator Scheduling for Multi-Tenancy on GPU

IEEE Access
Low-Rank Adaptation (LoRA) has garnered increasing attention for effectively fine-tuning large language models (LLMs) with limited resources. Nonetheless, conventional approaches that cater to multiple LoRA models independently lead to redundant ...
Lingnan Xia, Hua Ma
doaj   +1 more source