Results 11 to 20 of about 40,447 (267)

Influence of Asymmetric Rail Cant on Rail Corrugation in Metro Small-radius Curve Sections

open access: yesChengshi guidao jiaotong yanjiu
[Objective] A reasonable rail cant can improve the wheel-rail matching relationship, effectively reduce wheel-rail contact pressure and mitigate wheel-rail wear.
SUN Ping   +4 more
doaj   +1 more source

Spatiotemporal Correlation Between Railway Transport Development and Land Use

open access: yesRomanian Journal of Transport Infrastructure, 2021
Rail transport developments seem to offer tremendous benefits to land use and spatial development. As the development of rail lines induces land use growth and development.
Oluwakoya Adeniyi Olufemi   +1 more
doaj   +1 more source

Study on the Factors Affecting the Wheel–Rail Lateral Impact of the Forepart of the Curved Switch Rail

open access: yesMachines, 2022
In the switch rail section of a high-speed turnout, the wheel–rail lateral impact of the forepart of the curved switch rail is the most important factor affecting the passing performance.
Bo Liao, Yanyun Luo
doaj   +1 more source

ANALYSIS OF DEVELOPMENT CHARACTERISTICS OF RAIL WEAR DISTRIBUTION OF SMALL RADIUS CURVE SECTION IN METRO

open access: yesJixie qiangdu, 2020
Based on vehicle-track coupled dynamics and Archard wear models,the influence of different axle loads,friction coefficients and running speeds on the rail wear characteristics of small radius curve section in metro were analyzed and discussed.The results
LEI ZhenYu, WANG ZhiQiang
doaj  

Design of a low-voltage constant transconductance rail-to-rail CMOS operational amplifier

open access: yesDianzi Jishu Yingyong, 2020
This paper presents a rail-to-rail constant transconductance operational amplifier input stage. The proposed circuit changes the tail current of the input differential pairs dynamically for a constant-gm by using dummy input differential pairs.
Gao Yuhong, Li Junlong
doaj   +1 more source

Dynamic Response of Wheel-Rail Interaction at Rail Weld in High-Speed Railway

open access: yesShock and Vibration, 2017
As a main part of continuously welded rail track, rail weld widely exists in high-speed railway. However, short-wave irregularities can easily initiate and develop in rail weld due to the limitation of welding technology and thus rail weld has been a ...
Boyang An   +4 more
doaj   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

open access: yesAdvanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco   +8 more
wiley   +1 more source

Analytic Method for Vibration Analysis of Track Structure Induced by High-Speed Train

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021
Nowadays, the increase in heavy freight rail transport and high-speed train (HST) operations has encouraged scientists to investigate the dynamic response of rail structures under moving load using analytically and numerically computational methods.
Mehmet Akif Koç
doaj   +1 more source

Versatile Pneumatic Twisted Coiled Actuators Enabled by Fiber‐Polymer Composite Fabrication

open access: yesAdvanced Functional Materials, EarlyView.
This work reports composite Pneumatic Twisted Coiled Actuators with embedded Kevlar fibers that convert pneumatic or hydraulic pressure into powerful linear motion. A novel precise manufacturing technique is used to systematically explore how design variables influence actuator mechanics and dynamics.
William J. Townsend   +5 more
wiley   +1 more source

Research on dynamic characteristics of shoegear-conductor rail system considering conductor rail joint gap

open access: yes机车电传动, 2023
In urban rail transit, in addition to overhead catenary system, the electric shoegear-conductor rail system is often used for energy supply of trains. In the shoegear-conductor rail system, the electric shoegear slides along the conductor rail, and the ...
YU Wenbin
doaj  

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