Results 301 to 310 of about 339,893 (364)
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Transportation Research Part A: Policy and Practice, 2019
Through rapid and large-scale transportation across regions, high-speed rail improves urban accessibility and decreases the space time distances between cities, greatly enhancing the spatial connection between cities along the route.
Feng Wang +4 more
semanticscholar +1 more source
Through rapid and large-scale transportation across regions, high-speed rail improves urban accessibility and decreases the space time distances between cities, greatly enhancing the spatial connection between cities along the route.
Feng Wang +4 more
semanticscholar +1 more source
Prediction of rail profile evolution on metro curved tracks: wear model and validation
International Journal of Rail transportation, 2022Rail side wear is typically encountered in metro lines (particularly on sharp curves). A reliable rail wear prediction model to evaluate the evolution of the rail profile should be developed.
Bingguang Wen +5 more
semanticscholar +1 more source
Rail safety and rail privatisation in Japan
Accident Analysis & Prevention, 2010Over the period from 1980 to the present, the economic status of the main line railway systems in many developed countries has changed, by privatisation or economic deregulation or both. The principal aims of such changes have been to improve the economic performance of the railways, and not to change the safety performance.
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Rail-to-Rail Dynamic Voltage Comparator Scalable Down to pW-Range Power and 0.15-V Supply
IEEE Transactions on Circuits and Systems - II - Express Briefs, 2021An ultra-low voltage, ultra-low power rail-to-rail dynamic voltage comparator solely based on digital standard cells is presented. Thanks to its digital nature, the comparator can be designed and integrated with fully-automated digital design flows and ...
O. Aiello +3 more
semanticscholar +1 more source
IEEE Journal of Solid-State Circuits, 1988
A CMOS op amp (operational amplifier) is reported which has a rail-to-rail voltage range at its input as well as its output. An area-efficient output stage has been used. While the entire op amp occupies only 600 mil/sup 2/, when used as a unity-gain buffer and with +or-5-V supplies, the op amp can drive a 9-V/sub pp//1-kHz sine wave across a 300 ...
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A CMOS op amp (operational amplifier) is reported which has a rail-to-rail voltage range at its input as well as its output. An area-efficient output stage has been used. While the entire op amp occupies only 600 mil/sup 2/, when used as a unity-gain buffer and with +or-5-V supplies, the op amp can drive a 9-V/sub pp//1-kHz sine wave across a 300 ...
openaire +1 more source
International Journal of Sustainable Transportation, 2021
Integration between bike sharing and rail transit provides users with a more flexible travel pattern in an effort to address the “first/last mile” problem.
Wendong Chen +3 more
semanticscholar +1 more source
Integration between bike sharing and rail transit provides users with a more flexible travel pattern in an effort to address the “first/last mile” problem.
Wendong Chen +3 more
semanticscholar +1 more source
Rail safety and rail privatisation in Britain
Accident Analysis & Prevention, 2007British Rail (BR), the former unified main line railway operator in Great Britain, was divided into about 100 separate organisations and privatised from April 1994. There was concern in the run-up to privatisation that the fragmentation of the system and the entry of new operators might compromise safety.
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, 2021
Rail corrugation, a widely distributed periodic wear pattern of the railway track, is a severe rail defect that could cause high-pitched noises and vibrations of the ground and nearby buildings. The current rail corrugation inspection trolley can only be
Yuhua Sun +9 more
semanticscholar +1 more source
Rail corrugation, a widely distributed periodic wear pattern of the railway track, is a severe rail defect that could cause high-pitched noises and vibrations of the ground and nearby buildings. The current rail corrugation inspection trolley can only be
Yuhua Sun +9 more
semanticscholar +1 more source
1995
The main goal of this work was to design an input stage which works rail-to-rail and have constant transconductance for the entire common mode range, and it was to be done without the necessity of matching p-and n-channel transistors. Two new circuits which possess these requirements were developed in the previous chapter; however, the effort will be ...
Satoshi Sakurai, Mohammed Ismail
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The main goal of this work was to design an input stage which works rail-to-rail and have constant transconductance for the entire common mode range, and it was to be done without the necessity of matching p-and n-channel transistors. Two new circuits which possess these requirements were developed in the previous chapter; however, the effort will be ...
Satoshi Sakurai, Mohammed Ismail
openaire +1 more source
RailSem19: A Dataset for Semantic Rail Scene Understanding
2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2019Solving tasks for autonomous road vehicles using computer vision is a dynamic and active research field. However, one aspect of autonomous transportation has received little contributions: the rail domain.
Oliver Zendel +5 more
semanticscholar +1 more source