Results 51 to 60 of about 3,051 (248)

Research on Flywheel Energy Storage Device of Regenerative Brake for Metro Vehicles

open access: yes机车电传动, 2019
Due to the operation characteristics of short distance between stations, start acceleration and brake deceleration frequently and the huge energy generated by regenerative braking for the metro vehicles can be absorbed and stored by flywheel energy ...
Zhikun YOU, Qun ZHOU, Wei WANG
doaj  

Experimental and design‐oriented research on fiber reinforced concrete segmental tunnel linings: A systematic review

open access: yesStructural Concrete, EarlyView.
Abstract The use of fiber reinforced concrete (FRC) in precast tunnel segments is among the most established and representative applications of this material. Over the past two decades, numerous tunnel linings were constructed with partial or total substitution of conventional steel reinforcement by fibers, this yielding to quantifiable benefits in ...
Vladimir Rusanov   +4 more
wiley   +1 more source

Looking for Trouble: Pre‐Intervention Monitoring in Human and AI Driver Training

open access: yesSymbolic Interaction, EarlyView.
We compare two types of situations involving monitoring of car driving: a driving instructor overseeing a trainee driver and a safety driver overseeing the performance of autonomous vehicle (AV) software. Our focus is on instances of monitoring that precede (1) interventions that are aborted before impacting the driving and (2) actual interventions on ...
Mathias Broth   +2 more
wiley   +1 more source

Design and Simulation of Traction and Regenerative Braking Performance of Chongqing Metro Line 6 Vehicles

open access: yes机车电传动, 2012
Basic parameters and performance requirements were briefed for the electric drive system of Chongqing metro line 6 vehicles, and the design, calculation and line simulation of traction and regenerative braking performance of the system were expounded ...
LI Wei   +3 more
doaj  

‘Using anuran community diversity and Pseudacris crucifer to predict landscape quality across a land use gradient'

open access: yesWildlife Biology, EarlyView.
As human‐modified landscape and climate changes proliferate, maintaining biodiversity and understanding the function and quality of available habitat is imperative. As anurans (frogs/toads) such as Pseudacris crucifer, can be an indicator species of habitat quality and ecosystem productivity, studying the anuran community in a mixed‐land use region ...
Brian C. Kron, Karen V. Root
wiley   +1 more source

Analysis of Train Bus Circuit Topology for Vehicles with Third Rail Power Supply

open access: yes机车电传动, 2013
Great sense to set a train bus circuit for metro vehicles was expounded, and bus circuit design methods of demostic three-rail metro vehicle projects was proposed. Through analysis of bus circuits, a design scheme of the third rail voltage was presented.
LIN Hao, CHEN Yong-yi, CAO Jun
doaj  

Pickin' up good vibrations: a systematic review of footfall detection and analysis in the realm of wildlife surveying

open access: yesWildlife Biology, EarlyView.
Exploration of new wildlife surveying methodologies that leverage advances in sensor technology and machine learning has led to tentative research into the application of seismology techniques. This, most commonly, involves the deployment of a footfall trap – a seismic sensor and data logger customised for wildlife footfall.
Benjamin J. Blackledge   +4 more
wiley   +1 more source

Traction Calculation and Simulation Analysis for Nanchang Metro Line 1 Vehicles

open access: yes机车电传动, 2016
Base situation of Nanchang metro line 1 vehicles was introduced. The vehicle dynamic performance and the traction & braking characteristics were calculated and simulated, as well as the rescue capability and power consumption.
XIONG Jun
doaj  

Pressure Wave Control Scheme for Metro Vehicle at Speed of 120 km/h

open access: yesChengshi guidao jiaotong yanjiu
Objective With the increasing demand for passenger comfort in urban rail transit, pressure wave control inside metro trains at speed of 120 km/h and above has become a an essential function of train air-conditioning system.
FENG Xuwei   +3 more
doaj   +1 more source

Optimization of Bus Bridging Service under Unexpected Metro Disruptions with Dynamic Passenger Flows

open access: yesJournal of Advanced Transportation, 2019
A metro disruption is a situation where metro service is suspended for some time due to unexpected events such as equipment failure and extreme weather. Metro disruptions reduce the level of service of metro systems and leave numerous passengers stranded
Jiadong Wang, Zhenzhou Yuan, Yonghao Yin
doaj   +1 more source

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