Results 21 to 30 of about 109,816 (265)

The method of intelligent wireless sensor to improve the water permeability of permeable asphalt concrete pavement

open access: yesIET Networks, EarlyView., 2022
Abstract This research aims to study the intelligent wireless sensor to improve the water permeability of permeable asphalt concrete pavement. The water permeability of pavement is extremely important for the traffic environment. This study first briefly introduces the background and significance analysis, and then exemplifies the deployment algorithm ...
Xingmei Zhang, Cong Xu, Qi Lei
wiley   +1 more source

Robust design for underground metro systems with modular vehicles

open access: yesTunnelling and Underground Space Technology, 2023
Les demandes asymétriques des lignes de métro dans les mégapoles peuvent entraîner des temps d'attente élevés des passagers et une sous-utilisation substantielle de la capacité des véhicules. Le problème est difficile à résoudre en raison des incertitudes liées au flux de passagers et des retards aléatoires.
Mingyang Pei   +3 more
openaire   +1 more source

Reliability analysis of metro vehicles operating in Poland

open access: yesTransportation Research Procedia, 2019
Abstract Reliability of the metro vehicles is a key factor for providing of regular, safe and undisturbed passenger transport in the urban agglomerations. The research contains failure analyses of the two types of metro vehicles, and comparison of their reliability functions.
Rafał Melnik   +3 more
openaire   +1 more source

Finite Element Analysis of Metro Rail Clip Spring Bar Fracture under Short-wavelength Corrugation

open access: yesChengshi guidao jiaotong yanjiu
[Objective] To reduce the impact of rail clip spring bar failure on metro train operation safety, the effect of short-wavelength corrugation on the service performance of rail clip spring bars is investigated and improvement measures to mitigate the clip
GUAN Qinghua   +6 more
doaj   +1 more source

Flexibility coefficient calculation of rubber tyred metro and its applicability analysis

open access: yes机车电传动, 2023
The rubber tyred metro has three-series suspension systems and two sets of running systems, namely rubber wheels and steel wheels. The steel wheels, as safety wheels, only function in the event of tyre burst and turnout passing.
DU Zixue   +3 more
doaj  

Research on Vehicle Wheelset Wear Model Based on Measured Data

open access: yesChengshi guidao jiaotong yanjiu
Objective Based on the measured data of the train wheelsets on Shanghai Metro Line 17, the wheelset wear pattern is studied, and a wear model of wheel rim thickness and wheel diameter is established to improve the safety and maintenance efficiency of ...
DING Yaqi   +5 more
doaj   +1 more source

Research on Loading System of the Rail Vehicle Bogie Test Bed

open access: yesMATEC Web of Conferences, 2017
The bogie is one of the most important parts of metro vehicles, to provide traction, support and guidance of the vehicle in the process of the vehicle.
Lu Ning, Ren Li Na, Chen Zhong Wei
doaj   +1 more source

A Social Entrepreneurship Perspective of De‐Carbonising the Footprint through Recycling Compensation: A Case Study of the NGO Madre Coraje

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This research analyses the carbon footprint of the NGO Madre Coraje, using an integrated methodology that combines the calculator provided by REAS (Red de Economía Alternativa y Solidaria) Navarra and the Life Cycle Assessment (LCA). It quantifies emissions across the three scopes of the Greenhouse Gas Protocol, evaluating both direct and ...
José Fernandez‐Serrano   +2 more
wiley   +1 more source

Annual performance indicators of enforced driver behaviours in South Australia, 2007 [PDF]

open access: yes, 2009
This report was produced to quantify performance indicators for selected enforced driver behaviours (drink driving, drug driving, speeding and restraint use) in South Australia for the calendar year 2007. The level of random breath testing (RBT) in South
Baldock, M.   +2 more
core  

Nonsilting transport characteristics of coal slurry in a deep underground fluidization conveying pipeline under the action of a guide vane swirler

open access: yesDeep Underground Science and Engineering, EarlyView.
Aiming at the scientific frontiers of in situ fluidized mining of deep resources, a deep coal fluidized pipeline lifting system based on hydraulic conveying has been proposed. To solve the issue of particle sedimentation of large particles in horizontal connection sections, a solution involving the installation of guide vane‐type swirlers in the ...
Jiusheng Bao   +5 more
wiley   +1 more source

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