Results 21 to 30 of about 4,740,554 (399)

INTEGRATION Large-Scale Modeling Framework of Direct Cellular Vehicle-to-All (C-V2X) Applications

open access: yesSensors, 2021
The transportation system has evolved into a complex cyber-physical system with the introduction of wireless communication and the emergence of connected travelers and connected automated vehicles.
Mohamed M. G. Farag   +3 more
doaj   +1 more source

A new mesoscopic calculation model of chloride ion erosion in recycled coarse aggregate concrete (RAC): Characteristic fractal dimension of pore structure and service life prediction

open access: yesDevelopments in the Built Environment, 2023
This research investigates the influence of water-cement ratio and recycled aggregate content on the chlorine erosion resistance of RAC by conducting a combination of experimental and theoretical analysis.
Xu Hu   +5 more
doaj   +1 more source

Knowledge-Mapping Analysis of Urban Sustainable Transportation Using CiteSpace

open access: yesSustainability, 2023
With the accelerating process of global urbanization, environmental protection has become a hot issue for researchers, practitioners, and policy makers, with such questions as how to make urban transportation markedly sustainable to meet the pace of ...
Lehua Bi   +3 more
semanticscholar   +1 more source

An Empirical Analysis on Travel Characteristics of Feeder Trips Between Shared Electric Bicycles and Urban Rail Transit: A Case Study of Hohhot [PDF]

open access: yesE3S Web of Conferences
This study proposes a method for determining whether the purpose of cycling an electric bicycle is to transfer to a subway connection and then employs ArcGIS to set buffer zones of 250-meters radius and pick up the orders of connecting travel by judging ...
Li Chao   +4 more
doaj   +1 more source

A Novel Optimal Power Control for a City Transit Hybrid Bus Equipped with a Partitioned Hydrogen Fuel Cell Stack

open access: yesEnergies, 2020
The development of more sustainable and zero-emissions collective transport solutions could play a very important measure in the near future within smart city policies.
Gino D’Ovidio   +2 more
doaj   +1 more source

Deterioration characteristics of recycled aggregate concrete subjected to coupling effect with salt and frost

open access: yesReviews on Advanced Materials Science, 2022
In this study, the comprehensive performance and material properties of recycled aggregate concrete (RAC) under the coupled effect of salt-frost cycles were investigated to simulate the effect of complex environmental effects on the durability and ...
Yu Ying, Li Ben, Zhang Yu, Zhang Chen
doaj   +1 more source

Can Electricity Powered Vehicles Serve Traveler Needs?

open access: yesInternational Journal of Transportation Science and Technology, 2013
Electric vehicles (EV), Hybrid Electric Vehicles (HEV) or Plug-in Hybrid Electric Vehicles (PHEV) are believed to be a promising substitute for current gas-propelled vehicles.
Jianhe Du, Hesham Rakha, John Sangster
doaj   +1 more source

Research on modification of mechanical properties of recycled aggregate concrete by replacing sand with graphite tailings

open access: yesReviews on Advanced Materials Science, 2022
How to more effectively and comprehensively utilize recycled aggregate resources to prepare a richer new low-carbon concrete material system is the key path to achieve low-carbon development in China’s construction field. Based on the material properties
Zhang Chen   +5 more
doaj   +1 more source

Simulation, Optimization, and Machine Learning in Sustainable Transportation Systems: Models and Applications

open access: yesSustainability, 2021
The need for effective freight and human transportation systems has consistently increased during the last decades, mainly due to factors such as globalization, e-commerce activities, and mobility requirements.
R. de la Torre   +4 more
semanticscholar   +1 more source

A Repeated Game Freeway Lane Changing Model

open access: yesSensors, 2020
Lane changes are complex safety- and throughput-critical driver actions. Most lane-changing models deal with lane-changing maneuvers solely from the merging driver’s standpoint and thus ignore driver interaction.
Kyungwon Kang, Hesham A. Rakha
doaj   +1 more source

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