Results 31 to 40 of about 1,774 (191)

Wireless Communication System of 5G Vehicle and Ground Fused by Public and Private Network

open access: yesGuangtongxin yanjiu, 2021
The 4th Generation Mobile Communication Technology (4G) Long Term Evolution (LTE) is restricted by the frequency band of 1 785~1 805 MHz private network in China.
Hui LI, Xin-bo ZHANG
doaj   +1 more source

Security Analysis for CBTC Systems under Attack–Defense Confrontation [PDF]

open access: yesElectronics, 2019
Communication-based train controls (CBTC) systems play a major role in urban rail transportation. As CBTC systems are no longer isolated from the outside world but use other networks to increase efficiency and improve productivity, they are exposed to huge cyber threats.
Wenhao Wu, Bing Bu
openaire   +1 more source

Comparison between TACS and CBTC System Degradation Impacts in Urban Rail Transit

open access: yesChengshi guidao jiaotong yanjiu
[Objective] To meet increasing urban rail transit capacity demands, traditional CBTC (communication-based train control) signaling systems-with ground-based interlocking as core architecture-are evolving toward TACS (train autonomous circumnavigation ...
WANG Chen   +4 more
doaj   +1 more source

Towards Safety-Risk Prediction of CBTC Systems With Deep Learning and Formal Methods

open access: yesIEEE Access, 2020
Communication-Based Train Control System (CBTC) system is an automated system for train control based on bidirectional train-ground communication. Safety-risk estimation is a vital approach that strives to guide the CBTC system to guarantee the safe ...
Jing Liu   +4 more
doaj   +1 more source

SELECTED ASPECTS OF THE SELECTION OF DATA SENT TO THE VEHICLE IN AUTOMATIC RAIL VEHICLE DRIVING SYSTEMS [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2019
Intensive pursuit in the introduction of automatic train driving systems, both with and without the driver in the cabin, can be observed around the world.
Jacek KUKULSKI   +4 more
doaj   +1 more source

Implementation of Train Interval Protection in Train Autonomous Circumambulate System

open access: yesKongzhi Yu Xinxi Jishu, 2022
Train interval protection is an important protective function to ensure the safe operation of trains. In the traditional communication-based train control (CBTC) system, line resources in the route are centrally managed through the fixed interlocking ...
QING Jianqiang   +3 more
doaj   +3 more sources

Research on Interstation Tracking Interval of CBTC System Based onTrain-train Communication

open access: yesKongzhi Yu Xinxi Jishu, 2020
CBTC system based on train-train communication not only reduces construction and maintenance costs by reducing deployment of some trackside equipments, but also reduces communication delay through direct train-train communication. In order to make better
ZHENG Yi   +5 more
doaj  

Ten Diverse Formal Models for a CBTC Automatic Train Supervision System [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
Communications-based Train Control (CBTC) systems are metro signalling platforms, which coordinate and protect the movements of trains within the tracks of a station, and between different stations. In CBTC platforms, a prominent role is played by the Automatic Train Supervision (ATS) system, which automatically dispatches and routes trains within the ...
Mazzanti F, Ferrari A
openaire   +4 more sources

A Novel Hierarchical Situation Awareness Model for CBTC Using SVD Entropy and GRU With PRD Algorithms

open access: yesIEEE Access, 2021
As a typical and special cyber-physical system, Communication-Based Train Control (CBTC) systems require a different security model from the traditional Information Technology(IT) systems.
Qichang Li, Bing Bu, Junyi Zhao
doaj   +1 more source

Regenerative Endodontic Procedure of a Mature Anterior Tooth With Open Apex and Chronic Apical Abscess: A Case Report With 4‐Years Follow‐Up

open access: yesClinical Case Reports, Volume 13, Issue 9, September 2025.
ABSTRACT This case report describes the successful treatment of a mature anterior tooth with an open apex and chronic apical abscess using a regenerative endodontic procedure. A 36‐year‐old man with a history of trauma to tooth 11 at age 10 presented with incomplete root development and an asymptomatic chronic apical abscess.
Murilo Priori Alcalde   +8 more
wiley   +1 more source

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