Results 51 to 60 of about 238 (131)

Comparative analysis of finite‐difference and split‐step based parabolic equation methods for tunnel propagation modelling

open access: yesIET Microwaves, Antennas &Propagation, Volume 18, Issue 2, Page 59-72, February 2024.
In this study, a systematic analysis of the error and computational complexity of the FDPE and SSPE methods for radio wave propagation modelling in tunnels is provided. Guidelines for the choice of their parameters are provided, and their performance is demonstrated through both numerical examples and experimental measurements in actual tunnel cases ...
Hao Qin, Xingqi Zhang
wiley   +1 more source

Research on the Design of Local Workstation Integration for CBTC System

open access: yesKongzhi Yu Xinxi Jishu, 2021
In the communication based train control system (CBTC) signaling system architecture, CI operation control and automatic train supervision(ATS) local workstation are two independent operating terminals playing different roles.
WANG Min, CHENG Huanqing, ZHANG Yanqiu
doaj  

Strategy for Selecting Signaling System Types for Suburban Railways

open access: yesChengshi guidao jiaotong yanjiu
ObjectiveThe mainstream signaling systems for suburban railways are CTCS2+ATO (Chinese train control system level 2 + automatic train operation) and CBTC (communication-based train control).
Lin CHEN, Rui SONG, Ning DANG, Yifan QIU
doaj   +1 more source

Movement Authorization for Train Control Systems Based on Cellular Automata

open access: yesChengshi guidao jiaotong yanjiu
[Objective] With the high-speed development of urban rail transit, the drastic increase of passenger volume puts forward higher requirements on the train departure interval.
RAN Mengqiang, TENG Changmin
doaj   +1 more source

Research on Train Autonomous Circumambulation System

open access: yesKongzhi Yu Xinxi Jishu, 2021
This paper analyzes the disadvantages of traditional CBTC system in China’s urban rail transit, introduces the system architecture, principle and typical core functions of TACS (train autonomous circumambulation system), and gives a detailed comparison ...
QING Jianqiang, LEI Chengjian, LIANG Bo
doaj  

Visible Light Communication Metro Train Positioning Method Based on KNN Algorithm and RSS Fingerprint Characteristics

open access: yesChengshi guidao jiaotong yanjiu
ObjectiveTo improve the reliability of visible light communication-based metro train positioning technology in narrow and enclosed metro tunnel scenarios and make up for the deficiencies of existing train positioning methods, it is necessary to study the
Hongwei LI   +3 more
doaj   +1 more source

Chondroitinase ABC in spinal cord injury: advances in delivery strategies and therapeutic synergies

open access: yesFrontiers in Bioengineering and Biotechnology
Spinal cord injury (SCI) is a debilitating condition that leads to permanent neurological deficits due to the formation of a glial scar and the accumulation of chondroitin sulfate proteoglycans (CSPGs), which inhibit axonal regeneration.
Rachel Santana Cunha   +13 more
doaj   +1 more source

Efficient driving of CBTC ATO operated trains

open access: yes, 2017
Programa de Doctorado Erasmus Mundus en Tecnologías y Estrategias Energéticas Sostenibles / Erasmus Mundus Joint Doctorate in Sustainable Energy Technologies and ...
openaire   +6 more sources

Grid Continuous Positioning Technology for Urban Rail Transit CBTC Wireless Environment Monitoring System Based on Inertial Navigation

open access: yesChengshi guidao jiaotong yanjiu
Objective The current secondary positioning system of urban rail transit train beacons has a positioning accuracy of 300 meters, failing to meet the high-precision positioning requirements of wireless environment monitoring grid.
LI Hongyu, ZHU Jun, WANG Lizhou, WU Jie
doaj   +1 more source

Real-time Fault Locating Method for Urban Rail Transit CBTC System

open access: yesChengshi guidao jiaotong yanjiu
[Objective] To carry out rapid fault diagnosis and locating for urban rail transit CBTC (communication-based train control) system, a real-time fault monitoring and locating method based on time constraints is proposed, focusing on system network ...
Guangzheng BAI   +5 more
doaj   +1 more source

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