Articles with "speed profile" as a keyword



Energy‐efficient approach combining train speed profile and timetable optimisations for metro operations

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Published in 2020 at "Iet Intelligent Transport Systems"

DOI: 10.1049/iet-its.2020.0346

Abstract: Rising energy cost and environment-friendly awareness make energy conservation a key issue for metro operation. Reducing traction energy consumption and improving the utilisation of regenerative braking energy are two efficient solutions to conserve energy. Two… read more here.

Keywords: speed; energy efficient; approach; energy ... See more keywords

Anomalous behavior in entanglement speed profile through spin chains.

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Published in 2024 at "Physical review. E"

DOI: 10.1103/physreve.109.044107

Abstract: The origin of the uniform Dzyaloshinskii-Moriya interaction (DMI), which is responsible for the creation of chiral magnetism, has been the subject of extensive research. Recently, modern technology has allowed for its production and utilization in… read more here.

Keywords: spin chains; behavior entanglement; entanglement; speed ... See more keywords

Unified Underwater Acoustic Localization and Sound Speed Estimation for an Isogradient Sound Speed Profile

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Published in 2024 at "IEEE Sensors Journal"

DOI: 10.1109/jsen.2023.3341459

Abstract: This article introduces an iterative technique aimed at jointly estimating target location and sound propagation speed in a 3-D underwater environment characterized by an isogradient sound speed profile (SSP). The developed algorithm is based on… read more here.

Keywords: isogradient sound; sound speed; speed; speed profile ... See more keywords

Novel Electric Bus Energy Consumption Model Based on Probabilistic Synthetic Speed Profile Integrated With HVAC

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Published in 2021 at "IEEE Transactions on Intelligent Transportation Systems"

DOI: 10.1109/tits.2020.2971686

Abstract: This paper proposes a novel and generic model to calculate the Electric Bus Energy Consumption (EBEC) without the need for a high–resolution speed profile data. The proposed model generates a set of speed profiles using… read more here.

Keywords: speed; model; electric bus; speed profile ... See more keywords

Optimized Calculation of the Economic Speed Profile for Slope Driving: Based on Iterative Dynamic Programming

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Published in 2022 at "IEEE Transactions on Intelligent Transportation Systems"

DOI: 10.1109/tits.2020.3035610

Abstract: In order to improve eco-driving performance, a speed profile for a vehicle has been investigated. For its great effect on fuel economy, an economic speed planning method based on iterative dynamic programming (IDP) with a… read more here.

Keywords: dynamic programming; speed; speed profile; based iterative ... See more keywords

Sound speed profile measurement uncertainties due to rough interfaces: A parametric study using the Langston-Kirchhoff model

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Published in 2017 at "Journal of the Acoustical Society of America"

DOI: 10.1121/1.4988100

Abstract: In the context of sound-speed profile measurement by the image source method, interface roughnesses are responsible for result uncertainties. The image source method models the reflected wave from a layered media as a collection of… read more here.

Keywords: langston kirchhoff; speed profile; profile measurement; using langston ... See more keywords

Upwelling-driven variation of sound speed profile in a Brazilian bay monitored by a coastal acquisition system.

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Published in 2024 at "Anais da Academia Brasileira de Ciencias"

DOI: 10.1590/0001-3765202420230846

Abstract: Sound speed profiles in the ocean are determined by seawater properties, where horizontal variability of thermal stratification modulates sonar detection distance. This work assesses the impacts of upwelling dynamics on sound speed profile in enclosed… read more here.

Keywords: acquisition system; speed profile; speed; sound speed ... See more keywords

An estimation method of sound speed profile based on grouped dilated convolution informer model

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Published in 2025 at "Frontiers in Marine Science"

DOI: 10.3389/fmars.2025.1484098

Abstract: The accurate determination of the ocean sound speed profile (SSP) is essential for oceanographic research and marine engineering. Traditional methods for acquiring SSP data are often time-consuming and costly. Machine learning techniques provide a more… read more here.

Keywords: sound speed; convolution; speed profile; informer ... See more keywords
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Energy-Efficient Speed Profile Optimization and Sliding Mode Speed Tracking for Metros

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Published in 2020 at "Energies"

DOI: 10.3390/en13226093

Abstract: Nowadays, most metro vehicles are equipped with an automatic train operation (ATO) system, and the speed control method, combining cruise speed planning and proportional-integral-derivative (PID) control, is widely used. The automation is achieved, and the… read more here.

Keywords: sliding mode; energy; speed profile; speed ... See more keywords