Results 1 to 10 of about 392,436 (266)

An Improved Arc Fault Location Method of DC Distribution System Based on EMD-SVD Decomposition

open access: yesApplied Sciences, 2023
The influence of the control strategy of the power electronic converter obscures the fault characteristics of DC distribution networks. The existence of arc faults over an extended period of time poses a grave threat to the security of power grids and ...
Liuming Jing   +3 more
doaj   +1 more source

An Improved Power-Sharing Method for a Multi-Terminal HVDC Transmission System Based on Adaptive Voltage Droop Control

open access: yesEnergies, 2023
The prerequisite for the normal operation of a flexible high-voltage direct current (HVDC) transmission system is the maintenance of the stability of the direct current (DC)-side voltage, and droop control has a good dynamic regulation capability.
Liuming Jing   +4 more
doaj   +1 more source

An Improved High-Resistance Fault Detection Method in DC Microgrid Based on Orthogonal Wavelet Decomposition

open access: yesApplied Sciences, 2022
High-resistance faults in direct current (DC) microgrids are small and thus difficult to detect. Such faults may be “invisible” in that grid operation continues for a considerable time, which damages the grid.
Liuming Jing   +3 more
doaj   +1 more source

Driver-to-Driver Communication on the Highway: What Drivers Want [PDF]

open access: yes, 2014
Drivers need to coordinate with each other to share the road infrastructure. The social relationship between drivers also influences the driving behavior. With everywhere available connectivity and the broad penetration of social network services, the relationship between drivers on the road may gain more transparency, enabling social information to ...
Chao Wang 0055   +3 more
openaire   +2 more sources

A Comparison of Truck Driver Pre-Employment Hair and Urine Drug Test Efficacy

open access: yesLogistics, 2023
Background: To help ensure roadway safety, the federal government mandates trucking companies to conduct pre-employment urine drug tests before allowing drivers to operate a commercial motor vehicle.
Ming Li   +2 more
doaj   +1 more source

Driving Hazard Perception tests: A Systematic Review [PDF]

open access: yesBulletin of Emergency and Trauma, 2023
Objective: The present study was conducted to evaluate previous studies on hazard perception among road users.Methods: A comprehensive search was conducted using electronic databases and search engines includingScience Direct, PubMed, Scopus, Embase, Web
Yasaman Habibzadeh omran   +3 more
doaj   +1 more source

Mathematical model of two parallel synchronous motors supplied from current type frequency converter

open access: yesCommunications, 1999
The contribution describes the mathematical model of electrical drive composed of two parallel synchronous motors. Besides the equations there is mentioned block scheme in MATLAB and simulation results of the starting of two synchronous motors supplied ...
Byambaa Sergelen   +2 more
doaj   +1 more source

Estimating illegal fishing from enforcement officers

open access: yesScientific Reports, 2020
While illegal, unreported, and unregulated (IUU) fishing is a premier issue facing ocean sustainability, characterizing it is challenging due to its clandestine nature. Current approaches can be resource intensive and sometimes controversial. Using Chile
C. Josh Donlan   +3 more
doaj   +1 more source

GAME THEORY APPLICATION ON ONLINE TRANSPORTATION COMPANY AND DRIVER INCOME LEVELS DURING THE PANDEMIC

open access: yesBarekeng, 2022
Online motorcycle taxi drivers are a group of people who are economically affected by the Covid-19 pandemic. This study aimed to provide a balanced choice strategy for drivers and companies. Game theory was applied to conflict of interest situations as a
Marlina Setia Sinaga   +3 more
doaj   +1 more source

The Driver-Car [PDF]

open access: yesTheory, Culture & Society, 2004
The car has become ubiquitous in late modern society and has become the leading object in the ordinary social relations of mobility. Despite its centrality to the culture and material form of modern societies, the relationship between the car and human beings has remained largely unexplored by sociology.
openaire   +1 more source

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