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An Improved Arc Fault Location Method of DC Distribution System Based on EMD-SVD Decomposition
Applied 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
Energies, 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
Applied 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
A Comparison of Truck Driver Pre-Employment Hair and Urine Drug Test Efficacy
Logistics, 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
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Driving Hazard Perception tests: A Systematic Review [PDF]
Bulletin 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
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Drivers of success in implementing sustainable tourism policies in urban areas [PDF]
, 2015 The existing literature in the field of sustainable tourism highlights a number of barriers that impede the implementation of policies in this area. Yet, not many studies have so far considered the factors that would contribute to putting this concept ...
Altinay L. +32 more
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Mathematical model of two parallel synchronous motors supplied from current type frequency converter
Communications, 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
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Estimating illegal fishing from enforcement officers
Scientific 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
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Barekeng, 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
Would those who need ISA, use it? Investigating the relationship between drivers' speed choice and their use of a voluntary ISA system [PDF]
, 2006 Intelligent Speed Adaptation (ISA) is one of the most promising new technologies for reducing the prevalence and severity of speed-related accidents. Such a system could be implemented in a number of ways, representing various "levels of control" over ...
Comte +15 more
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