Results 1 to 10 of about 268,905 (176)

Impulse Life Evaluation Method of MOV Based on Weibull Distribution

open access: yesIEEE Access, 2021
The working life evaluation of metal oxide varistor (MOV) is always expected by MOV manufacturers and users. In Oct. 2019, the International Electrotechnical Commission (IEC) SC37B established a project team PT 61643–333 led by the author of this ...
Qibin Zhou   +3 more
doaj   +1 more source

Research on electrothermal characteristics of metal oxide varistor based on multi‐physical fields

open access: yesIET Generation, Transmission & Distribution, 2022
The electrothermal characteristics of metal oxide varistor (MOV), closely related to its microstructure, are important for studying its failure mechanism.
Qibin Zhou   +4 more
doaj   +1 more source

Numerical modelling of MOV with Voronoi network and finite element method

open access: yesHigh Voltage, 2021
The electrical and thermal characteristics of metal oxide varistor (MOV) are essential for the study of MOV performance and degradation. This paper provides a modelling method of MOV to simulate its microstructure geometry with the Voronoi network and ...
Qibin Zhou   +4 more
doaj   +1 more source

Use of a convolutional neural network to segment signals of motor operated valves [PDF]

open access: yesNuclear Energy and Technology, 2021
Motor operated valves (MOV) are one of the most numerous classes of the nuclear power plant components. An important issue concerned with the MOV diagnostics is the lack of in-process (online) automated control for the MOV technical condition during full
Konstantin I. Kotsoyev   +2 more
doaj   +3 more sources

The Impact of the Madden‐Julian Oscillation on the Formation of the Arabian Sea Monsoon Onset Vortex

open access: yesGeophysical Research Letters, 2023
During certain years, a synoptic scale vortex called the monsoon onset vortex (MOV) forms within the northward advancing zone of precipitating convection over the Arabian Sea. The MOV does not form each year and the reason is unclear.
Shreyas Dhavale, Anantha Aiyyer
doaj   +1 more source

Missed opportunities for vaccination (MOV) in children up to 5 years old in 19 Médecins Sans Frontières-supported health facilities: a cross-sectional survey in six low-resource countries

open access: yesBMJ Open, 2022
Objective To describe missed opportunities for vaccination (MOV) among children visiting Médecins Sans Frontières (MSF)-supported facilities, their related factors, and to identify reasons for non-vaccination.Design Cross-sectional surveys conducted ...
Catherine Bachy   +3 more
doaj   +1 more source

The Magnitude and Determinants of Missed Opportunities for Childhood Vaccination in South Africa

open access: yesVaccines, 2020
Missed opportunities for vaccination (MOV) may be among the factors responsible for suboptimal vaccination coverage in South Africa. However, the magnitude and determinants of MOV in the country are not known.
Duduzile Ndwandwe   +2 more
doaj   +1 more source

Institutionalisering van maatschappelijke ondernemingsverslaggeving [PDF]

open access: yesMAB, 2012
Maatschappelijke ondernemingsverslaggeving (MOV) heeft zijn plaats gevonden en ontleent bestaansrecht aan het afleggen van verantwoording aan de maatschappij. Dat suggereert dat er een verband bestaat tussen onderneming en maatschappij.
Saskia De Bruijn, René Orij
doaj   +3 more sources

Design of Lightning Arresters for Electrical Power Systems Protection

open access: yesAdvances in Electrical and Electronic Engineering, 2013
This paper presents an overview of how the lightning strikes and their effects on power distribution systems can be modeled, where the results give a clear picture of how to eliminate the devastating impact, caused by lightning, by using lightning ...
Shehab Abdulwadood
doaj   +1 more source

Can vaccination coverage be improved through reducing the missed opportunities for immunization? Results from the evaluation in Zhejiang province, east China

open access: yesHuman Vaccines & Immunotherapeutics, 2021
Background: To evaluate the missed opportunities for vaccination (MOV) in Zhejiang province by using the global methodology from World Health Organization (WHO). Methods: Based on the WHO Planning Guide to Reduce Missed Opportunities for Vaccination (MOV)
Yaping Chen   +4 more
doaj   +1 more source

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