Results 81 to 90 of about 9,923 (283)

Surge Arrester Monitoring under Different Operating Conditions Using Bees-ANFIS

open access: yesIranian Journal of Electrical and Electronic Engineering, 2019
The essential role of surge arresters is equipment protection against over-voltages to increase system reliability. Different monitoring techniques have been used to diagnose surge arrester condition.
M. Khodsuz, S. Seyyedbarzegar
doaj  

A Simplified Lightning Model for Metal Oxide Surge Arrester [PDF]

open access: yes, 2002
Lightning strike has been one of the major factors that lead to failure of electrical power systems. In recent years, metal oxide surge arrester has been widely used and it is now an essential item in the insulation coordination for power systems based ...
Mardira, K. P., Saha, T.K.
core  

Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae

open access: yesThe Anatomical Record, EarlyView.
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza   +3 more
wiley   +1 more source

Recent Advances in Virus–Host Interactions, Antiviral Bioactive Compounds, and Breeding for Disease Resistance of Porcine Epidemic Diarrhea Virus

open access: yesAnimal Research and One Health, EarlyView.
Basic research on the PEDV infection cycle and virus–host interactions advances the development of anti‐PEDV drugs and disease‐resistant breeding and helps strengthen disease prevention and control while reducing economic losses in the swine industry.
Heyong Wu   +8 more
wiley   +1 more source

SURGE PROTECTION OF BUILDINGS CONNECTED TO AN OVERHEAD LOW-VOLTAGE NETWORK [PDF]

open access: yes, 2006
U prenaponskoj zaštiti na niskom naponu postoje tri klase uređaja prenaponske zaštite. Predstavljena metoda izbora uređaja prenaponske zaštite može se koristiti pri donošenju odluke koje klase treba biti uređaj prenaponske zaštite koji se postavlja u ...
I. Pavić, I. Uglešić, V. Milardić
core   +1 more source

‘Where are the adults?’: Troubling child‐activism and children's political participation

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Children's political participation is a well‐established theme in childhood studies. In this article we offer an original account of child activism that takes into account the entangled and emergent aspect of children as activists. We begin with a historical and a conceptual review, noting the importance of mid‐20th century developments such ...
Sharon Hunter, Claire Cassidy
wiley   +1 more source

DC fault protection structures at a DC-link node in a radial multi-terminal high-voltage direct current system [PDF]

open access: yes, 2016
In a multi-terminal HVDC system, DC circuit breakers (DCCBs) are conventionally connected in a star-configuration to enable isolation of a DC fault from the healthy system parts.
Fletcher, John E.   +3 more
core   +1 more source

Between soft power and suspicion: Chinese international students as diasporic actors in U.S.‐China geopolitical tensions

open access: yesBritish Educational Research Journal, EarlyView.
Abstract This study examines the under‐theorized political role and identity of Chinese international students, who emerge as significant actors caught between U.S. soft power ambitions and rising geopolitical suspicion. Amid escalating U.S.‐China tensions, these students are forced to confront environments shaped by competing geopolitical discourses ...
Jing Yu
wiley   +1 more source

Leakage Current Analysis of Polymer and Porcelain Housed Metal Oxide Surge Arresters in Humid Ambient Conditions

open access: yesIranian Journal of Electrical and Electronic Engineering, 2015
This paper aims to measure and analyze of the leakage current of 20 kV polymer and porcelain metal oxide surge arresters under humid ambient conditions by applying different voltages to the arresters terminal.
K. Mokhtari, M. Mirzaie, M. Shahabi
doaj  

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