Results 81 to 90 of about 572,795 (322)
‘Where are the adults?’: Troubling child‐activism and children's political participation
British 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
Condition Assessment of Metal Oxide Surge Arrester Based on Multi-Layer SVM Classifier
Iranian Journal of Electrical and Electronic Engineering, 2015 This paper introduces the indicators for surge arrester condition assessment based on the leakage current analysis. Maximum amplitude of fundamental harmonic of the resistive leakage current, maximum amplitude of third harmonic of the resistive leakage ...
M Khodsuz, M Mirzaie
doaj
Arrested Cracks in Nonlinear Lattice Models of Brittle Fracture [PDF]
, 1999 We generalize lattice models of brittle fracture to arbitrary nonlinear force laws and study the existence of arrested semi-infinite cracks. Unlike what is seen in the discontinuous case studied to date, the range in driving displacement for which these arrested cracks exist is very small.
arxiv +1 more source
Behavioral Sciences &the Law, EarlyView.ABSTRACT The Pareto principle is based on the concept that roughly 80% of outcomes are generated by 20% of inputs, efforts, or contributors within a group. Using a national sample of U.S. prison inmates, we examined various percentile rankings of self‐reported institutional misconduct to determine how much disorder is created behind bars by the most ...
Mark A. Morgan +3 more
wiley +1 more source
Energies, 2022 This paper proposes a systematic and deterministic method for metal-oxide varistor (MOV) surge arrester selection based on the comprehensive analysis in line-commutated converter (LCC)-based high-voltage direct current (HVDC) transmission systems.
Jaesik Kang
doaj +1 more source
Evaluasi Perlindungan Gardu Induk 150 Kv Pandean Lamper Di Trafo III 60 Mva Terhadap Gangguan Surja Petir [PDF]
, 2012 One of the main causes of damage to existing equipment in the substation was struck bylightning attack that cause the conductor wave and make over voltage and flames leap peak voltage exceeds BIL.
Assaffat, L. (Luqman) +2 more
core
Chemistry &Biodiversity, EarlyView.Schematics workflow for the isolation and characterisation of endophytic fungi from grewia lasiocarpa and their biological activity. Abstract The genus Grewia are well‐known for their medicinal properties and are widely used in traditional remedies due to their rich phytochemical composition and potential health benefits.
Nneka Augustina Akwu +7 more
wiley +1 more source
Electrical engineering & Electromechanics, 2015 Purpose.The aim of this study is to obtain a method for determining the capacity surge arrester nonlinear absorb energy without breaking the heat balance in modes of long-term application of operating voltage, which allows for analysis of their work in ...
S.Yu. Shevchenko
doaj
STUDY ON SURGE ARRESTER PERFORMANCE DUE TO LIGHTNING STROKE IN 20 KV DISTRIBUTION LINES [PDF]
, 2009 Abstrak Electric energy has been transmiting from power station to end user with transmission and distribution lines. Lightning strokes are problems that occure in transmission and distribution lines and make them fault when the electric energy were ...
Liliyana NS, Liliyana NS +2 more
core
International Journal of Circuit Theory and Applications, EarlyView.For the series active filter (SAF), a combined controller and observer scheme is proposed. Two controllers—state feedback (SFB) and linear quadratic regulator (LQR)—along with state observers, including the Luenberger observer (LO), proportional–integral observer (PIO), and unknown input observer (UIO), have been designed.
Nagulapati Kiran, I. E. S. Naidu
wiley +1 more source