Results 111 to 120 of about 3,550 (261)

A Dual‐Frequency Sensitivity Model for Optical Fibre Ultrasonic Sensors in Power Transformer Partial Discharge Detection

High Voltage, EarlyView.
ABSTRACT The detection of partial discharges (PD) on the power transformer tank demands higher sensitivity in ultrasonic detection. To target the detection frequency band for sensor optimisation and enhance sensitivity, this paper presents a dual‐frequency sensitivity model for optical fibre ultrasonic sensors.
Sihan Wang, Jihang Sun, Jialin Wang, Bin Wei, Guoming Ma   +4 more
wiley   +1 more source

Evaluation Methodology, Numerical Verification and Retrofilling Procedure for Power Transformers to Ensure K‐Class Flame Retardancy and Environmentally Friendly

High Voltage, EarlyView.
ABSTRACT With increasing demands for fire safety and environmental friendliness, retrofilling transformers with alternative insulating liquids has become a growing trend. However, retrofilling power transformers remains uncertain, as more residual mineral oil compromises K‐class flame retardancy, and its impact on environmental performance has yet to ...
Zhenfu Tang, Yihua Qian, Dan Zhou, Wei Hu, Feipeng Wang, Yang Xu   +5 more
wiley   +1 more source

Arc Resistance Enhancement of Converter Transformer Tank Through Structural Improvements: Simulation and Experimental Validation

High Voltage, EarlyView.
ABSTRACT Currently, limited research exists on the structural response and protection methods of the converter transformer tank for ± 800 kV ultra‐high voltage direct current transmission project to high energy arc faults. This research investigates the dynamic response and the vulnerable areas of the ultra‐high voltage converter transformer under the ...
Ke Wang, Shuqi Zhang, Yikun Zhao, Yichen Wang, Zongliang Zhang, Jinhua Zhang   +5 more
wiley   +1 more source

Development of ± 550 kV DC GIS Basin Insulator

High Voltage, EarlyView.
ABSTRACT The basin insulator is a core component of the insulation system for ± 550 kV gas‐insulated switchgear (GIS). This paper, using a finite element method for multi‐physics simulations of electric–thermal coupling, determines a geometry suitable for the industrial production of ± 550 kV GIS basin insulators.
Shaohua Cao, Chengwei Jing, Siqiong Zhang, Zuodong Liang, Zehao Zhang, Fangwei Liang, Yong Yang, Geng Chen, Jinliang He, Chuanyang Li   +9 more
wiley   +1 more source

Prey group cohesion mediates the outcome of predator–prey interactions under artificial lighting

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The highest rates of piscivorous predation in the field have been recorded during crepuscular light levels associated with sunrise and sunset or artificial lighting at night (ALAN).
Jessica R. Frey, Benjamin P. Burford, Rebecca R. Robinson, Lance K. Takata, Brendan M. Lehman, Cyril J. Michel   +5 more
wiley   +1 more source

Games and gamification projects in the Australian public sector

Australian Journal of Public Administration, EarlyView.
Abstract This article surveys the arrival of gameful government into Australian public sector practice. Gameful government is a shorthand, descriptive term denoting the interpenetration of (video)games, and design elements and thinking from them, into public sector work.
David Threlfall, Catherine Althaus
wiley   +1 more source

Centralised by Design: Anglocentric Constitutionalism, Accountability and the Failure of English Devolution

The Political Quarterly, Volume 96, Issue 1, Page 189-198, January/March 2025.
Abstract The Labour manifesto in this year's election implied a radical restructuring of the UK state, the way in which England is governed and in relations across the United Kingdom. The aim of making English devolution the ‘default option’ is set against fifty years of unsuccessful and partial devolution initiatives which have failed to reverse the ...
John Denham, Janice Morphet
wiley   +1 more source

Numerical study on the 6-DOF motions of ship turning in waves. [PDF]

Sci Rep
Zhan J, Ma Y, Zhan C, Shang H.
europepmc   +1 more source

Change and Continuity in British Politics: Can the Starmer Government's Approach to Governance Resolve the Crisis in the British State without Radical Reform?

The Political Quarterly, Volume 96, Issue 1, Page 140-148, January/March 2025.
Abstract In this article, the key dilemmas that will confront the new Labour administration in Britain during its initial period in power are examined. The Starmer government is seeking to use the state pragmatically to improve British economic performance, stem the crisis in public services and strengthen the strategic capacity of Whitehall.
Patrick Diamond, David Richards, Sam Warner   +2 more
wiley   +1 more source

Comprehensive experimental study on the key performance of a semi-submersible aquaculture cage. [PDF]

iScience
Kong W, Wang Z, Yang S, Yang R, Zhou C, Ding W, Chen M, Yang X, Wang K, Wang L.   +9 more
europepmc   +1 more source