Results 51 to 60 of about 21,184 (136)

A novel approach for high impedance fault detection in resonant grounding systems based on statistical characteristics

Scientific Reports
High impedance faults (HIF) in the resonant grounding system of distribution networks pose significant challenges for traditional protection devices, which often fail to detect and eliminate these faults promptly. The difficulty in setting an appropriate
Qinglin Meng, Yuan Gao, Sheharyar Hussain, Ying He, Botong Li   +4 more
doaj   +1 more source

Experimental demonstration of a surface-electrode multipole ion trap

, 2015
We report on the design and experimental characterization of a surface-electrode multipole ion trap. Individual microscopic sugar particles are confined in the trap.
Allen, Curtis, Burke, Timothy, Clark, Robert, Farr, Andrew, Green, Dylan, Hilleke, Russell, Maurice, Mark   +6 more
core   +1 more source

Fault line selection method for resonant grounding systems based on DTW-Hilbert and improved K-means

Gong-kuang zidonghua
Due to the influence of factors such as arc suppression coils, transition resistance, and environmental noise, the fault signal characteristics in resonant grounding systems are weak.
ZHANG Zhaoxi, ZHANG Hongle, HUANG Yanfa, CHEN Xingxiang, JIA Haicheng, YUAN Pengsheng   +5 more
doaj   +1 more source

A quantum-dot heat engine operating close to the thermodynamic efficiency limits

, 2018
Cyclical heat engines are a paradigm of classical thermodynamics, but are impractical for miniaturization because they rely on moving parts. A more recent concept is particle-exchange (PE) heat engines, which uses energy filtering to control a thermally ...
Burke, Adam M.,, Fahlvik, Sofia,, Hoffmann, Eric A.,, Josefsson, Martin,, Leijnse, Martin,, Linke, Heiner,, Lund University., Lund University., Svilans, Artis,, Thelander, Claes,   +9 more
core   +1 more source

Aircraft electromagnetic compatibility [PDF]

Illustrated are aircraft architecture, electromagnetic interference environments, electromagnetic compatibility protection techniques, program specifications, tasks, and verification and validation procedures.
Clarke, Clifton A., Larsen, William E.
core   +1 more source

Injection Current Distribution Characteristics Identification Based Distribution-Level Fault Line Selection

Zhongguo dianli
Addressing the challenges posed by the subtle characteristics of single-phase grounding faults in resonant grounding systems, which lead to decreased sensitivity and reliability in fault line selection methods reliant on these characteristics, an ...
Xiaowei WANG, Yang YUE, Liang GUO, Xue WANG, Yizhao WANG, Zhihua ZHANG, Fengfeng YANG   +6 more
doaj   +1 more source

High Voltage in Noble Liquids for High Energy Physics

, 2014
A workshop was held at Fermilab November 8-9, 2013 to discuss the challenges of using high voltage in noble liquids. The participants spanned the fields of neutrino, dark matter, and electric dipole moment physics.
A Tomas, B Lundberg, B Rebel, C H Faham, C Hall, E Bernard, F Monrabal, F Resnati, H Wang, J Va'vra, M Messina, M Soderberg, P C Rowson, S P Pereverzev, T M Ito, T Strauss   +15 more
core   +1 more source

Frequency-Dependent Grounding Impedance of a Pair of Hemispherical Electrodes: Inductive or Capacitive Behavior?

Energies
This article is the authors’ last contribution to a trilogy of research papers submitted to Energies’ Special Issue on Electromagnetic Field Computation, aimed at the theoretical analysis and numerical computation of the frequency-dependent complex ...
José Brandão Faria, João Pereira Fernandes, Vitor Maló Machado, Maria Eduarda Pedro   +3 more
doaj   +1 more source

Development of a Space Vehicle Electromagnetic Interference/compatibility Specification. Volume 3 - System Specification [PDF]

This specification represents a new approach to controlling electromagnetic interference. In this approach the system integration contractor will be responsible for the development of discrete specification limits to be utilized on the program to which ...
Cooperstein, B. D., Johnson, W. R.
core   +1 more source

Electromagnetic Compatibility Considerations for International Space Station Payload Developers [PDF]

The International Space Station (ISS) is a laboratory for scientific research, innovative technology development, and global education. The ISS provides a number of facilities and platforms for payload developers and investigators to conduct biological ...
Kim, Larry, Lowe, Christopher, McCollum, Matthew   +2 more
core   +1 more source