Results 21 to 30 of about 897,839 (267)

The stochastic growth of metal whiskers

open access: yes, 2017
The phenomenon of spontaneously growing metal whiskers (MW) raises significant reliability concerns due to its related arcing and shorting in electric equipment. The growth kinetics of MW remains poorly predictable.
Karpov, Victor G.   +2 more
core   +1 more source

VICARED: A Neural Network Based System for the Detection of Electrical Disturbances in Real Time [PDF]

open access: yes, 2005
The study of the quality of electric power lines is usually known as Power Quality. Power quality problems are increasingly due to a proliferation of equipment that is sensitive and polluting at the same time.
Elena Ortega, José Manuel   +4 more
core   +1 more source

The feasibility of continuous basalt fibre‐reinforced polymer application to composite cross‐arms

open access: yesHigh Voltage, 2023
Composite cross‐arms have the advantages of high lightning resistance but impose onerous requirements on mechanical and insulation reliability. Traditional glass fibre composites fail to meet the needs of practical applications.
Yunpeng Liu   +6 more
doaj   +1 more source

Research on Transient Electromagnetic Detection Method for Substation Site Selection [PDF]

open access: yesE3S Web of Conferences, 2020
A transient electromagnetic detection method for site selection of substation grounding is proposed in this paper. And taking the fault detection experiment of transmission lines in a certain area of China as an example, the transient electromagnetic ...
Bo Yang   +3 more
doaj   +1 more source

Radioisotope thermionic power supply for spacecraft [PDF]

open access: yes, 1972
Power supply design for unmanned electric propulsion missions to outer planets utilizes a store of curium-244 in compact array of capsules as energy source.
Gietzen, A. J.   +2 more
core   +1 more source

Validation of the Pediatric Arthritis Ultrasound Scoring System for the Elbow, Wrist, and Finger Joints in Children With Juvenile Idiopathic Arthritis

open access: yesArthritis Care &Research, EarlyView.
Objective We aimed to validate the Pediatric Arthritis Ultrasound Scoring System (PAUSS) for upper extremity joints in children with juvenile idiopathic arthritis (JIA). Methods Children with JIA were evaluated for elbow, wrist, or finger arthritis by clinical examination (CE) and musculoskeletal ultrasound (MSUS) with images scored according to the ...
Patricia Vega‐Fernandez   +12 more
wiley   +1 more source

PD Defect Monitoring for Oil-Impregnated Paper Bushing by Measuring the Inner Pressure

open access: yesIEEE Access, 2019
When the inner insulation of oil-impregnated paper bushing breaks down in service, gases decomposed by oil and paper may cause an explosion. The explosion of bushing occurs from time to time because of the lack of an effective monitoring method. In order
Ling Chen   +6 more
doaj   +1 more source

Waveguide switch protector [PDF]

open access: yes, 1972
Device for detecting excessive operation of electric motors used to drive waveguide switches is described. Purpose of device is to prevent burnout of electric motor in event of waveguide stoppage at some point other than extreme limits of travel ...
Kolbly, R. B.
core   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Investigation on gas generation characteristics in transformer oil under vibration

open access: yesIET Generation, Transmission & Distribution, 2022
Operating experience has shown that characteristic gases can be found in oil‐immersed power transformers and high‐voltage reactors under strong vibration without discharge or thermal faults occurring.
Chong Guo   +5 more
doaj   +1 more source

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