Results 191 to 200 of about 36,975 (307)

Threshold Currents of Vacuum Arcs With Tungsten and Copper Cathodes

High Voltage, EarlyView.
ABSTRACT This paper presents the results of an experimental study aimed at determining the threshold current for triggering a vacuum arc discharge, the probability of arc ignition and the average arc operation time depending on the current for tungsten and copper electrodes.
P. S. Mikhailov, I. L. Muzyukin, I. V. Uimanov, D. L. Shmelev, S. A. Barengolts   +4 more
wiley   +1 more source

Systemic-to-pulmonary artery shunt: a surgical strategy with no expiration date. [PDF]

Front Pediatr
Ruiz Pérez LE.
europepmc   +1 more source

Recognition of Spatiotemporal Feature Images of Zero‐Sequence Voltage for Single‐Phase High‐Impedance Ground Faults Under Complex Conditions

High Voltage, EarlyView.
ABSTRACT Diagnosing high‐impedance ground faults (HIGFs) in distribution networks is extremely challenging because high transition resistance significantly reduces electrical signal strength and unpredictable initial fault phase angles coupled with asymmetric voltage disturbances often lead to misclassification.
Zhengyang Li, Yijia Cao, Chun Chen, Weiyu Wang, Yansha Li, Jinglu Li   +5 more
wiley   +1 more source

Flow-Driven Right-to-Left Shunting Through the Patent Foramen Ovale Causing Hypoxemia and Embolism in a Partial Uhl Anomaly. [PDF]

JACC Case Rep
Laboratto LE, Vannoni G, Nieto G, Rancati J, Balletti L, Cestari G, Gagliardi JA, Kazelian L, Lax J.   +8 more
europepmc   +1 more source

Influence of Arc Faults on Pressure Production Characteristics in AC Turret of UHV Transformers

High Voltage, EarlyView.
ABSTRACT The overpressure caused by arc fault in the oil tank can lead to a transformer explosion. Since the AC turret of transformers serves to connect the transformer windings with the AC busbar, the arc current can be extremely high if an earth fault arc occurs leading to potentially hazardous pressure.
Yuhang Li, Yuanxiang Zhou, Guimin Jiang, Licheng Lu, Hongchuan Dong   +4 more
wiley   +1 more source

Evaluating the additive properties of differential pressure valves in a novel benchtop shunt model. [PDF]

Fluids Barriers CNS
Chandan Reddy S, Biswas D, Maroufi SF, Williams G, Dar N, Meggyesy M, Lee RP, Suk I, Luciano M.   +8 more
europepmc   +1 more source

Pressure Pulses Generated by Wire‐Guided Discharges in Water

High Voltage, EarlyView.
ABSTRACT The hydrodynamic characteristics of underwater wire‐guided discharges and their relationships with the wire length and pulsed circuit parameters are not fully understood. In this paper wire‐guided discharges using wires of length 3, 5 and 7 cm and diameter of 0.05 mm have been investigated. The energy available to the discharges was 162.3 J at
Yifan Chai, Igor Timoshkin, Martin J. Given, Scott J. MacGregor   +3 more
wiley   +1 more source

Can AI applied on MRI reliably predict shunt response in INPH? A comprehensive exploration of deep learning and radiomics approaches using preoperative MRI. [PDF]

PLoS One
Mogensen K, Guarrasi V, Behndig S, Eriksson De Ryst J, Soda P, Eklund A, Malm J, Qvarlander S.   +7 more
europepmc   +1 more source

Mechanism of Quasi‐Power‐Frequency Resonant Overvoltage Triggered by Multiple Lightning Strikes in High‐Voltage Alternating Current Systems Equipped With Shunt Reactor

High Voltage, EarlyView.
ABSTRACT This paper investigates the generation mechanism of quasi‐power‐frequency resonant overvoltage triggered by multiple lightning strikes in high‐voltage alternating current (HVAC) systems equipped with shunt reactors. Based on field measurements from a 500 kV AC system, equivalent and simplified circuit models have been established to analyse ...
Tao Liang, Tao Cui, Zhengxi Wang, Tongwei Guo, Xiaohui Wu, Hong Zeng, Jie Guo, Yanzhao Xie   +7 more
wiley   +1 more source

Inferior Sinus Venosus Defect: Inconclusive Transesophageal Echocardiography Clarified by Computed Tomography and Intracardiac Echocardiography. [PDF]

JACC Case Rep
Hashimoto G, Tsukagoshi Y, Saito A, Waga S, Ide S, Makino K, Hayashi F, Hara H.   +7 more
europepmc   +1 more source