Results 21 to 30 of about 9,957,628 (348)

Arc discharge sliding over a conducting surface [PDF]

open access: yes, 1997
Results of experimental and theoretical studies of the arc discharge which slides over the surface of a conductor are reported. Experiments were performed in air and argon ambients at various pressures.
Goor, F.A. van   +4 more
core   +3 more sources

Anatomy of extraordinary rainfall and flash flood in a Dutch lowland catchment [PDF]

open access: yes, 2011
On 26 August 2010 the eastern part of The Netherlands and the bordering part of Germany were struck by a series of rainfall events lasting for more than a day. Over an area of 740 km2 more than 120 mm of rainfall were observed in 24 h. This extreme event
Brauer, C.C.   +6 more
core   +7 more sources

Investigation on the Applicability of the Time Domain Analysis of Discharges in Gases for the Defect Identification at AC Voltage

open access: yesTransactions on Environment and Electrical Engineering, 2017
The partial discharge diagnosis is an established instrument for the condition assessment of high voltage insulations and equipment. Under AC voltage stress the phase resolved pattern is of great significance in order to become aware of the type of fault.
Ulrich Lühring   +2 more
doaj   +1 more source

Enhancement Modelling Based on Electrical Discharge Machining Successive Discharges

open access: yesAdvances in Materials Science and Engineering, 2022
The surface roughness of Inconel 718 is predicted using a sequential discharge model for electrical discharge machining (EDM). To begin with, the EDM single pulse discharge machining process was accurately simulated using the finite-element method (FEM).
Farook Nehad Abed   +5 more
doaj   +1 more source

Ozone Generation by Surface Dielectric Barrier Discharge

open access: yesApplied Sciences, 2023
Surface dielectric barrier discharge (SDBD) is used in a variety of different applications; however, the ozone generated in the discharge can be toxic to people in the vicinity.
Mateusz Tański   +3 more
doaj   +1 more source

Effects of horizontal vibration on hopper flows of granular materials [PDF]

open access: yes, 1999
The current experiments investigate the discharge of glass spheres in a planar wedge-shaped hopper (45 degree sidewalls) that is vibrated hoizontally.
Brennen, C. E.   +4 more
core   +1 more source

Simulation of Partial Discharge Induced EM Waves Using FDTD Method—A Parametric Study

open access: yesEnergies, 2019
This paper reports the results of a parametric study on the characteristics of electromagnetic (EM) waves propagated due to surface- and cavity-type partial discharges (PD) in materials using the finite-difference time domain (FDTD) method. First, the EM
Alaa Loubani   +3 more
doaj   +1 more source

Influence of N2 pressure on surface discharge characteristics of PEEK under positive repetitive square voltage

open access: yesHigh Voltage, 2021
PEEK (polyetheretherketone) and N2 are used in the packaging of high‐voltage power electronics as the frame material and insulation gas, respectively. The surface discharge behaviours of PEEK in N2 under positive repetitive square voltage are the main ...
Ye Li   +4 more
doaj   +1 more source

Development and pattern identification of end-winding discharge under effect of relative humidity and temperature for HV motors

open access: yesHigh Voltage, 2020
During operation of high voltage (HV) motors, different types of discharges, e.g. surface discharge, corona discharge and bar-to-bar discharge can occur at the same time, increasing the difficulty of partial discharge (PD) sources determination and PDs ...
Ailiang Kang   +8 more
doaj   +1 more source

Fiber Optic Acoustic Sensor Based on SMS Structure With Thin Polymer Diaphragm for Partial Discharge Detection

open access: yesIEEE Access, 2020
This paper proposes a fiber optic acoustic sensor (FOAS) based on a single-mode fiber - multimode fiber - single-mode fiber (SMS) structure attached to a thin polymer film used as a diaphragm.
L. G. Pavan Kumar Chaganti   +4 more
doaj   +1 more source

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