Results 21 to 30 of about 116,272 (167)

Numerical and experimental study on oscillation mechanism of molten pool during pulsed microplasma arc welding ultrathin sheets

open access: yesResults in Physics, 2022
Molten pool oscillation behaviors during pulsed microplasma arc welding ultrathin stainless steel sheets were studied based on the numerical simulation, experimentally visual detection, and theoretical calculation. Without altering the average heat input,
Lei Xu   +5 more
doaj   +1 more source

CALCULATION-EXPERIMENTAL DETERMINATION OF THE AVERAGE NUMBER OF QUANTIZED LONGITUDINAL ELECTRON DE BROGLIE HALF WAVES IN A CYLINDRICAL CONDUCTOR WITH PULSED AXIAL CURRENT

open access: yesElectrical engineering & Electromechanics, 2020
Purpose. Implementation of calculation-experimental determination of average number n0m of the quantized longitudinal electron de Broglie half waves of length λezm/2 in the metal cylindrical conductor with the pulsed axial current of high density ...
M. I. Baranov, S. V. Rudakov
doaj   +1 more source

Experimental Study on the Current Pretreatment-Assisted Free Bulging of 304 Stainless Steel Sheets

open access: yesApplied Sciences
In order to further improve the microplastic deformation ability and forming performance of metal sheets, a pulse current pretreatment-assisted micro-forming method was proposed.
Jinchao Sun   +5 more
doaj   +1 more source

Application of Tin Sulfide-Tin Dioxide Nanocomposite as Oxygen Gas-Sensing Agent

open access: yesInternational Journal of Electrochemical Science, 2013
Tin sulfide-tin dioxide nanocomposite is synthesized by the pulsed-current electrochemical method on the surface of tin substrate. The prepared sample in conditions includes 92 mA.cm-2 current density, 13 Hz pulse frequency, 0.008 M sodium sulfide, pH 12.
Hassan Karami, Somayyeh Babaei
doaj   +1 more source

Pulsed eddy currents in ferromagnetic pipes with cladding in nuclear power plants

open access: yesEnergy Reports, 2022
The steam and water piping in a nuclear power plant is generally covered with cladding on the outer wall of the pipes, thereby improving heat transfer efficiency.
Yang Han   +4 more
doaj   +1 more source

Pulsed field ablation – Electroporation

open access: yesCardiologia Hungarica
Atrial fibrillation (AF) is the most common cardiac arrhythmia and pulmonary vein isolation (PVI) is the primary treatment. PVI is the most common electrophysiological intervention and therefore safety and efficacy are essential.
Zoltán Salló, Nándor Szegedi
doaj   +1 more source

Numerical simulation of arc plasma and molten metal behavior in gas metal arc welding process

open access: yesJournal of Fluid Science and Technology, 2018
In this study, to make clear the phenomena of the gas metal arc welding process more deeply, a simulation model including both the arc plasma and the metal transfer phenomena is constructed and influence of the arc current is numerically investigated ...
Yosuke OGINO   +2 more
doaj   +1 more source

Inhibition Behavior of Edge Cracking in the AZ31B Magnesium Alloy Cold Rolling Process with Pulsed Electric Current

open access: yesMetals, 2023
To solve the edge crack problem of AZ31B magnesium alloy cold rolling, a strong pulsed electric current was introduced to the cold rolling process. The influence of intensity, frequency, width of pulsed electric current and other parameters on edge ...
Jingna Sun   +4 more
doaj   +1 more source

Laser diode drive method with narrow-width and high-peak current for multi-line LIDAR

open access: yesJournal of Measurement Science and Instrumentation, 2019
Light detection and ranging(LIDAR) based on time of flight(TOF) method is widely used in many fields related to distance measurement. LIDAR generally uses laser diode(LD) to emit the pulsed laser with high peak power and short duration to ensure a large ...
LI Xu   +5 more
doaj  

Improving the operating characteristics of aluminium by electroplastic deformation

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук
The article presents the results of theoretical and experimental studies of electroplastic deformation by drawing (EPD) of electrical aluminum on an industrial multi-pass mill.
V. S. Savenko, Ch. Yangzi
doaj   +1 more source

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