Results 11 to 20 of about 156,036 (282)

Investigation of Temperature Fluctuation of Diode-Rectified Multiphase AC Arc by High-Speed Visualization [PDF]

open access: yesMATEC Web of Conferences, 2021
An innovative multiphase AC arc was drastically improved by diode-rectification technique with bipolar electrode. Temperature fields and arc behaviour of the diode-rectified multiphase AC was successfully visualized on the basis of the high-speed camera ...
Tanaka Manabu   +4 more
doaj   +1 more source

Are Boltzmann plots of hydrogen Balmer lines a tool for identifying a subclass of S1 AGN? [PDF]

open access: yesAdvances in Space Research, 2014
It is becoming clear that we can define two different types of nearby AGN belonging to the Seyfert 1 class (S1), on the basis of the match of the intensities of their Broad Balmer Lines (BBL) with the Boltzmann Plots (BP). These two types of S1 galaxies, that we call BP-S1 and NoBP-S1, are characterized, in first approximation, by Broad Line Regions ...
RAFANELLI, PIERO   +6 more
openaire   +3 more sources

Simulations of the broad line region of NGC 5548 with CLOUDY code: Temperature determination [PDF]

open access: yesSerbian Astronomical Journal, 2007
In this paper an analysis of the physical properties of the Broad Line Region (BLR) of the active galaxy NGC 5548 is presented. Using the photoionization code CLOUDY and the measurements of Peterson et al.
Ilić D.
doaj   +1 more source

Interpretation of temperature measurements by the Boltzmann plot method on spatially integrated plasma oxygen spectral lines

open access: yesThe European Physical Journal Applied Physics, 2023
In thermal plasma spectroscopy, the Boltzmann plot method is particularly popular for measuring plasma temperature independently of pressure. In order to better understand the results of the Botzmann plot measurements performed with atomic oxygen lines on our thermal plasma, which has a non-negligible thickness, a Python code was developed based on the
Julien Thouin   +3 more
openaire   +1 more source

Spectroscopic Diagnostics of Plasma parameter in Laser Induced Plasma using PbO Lines

open access: yesTikrit Journal of Pure Science, 2019
The optical emission spectrum of produced plasma was studied using pulse laser, where the effect of laser energy at a wavelength of 1064nm  was studied on lead oxide that produced by optical emission spectroscopy at different laser energy from 500 to ...
Anas A. Abdullah   +2 more
doaj   +1 more source

Bulk viscosity of low-temperature strongly interacting matter [PDF]

open access: yes, 2011
We study the bulk viscosity of a pion gas in unitarized Chiral Perturbation Theory at low and moderate temperatures, below any phase transition to a quark-gluon plasma phase.
Aamodt   +22 more
core   +2 more sources

Plasma characteristics of Ag:Al alloy produced by fundamental and second harmonic frequencies of Nd:YAG laser

open access: yesIraqi Journal of Physics, 2019
In this work, the spectra for plasma glow produced by pulse Nd:YAG laser (λ=532 and 1064nm) on Ag:Al alloy with same molar ratio samples in distilled water were analyzed by studying the atomic lines compared with aluminum and silver strong standard ...
Ali A-K. Hussain
doaj   +1 more source

Optical emission spectroscopy for studying the exploding copper wire plasma parameters in distilled water

open access: yesIraqi Journal of Physics, 2018
This work aims to study the exploding copper wire plasma parameters by optical emission spectroscopy. The emission spectra of the copper plasma have been recorded and analyzed The plasma electron temperature (Te), was calculated by Boltzmann plot, and ...
Hammad R. Humud
doaj   +1 more source

Assessment of laser induced breakdown spectroscopy accuracy for determination of hydrogen accumulation in tungsten

open access: yesNuclear Materials and Energy, 2021
Laser-induced breakdown spectroscopy (LIBS) is an in situ method of determining hydrogen (H) content in plasma-facing materials in tokamak fusion reactors.
E.D. Marenkov   +3 more
doaj   +1 more source

Effect of gas flow rate on plasma temperature and electron density of atmospheric argon plasma jet

open access: yesIraqi Journal of Physics, 2018
In this study, method for experimentally determining the electron density (ne) and the electron temperature (Te) in the atmospheric Argon plasma jet is used; it is based on optical emission spectroscopy (OES).
Kadhim A. Aadim
doaj   +1 more source

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