Results 21 to 30 of about 40,802 (312)

Flame Hair [PDF]

open access: yesSkin Appendage Disorders, 2015
<b><i>Background:</i></b> ‘Flame hairs' is a trichoscopic feature described as hair residue from pulling anagen hairs in trichotillomania. <b><i>Objective:</i></b> To detect whether flame hairs are present in other hair loss disorders.
Mariya Miteva, Antonella Tosti
openaire   +2 more sources

Counterflow flame extinction of ammonia and its blends with hydrogen and C1-C3 hydrocarbons

open access: yesApplications in Energy and Combustion Science, 2022
Ammonia as a fuel offers the potential to avoid carbon emissions, but its combustion is hindered by low reactivity. Here, the extinction limits of NH3 and NH3 plus reactivity enhancers were measured in the counterflow laminar non-premixed flames.
Adamu Alfazazi   +6 more
doaj   +1 more source

Study on the breakdown characteristics of conductor-plane gap under vegetation fire condition based on the combustion features

open access: yesThe Journal of Engineering, 2019
The frequent forest fires become a serious threat to the performance of transmission lines’ external insulation, therefore, researches on the breakdown characteristics under flame conditions is of great significance for the transmission lines ...
Daochun Huang, Wei Lu, Tao Yao, Peng Li
doaj   +1 more source

Comparative Study on Combustion and Flame Characteristics of Laminar Methane/Air and N-Butane/Air Flames in a Micro-Slot Burner

open access: yesInternational Journal of Chemical Engineering, 2022
Combustion and flame characteristics of laminar methane/air and n-butane/air flames in a 3D-printed micro-slot burner is compared and reported in this study. The stability limit, flame appearance, and emission performance are investigated experimentally.
Soroush Sheykhbaglou   +1 more
doaj   +1 more source

Off‐axis self‐reference digital holography in the visible and far‐infrared region

open access: yesETRI Journal, 2019
Recent advances in digital holography in the far‐infrared region of the spectrum have demonstrated the potential use of digital holography in homeland security as a tool to observe hostile environments in which smoke, flames, and dust impair vision ...
Vittorio Bianco   +3 more
doaj   +1 more source

Turbulent flame image classification using Convolutional Neural Networks

open access: yesEnergy and AI, 2022
Pockets of unburned material in turbulent premixed flames burning CH4, air, and CO2 were studied using OH Planar Laser-Induced Fluorescence (PLIF) images to improve current understanding.
Rathziel Roncancio   +2 more
doaj   +1 more source

Numerical Investigation of the Chemical Effect and Inhibition Effect Improvement of C3H2F3Br (2-BTP) Using the Perfectly Stirred Reactor Model

open access: yesEnergies, 2018
The overall chemical rate and chemical effect of CF3Br, 2-BTP and 2-BTP/CO2 with hydrocarbon flames are calculated using the perfectly stirred reactor (PSR) model. The chemical effects of CF3Br with CH4/air flames always inhibit combustion.
Ping Li   +3 more
doaj   +1 more source

Flow field and interaction of lifted flames in a triple port burner

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In this study, we experimentally examined a combustion field in a triple port burner. There are four flame configurations, consisting of attached flames, inner attached/outer lifted flames, inner lifted/outer attached flames, and twin lifted flames ...
Kazuhiro YAMAMOTO   +3 more
doaj   +1 more source

Propagation Properties of Turbulent Premixed Flames Neutral for Thermo-Diffusive Effects

open access: yesInternational Journal of Automotive Engineering, 2020
Burning velocity is one of the important properties of premixed turbulent flames. Premixed turbulent flames are, in general, subjected to the thermo-diffusive effects in addition to the increase in the flame front area due to the influence of turbulence.
Toshiaki Kitagawa   +4 more
doaj   +1 more source

Can laser-induced incandescence calibrated by laser extinction method be used for quantitative determination of soot volume fraction in laminar flames?

open access: yesApplications in Energy and Combustion Science, 2023
This review is conducted to assess the effectiveness of the laser extinction method (LEM) calibrated laser-induced incandescence (LII) to quantitatively determine the soot volume fraction in flames.
Zijian Zhang, Lei Zhou, Xiaozhou He
doaj   +1 more source

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