Results 41 to 50 of about 151,234 (307)

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

open access: yesAdvanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee   +7 more
wiley   +1 more source

Investigation on The effect of Airgap Distance for Ignition Coils Using Finite Element Methods

open access: yesJournal of New Results in Science, 2016
– This study is related to the ignition coil which produces spark energy to ignite fuel mixture in cylinder of internal combustion motor. There are some problems that is commonly seen in automotive ignition coil.
Ugur Demir, Mustafa Caner Akuner
doaj  

Ignition processes and characteristics of charring conductive polymers with a cavity geometry in precombustion chamber for applications in micro/nano satellite hybrid rocket motors

open access: yesDefence Technology
The arc ignition system based on charring polymers has advantages of simple structure, low ignition power consumption and multiple ignitions, which bringing it broadly application prospect in hybrid propulsion system of micro/nano satellite.
Zhiyuan Zhang   +4 more
doaj   +1 more source

Ignition of organic explosives by an electron beam

open access: yesEPJ Web of Conferences, 2015
A numerical simulation of the ignition of organic explosives (PETN, HMX, RDX, TATB) with an electron beam was performed. A criterion for the ignition of energetic materials with a melting point below the temperature of ignition is obtained.
Ivanov Georgy A., Khaneft Alexander V.
doaj   +1 more source

Magnetized Fast Isochoric Laser Heating for Efficient Creation of Ultra-High-Energy-Density States [PDF]

open access: yes, 2017
The quest for the inertial confinement fusion (ICF) ignition is a grand challenge, as exemplified by extraordinary large laser facilities. Fast isochoric heating of a pre-compressed plasma core with a high-intensity short-pulse laser is an attractive and
Abe, Yuki   +38 more
core   +4 more sources

Energy Estimation and Testing Verification on Ignition of a Torch Ignition System

open access: yesJournal of Physics: Conference Series, 2022
Abstract The torch type electric ignition system is a desirable choice for reusable liquid vehicle engine. It is generally believed that the ignition and start-up process of engine are crucial and high-risk. However, due to the complexity of combustion experiments, the ignition and start-up process can be efficiently analysed from the ...
Jiabao Xu   +4 more
openaire   +1 more source

Unveiling the Role of Curvature in Carbon for Improved Energy Release of Ammonium Perchlorate

open access: yesAdvanced Materials, EarlyView.
High‐curvature carbon materials identified via machine learning and simulation can enhance the heat release and combustion performance of ammonium perchlorate. ABSTRACT The catalytic role of carbon curvature in the thermal decomposition of ammonium perchlorate (AP) remains largely unexplored. To address this gap, this study employs machine learning and
Dan Liu   +8 more
wiley   +1 more source

Study on Small Component Thermal Ignition Compliance meeting IEC Standard

open access: yesMATEC Web of Conferences, 2017
With the supplement and revision of IEC standard, the thermal ignition test of small components has been stipulated. Small component ignition test apparatus is testing equipment of intrinsically safe electrical products about thermal ignition.
Xue Qin
doaj   +1 more source

Spark Ignition Energy Measurements in Jet A [PDF]

open access: yes, 2000
Experiments have been carried out to measure the spark ignition energy of Jet A vapor in air. A range of ignition energies from 1 mJ to 100 J was examined in these tests.
Krok, J. Christopher   +2 more
core  

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

open access: yesAdvanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria   +6 more
wiley   +1 more source

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