Results 21 to 30 of about 15,206 (264)

METHOD OF CALCULATION OF AIR-FUEL MIXTURE MINIMUM IGNITION ENERGY IN GAS ENGINE [PDF]

Avtomobilʹnyj Transport (Harʹkov), 2013
The improved method of minimum ignition energy calculation in a gas engine that takes into account radiation energy losses in a flame kernel has been presented. Comparison of calculation results using this model with experimental data has been performed.
Abramchuk, F., Kabanov, A., Shvydkyi, D.
doaj  

Numerical simulation of drop weight impact sensitivity evaluation criteria for pressed PBXs

Defence Technology, 2023
A thorough understanding of drop-weight impacted responses for polymer-bonded explosives (PBXs) is significant to evaluate their impact sensitivity. The characteristics of the drop-weight impacted pressed PBXs including deforming, fracturing, forming a ...
Hong-zheng Duan, Yan-qing Wu, Kun Yang, Feng-lei Huang   +3 more
doaj   +1 more source

Study on the significant effects of ignition energy and gas volume fraction on gas explosion pressure and flame propagation speed

Meikuang Anquan
The maximum flame propagation speed, the peak pressure and the pressure rise rate of gas explosion were studied under the influence of two factors of ignition energy and gas volume fraction, by using the orthogonal experimental method in a closed ...
Liang ZHANG, Fangfang LAI, Jingde XU
doaj   +1 more source

Mathematical modelling of sparkplug ignition of a coal-dust monodisperse suspension in a methane-air mixture

MATEC Web of Conferences, 2017
The paper provides the numerical simulation of a coal-dust monodisperse suspension sparkplug ignition in a methane-air mixture. The methane-air mixture is not stoichiometric.
Krainov Alexey Yu., Moiseeva Ksenia M.
doaj   +1 more source

Experimental Study on Ignition Time of Industrial Electronic Detonator Ignition Head under Different Ignition Voltages

Gaoya wuli xuebao
In response to the practical engineering problem that the firing capacitor of electronic detonators may lose power after being impacted, which subsequently lead to insufficient firing energy and unreliable detonation, the firing time of metal bridge and ...
Jiajia GUAN, Hongwei LI, Lin YANG, Hao LIANG, Yanhong LIU, Shaobao LU, Fuyuan ZHU   +6 more
doaj   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced 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, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source

Designing Strong, Tough, Fire‐Retardant and Self‐Healing Elastomers with Phosphorus/Nitrogen‐ and Biphenyl‐Containing Segments

Advanced Materials, EarlyView.
By designing a P/N‐ and π–π interacting biphenyl‐containing diol as hard segments but side groups, a strong, tough, fire‐extinguishing and self‐healing elastomer is developed, demonstrating a break strain of ∼2500%, a toughness of 379 MJ/m3 and a tensile strength of 46 MPa, as well as a healing efficiency of 95% (tensile strength) and 99% (break strain)
Yijiao Xue, Shu Gong, Zhezhe Zhou, Zhewen Ma, Yanlong Luo, Mark Lynch, Jiabing Feng, Yan Zhang, Meng Zhang, Yonghong Zhou, Wenlong Cheng, Pingan Song   +11 more
wiley   +1 more source

Analysis of hohlraum energetics of the SG series and the NIF experiments with energy balance model

Matter and Radiation at Extremes, 2017
The basic energy balance model is applied to analyze the hohlraum energetics data from the Shenguang (SG) series laser facilities and the National Ignition Facility (NIF) experiments published in the past few years.
Guoli Ren, Jie Liu, Wenyi Huo, Ke Lan
doaj   +1 more source

Toward a Unified Mechanistic Understanding of Polymer Electrolytes for Advanced Solid‐State Batteries

Advanced Materials, EarlyView.
Polymer electrolytes (PEs) are often indiscriminately grouped as “solid polymer electrolytes (SPEs)”, despite fundamental differences in their ion‐transport mechanisms. This Perspective establishes a mechanism‐based framework that distinguishes gel, quasi‐solid, and all‐solid polymer electrolytes based on their dominant ion‐transport pathways.
Jing Chen, Han Chen, Michel Armand, Gunther Brunklaus, Jang Wook Choi, Yan‐Bing He, Bumjoon J. Kim, Seung Woo Lee, Stefano Passerini, Meera Mohankumar, Patrick Theato, Marnix Wagemaker, Martin Winter, Qiang Zhang, Shujiang Ding, Zhiqun Lin   +15 more
wiley   +1 more source

Ignition of organic explosives by an electron beam

EPJ 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