Results 81 to 90 of about 16,763 (260)

Effect of surface friction on ultrafast flame acceleration in obstructed cylindrical pipes

AIP Advances, 2019
The Bychkov model of ultrafast flame acceleration in obstructed tubes [Valiev et al., “Flame Acceleration in Channels with Obstacles in the Deflagration-to-Detonation Transition,” Combust.
Abdulafeez Adebiyi, Rawan Alkandari, Damir Valiev, V’yacheslav Akkerman   +3 more
doaj   +1 more source

Bioinspired Multifunctional Flexible C‐SiC Fibrous Aerogel for Superior Electromagnetic Interference Shielding Under Extreme Environments

Advanced Science, EarlyView.
This schematic presents a biomimetic C‐SiC fibrous aerogel inspired by the special structure of momordica charantia. It exhibits outstanding thermal insulation and ultrahigh specific electromagnetic shielding performance, together with excellent high‐temperature stability and mechanical flexibility, showing great promise for aerospace applications ...
Tianyue Yang, Yan Shen, Zhongqian Zhao, Xue Zhou, Qianji Chen, Xujing Wang, Chuchu Zheng, Zhaoxiang Lu, Yangzhong Zhao, Yanzi Gou   +9 more
wiley   +1 more source

Study on the open-air NEPE solid propellant fire characteristics: Effect of altitude upon the flame performance through CFD

FirePhysChem
Solid propellant fires, characterized by uncontrolled combustion behaviors, are a common occurrence in industries that utilize solid propellants and can lead to significant consequences. However, there has been a lack of comprehensive studies on modeling
Li Yu, Yupeng Hu, Guangmei Shi, Minghai Li, Yanhong Zhang   +4 more
doaj   +1 more source

Graphene Aerogels With Spherical Pore Structure for Broad Frequency Regulation and Enhanced Low‐Frequency Response

Advanced Science, EarlyView.
A graphene aerogel with a spherical‐pore structure is constructed via microbubble templating. This unique architecture suppresses strain‐induced percolation of conductive networks, enabling dynamic frequency tuning. It also delivers enhanced low‐frequency absorption with an effective absorption bandwidth of 2.56 GHz, covering 91% of the low‐frequency ...
Liang Li, Jiale Yan, Gengping Wan, Changlong Du, Yubing Lv, Yongzhu Yan, Zhaoyang Li, Guizhen Wang   +7 more
wiley   +1 more source

Hydrogen Safety by Design: Exclusion of Flame Blow-Out from a TPRD

Hydrogen
Onboard hydrogen storage tanks are currently fitted with thermally activated pressure relief devices (TPRDs), enabling hydrogen to blowdown in the event of fire.
Mina Kazemi, Sile Brennan, Vladimir Molkov   +2 more
doaj   +1 more source

Dynamics of unconfined spherical flames

, 2012
Using the soap bubble technique, we visualize the dynamics of unconfined hydrogen-air flames using high speed schlieren video. We show that for sufficiently weak mixtures, i.e., low flame speeds, buoyancy effects become important. Flame balls of a critical dimension begin to rise.
Leblanc, Louis, Manoubi, Maha, Dennis, Kadeem, Zhe, Liang, Radulescu, Matei I.   +5 more
openaire   +2 more sources

High‐Performance Transparent Solid Polymer Electrolyte Based on Copolymer of Deep Eutectic Electrolyte and Methyl Methacrylate for Electrochemical Devices

Advanced Science, EarlyView.
A copolymerization strategy using a polymerizable deep eutectic electrolyte with MMA forms efficient ion‐transport pathways while maintaining excellent transparency. The solid polymer electrolyte simultaneously achieves 17.8 MPa mechanical strength and 1.43 mS cm−1 ionic conductivity, enhancing long‐term cycling stability in Li|LFP batteries and ...
Tingting Chen, Sijia Han, Likun Wang, Sainan Ma, Liping Zhang, Yong Liu, Gaorong Han   +6 more
wiley   +1 more source

Experimental Investigation and Theoretical Analysis of Flame Spread Dynamics over Discrete Thermally Thin Fuels with Various Inclination Angles and Gap Sizes

Fire
Flame spread over discrete fuels is a typical phenomenon in fire scenes. Experimental and theoretical research on flame spread over discrete thermally thin fuels separated by air gaps with different inclination angles was conducted in the present study ...
Xiaoliang Zhang, Shibing Kuang, Yanli Zhao, Jun Zhang, Shengfeng Luo   +4 more
doaj   +1 more source

Nanowires Reinforce Oriented Macroporous Aerogels for Rapid Uranium Removal from Acidic Radioactive Wastewater

Advanced Science, EarlyView.
A “reinforced concrete” structural aerogel with directional microchannels is engineered for rapid uranium capture. The interconnected architecture enables ultrafast water permeation, and the nanowire reinforcement yields a 70‐fold increase in mechanical strength.
Ze Liu, Simin Guan, Se Shi, Hao Wang, Wenya Zhou, Hui Wang, Tao Liu, Yihui Yuan, Ning Wang   +8 more
wiley   +1 more source

Effect of the Inclination Angle on Premixed Flame Dynamics in Half-Open Ducts. [PDF]

ACS Omega, 2020
Yao Z, Deng H, Dong J, Wen X, Zhao W, Wang F, Chen G, Zhang X, Zhang Q.   +8 more
europepmc   +1 more source