Results 111 to 120 of about 5,746 (302)

A New Paradigm for Understanding the Rheology and Processability of Poly(p‐Phenylene Terephthalamide) Liquid‐Crystalline Solutions

Journal of Applied Polymer Science, EarlyView.
Kevlar is traditionally modeled as a rigid‐rod polymer, yet rheological behavior deviates from this assumption. The review introduces a novel “twist‐tie” entanglement theory for aramid polymer chains in the nematic liquid crystal state, providing a molecular explanation for deviations from rigid‐rod models. Understanding twist‐tie entanglement dynamics
Emma Egli, Jacob L. Pretko, Christopher W. Seay, Steven R. Lustig   +3 more
wiley   +1 more source

Effect of inert gas injection parameters on explosion suppression of H2-CH4 mixtures

Gong-kuang zidonghua
To investigate the effect of inert gas injection parameters on the explosion characteristics of H2-CH4 mixtures, experiments were carried out in a horizontal pipeline to study the suppression of H2-CH4 mixture explosions by N2 and CO2.
LI Shengli, WANG Changlu, ZHENG Yi, LI Bin   +3 more
doaj   +1 more source

Propagation and stability characteristics of laminar lifted diffusion flame base [PDF]

, 2012
Numerical calculations of the flame propagation speed and the Damkohler number (Da) at laminar lifted flame base were carried out. The results are intended for further understanding the propagation and the Damkohler mechanisms for flame stabilization ...

core   +1 more source

High Thermoelectric Performance Achieved by Manipulating the Band Structure and Lattice Dislocations in n‐Type Ge/Pb/Br Codoped Polycrystalline SnSe

Carbon Energy, EarlyView.
Pb/Ge/Br codoping in n‐type polycrystalline SnSe induces band convergence and high‐density dislocations, yielding a high power factor of 7.47 μW cm−1 K−2 and ultralow lattice thermal conductivity. Consequently, a peak ZT of 1.6 is achieved, overcoming the traditional performance limitations of n‐type SnSe.
Pubao Peng, Yang Geng, Jiajun Nan, Song Li, Dewei Zhang, Qing Lin, Yaru Gong, Guodong Tang   +7 more
wiley   +1 more source

Propagation speed of tribrachial (triple) flame of propane in laminar jets under normal and micro gravity conditions [PDF]

, 2011
The propagation speed of tribrachial (triple) flames in laminar propane jets has been investigated experimentally under normal and micro gravity conditions.
Jong-Soo Lee (194708), Seong-Ho Jin (17160853), Sang-Hee Won (17244178), O. Fujita (17244175), K. Ito (495543), Suk-Ho Chung (17239885)   +5 more
core   +2 more sources

Oxidative Fast Pyrolysis Enabling Autothermal Production of Porous Functionalized Biochar and Anhydrosugar/Phenol‐Rich Bio‐Oil From Biomass

Carbon Energy, EarlyView.
Oxidative fast pyrolysis of biomass enables autothermal production of value‐added products. ABSTRACT Oxidative fast pyrolysis can potentially overcome the heat‐supply bottleneck of conventional fast pyrolysis by enabling autothermal operation while also tailoring product quality through controlled oxygen addition.
Bin Li, Mengge Song, Sunwen Xia, Kexin Jia, Wojciech Jerzak, Yusuf Makarfi Isa, Dongjing Liu, Xing Xie, Qingfa Zhang, Zhong Ma, Mingfeng Wang, Weiwei Liu, Shihong Zhang, Haiping Yang, Rock Keey Liew, Su Shiung Lam   +15 more
wiley   +1 more source

Experimental research on flame propagation characteristics of coal dust combustion

Journal of Measurement Science and Instrumentation, 2021
The presence of coal dust explosions in coal mining are significant safety hazards. This study mainly explores the flame propagation of coal dust combustion so as to provide a theoretical basis for the prevention and control of coal dust explosions.
LIU Yifei, ZHANG Yun, YANG Zhenxin, LIU Xuanshen, CHEN Chengfang, BU Lingtao, XU Sen, CAO Weiguo   +7 more
doaj  

A STUDY OF FLAME PROPAGATION SPEED FOR LEAN PREMIXED FLAME WITH COMBINATION FLOW [PDF]

, 2015
In recent years, the new power sources such as electric vehicles and fuel cell vehicles are becoming general gradually, but internal combustion engines such as gasoline and diesel are still very important.
岸本 和輝
core   +1 more source

Inorganic‐Directed Charge Delocalization Channels: Boosting Uniform Charge Distribution and Rapid Na+ Transport for Solid‐State Sodium Metal Batteries

Carbon Energy, EarlyView.
This work develops a PM@PN composite solid electrolyte via inorganic‐induced organic molecular reconstruction. It constructs continuous interfacial ion superhighways, enables uniform Na+ deposition, and significantly enhances ionic conductivity and electrochemical stability for all‐solid‐state sodium metal batteries.
Jiaze Li, Rong Yang, Aoyi Jiang, Xiaobin Li, Qianwei Zhang, Xin Dong, Hongyu Shang, Ying Liu, Yinglin Yan, Yunhua Xu, Jae‐Kwang Kim, Jou‐Hyeon Ahn   +11 more
wiley   +1 more source

Deciphering Polarity Effects of Polymer to Regulate Li+ Ionic Environment in Solid Polymer Electrolytes for Solid‐State Lithium Batteries

Carbon Energy, EarlyView.
We elucidate the fundamental influences of polymer polarity on Li+ ionic environments in solid polymer electrolytes by considering four critical components: Li+, FSI−, residual solvents, and polymer matrix. Beyond facilitating LiFSI dissociation and Li+ transport, our findings underscore previously overlooked roles of polymer polarity, thereby ...
Ji‐Oh Kim, Taekyun Kwon, Hyeonchul So, Seungjo Hong, Hansol Lee, Jusung Han, Sung Hyun Kwon, Jin Hong Lee   +7 more
wiley   +1 more source