Results 91 to 100 of about 13,453 (301)

Near-limit flame spread in low-speed opposed and concurrent flows over thick fuels [PDF]

open access: yes, 2015
(1) In the low-velocity flow regime considered, at a given flow velocity, the opposed flame spreads much faster than the concurrent flame. In opposed flows, the flame spread rate also depends on oxygen concentration, while the spread rate of concurrent ...
王双峰, 朱峰
core  

Self‐Seeded Nucleation of PET in a Benign Solvent Yields a High Modulus Aerogel With Ultra‐Low Thermal Conductivity

open access: yesAdvanced Materials, EarlyView.
A new benign solvent (1,3‐diphenylacetone) enables a simple, safe, and sustainable dissolution and gelation method to convert waste PET into low density, monolithic aerogels with high mechanical strength (E = 20 MPa) and remarkably low thermal conductivity (k = 21.9 to 28.9 mW/m·K).
Kira R. Baugh   +9 more
wiley   +1 more source

部分予混合雰囲気中における可燃性固体上の火炎の燃え拡がり解析 [PDF]

open access: yes, 2008
In this study, we numerically investigated downward flame spread over a thin solid fuel in partially premixed atmospheres. For simplicity, we assumed that the pyrolysis gas consists of methane and nitrogen. To consider the partially premixed atmospheres,
緒方, 佳典   +5 more
core  

Ultra‐High‐Throughput Discovery of Multifunctional Polyphenolic Coatings on Droplet Microarrays

open access: yesAdvanced Materials, EarlyView.
An ultra‐high‐throughput (UHT) combinatorial strategy enables the miniaturized synthesis and screening of ≈30 000 polyamine‐polyphenolic (PaPp) coatings using droplet microarrays (DMA). This approach reveals hundreds of previously unknown fluorescent, redox‐active, and antibacterial materials, including multifunctional, cell‐compatible surfaces ...
Vania Tanda Widyaya   +11 more
wiley   +1 more source

Effects of space size and fire location on heat transfer in flame spread over electrical wire in a small tunnel

open access: yesCase Studies in Thermal Engineering
Understanding the flame spread characteristics in tunnel is crucial for developing effective fire prevention strategies.This paper investigated the influence of two key parameters Ht and Dc on the flame spread characteristics of electrical wire in tunnel.
Xinjie Huang   +2 more
doaj   +1 more source

燃料を添加した部分予混合雰囲気中の可燃性固体の燃え拡がり [PDF]

open access: yes, 2003
Studies on downward flame spread over solid fuel are useful to understand complex two-phase non-premixed flames including fires. We investigate the flame spread in partially premixed atmospheres, which may occur under poorly ventilated conditions ...
MORI, Koichi   +7 more
core  

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

open access: yesAdvanced 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   +15 more
wiley   +1 more source

Flame spread over thin hollow cylindrical fuels in microgravity [PDF]

open access: yes, 2023
This work presents experimental study on opposed flow flame spread over thin hollow cylindrical cellulosic fuel of diameters varying from 10 mm to 49 mm in microgravity environment.
Fujita, Osamu   +3 more
core   +1 more source

Enhanced Photocatalytic H2O2 Production on Terpyridine‐Based Acrylonitrile‐Linked Covalent Organic Frameworks with Asymmetric Localized Electron Distribution

open access: yesAdvanced Materials, EarlyView.
Asymmetric localized electron distribution has been optimized in covalent organic frameworks to enhance *O2 adsorption and facilitate charge transfer, boosting photocatalytic two‐electron transfer oxygen reduction toward H2O2 production from water and air.
Qinglan Zhao   +12 more
wiley   +1 more source

Experimental Characterisation of Swirl Stabilized Annular Stratified Flames [PDF]

open access: yes, 2007
A burner for investigating lean stratified premixed flames propagating in intense isotropic turbulence has been developed. Lean pre-mixtures of methane at different equivalence ratios are divided between two concentric co-flows to obtain annular ...
Bonaldo, Alessio
core  

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