Results 31 to 40 of about 3,124 (246)

Response characteristics of a stretched cylindrical diffusion flame to periodic oscillation of air flow velocity (Influences of velocity oscillation amplitude on flame response)

Nihon Kikai Gakkai ronbunshu, 2018
An experimental study investigated the frequency characteristics of a stretched cylindrical diffusion flame in response to sinusoidal air flow velocity oscillation. The flame has a convex curvature with respect to the air stream.
Yosuke SUENAGA, Hideki YANAOKA, Mamoru KIKUCHI, Shun SASAKI   +3 more
doaj   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Propagation and Extinction of a Cylindrical Premixed Flame Undergoing Equivalence Ratio Fluctuation Near the Lean Limit

Journal of Thermal Science and Technology, 2010
Experimental study was made to investigate the propagation and extinction characteristics of a stretched cylindrical flame undergoing periodic fluctuation of equivalence ratio near the lean limit.
Yosuke SUENAGA, Michio KITANO, Yoichi TAKAHASHI   +2 more
doaj   +1 more source

Flame/stretch interactions of heavy-hydrocarbon/O/N premixed flames [PDF]

37th Aerospace Sciences Meeting and Exhibit, 1999
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/76511/1/AIAA-1999-321-776 ...
Kwon, O. C., Hassan, M. I., Faeth, Gerard M.   +2 more
openaire   +1 more source

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

Investigation of differential diffusion in lean, premixed, hydrogen-enriched swirl flames

Applications in Energy and Combustion Science
Hydrogen combustion is a promising alternative to fossil fuel combustion in an effort to reduce our carbon footprint. However, hydrogen combustion is prone to thermodiffusive instabilities largely dependent on differential diffusion, a phenomenon that ...
Benjamin Francolini, Luming Fan, Ehsan Abbasi-Atibeh, Gilles Bourque, Patrizio Vena, Jeffrey Bergthorson   +5 more
doaj   +1 more source

Validation of a new level set approach in the counter flow premixed flame

Journal of Thermal Science and Technology, 2014
The flamelet model based on the concept of local flame speed S*is newly developed to describe a premixed flame with a finite thickness when defining G as the non-dimensional temperature.
Yingjie LIU, Nobuyuki OSHIMA
doaj   +1 more source

Development of laminar burning velocity measurement system in premixed flames with hydrogen-content syngas or strong oxidizer conditions in a slot burner

Case Studies in Thermal Engineering, 2022
This study presents the experimental determination of laminar burning velocity for critical premixed flames with multiple fuels or strong oxidizers. Experiments were conducted with a slot burner under methane/air, methane/nitrous oxide, and syngas (CH4 ...
Yueh-Heng Li, Jin-Wei Liang, Hung-Ju Lin
doaj   +1 more source

Low Stretched Premixed Methane-Air Flame.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1997
A numerical study of low stretched premixed methane-air flame in a counterflow configuration is conducted. The present simulation includes detailed transport properties and chemical kinetics. It is found that near the flammability limit, there is a radiation extinction branch in addition to the normal stretch extinction branch, which has been ...
Yiguang JU, Hongsheng GUO, Kaoru MARUTA
openaire   +2 more sources