Results 51 to 60 of about 317,889 (303)

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

Flame structure simulation in a methane/air coflow partially premixed burner

Revista Facultad de Ingeniería Universidad de Antioquia, 2014
The effect of the equivalence ratio on the partially premixed methane / air laminar flame structure, in a coflow atmospheric burner was simulated. Three equivalence ratios were studied (Φ=1.6, Φ=2.0, Φ=3.5) keeping constant the released energy.
Julio Rendón, Francisco Cadavid, Andrés Amell   +2 more
doaj   +1 more source

Nonlinear equation for curved stationary flames [PDF]

, 2001
A nonlinear equation describing curved stationary flames with arbitrary gas expansion $\theta = \rho_{{\rm fuel}}/\rho_{{\rm burnt}}$, subject to the Landau-Darrieus instability, is obtained in a closed form without an assumption of weak nonlinearity. It
Bychkov V. V., Frankel M. L., Joulin G., Kirill A. Kazakov, Landau L. D., Markstein G. H., Michael A. Liberman, Michelson D. M., Rahibe M., Rahibe M., Rahibe M., Sivashinsky G. I., Zel’dovich Ya. B., Zhdanov S. K.   +13 more
core   +2 more sources

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

Experimental and Numerical Study of a Two-Stage Swirl Burner

Energies, 2022
In this study, we developed the design process and optimization of structural parameters of a new low-NOx burner based on low-NOx combustion technology and the flame stabilization principle. Firstly, on the basis of the two-stage swirl burner, we applied
Jiming Lin, Haozhen Li, Yong Zhang, Jianhong Yang   +3 more
doaj   +1 more source

Premixed flames with nonbranching chain-reactions (structure and dynamics) [PDF]

, 1987
A description of the flame structure, and its response to wrinkling and unsteady perturbations, is given for a simplified multiple step reaction mechanism (representative for example of halogen-hydrogen reactions), involving a dissociation reaction, a ...
Clavin, Paul, Liñán Martínez, Amable
core   +2 more sources

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

Continuous 500-Hz OH-PLIF Measurements in a Hydrogen-Fueled Scramjet Combustor

Frontiers in Physics, 2020
In recent years, significant research attention has focused on scramjet bench-testing using optical measurement techniques to obtain significant experimental data.
Jiangbo Peng, Jiangbo Peng, Zhen Cao, Zhen Cao, Xin Yu, Xin Yu, Shunhua Yang, Yang Yu, Yang Yu, Hongyu Ren, Shunping Zhang, Guang Chang, Guang Chang, Shuang Chen, Yanhui Zhao, Biao Yan, Biao Yan, Ye Luo, Ye Luo   +18 more
doaj   +1 more source

On the Flow Structure and Dynamics of Methane and Syngas Lean Flames in a Model Gas-Turbine Combustor

Energies, 2021
The present paper compares the flow structure and flame dynamics during combustion of methane and syngas in a model gas-turbine swirl burner. The burner is based on a design by Turbomeca.
Vladimir Dulin, Leonid Chikishev, Dmitriy Sharaborin, Aleksei Lobasov, Roman Tolstoguzov, Zundi Liu, Xiaoxiang Shi, Yuyang Li, Dmitriy Markovich   +8 more
doaj   +1 more source

The influence of turbulence on the structure and propagation of enclosed flames [PDF]

, 1966
Although it has long been established that burning rates can be appreciably increased by turbulence, the actual extent of this increase and the precise mechanism involved are still far from clear.
Lefebvre, A. H., Reid, R.
core   +1 more source