Results 71 to 80 of about 196,704 (311)

DNS analysis on the correlation between local burning velocity and flame displacement speed of turbulent premixed flames

Journal of Thermal Science and Technology
The local burning velocity and flame displacement speed are the major properties of premixed flames. The local burning velocity, which is the instantaneous quantity based on the local consumption rate of the unburnt mixture, is considered to be the most ...
Kazuya TSUBOI
doaj   +1 more source

Effects of non-unity Lewis number of gas-phase species in turbulent nonpremixed sooting flames

, 2016
Turbulence statistics from two three-dimensional direct numerical simulations of planar n-heptane/air turbulent jets are compared to assess the effect of the gas-phase species diffusion model on flame dynamics and soot formation.
Pitsch, Heinz, Attili, Antonio, Bisetti, Fabrizio, Mueller, Michael E.   +3 more
core   +1 more source

Atomic Layer Deposition Processes: Versatile Platforms for Engineering ZnO‐Chitosan Biointerfaces

Advanced Healthcare Materials, EarlyView.
Vapour phase metalation (VPM), multiplied pulsed vapour phase infiltration (MPI), and O2 plasma‑enhanced atomic layer deposition (PEALD) tailor Zn–chitosan (Zn‑CS) films. PEALD improves wettability and biocompatibility. MPI enhances semiconductor behavior. Antiseptic selectivity: VPM → E. coli; MPI → H. pylori.
Mabel Moreno, Anjana Devi, David Zanders, Miryam Arredondo, Davide Mariotti, Ruairi McGlynn, Sindy Devis, Simón Guerrero, Eglantina Benavente, Matias Alegría, Yusser Olguin, Lorena Lobos‐Gonzalez, Kevin Guzmán, Elizabeth Rivas‐Yañez, Paula Solar, Valentin Cepus, Michael Krause, Luis Velásquez   +17 more
wiley   +1 more source

Combustion of lycopodium particles in random media: Analytical model and predicting the effect of heat loss and Lewis number

, 2019
In this paper, a new analytical model is proposed to model combustion of micro organic dust particles. In contrast with previous studies, random combustion of lycopodium particles and analyze the effect of heat loss and different Lewis number on the ...
Mohammadali Harati, Mehdi Bidabadi
core   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Effects of preferential diffusion and flame stretch on FGM method for numerical simulations of ammonia/air premixed combustion

Applications in Energy and Combustion Science
Importance of the considerations of preferential diffusion and flame stretch effects in the flamelet-generated manifold (FGM) method on the prediction accuracy is investigated by two-dimensional numerical simulations of cylindrical NH3/air premixed ...
Reo Kai, Shinya Ayukawa, Kazuhiro Kinuta, Ryoichi Kurose   +3 more
doaj   +1 more source

Soret and Dufour Effects on Natural Convection Flow Past a Vertical Surface in a Porous Medium with Variable Viscosity

Journal of Applied Mathematics, 2012
The heat and mass transfer characteristics of natural convection about a vertical surface embedded in a saturated porous medium subject to variable viscosity are numerically analyzed, by taking into account the diffusion-thermo (Dufour) and thermal ...
M. B. K. Moorthy, K. Senthilvadivu
doaj   +1 more source

A Numerical Study of the MHD Metal Oxide Trihybrid Nanofluids (CuO−MgO−TiO2/H2O) Past a Vertically Radiative Stretching Cylinder in a Porous Medium with Suction, Soret and Dufour Effects [PDF]

EPJ Web of Conferences
The present work looks into how heat and concentration layering influence the MHD flow of a ternary hybrid nanofluid over a radiative, stretching vertical cylinder placed in a porous medium.
Bangale Vaibhav Sanjabarao, Kumar Ravindra, Kumar Deepak   +2 more
doaj   +1 more source

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

Advanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez, Alejandro Orellana‐Silla, Marta Galbiati, Efrén Navarro‐Moratalla, Luca Braglia, Sara Stolfi, José Antonio Real, Víctor Rubio‐Giménez, Sergio Tatay, Carlos Martí‐Gastaldo   +9 more
wiley   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source