Results 11 to 20 of about 280,518 (219)

Selective Chemical Filters for VOF₃: Tailoring MgF₂ Filter Selectivity through Surface Chemistry

Surfaces, 2023
In order to synthesize chemical filters for the selective removal of volatile fluorides, commercial magnesium fluoride MgF2 with high specific surface area (HSA) was investigated.
Laurent Jouffret, Jean-Michel Hiltbrunner, Elodie Petit, Ania Selmi, Bertrand Morel, Marc Dubois   +5 more
doaj   +1 more source

The Behavior of Lewis Number in Finned Tube Cooling Coils under Highly Moist Inlet Air Conditions

International Journal of Technology, 2016
The objective of this research was to study the effects of highly moist inlet air conditions such as temperature, relative humidity, and frontal air velocity on the value of the Lewis number (Le) in the cooling and dehumidifying process of air.
Teerachai Howongsakun, Somnuk Theerakulpisut, Purimpat Sujumnongtokul, Pattayagorn Palasan   +3 more
doaj   +1 more source

A Priori Assessment of Algebraic Flame Surface Density Models in the Context of Large Eddy Simulation for Nonunity Lewis Number Flames in the Thin Reaction Zones Regime

Journal of Combustion, 2012
The performance of algebraic flame surface density (FSD) models has been assessed for flames with nonunity Lewis number (Le) in the thin reaction zones regime, using a direct numerical simulation (DNS) database of freely propagating turbulent premixed ...
Mohit Katragadda, Nilanjan Chakraborty, R. S. Cant   +2 more
doaj   +1 more source

Response characteristics of methane–air and propane–air premixed flames to sinusoidal oscillations in equivalence ratio (Effects of Lewis number and preferential diffusion)

Journal of Thermal Science and Technology
Flames propagate in mixture flows with inhomogeneous concentration distributions in practical combustors, such as gasoline direct-injection engines and gas turbine engines. Clarifying the effect of fuel-type differences on the response characteristics of
Yosuke SUENAGA, Hideki YANAOKA, Shohei SEO, Komei NIWATA   +3 more
doaj   +1 more source

A Direct Numerical Simulation Assessment of Turbulent Burning Velocity Parametrizations for Non-Unity Lewis Numbers

Energies, 2023
The predictions of turbulent burning velocity parameterizations for non-unity Lewis number flames have been assessed based on a single-step chemistry Direct Numerical Simulation (DNS) database of premixed Bunsen flames for different values of ...
Vishnu Mohan, Marco Herbert, Markus Klein, Nilanjan Chakraborty   +3 more
doaj   +1 more source

The effects of unburned-gas temperature on intrinsic instability of premixed flames at high Lewis numbers under the adiabatic and non-adiabatic conditions

Mechanical Engineering Journal, 2017
We treated numerically premixed flames at high Lewis numbers under the adiabatic and non-adiabatic conditions to elucidate the effects of unburned-gas temperature on intrinsic instability.
Thwe Thwe Aung, Toshiyuki KATSUMI, Satoshi KADOWAKI   +2 more
doaj   +1 more source

Numerical modelling of double-diffusive natural convection within an arc shaped enclosure filled with a porous medium [PDF]

Journal of Heat and Mass Transfer Research, 2014
Numerical study of double-diffusive natural convective heat transfer in a curved cavity filledwith a porous medium has been carried out in the current study. Polar system has beenselected as coordinate system.
Ariyan Zare Ghadi, Ali Haghighi Asl, Mohammad Sadegh Valipour   +2 more
doaj   +1 more source

Mathematical Modeling of Nanoparticle Cloud Combustion Incorporates the Effects of Particle Phase Change within the Reaction Zone of a Non-Premixed Combustion System Operating in a Counterflow Configuration [PDF]

Iranian Journal of Chemistry & Chemical Engineering
In this study, the multi-stage edge combustion of a particle cloud was modeled, and the effect of changing the fuel type on the change in the triple flame propagation velocity was considered.
Shayan Paknezhad, Seyed Reza Saleh, Vahid Nejati, Seyed Mohammad Javadi   +3 more
doaj   +1 more source

Loss of proton‐sensing TDAG8 increases tumor progression in mouse models of colon cancer

Molecular Oncology, EarlyView.
Loss of the pH‐sensing receptor TDAG8 accelerates colorectal cancer progression in mice. Animals lacking TDAG8 expression had increased tumor growth, DNA damage, and recruitment of tumor‐associated immune cells, including macrophages, neutrophils, and monocytes.
Ermanno Malagola, Yasmine Illi, Anna Bircher, Marijn Wilmink, Rachele F. Malagutti, Solenn Ottié, Cordelia Schuler, Pedro A. Ruiz, Cheryl de Vallière, Klaus Seuwen, Gerhard Rogler, Martin Hausmann   +11 more
wiley   +1 more source

Experimental and theoretical study of catalytic and radiative characteristics of anti-oxidation and anti-erosion coatings for high-speed aircraft

Учёные записки Казанского университета: Серия Физико-математические науки
The catalytic activity coefficient and emissivity of the surface of thin-walled oxidation- and erosion-resistant coatings for high-speed aircraft were determined experimentally and theoretically.
O. V. Tushavina
doaj   +1 more source