Results 31 to 40 of about 48,358 (196)

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

Solid-state bonding behavior between surface-nanostructured Cu and Au: a molecular dynamics simulation

Scientific Reports, 2022
In recent years, solid-state bonding has attracted attention for various electronic packaging applications as an alternative to conventional solders. Surface-nanostructured materials enable solid-state bonding without complex surface modifications and ...
Hiroaki Tatsumi, C. R. Kao, Hiroshi Nishikawa   +2 more
doaj   +1 more source

Visualizing spatially inhomogeneous hydrogen isotope diffusion by hydrogenography

Nuclear Materials and Energy, 2023
We developed a novel, recently patented application of hydrogenography, i.e., the change of the optical properties of certain indicator materials (e.g., yttrium) when these are charged with hydrogen isotopes.
A. Manhard, U. von Toussaint, P. Sand, M. Stienecker   +3 more
doaj   +1 more source

Diffusion with preferential relocation in a confining potential

Journal of Statistical Mechanics: Theory and Experiment
Abstract We study the relaxation of a diffusive particle confined in an arbitrary external potential and subject to a non-Markovian resetting protocol. With a constant rate r, a previous time τ between the initial time and the present time t is chosen from a given probability distribution
Boyer, Denis, Evans, Martin R., Majumdar, Satya N.   +2 more
openaire   +2 more sources

Preferential sorption versus preferential permeability in pervaporation [PDF]

, 1985
Transport of liquids by pervaporation takes place by a solution—diffusion mechanism. In order to investigate the “solution part” of this transport model, preferential sorption has been compared with preferential permeability.
M.H.V. Mulder, T. Franken, Franken, T., C.A. Smolders, Smolders, C.A., Mulder, M.H.V.   +5 more
core   +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

Temperature-dependent in-situ LEIS measurement of W surface enrichment by 250 eV D sputtering of EUROFER

Nuclear Materials and Energy, 2018
Tungsten surface enrichment of EUROFER steel by 250 eV deuterium sputtering is in-situ measured using low energy He+ ion scattering spectroscopy. The samples are irradiated at various temperatures between 300 K and 800 K with a deuterium atom flux of 2 × 
H.R. Koslowski, S.R. Bhattacharyya, P. Hansen, Ch. Linsmeier, M. Rasiński, P. Ström   +5 more
doaj   +1 more source

Oxidation of Au/Ag films by oxygen plasma: phase separation and generation of nanoporosity

Beilstein Journal of Nanotechnology, 2020
The oxidation of Au/Ag alloy thin films using radio-frequency oxygen plasma was studied in this work. It was demonstrated that there is a phase separation occurring between silver and gold.
Abdel-Aziz El Mel, Said A. Mansour, Mujaheed Pasha, Atef Zekri, Janarthanan Ponraj, Akshath Shetty, Yousef Haik   +6 more
doaj   +1 more source

Numerical Investigation on the Flame Characteristics of Lean Premixed Methane Flame Piloted with Rich Premixed Flame

Energies
The introduction of the pilot flame can stabilize the lean premixed flame and promote its industrial application. However, the interaction mechanism between the pilot and main flames is complicated.
Lili Zhang, Yongzhang Cui, Pengfei Yin, Wenlong Mao, Pengzhao Zhang   +4 more
doaj   +1 more source

Condensability sieving porous coordination polymer membranes for preferential permeation of C1–C4 alkanes over H2

Advanced Membranes, 2022
Refinery gas contains abundant H2 and a small amount of C1–C4 hydrocarbons. Here, we propose a condensability sieving strategy to realize preferential permeation of hydrocarbons over H2 by developing halogen-induced porous coordination polymer (PCP ...
Xuemeng Jia, De Ao, Zibo Yang, Zhihua Qiao, Yuxiu Sun, Michael D. Guiver, Chongli Zhong   +6 more
doaj   +1 more source