Results 71 to 80 of about 447,130 (281)
Modelling and Simulation in Engineering, 2021 In this paper, we use an analysis function for gas diffusion known as the Research Institute for Applied Mechanics, Kyushu University, Computational Prediction of Airflow over Complex Terrain (RIAM-COMPACT), which was developed for complex terrain, in ...
Takanori Uchida, Ryo Araya
doaj +1 more source
Gas Diffusivity in the Forest Humus Layer
Soil Science, 2019 While several diffusivity models have been developed for mineral soils, there are few data for the forest humus layers that overlie, and are distinct from, the mineral soil. We measured soil gas diffusivity of the organic layer of spruce and beech stands.
Maier, Martin, Lang, Verena
openaire +2 more sources
Characteristics Of Large Diffusion Flames Burning In A Vitiated Atmosphere [PDF]
, 1991 Experiments concerning properties of large diffusion flames burning steadily in a vitiated atmosphere under conditions similar to those which may arise in a room fire are described. The effects of vitiation on the products of combustion and flame lengths,
Kubota, T. +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim +4 more
wiley +1 more source
Energies, 2022 A one-dimensional transient non-isothermal model was developed to study the two-phase flow phenomenon in a polymer electrolyte membrane fuel cell. The model focused on the phase change between vapor and liquid water, and the transport of oxygen, hydrogen,
Dapeng Gong +3 more
doaj +1 more source
Passivation of metal nanopowders obtained by electric explosion of semiconductors [PDF]
, 2007 The influence of composition and gas flow rate at passivation on content of unoxidized metal, particle size and temperature on the metal nanopowder layer obtained by the method of semiconductor electric explosion has been studied.
Lerner, М. I. +2 more
core
CO
, 2016 Results for mass transfer in a rotating spiral device are presented here for absorption of carbon dioxide from nitrogen carrier gas using mixtures of diethanolamine (DEA) and water.
Ahmed A. Ayash +27 more
core +1 more source
Advanced Engineering Materials, EarlyView.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
Energies, 2010 Most of the voltage losses of proton exchange membrane fuel cells (PEMFC) are due to the sluggish kinetics of oxygen reduction on the cathode and the low oxygen diffusion rate inside the flooded cathode.
Der-Sheng Chan, Kan-Lin Hsueh
doaj +1 more source
Liquid-Water Interactions with Gas-Diffusion-Layer Surfaces [PDF]
Journal of The Electrochemical Society, 2014 Understanding dynamic liquid-water uptake and removal in gas-diffusion layers (GDLs) is essential to improve the performanceof polymer-electrolyte fuel cells and related electrochemical technologies. In this work, GDL properties such as breakthroughpressure, droplet adhesion force, and detachment velocity are measured experimentally for commonly used ...
Santamaria AD +3 more
openaire +2 more sources