نتایج جستجو برای: nitrogen diffusion
تعداد نتایج: 280451 فیلتر نتایج به سال:
Background: The objective of this work was study the influence of different nitrogen substrates on the growth and antimicrobial activity of a marine strain of Pseudoalteromonas sp. (Ps), which is an antimicrobial producer. Methods: In order to assess the effect of organic nitrogen source on a marine bacterium, culture media containing different concentrations of soy peptone, yeast extract, malt...
Operation of PEM fuel cells (PEMFC) with the dead-ended anode (DEA) leads to severe voltage transients due to accumulation of nitrogen, water vapor and liquid water in the anode channels and the gas diffusion layer (GDL). Accumulation of nitrogen causes a large voltage transient with a characteristic profile whereas the amount of water vapor in the anode is limited by the saturation pressure, a...
Intergranular stress corrosion cracking has occurred in BWR environments in non-sensitised, cold-worked austenitic stainless steel materials. The affecting parameters are so far not fully known, but deformation mechanisms may be decisive. The effect of cold deformation and nitrogen content on the deformation behaviour of austenitic stainless steels was investigated. The materials were austeniti...
This work contains a systematic study of the diffusion nitrogen in Ferrite ( α -Fe) and Austenite γ from first principles, using robust multiscale model which combines Density Functional Theory (DFT) Kinetic Monte Carlo (KMC). Both ferromagnetic BCC Fe non-magnetic FCC are considered DFT to drive model, shows strong agreement with experimental data literature. Further, quantified predictions ca...
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