Results 81 to 90 of about 802,767 (303)

A Graphical Method for Optimisation of Hydrogen Networks Considering Impurity Removal through Chemical Absorption

open access: yesChemical Engineering Transactions, 2018
In refineries, amine-based chemical absorption is an effective technique to treat acid impurities (i.e. H2S and CO2) in hydrogen flows. Therefore, introducing chemical absorption units for acid impurity removal in refinery hydrogen networks could enhance
Wei Li   +3 more
doaj   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

open access: yesAdvanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin   +4 more
wiley   +1 more source

Hydrogen-Driven Perpendicular Magnetic Anisotropy at the Co/Ir Interface

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi
Magnetic anisotropy at the nanoscale is a key property for developing advanced spintronic devices, information storage systems, and gas sensors. In this study, we investigate the hydrogen-assisted perpendicular magnetic anisotropy (PMA) in the Co/Ir ...
Caner Değer
doaj   +1 more source

Direct analysis of hydrogen/deuterium mixtures: A concept [PDF]

open access: yes, 1972
Fraction of deuterium/hydrogen mixture is isolated by column chromatography, ionized, and the HD+1-0 band absorption measured with conventional high-resolution infrared ...
Lord, H. C.
core   +1 more source

Nonlinear Optical Susceptibilities and Linear Absorption in Phosphorene Nanoribbons: Ab initio study [PDF]

open access: yes, 2017
Using Density Functional Theory (DFT) method we compute linear optical absorption spectra and nonlinear optical susceptibilities of hydrogen passivated armchair and zigzag Phosphorous Nanoribbons (aPNR and zPNR) as well as \alpha-phase phosphorous ...
Khoeini, Farhad   +2 more
core   +2 more sources

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie   +4 more
wiley   +1 more source

Parametric Analysis of a Novel Array-Type Hydrogen Storage Reactor with External Water-Cooled Jacket Heat Exchange

open access: yesEnergies
Hydrogen energy is a green and environmentally friendly energy source, as well as an excellent energy carrier. Hydrogen storage technology is a key factor in its commercial development.
Yang Ye   +5 more
doaj   +1 more source

Ion Beam Analysis of Hydrogen Isotope Effect at Ti-Mo Interdiffusion Interface

open access: yesYuanzineng kexue jishu, 2022
In order to explore the effect of Ti-Mo interdiffusion on metal hydrogen absorption, hydrogen absorption isotope effects at the TiMo alloy due to the interdiffusion at interface were investigated by using ion beam analysis (IBA) which is a non ...
DUAN Yiming;LI Cong;ZHANG Weiguang;WANG Meng;SHI Liqun
doaj  

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann   +3 more
wiley   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter   +5 more
wiley   +1 more source

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