Results 41 to 50 of about 236,695 (247)

Low‐Activation Compositionally Complex Alloys for Advanced Nuclear Applications—A Review

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐activation compositionally complex alloys (LACCAs) are advanced metallic materials primarily composed of low‐activation elements, offering advantages such as rapid compliance with operational standards and safe recyclability. This review highlights their potential for extreme high‐temperature irradiation environments as structural materials for ...
Yangfan Wang   +8 more
wiley   +1 more source

Vaginal pH measured in vivo: lactobacilli determine pH and lactic acid concentration

open access: yesBMC Microbiology, 2019
Background Lactic acid (protonated lactate) has broad antimicrobial activity. Vaginal lactobacilli produce lactic acid, and are known to confer protection against reproductive tract infections when they are predominant in the vaginal microbiota.
Deirdre Elizabeth O’Hanlon   +2 more
doaj   +1 more source

Hydrogen Can Passivate Carbon Impurities in Mg-Doped GaN

open access: yesNanoscale Research Letters, 2020
The effect of unintentionally doped hydrogen on the properties of Mg-doped p-GaN samples grown via metal-organic chemical vapor deposition (MOCVD) is investigated through room temperature photoluminescence (PL) and Hall and secondary ion mass ...
Yuheng Zhang   +7 more
doaj   +1 more source

Fluoride-Releasing Restorative Materials: the Effect of a Resinous Coat on Ion Release

open access: yesActa Stomatologica Croatica, 2020
Objective: To determine the effect of two adhesive systems and a glass ionomer coating resin on fluoride release and concurrent pH changes over a period of 168 days.
Katarina Kelić   +4 more
doaj   +1 more source

Influence of a Hydrogen Addition to the Inert Gas and Subsequent Heat Treatments on the Microstructure and Mechanical Properties of Magnesium WE43 Fabricated by PBF‐LB/M

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates optimal processing conditions for the laser‐based powder bed fusion of WE43. To limit the interaction with remaining oxygen, a 3 vol% hydrogen admixture to the inert gas is investigated. Furthermore, heat treatments are investigated in the range of 250–350 °C for 48 h.
Arvid Abel   +9 more
wiley   +1 more source

Formation of vacancy-type defects and hydride introduced by irradiation in pure titanium

open access: yesJournal of Materials Research and Technology, 2023
The effect of hydrogen ion irradiation on the formation of hydride and vacancy-type defects in pure titanium was investigated by X-ray diffraction (XRD), Doppler broadening spectrum (DBS), and coincidence Doppler broadening spectrum (CDB) based on slow ...
Xiao Liu   +7 more
doaj  

Impacts of Device Geometry and Layout on Temperature Profile during Large‐Area Photonic Curing

open access: yesAdvanced Engineering Materials, EarlyView.
The study investigates how gate geometry affects peak curing temperature during photonic curing of solution‐processed indium zinc oxide thin‐film transistors. Using 3D simulations and experimental validation, it reveals that larger gate areas and smaller aspect ratios increase curing temperature and thus improve transistor performance. Findings provide
Yasir Fatha Abed   +3 more
wiley   +1 more source

Comparison of ion cyclotron wall conditioning discharges in hydrogen and helium in JET

open access: yesNuclear Materials and Energy, 2023
This paper explores the plasma parameters of helium and hydrogen Ion Cyclotron Wall Conditioning (ICWC) discharges performed in JET as part of a He/H fuelling changeover experiment. The conducted study shows that plasma with a higher density is formed in
Y. Kovtun   +31 more
doaj  

Novel anomalies for like-charged attraction between curved surfaces and formulation of a hydrogen bonding style mechanism

open access: yesAIP Advances, 2013
For the first time, the classical density functional theory (DFT) is numerically solved in three- and two-dimensional spaces for a two sphere model of electrostatic interactions between two spherical nanoscale colloids immersed in a primitive model ...
Shiqi Zhou
doaj   +1 more source

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