Articles with "atomic hydrogen" as a keyword



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Atomic Hydrogen in Distant Galaxies

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Published in 2021 at "Resonance"

DOI: 10.1007/s12045-021-1192-2

Abstract: Atomic hydrogen is a fundamental constituent of galaxies, and is the primary fuel for star formation. Understanding how the atomic hydrogen content of galaxies evolves with time is thus critical to understanding galaxy evolution. In… read more here.

Keywords: hydrogen distant; distant galaxies; atomic hydrogen; hydrogen ... See more keywords
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High-efficiency adsorption for both cationic and anionic dyes using graphene nanoribbons formed by atomic-hydrogen induced single-walled carbon nanotube carpets

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Published in 2019 at "Carbon Letters"

DOI: 10.1007/s42823-019-00089-x

Abstract: Abstract Carbonaceous materials are considered as potential adsorbents for organic dyes due to their unique structures which provide high aspect ratios, hydrophobic property, large efficient surface area, and easy surface modification. In this work, graphene… read more here.

Keywords: adsorption; carbon; atomic hydrogen; graphene nanoribbons ... See more keywords
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Investigation of radial distribution of atomic hydrogen flux to the plasma facing components in steady state discharges in QUEST tokamak

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Published in 2020 at "Nuclear materials and energy"

DOI: 10.1016/j.nme.2020.100872

Abstract: Abstract To study radial distribution of hydrogen flux in peripheral plasma in long duration tokamak discharges, permeation and Langmuir reciprocate probes are used. The atomic hydrogen flux to the walls at several radial positions is… read more here.

Keywords: hydrogen flux; atomic hydrogen; hydrogen; flux ... See more keywords
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On-Demand Atomic Hydrogen Provision by Exposing Electron-Rich Cobalt Sites in an Open-Framework Structure toward Superior Electrocatalytic Nitrate Conversion to Dinitrogen.

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Published in 2021 at "Environmental science & technology"

DOI: 10.1021/acs.est.1c06091

Abstract: Electrocatalytic nitrate (NO3-) reduction to N2 via atomic hydrogen (H*) is a promising approach for advanced water treatment. However, the reduction rate and N2 selectivity are hindered by slow mass transfer and H* provision-utilization mismatch,… read more here.

Keywords: provision; electrocatalytic nitrate; atomic hydrogen; nitrate ... See more keywords
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Incorporating Oxygen Atoms in a SnS2 Atomic Layer to Simultaneously Stabilize Atomic Hydrogen and Accelerate the Generation of Hydroxyl Radicals for Water Decontamination.

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Published in 2022 at "Environmental science & technology"

DOI: 10.1021/acs.est.1c07152

Abstract: Photoelectrocatalysis (PEC) is an efficient way to address various pollutants. Surface-adsorbed atomic hydrogen (H*) and hydroxyl radicals (•OH) play a key role in the PEC process. However, the instability of H* and low production of… read more here.

Keywords: hydroxyl radicals; incorporating oxygen; atomic hydrogen; atoms sns2 ... See more keywords
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Concept model of atomic hydrogen dry developing process for photolithographic patterning

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Published in 2020 at "AIP Advances"

DOI: 10.1063/5.0027509

Abstract: Atomic hydrogen dry etching was used for microstructure fabrication. Photolithography was proposed and achieved by a dry development process using atomic hydrogen irradiation. The reaction system of poly(methyl methacrylate) mixed with molecular benzophenone was examined… read more here.

Keywords: system; atomic hydrogen; hydrogen; process ... See more keywords
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Femtosecond two-photon laser induced fluorescence imaging of atomic hydrogen in a laminar methane-air flame assisted by nanosecond repetitively pulsed discharges

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Published in 2020 at "Plasma Sources Science and Technology"

DOI: 10.1088/1361-6595/ab9234

Abstract: Sustainable and low-emission combustion is in need of novel schemes to enhance combustion efficiency and control, to meet up with new emission standards and comply with varying quality of renewable fuels. Plasma actuation is a… read more here.

Keywords: flame; fluorescence; two photon; atomic hydrogen ... See more keywords
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The atomic hydrogen content of the post-reionization Universe

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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staa604

Abstract: We present a comprehensive analysis of atomic hydrogen (H i) properties using a semi-analytical model of galaxy formation and N-body simulations covering a large cosmological volume at high resolution. We examine the H i mass function and… read more here.

Keywords: atomic hydrogen; hydrogen; hydrogen content; shot noise ... See more keywords
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Ramsey Spectroscopy of the 2S_{1/2} Hyperfine Interval in Atomic Hydrogen.

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Published in 2023 at "Physical review letters"

DOI: 10.1103/physrevlett.130.203001

Abstract: The 2S_{1/2} hyperfine interval in atomic hydrogen was measured using Ramsey spectroscopy with a thermal beam cooled to cryogenic temperatures. The measured value is 177 556 838.87(85) Hz, which represents the most precise determination of this interval to… read more here.

Keywords: hyperfine interval; spectroscopy; ramsey spectroscopy; interval atomic ... See more keywords
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Atomic hydrogen induced defect kinetics in amorphous silicon

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Published in 2017 at "Journal of Vacuum Science and Technology"

DOI: 10.1116/1.4987152

Abstract: Near-infrared evanescent-wave cavity ring-down spectroscopy (CRDS) has been applied to study the defect evolution in an amorphous silicon (a-Si:H) thin film subjected to a directed beam of atomic H with a flux of (0.4–2) ×… read more here.

Keywords: atomic hydrogen; defect kinetics; induced defect; kinetics amorphous ... See more keywords
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Thin Layer Multicycle Cathodic-Anodic Chronoamperometry of Atomic Hydrogen Injection–Extraction into Metals with Regard to the Stage of Phase Boundary Exchange

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Published in 2018 at "Russian Journal of Electrochemistry"

DOI: 10.1134/s1023193518040067

Abstract: The method of potentiostatic anodic-cathodic chronoamperometry of atomic hydrogen injection into a metal film and its subsequent extraction is theoretically discussed. By combining the methods for studying the phase-structure state and surface morphology with multicycle… read more here.

Keywords: phase; atomic hydrogen; hydrogen; phase boundary ... See more keywords