Results 51 to 60 of about 56,968 (297)

Isotope characteristic of snow cover in Tomsk [PDF]

open access: yesE3S Web of Conferences, 2019
The snow cover has a high sorption ability that way it is a source of information in identifying anthropogenic pollution of the environment, and it also contains a climate signal.
Kalashnikova Daria   +3 more
doaj   +1 more source

Construction and testing of a low-cost device for the collection of rainfall samples destined for stable isotope analysis

open access: yesSouth African Journal of Science, 2023
Oxygen- and hydrogen-isotope ratios in rainfall provide important hydroclimatic information, yet despite a global network of rainfall isotope measurements, significant geographical gaps exist in data coverage, with only three long-term stations spanning
Jonathan A. Holmes, Jennifer M. Fitchett
doaj   +1 more source

Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface

open access: yesFEBS Open Bio, EarlyView.
HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana   +5 more
wiley   +1 more source

Modeling of H/D isotope-exchange in crystalline beryllium

open access: yesNuclear Materials and Energy, 2019
A reaction-diffusion model with surface occupation dependent desorption [D. Matveev et al., Nucl. Instr. Meth. B 430 (2018) 23–30] has been updated to handle multiple hydrogen species to simulate hydrogen/deuterium isotope-exchange experiments performed ...
D. Matveev   +4 more
doaj   +1 more source

Magnetoresistance in Pd–Co/Cu/Pd–Co trilayer under hydrogen–nitrogen gas mixture

open access: yesAIP Advances, 2023
The magnetoresistance of three Pd–Co(1)/Cu/Pd–Co(3) trilayers with different Pd–Co(3) thicknesses were evaluated in a H2–N2 gas mixture. The resistance of Pd–Co/Cu/Pd–Co increased with increasing hydrogen concentration in the gas phase, which is similar ...
Satoshi Akamaru   +2 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Probing Isotope Shifts in 103Rh and 195Pt NMR Spectra with Density Functional Theory [PDF]

open access: yes, 2013
Zero-point vibrationally averaged (rg0) structures were computed at the PBE0/SDD/6-31G* level for the [Pt35Cln37Cl5–n(H218O)]− (n = 0–5), cis-Pt35Cln37Cl4–n(H218O)(H216O) (n = 0–4), fac-[Pt35Cln37Cl3–n(H218O)(H216O)2]+ (n = 0–3), [Pt35Cln37Cl5–n(16/18OH)]
Davis, John C.   +2 more
core   +1 more source

Deuterium retention in W and W-Re alloy irradiated with high energy Fe and W ions: Effects of irradiation temperature

open access: yesNuclear Materials and Energy, 2016
Neutron irradiation to W induces defects acting as traps against hydrogen isotopes and transmutation elements such as Re and Os. To investigate synergetic effects on radiation-induced defects and Re, deuterium (D) retention in W and W–5% Re samples were ...
Y. Hatano   +11 more
doaj   +1 more source

Effect of Pressure on Hydrogen Isotope Fractionation in Methane during Methane Hydrate Formation at Temperatures Below the Freezing Point of Water

open access: yesMethane, 2023
Isotopic fractionation of methane between gas and solid hydrate phases provides data regarding hydrate-forming environments, but the effect of pressure on isotopic fractionation is not well understood.
Akihiro Hachikubo   +3 more
doaj   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

open access: yesAdvanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees   +6 more
wiley   +1 more source

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