Results 11 to 20 of about 25,952 (244)
Clues from Ab Initio Calculations on Titanium Isotopic Fractionation in Tholeiitic and Calc-Alkaline Magma Series [PDF]
, 2021 Magmatic differentiation produces positive correlations between δ49Ti and SiO2. The equilibrium Ti isotope fractionation factors of Ti-bearing minerals are essential for understanding the mechanisms driving this isotopic fractionation.
Aarons, Sarah M. +15 more
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Nickel Isotopic Evidence for Late-Stage Accretion of Mercury-Like Differentiated Planetary Embryos [PDF]
, 2021 © 2021, The Author(s). Earth’s habitability is closely tied to its late-stage accretion, during which impactors delivered the majority of life-essential volatiles. However, the nature of these final building blocks remains poorly constrained. Nickel (Ni)
Zhu, Jian Ming +11 more
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Number-conserving approach to the pairing problem: Application to Kr and Sn isotopic chains [PDF]
, 2012 The recently proposed symmetry-conserving energy density functional approach [G. Hupin, D. Lacroix, and M. Bender, Phys. Rev. C 84, 014309 (2011)] is applied to perform variation after projection onto the good particle number using the Skyrme interaction,
Lacroix, Denis +3 more
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Laser isotope separation of 223Ra
Scientific Reports, 2023 A three-step photoionization has been theoretically studied for the laser isotope separation of 223Ra through the following photoionization scheme. $$\begin{aligned}7s^{2} {}^{1}S_{0} \left( {0.0 \;{\text{cm}}^{ - 1} } \right)\xrightarrow{{714.3185 ...
M. V. Suryanarayana
doaj +1 more source
Thermoelasticity of Hexagonal Close-Packed Iron from the Phonon Density of States [PDF]
, 2012 Iron is the main constituent in Earth’s core, along with ~5 to 10 wt% Ni and some light elements (e.g., H, C, O, Si, S). This thesis explores the vibrational thermodynamic and thermoelastic properties of pure hexagonal close-packed iron (ε-Fe), in an ...
Murphy, Caitlin Anne
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ON THE GF-VALUES FOR SOME DIATOMIC MOLECULAR SPECTRA
Odessa Astronomical Publications, 2017 In view of rich structure of the energy levels and the variety of transition types which are observable, molecules are the useful tool for investigation of physical parameters of stellar atmospheres, interstellar and circumstellar matter.
L. A. Kuznetsova, A. V. Shavrina
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Frontiers in Marine Science, 2019 Many calcifying organisms exert significant biological control over the construction and composition of biominerals which are thus generally depleted in oxygen-18 and carbon-13 relative to the isotopic ratios of abiogenic aragonite. The skeletal δ18O and
Fiorella Prada +7 more
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Trophic Diversity and Food Web Structure of Vegetated Habitats Along a Coastal Topographic Gradient
Frontiers in Marine Science, 2022 Land–sea interactions in coastal wetlands create heterogeneous vegetated habitats with regular zonation along a topographic gradient. However, it’s unclear how the trophic diversity of communities and trophic structure of food webs change along the ...
Xiaoxiao Li +7 more
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Ground-state properties of even and odd Magnesium isotopes in a symmetry-conserving approach
Physics Letters B, 2017 We present a self-consistent theory for odd nuclei with exact blocking and particle number and angular momentum projection. The demanding treatment of the pairing correlations in a variation-after-projection approach as well as the explicit consideration
Marta Borrajo, J. Luis Egido
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Materials Research Express, 2020 Two-dimensional (2D) graphene monolayer has been attached importance because of the fantastic physical properties. In this work, we conduct the atomistic simulations to evaluate the phonon behaviors in isotopically doped graphene with Sierpinski Carpet ...
Dan Han +3 more
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