Results 41 to 50 of about 23,949,715 (384)

Atomic Data for PN Analysis [PDF]

open access: yesSymposium - International Astronomical Union, 1997
This paper will review a selection of the work that has been published on the calculation of atomic parameters, relevant to PN, in the period since the 1992 Symposium. It will also attempt to address the accuracy of theoretical results, where possible.
openaire   +1 more source

ATOMIC DATA FOR FUSION [PDF]

open access: yesLe Journal de Physique IV, 1991
The atomic data for fusion needs are described principally from the point of view of diagnostic spectroscopy. Tables are presented of areas of interest and associated atomic data usage. These and the discussion summarise the experience and practice at the JET Joint Undertaking.
Summers, H.   +3 more
openaire   +2 more sources

Development the nuclear decay data sublibrary for fission product [PDF]

open access: yesEPJ Web of Conferences, 2020
Accurate and reliable nuclear decay data libraries are essential for calculation and design of the advanced nuclear systems. To meet the requirements of decay heat calculation, burn-up calculation, analysis neutrino spectra anomaly and the other related ...
Xiaolong Huang   +3 more
doaj   +1 more source

Atomic: an open-source software platform for multi-level corpus annotation [PDF]

open access: yes, 2014
This paper presents Atomic, an open-source platform-independent desktop application for multi-level corpus annotation. Atomic aims at providing the linguistic community with a user-friendly annotation tool and sustainable platform through its focus on ...
Bierkandt, Lennart   +4 more
core   +5 more sources

THE ABUNDANCES OF LIGHT NEUTRON-CAPTURE ELEMENTS IN PLANETARY NEBULAE. III. THE IMPACT OF NEW ATOMIC DATA ON NEBULAR SELENIUM AND KRYPTON ABUNDANCE DETERMINATIONS [PDF]

open access: yes, 2015
The detection of neutron(n)-capture elements in several planetary nebulae (PNe) has provided a new means of investigating s-process nucleosynthesis in low-mass stars.
N. Sterling   +4 more
semanticscholar   +1 more source

Atomic data for astrophysics. II. New analytic fits for photoionization cross sections of atoms and ions [PDF]

open access: yes, 1996
We present a complete set of analytic fits to the nonrelativistic photoionization cross sections for the ground states of atoms and ions of elements from H through Si, and S, Ar, Ca, and Fe.
D. Verner   +3 more
semanticscholar   +1 more source

Microscopic optical model potential based on a Dirac Brueckner Hartree Fock approach and the relevant uncertainty analysis

open access: yesEPJ Web of Conferences, 2017
A relativistic microscopic optical model potential, named CTOM, for nucleon-nucleus scattering is investigated in the framework of Dirac-Brueckner-Hartree-Fock approach.
Xu Ruirui   +7 more
doaj   +1 more source

ATOMIC DATA FOR ZN II: IMPROVING SPECTRAL DIAGNOSTICS OF CHEMICAL EVOLUTION IN HIGH-REDSHIFT GALAXIES [PDF]

open access: yes, 2015
Damped Lyα (DLA) and sub-DLA absorbers in quasar spectra provide the most sensitive tools for measuring the element abundances of distant galaxies. The estimation of abundances from absorption lines depends sensitively on the accuracy of the atomic data ...
R. Kisielius   +5 more
semanticscholar   +1 more source

Measurement and calculation of neutron leakage spectra from slab samples of beryllium, gallium and tungsten irradiated with 14.8 MeV neutrons

open access: yesEPJ Web of Conferences, 2017
In order to make benchmark validation of the nuclear data for gallium (Ga), tungsten (W) and beryllium (Be) in existing modern evaluated nuclear data files, neutron leakage spectra in the range from 0.8 to 15 MeV from slab samples were measured by time ...
Nie Y.B.   +10 more
doaj   +1 more source

The Belgian Repository of fundamental Atomic data and Stellar Spectra (BRASS)

open access: yesProceedings of the International Astronomical Union, 2018
The Belgian Repository of fundamental Atomic data and Stellar Spectra (BRASS) aims to provide one of the largest systematic and homogeneous quality assessment to date of literature atomic data required for stellar spectroscopy.
A. Lobel   +9 more
semanticscholar   +1 more source

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