Results 1 to 10 of about 721,751 (276)
Collision Strengths and Effective Collision Strengths for Allowed Transitions among the n ≤ 5 Degenerate Levels of Atomic Hydrogen [PDF]
Atoms, 2018 We report calculations of collision strengths and effective collision strengths for 26 allowed transitions among the n≤ 5 degenerate levels of atomic hydrogen for which the close-coupling (CC) and Born approximations have been used. Results are listed
Kanti M. Aggarwal +2 more
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Collision strengths and effective collision strengths for Ne-like Ge [PDF]
Canadian Journal of Physics, 2017 We have carried out a calculation of 241 levels for Ne-like Ge (Z = 36) to calculate electron impact collision strengths and effective collision strengths belonging to 1s22s22p5nl, 1s22s12p6nl (n = 3, 4, 5, 6; l = s, p, d, f, g, and h) configurations, which have been calculated by the fully relativistic flexible atomic code (FAC).
Wessameldin S Abdelaziz
exaly +4 more sources
Astrophysical Journal, 2012 We have carried out a 29-state R-matrix calculation in order to calculate collision strengths and effective collision strengths for the electron impact excitation of S III. The recently developed parallel RMATRX II suite of codes have been used, which perform the calculation in intermediate coupling.
M P Scott, C A Ramsbottom
exaly +4 more sources
Trends in collisions and traffic mortality rates in Mexico City: A comparison of six data sources. [PDF]
PLoS ONEIntroductionImproving data quality is an international recommendation to advance road safety. Mexico City has several sources of road safety data which are used interchangeably, no study has analyzed their strengths and limitations.ObjectiveWe aimed to ...
Martha Laura Herrera Ortiz +7 more
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Superstructure and Distorted-Wave Codes and Their Applications
Atoms, 2022 There have been many observations of the solar and astrophysical spectra of various ions. The diagnostics of these observations require atomic data that include energy levels, oscillator strengths, transition rates, and collision strengths.
Anand K. Bhatia
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Collision Strengths of Astrophysical Interest for Multiply Charged Ions
Atoms, 2023 The electron impact excitation and ionization processes are crucial for modeling the spectra of different astrophysical objects, from atmospheres of late-type stars to remnants of supernovae and up to the light emission from neutron star mergers, to name
Stephan Fritzsche +3 more
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Effective collision strengths for Si II [PDF]
Monthly Notices of the Royal Astronomical Society, 1989 Collision strengths are presented for electron impact excitation among the eight lowest LS states (corresponding to 15 levels including the splitting of the doublet and quartet terms) of Si II calculated using the R-matrix method. These collision strengths are used to deduce effective collision strengths, adopting a Maxwellian electron energy ...
P. L. Dufton, A. E. Kingston
openaire +2 more sources
Effective collision strengths for transitions in Fe X [PDF]
Astronomy & Astrophysics, 2003 Effective collision strengths for transitions among the lowest 97 fine-structure levels belonging to the (1s 2 2s 2 2p 6 ) 3s 2 3p 2 ,3 s3p 3 ,3 s 2 3p3d, 3p 4 ,3 s3p 2 3d and 3s 2 3d 2 configurations of Fe XIII have been calculated using the fully relativistic Dirac Atomic R-matrix Code (DARC) of Norrington & Grant (2004).
Keenan, Francis, Aggarwal, Kanti
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Stakeholder perceptions of bird-window collisions.
PLoS ONE, 2022 Bird-window collisions are a major source of human-caused avian mortality for which many mitigation and prevention options are available. However, because very little research has characterized human perspectives related to this issue, there is limited ...
Georgia J Riggs +2 more
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Quantum Collision Models: A Beginner Guide
Entropy, 2022 In recent years, quantum collision models, sometimes dubbed repeated interaction models, have gained much attention due to their simplicity and their capacity to convey ideas without resorting to technical complications typical of many approaches and ...
Stefano Cusumano
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