Results 11 to 20 of about 721,751 (276)
Dirac R-matrix collision strengths and effective collision strengths for transitions of Ni xvii [PDF]
Astronomy & Astrophysics, 2011 Context. Electron impact excitation collision strengths are required for the analysis and interpretation of stellar observations. Aims. This calculation aims to provide fine structure effective collision strengths for the Nixvii ion using a method which includes contributions from resonances. Methods.
C. E. Hudson +3 more
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Effective collision strengths for transitions in Ni XIX [PDF]
Astronomy & Astrophysics, 2008 Aims. In this paper we report electron impact collision strengths and excitation rates for transitions among the lowest 89 levels of Ni xix. Methods. The Dirac atomic R -matrix code (darc) is adopted for the calculations of collision strengths and subsequently the effective collision strengths. Results. Collision strengths for resonance transitions
Aggarwal, K. M., Keenan, F. P.
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Radiative transition rates and collision strengths for Si II [PDF]
Astronomy & Astrophysics, 2009 6 figures, 5 tables within text, 2 electronic ...
Bautista, M A +5 more
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Electron-impact excitation of Sc ii: collision strengths and effective collision strengths for fine-structure transitions [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 Accurate fine-structure atomic data for the Fe-peak elements are essential for interpreting astronomical spectra. There is a severe paucity of data available for Sc II, highlighted by the fact that no collision strengths are readily available for this ...
M. F. R. Grieve, C. A. Ramsbottom
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Oscillator strengths and effective collision strengths for electron excitation of Mg VI [PDF]
Astronomy & Astrophysics, 2012 Aims. Electron impact excitation collision strengths and oscillator strengths for the astrophysically important lines in Mg VI are reported. Thermally averaged collision strengths are presented as a function of electron temperature for application to solar and other astrophysical plasmas.Methods.
S. S. Tayal
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Automatic collision avoidance of ships [PDF]
, 2008 One of the key elements in automatic simulation of ship manoeuvring in confined waterways is route finding and collision avoidance. This paper presents a new practical method of automatic trajectory planning and collision avoidance based on an artificial
Lee, B.S., Han, D., Xue, Y.
core +4 more sources
Communications Chemistry, 2022 Understanding the relative strengths of metal–ligand and metal–metal interactions in ligated nanoclusters is key to tailoring their properties. Here, collision-induced dissociation of two series of atomically precise metal sulfide nanoclusters provides ...
Habib Gholipour-Ranjbar +3 more
doaj +1 more source
Residual ultimate strength of a very large crude carrier considering probabilistic damage extents
International Journal of Naval Architecture and Ocean Engineering, 2014 This paper provides the prediction of ultimate longitudinal strengths of the hull girders of a very large crude carrier considering probabilistic damage extent due to collision and grounding accidents based on IMO Guidelines (2003).
Choung Joonmo +2 more
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Radiative Rates and Electron Impact Excitation Rates for Transitions in He II
Atoms, 2017 We report calculations of energy levels, radiative rates, collision strengths and effective collision strengths for transitions among the lowest 25 levels of the n ≤ 5 configurations of He II.
Kanti M. Aggarwal +3 more
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Discrepancies in Atomic Data and Suggestions for Their Resolutions
Atoms, 2017 The analysis and modelling of a range of plasmas (for example, astrophysical, laser- produced and fusion) require atomic data for a number of parameters, such as energy levels, radiative rates and electron impact excitation rates, or equivalently, the ...
Kanti M. Aggarwal
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