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A process is described for the simultaneous removal of H2S and ammonia from gaseous streams containing other acid and basic gases. The process comprises closed loop scrubbing of the gaseous stream… (More)

Introduction. Summary of atomic and molecular R-matrix theory. Applications: Electron-atom scattering. Electron-ion scattering. Electron-molecule scattering H^T2, O^T2, HCl. Photoionization.… (More)

Photoexcitation and photoionization processes are examined for ground and excited terms of Fe I, Fe II, Fe III and Fe IV. An LS coupling R-matrix approach is used in a seventeen target term expansion… (More)

The atomic oxygen fine structure cooling rate of thermal electrons based on new effective collision strengths for electron impact excitation of the ground-state 3P fine-structure levels in atomic… (More)

This is the first in a series of papers in which we benchmark recent atomic data available for astrophysical applications. We review various issues related to the completeness and accuracy of both… (More)

Abstract RMATRX1 is a general program to calculate atomic continuum processes using the R -matrix method, including electronatom and electron-ion scattering, and radiative processes such as… (More)

Abstract A procedure for analysing resonances in atomic and molecular collision theory is programmed, which exploits the analytic properties of R-matrix theory to obtain the energy derivative of the… (More)

- Keith A. Berrington, Philip George Burke, +4 authors Yi Yan
- 1987

For pt.I see ibid., vol.20, p.6363-78 (1987). A general description of the data requirements for opacity calculations has been given in paper I. The present paper gives a detailed description of the… (More)

Abstract Cross sections for forbidden transitions between all terms of the ground state configurations in electron scattering by atomic nitrogen and atomic oxygen are calculated using the R-matrix… (More)

Collision strengths for electron induced transitions in the beryllium-like ion Fe+22 are calculated using the intermediate coupling frame transformation (ICFT) version of the R-matrix programs. Our… (More)