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Quantum calculations on the vibrational predissociation of NeBr2: Evidence for continuum resonances (2000)

Stephenson, Thomas A.

College Park, Md. : American Institute of Physics (AIP)

The Journal of Chemical Physics 112 (2000), S. 2265-2273

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ISSN: 1089-7690

Quelle: AIP Digital Archive

Thema: Physik , Chemie und Pharmazie

Notizen: Quantum mechanical calculations on the vibrational predissociation dynamics of NeBr2 in the B electronic state have been performed and the results compared with both experimental data and other computational studies. For vibrational levels with v≤20 we find that the vibrational state dependence of the predissociation lifetimes is in qualitative agreement with experimental measurements, as are the calculated Br2 fragment rotational distributions. For higher vibrational levels, the B←X excitation profiles are well represented by a sum of two Lorentzian line shapes. We attribute this result to the presence of long-lived resonances in the dissociative continuum that are reminiscent of long-lived dissociative trajectories in previous classical studies of NeBr2. © 2000 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.480791

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Digitale Medien

The impact of tactical and strategic FM automation (2000)

Lunn, S.D. ; Stephenson, P.

Bingley : Emerald

Facilities 18 (2000), S. 312-323

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ISSN: 0263-2772

Quelle: Emerald Fulltext Archive Database 1994-2005

Thema: Architektur, Bauingenieurwesen, Vermessung

Notizen: This paper promotes an overview of facilities management (FM) and the impact of information technology (IT). It opens with a definition of FM automation and a brief history of the generations of development. This is followed by key demand impacts which have both enabled and stimulated the growth of FM automation during the past and into the future. Specific attention is then given to the tactical and strategic impacts of the technology affecting the organisation within the emerging and complex business environment. Some examples are cited together with the effects of discontinuous change and the resistance to such change. Finally, a brief look at the impact of system selection is also included to assist FM organisations in their determination of automation needs within the paradigms of change, complexity and dependence.