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91.
C. B. Chapman Dale F. Cooper C. A. Debelius A. G. Pecora 《The Journal of the Operational Research Society》1985,36(9):769-778
This paper discusses a risk analysis study which considered the best way to cross a river with a large diameter gas pipeline, one possibility being a bridge carrying a large diameter oil line. About 30 ‘riskateers’ were involved, over a 3-month period, most of whom were engineers or economists with no risk analysis, O.R. or systems experience. A large number of interested parties were involved, with different perspectives. The paper stresses methodology design as an organizational vehicle, and the implications of designing problem-solving methodology in the midst of a problem-solving process. 相似文献
92.
93.
The photoionization cross section and asymmetry parameter are reported for hydrogen molecule-ion. The calculations were performed using the dipole length and dipole velocity operators in the energy range from threshold to 270 eV photon energy. The results indicate that the calculations are very sensitive to the accuracy of the bound state wavefunction, and that the velocity operator gives more accurate results. 相似文献
94.
95.
T.A. Chapman 《Topology and its Applications》1982,14(3):247-262
In this paper a boundary theorem for Hilbert cube manifolds is established,where it is required that the boundary be put on the manifold with arbitrarily small control in a given compact metric parameter space. 相似文献
96.
97.
Reaction of the sodium salts of β-keto esters 13a and 13b with the 2-cyano-tetrahydropyridines 11 and 12 afforded the 4-substituted piperidine derivatives 21–23. The structures were assigned on the basis of their 1H- and 13C-NMR spectra and by comparison with the model compounds 24–26. The stereochemistry and mechanism of the reactions are discussed. 相似文献
98.
J. Simpson M.A. Riley R.W. Laird D.J. Hartley F.G. Kondev J. Sweeney A.N. Wilson S.J. Gale M.A. Bentley A.M. Bruce R. Chapman R.M. Clark D.M. Cullen P. Fallon P.D. Forsyth S.J. Freeman P.M. Jones J.C. Lisle A.O. Macchiavelli J.F. Sharpey-Schafer A.G. Smith J.F. Smith D.M. Thompson 《The European Physical Journal A - Hadrons and Nuclei》1998,1(3):267-274
A series of new strongly coupled high-K, multi-quasiparticle structures have been observed in the light erbium transitional
nuclei, 159Er and 160Er. The interpretation of these bands is discussed within the framework of the cranked shell model. These sequences, when
taken together with the existing quasiparticle excitations, form a near complete set of low-lying, multi-quasiparticle structures
on which a coherent series of aligned angular momentum, band crossing and blocking arguments can be based. The measured B(M1)/B(E2)
ratios are compared with geometrical calculations to test the proposed configuration assignments.
Received: 19 November 1997 相似文献
99.
S. L. Harrison Dale F. Cooper C. B. Chapman 《The Journal of the Operational Research Society》1988,39(5):447-451
This paper reports a case-study investigation into the economic desirability of generating hydroelectric power from the River Stour for Canford School, Dorset, as part of a larger feasibility study, which won a 1985 Molins Design Prize. A parametric discounting approach to net present-value assessment was used to examine the economic benefits of installing a small run-of-river hydropower scheme. Sensitivity analysis was used to clarify the effects of uncertainties in the limited cost and rate data available at the feasibility stage of the project. The role of the economic analysis in relation to other aspects of the feasibility study is indicated. 相似文献
100.
Rate constants for rotational excitation of CO by collisions with He atoms computed within the infinite order sudden (IOS) approximation are compared with accurate quantum (coupled-states) and classical trajectory values. Taking the IOS energy as the initial kinetic energy for upward. 0 → J, transitions is found to overestimate the rates, especially for higher J (larger inelasticity). Taking the IOS energy as the initial energy for downward, J → 0, transitions underestimates the rates by a comparable amount. The geometric average of IOS rates computed in these two ways is found to provide accurate values. 相似文献