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Akademický článek

Generation of shock waves in dense plasmas by high-intensity laser pulses

Autor: Pasley John, Bush I. A., Robinson Alexander P. L., Rajeev P. P., Mondal S., Lad A. D., Ahmed S., Narayanan V., Kumar G. Ravindra, Kingham Robert J.

Publikováno v: Nukleonika, Vol 60, Iss 2, Pp 193-198 (2015)

When intense short-pulse laser beams (I > 1022 W/m2, τ < 20 ps) interact with high density plasmas, strong shock waves are launched. These shock waves may be generated by a range of processes, and the relative significance of the various mechanisms

Externí odkaz: https://doaj.org/article/d67a6c9cf51d42cb88e31d6629222c29

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Akademický článek

Uncertainties in the Analysis of Avoa for Determination of Fracture Orientation Incertitudes dans l'analyse de l'AVOA utilisée pour déterminer l'orientation des fractures

Autor: Houllevigue H., Harwood S., Rowbotham P. S., Bush I., Williamson P. R., Kendall J. M.

Publikováno v: Oil & Gas Science and Technology, Vol 53, Iss 5, Pp 621-627 (2006)

Amplitude variation with offset and azimuth (AVOA) of a P-wave reflection indicates azimuthal anisotropy in at least one of the layers surrounding the reflector. A likely cause of such anisotropy is a set of aligned vertical cracks or fractures. We p

Externí odkaz: https://doaj.org/article/cd30a8f4e6394673936baba26a39db01

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Practical Methods for Ab Initio Calculations on Thousands of Atoms

Autor: Bowler, D. R., Bush, I. J., Gillan, M. J.

We describe recent progress in developing practical ab initio methods for which the computer effort is proportional to the number of atoms: linear scaling or O(N) methods. It is shown that the locality property of the density matrix gives a general f

Externí odkaz: http://arxiv.org/abs/cond-mat/9902343