Prestack migration is necessary before AVO analysis. Most of the present migration algorithms not only try to focus the reflections on the subsurface but also strive to preserve the amplitude for subsequent amplitude studies. A migration/inversion method developed by Lumley (1993) estimates the angle dependent reflectivity at each subsurface point by using least-squares Kirchhoff migration foll...

The decline in health insurance coverage among workers from 1979 to 1995 can be accounted for almost entirely by the fact that per capita health care spending rose much more rapidly than personal income during this time period. We simulate health insurance coverage levels for 1996–2005 under alternative assumptions concerning the rate of growth of spending. We conclude that reduction in spendin...

Software Specifications 1979 Copenhagen Winter School January 22 February 2 1979 Proceedings Find loads of the book catalogues in this site as the choice of you visiting this page. You can also join to the website book library that will show you numerous books from any types. Literature, science, politics, and many more catalogues are presented to offer you the best book to find. The book that ...

When plane-wave destruction (PWD) is implemented by implicit finite differences, the local slope is estimated by an iterative algorithm. We propose an analytical estimator of the local slope that is based on convergence analysis of the iterative algorithm. Using the analytical estimator, we design a noniterative method to estimate slopes by a three-point PWD filter. Compared with the iterative ...