S U M M A R Y A model of a ductile fault zone is incorporated into a forward 3-D earthquake model to better constrain fault-zone hydraulics. The conceptual framework of the model fault zone was chosen such that two distinct parts are recognized. The fault core, characterized by a relatively low permeability, is composed of a coseismic fault surface embedded in a visco-elastic volume that can cr...

Letpc{d) be the critical probability for percolation in Z . It is shown that lim,, _, ro 2dpc(d) = 1. The proof uses the properties of a random subgraph of an m-ary d-dimensional cube. If each edge in this cube is included with probability greater than \/2d{\ — 3/m), then, for large d, the cube will have a connected component of size cm for some c> 0. This generalizes a result of Ajtai, Komlds ...

Periodic pressure measurements made during the depletion of oil fields and virgin pressure measurements through normallyand over-pressured sequences in sedimentary basins both demonstrate that changes in pore pressure and minimum horizontal stress (σh) are coupled to one another. Pore pressure/stress coupling is predicted by poroelastic theory. Data from the North Sea (Ekofisk Field) and Texas ...

By: Moggach, SA (Moggach, Stephen A.); Bennett, TD (Bennett, Thomas D.); Cheetham, AK (Cheetham, Anthony K.) Title: The Effect of Pressure on ZIF-8: Increasing Pore Size with Pressure and the Formation of a HighPressure Phase at 1.47 GPa Source: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION Volume: 48 Issue: 38 Pages: 7087-7089 DOI: 10.1002/anie.200902643 Published: 2009 Accession Number: WOS:0002700...

The cut number S(d) of the d-cube is the minimum number of hyperplanes in R that slice, that is cut the edges while avoiding vertices, all the edges of the d-cube. The cut number problem for the hypercube of dimensions d ≥ 4 was posed by P. O’Neil more than thirty years ago [17]. The identity S(3) = 3 is easy and that of S(4) = 4 is a well-known result, see [5,6,18]. However, the conjecture of ...

If f is a binary word and d a positive integer, then the generalized Fibonacci cube Qd(f) is the graph obtained from the d-cube Qd by removing all the vertices that contain f as a factor, while the generalized Lucas cube Qd( ↽Ð f ) is the graph obtained from Qd by removing all the vertices that have a circulation containing f as a factor. The Fibonacci cube Γd and the Lucas cube Λd are the grap...