Controlling amplitudes in 2.5D common‐shot migration to zero offset

Zero-offset migration

Offset is a geometrical nuisance when reflectors have dip. For this reason, we develop migration methods here and in the next chapter for forming images from hypothetical zero-offset seismic experiments. Although there is usually ample data recorded near zerooffset, we never record purely zero-offset seismic data. However, when we consider offset and dip together in chapter ?? we will encounter...

Tunable Lp Filters with Zero Offset

It is necessary to improve the analog preprocessing dynamic range. Special problem consists in minimisation of the noise and offset. The use of a tunable low-pass filter brings usually problems with increasing of the offset and drift. The survey of standard solutions of these problems is shown and new solution of this problem too. This new way consists in using crossover, which divide frequency...

Molecules controlling lymphocyte migration to the gut.

Factors controlling normal fault offset in an ideal brittle layer

We study the physical processes controlling the development and evolution of normal faults by analyzing numerical experiments of extension of an ideal two-dimensional elastic-plastic (brittle) layer floating on an inviscid fluid. The yield stress of the layer is the sum of the layer cohesion and its frictional stress. Faults are initiated by a small plastic flaw in the layer. We get finite faul...

Zero Overhead Java Thread Migration

The wide di usion of Java is partly due to its mechanisms for mobile computing. Java provides most of the functions required to implement mobile applications, essentially code mobility (i.e., dynamic class loading) and data mobility (i.e., object serialization). However, Java does not provide any mechanism for the mobility of the computation (i.e., threads migration). Several projects have addr...