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This paper describes a new methodology to quantify the variation in the output of a computational fluid dynamics model for block and ash flows, when the digital elevation model (DEM) of the terrain ...

Geophysics is the application of the methods and techniques of physics in the study of the Earth. It differs from Geology in that a geologist studies rocks and structures, which can be seen, while a ...

One of the places to search for undervalued stocks is to look at insider buying. Recently, three directors have bought a non-trivial number of shares of Global Geophysical Services (GGS). The company ...