Physics, mathematics, and technology

2015 Issue №10

Numerical solution of elastic-acoustic problems with the help of grid-characteristic method

Abstract

Wave processes in elastic-acoustic problems are simulated with the help of grid-characteristic method, in particular, for the offshore seismic prospecting. We consider systems of water-soil-hydrocarbon-bearing layer and ice-water-soil-hydrocarbon-bearing layer

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Application of dimension reduction methods in objects homogeneity evaluation: airport network analysis

Abstract

An application of dimension reduction methods in the analysis of the phenomena of socio-economic systems by analyzing the choice of direction of development of socio-economic development is considered. In particular it is shown that the use of algorithms dimension reduction methods the probability of error when estimating posterior probabilities of belonging to the class of homogeneous objects, obtained in the result of solving the problem of discriminant analysis

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Joint modeling of elastic and acoustic waves in the Arctic

Abstract

Numerical solutions of seismic prospecting problems in the Arctic is presented. Results of numerical modeling of the explosive impact on the iceberg and earthquake impact on the oil storage are considered as well. The complete system of equations describing the state elastic body and a system of equations describing the acoustic field are solved using grid-characteristic method, the contact condition between the liquid and the solid is used on the border

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