On the multidisciplinary approach to determination of an integral earthquake precursor

A physical-mathematical model and approaches to the measurement of the integral earthquake precursor proposed in the form of a theoretical scheme are developed by authors in previous papers. This model can probably reduce the acuteness of contradictions which often take place between precursors of different physical nature when a multidisciplinary...

alekseev_2.pdf10.68 MB

Physical-mathematical simulationin design of technological processes

The present paper is an attempt to develop a technology of fertilizer production with optimal output of nutrients (humates, macro- and microelements) on the basis of physical-mathematical simulation using vibroaction. An empirical formula relating the basic technological parameters, such as the frequency of vibroaction, time and temperature of the process,...

alekseev_yu.pdf2.36 MB

An inverse problem of electromagnetoelasticity: simulteneous determination of elastic and electromagnetic parameters and the unknown source of elastic oscillations.

This paper describes a numerical method for the solution to the inverse problem for the equations of electromagnetoelasticity. We consider the case when electromagnetic waves are generated by elastic deformations. At the same time, we neglect the reverse influence of the electromagnetic field on the elastic oscillations.

We focus our...

avdeev.pdf5.71 MB

Estimation of physical properties of bottom sedimentary deposits using seismic data

In this paper, a technique for estimating diverse physical properties of bottom deposits is discussed. The methodology is based on the evaluation of reflection coefficients of stratigraphic boundaries using the amplitudes of bottom and multiple acoustic reflectors by the so-called quotient method in combination with the regression equations of Hamilton....

bushenkov.pdf3.36 MB