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Analytica 2016
September 28-30, 2016
Volume 7, Issue 5(Suppl) J Anal Bioanal Tech 2016
ISSN: 2155-9872 JABT, an open access journal
conferenceseries .com
September 28-30, 2016 Orlando, USA
7th International Conference and Exhibition on
Analytical & Bioanalytical Techniques
Nikolay N. Grinchik, J Anal Bioanal Tech 2016, 7:5(Suppl)
Electrodynamics and Electrochemistry of Inhomogeneous (Laminated, Angular) Structures
Nikolay N. Grinchik
Heat and Mass Transfer Institute of the National Academy of Science, Belarus
The consistent physicomathematical model of propagation of an electromagnetic wave in a heterogeneous medium has
been constructed using the generalized wave equation and the Dirichlet theorem. Twelve conditions at the interfaces of
adjacent media were obtained and justified without using a surface charge and surface current in explicit form. The conditions
are fulfilled automatically in each section of the heterogeneous medium and are conjugated, which made it possible to use
through-counting schemes for calculations. For the first time the effect of concentration of “medium-frequency” waves with
a length of the order of centimetre at the fractures and wedges of domains of size 1 - 3 μm has been established. Numerical
calculations of the total electromagnetic energy on the wedges of domains were obtained. It is shown that the energy density
in the region of wedges is maximum.
The results of these calculations are of special importance for medicine, in particular, when microwaves are used in the
therapy of various diseases. For a small, on the average, permissible level of electromagnetic irradiation, the concentration,
focus of electromagnetic energy in internal angular structures of a human body (cells, membranes, neurons, interlacements of
vessels, etc) is possible.
We have constructed a consistent physicomathematical model of interaction of nonstationary electric and thermal fields
in a layered medium with allowance for mass transfer. The model is based on the methods of thermodynamics and on the
equations of an electromagnetic field and is formulated without explicit separation of the charge carriers and the charge of an
electric double layer. We have obtained the relations for the electric-field strength and the temperature, which take into account
the equality of the total currents and the energy fluxes, to describe the electric and thermal phenomena in layered media where
the thickness of the electric double layer is small compared to the dimensions of the object under study with allowance for
mass transfer.
We have modeled numerically the heating of an electrochemical cell with allowance for the influence of the electric
double layer at the metal-electrolyte interface and mass transfer. The calculation results are in satisfactory agreement with
experimental data.
Biography
Total years of work experience: researches, including investigations of transfer processes in porous media, electrolites, membranes, distributions of electromagnetic
waves in inhomogeneius (laminated, angular) structures, development of mathematical and computational models. 1972-2003 – Junior and Seniour researcher
at the A.V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus; 2003- at present time – Leading Researcher at A.V. Luikov Heat
and Mass Transfer Institute, National Academy of Sciences of Belarus; 2005 - at present time – associate professor of Mathematical Physics Chair at Belarusian
State University, Belarus. Study Course: ‘Mechanics and electrodynamics of heterogeneous media’. Member of Belarusian Physics society. Member of Supreme
Attestation Committee of Belarus from 2011. Academic awards and grants – Prizewinner of Koptug’s Award of Siberian Branch of Russian Academy of Sciences
(2013). Grinchik N. N. published more than 100 papers, has 40 inventions.