1. Complex dielectric permittivity of disperse heterogeneous systems and their components L.M. Atroshenko, N.N. Gorobets, L.P. Safronova complex dielectric permittivity, disperse system Vestnik KhNU №712 Pages. 816
The relationship between complex dielectric permittivity of twocomponent disperse system, its components' volume shares and dielectric permittivity has been obtained. The method for computation of volume shares and dielectric permittivity of water solution hydrated inclusions is suggested
2. Method of finding permittivity, volume characteristics and hydratation of components of water solutions L.M. Atroshenko, N.N. Gorobets, L.P. Safronova dielectric permittivity, bound water, hydration, specific volume, density Vestnik KhNU №712 Pages. 1720
A method for calculation of permittivity of bound water, hydration of substances, volume shares and specific volumes of water solution components, based on data of measurements of the complex permittivity and solution densities, was suggested
3. Radiation of electromagnetic waves by the system of transverse and longitudinal slots in the wide wall of rectangular waveguide S.L. Berdnik antenna array, multifrequency antenna, slot system, multimode rectangular waveguide Vestnik KhNU №712 Pages. 2529
The problem of radiation of electromagnetic waves by the doublefrequency multielement slot array on a multimode waveguide was solved by the Galerkin's method. The radiating aperture is two systems of longitudinal and transverse slots in the wide wall of the rectangular waveguide. The power and directional characteristics of such structure were investigated. Thickness of the waveguide wall, interior and exterior interactions between slots were taken into account at calculations
4. Longitudinal slot radiators cut in circular waveguide E.Y. Belogurov, V.A. Katrich, V.A. Lyaschenko circular waveguide, axial slot, electromagnetic waves, radiation, slot antennas Vestnik KhNU №712 Pages. 3741
Using method of magnetomotive forces investigations of behaviors of longitudinal slots that were cut in wall of the circular waveguide were carried out. Expressions of internal selfadmittance and transfer conductance were de rived. The possibility of creation of a tapered illumination that forms radiation pattern with low side lobes on long slot cut in circular waveguide was shown
5. Features of forming patterns of planar antennas arrays A.A. Bulgakova, N.N. Gorobets, V.A. Katrich, V.A. Lyashenko planar arrays, pattern, sidelobes, radiator elements, interference maximums triangular grid Vestnik KhNU №712 Pages. 7175
Computer analysis results of an influence of a radiating aperture form of the planar array on its pattern have been presented. It is shown that there is dependence of levels of interference lobes and also near and far sidelobes of pattern in one of main positions of observation planes on number and radiators in plane which is orthogonal to main observation plane
6. Electromagnetic wave detraction on a resistive unclosed cone V.A. Doroshenko, O.G. Litvinova diffraction, resistive, longitudinal slots, an integral transform, analytical solutions Vestnik KhNU №712 Pages. 9599
Problem of harmonic electromagnetic wave diffraction on a resistive cone with longitudinal slots is considered. The boundary problem solution uses the KontorovichLebedev integral transform and a semiinversion method. Analytical solutions are obtained for the cone with a lot of narrow slots and reactive impedance. Impedance and longitudinal slots effects on scattering field structure is studied
7. EXCITATION OF AN UNCLOSED CONE PLACED AT AN IMPEDANCE PLANE V.A. Doroshenko, O.G. Litvinova, A.V. Sova excitation, an impedance plane, cone, longitudinal slots, analytical solutions Vestnik KhNU №756 Pages. 4246
By using the approach that is based on applying the Kontorovichlebedev integral transforms method and a semiinversion method an excitation boundary problem for a cone with periodical longitudinal slots provided that cone placed at an impedance plane is investigated. It is showed that the problem under consideration is equivalent to solving a system of linear algebraic equations for Fourier coefficients of electromagnetic field components. Analytical solutions are obtained for a semi transparent cone and special plane impedance. Impedance plane effects are studied
8. Features of the forest radio emissi L.M. Atroshenko, K.P. Gaikovich, N.N. Gorobets, V.N. Gorobets radio emission, a forest Vestnik KhNU №806 Pages. 813
Dielectric permeability of sheet plates of deciduous breeds of trees, dependence of the level of own wood signal from its projective covering, temperature distinctions, diffraction of radiowaves and their plural reflections in a crone of trees are investigated.
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9. Mode basis method for open dielectric waveguide A. Butrym, M Legenkiy mode basis method; open waveguide, eigenmode Vestnik KhNU №806 Pages. 4447
The Mode Basis Method construction for the rectangular waveguide with the dielectric insertion when one of the walls of the waveguide is removed to the infinity is considered. Spectrum division into the discrete (surface waves) and continuous parts is analyzed. The range of the continuous change of the spectrum parameter, the presence of the accumulation point and the finite numbers of the discrete modes is revealed. The formulae of the field expansion over the eigenmode of the structure are obtained.
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10. Structure and the contents of the hypertext databaseof problems of remote sounding of the ground from space L.M.Atroshenko, N.N.Gorobets, L.P.Safronova, S.A.Smirnov рroblems of remote sensing, a database Vestnik KhNU №834 Pages. 4251
The principle of construction and filling of a hypertext database of problems of remote sensing of the Earth from Space including more 4000 problems RSE are described. The approach to an optimum choice of a sensor control is illustrated by the examples of use of active and passive sounding in a radiorange
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11. Near electromagnetic field of combined waveguideslot radiators in matter S.L. Berdnik, V.A. Katrich, M.V. Nesterenko, S.V. Pshenichnaya rectangular waveguide, waveguideslot radiator, material medium, hyperthermia, Galerkin's method Vestnik KhNU №834 Pages. 8588
The problem about the electromagnetic waves radiation into the homogeneous isotropic medium by the system of combined waveguideslot radiators in the broad wall of a rectangular waveguide has been solved in a rigorous selfconsistent formulation. The spatial distribution of the near field intensity in the halfinfinite material medium with the electrophysical parameters, corresponding to some man's tissues, has been investigated
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12. Features of radiation defect formation in kdp crystals under different kinds of irradiation A.N. Levchenko KDP single crystal, UV, ionizing irradiation, radiation centers, ESR Vestnik KhNU №834 Pages. 9599
Formation processes of different types of radiation paramagnetic centers in potassium dihydrogen phosphate (KDP) single crystals under ultraviolet (UV), gamma, electron, neutron and proton kinds of irradiation have been investigated with the help of electron spin resonance (ESR) method. The dose dependencies of the relative concentration of the impurity electron centers containing arsenic ions and holelike centers with the hole localized on the porbit of oxygen ion have been measured. The comparison of the effects of the different kinds of irradiation on the radiation paramagnetic defect formation processes has been carried out
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13. Inner partial mutual admittance of two overlopping longitudinal slots in a rectangular waveguide with dielectric layer parallel to narrow walls A.A.Lyakhovsky, L.P.Yatsuk, A.F.Lyakhovsky , layer, dielectric, slot, admittance, scattering parameters Vestnik KhNU №853 Pages. 2227
The expression for the partial inner mutual admittance of two longitudinal slots overlapping along waveguide longitudinal axis is obtained. The slots are cut in a broad wall of a rectangular waveguide filled with threelayered dielectric. The excitation problem is solved with the modified eigen waves method. As eigen waves of the LE and LM modes are chosen. The field in the source region includes the potential functions as well. Dependences of inner mutual admittance and scattering parameters on distance between two slots and frequency are investigated. The system scattering parameters calculated are in a good agreement with experimental data
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14. Paramagnetic properties of ASO2" free radical in irradiated KDP single crystals A.N. Levchenko KDP single crystal, ionizing irradiation, free radicals, EPR, spin Hamiltonian Vestnik KhNU №853 Pages. 8487
The electron paramagnetic resonance (EPR) spectra of AsO_{2}^{2} free radical in potassium dihydrogen phosphate (KDP) single crystals irradiated with gamma rays and electrons have been investigated. The angular dependences of the spectra have been measured. The number of magnetically inequivalent sites for the AsO_{2}^{2} in the crystal lattice of KDP has been determined. The principal values of gfactor and hyperfine structure tensor have been calculated. It is found that the radical exhibits orthorhombic symmetry. The lagest component of hyperfine tensor is in the ab crystal plane. The molecular planes of the free radicals and the ab crystal plane are mutually perpenducular. The superhyperfine structure of the spectra indicates an existence of two protons near the paramagnetic center
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15. Construction of mode basis for open dielectric structures by integral equation method Legenkiy M.N., Butrym A.Yu. mode basis method, open waveguide, eigenmode Vestnik KhNU №883 Pages. 5053
A new method based on integral equation formulation is proposed for construction of mode basis in open dielectric waveguides. Decomposition of the spectrum in such structures into discrete (surface wave) and continuous (volume wave) part is analyzed. Disp
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16. Решетчатый приемник для измерений характеристик лазерного излучения Lizogubenko S.V., Kokodiy N.G. scattering pattern, diameter of the particles, scattering, brightness of the light spot, beam intensity Vestnik KhNU №966 Pages. 912
Considered the method of defining the size of microparticles using a digitized image of the scattering. For research the optical method is used It consists that the researched substance, consisting of microparticles, is illuminated with the beam of optical radiation and then the scattering of the transmitted light is registered. After this, the digital processing of resulting scattering pattern is carried out and held the measurement of particle size in two different ways.
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17. Light propagation characteristics of optical metal dielectric coaxial nanowaveguides with complex shapes O.N. Kozina, I.S. Nefedov, L.A. Melnikov plasmonic waveguides, coaxial, noble metals, numerical simulations, nanosize. Vestnik KhNU №983 Pages. 4853
The properties of new optical waveguides with nanosize crosssection made of noble metals and glasses are described. This waveguide supports propagation of modes with unusual propagation properties. For estimation of the field localization, losses, propagation length, velocity and others characteristics the numerical simulations by FEM method has been used. Coaxial waveguide with the annular and the elliptic central rods are considered. The comparatively low value of losses has explained.
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