In article the review of assessment methods of the energy supplied to the surface of solar panels. Need of increase in accuracy of calculation of the solar energy entering on the panel is proved due to accounting of the additional influencing factors. A technique for estimating solar energy to the surface of panels has been developed. The degree of cloudiness influence on the solar energy input for the area under consideration is identified. Comparison of results of modeling with use of the developed technique and specialized computer programs is carried out. The comparison showed satisfactory results. Modeling of incoming solar energy for the existing solar power station showed a higher quality of the developed technique compared with specialized software. The optimal angle of inclination of the solar panel is calculated and the reduction of the incoming energy is analyzed when the angle deviates from the optimal value. The application of modeling of incoming solar energy intake to obtain daily graphs for the electricity generation of a solar power station and comparing them with daily graphs of the electrical load of the consumer is considered. Conclusions by results of researches are drawn.

The use of composite materials based on metal ferrocyanides combined with natural mineral sorbents for treatment of high salinity Cs-containing liquid radioactive waste (LRW) was investigated. The study indicated that among the investigated composites, the best sorption characteristics for Cs were shown by materials based on copper ferrocyanide. Several factors affecting the removal of cesium from LRW, namely total salt content, pH and organic matter content, were also investigated. High concentrations of complexing organic matter significantly reduced the sorption capacity of ferrocyanide sorbents

It is shown that the operation of solar electric panels in the Republic of Khakassia of the Russian Federation should be carried out without power output to the grid. The scheme of connecting a solar power station to an existing building network and power station equipment were selected. A methodology for calculating the power of the inverter and solar panels was developed and applied based on the building’s electric load schedule. Electricity rates for public buildings were analyzed. The discounted payback period for the use of a solar power station in parallel with the power grid was calculated. The applicability of solar panels operating in parallel with the power grid for public buildings of the Republic of Khakassia of the Russian Federation was revealed. Conclusions are made based on research results.

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The size effect observed in TiAlNiAu/GaN ohmic contacts (OCs) makes itself evident in the dependence of their relative electrical characteristics R SH , R SK , ρ and geometrical parameter L T on the LTLM test line width Wk . The paper explores the geometry of relief (topography) irregularities and their interface conductivity, indicating the great significance of the fractal geometry for the description of the electrophysical and device characteristics. The regularities discovered can be of great practical importance in terms of OC development and optimization for micro-/nanoelectronics demands.