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The paper deals with the analysis of the banking system of Ukraine. It is shown that for Ukraine the frequency and depth of crisis phenomena in the banking sector are exacerbated by the raw material orientation of the economy, underdeveloped domestic market and the circulation of foreign currency (dollarization of the economy). It should be noted that in the pre-crisis during 2006-2007, excessive mortgage lending created a "bubble" in the real estate market, which, comparing its devastating effects, corresponded to this phenomenon in the real estate market in the United States. Although the crisis of 2008- 2009 demonstrated the vulnerability of the Ukrainian banking system to numerous economic and political upheavals, no significant changes in banking supervision took place to minimize systemic risks. Restoration of the banking system of Ukraine in 2015-2016 is generally in line with post-crisis trends to streamline the banking system and increase its efficiency in the world. At the same time, the weakness of the institutional environment makes it impossible to use both administrative tools and state development banks to increase productive lending in Ukraine. On the other hand, commercial banks will use refinancing loans instead of private-sector savings to lend. In this case, the probability of the need for financial support from banks increases, which will lead to a significant increase in public debt. Moreover, a system of vector autoregression models has been developed to research the impact of crisis periods on the performance of commercial banks in Ukraine. The simulation results (mainly the analysis of impulse response functions) allow concluding that interbank lending in post-crisis conditions recovers relatively rapidly (with a lag of two years). Lending to non-financial corporations and non-residents showed a decline and recovery only within four years after the crisis. Lending to the general government sector is growing every year, but at the same time loans to other resident sectors are declining. In addition, during the year after the crisis, the volume of deposits in the banking system is demonstrating a decrease. Other variables do not show any response to the crisis. [ABSTRACT FROM AUTHOR]

The traditional and most common methods for controlling the results of heat treatment of steel alloys are determination of hardness by measuring the parameters of indentation and quantitative and stereometric metallography. These methods are time-consuming in terms of control operations, which are performed according to a special methodology consisting of a visual comparison of the study results with the standard scales, followed by statistical extrapolation to the entire batch or plane of the product. The quality of such operations largely depends on the qualifications of the operators performing them. Presented in this article is the application of an automated open-circuit system of program control of multifrequency eddy current nondestructive testing as an alternative to traditional methods of control of the results of steel alloys heat treatment. It is shown that at certain parameters of programming the measurement operations there is a correspondence between the phase characteristics of the response signal of the 5th harmonic and the type of heat treatment, hardness, and microstructure arrangement in grade 40X steel samples. 28 Ref., 1 Tabl. 1, 5 Fig. [ABSTRACT FROM AUTHOR]