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The article offers a new method to detect brightness edges. It requires no image pre-smoothing and forms a contour image with minimum number of short lines. It is an analogue and, at the same time, an alternative to the widely known Canny border detection method. It differs from it by the method of calculating partial derivatives and by the choice of thresholds in the automatic mode. The processing time of one frame in the proposed method is 3 times less than in the Canny method.

The research of magneto-optical properties has been conducted for the “Nanocomposite-bismuth telluride” (Co40Fe40B20)33.9(SiO2)66.1/[Te3Bi2] multilayer system at various thicknesses of each layer type. We report an enormous enhancement of magneto-optical (MO) response in this system. Besides, a good correlation between thickness dependences of transversal Kerr effect (TKE) and magneto-transport properties has been established. Such correlation was related to peculiarities of the interface forming process at the ferromagnetic (FM) granule boundaries. Moreover, this amplification of magneto-optical response is largest among the other spacer layers, such as Si, Cu, and C, therefore a comparison between them has been plotted.

The authors examine existing and proposed criteria for optimizing gamma spectrometry which have been used in optimal methods for routine multielement analysis of soils and plants by means of 14 MeV neutrons. Optimizing an activation-analysis method amounts to examining a function (optimization criterion) dependent on controlled parameters. The authors considered a mixture of three radionuclides with different half-lives as regards the behavior of the given optimization criteria for one-element analysis in relation to the cooling time.