The growing complexity of industrial systems significantly increases the surface of possible cyber attacks, and therefore requires reliable methods for assessing the security of infrastructure. Modern methods of security assessment rely on working with a large amount of data, the presentation of which is often not standardized. One of these sources is the MITRE ATT&CK knowledge base, which contains information about attacking techniques in a format that allows you to interact with it programmatically. This work is aimed at solving the problem of normalizing the fields of external sources describing the attacking technique in order to increase the efficiency of working with the repository described above. The method proposed in this paper is based on the possibility of the specification of the STIX language used to describe the data presented in MITRE ATT&CK to expand and use open dictionaries. The development of the proposed method was based on data on the attacking techniques of the Enterprise matrix, as the most complete among all domains of the ATT&CK knowledge base, however, the proposed method is independent and does not depend on a specific domain.

Keywords: threat analysis, knowledge base, information security, MITRE ATT&CK, standardization

Electroretinography is a hightly informative method for diagnosing heterogeneous diseases associated with disorders of the vascular structures. This article describes the biomedical ophthalmic signal of an electroretinogram using wavelet analysis. The spectral characteristics of the signal, the time-frequency picture of the wavelet scalogram are estimated, and approaches to the automation of signal analysis using the available Python libraries are described. The description of the formation of wavelet scalograms of signals using the cwt function of the PyWT library has been formalized. The Gaussian wavelet of the 8th order is chosen as the basic function of the wavelet transform. In order to automate the analysis of wavelet scalograms, the sequence of determining the connectivity of segments using the connectedComponents function from the library of computer vision algorithms, image processing, and general-purpose numerical algorithms with open source OpenCV is described.

Keywords: electrophysiology, epr, electroretinogram, erg, wavelet analysis, decision support system, connected components, Otsu method, retinal dystrophy

The article provides a rationale for the design and technological parameters of barns, which are fundamental in their construction. Design features of the building and the principles of the organization of the maintenance of cows in them are given and described. The design and technological parameters of barns, providing optimal conditions for keeping cows with their loose housing, are noted.

Keywords: loose cowshed; cowshed; parameters; row; type; aft table; manure; stalls; efficiency

The properties of the water-soluble high-modulus silicate systems: based on alkali metal polysilicates called liquid glass and chain their transformation from lower to higher oligomers, with the subsequent formation of colloidal solutions - silica sol. The methods of preparation, properties and applications of water-soluble high-modulus silicate systems. The possibilities of their use as a binder and modifying agents for various nanostructured composite materials. The examples of promising areas of application of liquid glass and high modulus of aqueous solutions of silicates in construction and industry. In particular show the possibility of using liquid glass and aqueous solutions of silicates in the production of nanostructured silicate polymer. In space engineering for manufacturing water-destructed mandrels used in the manufacture of solid rocket motor casings and pressure vessels 'cocoon' of composite materials by winding. The application of the inorganic sol to obtain a nanocomposite ceramics and monolithic blocks of silicon oxide, which can be used in various fields of modern technology. The possibility of using silica sol as a binder for refractory ultra-lightweight shielding materials used to protect equipment from high impacts. The directions of development of the production of new acid-resistant materials and linings for protection of chemical equipment, parts and components operating in corrosive environments.

Keywords: Keywords: water glass, silicate polymer concrete, additives, silicates organic bases tetrafurfuriloksisilan, furfural alcohol, nanostructure composite materials, water-soluble silicates, silica sol, sol-gel transition, cured xerogel water-destructed mandr