Science and Education a New Dimension
Iss. 262. 2021.
N. Barkáts Median nerve suppression by hypertrophied palmaris longus muscle, a rare anatomic aberration
https://doi.org/10.31174/SEND-NT2021-262IX33-01
Abstract. The palmaris longus muscle (PLM) is considered to be a phylogenetically degenerate muscle. For many authors, this may be the cause of its great variability. The loss of function in the PLM makes it an important muscle in plastic and reconstructive surgery. During a study of PLM agenesis rate in the Hungarian population, a 19-year-old male showed an unusual patterns of muscles in his forearms, which were found to be a hypertrophied PLM. The hypertrophied muscle was causing symptoms of median nerve compression.
Keywords: palmaris longus, median nerve compression, muscle hypertrophy, muscle anomaly.
N. Barkáts Median nerve suppression by hypertrophied palmaris longus muscle, a rare anatomic aberration
O. A Kotovenko, O. Yu. Miroshnychenko The prognostic diagnostics role in the organizational management of environmental rational use nature processes
https://doi.org/10.31174/SEND-NT2021-262IX33-02
Abstract. The paper considers and substantiates the possibility of using prognostic functional diagnostics in the system of organizational management of environmental rational use nature processes in regional ecosystems. Based on the system approach, the structure and method of building a diagnostic system as a subsystem in the general system of organizational management of nature management in the region are determined. The proposed approach will allow not only to diagnose the emergence of pre-crisis and crisis situations in the ecosystem components and identify their genesis, but also to prevent the crisis situations development in regional ecosystems.
Keywords: prognostic diagnostics, organizational management, rational nature management, regional ecosystem.
O. A Kotovenko, O. Yu. Miroshnychenko The prognostic diagnostics role in the organizational management of environmental rational use nature processes
O. Mitsa, J. Holovács, S. Beregszaszi, N. Barkáts, G. Kopcha-Goryachkina, M. Sychov Investigation of the influence of the error of the parameters of the layers of illuminating optical filters on the stability of their spectral characteristics
https://doi.org/10.31174/SEND-NT2021-262IX33-03
Abstract. In the article it describes the application of the Monte Carlo method to study the stability of the spectral characteristics of different types of anti-reflective filters based on films with low (L) and high (H) refractive indexes. For description of an error during deposition of films was accepted a normal distribution law. For broadband filters S-2L2H..2HL2H type it was shown that the spectral characteristics are the most sensitive to errors in the refractive index of components with low refractive index.
Keywords: multilayer optical coatings, Monte Carlo method, transmittance, broadband filters, stability of spectral characteristics.
O. Mitsa, J. Holovács, S. Beregszaszi, N. Barkáts, G. Kopcha-Goryachkina, M. Sychov Investigation of the influence of the error of the parameters of the layers of illuminating optical filters on the stability of their spectral characteristics
Ig. Іv. Chychura, S. V. Kutchak, Iv. Iv. Chychura Physical bases of fiber-optic temperature sensors development with chalcogenide vitreous semiconductors sensors
https://doi.org/10.31174/SEND-NT2021-262IX33-04
Abstract. A method of manufacturing sensitive elements for fiber-optic temperature sensors from chalcogenide semiconductor has been developed. Temperature dependences of the Urbach edge of such elements were measured in the temperature range from 246 to 443 K. Based on the analysis of experimental results, a clear functional dependence of the absorption coefficient of the Urbach region as func- tion of two arguments (photon energy and temperature) for sensitive elements made from As45Se55 glass were proposed.
Keywords: fiber-optic temperature sensors, Optical transmission, Chalcogenide vitreous semiconductors.
Ig. Іv. Chychura, S. V. Kutchak, Iv. Iv. Chychura Physical bases of fiber-optic temperature sensors development with chalcogenide vitreous semiconductors sensors
M. M. Sorokina, D. G. Novikova The F ω-covering Subgroups of Finite Groups
https://doi.org/10.31174/SEND-NT2021-262IX33-05
Abstract. Only finite groups and classes of finite groups are considered. Let ω be a non-empty set of primes and F be a non-empty class of finite groups. A subgroup H of a group G is called an Fω-covering subgroup if H∈F and the property that H ≤ U ≤ G, V is a normal ω-subgroup of U with U/V ∈ F implies that U = HV. A class of groups is called a formation if it is closed under homomorph images and under subdirect products. In the article we have obtained properties of F ω-covering subgroups of a finite group G where F is an ω-local formation of finite groups.
Keywords: finite group, Fω -covering subgroup, Fω-projector, class of groups, ω-local formation.
M. M. Sorokina, D. G. Novikova The F ω-covering Subgroups of Finite Groups
Y. Onyshchenko, A. Zamulko Using a technocoenological approach to form a hierarchy of energy efficiency measures in the food industry of Ukraine
https://doi.org/10.31174/SEND-NT2021-262IX33-06
Abstract: the characteristic features of performing a rank analysis in order to monitor the energy consumption of food industry enterprises in Ukraine are revised. To simplify the selection with subsequent ranking within individual groups, it is proposed to use a technocenological approach. The advantages of the used method, for forming a list of measures on the degree of influence on the energy consumption indicators of food industry enterprises of Ukraine, is an optimal description of the predicted processes of operation of technocenosis facilities, taking into account changes that may occur in the process of production, consumption or transition to another type of product.
Keywords: food industry, energy efficiency, technocenosis, measures of influence.
Y. Onyshchenko, A. Zamulko Using a technocoenological approach to form a hierarchy of energy efficiency measures in the food industry of Ukraine
V. Shkapa, I. Zamrii, H. Vlasyk Best approximation of periodic functions in the Lebesgue spaces
https://doi.org/10.31174/SEND-NT2021-262IX33-07
Abstract. We obtain the exact order estimates of the best approximations of periodic functions that are analogues of the Bernoulli kernels in the Lebesgue spaces.
Keywords: Fourier series, Bernoulli kernel, the best approximations, (𝜓, 𝛽)-derivative, (𝜓, 𝛽)-differentiable functions.
V. Shkapa, I. Zamrii, H. Vlasyk Best approximation of periodic functions in the Lebesgue spaces
