Transformation of the system for forming qualified personnel in the digital economy

At the moment, there is an active digital transformation of the practice and processes in HR management. The use of electronic means, artificial intelligence and information technology can significantly increase the efficiency of HR management. This study presents the concept and various aspects of the use of artificial intelligence in HR management. The purpose of the study is to identify the key aspects of the highly qualified stuff formation in the digital economy. The research method is a comparative and causal analysis of management decisions and steps to prepare and implement the digital HR transformation. As a result of the study, a model of the recruitment process based on artificial intelligence and a map of possible risks were obtained. The results of the study can be useful in the implementation of HR management based on artificial intelligence and information technology

Amoebas of complex hypersurfaces in statistical thermodynamics

The amoeba of a complex hypersurface is its image under a logarithmic projection. A number of properties of algebraic hypersurface amoebas are carried over to the case of transcendental hypersurfaces. We demonstrate the potential that amoebas can bring into statistical physics by considering the problem of energy distribution in a quantum thermodynamic ensemble. The spectrum ${\epsilon_k}\subset \mathbb{Z}^n$ of the ensemble is assumed to be multidimensional; this leads us to the notions of a multidimensional temperature and a vector of differential thermodynamic forms. Strictly speaking, in the paper we develop the multidimensional Darwin and Fowler method and give the description of the domain of admissible average values of energy for which the thermodynamic limit exists.Comment: 18 pages, 5 figure

Anisotropy of the magnetoresistance hysteresis in the granular superconductor Y-Ba-Cu-O at different magnetic-field and transport-current orientations

Dissipation in granular high-temperature superconductors (HTSs) during the passage of macroscopic transport current j is mainly determined by carrier tunneling through intergrain boundaries (Josephson junctions). In the presence of external magnetic field H, it is necessary to take into account the significant magnetic flux compression, which can lead to the situation when the effective field Beff in the intergrain boundaries exceeds the external field by an order of magnitude. This is observed as a wide hysteresis of the field dependence of magnetoresistance R(H). In this study, we investigate the R(H) hysteresis evolution in granular 1–2-3 HTSs in different j–H orientations. The magnetic flux compression significantly affects the magnetoresistance and its hysteresis for both perpendicular (H ⊥ j) and parallel (H ǁ j) orientations. The obtained experimental data on the R(H) hysteresis at the arbitrary angles θ = ∠H, j are explained using the approach developed for describing the magnetoresistance hysteresis in granular HTSs with regard to the magnetic flux compression and the model representations proposed by Daghero et al. [Phys. Rev. B 66(13), 11478 (2002)]. A concept of the effective field in the intergrain medium explains the well-known anisotropy of the magnetotransport properties of granular HTSs

Anisotropy of the magnetoresistive properties of granular high-temperature superconductors resulting from magnetic flux compression in the intergrain medium

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.С целью выяснения причины известной анизотропии магнитное поле (H) – транспортный ток (j) магниторезистивных свойств гранулярных высокотемпературных сверхпроводников (ВТСП) исследовано поведение гистерезисных зависимостей магнитосопротивления R(H) образца ВТСП иттриевой системы при перпендикулярной (H ⊥ j) и параллельной (H || j) конфигурации. На основании концепции эффективного поля в межгранульных границах (через которые туннелируют носители сверхпроводящего тока) проведён анализ гистерезисных зависимостей R(H). Величина параметра, характеризующего эффективную степень сжатия магнитного потока в межгранульной среде, для перпендикулярной конфигурации оказалась примерно в два раза больше, чем для параллельной. Такой подход хорошо объясняет наблюдаемую многими авторами анизотропию магниторезистивных свойств гранулярных ВТСП (включая и данные по температурным зависимостям сопротивления в области резистивного перехода)

Anisotropy of the magnetoresistive properties of granular high-temperature superconductors resulting from magnetic flux compression in the intergrain medium

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.С целью выяснения причины известной анизотропии магнитное поле (H) – транспортный ток (j) магниторезистивных свойств гранулярных высокотемпературных сверхпроводников (ВТСП) исследовано поведение гистерезисных зависимостей магнитосопротивления R(H) образца ВТСП иттриевой системы при перпендикулярной (H ⊥ j) и параллельной (H || j) конфигурации. На основании концепции эффективного поля в межгранульных границах (через которые туннелируют носители сверхпроводящего тока) проведён анализ гистерезисных зависимостей R(H). Величина параметра, характеризующего эффективную степень сжатия магнитного потока в межгранульной среде, для перпендикулярной конфигурации оказалась примерно в два раза больше, чем для параллельной. Такой подход хорошо объясняет наблюдаемую многими авторами анизотропию магниторезистивных свойств гранулярных ВТСП (включая и данные по температурным зависимостям сопротивления в области резистивного перехода)

Anisotropy of the magnetoresistance hysteresis in the granular superconductor Y-Ba-Cu-O at different magnetic-field and transport-current orientations

Dissipation in granular high-temperature superconductors (HTSs) during the passage of macroscopic transport current j is mainly determined by carrier tunneling through intergrain boundaries (Josephson junctions). In the presence of external magnetic field H, it is necessary to take into account the significant magnetic flux compression, which can lead to the situation when the effective field Beff in the intergrain boundaries exceeds the external field by an order of magnitude. This is observed as a wide hysteresis of the field dependence of magnetoresistance R(H). In this study, we investigate the R(H) hysteresis evolution in granular 1–2-3 HTSs in different j–H orientations. The magnetic flux compression significantly affects the magnetoresistance and its hysteresis for both perpendicular (H ⊥ j) and parallel (H ǁ j) orientations. The obtained experimental data on the R(H) hysteresis at the arbitrary angles θ = ∠H, j are explained using the approach developed for describing the magnetoresistance hysteresis in granular HTSs with regard to the magnetic flux compression and the model representations proposed by Daghero et al. [Phys. Rev. B 66(13), 11478 (2002)]. A concept of the effective field in the intergrain medium explains the well-known anisotropy of the magnetotransport properties of granular HTSs

ORMATION OF PHASES AND MICROSTRUCTURE OF ZnO AND TiO2 BASED CERAMIC

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала

ORMATION OF PHASES AND MICROSTRUCTURE OF ZnO AND TiO2 BASED CERAMIC

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала