Hydrogen accumulation and distribution during the saturation of a VT1-0 titanium alloy by an electrolytic method and from a gas atmosphere

The accumulation, distribution, and thermally stimulated release of hydrogen in a VT1-0 titanium alloy during electrolytic saturation and gas-phase saturation are studied. After electrolytic saturation, a 0.4-μm-thick surface layer consisting of δ hydrides with a binding energy of 108 kJ/mol forms in the alloy. The hydride dissociation after electrolytic saturation in heating occurs in the temperature range 320-370°C. After saturation from a gas atmosphere, δ hydrides with a binding energy of 102 kJ/mol form throughout the alloy volume. The dissociation of the hydrides formed during gas-phase saturation in heating occurs in the temperature range 520-530°C. A further increase in the temperature is accompanied by the transformation of titanium from the α into the β modification. At 690-720°C, the phase transformation is completed, and another hydrogen desorption peak appears in a thermally stimulated hydrogen desorption spectrum

Educational technology market analysis

Last time the educational technology market EdTech has shown significant growth, the dynamics of which exceed the growth of other markets attractive to startups. The article provides an analysis of EdTech market trends, primarily in terms of the development of promising technologies and their application for education and training, including new multimedia, VR, AR, IoT, AI, robotics, gamification, mobile learning, as well as new educational solutions: educational platforms, online educational services and applications, educational games, adaptive educational systems, educational social environments, new devices for learning, new techniques for knowledge evaluation and formative assessment, automation of learning processes, innovative techniques of functional literacy and competencies of the 21st century development, peer to peer learning (P2P), interactive educational projects and so on

QUALITY ASSESSMENT IN HIGHER EDUCATION: ARE RUSSIAN UNIVERSITIES FOCUSED ON THE EDUCATIONAL NEEDS OF STUDENTS?

The article touches on the issue of meeting the students' educational needs as a crucial point in the quality of education improvement. The main consumers of educational services are students whose perceptions of the educational quality is analyzed. According to the research the primary attention of the administration have be paid to the dissatisfaction of the consumer and only then to ensure the satisfaction. The focus on the factors causing negative evaluation and dissatisfaction of students, using tactics quick fix ("quick patch") is recommended

EFFICIENCY AND QUALITY OF UNIVERSITY'S PERFORMANCE: FACULTY OPINION

The article dwells upon the issue of the quality and efficiency of higher education and presents the results of the survey which determines the readiness degree of the University teachers and management to the effective contract introduction. The contractual relationship is to be discussion based and similar to the social contract which is possible only if the upper and lower parts of the University structure will combine their efforts and effectively cooperate. The synthetic and multi-faceted socio-economic character of efficiency makes the development of practice-oriented tools for performance management of the University a burning issue

Why Color Optical Computing

In this paper, we show that requirements that computations be fast and noise-resistant naturally lead to what we call color-based optical computing

Interval-Valued and Set-Valued Extensions of Discrete Fuzzy Logics, Belnap Logic, and Color Optical Computing

It has been recently shown that in some applications, e.g., in ship navigation near a harbor, it is convenient to use combinations of basic colors -- red, green, and blue -- to represent different fuzzy degrees. In this paper, we provide a natural explanation for the efficiency of this empirical fact: namely, we show that it is reasonable to consider discrete fuzzy logics, it is reasonable to consider their interval-valued and set-valued extensions, and that a set-valued extension of the 3-values logic is naturally equivalent to the use of color combinations