244 research outputs found

    SAFT-γ force field for the simulation of molecular fluids: 8. hetero-group coarse-grained models of perfluoroalkylalkanes assessed with new vapour-liquid interfacial tension data

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    The air-liquid interfacial behaviour of linear perfluoroalkylalkanes (PFAAs) is reported through a combined experimental and computer simulation study. The surface tensions of seven liquid PFAAs (perfluorobutylethane, F4H2; perfluorobutylpentane, F4H5; perfluorobutylhexane, F4H6, perfluorobutyloctane, F4H8; perfluorohexylethane, F6H2; perfluorohexylhexane, F6H6; and perfluorohexyloctane, F6H8) are experimentally determined over a wide temperature range (276 to 350 K). The corresponding surface thermodynamic properties and the critical temperatures of the studied compounds are estimated from the temperature dependence of the surface tension. Experimental density and vapour pressure data are employed to parameterize a generic heteronuclear coarse-grained intermolecular potential of the SAFT- γ family for PFAAs. The resulting force field is used in direct molecular dynamics simulations to predict with quantitative agreement the experimental tensions and to explore the conformations of the molecules in the interfacial region revealing a preferential alignment of the PFAA molecules towards the interface and an enrichment of the perfluoro-groups at the outer interface region

    Contemporary Conditions of Efficient Implementation of Inclusive Education at the University

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    The paper analyzes the conditions of introducing inclusive education at universities. The suggested classification of necessary conditions may be applied in practice for efficient inclusion at higher educational institutions. We used the methods of descriptive analysis, observation, and Pearson’s chisquared test (χ2). The research findings include the identified efficient conditions of inclusive education, such as (1) creating a column about “Inspiring stories” on the website of the educational institution; (2) conducting group psychological training for students, joint activities, and the so-called “student hour”; (3) establishing a department of distance and inclusive education; (4) developing further education courses for teachers with a focus on communication with students with disabilities and health-related conditions; (5) designing courses for tutors and assisting students with disabilities and health-related conditions to provide them with comprehensive support within the entire period of study at universities; and (6) creating online and offline courses for teachers to develop their readiness to introduce inclusive education at universities by five criteria

    Personalized patterns of teachers training in document science course subjects in a vocational pedagogical university

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    The article is focused on the study of challenging issues which occur when updating methodological-pedagogical support and applying personalized educational paths in the training of future teachers of document science course subjects for intermediate vocational education institutions, as well as according to various other programmes of students training as part of the "Vocational training (by branches)" course. The key method of the given problem research is meant to be analysis and experience summarization of vocational-oriented, academic, teaching and guiding and scientific work with the students of Russian State Vocational Pedagogical University, being taught according to principal educational programme "Document management in an organization" as part of "Vocational training (by branches)" preparation as well as learning methodological approaches for creating personalized educational paths for them. Research results: developed approaches to applying personalized educational paths in the training of students in a vocational pedagogical university; drawn-up recommendations on updating methodological-pedagogical support in the training of future teachers of document science course subjects for intermediate vocational education institutions, undertaken analysis of the possible ways of improving their training. The content of the article may prove helpful for: university faculty and universities chief executives for the improvement of the training quality of future professionals, for more effective educational process organization, for forming personalized educational paths in the training of students; for chief executives of intermediate vocational education institutions where the specialized training "Document support of management and archive science" is provided; for students being trained as part of "Vocational training (by branches)" course. © Authors

    The main approaches to the design the course «Mathematical modeling» master’s training

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    The article discusses the main ideas of the construction of the educational process of the course «Mathematical modeling» for the mastersРассматриваются основные идеи построения образовательного процесса курса «Математическое моделирование» для магистро

    The Method of Manufacturing Nonmetallic Test-Blocks on Different Sensitivity Classes

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    Nowadays in our modern world there is a vital question of quality control of details made from nonmetallic materials due to their wide spreading. Nondestructive penetrant testing is effective, and in some cases it is the only possible method of accidents prevention at high-risk sites. A brief review of check sample necessary for quality evaluation of penetrant materials is considered. There was offered a way of making agents for quality of penetrant materials testing according to different liquid penetrant testing sensibility classes

    Composition of powders produced by electrospark dispersion of metal granules in water

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    The results of experimental studies of metal powders composition produced by electrospark dispersion according to the scheme "metal electrodes - metal granule loading - distilled water" are given in the paper. With a help of X-ray diffraction analysis and other methods, it was found that chemical and phase composition of dispersion products is determined by affinity of metal to oxygen
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