784 research outputs found

    Beryllium Materials and Their Application in Energetics of Future

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    Beryllium materials are widely used in science and technology. They are of importance both for nuclear and thermonuclear energy applications. Additionally, metallic beryllium is transparent to x-ray radiation and used in the manufacture of X-ray windows and refractive x-ray lenses. SC “VNIINM” has developed beryllium materialsfor various purposes: for coating of the ITER’s first wall, for focusing and controlling X-ray radiation. Porous beryllium is of particular interest as it is an upcoming trend as a temper and neutron multiplier in blankets of thermonuclear facilities. A unique combination of X-ray optical properties also makes it possible to use porous beryllium in imaging devices in a synchrotron radiation beam (speckle suppressor). Keywords: beryllium composite, porosity, beryllium-foam, ITER, X-ray optic

    The Small-angle X-Ray Scattering Investigation of Advanced Beryllium Materials

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    The small-angle X-ray scattering (SAXS) technique allows to determine size distributions of inhomogeneities in materials and to predict their properties in Xray optics devices. A number of beryllium materials for the manufacturing of X-ray optics (refractive lenses and speckle suppressors) have been studied by the SAXS.Various composite materials based on porous beryllium have been studied. The effect of adding detonation nanodiamonds to the beryllium matrix on the scattering ability of the material is discussed. Keywords: porous beryllium, SAXS, detonation nanodiamonds, speckle-suppresso

    Quality of life - the factor of Russia success at present and in the future

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    The quality of life and human development - these concepts are substantial characteristics of contemporary approaches to the challenges of economic growth and development of society. The quality of life in contemporary quality concepts means the integrated characteristics of social-economic, political, cultural-ideologic, ecologic factors and living conditions and social status of a person. State policy in the field of regulating population’s quality of life and living standards is the basis of creating totally new work force, essential needs in material wealth, life quality and working conditions indicators. We consider the definition "quality of life" within the concept of human development to define the system of the factors influencing it. We review the modern approaches to the analysis of the quality of life. Features and aspects of quality of life are considered, its role in social and economic development of the country is analysed. The main criteria define specifics of human development and social wellbeing of the population. To evaluate the quality of life of the population we use the statistical analysis of the United Nations (UN), Human Development Index (HDI).We conclude that the level of life is an integrated social and economic category that presents the level of development of physical, immaterial and social needs which influence the quality of life and population wellbeing Index

    МОЖЛИВОСТІ ДИСТАНЦІЙНОЇ ФОРМИ ОСВІТИ У ПІСЛЯДИПЛОМНІЙ ПІДГОТОВЦІ ЛІКАРІВ ЗАГАЛЬНОЇ ПРАКТИКИ – СІМЕЙНОЇ МЕДИЦИНИ

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    The aim of the study – to describe of the problem of distance learning implementation to the process of postgraduate doctors improvement.The main body. The basic problems of distance learning implementation for students of postgraduate cycles on “General practice–family medicine” specialty are described in the article. Distance learning technics, necessary changes of organizational training principles and measures for educational process improvement are considered.Conclusion. The implementation of distance learning requires improvement and gear to conditions of primary health care functioning as well as for subjective perception of medical specialists. The basis of the distance learning on the postgraduate medical education stage is individual work with information technology usage.Мета роботи – окреслити проблеми впровадження дистанційної форми навчання у процес післядипломного удосконалення лікарів.Основна частина. У статті наведені основні проблеми впровадження дистанційної форми навчання для слухачів циклів після дипломного удосконалення за спеціальністю “Загальна практика – сімейна медицина”. Розглянуті технології дистанційного навчання, необхідні зміни організаційних принципів навчання та заходи, спрямовані на вдосконалення навчального процесу.Висновки. Впровадження дистанційного навчання вимагає вдосконалення та адаптації як до умов функціонування первинної ланки охорони здоров’я, так і до суб’єктивного сприйняття лікарями-спеціалістами. Основою дистанційного навчання на післядипломному етапі освіти лікаря є самостійна робота з використанням інформаційних технологій

    The peculiarities of formation the image of future profession by students of VOCAT

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    The article deals with the issues linked with the need to form the image of future profession by college students, based on the analysis of the requirements of the modern labor market as an important condition of their professional self-realisationВ статье рассматриваются вопросы, связанные с необходимостью формирования образа профессионального будущего студентами колледжа, на основе анализа требований современного рынка труда, как важного условия их профессиональной самореализаци

    Formation and Study of Properties of Ta and Mo Nanocluster Films

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    In this article, the results of studies of thin-film samples of nanoclusters of tantalum and molybdenum metals on the surface of silicon dioxide SiO2 /Si (001) at room temperature are presented. The chemical composition and electronic structure of the obtained nanocluster films of Ta and Mo were controlled in situ by X-ray photoelectron spectroscopy (XPS). Susceptibility to oxidation during the exposure to the atmosphere of then nanocluster films, as well as their thermal stability when heated in a vacuum to 600∘C were studied ex situ by the XPS method. The size and shape of the nanoclusters composing the film were estimated ex situ by analyzing images obtained with a scanning electron microscope. The band structure before and after oxidation was studied by measuring the bandgap of the formed Ta and Mo films by the method of electron energy loss characteristic spectroscopy (REELS). Conclusions about thermoelectric properties of the formed nanocluster films of Ta and Mo were made
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