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The aim of this study is to design and implement the educational learning environment for international students’ studying in Ukrainian universities in the form of distance learning courses based on Moodle system. Objectives of the study is to analyze the existing approaches to constructing distance learning courses of training requirements in preparatory phase for foreigners in order to form a remote environment, experimental use of distance learning courses for foreigners in form of blended and distance learning during their preparation for entering universities in Ukraine. The object of research is the process of functioning of blended and distance learning for foreigners who plan to study in Ukrainian universities in Ukraine, Russian, Ukraine and English languages. The subject of research is the use of blended and distance learning for foreigners in organizational, scientific and educational activities of the Department of Natural Sciences of the Faculty of International Education of NTU "KhPI". In the work the analysis and systematization of research on the use of cloud-based ICT in education, research and organizational activities of the university, experimental implementation of the designed cloud-based environment for the subdivision of university using open source software. To assess the effectiveness of the use cloud-based learning environment created a separate department university planned to hold teaching experiment. In this work the analysis and systematization of use the blended and distance learning for foreign citizens in educational process was made, and the experimental introduction of advertising-course "Welcome to study!" developed on the basis of Moodle system in the distance learning courses NTU "KhPI" was fulfilled. To assess the efficiency of distance learning courses for international citizens’ preparatory phase of training according to the basic natural sciences, the pedagogical experiment will be done. Results of the study is planned to summarize the development of recommendations for the design of distance learning courses for foreigners with special courses for distance or blended learning in universities Ukraine.

This work presents the results of optimization of the compositions area of radio-absorbing ceramic. As a result of laboratory samples test, dependences "composition -property" was obtained, the choice of the most technologically advanced composition area and sintering temperature for manufacturing the radio-absorbing ceramic was substantiated. The optimal composition of the Sr-titanate ceramics is characterized by the following properties: water absorption (W = 1,3 %), dielectric permeability (ε = 115), density (ρ =4,35•10 3 kg/m 3 ).

The prospect of products' manufacturing based on Slavsonite (strontium aluminosilicate-SrAl 2 Si 2 O 8) is in the ability to combine a complex of dielectric and physical-mechanical characteristics of this material, such as radiotransparency, high strength, temperature resistance, and to have a low cost of raw materials. Slavsonite, besides the low dielectric permittivity value ε ~ 6.2…6.8, has the lowest dielectric loss tanδ ~ 0.0001 ... 0.0002 from among the crystalline phases, suitable for creating radioceramics [1]. Such materials are most often used when creating protection elements for aircraft antenna transmitters under high temperature and mechanical loads. For radiotransparent ceramic materials, low dielectric losses (tanδ < 0.001) and high stability of properties with temperature changes are typical. For example, the dielectric permittivity of sitalls does not change by more than ± 1%, and the tangent of dielectric loss increases by no more than ± 20% when the temperature changes from-60 ° to +1,200 °C [2]. The relevance of the study is creation of high-strength products of simple shape from the developed masses of radio transparent material based on the crystalline phase of Slavsonite.