102 research outputs found

    The study of organogel formation with cyclo(leucyl-leucine) by the AFM method

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    This work was supported by the ministry of education and science of russian federation [grant №14.y26.31.0019

    Comparison of frequency-selective properties of meteor burst channel at the beginning and at the end of radio reflections from meteor trails

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    © 2017 IEEE. Meteor burst propagation is based on scattering of radio waves from the ionized trails left by fast meteor particles. One of the promising applications of meteor radio propagation is development of Meteor Synchronization Systems (MSSs) for synchronizing two remote stations with potentially subnanosecond accuracy. Frequency-selective properties of meteor burst channel limit potential accuracy of coherent multi-carrier MSS systems. To adapt to frequency distortions of timing signals, a frequency response of the channel should be appropriately considered. Continuous expansion of the meteor trail plasma due to ambipolar diffusion provokes significant changes in frequency-selective properties of the channel at the end of detection of radio reflections. This should be taken into account to assess a minimum channel bandwidth correctly. On the basis of rigorous solution to the problem of diffraction of radio waves on a meteor trail, we perform a numerical simulation of the amplitude-frequency and phase-frequency responses of meteor burst channel. A comparison of the frequency-selective properties of the channel at the beginning and at the end of the signal detection is presented for the cases of radio reflections from underdense and overdense meteor trails. The frequency responses obtained with the diffraction approach are compared with the results of the classical (approximate) theory of a radio reflection from meteor trail

    On the dynamics of nonreciprocal properties of radio reflections from ionized meteor trails

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    © 2017 IEEE. Meteor burst propagation is based on scattering of radio waves of the meter range from the ionized trails left by fast meteor particles burning at the altitudes of 80-110 km. An interaction between radio wave and the meteor trail is a complex non-stationary process, which is determined by the polarization phenomena at the transmission, propagation, diffraction on the trail, and reception of the wave. These phenomena lead to non-Absolute reciprocity of the radio link both on amplitude and carrier phase. Scattering properties of the meteor trail and associated level of channel nonreciprocity have strong time dependence due to active expansion of the trail. The knowledge of such dependence would be crucial in predicting the moment of minimum channel nonreciprocity. This is particularly important for the implementation of meteor synchronization systems of nanosecond precision and meteor key distribution systems as all these systems rely on reciprocal properties of the channel. Based on a rigorous solution to the problem of oblique diffraction of radio wave on meteor trail, we simulate typical profiles of the dynamics of amplitude and phase nonreciprocity during a single meteor radio reflection. The results on correlation between the dynamics of amplitude nonreciprocity and dynamics of phase nonreciprocity of meteor burst channel are also presented

    Projected trends and problems of education

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    The article is devoted problems of the education system in Russia in terms of integration into the world community. The article substantiates importance of forecasting technologies institutional development of the education system. Revealed the potential of modern educational institution, was to consolidate the society, preserving a unified cultural space, overcoming ethnic tensions, limitations of social inequality and other groups presented problems of modern education system for children (group of socio-image problems, the group focused priority issues, a group of content and methodology problems, a group of organizational and financial problems). The conclusions are made about the need to study these problems, their possible solutions

    The factors which keep from innovation development (on the example of the Tatarstan republic)

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    The article describes different factors which keep the region from innovation and technology development on the example of the Tatarstan Republic. When all the word is implementing innovation, there are still some reasons which prevent developing and making innovation climate as favorable as it possible. The key reasons are that the most enterprises don't take seriously the importance of the innovation and could hardly find a place for it in their strategies, lack of government support and the lack of financial support of innovation projects

    Teaching EFL in multilingual audience of the republic of tatarstan: Philological and methodological approaches

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    In article authors pay attention to a regional component teaching situation in the Russian educational system in the XXI century on the example of the English speech practice classes for the students of foreign philology department who are trained in "English and Literature", their native language being Tatar. Growth of national consciousness, accentuation of national culture and originality have served as the emergence reason in a practical language course of the regional components higher school with accurately expressed regional content. Implementation of linguistic rates regional component is provided with both philological, and pedagogical methods. In most cases, effective studying of a subject in the field of linguistics requires serial equal pro rata application of classic and innovative methods. Use of the following philological methods when training English in Tatar-speaking audience is recommended: comparisons, contextology, linguistic analysis of the art text, contrast analysis; training methods: Explanatory and illustration, research, method of data problem statement. These methods have been successfully applied on the second year in groups 10.1.-412/411 within project development of English teaching in the Republic of Tatarstan, relying on the following sub-Themes: Greetings, City, Sightseeing, Meals, Theater. During creating presentation such components of language training as work on a pronunciation, translation, creating text have been mentioned. Further use of these methods in case of creating more complex texts about the Republic of Tatarstan and implementation of the gained knowledge in the course of communication in a foreign language is possible

    Factor analysis of personal consumption in a modern welfare economy

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    © 2018 Institute of Physics Publishing. All rights reserved. The content and the structure of a personal consumption is an important factor determining the dynamics of economic and social indicators, since consumer expenditure accounts for more than half of total expenditures and determines the amount of investment into the human capital that, in the conditions of a postindustrial society, plays a decisive role in shaping sustainable economic growth rates and realizing a socially oriented national development strategy. The article analyses the peculiarities of the personal consumption process in the conditions of the modern welfare economy and its determinants, there is made an attempt to systematize and identify the interrelations between them, which will help in developing an objective forecast of GDP dynamics, on the basis of which state programs for social and economic development are formed

    Forecasting sales of leasing companies in the market of cargo vehicles

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    © Medwell Journals, 2016.Most economic models are multifactorial. Unfortunately, not all factors can be expressed in conventional units. For example, the "amount of advance payment" can be expressed in rubles, "the lease term" in days but in order to quantify the "package of documents" an expert assessment is required. The proposed methodology allows the authors to not only determine the quantitative estimation of factors but also to analyze their impact on the "sales" and then make a prediction of further development of this important economic indicator

    The stages of the innovation process

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    Issues connected with the opening of the main point of innovations as an economic category, are considered in the article. Approaches to investigations in the field of innovational activity from the point of view of foreign, Russian scientists and practical workers are analyzed. © 2014 Taylor & Francis Group

    Competitive strategies formation in high technology enterprise

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    The article describes competitive strategies formation in high technology enterprise, choosing the optimal structure of the manufacturer, effective management system for definite case situations as the formation of competitive strategies is one of the most important goals of modern Russian economy. © IDOSI Publications, 2013
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