Solid solution decomposition and Guinier-Preston zone formation in Al-Cu alloys: A kinetic theory with anisotropic interactions

Using methods of statistical kinetic theory parametrized with first-principles interatomic interactions that include chemical and strain contributions, we investigated the kinetics of decomposition and microstructure formation in Al-Cu alloys as a function of temperature and alloy concentration. We show that the decomposition of the solid solution forming platelets of copper, known as Guinier-Preston (GP) zones, includes several stages and that the transition from GP1 to GP2 zones is determined mainly by kinetic factors. With increasing temperature, the model predicts a gradual transition from platelet-like precipitates to equiaxial ones and at intermediate temperatures both precipitate morphologies may coexist.Comment: 9 pages, 8 figure

Automation of Educational Institution Documentation

The article addresses issues related to the implementation of the competence approach in order to make the teaching process of an educational institution more efficient, analyzes the reasons for diminished efficiency of putting into practice the automated systems used for university management. The authors propose the structure of an automated system, which allows the university to create the required package of teaching documents taking into account the three-level system: administrator, supervisor of educational program, and lecturer. Designing object-oriented model in the area of a special subject requires identification of business-requirements to the system. On the basis of the model of subject area and specified business-requirements, the diagram of applying variants and the schemes of functioning is constructed. The suggested system of the automated execution of teaching documents enables to reduce error rate while carrying out and implementing it due to the integrated system of conceptions and feedback between its elements

Studies of concentration and temperature dependencies of precipitation kinetics in iron-copper alloys using kinetic monte carlo and stochastic statistical simulations

The earlier-developed ab initio model and the kinetic Monte Carlo method (KMCM) are used to simulate precipitation in a number of iron-copper alloys with different copper concentrations x and temperatures T. The same simulations are also made using the improved version of the earlier-suggested stochastic statistical method (SSM). The results obtained enable us to make a number of general conclusions about the dependencies of the decomposition kinetics in Fe-Cu alloys on x and T. We also show that the SSM describes the precipitation kinetics in a fair agreement with the KMCM, and employing the SSM in conjunction with the KMCM enables us to extend the KMC simulations to the longer evolution times. The results of simulations seem to agree with available experimental data for Fe-Cu alloys within statistical errors of simulations and the scatter of experimental results. Comparison of results of simulations to experiments for some multicomponent Fe-Cu-based alloys enables us to make certain conclusions about the influence of alloying elements in these alloys on the precipitation kinetics at different stages of evolution.Comment: 18 pages, 17 postscript figures, LaTe

Как придать импульс развитию российской экономики: приоритеты действий (предложения к Основным направлениям деятельности Правительства РФ до 2024 г.)

This report was prepared by the staff of the Institute for Economic Forecast of the Russian Academy of Sciences and the Financial University under the Government of the Russian Federation. It gives suggestions to implement priority measures to facilitate the transfer the Russian economy to the direction defined by the Decree of the President of the Russian Federation (est. May 7, 2018). The report also highlights priority directions of the economic policy, primarily in investment activity, development of the domestic market, as well as financial and organizational support for the suggested actions.В докладе, подготовленном сотрудниками Института народнохозяйственного прогнозирования РАН и Финансового университета при Правительстве Российской Федерации, представлены предложения по первоочередным мерам, способствующим переводу российской экономики на траекторию, определенную Указом Президента Российской Федерации от 07.05.2018. Выделены приоритетные направления  экономической политики, прежде всего, в инвестиционной деятельности, развитии внутреннего рынка, а также финансового и организационного обеспечения предлагаемых мер

How to Boost the Development of the Russian Economy: Priority Actions (Suggestions for the Main Activities of the State until 2024)

This report was prepared by the staff of the Institute for Economic Forecast of the Russian Academy of Sciences and the Financial University under the Government of the Russian Federation. It gives suggestions to implement priority measures to facilitate the transfer the Russian economy to the direction defined by the Decree of the President of the Russian Federation (est. May 7, 2018). The report also highlights priority directions of the economic policy, primarily in investment activity, development of the domestic market, as well as financial and organizational support for the suggested actions