Modeling of the structural steel cyclic strength variation under dynamic loading in the long-term life region

The fatigue resistance characteristics under 108…109 cycles life duration are considered. It is emphasized that generally the fatigue curve might have four characteristic zones. Stress concentration change due to loading cycles increase is examined. The comparison of the fatigue tests results under regular and irregular loading under 108…109 cycles was carried out

Study of olivines from Omolon and Seymchan meteorites using X-ray diffraction and Mössbauer spectroscopy with a high velocity resolution

Study of olivine from Omolon and Seymchan meteorites was performed using X-ray diffraction and Mössbauer spectroscopy with a high velocity resolution. X-ray diffraction patterns were measured at room temperature while Mössbauer spectra were measured at 295 and 90 K. The orthorhombic crystal lattice parameters were evaluated for olivine from Omolon and Seymchan. These parameters appeared to be different for olivines from both meteorites. Mössbauer spectral components related to 57Fe in crystallographically non-equivalent sites M1 and M2 in both olivines were determined and its Mössbauer hyperfine parameters were evaluated. Some differences in the tendencies of temperature dependence of spectral parameters and small variations of 57Fe quadrupole splitting in both M1 and M2 sites of olivines from Omolon and Seymchan were found. On the basis of Mössbauer parameters and chemical data, the temperatures of equilibrium cation distribution were evaluated for both olivines. © 2012 American Institute of Physics

Preparation and characterization of Bi26–2xMn2xMo10O69-d and Bi26.4Mn0.6Mo10–2yMe2yO69-d(Me = V, Fe) solid solutions

Received: 06.06.2017; accepted: 23.06.2017; published: 14.07.2017.Single phase samples of bismuth molybdate, Bi26Mo10O69, doped with Mn on the bismuth sublattice and V, Fe on the molybdenum sublattice were found to crystallize in the triclinic Bi26Mo10O69 structure at low doping levels and in the monoclinic Bi26Mo10O69 structure - at higher dopant concentration. The assumption that all Mn ions have an oxidation state of +2 was confirmed by means of magnetic measurement results analysis using Curie-Weiss law. Conductivity was investigated using impedance spectroscopy. The conductivity of Bi26.4Mn0.6Mo9.6Fe0.4O69-d was 1.2*10-2 S*cm-1 at 973 K and 2.2*10-4 S*cm-1 at 623 K, and the conductivity of Bi26.4Mn0.6Mo9.2V0.8O69-d was 2.2*10-3 S*cm-1 at 973 K and 2.2*10-5 S*cm-1 at 623 K

The Motives for Corporate Identification of the Contemporary Russian University

AbstractThe paper addresses the problem of reexamining the identification of the contemporary Russian university in connection with its new corporate tendencies. We propose to see in corporatism and corporate culture of the university its value-oriented, spiritually-moral meaning that ensures ethical norms of human behavior in the network society. Seen from this perspective, corporate culture does not contradict the professional university culture, and appears to be necessary for training graduates and professionals who are capable of answering the challenges of the contemporary professional world

The role of natural languages as lingua francas in the course of human history

The article considers the use of natural rather than constructed (or artificial) languages as means of international communication in overcoming interlingual and intercultural barriers. The authors seek answers to the question whether natural languages have proved their effectiveness as tools of international communication. Another important line of research is determining the factors that have played a decisive role in the choice of some natural languages as lingua francas in the history of international relations. Finally, the authors explore the factors that have contributed to the transformation of English from one of the most widespread natural languages into the language of global communication

The linguistic situation in Sub-Saharan Africa in the postcolonial period and the problems of linguistic decolonization

The present research into the linguistic situation in the most multilingual region of the world, the Sub-Saharan Africa, pursues the goal to clear up the peculiarities of interrelations between the indigenous and European languages in this region as well as to provide a theoretical substantiation of the linguistic policies directed at ousting the European languages of the former metropoles from the most important spheres of life in the countries that achieved independence in the course of the 20th century. The relevance of the research is determined, first of all, by the fact that there is a growing threat of a loss of linguistic and cultural heritage of the planet in the period of globalization. At the same time, the factors determining the loss of linguistic and cultural diversity of the world remain insufficiently researched. In accordance with the goal of the given work, the authors have sought answers to a number of questions connected with the functioning of multilingualism in the countries to the south of the Sahara. The most important of these questions are the following: 1) what are the main reasons for the failures of the policy of linguistic radicalism directed at ousting European languages from all main spheres of activities?; 2) how important is the role of European languages in the loss of linguistic and cultural diversity in the period of the acceleration of globalization processes?; 3) why is the concept of regarding languages as means of domination and suppression by the former colonial powers erroneous in the conditions of the countries of the Sub-Saharan Africa that becam

Sustaining linguistic and cultural balance in multilingual South Africa

The present research into the linguistic situation in the Republic of South Africa, which is characterized by the legislative support of multilingualism and equality between the official languages, is relevant because of the danger of a loss of linguistic and cultural diversity in the former colonies of the African continent, most of which, on achieving independence, granted the status of official language only to the language of the former metropolis. The goal of the given article is finding out the nature of interrelations between languages and cultures in multilingual South Africa, and determining the functions which South African languages perform in various spheres of the country’s activities. In accordance with the set goal, the authors sought answers to a number of questions connected with interrelations of languages in South Africa as well as the role of English as one of the official languages. The most important of these questions are the following: 1) which of the official or unofficial South African languages performs the role of the language of common communication (lingua franca)?; 2) is the language balance in South Africa stable, and does the English language present a danger to the linguistic and cultural diversity of the country?; 3) what are the reasons for the difficulties connected with realizing in South Africa the policies of the equality of the official languages

Teaching and learning English as the global language in the education systems of the globalized world

The article considers the problems caused by the educational paradigm shift as a result of the English language acquiring the status of the global language in the process of globalization. The authors argue that the transformation of English into the language of worldwide communication calls forth a revision of the traditional approach to teaching foreign languages. English as the global lingua franca could no longer be treated as a foreign language. This demands a reorganization of language education based on a transition to multilingual teaching and learning in which English language teaching is envisioned not as traditional teaching of one of the national variants of English, which leads to acquiring the corresponding dominant cultures, but as teaching English as the language of world communication used for overcoming interlingual and intercultural barriers in the globalizing world