Analysis of priority sectors of the economy in the policy of import substitution

In this paper, the authors considered the priority sectors of the economy in the policy of import substitution. Analyses were carried outthe work of foreign and domestic scientistproposed the author's interpretation of the import substitution policy, presentedthe scheme of work of the industry of import substitution in the Russian Federatio

Структурные особенности эклогитсодержащих комплексов севера Урала по гравимагнитным данным

The paper presents the results of integrated petrophysical and geophysical studies of Marunkeu and Nerkayu complexes in the north of the Urals. Qualitative interpretation of magnetic and gravitational fields is performed. It is shown that a wide range of changes in the magnetic properties of rocks of eclogite-containing complexes is not always connected with the magnetic field strength. On the contrary, contrasting density distribution in the studied complexes is recorded in the local anomalies of increased intensity in a gravitational field and is the main source of information on the deep structure of Nerkayu and Marunkeu complexes. In this article, big attention is paid to the analysis of local anomalies that have a significant impact on the nature of the anomalous gravitational field. Dedicated local anomalies of the upper and middle crust represent areas of high-density (more mafic) rocks of Nerkayu and Marunkeu complexes. The results of the qualitative interpretation of the gravity field, the similarity for the deep characteristics of eclogite complexes in local anomalies, and their connection with mapped surface objects allow suggesting a unified deep nature of Nerkayu and Marunkeu complexes.Изложены результаты комплексных петрофизических и геофизических исследований марункеуского и неркаюского комплексов севера Урала. Выполнена качественная интерпретация магнитного и гравитационного полей. Показано, что широкий диапазон изменения магнитных свойств пород эклогитсодержащих комплексов не всегда связан с напряженностью магнитного поля. Напротив, контрастное распределение плотности в изучаемых комплексах фиксируется в локальных аномалиях повышенной интенсивности в гравитационном поле и является главным источником информации о глубинном строении неркаюского и марункеуского комплексов. В статье большое внимание уделяется анализу локальных аномалий, оказывающих существенное влияние на характер аномального гравитационного поля. Выделенным локальным аномалиям верхней и средней земной коры соответствуют участки высокоплотных (более основных) пород неркаюского и марункеуского комплексов. Результаты качественной интерпретации гравитационного поля, сходство в расшифровке глубинных характеристик эклогитсодержащих комплексов по локальным аномалиям и установление связи их с картируемыми с поверхности объектами позволяют предположить единую глубинную природу образования неркаюского и марункеуского комплексов севера Урала

Arc Magmas from Slab to Eruption: The Case of Kliuchevskoy Volcano

Arc magmas are generated by a number of mantle and crustal processes. Our multidisciplinary, long-term research is aimed at deciphering these processes for a single arc volcano, Kliuchevskoy volcano in Kamchatka. Some key results of the study follow: 1) Modeling of trace element and H2O contents in melt inclusions suggests that the primary magmas originate via hydrous flux-melting of the mantle wedge at temperatures close to the dry peridotite solidus. The role of decompression melting is minor or absent at Kliuchevskoy and other arc volcanoes built on relatively thick crust. 2) Geochemistry of high-Mg olivine suggests that primary Kliuchevskoy magmas have substantial contribution from olivine-free pyroxenite (up to 30 %), which could be formed by reaction of slab melts (or supercritical fluids) with mantle wedge peridotite. 3) Parental Kliuchevskoy melts start to crystallize as deep as the Moho boundary, and the erupted magmas reflect multistage and complex processes of crystallization, magma mixing and crustal assimilation. None of the Kliuchevskoy rocks analyzed thus far represent true primary melt compositions. 4) The Kliuchevskoy Holocene eruptive history is not steady-state in terms of eruption rate and geochemistry. There are two millenial cycles with major and trace element and OSr- Nd-Pb and U-series isotope compositions of the magmas changing gradually from more to less affected by crustal (?) assimilation. The onset of the cycles correlates with periods of enhanced volcanic activity in Kamchatka, suggesting that the extent of magma-crust interaction is inversely related to magma production rate and thus magma flux from the mantle

Critical phenomena in 1D Ising model with arbitrary spin

The aim of this work was to study critical phenomena taking place in 1D Ising model with different exchange interactions signs and arbitrary spin values in a magnetic field. Exact analytical formulas for frustration fields, zero temperature magnetization and entropy at these fields are obtained. The general behavior of pair spin correlation function with the accounting of only interactions between nearest neighbors is examined. © 2018 The Authors, published by EDP Sciences.The reflorted study was carried out within the state assignment of FASO of Russia (theme «Quantum» n. 01201463332) and was funded by RFBR according to the research flroject n. 16-32-00032

The importance of professional skills competitions for the training of specialists of industrial

The training of highly qualified specialists in working professions is the main problem at present. The system of competitions of professional skill and its importance for the training of highly skilled workers is shown and analyzed. The experience of the Russian State Pedagogical University in solving the existing problem is given on the example of the competence «Welding technologies»Подготовка высококвалифицированных специалистов по рабочим профессиям – основная проблема в настоящее время. Показана и проанализирована система конкурсов профессионального мастерства и ее значение для подготовки высококвалифицированных рабочих. Приведен опыт РГППУ в решении существующей проблемы на примере компетенции «Сварочные технологии

On the Transversal Vibrations of an Axially Moving Continuum With a Time-Varying Velocity: Transient From String to Beam Behavior,”

ABSTRACT In this paper an initial-boundary value problem for a linear equation describing an axially moving stretched beam will be considered. The velocity of the beam is assumed to be timevarying. since the order of magnitude of the bending stiffness terms depends on the vibrations modes and the frequencies involved a that combination of two simplified models (a string equation and a beam with string effect equation) will be used to describe the transversal vibrations of the system accurately. Based on the calculations of the natural frequencies the regions of applicability of these models will be determined. A two time-scales perturbation method will be used to construct formal asymptotic approximations of the solutions. It will be shown that the linear axially moving "string to beam" model already has complicated dynamical behavior. NOMENCLATURE U(X, T ) the displacement of the string in vertical direction, V (T ) the time-varying belt speed, c the wave speed, X the coordinate in horizontal direction, E the modulus of elasticity, I the moment of inertia with the respect to the X (horizontal) axis, ρ the mass density of the belt, A the area of the cross section of the belt, T the time, and πL the distance between the pulleys. INTRODUCTION Axially moving systems are present in a vast class of engineering problems which arise in industrial, civil, aerospatial, mechanical, electronic, medical, and automotive applications. Serpentine belts, aerial cables, tram and train ways, oil pipelines, magnetic tapes, power transmission belts, band saw blades, chair lifts in skiing resorts, and even models of human DNA are examples of real objects where axial transport of mass can be associated with transverse vibrations. Investigating transverse vibrations of a belt system is a challenging subject which has been studied for many years by many researches and still is of interest today (see references for a recent overview). In the classical analysis of axially moving continua the vibrations are usually classified into two types, i.e. whether it is of a string-like type or of a beam-like type, depending on the bending stiffness of the belt. If the bending stiffness can be neglected then the system is classified as string (wave)-like, otherwise it is classified as beam-like. The transverse vibrations of a belt system (with time-varying velocity V (t)) can be modelled mathematically as

INFORMATION ABOUT THE QUALITY OF FUR PRODUCTS

there has been less illegal business, but it has not completely disappeared, as well as the pros and cons of introducing this labeling system for its participants.В данной статье раскрывается понятие маркировки меховых изделий. Рассматриваются виды нанесения маркировки на меховые изделия. Делается вывод, что с появлением обязательной маркировки меховых изделий стало меньше нелегального бизнеса, но окончательно он не исчез, а также о плюсах и минус введения данной системы маркировки для её участников

Опыт палинологических исследований в нефтяной геологии

The authors present the directions for palynological research: detailed (zonal) palynostratigraphy for clarifying the age and correlation of reservoirs; palynological facial analysis for reconstruct the position of the ancient coastline; determination of the degree of catagenesis of organic matter using the palynomorphs color index for assessing the oil and gas generation potential of terrigenous sediments of the Perm region.Авторы представили направления палинологических исследований: детальная (зональная) палиностратиграфия для уточнения возраста и корреляции продуктивных пластов; палинофациальный анализ для реконструкции положения древней береговой линии; определение степени катагенеза органического вещества по цветовому индексу палиноморф для оценки нефтегазогенерационного потенциала терригенных отложений территории Пермского края