The effect of thermomechanical treatment regimes on microstructure and mechanical properties of V-Me(Cr, W)-Zr-C alloys

The regularities of the formation of a heterophase structure in dispersion-strengthened vanadium V–Me(Cr, W)–Zr–C alloys are studied as a function of the regimes of their thermomechanical treatment. The regimes of treatment providing a substantial increase in the dispersity and homogeneity of spatial distribution of ZrC particles, temperature of recrystallization, and high-temperature (at T = 800°C) short-time strength are found in comparison to conventional treatment regimes

Microstructure and mechanical properties of V-4Ti-4Cr alloy as a function of the chemical heat treatment regimes

The regularities of the formation of a heterophase structure and mechanical properties of V–4Ti–4Cr alloy as a function of thermomechanical and chemical heat treatments are studied. The regimes of thermomechanical treatment which provide the formation of a heterophase structure with a homogeneous volume distribution of oxycarbonitride nanoparticles with a size of about 10 nm and an increase in the volume content and thermal stability of this phase and which provide an increase in the temperature of alloy recrystallization are developed. The formation of the heterophase structure results in a substantial (up to 70%) increase in the short-term high-temperature strength of the alloy at T = 800°C. The increase in the strength is achieved while keeping a rather high level of plasticity

Fiber Lasers Based on Dynamic Population Gratings in Rare-Earth-Doped Optical Fibers

Long dynamic population gratings (DPGs) formed in rare-earth-doped fibers have unique spectral characteristics compared to other types of fiber gratings, making them suitable for controlling the spectral composition of lasers. Depending on the type, length, and position of the DPGs in the cavities of lasers, they can be used for various purposes, ranging from the stabilization of single-frequency radiation to regular wavelength self-sweeping (WLSS) operation. Lasers based on DPGs are sources of narrow-band radiation with a fixed or sweeping generation spectrum. One of the main advantages of such lasers is the simplicity of their design, since they do not require special spectral elements or drivers for spectrum control. In this paper, we review the research progress on fiber lasers based on DPGs. The basic working principles of different types of DPGs will be introduced in the theoretical section. The operation of lasers based on absorption and gain DPGs and their practical applications will be discussed and summarized in experimental section. Finally, the main challenges for the development of such lasers will be presented

A Methodological Approach To Develop A Typology Of Contemporary Urbanization Processes For Natural Resource Regions Of Siberia

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала

Подготовка студентов экономического профиля к инновационной деятельности

An objective of this study is to develop some grounds for assessing and ensuring the readiness of economics students to participate in innovative projects. Having considered the principles of innovation economics and the reflexive-activity approach to the organization of educational process, we classified the tasks set before an economist in an innovative project and developed approaches to assess relevant competences. Using the model of assessing the individual progress of school students developed by the authors, we derived a level model of an economics student’s readiness for innovative activities. We conducted a survey and collected data that manifest three types of college student attitudes towards innovative projects in different countries. The results allow us to make assumptions on the relevant differences in the national (European, Asian, Russian) higher education systems in terms of training economists for innovative activities, and to make several suggestions for professional programmes aimed to train economists to participate in innovative projects, and, in particular, in reflective-analytical gamification of education and the procedures to create a professional language for innovation teamsЦель настоящего исследования — определить условия обеспечения подготовленности студентов экономического профиля к участию в инновационных проектах. С учетом принципов инновационной экономики и рефлексивно-деятельностного подхода к организации образовательного процесса была проведена декомпозиция задач экономиста в инновационном проекте и выработаны подходы к оцениванию соответствующих компетенций. На базе существенных характеристик авторской модели индивидуального прогресса школьников была разработана уровневая модель подготовленности студента-экономиста к инновационной деятельности. На основе анкетирования выделены три типа отношения студентов из разных стран к участию в инновационных проектах. Полученные результаты позволяют выдвинуть предположения о существенных различиях ряда национальных систем высшего образования (европейской, азиатской, российской) в части подготовки экономистов к инновационной деятельности, а также сформировать ряд требований к программированию подготовки экономистов к участию в инновационных проектах, в частности, по разработке рефлексивно-аналитической геймификации образовательного процесса и процедурам создания профессионального языка инновационной команд

Methodological Approaches to Homogenous Regional Clusters Formation for Human Capital and Quality of Life Assessment in the Yenisei Siberia Macro-Region

The article addresses the approaches to measuring and assessing the limited and specific resource for the economy – human capital – in terms of information support for the quality of life management in the regions where “Yenisei Siberia” integrated investment project is being implemented (hereinafter – “Yenisei Siberia”), given the settlement system features and its professional structure, the current level of economic development and trends in production and demography, as well as the impact of ethnocultural, natural and geographical factors. The quality of life here is considered both as a statistically measurable quantity and as an estimated, subjective category determined by human behavior. It is the peoples’ well-being, based on the quality of life interpretation in the region that supports the human capital formation and its investment behavior, as well as the basis for cutting spatial inequality in the regions through coordination and joint management of the socio-economic spatial development. Taking into account such asymmetry in the socio-economic and socio-cultural situation in the regions, the authors propose an approach to the formation of homogeneous regional clusters for measuring the level of human capital and QOL in the territories of the macro-region of the Yenisei Siberi

The effect of thermomechanical treatment regimes on microstructure and mechanical properties of V-Me(Cr, W)-Zr-C alloys

The regularities of the formation of a heterophase structure in dispersion-strengthened vanadium V–Me(Cr, W)–Zr–C alloys are studied as a function of the regimes of their thermomechanical treatment. The regimes of treatment providing a substantial increase in the dispersity and homogeneity of spatial distribution of ZrC particles, temperature of recrystallization, and high-temperature (at T = 800°C) short-time strength are found in comparison to conventional treatment regimes

Междисциплинарное исследование восприятия безопасности городской среды как фактора типологизации процессов урбанизации

The article depicts the results of a study focused on connection between factors of urban living environments and personal assessment of safety of these environments as places of potential or actual residence for young people aged 18 to 25 years. The collected data suggest that personal perception of safety for this category of respondents is not the main determinant for decision-making concerning a place of residence. The authors outline areas for further research in order to develop a model of urbanization processes for Siberian resource regions, observing Krasnoyarsk Krai as an exampleВ статье описываются результаты исследования связи факторов благоустроенности жилых городских пространств и субъективной оценки безопасности этих пространств как места потенциального или реального проживания для молодежи в возрасте от 18 до 25 лет. Данные исследования позволяют предположить, что субъективное восприятие безопасности не носит решающего характера в определении места жительства для указанной категории респондентов. Намечаются дальнейшие перспективные направления исследований для моделирования процессов урбанизации ресурсных регионов Сибири на примере Красноярского кра

Умный город. Smart-инфраструктура, сети и коммуникации

The modern development of a city with the population exceeding one million is becoming increasingly impossible in the “classical” way. The key problem of any dynamically growing megalopolis is the backlog of infrastructure development or the inability of the latter to effectively meet the needs of all the elements of the city. At the same time, the city does not have an opportunity to provide new areas of land resources for its development. Different cities and countries find their solutions to this issue, and recently the concept of “smart city” has been gaining popularity. Exemplified by the city of Krasnoyarsk, the article examines the obligatory requirements for infrastructure (mainly transport infrastructure) within the concept of “smart”. The current trends in the city’s development and comparison of the expected results of the “smart city” concept are defined, the directions of the city infrastructure development to ensure the possibility of transition to the development within the “smart” concept are proposed. The research is carried out within the framework of the grant “Methodical Approaches to the Formation of the Concept of the Smart City Project within the Framework of the Development Trends for Digital Economy” with the financial support of the Krasnoyarsk Regional Fund for Support of Scientific and Technical ActivityСовременное развитие городов-миллионеров становится все чаще невозможно «классическим» путем. Ключевая проблема любого динамично растущего мегаполиса – отставание инфраструктурного развития или невозможность последней эффективно удовлетворять потребности всех элементов города. При этом город не имеет возможности предоставить для ее развития новые площади земельных ресурсов. Разные города и страны находят свои решения данного вопроса, в последнее время набирает популярность концепция «smart sity». В статье на примере города Красноярска рассмотрены обязательные требования к инфраструктуре (преимущественно транспортной) в рамках концепции «smart». Определены текущие тренды развития города и сопоставления ожидаемых на практике результатов концепции «smart sity», предложены направления развития инфраструктуры города для обеспечения возможности перехода к развитию в концепции «smart» . Исследование выполнено в рамках гранта «Методические подходы к формированию концепции создания проекта «Умный город (Smart City)» в контексте трендов развития цифровой экономики» при финансовой поддержке Красноярского краевого фонда поддержки научной и научно-технической деятельност

Оценка человеческого капитала макрорегиона на примере Енисейской Cибири

The article is devoted to the problem of measuring and estimating the human capital of the natural resource macroregion, whose territory is characterized by a high level of social and economic asymmetry. It presents results of testing of modified index of human capital in context of interdisciplinary approach. The study was based on survey findings, along with statistical data. The satisfaction of the population with the quality of life is a key indicator of the dynamics of human capital in the long term. The authors give recommendations on the development of information support of territorial policyСтатья посвящена проблеме измерения и оценки человеческого капитала ресурсного макрорегиона, территория которого отличается высоким уровнем социально-экономической асимметрии. Представлены результаты апробации модифицированного индекса человеческого капитала в контексте междисциплинарного подхода. Наряду со статистическими данными исследование опиралось на опросные данные. Удовлетворенность населения качеством жизни является ключевым индикатором динамики человеческого капитала в долгосрочном периоде. Представлены рекомендации по развитию информационного обеспечения территориальной политик