transitional processes
Recently Published Documents


TOTAL DOCUMENTS

95
(FIVE YEARS 29)

H-INDEX

7
(FIVE YEARS 2)

2021 ◽  
Vol 13 (4-2) ◽  
pp. 366-383
Author(s):  
Gennady Pikov ◽  

The article draws attention to the fact that the phenomenon of marginality is the formation of one's own environment, although not completely dissolving into it. Traditional culture goes into the "basements" of society or manifests itself in the life and mentality of marginals. In a society affected by crisis, several cultural trajectories collide: descending, ascending and, for the marginalized, breaking traditional ties and creating their own, completely different world. In fact, marginality is the third culture, a special socio-cultural state. The article discusses its corresponding components. The prerequisites of global transformation are considered. The situation in Europe begins to change fundamentally at the turn of the I-II millennia. The formation of the era of European Transformation can begin with the XI-XIII centuries, when "Catholic" Europe appears. Phenomenal in its results was the "Renaissance of the XII century", the first truly pan-European Revival at the origins of the era of Transformation. With this, the movement towards a High Renaissance began. The Crusades (XI-XIII centuries) are particularly highlighted. After the Crusades, two variants of capitalism become promising and predominant in Europe and North America, and then their slow convergence continues. The XIII century became a milestone for contemporaries. On the one hand, Europe, it would seem, reached the end of history by creating some kind of optimal model. On the other hand, the reverse side of the idea of the "end of history" became clearly visible. The Mongols, having captured most of Eurasia, reformatted the ethno-political space. In this century, capitalist Europe is born, in fact, as a special development option. Highlighting the era of transformation does not mean that we should abandon the usual division of European history into known periods: antiquity, the Middle Ages, modern times. This periodization successfully emphasizes social and economic aspects and provides a chronological understanding of transitional processes. The era of Transformation is more voluminous, since we are talking about the transition from a centuries-old traditional society to a new stage of human development. Neither the Renaissance nor the Reformation created a new culture, the so-called bourgeois culture will have many faces, both international and national. The main thing is seen in the liberation of man from the former powerful civilizational model, Latin-Christian, i.e. Imperial-ecclesiastical, and ultimately - in the formation of a new type of man.


2021 ◽  
Vol 2131 (2) ◽  
pp. 022106
Author(s):  
P Cvetkov ◽  
V Leontiev ◽  
I Busko

Abstract A description is given of a virtual test-bench (VTB) designed by engineering center of Peter the Great St. Petersburg Polytechnic University to calculate a sound absorption coefficient of various materials. Developed VTB differs from known programs in that it allows a sound absorption coefficient of various materials to be determined with minimum involvement of an engineer. This VTB differs from other programs also by using infinite elements jointly with finite elements, which increases adequacy of the discrete model being used, and also the configuration of the boundary of an alpha chamber being used. The known programs use various phenomenological mathematical models of porous materials such as Johnson-Champoux-Allard (JCA) model. The VTB is based on fundamental mathematical models and statistical energy analysis (SEA) that allow describing adequately the established or transitional processes of sound absorption and reflection by a porous material the properties of which are not homogenized. The value of this VTB, which is created on the basis of a VA One software complex supplemented by a set of files of boundary conditions, files of solvers’ settings, secondary finite element (FE) models, is that VTB allows standardized calculations to be performed to determine the sound absorption coefficient of a material with minimum involvement of an engineer and the obtained result to be submitted for detailed processing. Developed virtual test-bench enables determination of a sound absorption coefficient for various materials within the entire finite frequency range. The result of the calculation is displayed as a graph of dependency of the material sound absorption coefficient on frequency.


Author(s):  
Penny Jane Burke ◽  
Claire Cameron ◽  
Emily Fuller ◽  
Katie Hollingworth

Young people in state care not only lose support, usually at 18 years of age, but also experience unequal participation in post-secondary education. This has raised concern about the importance of widening participation (WP) for care-experienced young people (CEYP). However, CEYP are often institutionally stigmatised and this could be worsened by WP interventions that are framed by deficit discourses. Weaving together social pedagogies and social justice theories, the article aims to reframe WP away from deficit discourses through recognition of the systemic, structural and cultural inequalities that most CEYP must navigate to access formal education. We introduce the concept of the relational navigator, in which a pedagogical relationship enables the navigator to ‘pilot’ through complex systems and transitional processes in collaboration with, and through ‘walking alongside’, the CEYP with respect to their lived contexts and experiences. This article draws from the reflections of WP navigators situated in two small-scale WP projects, one in an English museum and the other in an Australian university. Our analysis of the reflections of the WP project navigators is offered as a preliminary exploration of the potential the relational navigator as a way to shift deficit discourses and work towards a reframing of WP through a social pedagogical perspective.


Author(s):  
Volodymyr Rutkevych

The problem of creating an energy-efficient and competitive mechanism for cutting and unloading stalk fodder from trench storage, by developing and justifying the parameters and modes of operation of the adaptive system of hydraulic drives of the mechanism is researched. The principal implementation of the adaptive system of hydraulic drive of the mechanism for cutting and unloading is proposed, in which a spool flow divider is placed between two executive hydraulic motors, which allows to regulate the supply of a U–shaped frame according to the load change which affects the cutting mechanism. The adaptive system of the hydraulic drive of the mechanism allows to stabilize energy consumption for separation of a portion of a stalk fodder under the condition of change and fluctuation of parameters which essentially influence the process of separation and unloading of a stalk fodder from the monolith. The transients in the adaptive systems of hydraulic drives of the mechanism for cutting and unloading of stalk fodder are received and analyzed. As a result of the study, it was found that by changing the operating widths of the slide valve of the separator in the direction of reduction, a significant increase in the responsiveness of the hydraulic drive system of the mechanism for cutting and unloading to the changes in the loading on the cutting apparatus. As a result, the range of the adjustment of the feeding of the hydraulic cylinder of the U–shaped frame, which increases the efficiency of stabilizing the separation process from the monolith of block-portion of stalk fodder with a minimum power of the hydraulic drive system, is substantially expanded. It is noted that the dynamic characteristics of the hydraulic drive of the mechanism for cutting and unloading stalk fodder adaptive to the load are influenced by the design parameters of the spool flow divider which implements feedback. On the basis of the conducted experimental research recommendations on the choice of constructive parameters of the spool flow divider are given.


2021 ◽  
Vol 3 (5 (111)) ◽  
pp. 19-25
Author(s):  
Anatoly Panchenko ◽  
Oleh Smyrnov ◽  
Andrey Nechaus ◽  
Iryna Trunova ◽  
Anna Borysenko ◽  
...  

Supercapacitors are commonly used for a guaranteed launch of diesel generators. However, the processes caused by the starting current until the starter shaft rotates are disregarded. The duration of this moment is short but its effect on the rechargeable battery, taking into consideration its service life, is significant. The shape of this pulse, its duration significantly depend on the ratio of system parameters: supercapacitor (rechargeable battery) – starter – diesel generator. A system of differential equations has been proposed to describe the compatible electromagnetic and electromechanical processes that occur when the starter of the diesel generator is powered from the supercapacitor. A charge is used as a variable quantity. The transitional processes occurring in the stationary starter rotor and the subsequent processes caused by the growth of the electromagnetic starter moment have been taken into consideration. This paper reports establishing those patterns that are related to the beginning of the starter movement, its entering the mode at the falling voltage of the supercapacitor, the exchange of electrical and magnetic energy accumulated in the inductive elements of the starter. Using the charge as a variable quantity has made it possible to combine the final values of the preceding process (stationary rotor) with the initial ones of the next one (output to starting speed). Thus, a mathematical notation has been derived that considers most of the parameters of the charge circle of the supercapacitor. The possibility of using an inflated voltage of the supercapacitor to increase the accumulated energy has been clarified. The processes have been theoretically substantiated, which makes it possible to use a small internal resistance of the starter circuit, the presence of inductive components, an abnormal capacity of the supercapacitor to form the desired shape of the electromagnetic moment. That would make it possible to take into consideration the specific requirements of various systems of guaranteed power supply.


Author(s):  
Dmytro Kononov ◽  
Yevhen Miroshnyk

Purpose: to study the transients in the vibrating machine that accompany the start from rest and run out.The studies were performed on a laboratory vibrating screen. The screen is driven by an adjustable drive - a single-shaft inertial vibrator, which has imbalances with variable mass. The screen has a resonant setting, ie h natural oscillation frequency is less than the frequency of the forcing force of the drive.The GY-521 module with the MPU6050 chip is used to measure the kinematic characteristics. This module allows you to measure linear acceleration and angular velocity.The graphs show typical graphs of changes in the acceleration points of the vibrating screen box at full cycle: from start to complete stop.The graphs show the run-out (stop) areas of the screen. There is an increase in the amplitude of the oscillation of the acceleration of the screen box during the passage of the resonant frequency. This phenomenon is characteristic of the vibrating machine with a resonant setting.


2021 ◽  
Author(s):  
Sergei Rasskazov ◽  
Irina Chuvashova ◽  
Tatiana Yasnygina ◽  
Elena Saranina

<p>The Nb/U~47 and Th/U~4 ratios are considered as indicative for the OIB source referred by some authors to lower mantle plumes that in fact have no specific geochemical signatures but HIMU component. The Th/U ratio may vary because of the different garnet–melt and/or clinopyroxene–melt partition coefficients of U and Th. Anomalously high or low Th/U values in rocks can also be related to the input or removal of U, the migration of which is controlled by its mobility under oxidizing conditions owing to the formation of water-soluble uranyl  compounds with hexavalent U. These variations definitely distinguish non-plume magmatic sources. The Th/U ratio decreases to 2.5 in the MORB source and increases to 6 in the continental lower crust one. We describe anomalous behavior of uranium in sources of Cenozoic basalts and basaltic andesites from Primorye, Lesser Khingan, Tunka Valley, as well as similar Cretaceous-Paleogene rocks from Tien Shan. Significant deviations of the Th/U and Nb/U ratios from the OIB values are characteristics mostly of garnet-free sources. The U-depleted and U-enriched signatures are used as sensitive indicators for deciphering crust–mantle transitional processes.</p><p>This work is supported by the RSF grant 18-77-10027.</p>


2021 ◽  
pp. 174619792098136
Author(s):  
Sansom Milton

In this paper, the role of higher education in post-uprising Libya is analysed in terms of its relationship with transitional processes of democratization and civic development. It begins by contextualising the Libyan uprising within the optimism of the ‘Arab Spring’ transitions in the Middle East. Following this, the relationship between higher education and politics under the Qadhafi regime and in the immediate aftermath of its overthrow is discussed. A case-study of a programme designed to support Tripoli University in contributing towards democratisation will then be presented. The findings of the case-study will be reflected upon to offer a set of recommendations for international actors engaging in political and civic education in conflict-affected settings, in particular in the Middle East.


Author(s):  
I. V. Tsoy ◽  
◽  
P. I. Zaynullina ◽  

The article presents main directions, priorities, and goals of youth policy in Russia and the Republic of Korea. Transitional processes and features of the state youth policy, as well as the key provisions set out in the main legislative acts, have been considered in a comparative aspect. Regarding Russia the authors revised the Federal Law “On Youth Policy in the Russian Federation” of December 31, 2020, and the Order of the Government of the Russian Federation of November 29, 2014, “On the Foundations of State Youth Policy until 2025”. The Republic of Korea is examined with the Basic (November 20, 2020) and Framework (August 5, 2020) Laws of youth and the Sixth Basic Plan for Youth Policy 2018–2022. For the Republic of Korea this is a main document that defines national youth policy in the coming years. The study aims to correlate basic principles and priorities of youth policy in both countries.


Sign in / Sign up

Export Citation Format

Share Document