scholarly journals 100-years’ story of success: photoelasticity — LSR–MICE – MSUCE

Vestnik MGSU ◽  
2021 ◽  
pp. 1297-1323
Author(s):  
Vadim N. Savostyanov ◽  
Lyudmila Yu. Frishter
Keyword(s):  
Stress State ◽  
Polarized Light ◽  
Physical Modelling ◽  
Practical Significance ◽  
Mechanical Problem ◽  
Deformable Solid ◽  
Stress Strain ◽  
Photoelasticity Method ◽  
Experimental School ◽  
History Of

Introduction. The 100-years’ history of MICE – MSUCE is also a history of establishment and flourishing of one of the world’s most powerful experimental school of development and application of the photoelasticity method in the investigation of the stress state of civil and special structures. Reliable forecast of the stress state of buildings and structures under static, thermal and dynamic impacts is an indispensable prerequisite of safe operation provision of civil structures during the construction and the operation. The photoelasticity method, allows, along with the analytical methods of the mechanical science, for continual study of the stress state of the object under test, being an experimental method efficiently used both in “standalone” mode and in conjunction with numerical methods. The goal and the objectives hereof: a retrospective development review of the photoelasticity method, in particular, of the contribution of LSR of MICE, and the assessment of the contemporary state of the method in terms of its actuality, novelty and practical significance of mechanical problem solutions, of stress-strain state studies of structures and buildings. Materials and methods. The subject hereof is the polarized light method or the photoelasticity method: development, problematics, solution methods of mechanical problems and studies of structures, applications. Results. The paper describes solution examples of vital problems by the photoelasticity method: stress analysis in the wedge-shaped notch zone of the area boundary, stress state problem under forced deformation in the block-basement contact area, stress state study of underground hydropower plant tunnel with the weir erected by pinpoint blasting. The performed analysis of the photoelasticity method and its contemporary level illustrates the opportunities provided by the method in solving of mechanical problems and in structural studies. Conclusions. Is the experimental school of the photoelasticity method of LSR–MICE – MSUCE really the sunk Atlantis? The development of the experimental mechanics of deformable solid bodies is characterized by progressive proximity of experimental and numerical analysis research methods. The physical modelling, in particular, the polarized light method, allows for obtaining stress-strain state diagrams of structures, or solutions of mechanical problems, feasible for assessment or for calculation result corrections, that is why the polarized light method retains actuality and practical significance. The development of the deformable solid body mechanics determines the significance of the physical modelling, including the polarized light method. The benefit of the polarized light method is the continuity of mechanical problem solutions which is especially important when local areas with specific features of the stress strain behaviour are considered. Modern technologies of material property studies, invention of new materials lead to creation of new mechanical models, for adequacy assessment of which physical modelling methods are required, in particular, the polarized light method.

A New Step in the Study of the History of the Russian Prosecutor’s Office

2019 ◽  
pp. 94-98
Keyword(s):  
Russian Federation ◽  
Russian Empire ◽  
Practical Significance ◽  
History Of ◽  
The Russian Federation ◽  
The Russian Empire ◽  
High Level ◽  
The University

The paper is a review on the textbook by A. V. Yeremin, «The History of the National Prosecutor’s office» and the anthology «The Prosecutor’s Office of the Russian Empire in the Documents of 1722–1917» (authors: V. V. Lavrov, A. V. Eremin, edited by N. M. Ivanov) published at the St. Petersburg Law Institute (branch) of the University of the Prosecutor’s office of the Russian Federation in 2018. The reviewers emphasize the high relevance and high level of research, their theoretical and practical significance. The textbook and the anthology will help the students increase their legal awareness, expand their horizons.

HISTORIOGRAPHY OF HISTORY OF THE STAVROPOL COSSACKS: KEY ASPECTS OF STUDYING THE REGIONAL COSSACK GROUP’S PAST

2021 ◽  
pp. 50-62
Author(s):  
K.A. Ushmaeva ◽  
◽  
A.S. Goncharov
Keyword(s):  
Comparative Method ◽  
Educational Institution ◽  
Practical Significance ◽  
Pedagogical Tools ◽  
Ideal Types ◽  
History Of ◽  
Historical Comparative ◽  
State Archives ◽  
Key Aspects ◽  
Economic Ties

This study is devoted to the study of relevant works on the history of the Stavropol Cossacks, works in the field of education of the Stavropol Cossacks as an independent Cossack group, trade, cultural and economic ties in the Stavropol Territory, spiritual life, language, culture, traditions and customs of the Stavropol Cossacks. Among modern studies in the history of the Stavropol Cossacks, the following topics stand out: military life and everyday life, folklore and song traditions, the movement for the revival of the Cossacks, as well as the current state and prospects for the development of Cossack organizations. The prospect of the development of pedagogical technologies based on the Cossack traditions of educating young people in Stavropol is highlighted as a separate topical topic. The relevance of the study lies in the need for a private study of the historiography of the regional Cossack group of Stavropol Cossacks in order to expand the scientific and pedagogical tools in the field of «Cossack studies». The practical significance of the study is expressed in the possibility of using the data of the article in the search for supporting material for teaching the "History of the Cossacks" in a higher educational institution (taking into account the regional specifics). The scientific novelty of the research is expressed in a new view of the Stavropol Cossacks as an independent Cossack group formed at the end of the XVIII century. The source base is represented mainly by archival data from the State Archives of the Stavropol Territory, data banks on archaeological, cultural and linguistic expeditions, sources of personal origin, the works of contemporary historians and directly the works of historians, whose studies formed the basis of the historiography of the history of the Stavropol Cossacks. The research methodology is based on the principles of historiographic comparative studies and comparative analysis of sources. Within the framework of the sociocultural approach, we rely on the following methods. Special-historical: the narrative method, the historical-comparative method, the historical-systemic method, the retrospective method. Sociological: document analysis, method of generalizing characteristics, method of ideal types. Culturological: comparative method, cultural-systemic method. Pedagogical: pedagogical interviewing, a method of studying and generalizing pedagogical experience.

scholarly journals Experimental degradation of helicoidal photonic nanostructures in scarab beetles (Coleoptera: Scarabaeidae): implications for the identification of circularly polarizing cuticle in the fossil record

2018 ◽  
Vol 15 (148) ◽  
pp. 20180560 ◽  
Author(s):  
Giliane P. Odin ◽  
Maria E. McNamara ◽  
Hans Arwin ◽  
Kenneth Järrendahl
Keyword(s):  
Uric Acid ◽  
Fossil Record ◽  
Evolutionary History ◽  
Polarized Light ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Alkaline Conditions ◽  
History Of ◽  
Diagenetic History ◽  
Scarab Beetles

Scarab beetles (Coleoptera: Scarabaeidae) can exhibit striking colours produced by pigments and/or nanostructures. The latter include helicoidal (Bouligand) structures that can generate circularly polarized light. These have a cryptic evolutionary history in part because fossil examples are unknown. This suggests either a real biological signal, i.e. that Bouligand structures did not evolve until recently, or a taphonomic signal, i.e. that conditions during the fossilization process were not conducive to their preservation. We address this issue by experimentally degrading circularly polarizing cuticle of modern scarab beetles to test the relative roles of decay, maturation and taxonomy in controlling preservation. The results reveal that Bouligand structures have the potential to survive fossilization, but preservation is controlled by taxonomy and the diagenetic history of specimens. Further, cuticle of specific genus ( Chrysina ) is particularly decay-prone in alkaline conditions; this may relate to the presence of certain compounds, e.g. uric acid, in the cuticle of these taxa.

Dysregulatory visceropathies in patients with uterine endometriosis and recurrent endometrial hyperplasia

1986 ◽  
Vol 67 (5) ◽  
pp. 347-349
Author(s):  
N. I. Petrushkova
Keyword(s):  
Endometrial Hyperplasia ◽  
Digestive System ◽  
Practical Significance ◽  
Control Group ◽  
Liver And Pancreas ◽  
Rational Therapy ◽  
History Of ◽  
Group 2 ◽  
Digestive Glands ◽  
Group 1

The study of neurohormonal-visceral relationships in patients with uterine endometriosis is of practical significance in the development of rational therapy and prevention of this complex and rather frequent pathology. This study was aimed to investigate the functional state of the digestive glands of the stomach, intestines, liver and pancreas in 152 patients with uterine internal endometriosis (Group 1) and in 50 patients with recurrent endometrial hyperplasia (Group 2). Twenty healthy women were the control group. Patients with no history of diseases of the digestive system were selected for the examination.

A publication that can hardly be overestimated

2021 ◽  
Vol 21 (2) ◽  
pp. 94-100
Author(s):  
Kh.I. Bakov ◽  
Keyword(s):  
Practical Significance ◽  
Literary Process ◽  
History Of ◽  
The Creation

The article analyzes the three-volume edition «History of kabardino-circassian literature», prepared by a team of literary scholars of the Kabardino-Balkarian Institute for Humanitarian Research, the last volume of which was published recently. The difficult and long-term path of the creation of this scientific ore is traced, the changes that have taken place in the work project are indicated, their objective and subjective reasons are clarified. Initially, it was planned to study only the Kabardian literary process, but in the course of it, the authors added the work of Circassian writers, and then the literature created by the Adygs in the foreign diasporas, which increased the significance of the work. It is indicated that in the «History of kabardino-circassian literature» not all bright creative individuals have separate chapters. It is proposed, in addition to this edition, to write a monograph, where separately consider the work of B. Utizhev, Kh. Beshtokov, K. Duguzhev and poets and writers who have revealed their potential in recent years (there is such a plan in the sector of «Kabardino-Circassian literature» KBIGR. In conclusion the article emphasizes the theoretical and practical significance of the topical work of leading Adygean literary critics.

Improving Methods of Assessment of a Stress State of Structures According to the Results of Coercive Measurements

2018 ◽  
Vol 284 ◽  
pp. 1332-1336
Author(s):  
N.L. Zaytsev
Keyword(s):  
Stress State ◽  
Strain State ◽  
Steel Structures ◽  
Stress Strain ◽  
Stress Strain State ◽  
Assessment Of Stress

At the present time the assessment of stress-strain state of steel structures uses the results of coercive measurements. However, the methods presented in various works are contradictory and not deprived of errors of a methodological nature, which may lead to erroneous conclusions. This article reveals the analysis of disadvantages of the known methods and proposes possible ways to eliminate these shortcomings.

scholarly journals Marx’s monetary theory and its practical value

2019 ◽  
Vol 2 (2) ◽  
pp. 182-200
Author(s):  
Guogang Wang
Keyword(s):  
Intellectual History ◽  
Financial Supervision ◽  
Practical Significance ◽  
Monetary Theory ◽  
Social Functions ◽  
Content Type ◽  
Long Time ◽  
History Of ◽  
Definition Of ◽  
And Function

Purpose Marx’s monetary theory is an important part of Marxist economics and an irreplaceable milestone in the intellectual history of the monetary theory. The purpose of this paper is to summarize the main content of Marx’s monetary theory from three aspects: the source and nature of money, the function of money and the historical significance of money. Design/methodology/approach Moreover, this paper also gives an extended understanding of Marx’s monetary theory from four perspectives: the endogenous credit mechanism of money, the functions of money and demands for money, the financial function of money and the economic and social functions of money. Findings Lastly, the present paper discusses the practical significance of Marx’s monetary theory from three perspectives, namely, the inspection of “Bitcoin” from the nature and function of money, the definition of demands and the division of supplies at the monetary level, and the prevention of systemic financial risks and the focus of financial supervision. Originality/value Marx’s monetary theory is an important part of Marxist economics and an irreplaceable milestone in the intellectual history of the monetary theory. However, for a long time, the contribution of Marx has rarely been mentioned in the intellectual history of monetary theory. Even the book, Political Economy (On Capitalism), has been only summarily concerned with the source and function of money in Marx’s monetary theory, rather than revealing Marx’s outstanding contribution in the monetary theory and the financial connotation of Marx’s monetary theory, and expounding its practical significance.

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