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Your search keyword '"Bogachev, I. A."' showing total 27 results
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27 results on '"Bogachev, I. A."'

6. Algorithms for Splitting Telemetric Data Frames into Strictly Homogeneous Areas for the Compression Problem

Author

Chye, E. U., Bogachev, I., Levenets, A., Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Radionov, Andrey A., editor, and Gasiyarov, Vadim R., editor

Published
2021
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19. High temperature behaviour of a mechanically surface hardened single crystal nickel-based superalloy

Author

Bogachev, I, Knowles, KM, Gibson, GJ, and Apollo - University of Cambridge Repository

Subjects
Electron backscattered diffraction (EBSD), Mechanical shot peening (MSP), Temperature effect, Recrystallization, Deep cold rolling (DCR), General Materials Science, Nickel-based single crystal superalloys
Abstract

Surface hardening procedures such as mechanical shot peening and deep cold rolling introduce extensive surface cold work and compressive residual stress. While both methods are designed to increase material fatigue strength, single crystal nickel-based superalloys used for turbine blade applications are routinely exposed to temperatures above 900 °C. The thermal stability of the cold work and the residual stress induced in the sub-surface of the material is therefore a key design requirement. In this study, mechanically shot peened and deep cold rolled samples of the superalloy CMSX-4 were annealed in vacuum at either 900 °C or 1100 °C for between 100 and 1000 h. Using scanning electron microscopy, electron backscattered diffraction and centre hole drilling, the cold work, the residual stress and the material response to annealing heat treatments were all studied. Significant recrystallisation of the cold worked material was observed, typically after 500 h at 900 °C and after 5 h at 1100 °C. Undesirable topologically close-packed precipitates began forming on slip bands generated by both surface hardening techniques after only 10 h at 900 °C, whereas at 1100 °C their formation was hindered by the recovery of slip bands. Rafting of the γ/γ' microstructure took place at 1100 °C, with the extent of the rafting found to be limited by the depth of compressive residual stress. Samples treated by deep cold rolling generally displayed smaller recrystallisation depths, lower rates of topologically close-packed precipitate formation and deeper rafting than those treated by mechanical shot peening.

Published
2022
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22. Climatic Prerequisites for the Naturalization of Magnolia sieboldiis.l. in Russia

Author

Bogachev, I. G., Tvorogov, S. P., and Kameneva, L. A.

Abstract

Abstract: The invasive potential of Magnolia sieboldiiK. Koch on the territory of the Botanical Garden-Institute of the Far Eastern Branch of the Russian Academy of Sciences (BGI FEB RAS) has been studied. The emergence of self-sown plants of M. sieboldiiin natural ecosystems has been monitored since 2015, and their age structure and morphometric indices have been analyzed. The dependence of the mass appearance of seedlings on phenological shifts caused by modern climate changes has been shown. Changes in the boundaries of the natural range of this species for the period from the last glacial maximum to the short-term future (2070) have been described by the modeling of potential habitats. A tendency for expansion of the M. sieboldiirange in the northeastern direction has been established, and the potential of the distribution of this species over the Russian Far East has been evaluated.

Published
2022
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24. Properties of nano encapsulated l-arginine and resveratrol in watersoluble polymers

Author

Bogachev, I. A. and Krolevets, A. A.

Subjects
medicine, Nanoparticle Tracking Analysis method, nanocapsules, NTA-method, L-arginine, pharmacology, resveratrol, self-organization
Abstract

This article analyzes properties of nano encapsulated L-arginine and resveratrol using a Nanoparticle Tracking Analysis method, and studies their supramolecular properties using a selforganization

Published
2015

27. NANOPARTICLES AS AGENTS FOR TARGETED DELIVERY IN THE TREATMENT OF VASCULAR PATHOLOGIES.

Author

Sernov L. N., Bogachev I. A., and Avtina T. V.

Subjects
NANOPARTICLES, CARDIOVASCULAR diseases, PATHOLOGY, INFLAMMATION, CHEMOKINES
Abstract

Inflammation in the pathogenesis of cardiovascular diseases. Inflammation is the cornerstone of CVD. Systemic inflammation can lead to activation of the endothelium characterized by increased expression of endothelial adhesion molecules and chemokines (e.g., vascular adhesion molecules [VCAM] and monocyte chemotactic protein [MCP-1]), as well as reduced expression of anti-atherogenic molecules. Statins are the most effective treatment for hyperlipidemia and remain the gold standard for the treatment of vascular inflammation and CVD. New strategies and approaches to targeted delivery of drugs. These approaches are mainly based on two main aspects: 1) pharmaceutical composition which allows to encapsulate therapeutic agents; 2) surface functionalization with the help of a target agent (i.e., antibodies and small molecules) for drug delivery to endothelium. Nanostructured mesoporous silicon vectors (MSV) charged with 10-nm polymer micelles are used as a tool for the treatment of chronic heart failure. Another approach is the development of carriers that are analogues of natural adhesion molecules (CAM) or selectin ligands. The strategy of treatment of cardiovascular diseases with preparations based on nanoparticles. For the visualization of atherosclerotic plaques, nanoparticles conjugated with indium (111In) based on antibodies bound to LOX-1 receptors of low density were used in mice. New ideas and opportunities for drug development. 1) development of carrier-based microorganisms (such as bacteria or viruses), or cells (e.g. leukocytes, erythrocytes, platelets and stem cells); 2) development of nanoparticles with analogues of biologically active molecules that bind to cell membranes. Additional approaches include lacto-glycolic acid polymers (PLGA). Another approach to delivering drugs to the endothelium is to create a nanocapsule based on high molecular weight polymers with a nucleus containing a drug substance. This may allow switching from a three-compartment pharmacokinetic model to a one-cell model. [ABSTRACT FROM AUTHOR]

Published
2017
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