Institution
Tomsk Polytechnic University
Education•Tomsk, Russia•
About: Tomsk Polytechnic University is a education organization based out in Tomsk, Russia. It is known for research contribution in the topics: Combustion & Ignition system. The organization has 9190 authors who have published 13224 publications receiving 103735 citations.
Topics: Combustion, Ignition system, Electron, Catalysis, Coating
Papers published on a yearly basis
Papers
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36 citations
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TL;DR: In this article, optical excitation thermography was used for inspecting six dry multilayer carbon fiber preforms featuring different textile structures, thicknesses and defects, for the first time, and the performance of different thermography techniques was analysed in terms of summarizing the capabilities of image diagnosis/processing techniques by signal-to-noise ratio analysis, and identifying the monitoring modalities most suitable to industrial manufacturing.
Abstract: Carbon fibres have become the natural choice as reinforcements for polymer composite materials (PMCs). The non-destructive inspection of dry carbon fibre preforms has the potential to increase the reproducibility and reduce the cost of PMC manufacturing, by identifying defects in dry multilayer preforms prior to resin injection. However, use of optical excitation thermography for inspecting dry carbon fibre preforms that constitute the structural reinforcement precursor in the manufacturing of PMCs is poorly documented in the open literature. In this work, optical excitation thermography was used for inspecting six dry multilayer carbon fibre preforms featuring different textile structures, thicknesses and defects, for the first time. Advanced image processing techniques were used in processing the thermographic data for comparative purposes. In particular, partial least square thermography, as a recently proposed technique, was studied in detail. Finally, the performance of different thermography techniques was analysed in terms of: (1) summarizing the capabilities of image diagnosis/processing techniques by signal-to-noise ratio analysis, and (2) identifying the monitoring modalities most suitable to industrial manufacturing.
36 citations
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TL;DR: Both Mg and Si addition into HAP coatings were found to enhance the corrosion resistance of the Ti6Al4V alloy in the SBF solution, and coatings with low Mg content exhibited better corrosion performance.
Abstract: Hydroxyapatite (HAP) coatings are applied on metallic implant materials to combine mechanical properties of metallic material with bioactivity abilities of HAP ceramic. In this study, HAP coatings with additions of Si and Mg are proposed to be deposited on Ti6Al4V substrates by RF magnetron sputtering. Chemical bonding, morphology, topography and corrosion resistance in simulated body fluids (SBF) of the coatings were investigated. Additionally, mechanical and biological properties of the coatings were evaluated. It was found that the addition of Si and Mg does not influence the formation of a HAP phase. All the coatings exhibited smooth surface and uniform growth, without defects or cracks. Both hardness and elastic modulus of the coated samples decrease with Mg addition in the HAP-Si structure. Both Mg and Si addition into HAP coatings were found to enhance the corrosion resistance of the Ti6Al4V alloy in the SBF solution. Coatings with low Mg content exhibited better corrosion performance. All the coatings investigated were biocompatible, as demonstrated by SaOS-2 bone cell attachment and growth. However, cell proliferation and morphology were inferior on samples with the highest Mg content.
36 citations
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TL;DR: In this article, the spatial and temporal variability of the soil gas radon concentration in typical soils is studied and the results obtained will be further used to predict indoor radon levels.
36 citations
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TL;DR: In this paper, a potential instability in the PS model is identified, and a mechanism for its removal by adding a Fayet-Iliopoulos (FI) term is proposed.
Abstract: Polonyi–Starobinsky (PS) supergravity is the N = 1 supergravity model of Starobinsky inflation with spontaneous supersymmetry breaking (after inflation) due to Polonyi superfield, and inflaton belonging to a massive vector supermultiplet. The PS model is used for an explicit realization of the (super-heavy) gravitino dark matter scenario in cosmology. We find a potential instability in this model, and offer a mechanism for its removal by adding a Fayet–Iliopoulos (FI) term.
36 citations
Authors
Showing all 9329 results
Name | H-index | Papers | Citations |
---|---|---|---|
Zhu Han | 109 | 1407 | 48725 |
Gleb B. Sukhorukov | 96 | 440 | 35549 |
Giuseppe Resnati | 69 | 428 | 24373 |
Michael T. Wilson | 67 | 587 | 17689 |
Anton Babaev | 64 | 574 | 19193 |
Filippo Berto | 63 | 831 | 14979 |
Andrei L. Kholkin | 58 | 550 | 13675 |
Wei Gao | 58 | 691 | 13371 |
Mikhail A. Sheremet | 57 | 356 | 9248 |
Fabio Casati | 57 | 368 | 13132 |
Vladimir Tolmachev | 56 | 339 | 11221 |
Polina Kuzhir | 56 | 321 | 15230 |
Francis Verpoort | 56 | 443 | 12506 |
Vladimir Ivanchenko | 50 | 353 | 33122 |
Andrew J. Gow | 50 | 176 | 10877 |