发布求助
文献互助 智能选刊 最新文献

Bulletin of the Russian Academy of Sciences: Physics最新文献

筛选
英文 中文
Investigation of Reservoirs Ice Covers with Different Salinity Using the GNSS Reflectometry
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-02-25 DOI: 10.1134/S1062873824709371
D. S. Makarov, D. V. Kharlamov, M. Yu. Reushev, V. G. Podoprigora, K. V. Krasnoshchekov
{"title":"Investigation of Reservoirs Ice Covers with Different Salinity Using the GNSS Reflectometry","authors":"D. S. Makarov,&nbsp;D. V. Kharlamov,&nbsp;M. Yu. Reushev,&nbsp;V. G. Podoprigora,&nbsp;K. V. Krasnoshchekov","doi":"10.1134/S1062873824709371","DOIUrl":"10.1134/S1062873824709371","url":null,"abstract":"<p>In the period from winter to spring 2024, a series of measurements of interference reflectograms from layered structures of ice surfaces of freshwater and salt reservoirs of the Krasnoyarsk Territory and the Republic of Khakassia were carried out. These measurements were performed using signals from navigation satellites operating in the L1 band. The experimental data obtained in the form of amplitude-time dependencies were processed using the fast Fourier transform algorithm. Subsequent analysis of the measurement processing results allowed us to conclude that the GNSS reflectometry method is highly sensitive to determining the macrophysical characteristics of ice surfaces with different salinity of reservoirs.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 2 supplement","pages":"S253 - S259"},"PeriodicalIF":0.48,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Effect of Mechanical Processing of the Powder Composition and the Molding Method on the Properties of Manganese-Substituted Barium Aluminate
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-02-25 DOI: 10.1134/S1062873824709401
A. A. Zhdanok, Z. A. Korotaeva, L. K. Berdnikova, B. P. Tolochko, V. V. Bulgakov
{"title":"The Effect of Mechanical Processing of the Powder Composition and the Molding Method on the Properties of Manganese-Substituted Barium Aluminate","authors":"A. A. Zhdanok,&nbsp;Z. A. Korotaeva,&nbsp;L. K. Berdnikova,&nbsp;B. P. Tolochko,&nbsp;V. V. Bulgakov","doi":"10.1134/S1062873824709401","DOIUrl":"10.1134/S1062873824709401","url":null,"abstract":"<p>The influence of the conditions of solid-phase synthesis, the composition of the powder composition, the time of its mechanical treatment and the molding method on the properties of ceramics based on manganese-substituted barium aluminate has been studied. It is shown that it is effective to synthesize a material of stoichiometric composition BaO·Mn<sub>2</sub>O<sub>3</sub>·5Al<sub>2</sub>O<sub>3</sub> with subsequent mechanical treatment of the relevant components for 1 min in the AGO-3 activator, forming by semi-dry static pressing at a pressing pressure of 200 MPa, sintering temperature of 1600°C. In this mode, ceramics with a density of 3.73 g/cm<sup>3</sup> and a compressive strength of 680.7 MPa were obtained.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 2 supplement","pages":"S281 - S285"},"PeriodicalIF":0.48,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Laser Generation of Chromene-3 in Active Planar Waveguides Based on Polymethylmethacrylate
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-02-25 DOI: 10.1134/S1062873824709024
E. N. Tel’minov, Sh. T. Berdybaeva, T. A. Solodova, R. M. Gadirov, M. G. Fedotkin
{"title":"Laser Generation of Chromene-3 in Active Planar Waveguides Based on Polymethylmethacrylate","authors":"E. N. Tel’minov,&nbsp;Sh. T. Berdybaeva,&nbsp;T. A. Solodova,&nbsp;R. M. Gadirov,&nbsp;M. G. Fedotkin","doi":"10.1134/S1062873824709024","DOIUrl":"10.1134/S1062873824709024","url":null,"abstract":"<p>We presented the results of a study on the luminescent and lasing characteristics of active photoexcitable planar waveguides made of polymethyl methacrylate (PMMA) doped with 3-(diethylamino)-7-oxo-7<i>H</i>-benzo[45]imidazo[12-a]chromeno[32-c]pyridine-6-carbonitrile. Changes in the position of the maxima of the lasing lines for waveguides obtained from different solvents with respect to the values obtained in solutions were noted under excitation by the second harmonic of an YAG-Nd<sup>3+</sup> laser.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 2 supplement","pages":"S201 - S205"},"PeriodicalIF":0.48,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Domain-Adversarial Approach to Neural Networks Training to Determine the Composition of Wines Using Various Techniques for Measuring IR Absorption Spectra
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-02-25 DOI: 10.1134/S106287382470895X
L. S. Utegenova, O. E. Sarmanova, S. A. Burikov, I. V. Plastinin, T. A. Dolenko, S. A. Dolenko
{"title":"Domain-Adversarial Approach to Neural Networks Training to Determine the Composition of Wines Using Various Techniques for Measuring IR Absorption Spectra","authors":"L. S. Utegenova,&nbsp;O. E. Sarmanova,&nbsp;S. A. Burikov,&nbsp;I. V. Plastinin,&nbsp;T. A. Dolenko,&nbsp;S. A. Dolenko","doi":"10.1134/S106287382470895X","DOIUrl":"10.1134/S106287382470895X","url":null,"abstract":"<p>The study is devoted to solving the problem of simultaneous determination of the concentration of five components of wines (ethanol; a mixture of glucose, fructose and sucrose; a mixture of tartaric, malic and citric acids; glycerol; sulfur dioxide) with the IR absorption spectra of wines using neural networks. The use of domain-adversarial training of neural networks for quantitative analysis of the wine components concentration enabled overcoming the problem of IR spectra registering technique influencing their shape and ensured simultaneous determination of the concentration of the desired components with satisfactory accuracy.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 2 supplement","pages":"S160 - S165"},"PeriodicalIF":0.48,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Production of a Binder from α-Aluminum Oxide and Corundum Non-Shrinkable Refractories Based on It for Use in Extreme Conditions
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-02-25 DOI: 10.1134/S1062873824709395
Z. A. Korotaeva, L. K. Berdnikova, A. A. Zhdanok, B. P. Tolochko, V. V. Bulgakov
{"title":"Production of a Binder from α-Aluminum Oxide and Corundum Non-Shrinkable Refractories Based on It for Use in Extreme Conditions","authors":"Z. A. Korotaeva,&nbsp;L. K. Berdnikova,&nbsp;A. A. Zhdanok,&nbsp;B. P. Tolochko,&nbsp;V. V. Bulgakov","doi":"10.1134/S1062873824709395","DOIUrl":"10.1134/S1062873824709395","url":null,"abstract":"<p>Several grades of aluminum oxide have been studied, their preparation modes and testing methods have been worked out to obtain a binder for non-shrinkable refractories. Using mechanochemical methods, a binder based on prepared aluminum oxide of the TC 6-09-426-75 brand and an additive of zirconium oxychloride was obtained. After heat treatment at 1250°C, the maximum value of the compressive strength of the refractory samples is 120 MPa, the volume shrinkage of the samples is less than 1%.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 2 supplement","pages":"S275 - S280"},"PeriodicalIF":0.48,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ion Etching as a Method to Optimize the Optoelectric Parameters of Transparent Conductive Structures In2O3/Ag/In2O3
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-02-25 DOI: 10.1134/S1062873824709000
S. V. Nedelin, N. A. Zolotovskii, A. S. Voronin, M. M. Simunin, M. O. Makeev, A. V. Lukyanenko, I. A. Tambasov
{"title":"Ion Etching as a Method to Optimize the Optoelectric Parameters of Transparent Conductive Structures In2O3/Ag/In2O3","authors":"S. V. Nedelin,&nbsp;N. A. Zolotovskii,&nbsp;A. S. Voronin,&nbsp;M. M. Simunin,&nbsp;M. O. Makeev,&nbsp;A. V. Lukyanenko,&nbsp;I. A. Tambasov","doi":"10.1134/S1062873824709000","DOIUrl":"10.1134/S1062873824709000","url":null,"abstract":"<p>We investigated the optoelectric characteristics of transparent conducting structures of oxide/metal/oxide (OMO) type, where In<sub>2</sub>O<sub>3</sub> is used as an oxide and Ag is used as a metal. Samples were obtained by magnetron sputtering. The focus is on the influence of the thickness and homogeneity of the silver layer on the optical and electrical properties of the structures. We use an ion etching method to improve performance of silver thin films and reduce thickness. Usually, in the case of poor wetting of the metal oxide substrate, the thin film grows by the island mechanism (Volmer–Weber mechanism), which leads to poor properties of the OMO structures. The proposed method consists of “thinning” the obvious continuous silver films using ion etching, because of which the thin silver films become closer to the films growing by the layer-by-layer mechanism (Frank–van der Merwe mechanism). The results obtained showed that ion etching allows us to achieve higher transparency of the structure without crucial loosing of electrical conductivity. This makes the method promising for further application in optoelectronic devices such as solar cells and displays.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 2 supplement","pages":"S192 - S196"},"PeriodicalIF":0.48,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selective Laser Sintering of Silver Nanowires for Flexible Electronics Materials
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-02-25 DOI: 10.1134/S1062873824709346
I. I. Bril, A. S. Voronin, A. Y. Pavlikov, M. O. Makeev, P. A. Mikhalev, S. V. Khartov
{"title":"Selective Laser Sintering of Silver Nanowires for Flexible Electronics Materials","authors":"I. I. Bril,&nbsp;A. S. Voronin,&nbsp;A. Y. Pavlikov,&nbsp;M. O. Makeev,&nbsp;P. A. Mikhalev,&nbsp;S. V. Khartov","doi":"10.1134/S1062873824709346","DOIUrl":"10.1134/S1062873824709346","url":null,"abstract":"<p>Emerging technologies like the Internet of Things, printed and flexible electronics, and neural interfaces demand materials with exceptional properties. Laser processing offers a cost-effective and sustainable approach to creating conductive materials. We synthesized silver nanowires (AgNW) and used laser irradiation to enhance their properties. This led to sintering and partial melting of AgNW, significantly reducing sheet resistance. Furthermore, the laser melted the polymer interface, integrating AgNW and improving adhesion, allowing for flexible bending. The obtained high durable AgNW films on flexible polyethylene terephthalate (PET) substrate with low sheet resistance 0.03 Ω/sq and great mechanical stability. This making it suitable for flexible electronics applications.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 2 supplement","pages":"S234 - S240"},"PeriodicalIF":0.48,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Hydration on the Brillouin Spectra of Human Corneal Lamella
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-02-25 DOI: 10.1134/S1062873824709012
D. A. Zolotorenko, S. V. Adichtchev, N. V. Surovtsev, K. Y. Krasner, V. V. Chernykh
{"title":"Effect of Hydration on the Brillouin Spectra of Human Corneal Lamella","authors":"D. A. Zolotorenko,&nbsp;S. V. Adichtchev,&nbsp;N. V. Surovtsev,&nbsp;K. Y. Krasner,&nbsp;V. V. Chernykh","doi":"10.1134/S1062873824709012","DOIUrl":"10.1134/S1062873824709012","url":null,"abstract":"<p>The elastic properties of human corneal lamellas with varying degrees of hydration were examined using Brillouin spectroscopy. The findings indicate that hydration significantly influences the elastic properties of the cornea, surpassing the effects of treatments with ultraviolet light or riboflavin. The relationship between the modulus of elasticity and hydration can be described by a two-component model that incorporates the additive contribution of compliance. This model reveals two distinct linear regions, wherein the observed change in slope is attributed to variations in the compliance of collagen, likely resulting from the evaporation of water from the collagen fibrils.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 2 supplement","pages":"S197 - S200"},"PeriodicalIF":0.48,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Elastic Stresses in FRP Composite on the Frequency Characteristics of Acoustic Emission Signals Recorded by a Fiber-Optic Sensor
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-02-10 DOI: 10.1134/S1062873824710675
R. V. Romashko, O. V. Bashkov, I. O. Bashkov, M. N. Bezruk, T. A. Efimov, F. Xiao
{"title":"Effect of Elastic Stresses in FRP Composite on the Frequency Characteristics of Acoustic Emission Signals Recorded by a Fiber-Optic Sensor","authors":"R. V. Romashko,&nbsp;O. V. Bashkov,&nbsp;I. O. Bashkov,&nbsp;M. N. Bezruk,&nbsp;T. A. Efimov,&nbsp;F. Xiao","doi":"10.1134/S1062873824710675","DOIUrl":"10.1134/S1062873824710675","url":null,"abstract":"<p>The purpose of the work is to establish the influence of elastic stresses in fiberglass on the frequency characteristics of acoustic emission (AE) signals recorded by a piezoelectric and fiber-optic acoustic emission sensor. Samples of fibre reinforced plastic (FRP) composite were made in the form of plates using the vacuum infusion method. After that, samples were cut out from the plate for subsequent tensile testing on a tensile testing machine. The samples had the shape of a double blade. The fiber-optic sensor was made on the basis of an adaptive laser holographic interferometer. The sensitive element of the sensor is a multimode optical fiber, which was glued to the surface of the working part of the samples before testing. The piezoelectric transducer was installed on the non-working part of the sample. The sample was loaded with a tensile load in stages. At each loading stage, acoustic waves were excited in the middle part of the sample by a Hsu-Nielsen source. AE signals from propagating acoustic waves were recorded by both sensors. The analysis of changes in the AE signal spectra caused by elastic stresses in the FRP composite material is performed. At low-frequency harmonics of the Fourier spectrum, a shift in the spectrum to the high-frequency region is observed with an increase in the tensile load stress. However, at high frequencies up to 500 kHz, which are informative for recording AE, the effect of tensile stresses becomes nonlinear. The nature of the influence of external stresses on the signal spectrum as a whole is important in identifying the type of AE signal source caused by a certain type of destruction of the FRP composite.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 4 supplement","pages":"S670 - S674"},"PeriodicalIF":0.48,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular Dynamic Modeling in the Study of the Formation of Lipid Nanostructures 分子动力学模型在脂质纳米结构形成研究中的应用
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-02-10 DOI: 10.1134/S106287382471064X
V. A. Dimitreva, S. D. Mashurov, I. S. Vaskan, V. A. Oleinikov, A. V. Zalygin
{"title":"Molecular Dynamic Modeling in the Study of the Formation of Lipid Nanostructures","authors":"V. A. Dimitreva,&nbsp;S. D. Mashurov,&nbsp;I. S. Vaskan,&nbsp;V. A. Oleinikov,&nbsp;A. V. Zalygin","doi":"10.1134/S106287382471064X","DOIUrl":"10.1134/S106287382471064X","url":null,"abstract":"<p>We studied the process of self-assembly of these molecules at the atomic level. The formation of nanoparticles of phospholipid conjugates with α-, β-, and γ-cyclodextrins was modeled using the molecular dynamics method (GROMACS). Models of micelle nanoparticles were obtained, their conformation and size were determined.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 4 supplement","pages":"S654 - S657"},"PeriodicalIF":0.48,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信