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
Electric Field-Induced Dynamics of Topological Loops in Chiral Nematic Liquid Crystal Droplets 手性向列液晶液滴拓扑环的电场诱导动力学
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-05-05 DOI: 10.1134/S1062873824710237
Yu. I. Timirov, O. A. Skaldin, V. A. Delev, E. R. Basyrova
{"title":"Electric Field-Induced Dynamics of Topological Loops in Chiral Nematic Liquid Crystal Droplets","authors":"Yu. I. Timirov,&nbsp;O. A. Skaldin,&nbsp;V. A. Delev,&nbsp;E. R. Basyrova","doi":"10.1134/S1062873824710237","DOIUrl":"10.1134/S1062873824710237","url":null,"abstract":"<p>An experimental study is performed of structural transitions in droplets of a chiral nematic liquid crystal under the action of an alternating electric field. It is established that raising the applied voltage results in a periodic transition between bipolar and radial structures.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 3","pages":"421 - 425"},"PeriodicalIF":0.48,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908618","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
Effective Way of Calculating the Wigner Function of a Bright Banana State 香蕉亮态维格纳函数的有效计算方法
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-05-05 DOI: 10.1134/S1062873824710328
B. N. Nougmanov
{"title":"Effective Way of Calculating the Wigner Function of a Bright Banana State","authors":"B. N. Nougmanov","doi":"10.1134/S1062873824710328","DOIUrl":"10.1134/S1062873824710328","url":null,"abstract":"<p>One of the simplest ways of obtaining non-Gaussian states of light is to pass Gaussian states through a nonlinear medium. This work studies the self-regulation of coherent states in a Kerr nonlinear Hamiltonian in terms of the quasi-probability Wigner function for a large average number of quanta.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 3","pages":"466 - 470"},"PeriodicalIF":0.48,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908623","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
Noncovalent Structures of Negative Ions in Dissociative Electron Capture Spectra 离解电子俘获谱中负离子的非共价结构
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-05-05 DOI: 10.1134/S1062873824710067
N. L. Asfandiarov, M. V. Muftakhov, R. G. Rakhmeyev, S. A. Pshenichnyuk
{"title":"Noncovalent Structures of Negative Ions in Dissociative Electron Capture Spectra","authors":"N. L. Asfandiarov,&nbsp;M. V. Muftakhov,&nbsp;R. G. Rakhmeyev,&nbsp;S. A. Pshenichnyuk","doi":"10.1134/S1062873824710067","DOIUrl":"10.1134/S1062873824710067","url":null,"abstract":"<p>Examples of the so-called noncovalent structures of anions are reviewed. Their geometry differs significantly from the geometry of the original molecules; in particular, the lengths of carbon–halogen bonds are ∼2.7–3 Å, and the halogen atom itself can circle the hydrocarbon skeleton of the anion (the so-called roaming). Such noncovalent structures can have a significantly higher electron affinity than the original molecules.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 3","pages":"334 - 339"},"PeriodicalIF":0.48,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908761","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
Using Printing Technologies to Form Functional Copoly(arylene ether ketone) Films for Flexible Electronics 用印刷技术制备柔性电子用功能性共聚（芳醚酮）薄膜
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-05-05 DOI: 10.1134/S1062873824710183
A. F. Galiev, M. S. Ishmukhametov, N. S. Bulankin, V. R. Karimov, A. A. Lachinov
{"title":"Using Printing Technologies to Form Functional Copoly(arylene ether ketone) Films for Flexible Electronics","authors":"A. F. Galiev,&nbsp;M. S. Ishmukhametov,&nbsp;N. S. Bulankin,&nbsp;V. R. Karimov,&nbsp;A. A. Lachinov","doi":"10.1134/S1062873824710183","DOIUrl":"10.1134/S1062873824710183","url":null,"abstract":"<p>Conditions are studied for the formation of copoly(arylene ether ketones) films via layer-by-layer deposition. The possibility is established of obtaining films with minimum thicknesses up to 1 μm via layer-by-layer deposition with electroactivity and sensitivity to changes in environmental conditions (humidity and temperature). Results can be used to develop additive printing technology for flexible electronics.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 3","pages":"396 - 400"},"PeriodicalIF":0.48,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908767","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
Micromagnetic Modeling of Skyrmions in Ferro- and Ferrimagnetic Structures 铁磁和铁磁结构中Skyrmions的微磁建模
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-05-05 DOI: 10.1134/S1062873824710110
V. D. Bessonov, A. V. Ognev, S. V. Batalov, A. V. Telegin
{"title":"Micromagnetic Modeling of Skyrmions in Ferro- and Ferrimagnetic Structures","authors":"V. D. Bessonov,&nbsp;A. V. Ognev,&nbsp;S. V. Batalov,&nbsp;A. V. Telegin","doi":"10.1134/S1062873824710110","DOIUrl":"10.1134/S1062873824710110","url":null,"abstract":"<p>Micromagnetic modeling of the mechanisms and conditions of existence of skyrmions in ferro- and ferrimagnetic systems was performed. The features of current-induced skyrmion motion were studied as functions of the strength of the Dzyaloshinskii–Moriya interaction, saturation magnetization, magnetic anisotropy, and the Gilbert damping. Ferrimagnetic systems were shown to be promising for investigation of skyrmions.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 3","pages":"362 - 366"},"PeriodicalIF":0.48,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908795","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
Micromagnetic States and Bloch Points in Multilayer Nanofilms: Influence of Anisotropy and Magnetic Field 多层纳米膜的微磁态和Bloch点：各向异性和磁场的影响
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-05-05 DOI: 10.1134/S1062873824710122
V. V. Filippova, Z. V. Gareeva
{"title":"Micromagnetic States and Bloch Points in Multilayer Nanofilms: Influence of Anisotropy and Magnetic Field","authors":"V. V. Filippova,&nbsp;Z. V. Gareeva","doi":"10.1134/S1062873824710122","DOIUrl":"10.1134/S1062873824710122","url":null,"abstract":"<p>Processes of magnetization reversal of an exchange-coupled magnetic nanostructure were numerically sumilated, micromagnetic states in the system and their transformation under the influence of an external magnetic field were studied, and the possibility of realizing magnetic states of the Bloch point type was shown. The influence of magnetic anisotropy constants of the easy plane type on the conditions of existence and structure of topological objects was investigated.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 3","pages":"367 - 372"},"PeriodicalIF":0.48,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908796","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 Sagnac Effect in the Spacetime of Tidal-Charge Black Holes 潮汐电荷黑洞时空中的萨格纳克效应
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-05-05 DOI: 10.1134/S1062873824710298
R. Kh. Karimov, R. N. Izmailov, R. M. Yusupova, A. Bhattacharya
{"title":"The Sagnac Effect in the Spacetime of Tidal-Charge Black Holes","authors":"R. Kh. Karimov,&nbsp;R. N. Izmailov,&nbsp;R. M. Yusupova,&nbsp;A. Bhattacharya","doi":"10.1134/S1062873824710298","DOIUrl":"10.1134/S1062873824710298","url":null,"abstract":"<p>The authors study the Sagnac effect in the space-time of a spinning black hole with tidal charge β. It is shown that the strongest influence of the tidal (electric) charge is observed close to the black hole. An increase in the tidal charge lengthens the Sagnac delay. Numerical estimates show that the Sagnac delay for the Earth is determined in the range of –63.8 to –1.5 ns.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 3","pages":"453 - 457"},"PeriodicalIF":0.48,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908602","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
Analysis of the Effect of a Recurrent Neural Network Size on Modeling and Prediction Accuracy of a Stochastic FitzHugh–Nagumo Neuron 递归神经网络大小对随机FitzHugh-Nagumo神经元建模和预测精度的影响分析
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-05-05 DOI: 10.1134/S106287382471033X
N. D. Kulagin, A. V. Andreev, A. E. Hramov
{"title":"Analysis of the Effect of a Recurrent Neural Network Size on Modeling and Prediction Accuracy of a Stochastic FitzHugh–Nagumo Neuron","authors":"N. D. Kulagin,&nbsp;A. V. Andreev,&nbsp;A. E. Hramov","doi":"10.1134/S106287382471033X","DOIUrl":"10.1134/S106287382471033X","url":null,"abstract":"<p>We study the performance of a reservoir computing-based network in dynamics forecast of a FitzHugh–Nagumo model driven by white noise versus reservoir size. We show that the accuracy of signal prediction of a model neuron strongly depends on the number of neurons in the reservoir. The most accurate prediction of both the dynamics itself and the simulation of the coherence resonance phenomenon is achieved when using 500 neurons.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 3","pages":"471 - 475"},"PeriodicalIF":0.48,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908621","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
Photoinduced Electron Transfer in Deferiprone Chelate Complexes with Nontransition Metal Ions 非过渡金属离子的去铁螯合物的光诱导电子转移
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-05-05 DOI: 10.1134/S1062873824710079
V. A. Timoshnikov, O. Yu. Selyutina, V. P. Grivin, E. M. Glebov, N. E. Polyakov
{"title":"Photoinduced Electron Transfer in Deferiprone Chelate Complexes with Nontransition Metal Ions","authors":"V. A. Timoshnikov,&nbsp;O. Yu. Selyutina,&nbsp;V. P. Grivin,&nbsp;E. M. Glebov,&nbsp;N. E. Polyakov","doi":"10.1134/S1062873824710079","DOIUrl":"10.1134/S1062873824710079","url":null,"abstract":"<p>Chemically induced dynamic nuclear polarization and laser flash photolysis are used to study the formation and photodegradation of deferiprone chelate complexes with calcium and zinc ions. Deferiprone in the complexes degrades rapidly under the action of ultraviolet radiation. Radical intermediates of deferiprone are registered, and the quantum yield of its photodegradation in a complex with zinc grows by 6.4 times.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 3","pages":"340 - 346"},"PeriodicalIF":0.48,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908763","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
Electronic Gas Sensors Based on Polymer and Nanocomposite Materials 基于聚合物和纳米复合材料的电子气体传感器
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-05-05 DOI: 10.1134/S106287382471016X
R. B. Salikhov, A. D. Ostaltsova, T. R. Salikhov
{"title":"Electronic Gas Sensors Based on Polymer and Nanocomposite Materials","authors":"R. B. Salikhov,&nbsp;A. D. Ostaltsova,&nbsp;T. R. Salikhov","doi":"10.1134/S106287382471016X","DOIUrl":"10.1134/S106287382471016X","url":null,"abstract":"<p>The paper focuses on nanocomposite thin films based on a polyelectrolyte complex of chitosan and chitosan succinimide with a filler in the form of single-walled carbon nanotubes and thin films of polyaniline derivatives. The effect of thin film morphology on electrical conductivity, sensory sensitivity to air humidity for thin-film structures based on them, and reaction to ammonia vapors were studied.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 3","pages":"386 - 390"},"PeriodicalIF":0.48,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908765","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：604180095
Book学术官方微信