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

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Motion of a Thin Layer of a Magnetic Fluid near a Magnetizable Body in a Uniform Magnetic Field 均匀磁场中可磁化体附近磁性流体薄层的运动
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-29 DOI: 10.1134/S1062873824708006
O. A. Sharova, D. A. Pelevina, V. A. Naletova
{"title":"Motion of a Thin Layer of a Magnetic Fluid near a Magnetizable Body in a Uniform Magnetic Field","authors":"O. A. Sharova,&nbsp;D. A. Pelevina,&nbsp;V. A. Naletova","doi":"10.1134/S1062873824708006","DOIUrl":"10.1134/S1062873824708006","url":null,"abstract":"<p>Theoretical and experimental studies were made of the flow of a thin layer of a magnetic fluid along a horizontal plane near an immobile magnetizable cylindrical body in an applied uniform vertical magnetic field. The shapes of the surface of the magnetic fluid at different times were constructed. The influence of the applied field on the flow of the layer was investigated.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 10","pages":"1642 - 1647"},"PeriodicalIF":0.48,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540793","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
Influence of Gyromagnetic Effects on Magnetization of Magnetic Fluids 回磁效应对磁性流体磁化的影响
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-29 DOI: 10.1134/S1062873824707992
A. N. Tyatyushkin
{"title":"Influence of Gyromagnetic Effects on Magnetization of Magnetic Fluids","authors":"A. N. Tyatyushkin","doi":"10.1134/S1062873824707992","DOIUrl":"10.1134/S1062873824707992","url":null,"abstract":"<p>The influence of gyromagnetic effects on magnetization of a magnetic fluid modeled as a suspension of spherical rigidly magnetized particles in a uniform magnetic field was theoretically investigated. An expression for the magnetization of the suspension was obtained. The parameter that determines the influence of the gyromagnetic effects was estimated.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 10","pages":"1530 - 1534"},"PeriodicalIF":0.48,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540763","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
Dynamics of Floating Droplets of a Magnetic Liquid in Glycerol in a Flat Channel under the Influence of a Magnetic Field 磁场影响下扁平通道中甘油中磁性液体的浮动液滴动力学
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-29 DOI: 10.1134/S1062873824707967
E. A. Sokolov, D. A. Kalyuzhnaya, A. A. Pribylov, R. E. Politov, P. A. Ryapolov
{"title":"Dynamics of Floating Droplets of a Magnetic Liquid in Glycerol in a Flat Channel under the Influence of a Magnetic Field","authors":"E. A. Sokolov,&nbsp;D. A. Kalyuzhnaya,&nbsp;A. A. Pribylov,&nbsp;R. E. Politov,&nbsp;P. A. Ryapolov","doi":"10.1134/S1062873824707967","DOIUrl":"10.1134/S1062873824707967","url":null,"abstract":"<p>Results are presented from studying the effect the magnitude of a magnetic field and the concentration of the magnetic phase of a magnetic fluid (MF) have on the coefficient of elongation and the shape of a drop of the MF floating in glycerol. Dependences are obtained for the MF droplet’s coefficient of elongation on the parameters of the magnetic fluids that are used and the strength of the magnetic field.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 10","pages":"1636 - 1641"},"PeriodicalIF":0.48,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540519","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 Vibrational Spectroscopy and Ab Initio Calculations to Study Hydrogen-Bonded Complexes in Aqueous Solutions of Acetylacetone 利用振动光谱和 Ab Initio 计算研究乙酰丙酮水溶液中的氢键配合物
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-29 DOI: 10.1134/S106287382470802X
A. A. Jumabaev, H. A. Hushvaktov, A. A. Absanov, B. B. Khudaykulov, U. A. Holikulov, A. M. Norkulov
{"title":"Using Vibrational Spectroscopy and Ab Initio Calculations to Study Hydrogen-Bonded Complexes in Aqueous Solutions of Acetylacetone","authors":"A. A. Jumabaev,&nbsp;H. A. Hushvaktov,&nbsp;A. A. Absanov,&nbsp;B. B. Khudaykulov,&nbsp;U. A. Holikulov,&nbsp;A. M. Norkulov","doi":"10.1134/S106287382470802X","DOIUrl":"10.1134/S106287382470802X","url":null,"abstract":"<p>The authors study Raman scattering and FTIR absorption spectra of pure acetylacetone and aqueous solutions of it at room temperature and atmospheric pressure. Results from experiments and calculations show that a red shift of the C=O stretching vibrational band and a blue shift of the C–H stretching vibrational band are observed when the amount of acetylacetone in a solution is reduced. The distribution of potential energy is analyzed for the monomeric molecule of the keto form of acetylacetone. The calculated and observed frequencies of vibration are in good agreement. It is shown that acetylacetone creates molecular clusters with water molecules in the form of C=O…H and C–H…O hydrogen bonds, altering the shape of the spectral bands.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 10","pages":"1660 - 1667"},"PeriodicalIF":0.48,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540584","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
Magnetization of Small Multi-Core Particles: Theory and Computer Modeling 多核小粒子的磁化：理论与计算机建模
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-29 DOI: 10.1134/S1062873824707827
E. V. Grokhotova, A. Yu. Solovyova, E. A. Elfimova
{"title":"Magnetization of Small Multi-Core Particles: Theory and Computer Modeling","authors":"E. V. Grokhotova,&nbsp;A. Yu. Solovyova,&nbsp;E. A. Elfimova","doi":"10.1134/S1062873824707827","DOIUrl":"10.1134/S1062873824707827","url":null,"abstract":"<p>The authors study the orientational texturing of the magnetic moments of four magnetic nanoparticles fixed in the vertices of a regular tetrahedron and forming a separate multi-core particle. Monte Carlo calculations are used to obtain numerically the probability density of magnetic moment orientation, static magnetization, and the initial magnetic susceptibility of a multi-core particle.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 10","pages":"1561 - 1566"},"PeriodicalIF":0.48,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540747","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
Numerical Calculation of Electric Field Enhancement in Neutron Traps with Rough Walls Coated with Superfluid Helium 带超流体氦涂层粗糙壁的中子捕获器中的电场增强数值计算
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-14 DOI: 10.1134/S1062873824707712
V. D. Kochev, T. I. Mogilyuk, S. S. Kostenko, P. D. Grigoriev
{"title":"Numerical Calculation of Electric Field Enhancement in Neutron Traps with Rough Walls Coated with Superfluid Helium","authors":"V. D. Kochev,&nbsp;T. I. Mogilyuk,&nbsp;S. S. Kostenko,&nbsp;P. D. Grigoriev","doi":"10.1134/S1062873824707712","DOIUrl":"10.1134/S1062873824707712","url":null,"abstract":"<p>A film of liquid helium on the surface of material traps for ultracold neutrons protects the neutrons from being absorbed by the trap walls. By using surface roughness and an electrostatic field, it is possible to maintain a helium film of sufficient thickness throughout the height of the trap. The field distribution near the tip of such wall roughness of the trap was calculated, and the effect of this field on holding the helium film was estimated.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 9","pages":"1472 - 1477"},"PeriodicalIF":0.48,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434874","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
Studying the Effect of the Period of Mechanical Activation on the Formation of Ni3Al-Based High-Legered Alloys Obtained via Spark Plasma Sintering 研究机械活化期对通过火花等离子烧结获得的 Ni3Al 基高阶合金形成的影响
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-14 DOI: 10.1134/S1062873824707700
L. I. Shevtsova, M. A. Esikov, A. I. Gavrilov, E. A. Lojkina, D. E. Shevtsov, Ya. A. Merzlikina
{"title":"Studying the Effect of the Period of Mechanical Activation on the Formation of Ni3Al-Based High-Legered Alloys Obtained via Spark Plasma Sintering","authors":"L. I. Shevtsova,&nbsp;M. A. Esikov,&nbsp;A. I. Gavrilov,&nbsp;E. A. Lojkina,&nbsp;D. E. Shevtsov,&nbsp;Ya. A. Merzlikina","doi":"10.1134/S1062873824707700","DOIUrl":"10.1134/S1062873824707700","url":null,"abstract":"<p>The authors study compacted materials obtained using different periods of the mechanical activation of mixtures whose compositions correspond to alloys of grades VKNA-1V and VKNA-4U, with subsequent electric spark sintering. The maximum strengths of the compacted materials are reached after 3.5 min of mechanical activation: 1200 MPa for VKNA-1V and 1100 MPa for VKNA-4U.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 9","pages":"1465 - 1471"},"PeriodicalIF":0.48,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434876","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
Python Processing of Data from a Pulsed Thermophysical Experiment 用 Python 处理脉冲热物理实验数据
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-14 DOI: 10.1134/S1062873824707591
A. A. Gubin, A. A. Marchukova, I. I. Povolotskiy, D. V. Volosnikov
{"title":"Python Processing of Data from a Pulsed Thermophysical Experiment","authors":"A. A. Gubin,&nbsp;A. A. Marchukova,&nbsp;I. I. Povolotskiy,&nbsp;D. V. Volosnikov","doi":"10.1134/S1062873824707591","DOIUrl":"10.1134/S1062873824707591","url":null,"abstract":"<p>An algorithm and original software are developed for obtaining and post-processing an experimental data array. The controlled pulsed heating of a probe is used to study the transfer of heat in liquid binary media and their phase diagrams, including the region of short-term superheated states. The Python program is tested by analyzing 1250 files containing more than 10<sup>7</sup> values.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 9","pages":"1388 - 1394"},"PeriodicalIF":0.48,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434862","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
Processes in the Electronic System of Solid Solutions of Bismuth and Antimony Tellurides in the Range of Observation of the Anomalous Temperature Dependence of the Hall Coefficient 霍尔系数异常温度依赖观测范围内铋和锑碲化物固溶体电子系统的过程
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-14 DOI: 10.1134/S106287382470761X
N. P. Stepanov, M. S. Ivanov
{"title":"Processes in the Electronic System of Solid Solutions of Bismuth and Antimony Tellurides in the Range of Observation of the Anomalous Temperature Dependence of the Hall Coefficient","authors":"N. P. Stepanov,&nbsp;M. S. Ivanov","doi":"10.1134/S106287382470761X","DOIUrl":"10.1134/S106287382470761X","url":null,"abstract":"<p>The temperature dependences of electrical conductivity and Hall coefficient in single crystals of bismuth and antimony tellurides were studied. In samples with a high content of antimony telluride, a decrease in Hall mobility in the range of liquid nitrogen temperatures was found, which indicates the presence of an additional mechanism for charge carrier scattering.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 9","pages":"1402 - 1407"},"PeriodicalIF":0.48,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434868","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
Plasma Spheroidization of Al–Zn–Mg–Fe–Ni Alloy Powders for Selective Laser Melting 用于选择性激光熔化的铝锌镁铪合金粉的等离子球形化
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-14 DOI: 10.1134/S1062873824707608
A. O. Kuryshev, A. N. Petrova, I. G. Brodova, D. Yu. Rasposienko, V. V. Astafiev, I. G. Shirinkina, S. I. Novikov, S. A. Ilyinyh
{"title":"Plasma Spheroidization of Al–Zn–Mg–Fe–Ni Alloy Powders for Selective Laser Melting","authors":"A. O. Kuryshev,&nbsp;A. N. Petrova,&nbsp;I. G. Brodova,&nbsp;D. Yu. Rasposienko,&nbsp;V. V. Astafiev,&nbsp;I. G. Shirinkina,&nbsp;S. I. Novikov,&nbsp;S. A. Ilyinyh","doi":"10.1134/S1062873824707608","DOIUrl":"10.1134/S1062873824707608","url":null,"abstract":"<p>An investigation is performed of the effect produced by the technological parameters of a complex procedure for obtaining 3D printing powder of a new Nikalin aluminum alloy during dispersion in a ball mill, with the subsequent spheroidization of particles while processing the plasma.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"88 9","pages":"1395 - 1401"},"PeriodicalIF":0.48,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434861","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
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