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

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Confirmation of the Mechanism of Formation of Tropical Cyclones by ECMWF ERA5 Reanalysis Data ECMWF ERA5再分析资料对热带气旋形成机制的证实
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-05-08 DOI: 10.1134/S1062873825715454
I. V. Mingalev, V. M. Chechetkin, K. G. Orlov, E. A. Fedotova, V. S. Mingalev
{"title":"Confirmation of the Mechanism of Formation of Tropical Cyclones by ECMWF ERA5 Reanalysis Data","authors":"I. V. Mingalev,&nbsp;V. M. Chechetkin,&nbsp;K. G. Orlov,&nbsp;E. A. Fedotova,&nbsp;V. S. Mingalev","doi":"10.1134/S1062873825715454","DOIUrl":"10.1134/S1062873825715454","url":null,"abstract":"<p>The ECMWF ERA5 reanalysis data on the formation of a pair of tropical cyclones GONY and ATSANI in the western Pacific Ocean from August 11 to 15, 2015, are compared with previously obtained results of numerical modeling of cyclonic vortex formation over tropical seas. It is shown that the reanalysis data confirm the physical mechanism of formation of cyclonic vortices that was formulated in our previous works.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 3","pages":"415 - 421"},"PeriodicalIF":0.48,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829785","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
Behavior of Magnetic Fluid Droplets in a Microfluidic Chip in a Inhomogeneous Magnetic Field 微流控芯片中磁滴在非均匀磁场中的行为
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-05-08 DOI: 10.1134/S1062873825715466
D. A. Kalyuzhnaya, E. A. Sokolov, K. A. Matarykin, P. A. Ryapolov
{"title":"Behavior of Magnetic Fluid Droplets in a Microfluidic Chip in a Inhomogeneous Magnetic Field","authors":"D. A. Kalyuzhnaya,&nbsp;E. A. Sokolov,&nbsp;K. A. Matarykin,&nbsp;P. A. Ryapolov","doi":"10.1134/S1062873825715466","DOIUrl":"10.1134/S1062873825715466","url":null,"abstract":"<p>The dynamics of magnetic fluid droplets formed in a microfluidic chip was investigated. The magnetic field was formed by two neodymium magnets located parallel to each other, which were moved relative to the microchannel during the experiment. The strength of the magnetic field acting on a magnetic drop was determined experimentally and using the FEMM 4.2 software package.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 3","pages":"444 - 450"},"PeriodicalIF":0.48,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830100","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
Contribution of Poloidal Pc4 Pulsations to the Acceleration of Electrons to Relativistic Energies in the Outer Radiation Belt 极向Pc4脉冲对外辐射带中电子向相对论能量加速的贡献
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-05-08 DOI: 10.1134/S1062873825715338
V. B. Belakhovsky, V. A. Pilipenko
{"title":"Contribution of Poloidal Pc4 Pulsations to the Acceleration of Electrons to Relativistic Energies in the Outer Radiation Belt","authors":"V. B. Belakhovsky,&nbsp;V. A. Pilipenko","doi":"10.1134/S1062873825715338","DOIUrl":"10.1134/S1062873825715338","url":null,"abstract":"<p>The occurrence of poloidal Pc4 pulsations was registered on the GOES geostationary satellites during 4 days from October 3 to 6, 2013, which coincided with the growth of electron fluxes with energies &gt;2 MeV, 475 keV. It is hypothesized that Pc4 pulsations excited by energetic protons may participate in the acceleration of electrons to relativistic energies in the Earth’s outer radiation belt.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 3","pages":"344 - 353"},"PeriodicalIF":0.48,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830098","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
High-Sensitivity Inductive Sensors with Resonant Differential Filters and STM32 Microcontroller for Magnetic Particle Detection 高灵敏度感应传感器与谐振差分滤波器和STM32微控制器的磁颗粒检测
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-05-08 DOI: 10.1134/S106287382571548X
A. Acuna Perez, E. V. Shevchenko, A. V. Koshkin, N. A. Yudanov, L. V. Panina, V. G. Kolesnikova, A. A. Ignatov, V. V. Rodionova
{"title":"High-Sensitivity Inductive Sensors with Resonant Differential Filters and STM32 Microcontroller for Magnetic Particle Detection","authors":"A. Acuna Perez,&nbsp;E. V. Shevchenko,&nbsp;A. V. Koshkin,&nbsp;N. A. Yudanov,&nbsp;L. V. Panina,&nbsp;V. G. Kolesnikova,&nbsp;A. A. Ignatov,&nbsp;V. V. Rodionova","doi":"10.1134/S106287382571548X","DOIUrl":"10.1134/S106287382571548X","url":null,"abstract":"<p>A high-sensitivity inductive sensor for detecting composite particles with different Fe<sub>3</sub>O<sub>4</sub> phase contents based on differential resonance circuit with planar coils, controlled by STM32 microcontroller is developed. The measurements demonstrate a nearly linear dependence of the output voltage on the concentration of magnetic phase, with a sensitivity amounting to about 14 mV/wt %.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 3","pages":"464 - 470"},"PeriodicalIF":0.48,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830099","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 Temperature on the Optical Properties of Magnetic Fluids Containing Aggregates of Nanoparticles 温度对含纳米粒子聚集体磁流体光学性质的影响
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-05-08 DOI: 10.1134/S1062873825715417
V. I. Vivchar, C. V. Yerin
{"title":"Effect of Temperature on the Optical Properties of Magnetic Fluids Containing Aggregates of Nanoparticles","authors":"V. I. Vivchar,&nbsp;C. V. Yerin","doi":"10.1134/S1062873825715417","DOIUrl":"10.1134/S1062873825715417","url":null,"abstract":"<p>The influence of temperature on the optical properties of an aggregation-prone magnetic fluid was studied. It was found that temperature affects magnetic birefringence and dichroism, as well as light scattering and transparency of samples. These effects may be associated with a decrease in the size of magnetite nanoparticle aggregates upon heating.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 3","pages":"436 - 443"},"PeriodicalIF":0.48,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830120","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
Longitudinal Dependence of Electron Concentration in the Earth’s Plasmasphere at L = 2.5 L = 2.5时地球等离子层电子浓度的纵向依赖性
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-05-08 DOI: 10.1134/S1062873825715387
D. V. Chugunin, G. A. Kotova
{"title":"Longitudinal Dependence of Electron Concentration in the Earth’s Plasmasphere at L = 2.5","authors":"D. V. Chugunin,&nbsp;G. A. Kotova","doi":"10.1134/S1062873825715387","DOIUrl":"10.1134/S1062873825715387","url":null,"abstract":"<p>We studied the dependence of the electron concentration in the night plasmasphere on the geographic longitude at 2.5 Earth radii in the equatorial plane. The dependence is studied for times when more than 5 days have passed since strong geomagnetic disturbances. It is shown that the electron concentration at the same magnetic latitude at the same local time can differ by 2.5 times at different geographic longitudes. In addition, it is shown that the distribution of electron concentration by longitude depends on the season (winter/summer).</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 3","pages":"387 - 392"},"PeriodicalIF":0.48,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830163","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 Field-Aligned Currents in Two Hemispheres in the Spring Interval of Stationary Convection 静止对流春季区间两半球场向流动力学
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-05-08 DOI: 10.1134/S1062873825715314
V. V. Mishin, M. A. Kurikalova, R. A. Marchuk, Yu. V. Penskikh
{"title":"Dynamics of Field-Aligned Currents in Two Hemispheres in the Spring Interval of Stationary Convection","authors":"V. V. Mishin,&nbsp;M. A. Kurikalova,&nbsp;R. A. Marchuk,&nbsp;Yu. V. Penskikh","doi":"10.1134/S1062873825715314","DOIUrl":"10.1134/S1062873825715314","url":null,"abstract":"<p>The magnetogram inversion technique was applied to the onground data of the SuperMAG project to examine the distribution dynamics of field-aligned currents (FACs) in the ionosphere of both hemispheres during an interval of stationary magnetospheric convection at IMF <i>B</i><sub>Y</sub> &lt; 0. It was shown that in the absence of explosive processes, a quadrant asymmetry in the FAC distribution occurs. During substorms, FACs predominated in the dawn sector in both hemispheres. Enhancement in both electrojets is accompanied by PiB pulsations.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 3","pages":"327 - 335"},"PeriodicalIF":0.48,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830122","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 Reversal in Low-Curie Amorphous Microwires for Wireless Temperature Sensors 用于无线温度传感器的低居里非晶微线的磁化反转
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-05-08 DOI: 10.1134/S1062873825715491
A. Acuna Perez, N. A. Yudanov, L. V. Panina
{"title":"Magnetization Reversal in Low-Curie Amorphous Microwires for Wireless Temperature Sensors","authors":"A. Acuna Perez,&nbsp;N. A. Yudanov,&nbsp;L. V. Panina","doi":"10.1134/S1062873825715491","DOIUrl":"10.1134/S1062873825715491","url":null,"abstract":"<p>The temperature behavior of magnetic hysteresis loops and the harmonic spectrum of induced voltage in amorphous microwires with different magnetic anisotropy have been investigated. The type of magnetic anisotropy retains up to the Curie temperature. The analysis of the harmonic spectrum has revealed a decrease in the amplitudes of odd harmonics, proportional to the saturation magnetization, near the Curie temperature.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 3","pages":"479 - 483"},"PeriodicalIF":0.48,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830096","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 Mechanical Stresses on the Blocking Temperature of the Core/Shell Nanoparticle System 机械应力对核/壳纳米颗粒体系阻滞温度的影响
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-05-08 DOI: 10.1134/S1062873825715478
L. L. Afremov, I. G. Iliushin, A. N. Tyurenkov, P. S. Mushtuk, T. N. Gnitetskaya
{"title":"Effect of Mechanical Stresses on the Blocking Temperature of the Core/Shell Nanoparticle System","authors":"L. L. Afremov,&nbsp;I. G. Iliushin,&nbsp;A. N. Tyurenkov,&nbsp;P. S. Mushtuk,&nbsp;T. N. Gnitetskaya","doi":"10.1134/S1062873825715478","DOIUrl":"10.1134/S1062873825715478","url":null,"abstract":"<p>Within the framework of the theory of magnetization of two-phase particles, a study was conducted on the dependence of the blocking temperature <span>({{T}_{{text{B}}}})</span> of <span>({text{F}}{{{text{e}}}_{3}}{{{text{O}}}_{4}}{text{/F}}{{{text{e}}}_{{3 - x}}}{text{T}}{{{text{i}}}_{x}}{{{text{O}}}_{4}})</span> core/shell nanoparticles on mechanical stress σ and titanium concentration <span>({{x}_{0}})</span> before decomposition. With increasing compression, <span>({{T}_{{text{B}}}})</span> changes nonmonotonically. It was been that <span>({{T}_{{{text{B}},{text{min}}}}})</span> and σ<sub>min</sub> increase with increasing nanoparticle core size, while the initial titanium concentration <span>({{x}_{0}})</span> has virtually no effect on either parameter.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 3","pages":"458 - 463"},"PeriodicalIF":0.48,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830101","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
Comparative Analysis of the Influence of Pg and Pc6 Geomagnetic Pulsations on the Growth of Geomagnetically Induced Currents in Power Lines of the Murmansk Region Pg和Pc6地磁脉动对摩尔曼斯克地区电力线地磁感应电流增长影响的对比分析
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-05-08 DOI: 10.1134/S106287382571534X
V. B. Belakhovsky, V. A. Pilipenko, Ya. A. Sakharov, V. N. Selivanov
{"title":"Comparative Analysis of the Influence of Pg and Pc6 Geomagnetic Pulsations on the Growth of Geomagnetically Induced Currents in Power Lines of the Murmansk Region","authors":"V. B. Belakhovsky,&nbsp;V. A. Pilipenko,&nbsp;Ya. A. Sakharov,&nbsp;V. N. Selivanov","doi":"10.1134/S106287382571534X","DOIUrl":"10.1134/S106287382571534X","url":null,"abstract":"<p>The influence of geomagnetic pulsations of different frequencies (Pg and Pc6) and approximately the same amplitude on the growth of geomagnetically induced currents (GIC) recorded in power transmission lines on the Kola Peninsula was analyzed for the case of September 25, 2017. Pg pulsations lead to a greater value of the geomagnetic field variability <i>dB</i>/<i>dt</i>, but the amplitude of the GIC during the occurrence of Pg and Pc6 pulsations is the same. When predicting the GIC, it is necessary to take into account not only <i>dB</i>/<i>dt</i>, but also the frequency of geomagnetic disturbances.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 3","pages":"354 - 363"},"PeriodicalIF":0.48,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830123","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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