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Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika最新文献

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COMPUTER MODELING OF ANISOTROPIC ESR SPECTRA WITH A HYPERFINE STRUCTURE 具有超精细结构的各向异性esr谱的计算机模拟
Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-4-43-50
V. Zhachkin
{"title":"COMPUTER MODELING OF ANISOTROPIC ESR SPECTRA WITH A HYPERFINE STRUCTURE","authors":"V. Zhachkin","doi":"10.18384/2310-7251-2019-4-43-50","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-4-43-50","url":null,"abstract":"Аннотация. Описан способ компьютерного моделирования спектров ЭПР с анизотропными g-фактором и сверхтонкой структурой (СТС). В программе расчёта учтена зависимость ширины индивидуальных резонансных линий поглощения от магнитного квантового числа mI и от угловой ориентации осей симметрии парамагнитного комплекса в магнитном поле. Эффективность метода продемонстрирована на примере модельных спектров ЭПР ионов V и Cu в оксидных стёклах. Ключевые слова: электронный парамагнитный резонанс (ЭПР), компьютерное моделирование, анизотропия g-фактора, сверхтонкая структура (СТС)","PeriodicalId":33476,"journal":{"name":"Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67948624","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
DEFORMATION RATE UNDER SHOCK COMPRESSION IN POLYMERIZED EPOXY RESIN 聚合环氧树脂在冲击压缩下的变形速率
Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-4-90-97
Vadim S. Ziborov, T. A. Rostilov
{"title":"DEFORMATION RATE UNDER SHOCK COMPRESSION IN POLYMERIZED EPOXY RESIN","authors":"Vadim S. Ziborov, T. A. Rostilov","doi":"10.18384/2310-7251-2019-4-90-97","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-4-90-97","url":null,"abstract":"Аннотация. Исследованы ударно-волновые свойства модифицированной эпоксидной смолы Этал-370, полимеризованной отвердителем Этал-45М. Измерена ударная адиабата в координатах массовая скорость – скорость ударной волны; она не отличается от ранее полученных ударных адиабат эпоксидных смол на масштабе исследованного диапазона массовых скоростей. Обнаружено, что степенная зависимость скорости деформации во фронте ударной волны от давления за её фронтом имеет показатель 6,3, что превышает ранее полученную для сплошных твёрдых материалов обобщающую степень 4. Ключевые слова: ударная волна, VISAR, эпоксидная смола, ЭТАЛ-370, ЭТАЛ-45М, ударная адиабата, скорость деформации","PeriodicalId":33476,"journal":{"name":"Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67950236","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
A METHOD FOR INVESTIGATING THE BEHAVIOR OF LIQUID CRYSTALS IN VARIABLE ELECTROMAGNETIC FIELDS 一种研究液晶在变电磁场中的行为的方法
Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-4-51-59
E. Gevorkyan, Stanislav O. Khotkin
{"title":"A METHOD FOR INVESTIGATING THE BEHAVIOR OF LIQUID CRYSTALS IN VARIABLE ELECTROMAGNETIC FIELDS","authors":"E. Gevorkyan, Stanislav O. Khotkin","doi":"10.18384/2310-7251-2019-4-51-59","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-4-51-59","url":null,"abstract":". We present a method for measuring optical transmission in crossed polarizers of a nematic liquid crystal layer under the action of rotating magnetic and variable electric fields. The behavior of a nematic liquid crystal in such fields is considered. An experimental setup implementing the method is designed, where the rotating magnetic field is generated between two NdFeB (neodymium–ferrum–borum) disks installed on a rotating platform. The measurement results of the optical transmission in LC-1289 and the estimates of homogeneity of the magnetic field between the disks are presented.","PeriodicalId":33476,"journal":{"name":"Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67950367","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
THEORY OF DIELECTRIC SUSCEPTIBILITY OF NEMATIC NANOCOMPOSITES DOPED WITH SPHERICAL NANOPARTICLES 掺杂球形纳米颗粒的向列相纳米复合材料的介电磁化率理论
Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-2-14-23
M. Osipov
{"title":"THEORY OF DIELECTRIC SUSCEPTIBILITY OF NEMATIC NANOCOMPOSITES DOPED WITH SPHERICAL NANOPARTICLES","authors":"M. Osipov","doi":"10.18384/2310-7251-2019-2-14-23","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-2-14-23","url":null,"abstract":". A theory of dielectric susceptibility of a nematic liquid crystal doped with isotropic nanoparticles has been developed using a simple model of a spherical nanoparticle embedded into an anisotropic dielectric medium. A simple expression is obtained for the effective polarizability of a nanoparticle in the nematic dielectric matrix. This expression is used in the theory of the macroscopic dielectric susceptibility of the nanocomposite which is developed using the anisotropic Lorentz‒Lorenz equation. Finally, a shift and a splitting of the plasmon resonance of a nanoparticle are calculated determined by the polarizability anisotropy of the liquid crystal host.","PeriodicalId":33476,"journal":{"name":"Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67947224","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: 1
LOCAL CONDUCTIVITY OF A SUBMICRON METAL LAYER WITH ALLOWANCE FOR A CORRECTION TO THE WIEDEMANN-FRANZ LAW 亚微米金属层的局部电导率，考虑到对维德曼-弗朗茨定律的修正
Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-2-74-82
E. V. Zavitaev, O. Rusakov, E. P. Chukhleb
{"title":"LOCAL CONDUCTIVITY OF A SUBMICRON METAL LAYER WITH ALLOWANCE FOR A CORRECTION TO THE WIEDEMANN-FRANZ LAW","authors":"E. V. Zavitaev, O. Rusakov, E. P. Chukhleb","doi":"10.18384/2310-7251-2019-2-74-82","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-2-74-82","url":null,"abstract":"Завитаев Э. В., Русаков О. В., Чухлеб Е. П. 1 Государственный гуманитарно-технологический университет 142611, Московская обл., г. Орехово-Зуево, ул. Зелёная, д. 22, Российская Федерация 2 Центр дополнительного образования «Малая академия наук Импульс» 142432, Московская обл., г. Черноголовка, Школьный бульвар, д. 1, Российская Федерация Аннотация. В статье впервые рассчитана проводимость субмикронного металлического слоя. Учитывается поправка к закону Видемана–Франца при наличии зеркально-диффузного отражения электронов. Ключевые слова: тонкий слой, закон Видемана-Франца, локальная проводимость.","PeriodicalId":33476,"journal":{"name":"Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67947254","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
APPLICATION OF THE VISAR METHOD TO STUDY THE INTERACTION OF THE SHOCK FRONT IN THE GAS AND SOLID SURFACE 应用visar法研究气固表面激波锋的相互作用
Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-1-68-73
V. Ziborov, T. A. Rostilov
{"title":"APPLICATION OF THE VISAR METHOD TO STUDY THE INTERACTION OF THE SHOCK FRONT IN THE GAS AND SOLID SURFACE","authors":"V. Ziborov, T. A. Rostilov","doi":"10.18384/2310-7251-2019-1-68-73","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-1-68-73","url":null,"abstract":". The paper considers the development of experimental methods for the study of physical and chemical processes in shock waves. The VISAR laser interferometry method is used to measure the velocity of a free surface of a solid body interacting with the front of a gas shock wave. For the first time, free surface velocity profiles are obtained in interaction with a shock wave in a light and a relatively heavy gas. It is shown that the method provides a higher temporal resolution than the laser schlieren method applied to shock waves, which makes it promising for measuring the structure of the shock wave front in gases.","PeriodicalId":33476,"journal":{"name":"Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika","volume":"94 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67947371","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: 1
AUXILIARY CIRCLE METHOD IN PLANIMETRIC PROBLEMS OF THE UNIFIED STATE EXAM 统一状态考试平面几何题中的辅助圆法
Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-1-97-106
N. A. Kazakov, T. I. Kuznetsova
{"title":"AUXILIARY CIRCLE METHOD IN PLANIMETRIC PROBLEMS OF THE UNIFIED STATE EXAM","authors":"N. A. Kazakov, T. I. Kuznetsova","doi":"10.18384/2310-7251-2019-1-97-106","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-1-97-106","url":null,"abstract":"","PeriodicalId":33476,"journal":{"name":"Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67947559","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
COMPUTER ANALYSIS OF CHARACTERISTICS OF THIN LC CELLS WITH ANTISYMMETRIC ANGLES OF THE PRE-TILT ON THE ORIENTING SURFACES AT DIFFERENT ANCHORING ENERGIES OF LC MOLECULES AT BORDERS 不同边界lc分子锚定能下定向表面预倾斜角度不对称的薄lc电池特性的计算机分析
Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-3-28-41
G. Simonenko
{"title":"COMPUTER ANALYSIS OF CHARACTERISTICS OF THIN LC CELLS WITH ANTISYMMETRIC ANGLES OF THE PRE-TILT ON THE ORIENTING SURFACES AT DIFFERENT ANCHORING ENERGIES OF LC MOLECULES AT BORDERS","authors":"G. Simonenko","doi":"10.18384/2310-7251-2019-3-28-41","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-3-28-41","url":null,"abstract":"Аннотация. Цель работы – проведение с помощью компьютерного моделирования исследования влияния значений углов преднаклона и энергии сцепления молекул ЖК в тонких ячейках с различными углами закрутки структуры при антисимметричных граничных условиях на их оптические и динамические характеристики. В результате показано, что увеличение значений углов преднаклона молекул ЖК на ориентирующих поверхностях ячеек приводит к незначительному росту контрастного отношения в ЖК ячейках с углами закрутки, равными 0°, 90° и 270°, при незначительном изменении полного времени срабатывания таких ячеек. В ЖК ячейках с углом закрутки структуры 180° увеличение значения угла преднаклона приводит к уменьшению контрастного отношения и одновременному росту полного времени срабатывания таких устройств. В то же время уменьшение энергии сцепления в тонких ЖК ячейках с антисимметричными граничными условиями приводит к увеличению полного времени срабатывания таких модуляторов для всех углов закрутки структуры ЖК. Однако для различных углов закрутки структуры ЖК контрастное отношение с уменьшением энергии сцепления молекул ЖК с подложками ведет себя другим образом. Так, для структур с углами закрутки 180° и 270° контрастное отношение тонких ЖК ячеек с уменьшением энергии сцепления существенно уменьшается, а для структур с углами закрутки 0° и 90° с уменьшением энергии сцепление контрастное отношение незначительно растет. Ключевые слова: жидкий кристалл, моделирование, граничные условия","PeriodicalId":33476,"journal":{"name":"Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67948806","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
ISOTHERMAL PRINCIPLE OF VIRTUAL WORK 虚功等温原理
Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-4-17-21
V. Sokolov
{"title":"ISOTHERMAL PRINCIPLE OF VIRTUAL WORK","authors":"V. Sokolov","doi":"10.18384/2310-7251-2019-4-17-21","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-4-17-21","url":null,"abstract":"The isothermal principle of virtual work for a compressible liquid continuum is derived using the equilibrium thermodynamics. The conditions for a mechanical equilibrium in the volume and on the surface of a compressible liquid continuum are obtained.","PeriodicalId":33476,"journal":{"name":"Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67949138","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
MAGNETIC FORCE LINES OF THE EARTH UNDER THE CONDITIONS OF ITS ROTATION 地球自转条件下的磁力线
Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-4-70-76
S. Gladkov
{"title":"MAGNETIC FORCE LINES OF THE EARTH UNDER THE CONDITIONS OF ITS ROTATION","authors":"S. Gladkov","doi":"10.18384/2310-7251-2019-4-70-76","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-4-70-76","url":null,"abstract":". Magnetic force lines of the Earth are shown strictly analytically to fill some continuous class of surfaces and are obtained from the solution to the equation of magnetostatics. It is proven that their origin is a consequence of the effect of the Earth’s rotation.","PeriodicalId":33476,"journal":{"name":"Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67949897","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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