Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika最新文献_第8页

GEOMETRIC AND ALGEBRAIC PROPERTIES OF FIRST-ORDER DIFFERENTIAL EQUATIONS ON SMOOTH FINITE-DIMENSIONAL REAL MANIFOLDS 光滑有限维实流形上一阶微分方程的几何和代数性质

Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-2-6-13

S. B. Zabelina, T. Marchenko, O. Matveyev, I. Pinchuk

引用次数: 0

ORTHOGONALITY OF EIGENFUNCTIONS FOR A BOSE GAS IN THE CASE OF A CONSTANT FREQUENCY OF PARTICLE COLLISIONS 粒子碰撞频率恒定情况下玻色气体本征函数的正交性

Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-2-61-73

E. A. Bedrikova, Ludmila S. Seregina

{"title":"ORTHOGONALITY OF EIGENFUNCTIONS FOR A BOSE GAS IN THE CASE OF A CONSTANT FREQUENCY OF PARTICLE COLLISIONS","authors":"E. A. Bedrikova, Ludmila S. Seregina","doi":"10.18384/2310-7251-2019-2-61-73","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-2-61-73","url":null,"abstract":"Бедрикова Е. А., Серегина Л. С. Московский государственный областной университет 141014, г. Московская область, г. Мытищи, ул. Веры Волошиной, д. 24 Российская Федерация Аннотация. В настоящей работе проводится исследование собственных функций характеристического уравнения, отвечающего кинетическому уравнению для бозе-газ с постоянной частотой столкновения частиц. Используется решение однородной краевой задачи Римана. Обобщается теория ортогональности собственных функций на квантовые газы, а именно на бозе-газ. Свойства ортогональности, положенные в основу кинетической теории, позволяют находить аналитическое решение задач с граничными условиями. Ключевые слова: бозе-газ, равновесная функция распределения Бозе-Эйнштейна, дисперсионная функция, собственные функции, ортогональность собственных функций.","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":"67947749","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

CONTROL OF PHYSICAL AND MECHANICAL PROPERTIES OF THE TITANIUM ALLOY SURFACE BY SHORT LASER PULSES 短激光脉冲对钛合金表面物理力学性能的控制

Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-4-30-42

I. Ushakov, Y. Simonov

{"title":"CONTROL OF PHYSICAL AND MECHANICAL PROPERTIES OF THE TITANIUM ALLOY SURFACE BY SHORT LASER PULSES","authors":"I. Ushakov, Y. Simonov","doi":"10.18384/2310-7251-2019-4-30-42","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-4-30-42","url":null,"abstract":"The physical and mechanical properties of the surface layer of titanium alloys VT18u and VT9 processed by laser pulses are investigated. Laser processing consists of a series of pulses with a duration of ≈20 ns. Various laser processing methods are used, which differ in power density, pulse repetition rate, algorithm for forming a matrix of irradiated sections, etc. The changes in microhardness are examined. The dependences of microhardness on the load at the indenter are established. It is shown that the quality of the formed surface and its properties are determined by the parameters of laser pulses and the processing technology as © CC BY Ушаков И. В., Симонов Ю. В., 2019. ISSN 2072-8387 Вестник Московского государственного областного университета. Серия: Физика-Математика 2019 / No 4 31 a whole. Regimes are established that provide an increase in the microhardness of the material, as well as the resistance of the treated surface to cracking and fracture under local loading. The mechanisms of complex improvement of the mechanical properties of the surface layer of a material under the influence of laser treatment are also discussed. A significant advantage of the proposed treatment method is the simultaneous increase in microhardness and resistance","PeriodicalId":33476,"journal":{"name":"Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67949187","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: 2

DERIVATION OF VLASOV-MAXWELL-EINSTEIN EQUATION AND ITS CONNECTION WITH COSMOLOGICAL LAMBDA-TERM 弗拉索夫-麦克斯韦-爱因斯坦方程的推导及其与宇宙学λ项的联系

Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-2-24-48

V. Vedenyapin, N. N. Fimin, V. Chechetkin

引用次数: 1

STIMULATED EMISSION AND ABSORPTION OF LIGHT BY AN ELECTRON ON A CYLINDRICAL SURFACE 受激发射:由圆柱形表面上的电子受激发射和吸收光

Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2018-3-82-89

P. Éminov

引用次数: 0

J. W. STRUTT (LORD RAYLEIGH) AND HISTORY OF THE DISCOVERY OF THE RAYLEIGH-JEANS LAW OF THERMAL RADIATION j·w·斯特拉特(瑞利勋爵)和发现瑞利-牛仔裤热辐射定律的历史

Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-2-96-105

V. Isaev

引用次数: 0

LINEARIZATION OF THE KINETIC EQUATION FOR ELECTRONSIN A DEGENERATE PLASMA 简并等离子体中电子动力学方程的线性化

Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-4-22-29

A. Yushkanov, T. N. Lam

引用次数: 0

REGULARIZATION OF THE SOLUTION TO THE HAMMERSTEIN OPERATOR EQUATION OF THE FIRST KIND WITH AN APPROXIMATELY SPECIFIED OPERATOR 第一类hammerstein算子方程解的正则化与近似指定算子

Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-1-6-15

I. Usenov, Mirlan K. Kenzhebaev

{"title":"REGULARIZATION OF THE SOLUTION TO THE HAMMERSTEIN OPERATOR EQUATION OF THE FIRST KIND WITH AN APPROXIMATELY SPECIFIED OPERATOR","authors":"I. Usenov, Mirlan K. Kenzhebaev","doi":"10.18384/2310-7251-2019-1-6-15","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-1-6-15","url":null,"abstract":"Усенов И. А., Кенжебаев М. К. 1 Кыргызский Национальный Университет имени Ж. Баласагына 720033, г. Бишкек, ул. Фрунзе, д. 547, Кыргызстан 2 Кыргызский Экономический Университет имени М. Рыскулбекова 720033, г. Бишкек, ул. Т. Молдо, д. 58, Кыргызстан Аннотация. В Гильбертовом пространстве исследован класс нелинейных операторных уравнений первого рода. Построено приближенное решение, устойчивое относительно исходных данных задачи. Доказана сходимость приближенного решения к точному решению исходного уравнения. Произведён выбор параметра регуляризации от погрешностей. Ключевые слова: уравнение Гаммерштейна, регуляризация, сходимость, уравнение первого рода.","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":"67945954","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

ANISOTROPY OF DIELECTRIC PERMITTIVITY IN 1-(4-HEXYLCYCLOHEXYL)-4-ISOTHIOCYANATOBENZENE 1-(4-己基环己基)-4-异硫氰酸苯介电常数的各向异性

Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-1-83-96

A. Kurilov, N. I. Volosnikova

引用次数: 1

ALGORITHM OF PROTECTION AGAINST VIOLATIONS OF THE RULES OF INFORMATION INPUT AND CORRECTION OF THE FINAL RESULT 算法防止违反规则的信息输入和纠正最终结果

Vestnik moskovskogo gosudarstvennogo oblastnogo universiteta Seriia Fizikamatematika Pub Date : 2019-01-01 DOI: 10.18384/2310-7251-2019-2-106-121

A. V. Shabanova, E. Kalashnikov

{"title":"ALGORITHM OF PROTECTION AGAINST VIOLATIONS OF THE RULES OF INFORMATION INPUT AND CORRECTION OF THE FINAL RESULT","authors":"A. V. Shabanova, E. Kalashnikov","doi":"10.18384/2310-7251-2019-2-106-121","DOIUrl":"https://doi.org/10.18384/2310-7251-2019-2-106-121","url":null,"abstract":". Entering of incorrect information in the user–machine dialog may be intentional or unintentional. In any case, it is necessary to ‘train’ the system, which serves the machine, to understand and to recognize errors with the information input and to correct them. Thus, the aim of the work is to develop an algorithm for protection against violations of information input and correction of the final result. For this purpose, existing and traditional algorithms are studied. Their advantages and disadvantages in relation to the task are revealed. In particular, a similar situation with the detection of the input error, its recognition and correction is often observed in the most primitive situations – in calculators translating one number system (NS) to another. This primitiveness, first of all, indicates the fundamental nature of the problem to be solved. Therefore, in the presented work we use the already existing algorithms to discuss and develop the ways to correct the major errors that are found in Online Calculators translating one number system (NS) to another.","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":"67947759","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