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Доклады Российской академии наук. Физика, технические науки最新文献

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Spectral and luminescent characteristics of organic scintillators UPS-923A irradiated with ionizing radiation 用电离辐射辐照有机闪烁体 UPS-923A 的光谱和发光特性
Доклады Российской академии наук. Физика, технические науки Pub Date : 2024-08-10 DOI: 10.31857/s2686740024010023
Sh. Irisov, I. Nuritdinov, K. K. Saidahmedov, Z. U. Esanov, B. Yuldashev
{"title":"Spectral and luminescent characteristics of organic scintillators UPS-923A irradiated with ionizing radiation","authors":"Sh. Irisov, I. Nuritdinov, K. K. Saidahmedov, Z. U. Esanov, B. Yuldashev","doi":"10.31857/s2686740024010023","DOIUrl":"https://doi.org/10.31857/s2686740024010023","url":null,"abstract":"The effect of gamma and electron irradiation on optical and IR absorption, as well as on photoluminescence of samples with a PS polystyrene base and pTP and POPOP additives, has been studied. A decrease in the luminescence intensity of irradiated samples in the ranges of 300–380 nm and 380–500 nm was found, which correlates with changes in the IR absorption spectra of the samples, which is due to the degradation of the structure of the aromatic benzene ring in the matrix of the polymer base and the destruction of additives.","PeriodicalId":209009,"journal":{"name":"Доклады Российской академии наук. Физика, технические науки","volume":"6 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141921141","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 dynamic model and a new approach to analyzing the success of the soft landing process of a spacecraft with a mechanical landing device 分析带有机械着陆装置的航天器软着陆过程成功与否的动态模型和新方法
Доклады Российской академии наук. Физика, технические науки Pub Date : 2024-08-10 DOI: 10.31857/s2686740024010083
V. N. Bakulin, S. Borzykh
{"title":"A dynamic model and a new approach to analyzing the success of the soft landing process of a spacecraft with a mechanical landing device","authors":"V. N. Bakulin, S. Borzykh","doi":"10.31857/s2686740024010083","DOIUrl":"https://doi.org/10.31857/s2686740024010083","url":null,"abstract":"An approach is proposed to analyze one of the most critical stages of spacecraft operation – the soft landing process, starting from the moment of the first contact of the spacecraft with the ground to its complete stop. It is noted that it is necessary to extinguish the significant kinetic energy that the device possesses at the moment of contact with the surface. The most common type of landing device is considered spring-lever type, including several supports with deformable energy absorbers. Limited opportunities for ground-based experimental testing of the soft landing process lead to the need to use a dynamic model to analyze the success of landing and rational selection of the characteristics of the landing device. The model of the landing process is based on the representation of the vehicle body and its landing device elements as a structurally complex mechanical system of bodies with internal connections, the type of which is determined by restrictions imposed on the relative movement of the system bodies. An approach to the for-mulation of special equations for determining bond reactions that reflects these limitations is presented. The success criteria of the landing process are described. The success analysis of the planting process is illustrated by a specific example.","PeriodicalId":209009,"journal":{"name":"Доклады Российской академии наук. Физика, технические науки","volume":"9 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141920528","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
Development of a new more precise algorithm for computing tidal Love numbers 开发计算潮汐爱数的更精确新算法
Доклады Российской академии наук. Физика, технические науки Pub Date : 2024-08-10 DOI: 10.31857/s2686740024010117
D. O. Amorim, T. Gudkova
{"title":"Development of a new more precise algorithm for computing tidal Love numbers","authors":"D. O. Amorim, T. Gudkova","doi":"10.31857/s2686740024010117","DOIUrl":"https://doi.org/10.31857/s2686740024010117","url":null,"abstract":"Tidal Love numbers are often used for studying the interior structure of planets and satellites of the Solar System. Measuring the deformation in response to tidal loading belongs to the methods for probing the interiors. The algorithm for computing tidal deformation depends on a series of assumptions and approximations and, therefore, can differ according to different authors. In this paper we compare the existing methods and, based on them, we propose a new and more precise algorithm for computing the tidal Love numbers of the Earth and other bodies with a similar interior structure.","PeriodicalId":209009,"journal":{"name":"Доклады Российской академии наук. Физика, технические науки","volume":"5 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141920792","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
On giant amplification of effects of phonon nonspecular reflection at a solitary interface between magnetic and non-magnetic media 论磁性介质与非磁性介质孤界面声子非镜反射效应的巨幅放大
Доклады Российской академии наук. Физика, технические науки Pub Date : 2024-08-10 DOI: 10.31857/s2686740024010138
Yu. V. Gulyaev, O. S. Sukhorukova, A. Tarasenko, S. V. Tarasenko, V. Shavrov
{"title":"On giant amplification of effects of phonon nonspecular reflection at a solitary interface between magnetic and non-magnetic media","authors":"Yu. V. Gulyaev, O. S. Sukhorukova, A. Tarasenko, S. V. Tarasenko, V. Shavrov","doi":"10.31857/s2686740024010138","DOIUrl":"https://doi.org/10.31857/s2686740024010138","url":null,"abstract":"On the secluded interface of semi-infinite magnetic and non-magnetic media, hybridiza-tion of magnetoelastic interaction with inhomogeneous exchange or magneto-dipole interaction can lead to the formation of symmetry-protected bound states in the radiation spectrum of the leaky surface magnon polarons. If a quasi-plane bulk elastic wave falls on the surface of a magnetic medium from outside, and the wave parameters approach to the parameters of the surface “dark” state of the above mentioned type, the nonspecular reflection effects of the first order increase unrestrictedly (in the non-dissipative approximation).","PeriodicalId":209009,"journal":{"name":"Доклады Российской академии наук. Физика, технические науки","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141919691","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 Okhotsimsky–Egorov’s method for solving the Euler–Lambert’s problem 使用奥霍齐姆斯基-叶戈罗夫方法求解欧拉-兰伯特问题
Доклады Российской академии наук. Физика, технические науки Pub Date : 2024-08-10 DOI: 10.31857/s2686740024010093
V. V. Ivashkin
{"title":"Using Okhotsimsky–Egorov’s method for solving the Euler–Lambert’s problem","authors":"V. V. Ivashkin","doi":"10.31857/s2686740024010093","DOIUrl":"https://doi.org/10.31857/s2686740024010093","url":null,"abstract":"The solution of the Euler–Lambert’s problem, which consists in constructing an orbit passing through two given points of the central Newtonian gravitational field for a given central transfer angle and a given transfer time, is considered. A method for solving this problem has been investigated, which consists, as suggested by V.A. Egorov, in selecting the angle of inclination of the initial velocity vector of a material point to the transversal, so that the flight time between given points in space is equal to the given one. In this case, setting the specified angle of inclination of the initial velocity to the transversal allows, using the Okhotsimsky formula, to analytically determine the value of this velocity and then determine the entire orbit. It is concluded that this method, which was proposed to be given the name Okhotsimsky–Egorov, can be used as the basis for solving the Euler–Lambert’s problem.","PeriodicalId":209009,"journal":{"name":"Доклады Российской академии наук. Физика, технические науки","volume":"11 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141920560","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
ЛИНИИ РАВНЫХ ФАЗ ЗВУКОВОГО ДАВЛЕНИЯ В ПРОСТРАНСТВЕННО-ЧАСТОТНОЙ ОБЛАСТИ ГИДРОАКУСТИЧЕСКОГО ПОЛЯ 水声场空间频率区声压均匀相压力线
Доклады Российской академии наук. Физика, технические науки Pub Date : 1900-01-01 DOI: 10.31857/s2686740021030111
Г. Н. Кузнецов, А. Н. Степанов
{"title":"ЛИНИИ РАВНЫХ ФАЗ ЗВУКОВОГО ДАВЛЕНИЯ В ПРОСТРАНСТВЕННО-ЧАСТОТНОЙ ОБЛАСТИ ГИДРОАКУСТИЧЕСКОГО ПОЛЯ","authors":"Г. Н. Кузнецов, А. Н. Степанов","doi":"10.31857/s2686740021030111","DOIUrl":"https://doi.org/10.31857/s2686740021030111","url":null,"abstract":"","PeriodicalId":209009,"journal":{"name":"Доклады Российской академии наук. Физика, технические науки","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123436359","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
ТОНКОЕ ПОЛУПРОВОДНИКОВОЕ КВАНТОВОЕ КОЛЬЦО – АНАЛОГ АТОМА БОРА, УПРАВЛЯЕМОГО МАГНИТНЫМ ПОЛЕМ 薄半导体量子环类似于玻尔原子，由磁场控制。
Доклады Российской академии наук. Физика, технические науки Pub Date : 1900-01-01 DOI: 10.31857/s2686740021050047
А. М. Мандель, В. Б. Ошурко, С. М. Першин
{"title":"ТОНКОЕ ПОЛУПРОВОДНИКОВОЕ КВАНТОВОЕ КОЛЬЦО – АНАЛОГ АТОМА БОРА, УПРАВЛЯЕМОГО МАГНИТНЫМ ПОЛЕМ","authors":"А. М. Мандель, В. Б. Ошурко, С. М. Першин","doi":"10.31857/s2686740021050047","DOIUrl":"https://doi.org/10.31857/s2686740021050047","url":null,"abstract":"","PeriodicalId":209009,"journal":{"name":"Доклады Российской академии наук. Физика, технические науки","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117022475","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
ПРИМЕНЕНИЕ МЕТОДА НЕОПРЕДЕЛЕННЫХ ЧАСТОТ ДЛЯ АНАЛИЗА ДВУХПЛАНЕТНОЙ ЗАДАЧИ 不确定频率分析双星任务的应用
Доклады Российской академии наук. Физика, технические науки Pub Date : 1900-01-01 DOI: 10.31857/s2686740021060043
В.М. Буданов
{"title":"ПРИМЕНЕНИЕ МЕТОДА НЕОПРЕДЕЛЕННЫХ ЧАСТОТ ДЛЯ АНАЛИЗА ДВУХПЛАНЕТНОЙ ЗАДАЧИ","authors":"В.М. Буданов","doi":"10.31857/s2686740021060043","DOIUrl":"https://doi.org/10.31857/s2686740021060043","url":null,"abstract":"","PeriodicalId":209009,"journal":{"name":"Доклады Российской академии наук. Физика, технические науки","volume":"163 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125977576","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
АСИМПТОТИЧЕСКИЙ АНАЛИЗ ДВУХРЯДНОГО КЛЕПАНИЯ ПЛАСТИН КИРХГОФА 基尔霍夫双列铆钉渐近线分析
Доклады Российской академии наук. Физика, технические науки Pub Date : 1900-01-01 DOI: 10.31857/s2686740020060140
Сергей Александрович Назаров
{"title":"АСИМПТОТИЧЕСКИЙ АНАЛИЗ ДВУХРЯДНОГО КЛЕПАНИЯ ПЛАСТИН КИРХГОФА","authors":"Сергей Александрович Назаров","doi":"10.31857/s2686740020060140","DOIUrl":"https://doi.org/10.31857/s2686740020060140","url":null,"abstract":"","PeriodicalId":209009,"journal":{"name":"Доклады Российской академии наук. Физика, технические науки","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132244724","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
ИССЛЕДОВАНИЕ КОМПОЗИТА: МЕТАЛЛИЧЕСКИЕ НАНОЧАСТИЦЫ В ДИЭЛЕКТРИЧЕСКОЙ МАТРИЦЕ И МНОГОСЛОЙНЫХ ПОЛОСНО-ПРОПУСКАЮЩИХ ФИЛЬТРОВ НА ЕГО ОСНОВЕ 作曲家的研究:介质矩阵中的金属纳米颗粒和基于它的多层带宽过滤器
Доклады Российской академии наук. Физика, технические науки Pub Date : 1900-01-01 DOI: 10.31857/s2686740021020024
Борис Афанасьевич Беляев, Ан. А. Лексиков, В. В. Тюрнев, Д. А. Шабанов
{"title":"ИССЛЕДОВАНИЕ КОМПОЗИТА: МЕТАЛЛИЧЕСКИЕ НАНОЧАСТИЦЫ В ДИЭЛЕКТРИЧЕСКОЙ МАТРИЦЕ И МНОГОСЛОЙНЫХ ПОЛОСНО-ПРОПУСКАЮЩИХ ФИЛЬТРОВ НА ЕГО ОСНОВЕ","authors":"Борис Афанасьевич Беляев, Ан. А. Лексиков, В. В. Тюрнев, Д. А. Шабанов","doi":"10.31857/s2686740021020024","DOIUrl":"https://doi.org/10.31857/s2686740021020024","url":null,"abstract":"","PeriodicalId":209009,"journal":{"name":"Доклады Российской академии наук. Физика, технические науки","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130011996","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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