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Mathematic modelling of electronically controlled filters of microwave, SubTHz and THz–bands on the base of graphene–and–dielectric multilayer structure
IEEE, 2019.
Смирнов И. А., Черкесова Л. В., Поркшеян В. М., Акишин Б. А., Синявский Г. П., Безуглов Д. А.
In the offered examination the mathematical modelling of interaction processes of electromagnetic waves with composite substances nanostructures and electrodynamic structures on the base of graphene and carbon nanotubes is made. Models are grounded on solution of diffraction boundary-value 3D problems for Maxwell's equations with electrodynamic boundary conditions. Principles of subTHz and THz frequency bands controlled arrangements construction - filters, modulators, polarizers, etc., on the base of nanostructures by type "graphene - dielectric", lattices by type "carbon nanotube-graphene", graphene meta-surfaces, etc., and also nonlinear parametric zonal transducers - amplifiers and generators on the base of graphene nanostructures are researched. Creation of radioelectronic instrumentation and equipment of new generation, capable to work in subTHz and THz frequency bands, will cause the rapid development of informational telecommunications of XXI-st century.
Власенко А. О., Sukharev A., Урюпин И. В., Управление большими системами: сборник трудов 2023 № 104 С. 73–99
The aim of this article is to define and to describe the calculation methodology for both on-point and general quantitative indicators of air transportation system quality for a passenger. The indicators can be based on any of the three common measures of path-passing (time, cost, and distance). The pair of values that is proposed to ...
Added: January 12, 2024
Shurakov A., Belikov I., Anatoliy Prikhodko et al., СВЧ-техника и телекоммуникационные технологии, Россия 2021 No. 3 P. 34–34
We report on the technology of membrane-integrated planar Schottky diodes intended for use as part of waveguide mm-Wave detectors. The diode fabrication process mainly relies on selective etching of GaAs enabling the implementation of both a metallic suspended bridge terminated by a microscale Schottky contact to n-GaAs and a 140-200 μm thick SI-GaAs membrane underneath. ...
Added: September 4, 2023
Cham: Springer, 2021.
Introduces new results in methods, problems and applications of operator theory and harmonic analysis by leading researchers
Presents the fundamentals of theory followed by recent developments in PDE’s, mathematical modelling, bioinformatics, and a discussion of real-world problems
Focuses on the very new trends in operator theory and function spaces theory, such as variable exponent spaces and objects ...
Added: December 25, 2022
Springer, 2022.
Presents the latest research in the field of reliability engineering applications. Signposts areas for useful future research. A Useful reference to engineers, researchers and advanced students in reliability engineering ...
Added: December 16, 2022
Blinova O. V., Tarasov N., Blekanov I. et al., , in: Компьютерная лингвистика и интеллектуальные технологии: По материалам ежегодной международной конференции «Диалог» (Москва, 17 июня — 20 июня 2020 г.)Вып. 19(26).: М.: Изд-во РГГУ, 2020. P. 76–92.
The paper is devoted to the problem of modeling general-language frequency using data of large Russian corpora. Our goal is to develop a methodology for forming a consolidated frequency list which in the future can be used for assessing lexical complexity of Russian texts.
We compared 4 frequency lists developed from 4 corpora (Russian National Corpus, ...
Added: December 12, 2022
Морозов Н. Ю., Гришин Е. М., Правдивец Н. А. et al., Управление большими системами: сборник трудов 2022 № 99 С. 135–156
В связи с ростом объема мультимодальных перевозок ОАО «РЖД» требуется более эффективное использование имеющихся ресурсов. В наши дни наиболее востребованной разновидностью международного грузооборота является доставка морским транспортом с последующей перегрузкой на железную дорогу для доставки до пункта назначения на материке. В настоящей статье предлагается комплексная математическая модель, включающая две подзадачи: задачу назначения причалов (BAP) и ...
Added: December 7, 2022
Tikhonov N. A., Tokmachev M., Bakhia T. et al., Journal of Mathematical Chemistry 2021 Vol. 59 No. 4 P. 1054–1067
An electrochemical cell was created and experimentally tested and the process of intense capacitive deionization (CDI) of aqueous solutions in a cyclic mode was studied. The paper presents a developed mathematical model for CDI process on electrodes with complex structure of pore space. This allows to describe the process and obtain results that are in ...
Added: November 17, 2022
Sergey Smetanin, Mathematics 2022 Vol. 10 No. 16 Article 2947
Policymakers and researchers worldwide are interested in measuring the subjective well-being (SWB) of populations. In recent years, new approaches to measuring SWB have begun to appear, using digital traces as the main source of information, and show potential to overcome the shortcomings of traditional survey-based methods. In this paper, we propose the formal model for ...
Added: August 15, 2022
Shurakov A., Prikhodko A., Mikhailov D. et al., Journal of Physics: Conference Series 2020 Vol. 1695 No. 1 Article 012156
In this paper we report on the results of investigation of efficiency of a microwave reflectometry for readout of a terahertz multipixel Schottky diode direct detector. Decent capabilities of the microwave reflectometry readout were earlier justified by us for a hot electron bolometric direct detector. In case of a planar Schottky diode, we observed increase ...
Added: May 17, 2022
Nadon J., Epshtein V., Cameron E. et al., Communications Biology 2022 Vol. 5 No. 1 Article 457
Transcriptional pausing is crucial for the timely expression of genetic information. Biochemical methods quantify the half-life of paused RNA polymerase (RNAP) by monitoring restarting complexes across time. However, this approach may produce apparent half-lives that are longer than true pause escape rates in biological contexts where multiple consecutive pause sites are present. We show here ...
Added: May 13, 2022
Golubenko D. V., Yaroslavtsev A. B., Journal of Membrane Science 2021 Vol. 635 Article 119466
The dependence of monovalent-ion selectivity of surface-sulfonated anion exchange membranes (s-AEMs) on the electrodialysis (ED) desalination current density, the concentration of equimolar ternary electrolyte (XCl + X2SO4) in the total concentration range 0.04–0.2 M, and the type of cations (X = H, Cs, Na) has been studied. The membrane current-voltage characteristics and values of the diffusion permeability coefficients in electrolyte solutions and their mixtures ...
Added: September 23, 2021
Trukhin V. N., Eliseev A., Optics and Spectroscopy 2015 Vol. 119 No. 5 P. 754–758
Experimental results on THz radiation emission by periodic arrays of semiconductor GaAs-based nanowires upon excitation by ultrashort optical pulses are presented. The efficiency of THz radiation emission is found to increase due to the resonant excitation of cylindrical modes in a nanocrystal. The maximum value of THz field can be achieved at distances between nanowires ...
Added: April 16, 2021
Tyuryumina E., Neznanov A., Turumin J. L., , in: The Breast. PRIMARY THERAPY OF EARLY BREAST CANCER Evidence, Controversies, Consensus. 17th St.Gallen International Breast Cancer Conference, Online Worldwide, 17 - 21 March 2021Vol. 56. Issue Supplement 1.: Switzerland: Elsevier, 2021. Ch. S60 P. 60–61.
P108 - Predictive mathematical modelling of recurrence periods for the secondary distant metastases in patients with ER/PR/HER2/Ki-67 subtypes of breast cancer ...
Added: March 21, 2021
Bratus A., Drozhzhin S., Yakushkina T., , in: Trends in Biomathematics: Modeling Cells, Flows, Epidemics, and the Environment. Selected Works from the BIOMAT Consortium Lectures, Szeged, Hungary, 2019.: Springer, 2020. P. 1–7.
In this paper, we examine the process of fitness landscape evolution of permanent replicator systems. The central hypothesis of this study is that the specific time of the evolutionary adaptation of the system parameters is much slower than the time of internal evolutionary dynamics. This assumption leads to the fact that evolutionary changes of the ...
Added: March 11, 2021
Pospelov I. G., В кн.: III Моисеевские чтения: Культура и гуманитарные проблемы современной цивилизации: доклады и материалы Общероссийской (национальной) научной конференции. Москва, 11–12 марта 2020 г.: М.: Издательство Московского гуманитарного университета, 2020. Гл. 1 С. 3–10.
Текст опирается в основном на главу "Моделирование экономических структур" (Поспелов, 2003). Описанная в главе 11.2 книги система ЭКОМОД базируется в значительной степени на материале курса лекций "Системный анализ рыночной экономики", который я долгое время продолжаю читать в МФТИ (Системный анализ, 2018). В этой брошюре, в частности, более подробно и последовательно, чем в первой из названных ...
Added: December 8, 2020
Tyuryumina E., Neznanov A., Turumin J. L., Cancers 2020 Vol. 12 No. 9 P. 1–20
Previously, a consolidated mathematical model of primary tumor (PT) growth and secondary distant metastasis (sdMTS) growth in breast cancer (BC) (CoMPaS) was presented. The aim was to detect the diagnostic periods for visible sdMTS via CoMPaS in patients with different subtypes ER/PR/HER2/Ki-67 (Estrogen Receptor/Progesterone Receptor/Human Epidermal growth factor Receptor 2/Ki-67 marker) of breast cancer. CoMPaS ...
Added: August 19, 2020
Гордеев А. А., Самойлова И. А., Вестник Тверского государственного университета. Серия: Экономика и управление 2017 № 4 С. 190–199
ассматривается задача эффективного управления кадрами в сфере розничной торговли в условиях современной экономики. Целью исследования является построение математической модели для оценки эффективности нововведений в управлении персоналом в рамках ограниченного бюджета. Для определения количественных показателей были проведены практические исследования, а именно - анкетирование персонала нескольких крупных торговых компаний. Представлена методика количественной оценки инноваций, изучено их влияние ...
Added: November 29, 2019
Atlantis Press, 2019.
The Third Workshop on Computer Modelling in Decision Making (CMDM 2018) was held in Saratov State University (Saratov, Russia) within the VII International Youth Research and Practice Conference ‘Mathematical and Computer Modelling in Economics, Insurance and Risk Management’.
The workshop 's main topic is computer and mathematical modeling in decision making in finance, insurance, banking, economic forecasting, ...
Added: October 28, 2019