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Models Analyses for Traveling Wave Tubes Failure Rate Estimating in the Design
P. 1–4.
The work is devoted to the mathematical models study for operational failure rate estimating of traveling wave tubes. The detailed analysis of the parameters taken into account in the considered models is carried out. The key factors that have the greatest impact on the reliability characteristics are highlighted. Based on the results of numerical evaluation of the traveling wave tubes operational failure rate according to the considered mathematical models, a significant difference in the obtained results is shown. Mathematical models of operational failure rate, taking into account the key factors (temperature and manufacturing technology) based on the analysis of the causes of failure of traveling wave tubes are recommended to use. However, the considered mathematical models, in aggregate, do not take into account the key factors. This leads to an unreliable assessment of the reliability characteristics at the design stages
Leonid Grinin, Alexander M., Korotayev A., , in: Complexity in Universal Evolution. A Big History Perspective.: Springer, 2026. Ch. 12 P. 283–355.
In the first half of this chapter, Grinin et al. survey general similarities and differences between biological and social macroevolution. They undertake a systematic comparison between biological and social evolution at different levels of analysis and in various aspects, formulating a considerable number of general principles and rules of evolution, and working to develop a ...
Added: August 10, 2026
Kazantseva A. V., A.V. Toropova, Khusnutdinova E. K. et al., ВАВИЛОВСКИЙ ЖУРНАЛ ГЕНЕТИКИ И СЕЛЕКЦИИ, Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук» (ИЦиГ СО РАН) (Новосибирск) 2025 Vol. 30 No. 3 P. 470–481
The development of musical abilities, including absolute pitch, musical memory, rhythm sense, and musicality, at a high degree is determined by a hereditary component (up to 68 %). The studies implementing a genome-wide linkage and association approach to musical aptitude have revealed more than 100 genetic loci. This spectrum is comprised of the genes encoding ...
Added: May 29, 2026
Switzerland: Springer Publishing Company, 2026.
In this volume of “Lecture Notes in Networks and Systems” we are pleased to present the proceedings of the 25th International Multidisciplinary Conference on Reliability and Statistics in Transportation and Communication” (RelStat-2025), which took place in hybrid form in Riga, Latvia on October 16–18, 2025. This event belongs to a con ference series started in ...
Added: May 25, 2026
Nartova-Bochaver S. K., Stakina Y., Тренина М. Е. et al., Клиническая и специальная психология 2026 Т. 15 № 1 С. 166–181
Context and relevance. Eco-anxiety is the anxiety arising in connection with real and possible natural changes and disasters. Eco-anxiety is a significant destabilizer of human activity and therefore needs to be monitored or intervened, which requires a tool to assess its severity. Objective. The present study is aimed at adapting the Hogg Eco-Anxiety Scale (HEAS) ...
Added: April 18, 2026
Miske O., Abatayo A. L., Daley M. et al., Nature 2026 Vol. 652 P. 126–134
Published claims should be reproducible, yielding the same result when applying the same analysis to the same data. ...
Added: January 19, 2026
Akhmedjanova D., Окунола А. О., Психологическая наука и образование 2025 Т. 30 № 5 С. 91–104
Context and relevance. Metacognition is the control over one’s thoughts. There is a lack of a reliable survey measuring metacognition of schoolchildren in Russia. Objective. The goal of this article is to report on the adaption of the metacognition survey on a sample of Russian adolescents. Hypothesis. The adaptation of the metacognition scale from the ...
Added: November 7, 2025
Leonid Grinin, Markov A., Korotayev A., Journal of Big History 2025 Vol. 8 No. 3 P. 1–51
In this paper, Grinin et al. survey general similarities and differences between biological and social macroevolution and phases of Big History. The comparison of biological and social evolution is an important but (regrettably) understudied subject. The authors have endeavored to make a systematic comparison between biological and social evolution at different levels of analysis and ...
Added: November 1, 2025
Reznichenko S. I., Рожкова Н. А., Человек 2025 Т. 36 № 4 С. 58–73
Identification with the city not only supports the psychological wellbeing of the resident, but also becomes a resource for the development of the city, because committed citizens are more motivated to preserve and protect their city. Meanwhile, there are few ways to measure this phenomenon, and the available ones have limitations or have not been ...
Added: September 1, 2025
Korolev P., Polesskiy S., Tsvetkov V. et al., Стандарты и качество 2025 № 6(1056) С. 90–97
The work addresses the issue of not meeting the target dependability measures of electronic modules during their development by domestic enterprises. It is shown that Russia lacks tools such as methods, techniques,
and software for implementing the current principles of quality management. A methodology for conducting effective audits and assessing the quality of the technological process ...
Added: June 13, 2025
Korolev P., Polesskiy S., Tsvetkov V. et al., Известия высших учебных заведений. Приборостроение 2025 Т. 68 № 4 С. 355–365
A method of optical alignment of photomask and blank for installing direct exposure of PCB on a liquid crystal
matrix to form a desired topology on the photosensitive material is presented. In particular, the processes of calibrating
the video camera position relative to the working field of the installation and positioning the image with the transferred
topology relative ...
Added: June 13, 2025
Akhremenko A. S., Philippov I., Sychev V. et al., Политическая наука 2025 № 1 С. 77–102
Modern academic literature has focused on technology adaptation and innovation in politics and public administration. At present, there is a large number of studies, the central object of which is such an actively developing phenomenon as public digital services. Despite the diverse range of theoretical approaches, there is no established methodological tradition of modelling the ...
Added: May 1, 2025
Efremov Y., Ermolaeva A., Vladimirov G. et al., Plos One 2022 Vol. 17 No. 6
Cardiovascular diseases associated with high cholesterol (hypercholesterolemia) and low-density lipoproteins (LDL) levels are significant contributors to total mortality in developing and developed countries. Mathematical modeling of LDL metabolism is an important step in the development of drugs for hypercholesterolemia. The aim of this work was to develop and to analyze an integrated mathematical model of ...
Added: April 9, 2025
Лесин А. В., Исаев А. В., Тонконогов Б. П. et al., Тонкие химические технологии 2023 Т. 19 № 6 С. 485–496
Objectives. A quick cold start of emergency and auxiliary power units based on diesel engines should be possible at any time without
problems and in the shortest possible time. The condition of the engine oil is one of the most important factors influencing the smooth
start-up of power plants. During diesel engine operation, engine oil accumulates soot ...
Added: February 26, 2025
Ishbulatov Y., Kurbako A., Vahlaeva A. et al., European Physical Journal: Special Topics 2024 Vol. 233 P. 569–577
We propose a mathematical model of the human cardiovascular and respiratory systems. The cardiovascular segment of the model simulates the main heart rate, oscillating blood pressure, peripheral vascular resistance, and nonlinear dynamics of the autonomic control of circulation, namely α- and βsympathetic and parasympathetic control. The respiratory part includes central pattern generator, lungs, and a ...
Added: December 24, 2024
Polesskiy S., Бушуев Н. И., Мкртчян Г. А. et al., В кн.: Технологии информационного общества. Сборник трудов XVIII Международной отраслевой научно-технической конференции «Технологии информационного общества». (27-28 февраля 2024 г. Москва, МТУСИ).: М.: МТУСИ, 2024. С. 67–69.
This paper describes a method for assessing the effectiveness of the quality management system (QMS) of an executive enterprise producing radio engineering equipment. Modern approaches to quality management are outlined. The design of a questionnaire for expert assessment is presented, and a characteristic of the developed system for auditing is given. ...
Added: November 11, 2024
Бушуев Н. И., Козлова А. А., Мкртчян Г. А. et al., В кн.: Сборник трудов всероссийской научно-технической конференции «Информационные технологии в науке, промышленности и образовании» (ИТНПО-2024) (Ижевск, 23–24 мая 2024 г.).: Издательство УИР ИжГТУ имени М. Т. Калашникова, 2024. С. 291–298.
The article examines existing methods for assessing reliability prediction models based on standards presented in Standards from different countries. The analysis of the disadvantages of approaches to calculating the production quality coefficient based on traditional and modernized models is carried out. And further, an improved approach to creating a production quality assessment system is described, ...
Added: November 1, 2024
Panchenko S. V., Dli M. I., Chernovalova M. V. et al., CIS Iron and Steel Review 2022 Vol. 23 P. 119–124
Mathematical model for theoretical analysis of thermophysical processes of melt drops solidification is examined during their motion inside cooling gas, applying to granulation task. The heat exchange equations during granulation, taking into account convection, heat conductivity in solid phase and Stefan conditions on the boundary of phase transition, are presented. The relationships characterizing correlation of ...
Added: September 26, 2024
Akhmedjanova D., Lizunova E., Psychology. Journal of the Higher School of Economics 2024 Vol. 21 No. 2 P. 387–407
Self-regulated learning (SRL) refers to the processes of setting goals, monitoring progress, selecting learning strategies, and revising learning goals. Research evidence shows positive associations between SRL and academic achievement, motivation, well-being, and other constructs. The purpose of this paper is to establish the initial evidence of the construct validity of the SRL Strategies survey for ...
Added: June 27, 2024
Куляпина А. М., Fam A. K., Zolotareva A., Вопросы образования 2024 № 1 С. 127–141
In recent years, the sense of agency has been the subject of interest for researchers in psychology, economics, sociology, political science, and education. To psychologically measure this phenomenon, Adam Tapal and his colleagues developed and validated the Sense of Agency Scale (SoAS). The aim of this study was to adapt the Russian version of the ...
Added: April 24, 2024
Akhmedjanova, D.R., Psychology in Russia: State of the Art 2024 Vol. 17 No. 1 P. 45–66
Background. Self-efficacy refers to students’ perceived confidence in their ability to tackle learning tasks. Research shows that self-efficacy serves as an important predictor of academic achievement and relates to students’ academic success, self-regulated learning, and motivation. It is therefore important to understand how self-efficacy develops and manifests itself in Russian schoolchildren and relates to their ...
Added: April 22, 2024