scholarly journals Monitoring of Physical Processes in Upper Atmosphere, Ionosphere and Magnetosphere in Ionosphere Space Missions

2021 ◽  
Vol 254 ◽  
pp. 02010
Author(s):  
Anatoly Petrukovich ◽  
Mikhail Моgilevskii ◽  
Igor Kozlov ◽  
Sergey Pulinetz ◽  
Yurii Dobrolenskii ◽  
...  
Keyword(s):  
Solar Activity ◽  
Upper Atmosphere ◽  
Physical Parameters ◽  
Successful Implementation ◽  
Main Task ◽  
Physical Processes ◽  
Near Earth Space ◽  
New Information ◽  
Geophysical Processes ◽  
Space Project

The Ionosphere missions are the part of Ionosond-2025 space project, which main scientific objectives are monitoring of physical processes in the Earth upper atmosphere, ionosphere and magnetosphere, as well as of solar activity. Within the framework of the Ionozond-2025 project, it is planned to launch four spacecraft Ionosphere and one satellite Zond. The Zond satellite is planned to be launched in 2025. The main task of Zond mission is patrol of solar activity. The launch of the first pair of spacecraft is planned in early 2022, the second pair - late 2022 or early 2023. In case of successful implementation of the program of experiments on the Ionosphere satellites, control of the physical parameters of electromagnetic fields and corpuscular radiation in the near-Earth space will be provided, new information will be obtained on the geophysical processes occurring in the magnetosphere, ionosphere and upper atmosphere in their connection with solar activity.

scholarly journals APPLICATION OF LINEAR ASYNCHRONOUS MOTORS FOR HIGH-SPEED GROUND TRANSPORT

2021 ◽  
Vol 2 (446) ◽  
pp. 31-36
Author(s):  
S. T. Akhatov ◽  
V. G. Solonenko ◽  
N. M. Makhmetova ◽  
S. A. Kosenko ◽  
N. V. Ivanovtseva ◽  
...  
Keyword(s):  
High Speed ◽  
Magnetic Suspension ◽  
Transport Systems ◽  
Physical Parameters ◽  
Finite Width ◽  
Main Task ◽  
Tractive Force ◽  
Physical Processes ◽  
Linear Motors ◽  
Asynchronous Motors

Magnetic suspension in high-speed ground transport systems is an alternative to the rail wheel. The successful solution to the development of high-speed ground transport is largely determined by the creation of operationally efficient linear motors, the main task of which is to convert electrical energy into mechanical energy and create tractive force to ensure the movement of the crew according to a given program in the range of operating speeds. The article investigates linear asynchronous motors with longitudinal closure of magnetic flux of single-ended design. As a result of investigation of physical processes in linear motors caused by edge problems it was found that the cause of the transverse edge effect is the finite width dimensions of the reactive bus, the change of which causes closure of eddy currents within the active area of inductor, leads to weakening of magnetic field in the central zone and to reduction of tractive force. The discrepancy between the calculated and experimental indicators of physical processes in linear asynchro- nous motors due to significant idealization of mathematical models led to the development of a three-dimensional theory, brought to the calculation programs. The developed calculation program of electromechanical characteristics of linear induction motors with inductor and reactive bus layout, as well as their geometrical and physical parameters allows to determine the necessary integral motor characteristics in the form of a levitation function.

scholarly journals Multiwavelength Modeling the SED of Strongly Interacting Binaries

2011 ◽  
Vol 7 (S282) ◽  
pp. 65-66
Author(s):  
Augustin Skopal
Keyword(s):  
Physical Parameters ◽  
X Rays ◽  
Physical Processes ◽  
Short Contribution ◽  
Composite Spectrum ◽  
X Ray ◽  
Strongly Interacting ◽  
Low Mass ◽  
X Ray Binaries

AbstractThe spectrum of strongly interacting binaries, as for example, high and low mass X-ray binaries, symbiotic (X-ray) binaries and/or classical and recurrent novae, consists of more components of radiation contributing from hard X-rays to radio wavelengths. To understand the basic physical processes responsible for the observed spectrum we have to disentangle the composite spectrum into its individual components, i.e. to determine their physical parameters. In this short contribution I demonstrate the method of modeling the multiwavelength SED on the example of the extragalactic super-soft X-ray source RX J0059.1-7505 (LIN 358).

scholarly journals The Solar Twin Planet Search

2018 ◽  
Vol 619 ◽  
pp. A73 ◽  
Author(s):  
Diego Lorenzo-Oliveira ◽  
Fabrício C. Freitas ◽  
Jorge Meléndez ◽  
Megan Bedell ◽  
Iván Ramírez ◽  
...  
Keyword(s):  
Solar Activity ◽  
Activity Index ◽  
Open Clusters ◽  
Activity Level ◽  
Age Dating ◽  
Physical Parameters ◽  
Activity Levels ◽  
Sharp Drop ◽  
Activity Diagram ◽  
Activity Indices

Context. It is well known that the magnetic activity of solar-type stars decreases with age, but it is widely debated in the literature whether there is a smooth decline or if there is an early sharp drop until 1–2 Gyr that is followed by a relatively inactive constant phase. Aims. We revisited the activity-age relation using time-series observations of a large sample of solar twins whose precise isochronal ages and other important physical parameters have been determined. Methods. We measured the Ca II H and K activity indices using ≈9000 HARPS spectra of 82 solar twins. In addition, the average solar activity was calculated through asteroids and Moon reflection spectra using the same instrumentation. Thus, we transformed our activity indices into the S Mount Wilson scale (SMW), recalibrated the Mount Wilson absolute flux and photospheric correction equations as a function of Teff, and then computed an improved bolometric flux normalized activity index log R′HK (Teff) for the entire sample. Results. New relations between activity and the age of solar twins were derived by assessing the chromospheric age-dating limits using log R′HK (Teff). We measured an average solar activity of SMW = 0.1712 ± 0.0017 during solar magnetic cycles 23–24 covered by HARPS observations, and we also inferred an average of SMW = 0.1694 ± 0.0025 for cycles 10–24, anchored on a sunspot number correlation of S index versus. We also found a simple relation between the average and the dispersion of the activity levels of solar twins. This enabled us to predict the stellar variability effects on the age-activity diagram, and consequently, to estimate the chromospheric age uncertainties that are due to the same phenomena. The age-activity relation is still statistically significant up to ages around 6–7 Gyr, in agreement with previous works using open clusters and field stars with precise ages. Conclusions. Our research confirms that Ca II H & K lines remain a useful chromospheric evolution tracer until stars reach ages of at least 6–7 Gyr. We found evidence that for the most homogenous set of old stars, the chromospheric activity indices seem to continue to decrease after the solar age toward the end of the main sequence. Our results indicate that a significant part of the scatter observed in the age-activity relation of solar twins can be attributed to stellar cycle modulations effects. The Sun seems to have a normal activity level and variability for its age.

scholarly journals TRANSLATORS’ TRAINING: UKRAINIAN EXPERIENCE

2021 ◽  
Vol 25 (2) ◽  
pp. 112-135
Author(s):  
Ольга ЛЕМЕШКО ◽  
Валентина ГАПОНОВА
Keyword(s):  
Professional Training ◽  
Main Idea ◽  
Professional Activity ◽  
Successful Implementation ◽  
Main Task ◽  
Professional Programs ◽  
Translator Training ◽  
Training Programmes ◽  
High Level ◽  
Educational Professional

The main task of the higher educational establishment is to prepare graduates for modern dynamic national and international labour markets that demands to find the way into teaching practices, which can respond to the created expectations. Nowadays reality of the translation market reveals problems in translator training. Ukrainian teachers and scientists will have to re-think existing translator training programmes in terms of present-day market demands to professionals and to work out comprehensive educational professional programs. They should look for ways how to manage limitations caused by changes in the global situation taking into account that the profession of translator requires profound knowledge in various spheres of life. The successful implementation of future translators depends on their professional training that includes forming of communicative competence and also allows them to perform all the functional responsibilities provided for their profession. The main idea for this article is the relationship between the training process and the profession. The characteristics of today’s translation market have been examined and the issues that are addressed in modern translator training have been analysed. The definition of the term translation has been presented. Characteristics of translator’s professional activity have been distinguished and components of comprehensive educational professional programs were investigated. The requirements for a professional translator should be an integral part of the standard, as they are the subject of further elaboration. In international practice among the most important are the requirements of maintaining a high level of their own professional skills and knowledge, the ability to solve translation problems of a new type, the ability to translate and summarize texts in one language from another, regularly improve their skills. The content of the requirement, the characteristics of professional activity, the necessary knowledge and skills have been determined in the articles.

scholarly journals BASIC DIFFICULTIES AND DIRECTIONS OF DEVELOPMENT OF INFORMATION TECHNOLOGIES IN THE RUSSIAN FEDERATION FOR THE MIDDLE AND LONG-TERM PROSPECTS

2019 ◽  
Vol 2019 (3) ◽  
pp. 25-29
Author(s):  
Андрей Аверченков ◽  
Andrey Averchenkov ◽  
Елена Аверченкова ◽  
Elena Averchenkova ◽  
Федор Лозбинев ◽  
...  
Keyword(s):  
Public Administration ◽  
Information Technologies ◽  
Daily Practice ◽  
Digital Economy ◽  
Successful Implementation ◽  
Russian Society ◽  
Regional Government ◽  
New Information ◽  
Legal Frameworks

New benchmarks of the digital economy require the introduction of new information technologies into the daily practice of public administration. The main legal frameworks of the state development of the digital society in the medium and long term are considered on the example of the National Project “Digital Economy”. It is shown that the provision of a sufficient level of regional government in the conditions of information transformations is possible within the framework of the Federal Project "Digital Public Administration". Training and retraining of personnel in the field of information technologies is the most important condition for the successful implementation of the idea of informatization of Russian society, it is implemented by the measures of the Federal project "Personnel for the digital economy"

Influence of solar activity on variations in the density of the Earth’s upper atmosphere

2011 ◽  
Vol 51 (4) ◽  
pp. 546-549 ◽  
Author(s):  
S. I. Boldyrev ◽  
G. S. Ivanov-Kholodny ◽  
O. P. Kolomiitsev ◽  
A. I. Osin
Keyword(s):  
Solar Activity ◽  
Upper Atmosphere

scholarly journals Notes on the behaviour of trajectories of polynomial dynamic systems

2020 ◽  
Vol 313 ◽  
pp. 00014
Author(s):  
Irina Andreeva
Keyword(s):  
Dynamic Systems ◽  
Wide Spectrum ◽  
Modern Science ◽  
Seismic Stability ◽  
Phase Portraits ◽  
Main Task ◽  
Physical Processes ◽  
Science And Engineering ◽  
Research Stage

Dynamic systems play a key role in various directions of modern science and engineering, such as the mathematical modeling of physical processes, the broad spectrum of complicated and pressing problems of civil engineering, for example, in the analysis of seismic stability of constructions and buildings, in the fundamental studies of computing and producing systems, of biological and sociological events. A researcher uses a dynamic system as a mathematical apparatus to study some phenomena and conditions, under which any statistical events are not important and may be disregarded. The main task of the theory of dynamic systems is to study curves, which differential equations of this system define. During such a research, firstly we need to split a dynamic system’s phase space into trajectories. Secondly, we investigate a limit behavior of trajectories. This research stage is to reveal equilibrium positions and make their classification. Also, here we find and investigate sinks and sources of the system’s phase flow. As a result, we obtain a full set of phase portraits, possible for a taken family of differential dynamic systems, which describe a behavior of some process. Namely polynomial dynamic systems often play a role of practical mathematical models hence their investigation has significant interest. This paper represents the original study of a broad family of differential dynamic systems having reciprocal polynomial right parts, and describes especially developed research methods, useful for a wide spectrum of applications.

Multiwavelength SED as a Tool in Understanding Outbursts of Symbiotic Binaries

2012 ◽  
Vol 21 (1-2) ◽  
Author(s):  
A. Skopal
Keyword(s):  
Energy Distribution ◽  
Spectral Energy Distribution ◽  
Spectral Energy ◽  
Physical Parameters ◽  
X Rays ◽  
Symbiotic Stars ◽  
Physical Processes ◽  
Symbiotic Binaries

AbstractSymbiotic binaries consist of a few sources of radiation contributing to spectral energy distribution (SED) from hard X-rays to radio wavelengths. To identify the basic physical processes forming the observed spectrum, we have to disentangle the composite SED into its individual components of radiation, i.e., to determine their physical parameters. Spectral disentangling of different objects at different stages of activity allows us to understand the mechanism of their outbursts. In this contribution I demonstrate the method of multiwave-length modeling SEDs on the example of two classical symbiotic stars, AG Dra and Z And.

Remarks about factors shaping the heliosphere

2018 ◽  
Vol 92 (3) ◽  
pp. 329-335
Author(s):  
Romana Ratkiewicz ◽  
Wojciech Konior ◽  
Jan Kotlarz
Keyword(s):  
Status Report ◽  
Physical Processes ◽  
Content Type ◽  
General Review ◽  
New Information ◽  
Conceptual Paper ◽  
First Time ◽  
Practical Implications ◽  
Theoretical Results

Purpose The purpose of the paper is to give a brief description of the new topic introduced for the first time at the EASN Conferences. Design/methodology/approach The topic concerns the heliosphere, the nearest surrounding of the Sun and thus the nearest vicinity of the Earth. The heliosphere is created due to the interaction between the solar wind and the local interstellar medium. Findings This paper does not include any new information about the heliosphere and only introduces a new topic to this journal. It is briefly shown how heliospheric structures are formed, what factors affect a shape of the heliosphere, what measurements are made by Ulysses, Voyager and IBEX space missions (important for the heliosphere modeling) and how obtained data are used to validate theoretical results. Practical implications To categorize the paper under one of these classifications, research paper, viewpoint, technical paper, conceptual paper, case study, literature review or general review, the authors chose a paper type, general review, as the closest category to this paper. However, it is not a purpose of this paper to provide an extensive review of the community efforts to investigate the physical processes in the vicinity of the heliosphere interface. This is mostly a status report. Originality/value As the new topic in this journal, the article introduces in detail only a small number of aspects connected with heliosphere models. Interplanetary and interstellar magnetic field structures are primarily described. Other factors are only mentioned.

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