scholarly journals Analytical and computational analytical mathematical models of the mosquito population in the middle zone of the Russian Federation

2021 ◽  
Vol 848 (1) ◽  
pp. 012202
Author(s):  
F I Vasilevich ◽  
V V Kalmykov ◽  
A M Nikanorova ◽  
E V Koroleva ◽  
E S Engasheva
Keyword(s):  
Mathematical Models ◽  
Russian Federation ◽  
Mosquito Population ◽  
Middle Zone ◽  
The Russian Federation

DIFFRACTION ANALYSIS OF DEFORMED METALS: Theory, Methods, Programs

2019 ◽  
Author(s):  
Faina Satdarova
Keyword(s):  
Experimental Design ◽  
Dislocation Density ◽  
Mathematical Models ◽  
Diffraction Analysis ◽  
Experimental Research ◽  
Russian Federation ◽  
Statistical Estimation ◽  
X Rays ◽  
National University ◽  
The Russian Federation

General analysis of the distribution of crystals orientation and dislocation density in the polycrystalline system is presented. Recovered information in diffraction of X-rays adopting is new to structure states of polycrystal. Shear phase transformations in metals — at the macroscopic and microscopic levels — become a clear process. Visualizing the advances is produced by program included in package delivered. Mathematical models developing, experimental design, optimal statistical estimation, simulation the system under study and evolution process on loading serves as instrumentation. To reduce advanced methods to research and studies problem-oriented software will promote when installed. Automation programs passed a testing in the National University of Science and Technology “MISIS” (The Russian Federation, Moscow). You score an advantage in theoretical and experimental research in the field of physics of metals.

scholarly journals Safety of transport processes of the trucks determined by reliability.

2015 ◽  
Vol 2015 (2) ◽  
pp. 88-92
Author(s):  
Владимир Самусенко ◽  
Vladimir Samusenko ◽  
Наталия Сакович ◽  
Nataliya Sakovich ◽  
Евгений Христофоров ◽  
...  
Keyword(s):  
Probability Theory ◽  
Mathematical Models ◽  
Russian Federation ◽  
Transport Processes ◽  
The Russian Federation

In article questions of safety of transport processes on roads of the Russian Federation of the vehicles caused by reliability are considered. Authors considered activities on safety of the movement at design stages of the created car. For a solution authors used mathematical models on the basis of probability theory.

scholarly journals Application of information technologies in solving environmental problems

2021 ◽  
Vol 937 (2) ◽  
pp. 022030
Author(s):  
A V Eskov ◽  
I I Kiryushin ◽  
Yu S Medvedev ◽  
V V Zhuchkova
Keyword(s):  
Mathematical Models ◽  
Russian Federation ◽  
Information Technologies ◽  
Environmental Problems ◽  
Environmental Situation ◽  
Animal Populations ◽  
The Russian Federation ◽  
Software And Hardware

Abstract The examples of software and hardware solutions used in the Russian Federation, which can be used to monitor the environmental situation in various territories, are given. The possibility of using mathematical models in the fight against environmental problems, in particular, for tracking animal populations, is shown.

scholarly journals Analysis of mathematical models for calculating following intervals in main flows the prevailing road conditions in the Russian Federation

2020 ◽  
Vol 17 (6) ◽  
pp. 714-725
Author(s):  
A. Yu. Mikhailov ◽  
E. L. Popova
Keyword(s):  
Mathematical Models ◽  
Russian Federation ◽  
Queue Length ◽  
European Part ◽  
Current Level ◽  
The Russian Federation ◽  
1960S And 1970S ◽  
The 1960S ◽  
The Moment ◽  
Market Relations

Introduction. This paper presents the results of a study on the methods for calculating the capacity of level crossings. The purpose of writing this research paper is determine the best methodology for calculating the intervals in the main flows for the prevailing road conditions in the Russian Federation, that a new methodology to calculate capacity adapted to domestic road conditions would be developed in the future.Materials and methods. In recent decades of market relations in the Russian Federation, one can note a rapid increase in motorization in human settlements. The number in 550 vehicles per 1000 people in domestic entities is expected to have been increasde by 2025, which is significantly higher than the current level in European part of the Russian Federation. It is important to note that when the number of vehiclec is increasing, which level is about 80%, it is essential to increase road crossings capacity. Results. At the moment the methodology for calculating capacity and queue length is the same. It should be noted that the current models are not properly described in the domestic studies, but the calculations were made using models developed in the 1960s and 1970s.

THE MATHEMATICAL MODELS FOR CONTROL, DIAGNOSTICS AND FORECASTING THE NATIONAL SECURITY OF THE RUSSIAN FEDERATION

2016 ◽  
pp. 43-51 ◽  
Author(s):  
V.V. Kluev ◽  
A.F. Rezchikov ◽  
V.A. Kushnikov ◽  
V.A. Ivaschenko ◽  
A.S. Bogomolov ◽  
...  
Keyword(s):  
Mathematical Models ◽  
National Security ◽  
Russian Federation ◽  
The Russian Federation

scholarly journals NEW APPROACHES TO ASSESSING AND FORECASTING MORBIDITY WITH ENTEROVIRUS (NON-POLIO) INFECTION IN THE RUSSIAN FEDERATION USING MATHEMATICAL MODELS

2021 ◽  
pp. 108-117
Author(s):  
I.V. Feldblium ◽  
◽  
V.G. Akimkin ◽  
A.V. Alimov ◽  
M.V. Piterskiy ◽  
...  
Keyword(s):  
Mathematical Models ◽  
Russian Federation ◽  
Statistical Parameters ◽  
Exact Test ◽  
Epidemic Process ◽  
Epidemiologic Surveillance ◽  
Research Goal ◽  
The Russian Federation ◽  
And Control

At present it is impossible to develop epidemiologic surveillance and control over any infection regarding studies on dynamics of morbidity, seasonality and periodicity without using mathematical modeling techniques. Our research goal was to study regularities in manifestations of epidemic process for enterovirus (non-polio) infection (EVnI) in the Russian Federation over 14 years (2006–2019) using mathematical models (linear, logarithmic, power, and exponential approximation).An optimal mathematical model was selected using three statistical parameters, namely determination coefficient, Fischer’s exact test, and standard error. Periodicity of rises and falls in morbidity was calculated with Fourier one- dimensional spectral analysis. Intra-year dynamics of morbidity with EVnI was estimated basing on monthly spread of the disease cases on the RF territory. Classic seasonal decomposition, Census I technique, was applied to analyze time series of monthly morbidity. It was determined that EVnI epidemic process was unevenly spread over years in the RF in the examined period of time (2006–2019) and there were two opposite trends in it; the first one lasted from 2006 to 2010 when morbidity was declining and the second was from 2010 to 2019 when it was growing. Having analyzed manifestations of EVnI epidemi- ologic process in long-term dynamics given its uneven spread as per years, we established that it was advisable to use mathematical models approximated as per separate time periods. Average long-term morbidity with EVnI amounted to 8.09 0/0000 in the RF in 2010–2019 with growth rate being equal to 17.7 %. Maximum value was registered in 2017 (16.32 0/0000). An unfavorable prediction for further epidemic situation development was revealed for the examined pe- riod. The epidemic process was characterized with 4-year periodicity and summer-autumn seasonality with peaks usually occurring in August and September. Rates that characterized intensity of the trends in long-term morbidity dynamics and were calculated with mathematical models differed authentically from those obtained via conventional calculations of average values (χ=11.08; d.f.=1; p=0.0009).

scholarly journals Complex machines for the production of onions on resource-saving technologies

2019 ◽  
pp. 141-145 ◽  
Author(s):  
N. P. Larushin ◽  
V. F. Pivovarov ◽  
O. N. Kuharev ◽  
Yu. A. Vershinin
Keyword(s):  
Uniform Distribution ◽  
Russian Federation ◽  
Sharp Increase ◽  
European Countries ◽  
Middle Zone ◽  
Agricultural Machinery ◽  
Labor Costs ◽  
Resource Saving ◽  
Energy Carriers ◽  
The Russian Federation

Relevance. The most common and most mastered method of growing onions, used in the middle zone of the Russian Federation, as well as in the northern part of European countries, is the cultivation of turnip onions from onion. It is believed that this method provides 75% of the production of the entire onion harvest. Due to the sharp increase in the prices of energy carriers, fertilizers, pesticides and agricultural machinery, the production of sharp varieties of onions, grown in the crop, has become unprofitable, and marketable products have lost competitiveness due to high costs. Significant changes in the reduction of labor costs can be achieved by improving the technology and technical means for the production of onions, creating conditions for their work. The effectiveness of designs for sowing seeds of onions, onion sets and planting onions-uterus is determined by the uniform distribution of the bulbs by area of nutrition, depth and their embedding.Results. The material presented in the work is devoted to the analysis of designs and some results of studies of a complex of machines for the production of onions developed in the Penza GAU. 

Study of factors influencing the development of the helicopter industry in the Russian Federation (based on economic and mathematical models)

2020 ◽  
Author(s):  
D.S. Grishina ◽  
◽  
Y.A. Dolganova ◽  
Keyword(s):  
Mathematical Models ◽  
Russian Federation ◽  
Factors Influencing ◽  
The Russian Federation

The study examined groups of factors that could potentially affect the helicopter industry of the Russian Federation. Based on them, economic and mathematical models were built, including forecasts for the helicopters' production, and the development directions of the Russian helicopter industry were determined.

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