Examples of the mathematical model of the management company
The article discusses Two mathematical models of housing and utilities services organization as an example of a managing company are considered. The first model is based on balance equations of the organization. It takes into account and systematizes income and expenses of a managing company....
The modelling of postmortem heat transfer and estimating the time of death
This article analyses different mathematical models of the process of postmortem heat transfer in an adult cadaver based on postmortem temperature dynamics. A model of heat transfer in a newborn cadaver presented as a finite cylinder is examined in detail. An important factor in constructing a mathematical ...
About one training course of mathe-matical modeling
A program of the general course of mathematical modeling coordinated with modeling of transport flows is submitted.
1. Гасников А., Дорн Ю., Прохоров А., Швецов В. Как бороться с пробками? // Троицкий вариант. 2012. № 117. С. 6—7....
A mathematical simulation and a numerical investigation of dynamics of intramolecular tautomerny transformation without considering processes of a proton relaxation. Part I. A description of a mathematical model
... Балтийского федерального университета им. И. Канта. Вып. 10. С. 79—93.
7. Ландау Л. Д., Лифшиц Е. М. Квантовая механика. М., 1963.
Kvitko G., Kuzin E., Latyshev К., Shott D.
mathematical model, hydrogen binding, proton, Schrödinger equation, adiabatic model potentials, statistical operator, probability of tautomerny transformation.
The methodological and mathematical implementation of the integrated controlling theory
... метод научного познания // Вестник Сургутского государственного педагогического университета. 2013. № 3. С. 192—196.
integrated controlling, methodology, modelling, mathematical model
A modeling the interaction of a oxygen plasma with a positively charged microsatellite with the molecular dynamics modeling method
... электронов и ионов тепловой плазмы в электрическом поле спутника методом молекулярной динамики // Там же. 2014. № 10. С. 47—52.
Zinin L., Sharamet A, Vasileva A.
mathematical modeling, thermal plasma, molecular dynamics method, charged satellite
An oscillatory excited molecular nitrogen in the ionospheric plasma
The mathematical model for research of the non-stationary processes proceeding in ionosphere and plasmasphere of Earth is presented. This model allows to investigate dynamics of interaction charged and neutral components of ionospheric plasma, and also to reveal a contribution ...
Development of a mathematical model for the process of rocket fuel bubbling with liquid nitrogen
To achieve an optimum temperature of rocket fuel, its negative temperature and the amount of its purification from impurities are necessary. For this purpose, a mathematical model of the temperature dependence inside the bubbler has been developed in this article.
Vybornov N. A., Protasevich M. N.
rocket, mathematical model, bubbler, temperature, rocket fuel, liquid nitrogen, transfer function
The role of statistical and economic and mathematical modelling in applied research
... increasing the effectiveness of marketing activities and the management of business units and institutional structures serves as a framework for describing current trends in applied research on the basis of statistical and economic-mathematical (SEM) modeling. The authors explore the possibilities of using modern information technologies in applied economics and management studies, the prospects of economic agreement studies based on SEM modeling in STATISTICA ™ and MATLAB ™.
1. Велика ...
An analysis of mathematical models of the stress state of the outer shell of the roller one-way clutches
The outer shell is an important constructive element of roller one-way clutches. Currently, for the calculation of the stress state of the outer shell using the mathematical models obtained based on the essential assumptions. In the article the analysis is carried out and recommendations about use of design mathematical models are made. It is established that at change of number of wedging rollers in a range from 3 to 10 ...
Mathematical modeling of a injury of a backbone
A plenty of proceedings of various disciplines fundamental and applied science is devoted to studying of vertebral damage. The special role in studying this pathology is played with methods of mathematical modelling since allow to predict development of adverse deformations of a backbone and to optimize methods of elimination of these damages. Using mathematical model three-vertebra a complex the algorithm of surgical treatment of typical spinal damages ...
Simulating of non-stationary processes in the ionospheric plasma
... СССР. 1984. Т. 279, № 1. С. 80—83.
11. Chetverushkin B., D’Ascenzo N., Ishanov S., Saveliev V. Hyperbolic type explicit kinetic scheme of magneto gas dynamics for high performance computing systems // Russian Journal of Numerical Analysis and Mathematical Modeling. 2015. 30(1). P. 27—36.
Bogomolov K., Ishanov S., Kashchenko N., Matsievsky S.
mathematical model, numerical simulating, ionosphere, plasmasphere, concentration, velocity, temperature, chemical kinetics, ambipolar diffusion, energy equation,...
An instability of the equatorial F-layer of the ionosphere under conditions of alternating electric fields
The results of numerical simulation of Rayleigh-Taylor instability under conditions of alternating electric fields on the basis of electrodynamically consistent mathematical model of the Equatorial F-layer of the ionosphere.
1. Грэд Г. О кинетической теории разреженных газов // Механика. 1952. Вып. 4. С. 71—79 ; Вып. 5. С. 61—96.
2. Гершман Б. Н. Динамика ...
A high resolution model of the equatorial F-layer of ionosphere
... mass spectrometer and incoherent scatter data MSIS 2. Composition // J. Geophys. Res. 1977. Vol. 82, N. A1. P. 2148—2156.
Kashchenko N., Ishanov S., Matsievsky S.
ionosphere, thermosphere, F-layer, Rayleigh-Taylor instability, electric field, mathematical model, numerical simulation.
Teoretical nonstationary two-dimensional modal with altitude-longitudinal variations of ionosphere parameters
... «Интеркосмос-19» // Препринт № 45(734). М., 1987.
5. Kohnlein W. A. Model of thermospheric temperature and composition // Planet. Space Sci. I980. Vol. 28, № 1. P. 225—243.
Bogomolova M., Ishanov S., †Klevtsur S., Kozhurova A., Latyshev K.
mathematical model, ionosphere, thermosphere wind
Modeling of dynamics of distribution of attention in protses-sah a goal-setting
... mechanism of focusing attention in the process of formulating objectives by people are considered. A connection has been shown between the development of emotional experience, keenness of attention and the value containing the excitation zone stimulus. A mathematical model was devised and tested. The model determines changes in keenness of attention depending on the intensity of emotions and the distance between the stimulus and the current point in the space of mental images. The model is based on the application ...
Problems of modeling of the working processes of a stationary plasma engine
Today in creation of mathematical models of the stationary plasma thruster (SPT) a certain advance is noticeable, but all these models are based on empirical laws with a possibility of application to concrete type of the engine. The paper considers the possibility of constructing a mathematical ...
On the mathematical modeling of the space of mental images
This article stresses the need to use a mathematical model of the space of mental images in psychology, medicine, and other sciences. The author identifies the relation between such space and the space-time of physics. The article shows opportunities for structuring the space and introducing different types ...
Mathematical modelling of filtration processes of moisture in heavy soils
A mathematical model of filtration of moisture in heavy soils. The transfer of a film of moisture on the surface took into account.
1. Hallaire M. Le potential efficace de l’eau dans le sol en regime de dessechement // L’eau et production vegetale. Paris: I....
An algorithm and model of data saving for solving the problem of satellite-plasma interaction by the molecular dynamic method using the CUDA technology
This article considers a parallel algorithm of the mathematical model of interaction between a charged small satellite and thermal space plasma. The main problem of the algorithm implementation is to maintain the total amount of current data for each calculator and to synchronize and minimize exchanges. The range ...
Mathematical Model of Intramolecular Tautomeric Transformation and the Processes of a Relaxation of the Proton
... Ширков Д. В.
Введение в теорию квантованных полей. М., 1973.
Пантел Р., Путхов Г.
Основы квантовой электроники. М., 1972.
Kvitko G. V., Kuzin E. L., Schott D. V.
mathematical model, proton, tautomeric transformation, proton relaxation.
Modelling in Food Safety Control
This article proves the problem of food safety control to be multi-aspect. The author suggests applying the methods of mathematical modelling to food safety control.
Методология и методика определения уровня продовольственной безопасности страны // АПК: экономика, управление....
An analysis of mathematical models of the deformation state of the outer shell of the roller one-way clutches
The outer shell is an important component influencing on the working capacity of roller one-way clutches. The analysis is carried out and recommendations about use of mathematical models for calculation of deformation of outer shell are made. It is established that at change of number of wedged rollers in a range from 3 to 7 there is a nonlinear decrease of value of a radial deformation, and in a range from 7 to 30 its increase....
Multiple-factor mathematical models of heterogeneous metasystems
Nonlinear mathematical modeling of physical processes in heterogeneous metasystems with bubble or a solid-state filler allows to receive the parities convenient for numerical calculations and comparison of theoretical results with the data of experiments. For creation of almost ...
Optimization of Repeatability Injured Backbone with the Help of Rigid Laminas on the Basis of a Mathematical Model of a Three-Vertebra System
... высоких технологий в промышленности». СПб., 2008. С. 161.
Sedov R., Orlov S., Bobarykin N.
Modeling of human’s three-vertebra system and optimisation of fixation constructions // The International Conference Mathematical modeling and computational physics.
Sedov R. L., Orlov S. V., Latishev K. S.
mathematical modelling, the ordinary differential equations, numerical methods, optimization, biomechanics.
Modeling the formation of ion shadows behind a positively charged microsatellite in an oxygen plasma by the molecular dynamics method
... Вестник Балтийского федерального университета им. И. Канта. Сер.: Физико-математические и технические науки. 2017. № 2. С. 29—34.
Zinin L., Sharamet A., Vasileva A.
mathematical modeling, thermal plasma, molecular dynamics method, charged satellite, ion shadow
Application of spatial analysis of morbidity and mortality from COVID-19 (the case of the Pskov region)
... distribution of patients should be taken into account for the analysis of processes in individual settlements.
Ivanova N.V., Samarkin A.I., Belov V.S, Prokofiev M.S.
COVID-19, the pandemic of the new coronavirus, morbidity and mortality from COVID-19, mathematical modeling, GIS mapping, medical geography
Mathematical modeling of the process of attracting customers for paid SAAS solutions
... the advertising company and allowed us to evaluate its effectiveness. As a result, the process of attracting customers was adjusted, and its effectiveness was increased.
Bilyk K. B., Tkachenko S. N., Bodnya A. V.
CRM system, SaaS solution, mathematical model, linear models