Tag Archives: model

MODEL OF SYSTEM DYNAMICS OF PROCESS OF TRAINING

UDC 519.76
doi: 10.26102/2310-6018/2019.24.1.006

A.V. Ganicheva, A.V. Ganichev


The relevance of this work is caused by importance of account in educational process of personal qualities of trainees. Importance of the solution of this problem is defined by the fact that competence-based approach assumes formation of future workers capable independently to work in various situations, to have an impact on others. When training in non-uniform educational collectives (groups) it is possible to allocate subgroups of pupils by different criteria: to abilities, progress, discipline, etc. Subgroups of trainees have an impact at each other. Force of this influence depends on the number of subgroups, of coefficients of influence and time of impact. As a result of mutual influence, it is possible of the trainee to move from one group to another. The article uses the method of mathematical modeling to analyze and account for the dynamic interaction of pupils in the team. The model is based on the system of differential equations of J. Forrester. The analytical solution of a system for a standard case in educational process – existence of three types of subgroups of trainees is received. A numerical example is given to illustrate the results. Results of its decision are presented graphically. Important special cases of the General system of differential equations (setting of relations between the coefficients of influence) are considered. The developed mathematical model will improve the quality of the educational process.

Keywords: : group of trainees, model, coefficients of influence, system of differential equations, solution.

Full text:
GanichevaGanichev_1_19_1.pdf

METHODS OF OPTIMIZING ECONOMIC AND SOCIAL SYSTEMS USING TECHNOLOGIES OF MODELING BUSINESS PROCESSES

UDC 004.9

G.B. Suyunova, N.A. Gaivoronskaya, E.V. Polovinko


This article describes several methodologies and tools that help to simulate business processes in an enterprise in order to make timely management decisions and optimize economic and social systems. The necessity of using various methods of modeling, reorganizing and automating business processes as a means of increasing the efficiency of solving management and decision-making problems in social and economic systems is indicated. It is noted that today the modeling of business processes of the organization is a traditional activity of business analysts of Russian enterprises, which can be a necessary tool for making correct management decisions. It is indicated that there are many different principles of notation. The article also noted that not all notations are equally applicable to the solution of various problems. The eEPC notation used to model business processes in the form of a sequence of events and functions is discussed in more detail, here are its advantages and disadvantages. It is indicated that the tool using the eEPC notation for process modeling is the ArisExpress platform, intended for integrated management of business processes. The article considers two key concepts of the specified modeling environment – these are the concepts of Event and Activity. It is noted that the event always causes the necessity of execution of a concrete action, and the execution of this action always ends with the onset of an event. It is also indicated that in order for the diagram to be more complete and clear, the notation provides for several more standard elements, such as: Role», «Document», «IT system». As a conclusion, it is noted that when constructing these models, it is very simple to make mistakes without knowing the rules by which they are compiled. Such errors lead in the subsequent to the discrepancy of the logic of the process, and as a result – the adoption of incorrect or untimely management decisions.

Keywords: control, decision-making, social system, economic system, notation, optimization, model.

Full text:
SuyunovaSoavtori_1_1_18.pdf

THE MULTIPLE CHOICE IN THE MANAGEMENT OF DEVELOPING SYSTEMS

UDC 681.3

D. A. Nedosekin

In this paper we consider the problem of developing control related systems (CRS). They affect the way in which development is carried out adjacent to high technology systems. The article focused on the creation of algorithmic procedures, allowing for the management of CRS. The choice of a promising option in the optimization problem comes from the fact that ITT system is a progressive system in the structure of CRS. In procedure identified and described three modules. The block diagram of the algorithmic procedure of control selection boundary conditions for the development of a singly linked system and a block diagram of the algorithmic procedures for the management of reallocation of the financial resource of the base system. Procedure multialternative choice has the character of formalizing expert knowledge in the form of grades compatible promising directions of development of promotion system and can achieve effective interaction of all components connected developing system. The choice of option a valid boundary conditions for the development of information and telecommunication technologies (ITT) in the region is carried out by experts on the basis of a comparison of dominant strategies. Analyzed the sample statistics over a certain period of development component of the ITT in the period that gave opportunity to confirm the performance optimization.

Keywords: :decision making, system, multialternative aggregation, optimization, management, model, algorithm.

Full text:
Nedosekin_1_1_18.pdf

ADAPTATION OF LINEAR METHODS PROGRAMMING TO THE QUESTION
OF HARMONIZATION OF OPTIMAL PLANS

UDC 519.53

M. L. Lapshina, A. S. Chernykh, N.Y. Yudina

The current state of enterprises is largely determined by the economic activity of structural divisions, whose activities are decisive in the production of products for various purposes. For more precise coordination of plans, we formulate and consider the possibility of further optimal solution of the problem of harmonization of optimal plans at the economic level, which can be considered as one of the partial productions of the general problem of the relationship between the local and global interests of an enterprise or a company that has been delivered and studied already in the first economic and mathematical studies conducted both in our country and abroad. The decomposition method is associated with the approximation approach used in the development of a multi-step optimization system for prospective economic plans. The optimal plan for the global task is based on variant calculations of the optimal plans for certain collections of local objects, and it is possible to specify a formal method for distinguishing such structures. A specialized method of decomposing a convex optimization problem is also constructed, describing one of the possible approaches to solving some reconciliation problems. The relationship between product prices, resources and objectively determined assessments of global and local problems is investigated, as well as the possibility of using these estimates in the functioning of the economic mechanism.

Keywords: optimality, model, resources, vector, products.

Full text:
LapshinaSoavtors_3_1_17.pdf

THE ANALYTICAL MODEL OF THE TRANSMISSION OF THE SYNC FRAME BEACON FRAME IN THE WIRELESS MESH NETWORKING STANDARD IEEE 802.11 S

UDC 621.396

A.A.Zhilina, M.A.Druzhinin

The paper solves several problems: a study of the principles of wireless cellular networks; the analysis of the characteristics of the implementation of the synchronization in wireless mesh networks IEEE 802.11 s; held to develop the analytical model of the mechanism of transmission of the sync frame Beacon frame to the network full-mesh topology. In the design and implementation of a wireless mesh network IEEE 802.11 s opportunities to correct the transfer settings for synchronization of frames depending on the number of mesh devices in the network and obtain the specified probability of completed delivery of synthroidnow. It is possible to form a wireless mesh network IEEE 802.11 s with the predicted efficiency and expected throughput.

Keywords: model, wireless network, radio wave propagation, synchronization.

Full text:
ZhilinаDruzhinin_4_16_1.pdf

THE CHARACTERISTICS OF MODELS OF DATA TRANSMISSION CHANNELS

UDC 681.3

E.S. Zatsepin

In this paper the main characteristics of communication channels are given. The relationship is shown between the maximum possible information rate and bandwidth in the communication channel. . The advantage is demonstrated of using a digital method of data processing in comparison with analog. The methods of data processing method direct sequence and frequency hopping methods. The territorial network at the regional levels are often used radio relay lines is justified. The advantages of point-to-point connections are shown.

Keywords: channel, model, protocol, characteristics, efficiency, data.

Full text:
Zatsepin_4_15_2.pdf

PROSPECTS OF DEVELOPMENT OF MODERN INFORMATION PROCESSING SYSTEMS

UDC 681.3

A.A. Aksenova

In the paper there is a discussion of modern perspectives of development of computer technology. It is noted that the main trend in the expansion of computer technology, the existing conditions can be considered as a subsequent increase in the areas of their use. The main components are described that make up intelligent systems.

Keywords: information, channel, process, model, system, element, computer.

Full text:
Aksenova_4_15_1.pdf

ABOUT THE MODELS OF MOVEMENT IN ALTERNATIVE ENERGY SOURCES

UDC 681.3

I.V.Kryuchenko
The paper is devoted to the analysis of alternative energy sources, which is a phenomenon of the movement. The features of this movement are analyzed.

Keywords: energy, movement, model, power.

Full text:
Kryuchenko_1_14_1.pdf

THE USE OF INFORMATION TECHNOLOGIES IN E-BUSINESS

UDC 338.436

S.Y.Chernikov, E.V.Bolyuh

The paper studied the main features of the use of information technology for e-business objectives. The main types of models are considered.

Keywords: information technology, e-business, model.

Full text:
ChernikovBoluh_3_14_3.pdf

THE PREDICTION OF THE SCATTERING CHARACTERISTICS OF THE COMPOSITE METAL CYLINDER

UDC 621.396

Y.A.Mishin, A.G.Sklyar, D.V.Rusanov

TThe analysis of methods of predicting dynamic characteristics is given. We consider the problem of predicting the scattering characteristics of metal composite cylinder. The results of the evaluation of the range of wavelengths to predict depending on the size of the base of the cylinder is considered

Keywords: : electrodynamics, forecasting, scattering, model, method, wave.

Full text:
MishinSklyarRusanov_3_15_1.pdf