The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The paper deals with algorithmic issues of the process of separating periods in the pulsed signal of the radial artery. The periodization algorithm is a set of various procedures for processing an impulse signal that can confidently allocate periods in a signal. It precedes the rest of the analysis stages. The procedures used in the algorithm are described. The expediency of their application is discussed...
Consideration was given to efficient mechanisms to reduce dimensions of the problem of seeking the critical power plant nodes built in the classical algorithms for seeking on graph a network endangered by negative actions.
The article examines key quality of life indicators and living standards at the macroeconomic and microeconomic levels. The HDI and GDP per capita of countries and the unemployment rate at the regional level were selected as indicators of the standards of living. The results of the work are the creation of the HDI growth forecast for countries, the identification of the best trend for GDP per capita...
A multi-step discrete-time inventory control problem that occurs in the supply chain with several alternative suppliers is described in this paper. Algorithms for constructing optimal strategies for inventory control and suppliers selection are proposed. Simulation results are provided.
This report describes algorithms for financial bubbles detection in real time mode. The various theoretical and practical aspects of algorithms for monitoring financial indexes in order to detect bubbles are presented. A comparative analysis of the properties of algorithms based on the results of experiments is carried out.
The paper considers the technique of calculation of steady state pressure and flow distribution of raw gas in gas gathering networks of gas fields, providing a given level of total production from wells and satisfying technological limitations in the form of boundary conditions. Since the group gathering schemes using the internal energy of the gas at the well head are treelike configurations of gas...
The article describes the main directions of the modern theory of business processes. There are provided a brief overview of the main models and methods for each of these areas.
On the information security of ACS TP negatively influenced by increasing their integration with enterprise systems management, as well as the wide spread of remote access technologies. Additional information security risks arise on the background of the smooth transition analogue of technology on hardware platform based x86, and active implementation of IP technology in the ACS environment. The combination...
The article gives consideration to the problem of the open dynamic systems' modeling. We propose its solution with the help of stochastic systems of differential equations. We provide the methodology of modeling and analyze the certain example.
The article describes the basic methodological approaches for the application of modern information technology in the task of optimum distribution of heat and electrical loads the thermal power plants (TPP) with complex equipment in various stages of station output to the market of electricity and power. Discusses the main criteria of optimization algorithms and methods of their implementation. Special...
The research identifies the priority of the improvement in Boards of Directors in the Russian power companies to enhance their corporate governance in the interests of investors. This is caused by numerous inconsistencies between the responsibility in the framework of the Boards of Directors in the current corporate practice and the principles and recommendations of the Code of Corporate Governance...
Modern aspects of innovative management in transport system are based on strategic priorities in branch development and the project management approach. This approach can solve the problem of justification of the system of criteria for selecting technical and technological innovations and assessing their competitiveness. The result of this approach is determination of the balance level of the aggregate...
Large-scale systems use distributed data processing systems in their work. An important problem in the design of such systems is the optimal allocation of data files by the nodes of the computer network. The article deals with the problem of the optimal allocation of files and their copies over the nodes of an unreliable large-scale distributed system.
The problems of decision-making by the coalition of borrowers are considered. The main participants of housing crediting are borrowers and creditors. To find a compromise between contract savings, mortgage lending, state support the mathematical model for financial processes is used. The optimizing task for calculation of mortgage contracts parameters in the case of using the casual mechanism to the...
The software tools that were used to simulate the impacts from the change of prices for fuel and energy on economic subjects of the Russian economy are described. The equations of product input-output balances are used here to coordinate the decisions of economic subjects. An algorithm for obtaining a solution of a system of linear inequalities of this problem is proposed. It based on the method of...
The proposed method of ranking the branches of a distributed corporate systems for key performance indicators of their activities, the implementation of which gives a comparative evaluation of each of the branches for further modeling of economic and production scenarios.
Existing approaches to system optimization (optimal design) under uncertainty are considered. The exact formulation of constrained optimization problem with interval uncertainty of goal function and constraints parameters is given. Mathematical theory of intervals comparison including the precise definition of minimum and maximum ranges is stated. On the basis of this theory the determination method...
The variability of the parameters of the signal of the pulse the radial artery in a number of diseases assessed, in particular, the early stage of arterial hypertension in childhood and adolescence, mitral valve prolapse, lung cancer. The ratios of the vibrational components of vegetative regulation for various types of diseases revealed. It is shown that the degree of variability depends, in part,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.