scholarly journals Design of the Cemented Doublet – Software Application

2021 ◽  
Vol 26 (1) ◽  
pp. 13-16
Author(s):  
Luiza Sonia Oprean ◽  
Corina-Mihaela Gruescu
Keyword(s):  
Optical System ◽  
System Analysis ◽  
Point Of View ◽  
Design Algorithm ◽  
Software Application ◽  
Imaging Application

From optical point of view, an imaging application includes the sensor (CCD or CMOS) and the objective. The simplest objective consists of a cemented doublet. The paper proposes a design algorithm of the doublet and describes a software application based on this algorithm. The results provided by the original software are validated by means of a professional application in optical system analysis.

PORTFOLIO MANAGEMENT OF ENERGY SAVING PROJECTS BASED ON THE MARKOVITS THEORY

2021 ◽  
pp. 79-91
Author(s):  
S. Kiyko ◽  
L. Deineha ◽  
M. Basanets ◽  
D. Kamienskyi ◽  
A. Didenko
Keyword(s):  
Energy Saving ◽  
Portfolio Optimization ◽  
Portfolio Management ◽  
Quadratic Function ◽  
Subject Area ◽  
Linear Constraints ◽  
Point Of View ◽  
Investment Portfolio ◽  
Financial Investment ◽  
Software Application

The goal of the work was to identify research and compare methods of portfolio management of energy saving projects and to develop software for optimizing portfolio investments using several methods. The key elements and strategies of creating an effective investment portfolio are considered: diversification, rebalancing, active portfolio management, passive portfolio management. Given the basic principles of investment theory, the task of portfolio investment is to form an investment portfolio with known shares of certain assets to maximize returns and minimize risk. To solve this problem, the method of Harry Markowitz, known as modern portfolio theory, was chosen. This is the theory of financial investment, in which statistical methods are used to make the most profitable risk distribution of the securities portfolio and income valuation, its components are asset valuation, investment decisions, portfolio optimization, evaluation of results. From a mathematical point of view, the problem of forming an optimal portfolio is the problem of optimizing a quadratic function (finding the minimum) with linear constraints on the arguments of the function. Methods of optimization of portfolios of energy saving projects taking into account the specifics of the subject area are analyzed. According to the results of the analysis, the methods of finding the maximum Sharpe’s ratio and the minimum volatility from randomly generated portfolios were chosen. A software application has been developed that allows you to download data, generate random portfolios and optimize them with selected methods. A graphical display of portfolio optimization results has also been implemented. The program was tested on data on shares of energy saving companies. The graphs built by the program allow the operator to better assess the created portfolio of the energy saving project.

scholarly journals USE OF ORGANIZATION AND ENGINEERING IN EVENT TOURISM

2020 ◽  
pp. 22-28
Author(s):  
Svitlana Tyshchenko ◽  
Taisiіa Chernyshova ◽  
Snizhana Mutasova
Keyword(s):  
System Analysis ◽  
Technical Support ◽  
Point Of View ◽  
Practical Significance ◽  
Wide Audience ◽  
Main Research ◽  
Goal Development ◽  
Effective System ◽  
Event Tourism ◽  
First Time

The article discusses the main problems of the implementation of event tourism in certain territories, which primarily include: short-term event; the scale of the event; placement in a natural area; lack of sufficient means of accommodation and services for tourists; style of events and the like. Goal. Development of an effective system of organizational and technical support for event tourism events. Methodology. The main research methods, in order to achieve the goal, are the analysis of engineering support, the classification of mobile homes for event tourism and the modeling of requirements for them based on the system analysis of event tourism technologies. Results. The organizational and technical support of event tourism activities proposed in the article will reduce the technogenic load on the local natural landscapes of natural areas in the places where event events are held. This will contribute to the formation of a higher culture, the style of their conduct, which will make it possible to undertake events of event tourism in regions that are even more attractive to a wide audience of tourists not only in our country, but also abroad. This method of organizational and technical support can also be used for holding rallies, forums, conferences and other events. Important for the success of the development of event tourism and the correct organization of organizational and engineering support is the formation of a calendar of events, which makes it possible to approach all future events in a planned manner, from the point of view of engineering and technical support, later will give its positive results. Scientific novelty. The current state of the use of mobile houses in event tourism on the territory of Ukraine is analyzed for the first time. For the first time, the calendar of the territory of the Stanishovskaya OTG of the Zhytomyr region was compiled for 2020-2021. Practical significance of the study lies in the fact that the compiled calendar of event tourism will be used by OTG "Stanishovskaya" in full and taking into account our recommendations regarding the holding of mass events.

scholarly journals EFFICIENT ENGINEERING IN DEVELOPMENT OF CONSTRUCTION SECTOR COMPETITIVENESS

2021 ◽  
Vol 21 (3) ◽  
pp. 90-99
Author(s):  
O.N. Bekirova ◽  
◽  
S.A. Barkalov ◽  
M.S. Trifonova
Keyword(s):  
System Analysis ◽  
Consumer Preferences ◽  
Optimal Solution ◽  
Real Estate Market ◽  
Point Of View ◽  
Economic Conditions ◽  
Construction Sector ◽  
Construction Enterprise ◽  
Modern Economic ◽  
Optimal Construction

The COVID-19 pandemic has really become a real shock for the whole world. The way of life has changed not only for people, but also for companies in various industries. Today, the real estate market, like many other industries, is in conditions of economic instability. The study highlights the problems faced by the construction sector in the current conditions of the coronavirus pandem-ic. One of these problems is the sustainable competitiveness of construction and its compliance with new consumer preferences. Aim. The study of the influence of engineering solutions and other fac-tors on the competitiveness of construction in modern economic conditions, the definition of key criteria. Development and description of the decision-making methodology for choosing the optimal construction enterprise from the point of view of competitiveness. Materials and methods. The methods of system analysis, optimization methods, hierarchy analysis and decision theory are ap-plied in the work. Within the framework of the proposed methodology, the author's method of identifying key competitiveness criteria has been developed. Since the problem of choosing the optimal solution from among the alternatives is based on a multi-criteria approach, the use of this method is quite appropriate. The template for the formation of the methodology was identified based on the analy-sis of existing research in this area. Results. The author summarizes and supplements the criteria and factors affecting the competitiveness of construction organizations in the study. The author's method of making a decision on determining the optimal construction enterprise from the point of view of competitiveness based on the criteria considered by the author is presented. This technique includes several stages: 1) forming a goal; 2) formation of criteria by which organizations will be evaluated; 3) calculation of criteria for each organization and bringing them to a homogeneous type of data; 4) building a tree of goals and a matrix of priorities; 5) Determining the values of priority vectors for each organization under study. Conclusion. The total influence of criteria and engineering solutions on the competitiveness of construction is determined. In this regard, the implementation of the con-struction project should be carried out taking into account the strategic goals of the organization and binding to the identified criteria. The proposed methodology is developed for Russian construc-tion companies operating in modern economic conditions.

scholarly journals MODELING THE DEVELOPMENT OF THE GAS INDUSTRY IN UKRAINE

2021 ◽  
Author(s):  
Vitaliy Makarov ◽  
◽  
Mykola Kaplin ◽  
Keyword(s):  
Linear Programming ◽  
Natural Gas ◽  
System Analysis ◽  
Statistical Information ◽  
Point Of View ◽  
Annual Production ◽  
Production Volume ◽  
Gas Industry ◽  
Unit Costs ◽  
Gas Fields

The subject of the research is the directions of development of the gas industry of Ukraine. The purpose of the study is to develop a mathematical model for calculating the program of development of the country's gas industry to solve the problem of choosing options for commissioning of new natural gas fields and intensification of existing fields. The methods of system analysis, linear programming, comparative analysis and expert evaluations are used in the work. A model for calculating a program for the development of the gas industry is proposed to solve the problem of choosing options for commissioning new natural gas fields and intensifying existing fields. The model is based on representing development options with achievable volumes of annual production increase in integer linear programming problems. New and operating natural gas fields can be presented in the model with statistical information on their distribution by reserves and depths with the corresponding development costs, as well as the dependences of the predicted annual production volume on the measures taken and technologies to improve the efficiency of gas extraction. Model calculations provide a two-stage method for determining the options for the development of the industry. At the first stage, a variety of options are optimized according to the criterion of unit costs per 1,000 m3 of gas produced during the entire program period. The second stage ensures the optimal distribution of the selected options between the periods of the program using the criterion of the production volume and with the limited costs of the previous period for the preparation, prospecting and exploration of deposits. The results of calculating feasible options for the development of the gas production industry based on statistical information on volume, mining and geological and cost indicators of the development of resources and natural gas reserves are presented. The calculations investigated the options for the uniform distribution of investment, as well as their growth from the first stage to the next. For both cases, the priority is set for the selection of fields with large reserves at the same depths. Such a procedure for putting fields into operation is expedient, both from the point of view of the criterion for the optimal functioning of the industry over a long period of time – the unit costs of production, and on the basis of considerations of achieving the highest volumes of extraction in the shortest possible time. In the case of small capital investments in the development of the industry, the model selects small-volume reserves of deposits according to the structure of Ukrainian reserves.

Educational work at the university as an element of the quality management system

2021 ◽  
pp. 3-12
Author(s):  
Ya.A. Vavilin ◽  
◽  
V.A. Soldatov ◽  
I.G. Mankevich ◽  
N.YU. Chistokletov ◽  
...  
Keyword(s):  
System Analysis ◽  
Quality Management System ◽  
Educational Process ◽  
Point Of View ◽  
Educational Work ◽  
Intercultural Interaction ◽  
The Russian Federation ◽  
The University ◽  
Formation Of Groups

The article deals with an important component of the learning process - educational work, in terms of the formation of a moral and patriotic portrait of a graduate, as well as the formation of groups of universal competencies related to intercultural interaction and civic position. The task of improving upbringing work at the university received particular urgency in connection with the implementation of the strategy for the development of education in the Russian Federation. The authors attempt to evaluate and analyze educational work from the point of view of the process approach and system analysis. A hierarchical model of educational work is proposed and the components of the process are highlighted, and a system of indicators for assessing the quality of educational work is developed. The proposed approach can be applied in the formation and evaluation of the strategy for the development of the educational process in higher education and the development of work programs for educational work, as an obligatory element of the main professional educational program.

Optical System Analysis Based on Prolate Spheroidal Wave Functions

2016 ◽  
Vol 43 (6) ◽  
pp. 0609005
Author(s):  
张蓓 Zhang Bei ◽  
付东翔 Fu Dongxiang ◽  
陈家璧 Chen Jiabi ◽  
项华中 Xiang Huazhong
Keyword(s):  
Optical System ◽  
System Analysis ◽  
Wave Functions ◽  
Prolate Spheroidal ◽  
Spheroidal Wave Functions ◽  
Prolate Spheroidal Wave Functions

World economy and international economic relations

2020 ◽  
Author(s):  
Ol'ga Baburina
Keyword(s):  
International Economic ◽  
World Economy ◽  
System Analysis ◽  
Point Of View ◽  
Modern World ◽  
Federal State ◽  
Economic Relations ◽  
International Economic Relations ◽  
The World ◽  
State Educational

The main provisions of the theory of the world economy and international economic relations are presented. The strengthening of the integrity of the world economy is justified. The most important indicators from the point of view of system analysis are given. The concepts, concepts and dynamics of development of key forms of international economic relations are revealed. The construction of the balance of payments of various countries is analyzed. In the proposed publication, to control the level of mastering the discipline on each topic, tests, topics of reports and abstracts are given, practice-oriented tasks are developed based on objective statistical data of recent years. Meets the requirements of the Federal state educational standards of higher education of the latest generation. For bachelors studying in the field of Economics, it can be useful for teachers who lead the disciplines "World economy", "World economy and international economic relations", as well as for anyone interested in the processes taking place in the modern world economic system and the role of Russia in it.

scholarly journals ARTIFICIAL INTELLIGENCE VERSUS PUBLIC ADMINISTRATION: LIMITATIONS OF APPLICATION

2019 ◽  
Vol 7 (3) ◽  
pp. 516-520
Author(s):  
Petr M. Morkhat ◽  
Igor V. Ponkin ◽  
Marina V. Markhgeym ◽  
Vladimir K. Botnev ◽  
Aidyn O. Turganbayev
Keyword(s):  
Artificial Intelligence ◽  
Public Administration ◽  
Research Methods ◽  
System Analysis ◽  
The State ◽  
Point Of View ◽  
Existing Problems ◽  
The Future ◽  
Long Time ◽  
Systemic Problems

Purpose of Study: The present study was designed to study possibilities, conditions, grounds and limitations regarding the use of technologies and units of artificial intelligence in public administration. Determinants of the need to use such technologies in public administration were also considered. In this study, directions of realizable engagement which is already implemented, as well as directions of the possible use of artificial intelligence units in the future for public administration were investigated to ensure the functioning of system of state executive bodies. Methodology: The present research carried out based on the application of research methods such as system analysis, synthesis, and classification. Using these research methods, the concepts of describing conditions, possibilities, modes and functional-target load of using technologies and units of artificial intelligence in public administration, as well as limitations of its application in public administration were developed. Results: It was found that the use of artificial intelligence by the state for performing its various own tasks is highly relevant as it might lead to finding many positive approbations. However, despite the fact that technologies and artificial intelligence units have been developed for a relatively long time, and some of them are already widely used, it is still impossible to talk about the integrated, fully tested and properly regulated implementation of this kind of technology and units for management, therefore, it is suggested to further investigate on this issue from a theoretical (prognostic) point of view, taking into account potential directions and possibilities regarding    the use of such technology and units. Implications/Applications: The use of technologies and units of artificial intelligence does not necessarily take into account as a panacea for solving the problems and may not lead to solving some systemic problems in public administration, but, on the contrary, may even aggravate some existing problems in public administration and contribute to the emergence of new problems and risks.

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