scholarly journals ECONOMIC AND STATISTICAL ANALYSIS OF FARMERS' ACTIVITY

2018 ◽  
pp. 287-294
Author(s):  
Natalia Ruchynska
Keyword(s):  
Mathematical Modeling ◽  
Statistical Analysis ◽  
System Analysis ◽  
Production Costs ◽  
Mathematical Methods ◽  
Index Method ◽  
Managerial Decisions ◽  
Scientific Approach ◽  
Factor Estimation

Introduction. Improvement of the process of making managerial decisions and, accordingly, improvement of the quality of the decisions made is achieved through the use of scientific approach, models and methods of decision-making. Methods of economic and mathematical modeling allow to solve a number of issues related to the development of alternative areas of activity, optimization of the structure, production costs and sales of farm products. Therefore, it is expedient to use them for making managerial decisions at farms. Purpose. The article aims to carry out the economic and statistical analysis of the activity of the farm and the feasibility of applying economic and mathematical methods in the process of managing farms in modern conditions of farming. The application of economic and mathematical methods and models for making managerial decisions is considered on the example of the activity of the farm "Horizon" of the Veselinovsky district of the Mykolaiv region, which specializes in the cultivation of grain crops (except rice), legumes and seeds of oilseeds. Methods. In the course of the study, methods of system analysis, index method of factor estimation, and economic and mathematical modeling have been used. Results. On the basis of economic indicators of the activity of the farm "Horizon" during the reporting period, the economic and mathematical model of optimization of sown areas has been created. It contributes to the correction of managerial decisions for improving the efficiency of economic activity.

scholarly journals Mathematical modeling of processes of interaction of functional and which contaminate microorganisms in biotechnology system

2019 ◽  
Vol 81 (1) ◽  
pp. 252-255
Author(s):  
A. V. Skrypnikov ◽  
E. V. Belokurova ◽  
N. V. Sotnikov
Keyword(s):  
Mathematical Modeling ◽  
System Analysis ◽  
System Model ◽  
Microbial Populations ◽  
Simultaneous Occurrence ◽  
Technological Parameters ◽  
Microbiological Processes ◽  
Microbiological Process ◽  
Common Resource

Mathematical modeling of processes occurring in the biotechnological system, including those describing the interaction of functional microorganisms with contaminating microflora, is currently a promising scientific direction. The article discusses the issues of system analysis of the processes occurring in the biotechnological system during fermentation. By "microbiological system" is meant a microbiological process consisting of two subsystems or populations of microorganisms. During a given technological process, these populations interact with each other by using a common resource. Systems analysis and mathematical modeling of microbiological processes is a complex task. It is necessary to take into account a lot of factors, such as the simultaneous occurrence of several non-stationary processes; many state parameters, including analysis of the links between them; change in real time of technological parameters, in particular, the main resource, consideration of various properties of microbial populations affecting the behavior of microbiological systems (mortality, fertility, the existence of extraneous microflora, etc.), and other factors that have a direct impact on the quality of the finished product. In turn, a quantitative analysis of these interactions will lead to the development of scientifically based methods and approaches that minimize the effect of contamination. The analysis was carried out and a system model was constructed reflecting the entire spectrum of interactions between useful and extraneous populations of microorganisms in the production of bakery products. The presented system model allows to continue the study of the questions posed in the work, by further studying its components.

Physical and mathematical modeling of building systems

2021 ◽  
Author(s):  
Vladimir Chemodurov ◽  
Ella Litvinova
Keyword(s):  
Mathematical Modeling ◽  
Field Experiments ◽  
System Analysis ◽  
System Optimization ◽  
Educational Institutions ◽  
Federal State ◽  
Mathematical Methods ◽  
Higher Educational Institutions ◽  
Physical And Mathematical Modeling ◽  
Higher Educational

Physical and mathematical modeling is widely used in scientific research. This is due to the fact that field experiments on real construction sites are often impossible to organize for various reasons. The material included in the textbook is a summary of the authors ' experience in the field of system analysis. In the first section, the regularities of physical modeling of the functioning of objects based on the similarity and dimension theorems are considered. The second section presents modern models and methods for choosing optimal solutions: linear, nonlinear, stochastic, and statistical. The third section deals with experimental methods of system optimization based on the theory of experimental planning. Meets the requirements of the federal state educational standards of higher education of the latest generation. For students of higher educational institutions studying in the direction of training 08.04.01 "Construction", and graduate students of higher educational institutions. It will be useful for specialists in the field of mathematical methods for the study of complex systems and their applications.

scholarly journals THE ANALYSIS OF CLIENTS IN THE CONTROL SYSTEM OF RECEIVABLES

2017 ◽  
Vol 2017 (3) ◽  
pp. 49-54
Author(s):  
Екатерина Коробейникова ◽  
Ekaterina Korobeinikova
Keyword(s):  
Control System ◽  
System Analysis ◽  
Group Analysis ◽  
Economic Aspects ◽  
Structural Group ◽  
Accounts Receivable ◽  
Customer Base ◽  
Managerial Decisions ◽  
Structural Group Analysis

<p><span>The article presents a system of accounts of receivable management, including the methodology for its analysis in terms of customer base. The study was conducted with the purpose of optimization of client work within the accounts receivable management, improving the speed and quality of managerial decisions. Deferred payment in the sale of products (works, services) is considered as the basis of trustful and lasting relationships with clients, as it determines the attractiveness of the transaction, contributes to the preservation and expansion of client base. In the management of accounts legal, organizational and economic aspects can be distinguished. System analysis of receivables includes such areas as the analysis of the dynamics and structure of receivables, speed and time of its circulation, the analysis in the context of the debtors ‘ businesses and the analysis of the customer base, performance assessment of the sales divisions, the level of risk of non-payment, delinquency of payment. The developed method of structural-group analysis of customers-debtors, built on a modification of the RFM analysis. The method of analysis of the clients-debtors allows them to rank in status, according to which transaction terms have to be adjusted.</span></p>

scholarly journals Formation and Development of the Project Team

2020 ◽  
Vol 6 (3) ◽  
pp. 100-106
Author(s):  
O.V. Rogach ◽  
◽  
A.M. Kuznetsova ◽  
Keyword(s):  
Economic Activity ◽  
Complex Analysis ◽  
System Analysis ◽  
Project Manager ◽  
Project Team ◽  
Staff Turnover ◽  
Mathematical Methods ◽  
Analysis System ◽  
Project Personnel

the article raises questions about the formation and development of the project team. The empirical base of the study was chosen by the company “BIZNESCONSUL” LLC. The paper uses such research methods as: socio-economic analysis, complex analysis of economic activity, economic and mathematical methods, logical analysis, system analysis. Based on the research, a number of conclusions are made: the need to use tools for forming a project team (the responsibility matrix) is highlighted, which will reduce the time of recruitment and hiring of staff; a focused approach to the development of a project personnel motivation system is required, which will reduce staff turnover in the company; it is necessary to take into account the personal and professional qualities of the project Manager, which will allow him to consolidate project roles and improve the quality of project personnel management.

scholarly journals Quality management of mined rock based on the use of mathematical modeling technologies

2020 ◽  
Vol 59 (3) ◽  
pp. 163-175
Author(s):  
Zinaida Mikhailovna NAZAROVA ◽  
◽  
Yuriy Vasil’evich ZABAIKIN ◽  
Yuliya Anatol’evna LEONIDOVA ◽  
Mikhail Arkad’evich YAKUNIN ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Quality Management ◽  
New Technologies ◽  
Quality Management System ◽  
Raw Materials ◽  
Production Capacity ◽  
Production Costs ◽  
Mining Equipment ◽  
Mining Operations

Relevance. Fracturing of the array is one of the main factors in the formation of quality blocks of decorative stone. Systems of natural cracks form a separate rock and determine the shape and size of structural blocks, which determines the possible output of conditioned block products from the array, the choice of the method of preparing the rock for excavation, the location and direction of movement of the mining front in accordance with the nature, intensity and elements of the occurrence of cracks. To control the quality of decorative stone blocks, modeling and forecasting optimal parameters, it is necessary to investigate the possibility of identifying fractures and then determining their geometric parameters using modern digital equipment. Purpose of research is to analyze the quality management of the extracted rock based on the use of mathematical modeling technologies. The methodology of the work consists in using methods of mathematical modeling, as well as statistical data processing. Results. The practical application of the results is to apply the developed methods in order to optimize the quality management system of the extracted rock and increase its efficiency. As a result of practical research, a rational ledge height of 5.8 m has been established for the conditions of the granodiorite Deposit, which allows to ensure the necessary production capacity of the quarry, high productivity of mining equipment, safety of mining operations, minimal economic costs for mining operations, low production costs and minimal losses of block raw materials. Conclusions. The analysis of the complex of mining operations of mining enterprises allows us to make a conclusion about the need to introduce new technologies into production that would ensure the automation of work, increase the reliability of measurement results and calculations. At the same time, automation should be based on the use of remote methods for assessing the quality of decorative stone, new electronic devices and appropriate software.

scholarly journals AUTOMATION OF THE FINANCIAL ANALYSIS DECISION-MAKING PROCESS ON THE INTERNET

2020 ◽  
pp. 52-65
Author(s):  
OLGA RUZAKOVA
Keyword(s):  
Mathematical Modeling ◽  
Decision Making ◽  
Financial Management ◽  
System Analysis ◽  
Evaluation Process ◽  
Decision Making Process ◽  
Mathematical Methods ◽  
Internet Technologies ◽  
Financial Condition ◽  
Independent Expert

The article proposes to use modern Internet technologies for improving the accuracy, speed and validity of financial decisions. They allow us to create a special web page where investors can conduct an assessment of potential investment objects financial status online through an appropriate decision support system. Research is based on the scientific works of domestic and foreign scientists using on the assessing the financial condition of the enterprise problems, the preparation of reporting documentation of specific enterprises, as well as taking into account the results of personal research. A detailed analysis of theoretical, scientific and practical publications, regulatory documents for assessing the financial condition of the enterprise, as well as relevant works on economic and mathematical modeling is carried out. He made it possible to identify the theoretical and applied problems in the field of study and to propose ways to solve them. The expediency of using economic and mathematical methods for estimating the financial state of the enterprise is substantiated. Formulated scientific provisions, conclusions and recommendations are based on the study of the subject area, the application of methods of economic and mathematical modeling, system analysis and methods of expert assessments. Such a system will make it possible to speed up the decision-making process, to carry out an objective and independent expert evaluation, taking into account the specifics of foreign financial management, to simplify the evaluation process through Internet technologies, and to significantly reduce the cost of such service. It is proposed to apply the theory of fuzzy sets in the construction of DSS, which allows to take into account the different quality parameters of the object being evaluated, to stratify the evaluation process and to analyze a powerful set of evaluation parameters. As a result, it improves the quality of assessing the financial condition of the enterprise using the methodology and tools of mathematical modeling.

scholarly journals Organization of planning in transport construction

2020 ◽  
Vol 157 ◽  
pp. 04006
Author(s):  
Ruben Kazaryan ◽  
Peraskovya Andreeva ◽  
Natalya Galaeva
Keyword(s):  
Mathematical Modeling ◽  
System Analysis ◽  
Programming Model ◽  
Verbal Description ◽  
Mathematical Methods ◽  
Visual Modeling ◽  
The Earth ◽  
Modeling Systems ◽  
Dynamic Programming Model ◽  
Construction Model

Purpose. Development of methods and models of economic efficiency of the integrated use of various modes of transport in the interests of ensuring national security of the state. Methods. System analysis, logical-mathematical modeling, systems theory, economic-visual modeling, research methods of operations, economic and mathematical methods. Results. The paper discusses the need for the application of economic and mathematical models in the design of transport construction (model of “moving the earth masses”, linear programming model, design of the “red line” on the longitudinal profile, dynamic programming model). Conclusion. The difficult stage of the transition of economic and mathematical analysis from the verbal description of the system process to the elemental base of the mathematical apparatus. Most research models of operations are designed for single criteria. Economic and mathematical modeling allows the effect of “private optimization”.

scholarly journals MATHEMATICAL METHODS OF LABOR MARKET MODELING AND FORECASTING

2021 ◽  
Author(s):  
Maryna Naumova ◽  
Yulia Kudrych
Keyword(s):  
Mathematical Modeling ◽  
Labor Market ◽  
Statistical Methods ◽  
Market Research ◽  
System Analysis ◽  
Correlation Coefficients ◽  
Comparison Method ◽  
Sociological Research ◽  
Mathematical Methods ◽  
Modeling And Forecasting

The labor market is a dynamic system that requires constant monitoring and analysis. To determine the vector of activity of subjects of the labor market and information about market conditions, the need for modeling and forecasting key indicators of the labor market increases. No less important is the methodological collection, analysis and comparison of information related to the functioning of the labor market, forecasting and planning of market activities for further decision-making in management. In modern publications on economics, devoted to the analysis of the labor market, not enough attention is paid to studies that generally cover all methods of economic and mathematical modeling and management of the labor market. Most often, there are scientific works that are related only to control in a specific plane, where one or several methods are applied simultaneously. The publication highlights the main areas of labor market research and methods of economic and mathematical modeling, which are advisable to use in describing the state and dynamics of the sphere of labor relations. The main principles of economic and mathematical modeling in assessing the development of the labor market are highlighted: the consistency of forecasting, the correspondence of forecasting to modern scientific research, the adequacy of forecasts to real processes, the scenario nature of forecasts. The characteristics of economic, mathematical and statistical methods and models that can be used to manage the labor market are given. The paper presents a brief description and the possibility of applying in labor market research such methods as: the system analysis method, aggregate indexing, the indicative method, the comparison method, the assessment of external and internal factors, statistical methods based on the calculation of the standard deviation, variance, correlation coefficients and variations, statistical multivariate analysis, balance models, trend and time series analysis, correlation and regression analysis, simulation modeling, neural networks, sociological research, the method of expert estimates and others. The main software packages for the automation of the above methods are also systematized.

Managing the effectiveness of the regional health system

2020 ◽  
Vol 26 (3) ◽  
pp. 698-720
Author(s):  
E.V. Lobkova ◽  
A.S. Petrichenko
Keyword(s):  
Public Health ◽  
Health System ◽  
System Analysis ◽  
Health Indicators ◽  
Krasnoyarsk Krai ◽  
Regional Health ◽  
Luenberger Observer ◽  
Efficiency Assessment ◽  
Public Health Indicators

Subject. This article studies the mechanism of State health regulation and methods of management of efficiency of regional healthcare institutions. Objectives. The article aims to analyze the territorial health system in the context of the urgent need to optimize budget expenditures and address public health problems, as well as develop directions to improve the effectiveness of the regional health system of the Krasnoyarsk Krai. Methods. For the study, we used the method of index numbers and calculation of dynamics indicators using official statistics data. Results. We have developed and now present a system of indicators of regional health efficiency assessment, focused mainly on public health indicators and quality of medical services. We also offer our own version of the Luenberger observer modification adapted to the objectives of the regional health system analysis. Conclusions and Relevance. The article concludes that it is necessary to optimize the regional health system using the parameters of medical and social efficiency of the system. The proposed approach to assessing the effectiveness of regional health system can be used as a mechanism to develop recommendations for the management of the network of medical and prophylactic institutions of the region.

The Effects of Exercise Commitment Facilitated by Service Quality of Smartphone Exercise Applications on Continued Exercise Intention

2019 ◽  
Vol 118 (1) ◽  
pp. 14-19
Author(s):  
Boo-Gil Seok ◽  
Hyun-Suk Park
Keyword(s):  
College Students ◽  
Factor Analysis ◽  
Regression Analysis ◽  
Statistical Analysis ◽  
Correlation Analysis ◽  
Service Quality ◽  
Frequency Analysis ◽  
Primary Data ◽  
Exercise Intention

Background/Objectives: The purpose of this study is to examine the effects of exercise commitment facilitated by service quality of smartphone exercise Apps on continued exercise intention and provide primary data for developing and/or improving smartphone exercise Apps. Methods/Statistical analysis: A questionnaire survey was conducted amongst college students who have experiences in using exercise App(s) and regularly exercise. The questionnaire is composed of four parts asking about service quality, exercise commitment, continued exercise intention, which were measured with a 5-point Likert Scale, and demographics. Frequency analysis, factor analysis, correlation analysis, and regression analysis were carried out to analyze the obtained data with PASW 18.0.

Sign in / Sign up

Export Citation Format

Share Document