scholarly journals APPLICATION OF SYSTEM APPROACH IN METHODOLOGY OF SOLVING ENGINEERING PROBLEMS

2021 ◽  
pp. 23
Author(s):  
A. PASICHNYK ◽  
V. PASICHNYK ◽  
Y. KUSHCHENKO
Keyword(s):  
Mathematical Model ◽  
Initial Data ◽  
Industrial Development ◽  
System Analysis ◽  
Mathematical Formulation ◽  
Engineering Problem ◽  
The State ◽  
Problem Statement ◽  
Functional Connections ◽  
Engineering Problems

The purpose of this article is to develop and improve systemic methods for constructing solutions to engineering problems. The article provides a methodological approach to solving complex engineering problems based on the application of the system analysis method. The need for a preliminary assessment of the completeness of the initial data for the construction of a mathematical model of the problem is shown. At the stage of the problem statement, the problem statement is concretized in order to establish the research goal. As a result of a systematic analysis of the functional characteristics of the object under study, the main parameters and their relationship are determined, and the values of these parameters characterizing the initial state of the object under study are established. It is necessary to clarify the essence of the problem and formulate it so that the solution found is effective and can be obtained using existing means and in real terms. Based on the data of the analysis, the goal of solving the engineering problem is determined and the corresponding formulation is formulated in the following form: initial data; parameters; quantities to be determined. The functional connections between the main parameters of the object and the factors acting on it are established, they are described by mathematical relations and equations included in the mathematical model, taking into account the determining influence of the parameters of the problem on the state of the object. Thus, we obtain a mathematical formulation of the problem, the construction of the solution of which allows us to establish the parametric dependence of the state of the object for various values of the parameters. The reliability of the results obtained and the suitability of the chosen method, the decision should be confirmed by their testing and careful analysis. On the basis of the formulated approach, assessments have been carried out and the corresponding technological operations have been proposed for solving the engineering problem of removing the tanker «Delfi» from the aground in the water area of the Odessa coast of the Black Sea. The expediency of further improvement of the technology of application of the proposed approach for design tasks and industrial development of software and hardware complexes has been determined.

scholarly journals Development of methodological foundations for the development and implementation of the state policy of reindustrialization of regional systems

2021 ◽  
Vol 101 (1) ◽  
pp. 16-25
Author(s):  
Ye.B. Aimagambetov ◽  
Keyword(s):  
State Policy ◽  
Industrial Development ◽  
System Analysis ◽  
State Regulation ◽  
The State ◽  
Economic Systems ◽  
Regional Systems ◽  
Depth Analysis ◽  
Scientific Technical ◽  
Labor Resources

Object: The purpose of the study is to substantiate methodological issues of state policy and modeling of the dynamic development of regional systems as an inseparable triad "ecology-society-economy" in the conditions of various stages of reindustrialization. Methods: methods of system analysis and economic synthesis of reindustrialization factors and assessment of their impact on the development of ecological and socio-economic systems are used, which will increase the effectiveness of state policy and management decisions in the field of scientific, technical, industrial and environmental policies. Results: The developed methodology for assessing the state and dynamics of the development of ecological and socio-economic systems is a tool for further, more in-depth analysis of the development problems of the countries that are part of the EAEU zone, in solving which it is impossible to do without the use of methods of state regulation of the economy. It is established that socio-economic policy and the organizational, economic, and managerial mechanisms by which it is implemented have a significant impact on development. In this regard, it is important not only to determine the degree of efficiency of the use of available resources, but also to what extent and how to make up for their lack. The presence or absence of effective policies is reflected in the reduction or growth of barriers to development. Conclusions: Recommendations on the choice of reindustrialization options are as follows:  systematic consideration of three interrelated elements: realization of industrial potential, effective use of labor resources, ensuring normal working conditions and effective employment of the population; advanced development of infrastructure;  consideration of environmental effects directly related to the process of re-industrialization;  a retrospective study of the industrial development of the territory is the most important source of information for the development of directions for the allocation of productive forces;  decision-making is based on taking into account social, economic, natural and technological criteria indicators, which provide for compliance with the principle of coordinating the interests of the subjects of reindustrialization, taking into account social priorities.

scholarly journals SIMULATION OF CONTROL SYSTEM OF THE CHEMICAL-TECHNOLOGICAL PROCESSES

2021 ◽  
Author(s):  
Gulnara Abitova
Keyword(s):  
Mathematical Model ◽  
Chemical Engineering ◽  
System Analysis ◽  
Mathematical Formulation ◽  
Control Object ◽  
Formulation Development ◽  
Mathematical Methods ◽  
Unknown Parameters ◽  
Initial State ◽  
Sulphide Ores

In this work is consider study and analysis of dynamic system for simulation of the technological process under uncertainty and complexity. To study and simulate a complicated technology process we carry out for consideration the technology of the process of roasting in fluidized bed furnaces of polymetallic sulphide ores. The choice is justified by the fact that, operation line producing of polymetallic sulphide ores represents a complex process, is characterized by a big number of transient processes, presence of process variables and deviations from technical regimes. To study process characteristics of any system functioning by means of mathematical methods the process should be formalized. This means, that adequate mathematical model needs to be developed. The choice of mathematical model depends a lot upon the features of the object and its controllability as well as of technological scheme and complexity of processes. Chemical engineering processes are complicated physical and chemical systems. Substance flows, which are part of these systems, are, as a rule, multicomponent. Therefore, for the purpose of study and qualitative control over chemical-engineering processes it is essential to apply the method of mathematic simulation, based on system analysis strategy, analysis of its structure, mathematical formulation development and evaluation of unknown parameters. Controllability means that such system attribute as having control actions, which make it possible to transfer the system from a pre-set initial state to the required condition during finite quantum of time. Therefore, the developed mathematical model of the process or control object should be controllable and stability.

scholarly journals MATHEMATICAL SIMULATION AND STUDY OF CONTROL STABILITY OF THE CHEMICAL-ENGINEERING PROCESSES IN INDUSTRY

2020 ◽  
pp. 4-13
Author(s):  
G Abitova
Keyword(s):  
Mathematical Model ◽  
Chemical Engineering ◽  
System Analysis ◽  
Mathematical Formulation ◽  
Control Object ◽  
Formulation Development ◽  
Mathematical Methods ◽  
Unknown Parameters ◽  
Initial State ◽  
Sulphide Ores

In this work is consider study and analysis of dynamic system for simulation of the technological process under uncertainty and complexity. To study and simulate a complicated technology process we carry out for consideration the technology of the process of roasting in fluidized bed furnaces of polymetallic sulphide ores. The choice is justified by the fact that, operation line producing of polymetallic sulphide ores represents a complex process, is characterized by a big number of transient processes, presence of process variables and deviations from technical regimes. To study process characteristics of any system functioning by means of mathematical methods the process should be formalized. This means, that adequate mathematical model needs to be developed. The choice of mathematical model depends a lot upon the features of the object and its controllability as well as of technological scheme and complexity of processes. Chemical engineering processes are complicated physical and chemical systems. Substance flows, which are part of these systems, are, as a rule, multicomponent. Therefore, for the purpose of study and qualitative control over chemical-engineering processes it is essential to apply the method of mathematic simulation, based on system analysis strategy, analysis of its structure, mathematical formulation development and evaluation of unknown parameters. Controllability means that such system attribute as having control actions, which make it possible to transfer the system from a pre-set initial state to the required condition during finite quantum of time. Therefore, the developed mathematical model of the process or control object should be controllable and stability.

The Yukawa Potential Function and Reciprocal Univalent Function

2013 ◽  
Vol 3 (2) ◽  
pp. 197-202
Author(s):  
Amir Pishkoo ◽  
Maslina Darus
Keyword(s):  
Mathematical Model ◽  
Unit Disk ◽  
Potential Function ◽  
Univalent Function ◽  
Open Problem ◽  
Yukawa Potential ◽  
Reciprocal Theorem ◽  
Problem Statement ◽  
Fundamental Forces

This paper presents a mathematical model that provides analytic connection between four fundamental forces (interactions), by using modified reciprocal theorem,derived in the paper, as a convenient template. The essential premise of this work is to demonstrate that if we obtain with a form of the Yukawa potential function [as a meromorphic univalent function], we may eventually obtain the Coloumb Potential as a univalent function outside of the unit disk. Finally, we introduce the new problem statement about assigning Meijer's G-functions to Yukawa and Coloumb potentials as an open problem.

A mathematical model and an algorithm for sampling sets of components on the Assembly enterprises of space technology

2018 ◽  
Vol 15 (1) ◽  
pp. 39-55
Author(s):  
V. B. Rudakov ◽  
V. M. Makarov ◽  
M. I. Makarov
Keyword(s):  
Mathematical Model ◽  
Mathematical Models ◽  
Space Technology ◽  
Economic Costs ◽  
Problem Statement ◽  
Optimal Plan ◽  
Product Mix ◽  
Technical Parameters ◽  
Complex Products ◽  
Assembly Plants

The article considers the problem of determining the rational plans of the input sampling reliability and technical parameters of components of space technology, the totality of which is supplied to the Assembly plants for the manufacture of complex products of space technology. Problem statement and mathematical model based on the minimization of the economic costs of control and losses related to the risks of taking wrong decisions, are given in the article. The properties of the mathematical models are investigated, the algorithm for its optimization is developed. The result is an optimal plan for the sampling of sets of components, which includes: an optimal product mix subject to mandatory control of the aggregate and optimum risks of first and second kind, when acceptance number of statistical plan is zero. The latter circumstance is due to the high requirements of reliability and technical parameters of products of space technology.

MIDC Role in Infrastructural Development in Navi Mumbai

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Prashant H. Bhagat
Keyword(s):  
Industrial Development ◽  
Industrial Sector ◽  
Vital Role ◽  
The State ◽  
Infrastructure Development ◽  
Industrial Areas ◽  
Industrial Estates ◽  
Development Corporation ◽  
Set Up ◽  
Industrial Development Corporation

The BID (Board of Industrial Development) framed the legislation and it was introduced before the state legislation and passed in the form of Maharashtra Industrial Act which gave birth to Maharashtra Industrial Development Corporation (MIDC), as a separate corporation on August 1, 1962. The BID was the first personnel strength of MIDC. A small ceremony at Wagle Estate Thane, under the Chairmanship of the Chief Minister Shri Y.B. Chavan, marked the birth of MIDC on August 1, 1962. The Board of Industrial Development during its existence between October 1, 1960 and August 1, 1962 has done enough spade work to identify the locations for setting up industrial areas in different parts of the state. Thus, right in the first year of establishment MIDC came up with 14 industrial areas, to initiate action for infrastructure and help entrepreneurs set up the industrial units in those areas. Maharashtra Industrial Development Corporation is the nodal industrial infrastructure development agency of the Maharashtra Government with the basic objective of setting up industrial areas with a provision of industrial infrastructure all over the state for planned and systematic industrial development. MIDC is an innovative, professionally managed, and user friendly organization that provides the world industrial infrastructure. MIDC has played a vital role in the development of industrial infrastructure in the state of Maharashtra. As the state steps into the next millennium, MIDC lives up to its motto Udyamat Sakal Samruddhi i.e., prosperity to all through industrialization. Indeed, in the endeavor of the state to retain its prime position in the industrial sector, MIDC has played a pivotal role in the last 35 years. MIDC has developed 268 industrial estates across the state which spread over 52653 hectares of land. The growth of the Corporation, achieved in the various fields, during the last three years, could be gauged from the fact that the area currently in possession of MIDC has doubled from 25,000 hectares in 1995.

scholarly journals Modelling the impact of delaying vaccination against SARS-CoV-2 assuming unlimited vaccine supply

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Marcos Amaku ◽  
Dimas Tadeu Covas ◽  
Francisco Antonio Bezerra Coutinho ◽  
Raymundo Soares Azevedo ◽  
Eduardo Massad
Keyword(s):  
Mathematical Model ◽  
Vaccination Campaign ◽  
Vaccination Rate ◽  
Sao Paulo ◽  
The State ◽  
São Paulo ◽  
Health Authorities ◽  
The World ◽  
The Moment ◽  
The Impact

Abstract Background At the moment we have more than 177 million cases and 3.8 million deaths (as of June 2021) around the world and vaccination represents the only hope to control the pandemic. Imperfections in planning vaccine acquisition and difficulties in implementing distribution among the population, however, have hampered the control of the virus so far. Methods We propose a new mathematical model to estimate the impact of vaccination delay against the 2019 coronavirus disease (COVID-19) on the number of cases and deaths due to the disease in Brazil. We apply the model to Brazil as a whole and to the State of Sao Paulo, the most affected by COVID-19 in Brazil. We simulated the model for the populations of the State of Sao Paulo and Brazil as a whole, varying the scenarios related to vaccine efficacy and compliance from the populations. Results The model projects that, in the absence of vaccination, almost 170 thousand deaths and more than 350 thousand deaths will occur by the end of 2021 for Sao Paulo and Brazil, respectively. If in contrast, Sao Paulo and Brazil had enough vaccine supply and so started a vaccination campaign in January with the maximum vaccination rate, compliance and efficacy, they could have averted more than 112 thousand deaths and 127 thousand deaths, respectively. In addition, for each month of delay the number of deaths increases monotonically in a logarithmic fashion, for both the State of Sao Paulo and Brazil as a whole. Conclusions Our model shows that the current delay in the vaccination schedules that is observed in many countries has serious consequences in terms of mortality by the disease and should serve as an alert to health authorities to speed the process up such that the highest number of people to be immunized is reached in the shortest period of time.

Model-Eliciting Activities: A Research-Based Method for Inquiry Learning and Professional Development in the Engineering Classroom

2008 ◽  
Author(s):  
Tamara J. Moore
Keyword(s):  
Complex Systems ◽  
Student Development ◽  
Engineering Problem ◽  
First Year ◽  
Foundation Engineering ◽  
Underrepresented Populations ◽  
Model Eliciting Activities ◽  
Engineering Problems ◽  
The Given ◽  
Mathematics And Science

Attracting students to engineering is a challenge. In addition, ABET requires that engineering graduates be able to work on multi-disciplinary teams and apply mathematics and science when solving engineering problems. One manner of integrating teamwork and engineering contexts in a first-year foundation engineering course is through the use of Model-Eliciting Activities (MEAs) — realistic, client-driven problems based on the models and modeling theoretical framework. A Model-Eliciting Activity (MEA) is a real-world client-driven problem. The solution of an MEA requires the use of one or more mathematical or engineering concepts that are unspecified by the problem — students must make new sense of their existing knowledge and understandings to formulate a generalizable mathematical model that can be used by the client to solve the given and similar problems. An MEA creates an environment in which skills beyond mathematical abilities are valued because the focus is not on the use of prescribed equations and algorithms but on the use of a broader spectrum of skills required for effective engineering problem-solving. Carefully constructed MEAs can begin to prepare students to communicate and work effectively in teams; to adopt and adapt conceptual tools; to construct, describe, and explain complex systems; and to cope with complex systems. MEAs provide a learning environment that is tailored to a more diverse population than typical engineering course experiences as they allow students with different backgrounds and values to emerge as talented, and that adapting these types of activities to engineering courses has the potential to go beyond “filling the gaps” to “opening doors” to women and underrepresented populations in engineering. Further, MEAs provide evidence of student development in regards to ABET standards. Through NSF-funded grants, multiple MEAs have been developed and implemented with a MSE-flavored nanotechnology theme. This paper will focus on the content, implementation, and student results of one of these MEAs.

Tax incentives for industrial production

2021 ◽  
Author(s):  
Roman Gereev ◽  
Milyausha Pinskaya
Keyword(s):  
Risk Management ◽  
Industrial Production ◽  
Financial Support ◽  
Industrial Development ◽  
Tax Incentives ◽  
The State ◽  
Tax Administration ◽  
Wide Range ◽  
Improve State ◽  
Theoretical Foundations

The monograph is devoted to the analysis of tax incentives, the use of which will help to achieve the economic goals of the state in the field of industrial support. The theoretical foundations of tax incentives for industrial development are considered, the effectiveness of tax incentives is evaluated, and measures to improve state financial support for industrial production are proposed. It is intended for a wide range of readers: specialists involved in tax risk management, economists in the field of industrial production, consultants in the field of taxation and tax administration, students and teachers of economic universities.

History of foundry production. Why does the slash bell sound

2020 ◽  
pp. 57-68
Author(s):  
V. A. Sidorov ◽  
E. V. Osowska
Keyword(s):  
Mathematical Model ◽  
Initial Data ◽  
Complementary Methods ◽  
History Of ◽  
High Level

The article is devoted to the history of foundry production-casting of bells. This art was passed down from generation to generation, there were successful variants, but there were also defective bells. The authors analyzed in detail the different production of slotted bells. Bells are unique single products. They confirm the high level of skill of the master. The loss of sound properties of slotted bells depends on the ratio of the main dimensions, the size of the slits and their locations. The use of complementary methods for measuring mechanical and visualizing sound vibrations allows us to obtain initial data for the development of a mathematical model of sound vibrations of a bell. A continuation of the material about the art of manufacturing and the secrets of production will be published in the next issue of the magazine.

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