scholarly journals Mathematical modeling of hydraulic chains as cyber-physical objects

2020 ◽  
Vol 216 ◽  
pp. 01091
Author(s):  
Nikolay Novitsky
Keyword(s):  
Oil And Gas ◽  
Internal State ◽  
Methods Of Analysis ◽  
Analysis And Synthesis ◽  
Solution Methods ◽  
Physical Objects ◽  
Object Of Study ◽  
Integral Assessment ◽  
Hydraulic Circuits

The article attempts to substantiate a new direction of scientific research of pipeline systems (PLS) of the energy sector as cyber-physical objects. The relevance of this direction is determined by the practical formation of new properties of PLSs in the process of their renovation, intellectualization and digitalization, along with the absence of a general theory of classification of the goals pursued, emerging problems and solution methods. It is proposed to base such studies on the theory of hydraulic circuits, the subject of which is the general methods of mathematical modelling, calculation and optimization, applicable in principle for any PLS (heat, water, oil and gas supply, etc.). The concepts of controlled and cybernetic hydraulic circuit are introduced as a new object of study of this theory. The content of new classes of problems of research and modelling of hydraulic circuits as cybernetic is revealed. The characteristics of the available results in the field of methods of analysis and synthesis of PLSs as cyber-physical objects are given. Mathematical models and methods of analysis of the consequences of regime control in conditions of stochastic of external influences and uncertainty of the internal state are presented. A set of indicators for the integral assessment of the controllability of the PLS is proposed, reflecting the main aspects of management: admissibility, reliability and efficiency. Integral indices of PLS identifiability and methods of their calculation are proposed. The interrelation of these indicators, which can be used to develop methods of analysis, synthesis, norms and standards of controllability and identifiability, as the main cybernetic properties of PLS, is disclosed.

scholarly journals Informational Shortage as a Component of Media Title’s Attractiveness

2020 ◽  
pp. 157-169
Author(s):  
Iryna Marynenko
Keyword(s):  
Main Role ◽  
Lexical Semantic ◽  
Cross Media ◽  
Methods Of Analysis ◽  
Analysis And Synthesis ◽  
The Subject ◽  
The Given ◽  
Relative Pronouns

The relevance of the study is stipulated by the main role of the Internet publications titles in solving the issue whether it is necessary for user to read the text of publication. To interest the reader the authors use today the titles with omissions and ambiguity. The objective of the given research is to find out the mostly used language means, which are used by cross media journal-ists in order to create the titles with intrigue component. The following methods of analysis were used during the study: the method of entire selection from cross media texts; the descrip-tive method for defining the way of creating intrigue and finding out the reasons of such phe-nomenon; the methods of analysis and synthesis for systematization and classification of col-lected intrigue components. As a result of the study 11 quite widely used lexical semantic and grammatical means, which contribute the creation of titles with the elements of intrigue were found. Among the lexical semantic means the following ones can be mentioned: usage of hyponyms instead of genetic terms; usage of words with abstract meaning; semantic perceptional themes; emotional expres-sive attributes and polysemic lexemes. The morphological and syntactical means of creating the intrigue include pronouns and adverbs of general indicating semantics, interrogative and relative pronouns and adverbs, some kinds of one-member sentences, contextually incomplete sentenc-es, absence of adverbial modifier of time and place, which creates the time and space ambiguity, and the particle no before the name of the subject or object of the action. In the conclusion it is summarized that the above mentioned means increase the interest of the reader, encourage him/her to read the whole article, which is the main aim of the journalists’ work. In such a way the rates of website’s attendance and the popularity of author are also increased.

Improving the integrated reporting of electric-power industry companies

2020 ◽  
Vol 23 (8) ◽  
pp. 922-939
Author(s):  
N.V. Malinovskaya ◽  
M.D. Malinovskii
Keyword(s):  
Comparative Analysis ◽  
Electric Power ◽  
Electric Power Industry ◽  
Power Industry ◽  
Integrated Reporting ◽  
Strategic Objectives ◽  
Methods Of Analysis ◽  
Analysis And Synthesis ◽  
Guiding Principles

Subject. This article deals with the issues relating to improving integrated reporting in terms of dovetailing strategic objectives with capital changes. Objectives. The article aims to develop a system of indicators for disclosure of capital types in integrated reporting of electricity generating companies, as well as recommendations aimed at implementing the fundamental concepts and guiding principles of integrated reporting. Methods. For the study, we used the methods of analysis and synthesis, comparison, generalization, and abstraction. As a case study, we conduct a comparative analysis of the disclosure of six types of capital by the largest electricity generating companies, namely PAO Inter RAO, AO Rosenergoatom and PAO RusHydro. Results. The article formulates proposals for disclosure of capital information to address such a lack of accountability as a contradiction to the principle of coherence. It proposes a system of indicators (core and additional) for disclosure of six types of capital by electricity generating companies. Conclusions. A significant reporting problem is the lack of correlation between key strategic objectives and capital changes. The formulated recommendations for disclosure of capital information can help solve this problem, and increase the attractiveness of the integrated report for capital providers.

scholarly journals A comprehensive review of sucker rod pumps’ components, diagnostics, mathematical models, and common failures and mitigations

2021 ◽  
Author(s):  
Sherif Fakher ◽  
Abdelaziz Khlaifat ◽  
M. Enamul Hossain ◽  
Hashim Nameer
Keyword(s):  
Mathematical Models ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Gas Industry ◽  
Holistic View ◽  
Comprehensive Review ◽  
Artificial Lift ◽  
Sucker Rod ◽  
Sucker Rod Pump

AbstractIn many oil reservoirs worldwide, the downhole pressure does not have the ability to lift the produced fluids to the surface. In order to produce these fluids, pumps are used to artificially lift the fluids; this method is referred to as artificial lift. More than seventy percent of all currently producing oil wells are being produced by artificial lift methods. One of the most applied artificial lift methods is sucker rod pump. Sucker rod pumps are considered a well-established technology in the oil and gas industry and thus are easy to apply, very common worldwide, and low in capital and operational costs. Many advancements in technology have been applied to improve sucker rod pumps performance, applicability range, and diagnostics. With these advancements, it is important to be able to constantly provide an updated review and guide to the utilization of the sucker rod pumps. This research provides an updated comprehensive review of sucker rod pumps components, diagnostics methods, mathematical models, and common failures experienced in the field and how to prevent and mitigate these failures. Based on the review conducted, a new classification of all the methods that can fall under the sucker rod pump technology based on newly introduced sucker rod pump methods in the industry has been introduced. Several field cases studies from wells worldwide are also discussed in this research to highlight some of the main features of sucker rod pumps. Finally, the advantages and limitations of sucker rod pumps are mentioned based on the updated review. The findings of this study can help increase the understanding of the different sucker rod pumps and provide a holistic view of the beam rod pump and its properties and modeling.

EXPRESS FORECAST OF PERIOD OF THE RESERVOIR DEVELOPMENT STAGES

2020 ◽  
pp. 82-85
Author(s):  
M. Yu. Kharitonovа ◽  
◽  
N. A. Matsko ◽  
Keyword(s):  
Oil And Gas ◽  
Economic Assessment ◽  
Development Stages ◽  
Reservoir Development ◽  
Main Development ◽  
Modern Classification ◽  
Micro Level ◽  
Development Prospects ◽  
Period Duration

For resources in the exploration stage, the modern “Classification of reserves” requires determining the economic efficiency of development prospects. Calculations of the development efficiency are based on the development time, which is difficult to determine without technological projects and schemes due to insufficient initial data. The identification of development stages in the preliminary economic assessment is carried out on the basis of expert appraisals without precise criteria, by analogy with the fields under development. The article establishes empirical dependencies and shows the possibility of their use for express forecast of the period for finishing work on a field (deposit), duration of the main development period, duration of the increasing production stage. Dependencies allow solving the problem of constructing a production curve in conditions of limited geological data. The express method can be used at the macro level to develop strategies for the development of oil and gas regions and at the micro level in the economic assessment of the prospects for the development of objects.

scholarly journals THE ROLE OF RATIONALITY PHILOSOPHY IN LEGAL STUDIES (PART I)

2019 ◽  
Vol 23 (1) ◽  
pp. 48-61
Author(s):  
Valeriy P Ivanskiy ◽  
Sergey I Kovalev
Keyword(s):  
Point Of View ◽  
Legal Knowledge ◽  
Scientific Rationality ◽  
Clear Trend ◽  
Legal Studies ◽  
Legal Science ◽  
Analysis And Synthesis ◽  
Legal Thinking ◽  
Legal Rationality

The relevance of the article, which consists of two parts, is that the various theories of rationality presented only in philosophical works are considered. Meanwhile, it should be noted that in recent decades in scientific works on jurisprudence there is a clear trend of borrowing such terms from philosophy as «classical», «non-classical» or «post-non-classical» science in the description of a concept of law. Nevertheless, in legal studies there is still no concept of rationality, the criteria for its classification, allowing to describe the diversity of manifestations of legal reality. The purpose of the study is: 1) to find new non-classical foundations for the development of legal knowledge; 2) to substantiate the point of view that the category of "scientific rationality" and its typology used in philosophy, it is necessary to introduce into scientific use of legal science, which will push the boundaries of knowledge of legal reality; 3) to describe the features of understanding of the term "scientific rationality" in law in the context of its classification into the following two groups: classical and neoclassical (post-classical), as well as non-classical and post-classical. In the process of studying the philosophy of rationality in legal studies used a diverse set of methodological tools: 1) General philosophical methods (dialectical and idealistic); 2) General scientific methods - analysis and synthesis, deduction and induction, analogy, comparison; 3) and private (special) - logical, comparative-legal, formal-legal, normative-dogmatic; 4) method of interpretation, including the method of problem-theoretical reconstruction. The main results of achieving the goal of the study were proposals on: 1) introduction of the concept of "types and models of legal rationality" into the scientific circulation of jurisprudence; 2) classification of legal rationality into classical and non - classical types and corresponding models-neoclassical (post-classical) and post-non-classical. It should be noted that the post-classical and post-non-classical styles of legal thinking are evolved versions, respectively, of the classical and non-classical types of legal rationality. The basis for the classification of types of scientific rationality in legal science was the anthropological factor-consciousness homo juridicus and methodological tools with which legal consciousness is known. The novelty of the study is that the above classification of epistemological paradigms allows us to look at the law as a multilevel reality, which is simultaneously inherent in the two mechanisms of its Constitution - external and internal. Moreover, the presented criteria-based classification of legal rationality is the basis for the development of legal knowledge.

scholarly journals On the Shift of Parts of Speech in Prepositional Meaning in English-Vietnamese Translation

2022 ◽  
Vol 13 (1) ◽  
pp. 166-179
Author(s):  
Dac Phat Dinh
Keyword(s):  
Reference Material ◽  
English Learners ◽  
Research Paper ◽  
Parts Of Speech ◽  
Methods Of Analysis ◽  
Analysis And Synthesis ◽  
Multiple Meanings

Exploring the shift in meanings of translating prepositions from English to Vietnamese, the study, besides analyzing the cases of the changes in meanings of prepositions, aims to discuss a general variety of meanings of English prepositions. The methods of analysis and synthesis of theories from the available data on prepositions as well as the methods of classifying and systematizing prepositions were applied to English-Vietnamese translation. From the collected data, this study has revealed 6 cases of the shift in meanings of prepositions and the characteristics of multiple meanings of prepositions. In the course of translation, contextual meanings are used in order to convey the meanings appropriately in the Vietnamese style. The research paper can make some contribution to the teaching of translation and make it a reference material for English learners.

scholarly journals The role of GIS technology in determining irrigated geosystems

2021 ◽  
Vol 227 ◽  
pp. 03004
Author(s):  
Oykhumor Ruzikulova ◽  
Naila Sabitova ◽  
Gulbakhor Kholdorova
Keyword(s):  
Practical Importance ◽  
Scientific Paper ◽  
Structure Development ◽  
Gis Technology ◽  
Plastic Card ◽  
Scientific Significance ◽  
Object Of Study ◽  
Effective Use

Irrigated lands of Bukhara, Samarkand and Navoi regions are located in the Zarafshan river oasis and are called geosystems. Assessment of the reclamation state of geosystems of the region has been carried out in the area of classification and mapping for the effective use of land. When classifying a research object, it is much easier to identify, evaluate and apply reclamation measures. In the classification of landscapes, they are grouped in a certain order and there is an opportunity to apply such reclamation measures. So far, the basin-level classification of the Zarafshan river oasis and geosystems has not been carried out. In the scientific paper, landscapes were analysed as a form of geosystem. The geosystems of the region were grouped and summarized for the performance of the reclamation geographical assessment based on water and salt parameters. The classification of the object of study using GIS is of great scientific and practical importance. An analysis of the origin, structure, development and other features of an object when it is classified will determine the scientific significance of the case. Geosystems were isolated using the forms depicted on the relief plastic card in the scientific paper. Measures have been developed to improve the reclamation state of existing geosystems. They reached scientifically sound conclusions.

About the Classification of Housing Legal Relationship to Regulatory and Protective

2021 ◽  
pp. 39-45
Author(s):  
A.V. Mil’kov ◽  
◽  
S. I. Mukhametova ◽  
Keyword(s):  
Research Methods ◽  
The Past ◽  
Legal Relationship ◽  
Legal Nature ◽  
Analysis And Synthesis ◽  
Logical Method ◽  
The Subject ◽  
Goals And Objectives ◽  
Detailed Presentation

Statement of the problem. The question of the classification of housing legal relations into regulatory and protective ones is not debatable. But not because there is a consensus on this issue in the doctrine, but because until now it has not become the subject of special research. In some works, one can find a brief mention of the division of housing legal relations into regulatory and protective, but it is difficult to find a detailed presentation of the author’s position on this issue. Against the background of the active development of the classification of civil legal relations into regulatory and protective inattention to this issue in the science of housing law looks like a serious omission over the past decades. Goals and objectives of the study. The article discusses the main provisions justifying the classification under consideration, examines the attitude towards it in the literature of a housing legal nature. Research methods: the article uses a logical method, and above all such techniques as analysis and synthesis, functional and comparative legal methods. Results, brief conclusions: ignoring the classification in question leads to contradictions in the doctrine of housing legal relations, to the ingraining of unreliable ideas about the ratio of the categories included in this doctrine. It seems important to carry out further research of housing legal relations on the basis of a consistent classification of housing legal relations into regulatory housing legal relations and protective housing legal relations.

Methods of Forming and Evaluating Logical Universal Educational Actions when Teaching Russian

2020 ◽  
Vol 15 (5) ◽  
pp. 64-69
Author(s):  
Cherepanova Larisa V. ◽  
Keyword(s):  
Secondary School ◽  
Secondary School Students ◽  
Statistical Data ◽  
Russian Language ◽  
Diagnostic Methods ◽  
School Students ◽  
Functional Literacy ◽  
Methods Of Analysis ◽  
Analysis And Synthesis ◽  
The Russian Language

The importance of secondary school students’ proficiency in universal learning activities (ULA), including functional literacy, in order to socialize successfully makes the search for appropriate means relevant. However, it is no less important to diagnose the formation of ULA and identify problems within their acquirement. Understanding the importance of this problem led to the idea of using existing pedagogical methods in teaching the Russian language paying attention to their adaptation. The purpose of the article is to show how existing methods can be adapted in order to be used in the formation and assessment of the logical ULA during Russian language lessons. The study was based on the methods of analysis and synthesis when describing the problem of formation and assessment of ULA among schoolchildren; in the development of diagnostics – on the methods of analysis, abstracting, and constructing. In addition, a systemic method was used. Statistical data of the conducted research and their interpretation are presented to substantiate the need for the creation and adaptation of methods for the ULA formation and assessment. The study reveals the pedagogical diagnostic methods, which, with a certain adaptation, can be used for the logical ULA formation and assessment during teaching the Russian language. The research presents the adapted methods, which will allow organizing systematic work on the formation of logical ULA for secondary school students when studying the “Lexicology” section and assessing their formation among schoolchildren.

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