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Artículos de revistas sobre el tema "SysML Block Definition Diagram"

Autor: Grafiati

Publicado: 10 de marzo de 2023

Última modificación: 19 de julio de 2025

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Akundi, Aditya, Joshua Ontiveros, and Sergio Luna. "Text-to-Model Transformation: Natural Language-Based Model Generation Framework." Systems 12, no. 9 (2024): 369. http://dx.doi.org/10.3390/systems12090369.

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System modeling language (SysML) diagrams generated manually by system modelers can sometimes be prone to errors, which are time-consuming and introduce subjectivity. Natural language processing (NLP) techniques and tools to create SysML diagrams can aid in improving software and systems design processes. Though NLP effectively extracts and analyzes raw text data, such as text-based requirement documents, to assist in design specification, natural language, inherent complexity, and variability pose challenges in accurately interpreting the data. In this paper, we explore the integration of NLP with SysML to automate the generation of system models from input textual requirements. We propose a model generation framework leveraging Python and the spaCy NLP library to process text input and generate class/block definition diagrams using PlantUML for visual representation. The intent of this framework is to aid in reducing the manual effort in creating SysML v1.6 diagrams—class/block definition diagrams in this case. We evaluate the effectiveness of the framework using precision and recall measures. The contribution of this paper to the systems modeling domain is two-fold. First, a review and analysis of natural language processing techniques for the automated generation of SysML diagrams are provided. Second, a framework to automatically extract textual relationships tailored for generating a class diagram/block diagram that contains the classes/blocks, their relationships, methods, and attributes is presented.

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Qiao, Dong Ping, Xiao Juan Liu, and Hao Li. "Research on SysML-Based Modeling for Production Management System." Advanced Materials Research 753-755 (August 2013): 1868–74. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.1868.

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A comprehensive and systematic model for the production process of large-scale equipment manufacturing can reduce the cost and time of the development and enforcement of the management system. The characters of a modeling language for systems engineering, SysML(Systems Modeling Language), are introduced, and through analyzing the complexity of the production management system for complex product, the basic requirements of its modeling are given; With the practical example in our project, SysML based model is built for production management system of complex product manufacturing ,the application of requirements diagram, use case diagram, block definition diagram, internal block diagram and activity diagram is introduced emphatically.

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Chu, Changyong, Weikang Yang, and Yajun Chen. "Dynamic Fault Tree Generation and Quantitative Analysis of System Reliability for Embedded Systems Based on SysML Models." Sensors 24, no. 18 (2024): 6021. http://dx.doi.org/10.3390/s24186021.

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As embedded systems become increasingly complex, traditional reliability analysis methods based on text alone are no longer adequate for meeting the requirements of rapid and accurate quantitative analysis of system reliability. This article proposes a method for automatically generating and quantitatively analyzing dynamic fault trees based on an improved system model with consideration for temporal characteristics and redundancy. Firstly, an “anti-semantic” approach is employed to automatically explore the generation of fault modes and effects analysis (FMEA) from SysML models. The evaluation results are used to promptly modify the system design to meet requirements. Secondly, the Profile extension mechanism is used to expand the SysML block definition diagram, enabling it to describe fault semantics. This is combined with SysML activity diagrams to generate dynamic fault trees using traversal algorithms. Subsequently, parametric diagrams are employed to represent the operational rules of logic gates in the fault tree. The quantitative analysis of dynamic fault trees based on probabilistic models is conducted within the internal block diagram of SysML. Finally, through the design and simulation of the power battery management system, the failure probability of the top event was obtained to be 0.11981. This verifies that the design of the battery management system meets safety requirements and demonstrates the feasibility of the method.

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Arifin, Habibi Husain, Ho Kit Robert Ong, Jirapun Daengdej, and Dianing Novita. "Encoding Technique of Genetic Algorithms for Block Definition Diagram using OMG SysML ™ Notations." INCOSE International Symposium 29, no. 1 (2019): 218–32. http://dx.doi.org/10.1002/j.2334-5837.2019.00599.x.

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Johns, Brian, Kristina Carroll, Casey Medina, Rae Lewark, and James Walliser. "AI Systems Modeling Enhancer (AI‐SME): Initial Investigations into a ChatGPT‐enabled MBSE Modeling Assistant." INCOSE International Symposium 34, no. 1 (2024): 1149–68. http://dx.doi.org/10.1002/iis2.13201.

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AbstractAs artificial intelligence (AI) becomes integral across industries, there is a growing opportunity to transform the generation of models for systems engineering. This research investigates the integration of OpenAI's GPT‐4 Turbo into CATIA Magic for Model‐Based Systems Engineering (MBSE), resulting in the creation of AI Systems Modeling Enhancer (AI‐SME). This study explores the comparison between models generated by AI, specifically OpenAI's GPT, and those crafted by human systems engineers. While recognizing challenges in AI‐generated models, this research underscores the potential of AI assistants to enhance the speed and accuracy of SysML model creation. Results demonstrate AI‐SME's successes in generating requirements, block definition diagrams, and internal block diagrams. Despite identified limitations such as redundancy and lack of cohesiveness in AI‐generated models, the study concludes that AI‐SME represents a notable advancement in AI‐assisted systems engineering.

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Watson, Michael E., Christina F. Rusnock, Michael E. Miller, and John M. Colombi. "Performing System Tradeoff Analyses Using Human Performance Modeling." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 60, no. 1 (2016): 734. http://dx.doi.org/10.1177/1541931213601168.

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Humans perform critical functions in nearly every system, making them vital to consider during system development. Human Systems Integration (HSI) would ideally permit the human’s impact on system performance to be effectively accounted for during the systems engineering (SE) process, but effective processes are often not applied, especially in the early design phases. Failure to properly account for human capabilities and limitations during system design may lead to unreasonable expectations of the human. The result is a system design that makes unrealistic assumptions about the human, leading to an overestimation of the human’s performance and thus the system’s performance. This research proposes a method of integrating HSI with SE that allows human factors engineers to apply Systems Modeling Language (SysML) and human performance simulation to describe and communicate human and system performance. Using these models, systems engineers can more fully understand the system’s performance to facilitate design decisions that account for the human. A scenario is applied to illustrate the method, in which a system developer seeks to redesign an example system, Vigilant Spirit, by incorporating system automation to improve overall system performance. The example begins by performing a task analysis through physical observation and analysis of human subjects’ data from 12 participants employing Vigilant Spirit. This analysis is depicted in SysML Activity and Sequence Diagrams. A human-in-the-loop experiment is used to study performance and workload effects of humans applying Vigilant Spirit to conduct simulated remotely-piloted aircraft surveillance and tracking missions. The results of the task analysis and human performance data gathered from the experiment are used to build a human performance model in the Improved Performance Research Integration Tool (IMPRINT). IMPRINT allows the analyst to represent a mission in terms of functions and tasks performed by the system and human, and then run a discrete event simulation of the system and human accomplishing the mission to observe the effects of defined variables on performance and workload. The model was validated against performance data from the human-subjects’ experiment. In the scenario, six different scan algorithms, which varied in terms of scan accuracy and speed, were simulated. These algorithms represented different potential system trades as factors such as various technologies and hardware architectures could influence algorithm accuracy and speed. These automation trades were incorporated into the system’s block definition (BDD), requirements, and parametric SysML diagrams. These diagrams were modeled from a systems engineer’s perspective; therefore they originally placed less emphasis on the human. The BDD portrayed the structural aspect of Vigilant Spirit, to include the operator, automation, and system software. The requirements diagram levied a minimum system-level performance requirement. The parametric diagram further defined the performance and specification requirements, along with the automation’s scan settings, through the use of constraints. It was unclear from studying the SysML diagrams which automation setting would produce the best results, or if any could meet the performance requirement. Existing system models were insufficient by themselves to evaluate these trades; thus, IMPRINT was used to perform a trade study to determine the effects of each of the automation options on overall system performance. The results of the trade study revealed that all six automation conditions significantly improved performance scores from the baseline, but only two significantly improved workload. Once the trade study identified the preferred alternative, the results were integrated into existing system diagrams. Originally system-focused, SysML diagrams were updated to reflect the results of the trade analysis. The result is a set of integrated diagrams that accounts for both the system and human, which may then be used to better inform system design. Using human performance- and workload-modeling tools such as IMPRINT to perform tradeoff analyses, human factors engineers can attain data about the human subsystem early in system design. These data may then be integrated into existing SysML diagrams applied by systems engineers. In so doing, additional insights into the whole system can be gained that would not be possible if human factors and systems engineers worked independently. Thus, the human is incorporated into the system’s design and the total system performance may be predicted, achieving a successful HSI process.

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Zhou, Hang, Canheng Zhang, Yue Li, Yang Gu, and Shikang Zhou. "Verifying the Safety of Aviation Software Based on Extended Colored Petri Net." Mathematical Problems in Engineering 2019 (April 7, 2019): 1–15. http://dx.doi.org/10.1155/2019/9185910.

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At present, various functions of aircraft have become more and more dependent on airborne software system, and the structure of modern airborne software is extremely complex. Engineers need to eliminate the situation in which the safety performance of the entirety reduces caused by mutual influence among components. This paper presents a comprehensive method with high efficiency for safety verification of airborne software system, in order to ensure the system meet safety requirement of airworthiness standard at the design stage. Safety Verification Colored Petri Net (SVCPN) for software safety verification is firstly proposed, and then the mapping transformation rules from Block Definition Diagram (BDD) of System Modeling Language (SysML) to SVCPN are proposed to achieve the accurately formal description of software system. Traversing all delivery paths of safety level transfer based on the Reachable Tree Diagram, to detect the components that do not meet the safety requirement of airworthiness standard. Based on the disambiguation algorithm, the fundamental components that cause safety problem are found out through the establishment of antinet to achieve the safety level reassign, ensuring the safety performance of the whole system. Finally, the case study and the comparison and analysis are applied to show the feasibility and superiority of our method.

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Ando, Takahiro, Hirokazu Yatsu, Weiqiang Kong, Kenji Hisazumi, and Akira Fukuda. "Translation rules of SysML state machine diagrams into CSP# toward formal model checking." International Journal of Web Information Systems 10, no. 2 (2014): 151–69. http://dx.doi.org/10.1108/ijwis-02-2014-0004.

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Purpose – This study aims to describe the behavior of blocks in the system under consideration using systems modeling language (SysML) state machine diagrams. In this paper, formalization and model checking for SysML state machine diagrams have been investigated. Design/methodology/approach – The work by Zhang and Liu (2010) proposed a formalization of SysML state machine diagrams in which the diagrams were translated into CSP# processes that could be verified by the state-of-the-art model checker PAT. In this paper, several modifications have been made and new rules have been added to the translation described in that work. Findings – First, three translation rules were modified, which apparently are inappropriately defined according to the SysML definition of state machine diagrams. Next, we add new translation rules for two components of the diagrams – junction and choice pseudostates – which have not been dealt with previously. Further, we are implementing the automatic translation system on a web-based model-driven development tool, which reflects on our translation rules. Originality/value – As the contribution of this work, more reasonable verification results for more general SysML state machine diagrams can be achieved.

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Aafia Latif, Sadia Latif, Alina Shaikh, Rana Muhammad Nadeem, and Abdul Manan Razzaq. "A SYSTEMATIC APPROACH TO FORMAL VERIFICATION AND VALIDATION OF EMBEDDED SYSTEMS: ENHANCING RELIABILITY AND SAFETY." Kashf Journal of Multidisciplinary Research 2, no. 03 (2025): 165–85. https://doi.org/10.71146/kjmr353.

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This article addresses the problem of model-based early design verification of systems engineering applications expressed using System Modelling Language (SysML). This thesis describes the formal specification and verification approach for the early design verification of real time embedded systems. The main objective is to assess the design from its functional requirements to ensure the conformance of system requirements at early design phase. My main contribution is a novel approach to model and verify the hybrid systems using SysML Block Diagram and hybrid automata. A formal verification technique “Model checking” has been used for the formal verification of SysML Block Diagram of real time embedded systems. The PRISM models Probabilistic Timed Automata (PTA) and Continuous Time Markov Chain (CTMC) are taken for the formalization and mapping of SysML Block Diagram. The user requirements are expressed as temporal logics Probabilistic Computational Tree Logic (PCTL) and Continuous Stochastic Logic (CSL) for the properties verification against the PTA and CTMC model. Moreover, it define hybrid automata based formal specification to extend the behavior of SysML Block Diagram. The upgraded SysML Block Diagram has more ability to capture the discrete and continuous behavior of hybrid systems accurately. The SysML block diagram is verified with PRISM in order to show the correctness of system functionality. This thesis presents the effectiveness and validity of proposed approach with the help of four case studies. The discrete and continuous time constraints are considered in case studies along with the system functionality. The discrete and continuous time constraint helps the system and software engineer to verify the real time aspect of system along with its system functionality.

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Hecht, Myron, Tomas Juknevičius, Kyle Post, and Andrius Armonas. "OMG Standard to Extend SysML to Reliability Engineering." INCOSE International Symposium 34, no. 1 (2024): 2431–51. http://dx.doi.org/10.1002/iis2.13279.

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AbstractThis paper describes a Reliability Block Diagram (RBD) Library that has been added to the Risk Analysis and Assessment Modeling Language (RAAML) version 1.1, the Object Management Group (OMG) standard for safety and reliability extensions for SysML. A discussion of relevant reliability concepts is provided followed by a description of the RBD library. An example of the library using an example system is described, followed by plans for further reliability enhancements in future versions of RAAML.

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UCHIYAMA, Yuya, Makoto ONODERA, Yoichi ARIMA, and U. OH. "Development of an Automatic Block Definition Diagram Generation Technology." Proceedings of Design & Systems Conference 2023.33 (2023): 3307. http://dx.doi.org/10.1299/jsmedsd.2023.33.3307.

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Avramenko, S. A., and V. D. Sekerin. "B2G market: nature and statistical analysis." Izvestiya MGTU MAMI 7, no. 4-1 (2013): 134–41. http://dx.doi.org/10.17816/2074-0530-68118.

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The paper formulates the definition of the main features of the B2G market. B2G market entities are classified. Block diagram of relationships between entities of this type of market is presented. The dynamics of the B2G market volume, its place in the economy of Russia is analyzed.

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Baklouti, Anis, Nga Nguyen, Faïda Mhenni, Jean-Yves Choley, and Abdelfattah Mlika. "Improved Safety Analysis Integration in a Systems Engineering Approach." Applied Sciences 9, no. 6 (2019): 1246. http://dx.doi.org/10.3390/app9061246.

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The goal of the paper is the integration of safety analysis in a model-based systems engineering approach to ensure consistency between system design and safety artifacts. This integration permits the continuous improvement of the structure and behavior of the system. It also reduces system development time and prevents late detection of errors. To reach this purpose, the SafeSysE methodology is extended. In SafeSysE, a preliminary Failure Mode and Effects Analysis (FMEA) is automatically generated from a SysML model, and this FMEA is then completed by the safety expert but no further development was proposed. The contribution of this paper is to suggest recommendations based on the FMEA analysis in order to enhance the system design and make it comply with safety requirements. First, an updated system structure that may contain redundancy is proposed. Then, a redundancy profile is used to enrich the system model with redundancy information, which will allow the generation of a dynamic fault tree considering the system behavior. Finally, the generated dynamic fault tree should be analyzed in order to create a state machine diagram that describes the behavior of the system. The created state machine with an internal block diagram will help the system designers to better understand the system dysfunctions by simulating the system. The proposed methodology is applied to an Electro-Mechanical Actuator system which is used in the aeronautics domain.

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MUKHINA, Marharyta. "Conceptualization of the financial security management mechanism of trade enterprises." Economics. Finances. Law, no. 12/4 (December 29, 2020): 25–28. http://dx.doi.org/10.37634/efp.2020.12(4).6.

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The paper considers the features of conceptualization of the financial security management mechanism of trade enterprises in the conditions of turbulent changes. It is proved that the architectonics of the financial security management mechanism of trade enterprises in accordance with comparative analysis can be considered in two spaces as a set: the main elements and links of the organizational structure. A mechanism for managing the financial security of trade enterprises (MMFSTE) has been built. The components of four MMFSTE blocks are analyzed. At the “conceptual block” level, the goal is defined, and in accordance with it – the goals and objectives, principles and desired results of the implementation of the mechanism. At the “organizational block” level, objects and subjects of the mechanism are defined. The methodological block defines the appropriate forms, methods, mechanisms, tools, technologies, and procedures for implementing the MMFSTE. Regarding the “functional block”, it should be noted that it includes three sub-levels of functioning of the mechanism: the first is the definition of restrictions; the second is the definition of implementation and provision subsystems; the third is ways to improve the mechanism and determine the effectiveness of its implementation. The latest economic tools for forming MMFSTE are considered: GAP-analysis, STEP-analysis, SWOT-analysis, KPI, Ishikawa diagram. The Ishikawa diagram is constructed to determine possible time losses when assessing the level of financial security of trade enterprises, which consists of thirteen factors-distimulants. Based on the construction of the Ishikawa diagram, the introduction of two correction factors is proposed: the documentation quality coefficient and the document flow automation coefficient and analytical calculations. This will reduce the asymmetry of information in the diagnosis of financial security of retail enterprises. Possible directions of ensuring financial security of trade enterprises that can increase competitiveness and become a tool for survival in the market environment are considered.

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KIRSCH, ALEXANDER. "BIASED DIFFUSION: TRAP ANALYSIS IN TWO DIMENSIONS." International Journal of Modern Physics C 10, no. 04 (1999): 753–57. http://dx.doi.org/10.1142/s0129183199000577.

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A method for analyzing clusters which block the random walk of particles in two-dimensional biased diffusion on percolation lattices above the percolation threshold pc is presented, focusing on the arising problems and explaining the phase transition. The difficulties in a precise trap definition are illustrated. Different trap definitions result in different trap statistics, more or less capable of capturing the trend of the phase diagram.

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Tevelev, Al V., V. M. Mosejchuk, A. V. Tevelev, and B. B. Shkursky. "Distribution of zircon age values in metamorphic rocks within the Taratash block of the Southern Urals (initial provenance signal)." Moscow University Bulletin. Series 4. Geology, no. 4 (August 28, 2017): 15–19. http://dx.doi.org/10.33623/0579-9406-2017-4-15-19.

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The article establishes and realizes an idea of definition of the initial provenance signal for the Southern Urals Taratash block using isotope dating of the zircons in the Archean and Early Proterozoic magmatic and metamorphic rocks. The work takes into account 132 data for which the discordance did not exceed 10%. We obtained a probability density diagram for zircon ages, which we used firstly for comparison with detrital zircons ages from the sandstones of lower riphean Ay suite, and secondly, with density of the zircon ages in the metamorphic rocks of the Aleksandrovsky block located to the east. The similarity of distributions was verified by means of the Kolmogorov-Smirnov test.

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Zaichenko, O. A., O. M. Ryzhkov, and S. I. Gavryluk. "HYBRID POWER SUPPLY SYSTEM OF ROTOR-TYPE ELECTROMAGNETIC SEPARATOR WINDINGS WITH INCOMPLETE DETERMINATION OF LOAD PARAMETERS." Praci Institutu elektrodinamiki Nacionalanoi akademii nauk Ukraini 2022, no. 62 (2022): 41–47. http://dx.doi.org/10.15407/publishing2022.62.041.

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Features of control of high-gradient electromagnetic rotary separators are considered. Structural diagrams of control systems with fuzzy logic controllers of the process of high-gradient electromagnetic separation are given. A new block diagram of a hybrid control system for a rotary-type electromagnetic separator combining classical and intelligent con-trol methods has been proposed. The example of a rotary electromagnetic separator shows that hybrid control methods can significantly increase energy efficiency in electrical technologies with current sources in power circuits with an incomplete definition of system parameters. Ref. 10, fig. 4.

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Гришина, Светлана, Svetlana Grishina, Андрей Шишкин, and Andrey Shishkin. "Efficient Management System of the Organization: Definition of Error from the Object of Control." Scientific Research and Development. Economics 6, no. 6 (2019): 108–11. http://dx.doi.org/10.12737/article_5c1b88edd09868.22812051.

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The article shows that when designing an organizational control system, it is most natural to use a systematic integrated approach and well-developed methods of system theory. The article continues the series of works of one of the authors devoted to the adaptation of the methods of control theory to economic objects. This paper deals with the mathematical description of the control system error. The block diagram of the organization management system is given. The system playback error is represented as the difference of the output signals of the ideal and desired systems. An equivalent and calculated system schema for error determination is presented. The mean square of the random system error is determined.

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Trapp, Sonja, Ervin Ramollari, Matthias Heintz, Sebastian Weber, Dimitris Dranidis, and Jürgen Börstler. "Collaborative Learning of UML and SysML." International Journal of Engineering Pedagogy (iJEP) 1, no. 2 (2011): 6. http://dx.doi.org/10.3991/ijep.v1i2.1663.

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<span style="font-size: 9.5pt; font-family: &quot;Palatino&quot;,&quot;serif&quot;;" lang="EN-US">In t<span style="color: black;">he EU-funded project Embed4Auto, we have developed an Integrated Learning Environment (ILE) to support UML/SysML training. The ILE combines independent distance learning with collaborative problem solving and social networking. The learning environment incorporates a set of learning resources on the modeling languages UML2 and SysML, an educational modeling tool supporting class and sequence diagrams and a tool for sharing and discussing solutions to modeling exercises. First evaluations of the ILE have shown promising results.</span></span>

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Trunova, I. M., A. V. Dyshlevskyi, and L. O. Kulish. "IMPROVEMENT OF THE METHODOLOGY OF SUBSTANTIATION OF DISTRIBUTION NETWORKS RECONSTRUCTION." Bulletin of the National Technical University "KhPI". Series: Energy: Reliability and Energy Efficiency, no. 1 (1) (December 30, 2020): 84–88. http://dx.doi.org/10.20998/2224-0349.2020.01.12.

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It is proposed to improve the methodology of substantiation of the distribution networks reconstruction by using a risk-oriented approach. It is substantiated that modern risk management technologies are based on engineering calculations with the use of competencies in financial knowledge and knowledge of quality management standards. The analysis showed that in the substantiation of the reconstruction of the objects of the distribution networks the priority objects are not determined, the estimated number of failures of the objects is not used in the calculations. The work aims is to improve the methodology of substantiation of the reconstruction of distribution networks with the development of a block diagram of the calculation algorithm to determine the priority of reconstruction objects. Methods of analysis of normative and reporting documents of distribution system operators and mathematical modelling of the duration of restoration work after the failure of distribution network facilities were used to solve the aims and tasks of work. The results of the analysis of the consequences of failures of overhead power lines concerning the duration of repairs are given. It is proved that in the conditions of incomplete financing of investment programs, the definition of priority objects of reconstruction is an influential factor for the efficiency of investments. A block diagram of the calculation algorithm has been developed for use in computer programs to determine the priority of reconstruction of distribution network objects after determining objects with critical consequences of failure. It is proposed to use a quantitative assessment of the technical condition of distribution network facilities, standards for labour intensity, and the number of service personnel in the algorithm for determining the priority of reconstruction of overhead power lines and transformer substations. It is concluded that in the conditions of incomplete financing of investment programs, the proposed methodology and block diagram of the algorithm for determining the priority objects of reconstruction of distribution networks can be useful to ensure the most effective work to improve the quality of electricity supply.

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Borodin, N. A., A. V. Knyazev, V. V. Tkachev, S. V. Zimarin, R. G. Borovikov, and P. N. Shcheblykin. "Overload protection for forestry machines when using pressed wood friction material." IOP Conference Series: Earth and Environmental Science 1231, no. 1 (2023): 012016. http://dx.doi.org/10.1088/1755-1315/1231/1/012016.

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Abstract The article proposes an original approach to the protection of forestry machines from overloads when using a friction material made of pressed wood. The use of compressed wood is an environmentally important aspect in the manufacture of friction materials for safety devices of forestry machines. This approach contributes to the development of green technologies in forestry engineering and ensures an increase in the environmental friendliness of logging operations. However, from an environmental point of view, self-ignition of pressed wood must be avoided. The definition of the transmitted and adjusting torque in relation to the frictional safety clutch is considered. It is noted that when the safety device slips, the friction material made of pressed wood will wear out unevenly, in the form of a wedge, if the working width of the contacting surfaces is large. A diagram of the calculated friction clutch is presented, as well as a diagram of the pressure fuse block, from which it can be seen how the rubber rings are not deformed in the same way due to their difference in diameters. It is noted that for forestry machines operating with frequent overloads, it is necessary to take into account the dynamic loads that occur during overload at the moment the fuse is triggered.

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Xiao, Hailin, Ju Ni, Wu Xie, and Shan Ouyang. "A construction of quantum turbo product codes based on CSS-type quantum convolutional codes." International Journal of Quantum Information 15, no. 01 (2017): 1750003. http://dx.doi.org/10.1142/s0219749917500034.

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As in classical coding theory, turbo product codes (TPCs) through serially concatenated block codes can achieve approximatively Shannon capacity limit and have low decoding complexity. However, special requirements in the quantum setting severely limit the structures of turbo product codes (QTPCs). To design a good structure for QTPCs, we present a new construction of QTPCs with the interleaved serial concatenation of [Formula: see text]-type quantum convolutional codes (QCCs). First, [Formula: see text]-type QCCs are proposed by exploiting the theory of CSS-type quantum stabilizer codes and QCCs, and the description and the analysis of encoder circuit are greatly simplified in the form of Hadamard gates and C-NOT gates. Second, the interleaved coded matrix of QTPCs is derived by quantum permutation SWAP gate definition. Finally, we prove the corresponding relation on the minimum Hamming distance of QTPCs associated with classical TPCs, and describe the state diagram of encoder and decoder of QTPCs that have a highly regular structure and simple design idea.

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Torres del Carmen, Felipe de Jesús, Edgar Hiram Robles Sauceda, Antonio de Jesús Balvantín García, Israel Martínez Ramírez, Adolfo Rafael López, and Oscar Jaime Ramos Negron. "Fractional Order Transfer Function for Modeling an Electrohydraulic System." Memorias del Congreso Nacional de Control Automático 7, no. 1 (2024): 85–90. https://doi.org/10.58571/cnca.amca.2024.015.

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This paper presents the analysis and synthesis of the fractional-order model of an electrohydraulic system expressed by fractional-order transfer functions of the servo valve and the double-acting cylinder by applying Caputo’s definition. From the analysis of the differential equations of the system dynamics, it is possible to obtain the fractional order expression that relates the output signal with respect to the input signal, of each of the analyzed elements. Then, these transfer functions are put in a block diagram to perform numerical simulations that allow comparing the performance of the proposed approach with respect to the modeling given in integer order. The results of the simulations have shown that the variation of the fractional exponent can reduce the settling time and rise time of the system response to a step input, however, it also shows the need to correctly understand the physical operation of the system to avoid a performance that does not correspond to real scenarios.

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Duleba, Nadiia. "Methodical bases of definition of level of economic safety of the motor transport enterprise." INNOVATIVE ECONOMY, no. 7-8 (2020): 151–57. http://dx.doi.org/10.37332/2309-1533.2020.7-8.21.

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Purpose. The aim of the article is deepening of theoretical bases and development of methodical recommendations on definition of level of economic safety of the motor transport enterprise and the prevention of threats of loss of economic safety by it. Methodology of research. The methodological basis of the article is the general provisions of economic theory, the work of economists on economic efficiency of production and economic security of enterprises. The following methods are used to analyse the state and main trends of economic security of the enterprise: the method of correlation and regression analysis - to determine the unknown parameters in matrix form and the vector of unknown parameters; methods of economic and mathematical modelling - for calculation of unknown parameters of multifactor regression. Findings. Methodical bases of definition of level of economic safety of the motor transport enterprise consisting of three blocks are developed: an estimation of a current condition of economic activity, a choice of factors of influence on economic safety and determining the level of economic security of the transport enterprise, each of which contains a set of actions, the implementation of which ensures the transition to the next block. Originality. Theoretical provisions are substantiated and the block diagram of definition of level of economic safety of the motor transport enterprise which is based on comparison of net operating incomes and operating expenses of the motor transport enterprise is developed. When the net operating income exceeds the total operating costs, the economic activity of the trucking company becomes profitable. But in order to talk about the economic security of its operating activities, the company needs a certain level of income that will cover the unforeseen costs associated with the influence of internal and external factors – “safety margin”. Practical value. The obtained results allow determining the level of economic security of motor transport enterprises and serving as a basis for further studies of the impact of internal and external factors on their activities and the mechanism for ensuring the success of these enterprises in the long term. Key words: economic security, motor transport enterprise, safety margin, levels of economic security, transition zone, vector of unknown parameters.

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Vantsov, S. V., F. V. Vasiliev, and O. V. Khomutskaya. "TECHNOLOGICAL PROCESS CONTROL CAPABILITIES." NAUCHNOE PRIBOROSTROENIE 32, no. 3 (2022): 117–28. http://dx.doi.org/10.18358/np-32-3-i117128.

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The modern definition allows us to interpret the technological process as a complex system in interaction with the components of the environment, which leads to a beneficial effect. From this point of view, the technological process is subject to the general rules of control theory, thanks to which the principles and algorithms used in this theory can be adapted and extended to the control of technological processes. It is noted, however, that the main difference between the technological process and traditional control objects is the constant irresistible and degradative change in its characteristics over time. The article shows the possibility of transition from process control in the statistical sense to control in terms of the actual state, i.e. to real-time process control. The concept of functional controllability of technological processes is introduced. An analysis of the generalized block diagram of the technological process control system as a technically complex system is given. The formalization of the goals of technological process control is given, which makes it possible to form further control tasks and typical control schemes for specific technological operations. It is demonstrated that these theoretical guidelines play a crucial role in the current shift from analog to digital control of technological processes.

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Samman, A., and V. A. Shakhnov. "Virtual Reality Mobile Platform for Restoring Upper Limbs Functions using Electromiography Data." Herald of the Bauman Moscow State Technical University. Series Instrument Engineering, no. 3 (136) (September 2021): 84–99. http://dx.doi.org/10.18698/0236-3933-2021-3-84-99.

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The article describes a mobile virtual reality platform based on the biological feedback of electromyography for restoring the functions of the upper limbs of people affected by accidents, stroke, Parkinson's disease or who suffered as a result of military operations. The definition of the electromyography (EMG) signal is given. The effectiveness of the biological feedback method in the rehabilitation process is indicated. The problem of initial data preprocessing is considered in order to identify the informative features of the EMG signal in the time domain. The general scheme of a mobile virtual reality platform based on biological feedback is described and preliminary evidence of the platform capability in its current state is presented. The block diagram of the EMG data acquisition module is developed. Developing a training program within the framework of computer games in two-dimensional or three-dimensional space is proposed. The algorithm of the mobile virtual reality platform based on the biological feedback of electromyography is illustrated. The results of the implementation of the proposed biofeedback electromyography system are presented. The advantages of the developed system in comparison with other systems currently available are emphasized; the disadvantages of this method are identified and ways to eliminate them are proposed

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Cauxeiro, Cirilo, Michel Lopez, Javier Hernández-Molina, Artur Miguel, Gizela Cauxeiro, and Vanessa Caetano. "Contourite vs Turbidite Outcrop and Seismic Architectures." Angolan Mineral, Oil & Gas Journal 1, no. 1 (2020): 20–26. http://dx.doi.org/10.47444/amogj.v1i1.9.

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The hydrocarbon exploration of oceanic depositional systems demands a better understanding of the role of bottom currents and their implications for petroleum systems such as reservoir and sealing rocks. Deep-marine bottom-current reworked sands (sandy contourites) have been recognized in hydrocarbon-bearing sands of the Kwanza Basin. Such understanding implies additional alternatives for the definition of exploration targets and prospect risk reduction. The southernmost part of the Kwanza Basin (Miradouro da Lua zone) comprises one of the best outcrops of contourites deposits, formed during the Miocene and Pliocene age. Laterally, coeval sandy deposits are found offshore Kwanza Basin along the continental margin, and have been one of the great challenges for the oil companies operating in Angola. Therefore, the aim of the current proposal is to characterize sandy contourite deposits at Miradouro da Lua and compare them with offshore deep-water sandy deposits, evaluating their conceptual and economic implication. Modern field sedimentology technique merged with reflection seismic data and other geographic information system (GIS) techniques, allow the characterization and proposal of a stratigraphic architecture diagram that explains the interaction of the deep-marine processes, especially gravitational (down-slope) and bottom current (along-slope) processes as well as its vertical and spatial association. Sonangol (Angolan State Oil Company) and Total (French Multinational Company) explore similar deposits in Block 48 in Ultra deep-sea, and they will also reactivate the exploration of the Iabe Formation in Block 4. The Tertiary Stratigraphic Architecture in Blocks 6, 7, 8, 19 and 20 are similar to the Lower part of the Miradouro da Lua zone. All these observations and data are very important to calibrate oil reservoir models.

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Buyalsky, V. I. "Factors of Correlation for Dynamic Links of Rotor Systems of Wind Electric Installation." Intellekt. Sist. Proizv. 19, no. 4 (2021): 61–68. http://dx.doi.org/10.22213/2410-9304-2021-4-61-68.

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The substantiation of definition of correlation factors for dynamic links of rotor systems of wind electric installations, as one of subtasks of the mathematical algorithms of dynamic behavior of system claimed for the further working out for the purpose of automated control updating fot the wind-electric installation which provides reduction of vibrations of all elements of rotor systems in conditions of loading a drive at different modes of operation of the energy-unit that promotes improvement of indicators of reliability for components of the modern wind installations is made. The problem of determining the parameters of the analytical model of the correlation function for the purpose of definition of correlation dependences between the measured values of meteorological and electro-power process taking into account the requirement of a minimum of the sum of squares of discrepancies (approximation errors) for the actual and approximating lines is solved. The average square deviation of an error of approximation, meteorological and electro-power process on the basis of a discrete estimation of ordinates of the analytical model of the correlation function does not exceed 1%. Mathematical formulas for definition of the spectral density of input and target casual processes, and also mutual spectral density of input and target casual processes of dynamic links of rotor systems on the basis of the block diagram of transfer functions of the system behavior for the purpose of revealing the degree of correlation of transfer functions are made. The analysis is made for processes of input and target signals of transfer functions with regard to their coherent state on the basis of calculation of factors of correlation for dynamic links of rotor systems for the purpose of the description of the transfer function within the limits of the analysis of vibrating fields of the unit as a whole since vibrations are causednot only by blades but also by all elements with rotor systems.

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Aulin, Viktor. "The Use of Methods of Theory of Sensitivities in Solving Problems of Technical, Transport and Production Systems and Processes." Central Ukrainian Scientific Bulletin. Technical Sciences 1, no. 5(36) (2022): 299–310. http://dx.doi.org/10.32515/2664-262x.2022.5(36).1.299-310.

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The criterion of its relative sensitivity (sensitivity) is constructed on the example of the function of technical condition of systems and units of machines as a function of diagnostic parameters. The relative criterion of sensitivity (sensitivity) for each diagnostic parameter and function of the state of weighting factors and operating time is considered. Using the properties of sensitivities and the method of realization of the theory of sensitivity of functions, partial criteria of relative sensitivity are obtained. Considering the set of functions of diagnostic parameters and reliability functions as functions of probability of trouble-free operation, it is shown that they are parametrically set. The connection of sensitivities of diagnostic parameters with the level of reliability of systems, units and machines in general is established. The block diagram of a method of definition of character of dynamic development of diagnostic parameters and indicators of reliability of a technical condition of systems and units of cars is developed. Mathematical models of relative sensitivity (sensitivity) for the most informatively significant diagnostic parameters of power units and transmissions are built on the basis of experimental research data. It is shown that mathematical models of sensitivity of diagnostic parameters allow to determine local values of sensitivity on operating ranges and are an effective tool for selection of operating ranges on which certain diagnostic parameters should be controlled to ensure proper reliability of systems, units and machines as a whole.

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Masaleva, Maria, and Victoria Nabiullina. "Logistics and maintenance support for vehicles in the agro-industrial complex." E3S Web of Conferences 363 (2022): 01055. http://dx.doi.org/10.1051/e3sconf/202236301055.

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The approach of logistics support of agro-industrial complexes with agricultural machinery and technical means for their maintenance in the planning of tender procurement procedures is considered. The proposed approach is based on the structure of the resource support of the agro-industrial complex, which is a complex organizational system. In the described structure of resources, a block of logistics support for vehicles and the material and technical resources necessary for its maintenance, the presence of which is important for solving functional and production problems, is singled out. On the basis of ongoing research, a cause-and-effect diagram has been developed with the definition of the most significant problems affecting the management of transport provision in agro-industrial complexes. A methodology for the expert assessment of the most demanded types of resources is proposed and described in order to optimize the spending of financial resources and increase the level of logistics support. The study of the approach under consideration is reduced to improving the procedure for planning tender purchases by developing and applying a model for determining and substantiating technical resources that are the most in demand for fulfilling the functional tasks of the agro-industrial complexes. As a result of the proposed model, the authors developed an algorithm for planning tenders, the practical application of which is based on achieving the objectives of the efficiency of spending financial resources and reducing the timing of tender procedures and their validity in terms of adequacy.

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Sherstobitov, S. V. "Experimental installation of a reference source of low currents for calibration of electrometers." Izmeritel`naya Tekhnika, no. 3 (May 15, 2024): 38–44. http://dx.doi.org/10.32446/0368-1025it.2024-3-38-44.

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Today, there is great scientific interest in the possibility of implementing reference sources of low currents based on single-electron pumps using the single-electron tunneling effect and the modern definition of the SI system. However, the practical use of this effect in everyday metrological practice has not yet reached the stage of widespread use. Typically, for routine calibration work in laboratories, either mass-produced instruments (low current sources and meters, electrometers) are used, which are calibrated against higher standards, or specially designed precision current sources. The article describes a reference installation developed on the basis of the VNIIFTRI, where in the mode of generating ultralow currents the principle of forming a linearly increasing voltage on a reference capacitor is used. A simplified block diagram of the reference setup is shown. Issues of practical adjustment of modern electrometers are considered. The generalized results of participation in international comparisons on low currents EURAMET.EM-S44 “Comparison of ultra-low DC current sources” conducted by national metrological institutes in 2018–2020 are presented. The results of a metrological study of the calibration factor Q and an example of calculating the uncertainty budget of measurements carried out at the VNIIFTRI as part of these international comparisons are presented. The research described in the article to increase the accuracy of measurements of small and ultra-low currents of this level has valuable practical significance in the field of electrical measurements, in aeroionometry and metrology of ionizing radiation.

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Masaleva, Maria, and Victoria Nabiullina. "Logistics and maintenance support for vehicles in the agro-industrial complex." E3S Web of Conferences 376 (2023): 04006. http://dx.doi.org/10.1051/e3sconf/202337604006.

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Robles, Edgar Hiram, Felipe J. Torres, Antonio J. Balvantín-García, Israel Martínez-Ramírez, Gustavo Capilla, and Juan-Pablo Ramírez-Paredes. "Fractional Calculus Applied to the Generalized Model and Control of an Electrohydraulic System." Fractal and Fractional 8, no. 12 (2024): 679. http://dx.doi.org/10.3390/fractalfract8120679.

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In this paper, fractional calculus is used to develop a generalized fractional dynamic model of an electrohydraulic system composed of a servo valve and a hydraulic cylinder, where a fractional position controller PIγDμ is proposed for minimizing the performance index according to the integral of the time-weighted absolute error (ITAE). First, the general mathematical equations of the cylinder and servo valve are used to obtain the transfer functions in fractional order by applying Caputo’s definition and a Laplace transform. Then, through a block diagram of the closed-loop system without a controller, the fractional model is validated by comparing its performance concerning the integer-order electrohydraulic system model reported in the literature. Subsequently, a fractional PID controller is designed to control the cylinder position. This controller is included in the closed-loop system to determine the fractional exponents of the transfer functions of the servo valve, cylinder, and control, as well as to tune the controller gains, by using the ITAE objective function, with a comparison of the following: (1) the electrohydraulic system model in integer order and the controller in fractional order; (2) the electrohydraulic system model in fractional order and the controller in integer order; and (3) both the system model and the controller in fractional order. For each of the above alternatives, numerical simulations were carried out using MATLAB®/Simulink® R2023b and adding white noise as a perturbation. The results show that strategy (3), where electrohydraulic system and controller model are given in fractional order, develops the best performance because it generates the minimum value of ITAE.

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Wu, Zhizhou, Xin Zeng, and Haochun Yang. "System-Level Reliability Analysis of Cooperative Driving with V2X Communication for Intersection Collision Avoidance." Transportation Research Record: Journal of the Transportation Research Board 2674, no. 8 (2020): 696–709. http://dx.doi.org/10.1177/0361198120919756.

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Cooperative driving with vehicle-to-everything (V2X) communication is a promising technique to improve traffic safety and efficiency. Intersection collision avoidance (ICA) is a typical safety application of it. This paper analyzes reliability of ICA with cooperative manual driving at the system level. First, the reliability of an ICA system is defined as the probability of the ICA system avoiding collisions or near-misses at intersections without failure under conditions that collisions or near-misses are about to happen. Post-encroachment time is used in the expression of this definition. Then, components of the ICA system are classified into four types: hardware, software, maneuver, and V2X communication, and a reliability block diagram (RBD) is applied to reveal how these components contribute to system reliability. Five ICA system patterns with different V2X communication modes and strategy types are compared based on RBD analysis. This shows that centralized strategies are more reliable than decentralized ones for V2I communication if software reliability of these two strategies is the same. Furthermore, reliabilities of ICA components are analyzed in detail, and they are classified into two categories based on their different impact modes on the system. Finally, a numerical example shows how to test reliability of an ICA system using reliabilities of its components by Monte Carlo simulation. Results show that closer distances from vehicles to their conflict point when alerted, longer driver reaction time, and smaller vehicle deceleration rates are more likely to lead to system failure, whereas communication latency has little effect on it.

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SAKNO, O. P., and T. M. KOLESNIKOVA. "VARIABILITY MANAGEMENT OF EFFICIENT VEHICLE OPERATION BASED ON FUNCTIONAL RESONANCE ANALYSIS METHOD." Ukrainian Journal of Civil Engineering and Architecture, no. 1 (June 24, 2021): 80–88. http://dx.doi.org/10.30838/j.bpsacea.2312.230221.80.721.

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Raising of problem. The methodology presented in this study is aimed at modeling the variability of the technical condition when operating a car in a complex social and technical system "car − person − environment". This allows you to simulate the change in the operational properties of the car depending on its operation, affecting the change in the technical condition by the Functional Resonance Analysis Method (FRAM). Purpose. The variability of the technical operation of the car needs to be managed, and not reduced or eliminated, since this is an advantage, as well as conditions for the safety and functioning of complex socio-technical systems. To control it, you must first monitor the variability of the vehicle's technical operation. A set of relevant indicators needs to be identified and developed. Their interpretation makes it possible to draw conclusions about the level of technical condition, operational properties of the vehicle and traffic safety and supports the prediction of the occurrence of future events (failure occurrence). Conclusion. Thus, the basic principles of the FRAM for modeling the variability of the technical condition when operating a car in a complex social and technical system "car − person − environment" have been determined. The relationship has been established between the definition of traffic safety, the FRAM model and the performance indicators of the vehicle. The developed model of the FRAM for maintenance of the undercarriage of cars, consisting of a set of functions that describe the actions taken to maintain cars to ensure their good condition. A block diagram of the implementation of functionally oriented technologies for the maintenance and repair of cars has been developed, taking into account the design features and the level of technology for technical influences. This allows you to objectively determine the required scope of maintenance work, depending on the results of diagnostics and the availability of technological equipment.

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Denisov, Viatcheslav A., and Aleksey A. Solomashkin. "Ensuring Reliable Operation of Machine Parts with a New System of Variable Tolerances." Engineering Technologies and Systems 30, no. 1 (2020): 76–91. http://dx.doi.org/10.15507/2658-4123.030.202001.076-091.

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Introduction. The article describes an algorithm for determining the system of tolerances for ensuring reliable operation of parts on the section. The block diagram of the program for determining the variable tolerances is demonstrated. There determined blocks of initial information − broken and smooth curves of the controlled parameter, histogram and graph of resource distribution and definition of active area of control, and blocks of building graphs of “marginal fan curves of wear” and systems of admissions for objects of study of two types: for universal fuel pump (UTN-5) and four-section small-sized fuel pump with mechanical regulator. Two ways of determining the system of tolerances are suggested. Variant 1 is a graphical way through constructing “limit fan curves of wear” and determining tolerances by the value of ordinates in the control points. Variant 2 is an analytical way. There is created a formula to replace the graphical method for determining system tolerances. Materials and Methods. Two models of high-pressure pump were selected as objects of the study. Nominal and limit values of parameters were known for the pumps. Schedules for checking and equation of wear curves are determined. Dependencies describing the pump plunger pair wear curves are determined. A histogram and graph for determining pump life cycles are drawn. The active area of control is determined with a given failure probability coefficient. Results. As a result of the study the values for the tolerances system of two types of high pressure fuel pumps are obtained. Reliability values for one pump type are determined. Graphic and analytical algorithms for determining the system of tolerances by the formula are developed. Discussion and Conclusion. The study approves the possibility of using the variable tolerance as a basis for determining the system of tolerances and reliability indicators of the diagnostic object.

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Yang, Dongfang, Dong Lin, Yuan Zhang, Xianpeng Yuan, and Haixia Li. "Changing Degree Model of Pb Content Transported by Ocean Currents." E3S Web of Conferences 236 (2021): 03012. http://dx.doi.org/10.1051/e3sconf/202123603012.

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Based on the survey data of the waters of Jiaozhou Bay in May, August and October 1992, the change of Pb content and its deposition process in the surface and bottom waters of Jiaozhou Bay were studied. According to the definition and model of Dongfang Yang’s content changing degree, the variation of Pb content at surface and bottom and of Pb content transported by main sea current formed a peak line in the southeast waters of Jiaozhou Bay. The Pb content on the surface reached its peak in August. From May to August, Dongfang Yang’s content changing degree was 79.84°. However, from August to October, it was -85.29°. Specifically, in surface water, Dongfang Yang’s content changing degree from May to August was 62.48°. From August to October, Dongfang Yang’s content changing degree was -39.00°. In the bottom water, Dongfang Yang’s content changing degree from May to August was 70.41°. From August to October, Dongfang Yang’s content changing degree was -80.03°. It indicates that the change of Pb content in surface nearshore waters passed through by the main sea current was determined by the change of Pb content transported by the current. The change of Pb content in surface seawater through the change of ocean currents increases or decreases the increase or decrease of Pb content in surface water —The Pb content of surface water increased or decreased with the increase or decrease of Pb content transported by main sea currents. The Pb content temporal variation in the surface and bottom of the southeastern waters of Jiaozhou Bay from May to October reveals the Pb content settling law: With the increase of Pb content in surface water, the Pb content in bottom water rose faster than that in surface water. When the Pb content in surface water decreased, the Pb content in bottom water decreased much faster than that in surface water. Therefore, the change mechanism of surface and bottom water caused by source transport is proposed with the corresponding model block diagram and changing degree model of Pb content transported by ocean currents.

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Buyalsky, V. I. "Methods of Increasing the Control Efficiency of Wind Electric Installation by the Account of Vibration Loading the Drive Under Different Conditions of the Energy Unit Operation." Intellekt. Sist. Proizv. 19, no. 3 (2021): 74–81. http://dx.doi.org/10.22213/2410-9304-2021-3-74-81.

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The substantiation of an urgency of a way of effective automated control of wind electric installation by the account of vibration loading a drive is made under different conditions of energy unit operation, aimed at minimization of vibration of all rotor system elements by reducing the error of a mismatch between the angular speed of a rotor wind turbine and a generator rotor that promotes the improvement of reliability of electric supply of the basic control in conditions of the incomplete information on characteristics of the meteorological and electric power conditions that are changing in time considerably. The method is proposed to control the process of electric power manufacture by the development of an optimizing model which would cover the control not only by means of the angle of the electric generator blade revolution, but also by considering the conditions of vibration loading the drive under different conditions of the energy unit operation - and it is the dynamic analysis of frequency interactions of all elements of rotor systems and power interactions from blades of elements, as one of components of the wind loading. The review of the basic ways of controlling the wind turbines is made. It showed, that the use of any of them depends on the provided purpose of control and on the availability of the information on system parameters and a feedback, and it does not solve a problem of alignment of angular speed of the wind turbine rotor and the generator rotor without a mismatch error between them, that generates shock loads, and consequently, vibration of rotor systems. The problem of definition and description of all elements of the energy unit rotor systems is solved. The differential equation of the angular speed of the wind turbine rotor is worked out. Transfer functions of dynamic elements of rotor systems for automatic control taking into account the influence of the wind speed, capacity of the consumed electric power, their block diagram and the schedule of the transient process of regulating the angular speed of the wind turbine rotor are constructed.

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Polyakova, O. S. "Conceptual foundations of formation of the public administration system in legal education." Public administration aspects 6, no. 9 (2018): 43–51. http://dx.doi.org/10.15421/151853.

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The urgency of the chosen topic is due to the insufficient development of the methodology of public administration of legal education in Ukraine, the need for its conception, the definition of the structure, the mechanism of influence on cognition and practice. In this regard, the necessity of creating the conception of legal education development as a comprehensive detailed long-term course of Ukraine aimed at achieving the main goal of law-education activity – enhancement of legal culture and legal consciousness of the population is substantiated.The article presents the meaning of the conception for the field of knowledge of public governance and administration and proposes to consider it as a normative legal document, which defines the mission and development ideas, reflects the vision of the existing state of a particular process or phenomenon. The block diagram of the development of the conception of public administration in legal education in Ukraine is proposed. The structure of the conception which confirms its scientific character is defined: substantiation of the conception of the goal and directions of the conception realization; tasks concerning realization of directions defined in the conception; identification of steps (ways, measures, methods), the responsibles and timing of implementation; expected results.The factors influencing the formation of a high level of legal culture and citizens’ legal consciousness are determined, the most actual problems that are characteristic for the modern stage of Ukrainian society development are outlined. The structure of general goals and directions concerning the development of legal education in Ukraine is presented. The functions to be performed by the public administration system in the development of legal education (forecasting, planning, organizational, coordinational, regulating, accounting, controlling, informing, explanatory, propaganda, diagnostic, compensatory) are determined.It is proved that the conception should represent a system of views on the development of legal education, the formation of a state policy on the development of legal literacy of the population, consolidation of efforts of state authorities and government, local self-government and various civil society organizations in shaping legal knowledge, raising the level of legal culture and legal awareness of citizens.

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Buyalsky, V. I. "Optimizing Model of the Account of Conditions Loading the Drive Under Different Conditions of Operation of Wind-Electric Installation." Intellekt. Sist. Proizv. 20, no. 1 (2022): 43–48. http://dx.doi.org/10.22213/2410-9304-2022-1-43-48.

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An optimizing model of dynamic links of rotary systems of a wind power plant is described, which would cover control not only using the angle of rotation of the blades of an electric generator, but also take into account the conditions of vibration loading of the drive under different operating conditions of the power unit, as one of the subtasks in demand for further development of mathematical algorithms for dynamic behavior of the system in order to modify automated control of a wind power plant, which reduces the vibrations of all elements of rotary systems under conditions of drive loading in the operating mode of the unit, which contributes to improving the reliability of the components of modern wind turbines. The analysis of stability of a control system wind-power by installation on the basis of the results of the description of the characteristic equation of transfer functions of model developed for the decision of a problem of increase of a control efficiency wind-electric by the unit is made. The problem of function extremes definition within the structure of its variables based on the first and second function derivatives in terms of chosen argument taking into account the requirement of the sum minimum of squares of no viscous variations of twisting moment error control is solved. The block diagram of transfer functions of dynamic links rotor systems on the basis of the optimized model of a control system wind-electric unit is made. Modeling of automatic control system of a rotor wind turbine angular speed on the basis of the optimized function which covers control not only by means of blades rotation angle of the electric generator, but also considers conditions of drive loading under different conditions of power unit operation is executed. The analysis of angular speed delay regulation of the wind wheel on the basis of optimizing model of wind-electric unit control is made, recommendations of practicability of the further researches within the limits of the method for timely preparation of operating decision-making system are given.

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Dashchenko, H., N. Klymash, L. Dukhnovska, O. Vialets, and G. Blokhina. "Controlling as an enterprise management tool in the digital economy." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 5 (October 30, 2023): 134–40. http://dx.doi.org/10.33271/nvngu/2023-5/134.

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Purpose. Expansion of the ability to implement an adaptation approach in enterprise management because of the implementation of the new controlling concept (NCC) in a digital economy. Development of the mathematical model of the adaptive approach. Methodology. The study uses general and special methods of cognition: abstract-logical analysis – to determine NCC, its preconditions, new opportunities; inductions and deductions – to establish the importance of adaptation as a NCC component, to harmonize strategic and operational plans; mathematical methods – for presenting an adaptation in structural and logical form; generalization method – for proposing ways of implementing the adaptation; logical abstraction – for development of the scheme of implementation of adaptation approach, and study on the possibility of diversification of the strategy, with the coordination of enterprise sub strategy. Findings. The definition of the new controlling concept is proposed, its preconditions are detailed. Ways of implementing an adaptation approach to managing the enterprise in conditions of dynamic changes are proposed. It is indicated that a new opportunity opened by NCC is the use of diversification of the company’s strategy and the implementation of adaptive coordination of sub strategies in real-time conditions. It is stated that the indicator of development of diversification can be used as an indicator of the adaptation capacity of the enterprise. The requirements for the introduction of NCC and the two main methods for implementing the adaptation approach are specified. Originality. A mathematical model of the adaptive approach for the implementation of NCC has been developed. A mathematized approach has been developed to coordinate sub strategies. A basic block diagram of the realization of the adaptation approach when introducing a new controlling concept has been developed. Practical value. The results of the study can be used by scientists to improve the methods and tools of NCC and by practitioners in the development and implementation of management information systems. The proposed approaches will increase controlling efficiency.

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Valery, Kostanovsky, Machalin Igor, Kozachuk Oksana, and Terentyeva Irina. "CONSTRUCTION OF A GENERALIZED PROBABILISTIC-PHYSICAL MODEL OF RELIABILITY OF A TWO-LEVEL ACTIVE PHASED ANTENNA ARRAY." Eastern-European Journal of Enterprise Technologies 3, no. 9(99) (2019): 31–40. https://doi.org/10.15587/1729-4061.2019.168525.

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A generalized probabilistic-physical model of reliability of a two-level active phased antenna array (APAA) of a multifunctional radar station was presented. When constructing the APAA physical model, definitions of failures of the radiating channel and the antenna array as a whole were formulated. Key parameters of the APAA were chosen: radiation power, gain in transmission and the top level of the near side lobes. This has made it possible to formulate generalized criteria of failure of the APAA operating in the modes of transmission and reception as well as determine the permissible number of failures of the radiating channels and receiving modules. The physical model of the APAA reliability was formalized by a system of equations describing deviation of key parameters of the antenna array beyond the permissible limits. At the same time, boundary (permissible) values of the number of failed radiating channels and receiving modules were found that provide critical (minimum permissible) values of key parameters of the antenna array. To construct a probabilistic model of the APAA reliability, the antenna array was defined as an isotropic hierarchical system and a formula was derived for determining the average number of operable radiating channels in the multi-level APAA structure. A block-diagram of reliability of receiving and transmitting sub-arrays, receiving and transmitting APAA has been built and formalized. Definition of failures of the receiving and transmitting sub-arrays, receiving and transmitting APAA was given. This has allowed us to derive analytical expressions for determining mean time to failure, probability of failure-free operation, density of time to failure and failure rates for sub-arrays and the APAA. Exponential distribution (for sudden failures), diffusional non-monotonic distribution (for gradual failures) and composition of exponential and diffusional non-monotonic distributions (at a joint manifestation of sudden and gradual failures) were used as models of failure of SHF elements, transistors, radiating channels and receiving modules. An illustrative example of calculation of the average time to failure of a two-level APAA of a multifunctional RS including 6400 radiating channels was presented.

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BURYI, Grigory, and Ilya POTERYAEV. "Determination of the optimal strength and speed of soil digging of a single-bucket hydraulic excavator with a spherical shape bucket." Sustainable Development of Mountain Territories 14, no. 2 (2022): 321–29. http://dx.doi.org/10.21177/1998-4502-2022-14-2-321-329.

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Introduction. The paper describes the scope and purpose of single-bucket hydraulic excavators. The method of digging a single-bucket excavator with a bucket of spherical shape, which allows to increase productivity, is considered. The urgency of increasing the productivity of these machines is formulated. The purpose of the work: to determine the optimal strength and speed of digging the soil of a single-bucket hydraulic excavator with a spherical bucket. Research methodology. To confirm the effectiveness of the proposed bucket design, a diagram of the forces acting on it during digging is presented. The rheological model of the process of digging with a bucket of spherical shape is considered. A mathematical model in the form of a system of second-order differential equations has been compiled on the basis of the force scheme and the rheological model. Research results. A mathematical model has been identified that makes it possible to calculate the dependence of the speed and optimal force when digging the soil with a spherical bucket of a single-bucket hydraulic excavator, depending on the design parameters of the bucket and the parameters of the soil. The dependence for determining the friction force of the soil inside the bucket arising during digging is given. The dependencies for determining the weight of the soil in the bucket and the bucket itself are described. The dependence for calculating the lateral pressure of the soil using a stabilometer is given. The dependences of the calculation of the friction force of the external soil on the bucket and the friction force of the external soil on the soil in front of the bucket edge are presented. A dependence for determining the normal force from the external soil to the compacted soil in front of the bucket edge is proposed. The concept of a "compacted core of the soil" in front of the bucket edge is given and the dependence for determining its depth is given, however, a more precise definition of the latter requires additional research. A dependence is proposed for determining the mass of soil located in front of the bucket edge. The conditions for the possibility of digging the soil are accepted, in which the digging speed is greater than zero, and the digging force is minimal. An algorithm is described that allows you to select the minimum force for the digging process based on the dependencies given in the work. A block diagram of the algorithm for selecting the minimum force for the process of digging with a spherical bucket is given. The selection of the minimum digging force will confirm the effectiveness of a single-bucket hydraulic excavator with a spherical bucket.

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Berdar, Marharyta, and Olha Yevtushevska. "INNOVATION ACTIVITY MANAGEMENT OF ENTERPRISES UNDER SELF-DEVELOPMENT." Baltic Journal of Economic Studies 6, no. 2 (2020): 25–31. http://dx.doi.org/10.30525/2256-0742/2020-6-2-25-31.

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There are the research directions, determined as relevant, such as the issues of innovation activity management of enterprises, identifying the main causes of low innovation activity of domestic companies, improving the innovation activity management system of industrial institutions, which necessitates the formation of a scientific and methodological basis that can realize the ability to describe the process of innovation activity of the enterprises and mechanisms to manage them. These issues are also relevant because in the context of strengthening the course on European integration, the management of domestic enterprises is tasked with identification of the methodological and practical experience of innovative management of the EU countries as soon as possible and harmonization of their policies in accordance with its provisions. The subject of the study is complex research of management of innovative activity of enterprises under self-development. The purposes of the article are a study of the main directions of operation of innovative-active enterprise under self-development; analysis of key indicators of innovation activity of an enterprise; characteristic of the mechanism of innovation activity management of an enterprise in terms of self-development; definition of directions of policy of strengthening of innovation activity with the purpose of increase of efficiency of development of domestic enterprises. To achieve these purposes the following research methods are used: analysis and generalization of theoretical sources and scientific literature; abstract-logical method in the process of theoretical generalizations and formation of conclusions; prognostic and diagnostic; general scientific methods of analysis and synthesis. Results. The article describes the concept of innovation activity of the enterprise and details its main elements. The authors have also formulated the concept of innovative-active enterprise and presented the priority directions of its operation. The basic aspects of improvement of the innovation activity management system of the enterprise under self-development are considered. The key aspects of improving the management system are highlighted: analysis and evaluation of changes in the operation of the enterprise (evaluation of innovation activity); choice of direction of innovative development of the enterprise; development of strategy of innovative operation (definition of priority of directions, their correlation, development of scenarios); control of implementation of the enterprise development strategy. The process of improving the system of management of innovative activity of the enterprise under self-development is presented as a block diagram. The process is considered and the mechanism of innovation activity management is proposed. Practical implications. The article presents the process of managing innovation activity according to the degree of selfdevelopment of the enterprise. The proposed mechanism has practical orientation in forming a set of measures for strategic development of the enterprise. In general, the paper outlines the main tasks for improving the innovation activity management system, the solutions of which will improve the effective functioning of the enterprise.

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BARAS, S., L. KRUPELNITSKYI, and O. ONYSCHUK. "MEASUREMENT OF NARROWBAND RESISTANCE FREQUENCY RADIO SIGNAL OF LIMITED DURATION." HERALD OF KHMELNYTSKYI NATIONAL UNIVERSITY 295, no. 2 (2021): 56–63. http://dx.doi.org/10.31891/2307-5732-2021-295-2-56-63.

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The work concerns analog-digital systems that work with radio signals emitted and received by the antenna, and these signals have a limited duration, ie are pulsed. The propagation conditions of such signals and the processes of formation of echo signals affect their amplitude, frequency and phase characteristics in such a way that they form classical narrowband signals. The operation of the system involves the determination of certain parameters of echo signals, and taking into account their pulse nature for such a definition is given a limited time interval. This means that the procedure for determining the parameters must meet the criterion of high speed, and therefore differ from the traditional, built on the use of phase-locked loop. The article is devoted to solving the problem of measuring the reference frequency of a pulsed narrowband radio signal. By analyzing the results of experimental studies, two types of errors in measuring the reference frequency of a narrowband radio signal were identified and the causes of their occurrence were established. These errors are provoked by the peculiarities of the structure of the narrowband signal. The reason for the error of the 1st type, the absolute value of which correlates with the duration of the half-cycle of the reference frequency, is the so-called phase jumps at the point of change of the sign of the bypass. The frequency of such errors within the duration of the echo signal is generally low, although it increases with increasing signal spectrum width. Type 2 errors occur due to the appearance of zones with almost completely suppressed signal amplitude, which may be the result of intrapulse interference and / or signal attenuation. Such errors also occur more often if the spectrum width is larger. A method for measuring the reference frequency of a narrowband pulsed radio signal is proposed, which is based on counting the number of half-cycles of the reference frequency on a time-limited measurement interval and removing from this procedure areas with completely suppressed signal amplitude. An auxiliary highly stable reference frequency is used to establish the numerical value of the reference frequency. The block diagram of the frequency meter and the algorithm of its operation are given, the implementation of which avoids these errors.

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Львович, К. И., and А. П. Преображенский. "Structuring the optimization modeling of the personnel adaptation process to digital management in organizational systems." МОДЕЛИРОВАНИЕ, ОПТИМИЗАЦИЯ И ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИ 9, no. 4(35) (2021): 15–16. http://dx.doi.org/10.26102/2310-6018/2021.35.4.015.

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В статье рассматривается задача структуризации оптимизационного моделирования процесса адаптации персонала к цифровому управлению в организационных системах. С этой целью реализация предложенной структурной схемы цифрового управления исследуется в рамках требований к эффективности, качеству и надежности человеко-машинной системы. Дано определение оптимизационного моделирования процесса адаптации персонала к инновационной деятельности. Показана необходимость учета ряда признаков, связанных как с особенностями цифрового управления, так и структуры подготовки персонала. Особое внимание уделено процессу командной адаптации персонала с использованием концепции Aggile. С учетом выделенных признаков проведена структуризация исходных данных и предложен характер их преобразования для выбора оптимального варианта управляемого процесса адаптации персонала к деятельности в условиях цифрового управления организационной системой. Этапы структуризации формализованы с позиций теории нумераций путем решения задачи нахождения главной вычислимой нумерации на множестве морфизмов, построенных на исходных нумерационных множествах. Все этапы нумерационной структуризации и преобразования объединены в рамках единой схемы оптимизационного моделирования процесса адаптации персонала к инновационной деятельности. The paper discusses the problem of structuring the optimization modeling of the adaptation process of personnel to digital management in organizational systems. The implementation of the proposed block diagram of digital control is investigated within the framework of the requirements for the efficiency, quality, and reliability of a man-machine system. The definition of optimization modeling of the process of adaptation of personnel to innovative activities is given. The necessity of considering several signs associated with both the features of digital control and the structure of personnel training is shown. Particular attention is paid to the process of team adaptation of personnel using the Agile concept. With allowance for the selected features, the structuring of the initial data was carried out, and the nature of their transformation was proposed to define the optimal variant of the controlled process of adaptation of personnel to activities in the context of digital management of the organizational system. The structuring stages are formalized from the position of the numbering theory by the problem solving of finding the main computable numbering on the set of morphisms built on the original numbering sets. All stages of numbering structuring and transformation are combined within a single optimization modeling scheme for the personnel adaptation to the innovation process.

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Prokhorova, Viktoriia V., Valentyna M. Protsenko, Olena V. Bozhanova, and Anastasiia V. Protsenko. "Business Ideology as a Reflection Reaction to Socioeconomic Realities in Conditions of Constructive Destabilization." PROBLEMS OF ECONOMY 4, no. 54 (2022): 177–85. http://dx.doi.org/10.32983/2222-0712-2022-4-177-185.

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The aim of the study is to generalize the theoretical and applied aspects of the formation of an ideological space of a unified nature as a reflexive reaction of business to socioeconomic realities in conditions of constructive destabilization. Based on the carried out analysis of statistical data, it is proved that a fundamentally new direction comes into being for domestic economic science, i. e., studies of business behavior for the faster recovery of the country’s economy, which requires the formalization of adequate instruments of a modern manager. Analyzing, systematizing and generalizing the scientific works of many scholars, the views of researchers on the definition of the concept of «ideology» were systematized, the principles of business ideology were allocated, the goal, types, signs, functions, principles, methods of ideological influence within the framework of building the ideology of management were defined. The presented publication forms theoretical and applied aspects of the ideological space of a unified nature as a reflexive reaction of business to socioeconomic realities. The issue of reflection as a system of reactions to socioeconomic realities is examined. The article considers the forms of reflection, the objective etiology of the formation of spheres of reflection through the prism of multidisciplinary connections. It is proved that the forms of reflection as a system of business reaction to socioeconomic realities in conditions of constructive destabilization have a tactical and strategic result. For a clear understanding and detailed analysis of the behavior of the problem under study, a block diagram of causal relationships is built. It is proved that reflection is an instrument for influencing the development of emotional intelligence, which explains the nature of the analytical choice of an alternative solution to the subject of economic relations and determines the possibilities of consolidated external information influence on this choice. Of practical importance is the universal model of the cognitive map of the behavioral model of business structures, which allows to explain the multi-vector format of development in rational, limited rational and irrational dimensions, combining the features of the model of constructive development of the destabilizing format and crisis phenomena

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Ярошенко, А. О., О. С. Шпичак, Н. В. Хохленкова, and Г. Б. Юр’єва. "Development of industrial technology of plant substance of viburnum opulus fruit liquid extract." Farmatsevtychnyi zhurnal, no. 6 (December 28, 2023): 94–103. http://dx.doi.org/10.32352/0367-3057.6.23.07.

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Nowadays, the development of domestic herbal medicines for the treatment of diseases of the cardiovascular system remains one of the current problems in the health care system of Ukraine. Some types of plant raw materials that can be successfully used in the complex therapy of cardiovascular diseases include viburnum fruits (Viburnum opulus L.). Pharmacological activity, the antimicrobial, antioxidant and cardioprotective properties of the extract developed on their basis from the fruits of the viburnum opulus fruit liquid extract (VOFLE) have studied by preclinical in vitro researches. The aim of the work was the development of industrial technology of the domestic plant substance Viburnum opulus fruit liquid extract (VOFLE) for the purpose of it further introduction into the tablet dosage form. Experimental samples of viburnum opulus fruits of domestic origin were used as object of research, harvested in the experimental fields of the Institute of Vegetable and Melon growing of the National Academy of Agrarian Sciences of Ukraine (Kharkiv region) to obtain the plant substance VOFLE. Physicochemical and pharmacotechnological methods of research have been used in our work. As a result of physical, chemical and pharmacotechnological researches, a domestic plant substance – Viburnum opulus fruit liquid extract (VOFLE) has been developed and standardized by extracting viburnum fruits (Viburni opuli fructus) by water-ethanol mixture 50% at the general ratio of raw material: extractant – 1:10, the analysis of each production stage of the technological process was carried out in order to establish the main technological parameters that are subjected to monitoring during the introduction of plant substances in industrial production and during the validation of the technological process. The technology of the domestic herbal substance viburnum opulus fruit liquid extract (VOFLE) obtaining was theoretically justified and experimentally developed with the aim of its further introduction into a tablet medicinal form of cardioprotective and membrane-stabilizing activity. A technological block diagram was developed with the definition of its main critical stages of the production process of the herbal substance, as well as a production equipment scheme, which was tested in industrial conditions of the LLC «Pharmaceutical Company "Zdorovya"», Kharkiv.

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Sholichuddin, Achmad Agus, and M. Prastawa Assalim T.P. "The Enhancing Accuracy in Mycobacterium Tuberculosis Counting on Acid-Fast Bacteria Sputum through Microscope Camera and Image Processing with Thresholding Method." Jurnal Teknokes 17, no. 1 (2024): 79–83. http://dx.doi.org/10.35882/teknokes.v17i1.671.

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Tuberculosis (TB) is a chronic infectious illness. Pulmonary TB is still a global threat and concern. Currently, TB is among the top 10 causes of death in the world in 2015 and it is estimated that there are around 10.4 million new cases of TB in the world. 6 countries account for around 60% of new cases in the world: India, Indonesia, China, Nigeria, Pakistan, and South Africa. Globally, the TB death rate was around 22% of total world deaths from 2000 to 2015. This study introduces an innovative tool, the "Microscope Camera for Enhanced Mycobacterium Tuberculosis Counting in Acid-Fast Bacteria Sputum through Image Processing with Thresholding Method," designed to revolutionize the examination of tuberculosis (TB) samples. In response to the global threat of Pulmonary Tuberculosis, the tool employs a state-of-the-art CMOS-HD (Complementary metal-oxide-semiconductor High Definition) camera module and leverages the Python application for efficient image processing. The primary objective is to address the limitations faced by conventional diagnostic methods, particularly the challenges associated with the Rapid Molecular Test Method due to its dependence on expensive equipment, thereby making it less feasible for implementation in resource-constrained public health centers. The study underscores the persistent threat of TB as a global health concern, emphasizing its prevalence, with approximately 10.4 million new cases worldwide. Focusing on Ziehl-Neelsen stain sputum samples, the research seeks to elevate the accuracy of TB diagnosis by proposing a streamlined approach. This involves integrating a digital microscope system with a CMOS-HD camera module and utilizing advanced image processing techniques, specifically the Python Thresholding method. In the methodology, the research outlines a comprehensive data collection and analysis process. Mechanical and block diagrams illustrate the design of the module, while the system flow diagram elucidates the sequence of steps involved in TB sample analysis. The data analysis section employs metrics such as average, percentage error, and success percentage, providing a quantitative assessment of the system's performance. The results reveal an encouraging average system accuracy of 85.30%, demonstrating the potential of the developed tool to enhance the diagnostic process. However, the study transparently acknowledges areas for improvement, particularly in addressing discrepancies between manual and system calculations. The conclusion emphasizes the tool's promising role in assisting healthcare workers in detecting and counting TB bacteria in sputum, underscoring the need for ongoing refinements to achieve a definitive 100% accuracy and eliminate the possibility of misdiagnoses.

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DRUZHININ, V., J. BOIKO, O. EROMENKO, and V. KORSUN. "DYNAMIC MODELS OF SPACE-TIME SIGNAL PROCESSING FROM RADIO-FREQUENCY RADIATION SOURCES IN THE CONDITIONS OF SPACED RECEPTION OF LOCATION INFORMATION." Herald of Khmelnytskyi National University. Technical sciences 283, no. 2 (2020): 12–25. https://doi.org/10.31891/2307-5732-2020-283-2-12-25.

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Algorithms for determining the coordinates of radio-frequency radiation sources in passive mode in the conditions of non-directional reception are described in the framework of determining the potential of methods of synthesis of apertures of passive radio monitoring systems. The relation between the antenna motion parameters of radio receiving modules and signal coherence intervals during radio monitoring is estimated. An illustration of ambiguous determination of the direction of signal arrival from radio interference sources in the conditions of undirected reception is carried out. The geometrical ratio of angles at change of the direction of movement of the carrier of the radio receiving module is proved. The trajectories of radio receiving modules in parallel courses with certain distance and interval between carriers are synthesized. An expression for calculating the inclined distance to the source radio-frequency radiation is obtained. the block diagram of the algorithm for determining bearings for radio sources and its carrier frequency is synthesized. The graphic interpretation of kinematic relations at movement of the leading and conducted remotely piloted aircraft is resulted. Methods of realization of necessary position of reception points on an interval of time of monitoring for unambiguous definition of bearings on radio-frequency radiation sources in a passive mode at movement of radio receivers with a priori defined spatial configuration are offered. Projections of trajectories of movement of two carriers of radio receiving modules with the set interval and distance between them on a horizontal plane are constructed. It has been found that it is possible to hold the subjects at the appropriate distance by means of a radio beam (on the line of sight). The expression of dynamic error (mistake) of keeping the conducted on the necessary trajectory both in case of pure pursuit, and in case of pursuit with shift is received. The model of estimating the accuracy of determining the coordinates of radio-frequency radiation sources is investigated in order to analyze the accuracy of their direction finding. The bearing was found to be trigonometrically dependent on the coordinates of the radio-frequency radiation sources and the meter. The results of mathematical modeling of the change of the standard deviation of the accuracy of the coordinates of radio-frequency radiation sources from the time of signal accumulation (aperture synthesis) are presented.

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