Unified Modeling Language Research Articles

Identification of Key Risk Factors in Mechanical Cross Passage Construction Based on the Decision-Making Test and Evaluation Test Method and the Interpretation Structure Model

In order to solve the problem that the key risk factors in the construction of mechanical cross passages are relatively vague, the decision-making test and evaluation test method (DEMATEL) and the interpretation structure model (ISM) are combined to analyze safety risks in the construction of mechanical cross passages scientifically and reasonably. Based on the ‘personnel’, ‘material’, ‘machine’, ‘method’, and ‘environment’ of 4M1E comprehensive management, the construction safety risk index system of mechanical method cross passage, including 18 risk factors, is extracted. DEMATEL was used to divide the risk factors into four factor sets: strong cause, weak cause, strong result, and weak result. Furthermore, ISM is used to construct a hierarchical structure diagram of risk factors, and deep risk factors and risk factors with a high node degree are divided. The results show that the safety awareness of construction personnel, the safety technology level of construction personnel, the establishment and implementation of the safety construction system, the level of construction management, and the degree of geological complexity are strong cause-type risk factors with both high centrality and high causality. Additionally, the effect of reinforcement of the internal support system, the setting of the digging parameter, the effect of grouting, and the effect of assembling the pipe sheet comprise the strong result-type risk factors with high centrality. The risk factors with higher node degree in ISM are consistent with the risk factors with higher centrality in the DEMATEL model, which are key factors that play an important role in risk control.

The Expert System Application to Diagnose Computer Damage Using UML Model (Unified Modeling Language)

The expert system application are developed in line with the existence of information technology. The development of expert systems aims to be a means of assistance to provide solutions in our lives. This expert system can help technicians get solutions quickly and can save time. Expert systems use computer technology to integrate, manipulate and display information or characteristics. Expert systems can also help in making better solutions. With the very rapid technological advances today, an idea or idea has emerged from the author to try to implement one of the expert system application programs into the quality of service activities of computer technicians. The author tries to build an application that will help to facilitate the provision of solutions to computer damage to hardware so that it can make it easier for users or technicians to get solutions quickly. The system to be created is "Designing an Expert System for Diagnosing Computer Problems Using Visual Basic" This system will use the prototype method and tools for modeling using UML (Unified Modeling Language). This system is built using the Visual Basic 6.0 application to process the Microsoft Access database.

Rancang Bangun Sistem Informasi Penggajian Guru Berbasis Website di Smas Plus Guna Cipta Cimanggung

Design of Teacher Payroll Information System is a system created to solve problems in the financial department, especially the payroll of teachers and staff at SMAS Plus Guna Cipta Cimanggung. The existence of a system that runs by recording payroll transactions and calculations still using semi-computerization, making it vulnerable to calculation errors and data redundancies. Data that is still separate causes the payroll process to take longer. As well as the difficulty of making payroll reports and pay slips because they have not been automatically computerized. The purpose of this research is to facilitate teachers or officers concerned in managing teacher payroll. And all users can access this information system more flexibly anywhere and anytime. The research method used is the Object Oriented Analysis and Design (OOAD) system with its development model, namely the Rational Unified Process (RUP) and its system design using the Unified Modeling Language (UML The results of the study show that this system can facilitate the process of managing teacher salaries more precisely and efficiently with easy access anywhere and anytime. Moreover, this system has a feature to manage attendance data using QR Codes.

Pengembangan Sistem Informasi Arsip Surat Berbasis Website di Desa Hegarmanah

The new archiving system in Hegarmanah Village, in operation for one year, is currently limited to storing formal letters. It does not yet cover incoming and outgoing letters or memos, is not integrated with Gmail, and lacks alternatives for server disruptions. Web- based technology facilitates secure and efficient archive storage. This research aims to address the shortcomings of the letter archiving system in Hegarmanah Village by adding memo features, integrating the application with Gmail, and providing alternatives during server disruptions. The goal is to enhance the efficiency and effectiveness of archive management in the village, including disposition notifications and minimizing the impact of server disruptions. The system analysis and design utilize Object-Oriented Analysis and Design (OOAD) and the Rational Unified Process (RUP) model, which includes initiation, design, construction, and deployment. The system is designed using Unified Modeling Language (UML), incorporating Use Case, Class Diagram, Activity Diagram, and Sequence Diagram to create an efficient archiving system in Hegarmanah Village. Based on the research and design of the Archiving Information System in Hegarmanah Village, the archiving system now includes the management of general letters and memos, expanding its archiving functions. Letter disposition is equipped with notifications integrated with Gmail, enabling the village head and staff to receive information more quickly. Additionally, an import file feature is provided as an alternative during server disruptions, allowing data to continue functioning and be imported once the server is restored, ensuring operational continuity.

Perancangan Sistem Customer Relationship Management (CRM) Berbasis Web pada Senyaman Resto & Coffee

Marketing or promotional activities that are still less effective are a business obstacle, especially at Senyaman Resto & Coffee. This can be seen from the large amount of sales transaction data, sales transaction data is still recorded in books and records. Based on this, this research aims to design a Customer Relationship Management (CRM) system to increase promotional activities and improve services to Senyaman Resto & Coffee consumers. This CRM system design was built using PHP and MySql programming. CRM system design also adopts design tools using Unified Modeling Language (UML). Based on performance testing of the CRM system that has been designed, it appears that the system can provide features for creating sales and customer reports. These results had quite an impact on sales data processing which was built better than before. The contribution of this research also provides efficiency in the promotion and sales management processes that occur at Senyaman Resto & Coffee

Virtual simulators in the automated control system subsystem for training operators of metal-cutting machines

The article describes the proposed method of automated construction of virtual simulators for the subsystem of personnel training of the automated control systems of production. Its distinctive feature is the work with the customer based on the provision of functional videos from production, as well as the formalization of the design and development process in the form of structures for the process of creating software and visual modules taking into account the specifics of the development of virtual reality simulators. An ontological model has been developed for the construction of virtual simulators for training machine tool operators in the automated control systems of production, which uses the identified basic concepts and relationships between them in the subject area of work of machine tool operators. Its implementation is based on the Protege software environment. The following diagrams are proposed: functional and contextual IDEF0 of the functioning of virtual simulators for training in working on universal metal-cutting machines: milling and turning. The architecture of a virtual simulator for use in the subsystem of training personnel of automated control systems of production, as well as a structural diagram of the formation of practice-oriented skills in working on metal-cutting machines using virtual simulators are described.

SISTEM INFORMASI DATA KEPENDUDUKAN PADA KANTOR KECAMATAN CIMAHI UTARA

Office District of Cimahi North represent one of the existing District is cimahi town, having four Sub-District. that is sub-district of Cibabat, Cipageran, Citeurep, Pasirkaliki. Frequent Problems appear in this Office District is in data processing like seeking and is depository of not regular data and less well guaranted its security. And also presentation of less available report. Is one of them caused by its process still done manually. Pursuant to existing problems hence developed a information system of data residental by using prototype method with model approach of Oriented Objeck ( OO) using OOA ( Object Orientied Analysis) and OOD ( Object Oriented Design). visualizinged with UML ( Unified Modelling Language). With made by Information System expected can give amenity especially to part of Division head Governance in the case of process data and provide residential information swiftly. Keywords : Information Sistem, the existing District prototype, Object Orientied Analysis, Object Oriented Design, Unified Modelling Language.

Agent-based model for forecasting the impact of the population life quality on migration movement in the context of the Russian Federation federal districts.

The Russian Federation is characterized by an extremely uneven distribution of the population across the country, which contributes to the asymmetry of economic and socio-demographic development of the regions, a shortage of qualified specialists for the development of the resources of Siberia and the Far East, and an increase in global risks in general. In this regard, the use of modern management technologies, in particular, multi-agent simulation modeling, to support decision-making on managing migration processes becomes relevant. Since the main incentive for active citizens to change their place of residence is investing in the development of the region and providing the necessary conditions for a comfortable life, the purpose of the study is to develop an agent-based model for forecasting the impact of the population life quality on migration flows between the federal districts of the Russian Federation. One of the tasks solved using the model is to track the direction of migrant movement relative to the Republic of Bashkortostan when changing the controlled parameters. The simulation model was designed using modern CASE tools; UML diagrams and a mnemonic diagram of the decision-making support process for managing the demographic development of the region were built in the course of the work. Scenario experiments were conducted to predict changes in the population size in the study areas. Within the framework of the research, the authors applied the object-oriented methodology of simulation model design, agent-based approach for its implementation, as well as an agent-oriented approach for its implementation and statistical analysis methods when setting up experiments. The toolkit developed as a result of the study can be used by the representatives of executive authorities and government officials to develop a balanced resettlement policy, assess the possibility and conditions for developing regions of the Russian Federation with low population density.

ShapeGPT: 3D Shape Generation with A Unified Multi-modal Language Model

ShapeGPT: 3D Shape Generation with A Unified Multi-modal Language Model

Polarity dependent predictable and random resistive switching in forming-free unipolar memristors

Polycrystalline, hexagonal HoMnO3 thin films sandwiched between an un-patterned Pt/Ti bottom electrode and a circularly patterned Al top electrode reveal forming-free, polarity dependent predictable and random, unipolar resistive switching with stable retention, and a resistance ratio between high resistance state (HRS) and low resistance state (LRS) larger than 104. An equivalent circuit model is proposed to describe the HoMnO3 memristor as a three-layered capacitor structure. Based on the energy band diagram of the HoMnO3 structure under applied negative and positive write bias, polarity dependent, predictable, and random resistive switching is explained. Furthermore, the conductance in LRS until RESET and in HRS until SET has been investigated. The conductance in LRS is large and constant until RESET bias is reached. The conductance in HRS increases from nearly zero to quantum conductance G0 (2e2/h) until SET bias is reached.

Recommender systems for Unified Modelling Language and vice versa — A Systematic Literature Review

Recommender systems for Unified Modelling Language and vice versa — A Systematic Literature Review

Object-Oriented Analysis of a Modern Scalable and Secure Banking System Using UML

This study explores UML (Unified Modelling Language) and Object-Oriented Analysis and Design (OOAD) usage to build a banking system that is both secure and scalable. The paper suggests a modern approach for banking applications, focusing on important aspects like transaction security, the ability to handle system growth, and real-time monitoring. The paper also shows how object-oriented methods can handle the complexity of banking systems. It explores technologies like microservices and blockchain to make the system more reliable and efficient. Lastly, it highlights the importance of security and fraud prevention, especially with real-time transaction tracking in today’s fast-moving financial worlds.

Research Progress on the Chemical Constituents and Pharmacological Effects of Houttuynia cordata Thunb and a Predictive Analysis of Quality Markers.

Houttuynia cordata (H. cordata) is widely used in respiratory disease control as an important heat-clearing and detoxifying traditional Chinese medicine. It effectively clears away heat and toxins, eliminates carbuncles, and drains pus, and it is diuretic and detoxicating. The aim of this study is to review the botany, chemical composition, pharmacological effects, and quality control of H. cordata to establish a better-quality evaluation system. Google Scholar, Baidu Scholar, PubMed, ScienceDirect, Web of Science, and multiple databases, including China National Knowledge Infrastructure (CNKI) and Wanfang Data, were searched. A structural diagram of the compound was drawn using ChemDraw software. H. cordata contains volatile oils, flavonoids, and alkaloids. It has antibacterial, anti-inflammatory, antiviral, antioxidant, antitumor, and immunity-enhancing pharmacological effects. By analyzing the literature, it was predicted that Houttuynia sodium, methyl nonyl ketone, quercetin, and quercitrin could be used as the quality markers (Q-marker) of H. cordata. This provides a basis for further research into the applications of H. cordata.

STRUCTURE OF THE SYSTEM FOR MONITORING THE CONDITION OF NITROCELLULOSE POWDER DURING THEIR STORAGE PERIOD BETWEEN PRODUCTION AND DISPOSAL

The stability of powder charges based on nitrocellulose plays a decisive role in determining their service life. As the research analysis shows, in almost all countries of the world there is a problem of maintaining the properties of powder charges at the guarantee level. The properties of nitrocellulose powder charges are constantly changing, and a large part of them is in the post-warranty stage of storage. Changes in the properties of nitrocellulose powder charges can be such that they lead to man-made accidents and disasters, both when using them for their intended purpose and when they are stored in bases and warehouses. Thus, the task of assessing the state and forecasting the properties of nitrocellulose powder charges at the relevant stages of storage becomes relevant. This task is complex and can be solved using a well-known approach to solving such tasks, namely a monitoring system. In general, any monitoring system includes three main components: measurement of informative parameters; assessment of the current state based on the performed measurements; forecast. It is shown that the problem of storage and accumulation of a large amount of ammunition, namely powder charges, is characteristic not only for Ukraine, but also for such developed NATO countries as the USA, Germany, France, and the Czech Republic. There is evidence that in some countries a system of continuous monitoring of the state of ammunition has been introduced, but the research methods are imperfect and dangerous. To control the state of nitrocellulose powder charges, it is proposed to create a monitoring system. A structural diagram of the monitoring system is presented, which includes both already developed elements and those that require additional research and development. It is shown that for the effective operation of the monitoring system, informative indicators are necessary, which allow determining the state of powder charges without the use of complex diagnostic equipment. In addition, it will allow the creation of a database of powder charges for further monitoring of their condition throughout the entire life cycle. An approach to defining and substantiating new constituent elements of the oil refinery condition monitoring system has been developed.

Design and Implementation of Decision Support System for Airport Emergency Disposal

To address the lack of integrated system applications in decision-support tasks and enhance the emergency response capabilities of airport authorities, this study analyzes the requirements and functionalities based on the Unified Modeling Language (UML) system analysis approach, tailored to the practical needs of emergency management. The system's functional modules and database were designed, and a decision-support engine combining "knowledge reasoning + text generation" was implemented. The resulting decision-support system for airport emergency incident management holds significant value for improving the development of airport emergency response frameworks and advancing informatization efforts.

Solid State Wave Gyroscope Parameter Assessment at Various Production Stages

The paper considers a solid-state wave gyroscope and describes the principles of its operation. Key stages of production together with parameters of solid-state wave gyroscope, characterizing quality, are studied and analyzed. The problem of automated quality control system development is raised. The set of gyroscope parameters, physical parameters of resonator oscillation modes, is chosen. The proposed set of parameters gives full description of device quality and can be analyzed at any of key production stages. So as to develop the evaluation method for solid-state wave gyroscope parameters a solid-state wave gyroscope mathematical model, as a free oscillation partial oscillator, that relates the phase variable dynamics with physical parameters, is analyzed. The resonator intrinsic wave drift rate being the principal quality parameter of gyroscope is studied. The relation between the drift rate and solid-state wave gyroscope physical parameters is considered. The measuring diagram for the suggested parameter set is developed on the basis of considered mathematical models, the technique is proposed, and software solutions for suggested approach implementation is developed. Structure diagram and state chart for the proposed solid-state wave gyroscope measurement parameters are described. The proposed diagram consists of two components: measurement and computational ones. The performance features of each component are described. Various operation modes of solid-state wave gyroscope parameter evaluation system are considered: free oscillation mode, wave pattern rotation, operation mode, and transition processes. The problem of applicability and efficiency of the proposed solutions is studied. The example of the developed system application is given. The results of obtaining the operating mode drift rate direct evaluation and drift rate evaluation obtained according to mathematical model and evaluated solid-state wave gyroscope physical parameter are analyzed. Possible ways of solid-state wave gyroscope parameter evaluation method improvement are considered.

REMOTE INTELLIGENT ROBOT MANIPULATOR CONTROL SUBSYSTEM

The issue of expanding the functionality of an intelligent software and hardware subsystem for capturing an object by a robot manipulator was considered. It is shown that the task of expanding the functionality of the subsystem for free-form object capture by a robot manipulator with technical vision based on the operations of building a depth map from the obtained stereo image is insufficiently developed and can be solved by integrating a remote robot cntrol subsystem connected to a local network or the Internet into the robotic complex. The subsystem was developed using a Raspberry Pi microcomputer, a Stereo Pi board, a board for connecting eight Adafruit PCA9865 servos, Raspberry PI cameras, and a camera module. The structure and electrical diagram of the subsystem, a description of the software, and the main code snippet of the web application program are presented. Based on the analysis of the research results, it is established that the proposed remote control subsystem provides an extension of the functionality of the intelligent software and hardware subsystem for capturing an object by a robot manipulator, since in addition to the functions of automatic object capture, due to remote adjustment of the accuracy and manufacturability of object capture, it provides the functions of high-precision positioning of objects relative to each other and especially the effort on the robot manipulator to perform precise operations. The reliability of the object capture is also increased due to the fact that the subsystem allows for the additional involvement of a team of competent users. The proposed system increases the degree of automation, provides the possibility of moderation, collective administration, and user feedback during robot operation.

Study of metrological characteristics of household gas meters when measuring the volume flow rate of gas-hydrogen mixtures

The paper presents the results of studies of the influence of pure gaseous hydrogen and gas-hydrogen mixtures and the performance and metrological characteristics of membrane-type gas meters used in the household sector. For the study, membrane-type meters of leading domestic and European manufacturers were pre-selected. A series of static and dynamic tests were conducted for the meters. The static tests involved checking the air-tightness of the meters under the influence of gaseous mixtures. The dynamic tests involved measurements on a simulated test site with a work medium of pure hydrogen as well as hydrogen-methane mixtures. The proportions of the mixtures used were: 80% of methane and 20% of hydrogen, and 90% of methane and 10% of hydrogen respectively. A structural diagram of the measuring system was developed. The measurements were performed by comparing the volume of the gas that passed through the experimental meter with the volume measured by the reference meter. The measuring system was equipped with a means for measuring the pressure and temperature of the measuring medium to bring the results of the experiments to standard conditions. As a reference means in the assembled measuring system, a drum-type gas meter with a calibration characteristic pre-determined under laboratory conditions with a work air medium was used. After the experimental studies with the work hydrogen medium and hydrogen gas mixtures under the conditions of the test site, the metrological characteristics were re-determined under laboratory conditions for the reference meter. To conduct the experiments with the maximum possible accuracy and to exclude the influence of additional errors on the measurement result, a specialized software was developed to automate the measurements of the volume of the gas passing through the reference meter, measuring the pressure and temperature of the work medium and fixing the required value of the gas volume flow rate. The results of the experiments for several meters are presented in the form of tabular values and graphs. General conclusions were made regarding the influence of hydrogen and gas-hydrogen mixtures on the change in metrological characteristics of household gas meters.

Possibilities of Using Integrated Intelligence in Managing Educational Processes in Higher Education Institutions

Abstract. Problem. In light of modern innovations in the field of higher education, the task of creating a model of a system for supporting educational processes is one of the urgent tasks of digitalization of education, and is considered not only as a task of developing the practice of strategic management in universities, but also as a system for supporting decision-making to regulate the experience and expectations of students. At the same time, there are many promising technologies based on the use of integrated intelligence to improve the teaching and learning process and ensure quality education. However, it has not yet been clearly defined which specific tasks for organizing the learning process can be effectively delegated to models endowed with artificial intelligence. Goal. The goal is to justify the delegation of the performance of individual components of the work of university departments to an artificial intelligence system. Methodology. Methods of analysis, synthesis and decomposition were used to identify the constituent components of the university division's work. The method of graphical modeling was used to construct the structural and functional diagram of the university division. When formalizing the work of the university department as a complex system, quantitative and qualitative evaluation methods were used. Results.The conducted analysis of the department's work determines the directions of formalization of the department's work processes with the aim of intellectualization of work processes based on integrated intelligent systems. The concept of creating a support system for the department's educational processes based on integrated intelligence is proposed to optimize the department's work and improve the quality of education. Originality. A system of support of educational processes (SSEP) based on integrated intelligence is proposed. The basis of the SSEP of the university should be the SSEP of the department as the main division of the university. This system should have multifunctionality and be, on the one hand, a tool for organizing and managing the department for the head of the department, and on the other hand, a means for implementing functional responsibilities for scientific and pedagogical workers. For students and postgraduates, the SSEP should allow achieving educational and scientific goals. In addition, the SSEP of the department should have the ability to store innovative solutions proposed at the department, control the success of the functions of scientific and pedagogical workers, as well as communication with the highest SSEP of the university. Practical value. The implementation of a system to support the educational processes of the department based on integrated intelligence will optimize the work of all department employees and create a basis for improving the quality of higher education.

Testing Bench for Reciprocating Hydraulic Cylinders with Energy Recovery: Structure, Simulation, and Calculation

Introduction. Energy conservation is an urgent topic of research in the field of mechanical engineering all over the world. A particular direction in these studies is the search for energy-efficient methods of testing technical systems, which allow the most accurate prediction of the reliability of the designed equipment. The duration of resource tests established by technical conditions and GOSTs causes an irreversible loss of energy, amounting to more than 1.5 resource of the tested machine, and the energy lost in the form of “harmful heat” is released into the environment. Therefore, the problem of energy saving during testing is given special attention. One of the ways of energy saving under testing of hydraulic machines is energy recovery. However, in papers devoted to energy recovery during testing of hydraulic machines, the problems of energy recovery during testing of rotary hydraulic machines were solved, and for reciprocating hydraulic machines, the problem of energy recovery during testing of plunger hydraulic cylinders was solved. The results of these studies cannot be directly used for testing reciprocating hydraulic cylinders. In this regard, the objective of this work has been formulated — to develop the structure and basic scheme of a test bench for reciprocating hydraulic cylinders, providing the recovery of part of the energy spent on testing, due to which the energy efficiency of the testing process is significantly increased.Materials and Methods. The paper used methods for modeling the process of stand functioning based on the application of the theory of volumetric rigidity. To carry out preliminary calculations of the stand operation process, a computer program based on the SimInTech software package was developed.Results. A structural and schematic diagram of a test bench for reciprocating hydraulic cylinders has been developed. A mathematical expression has been obtained that provides a preliminary assessment of the test efficiency coefficient. A computer program based on the SimInTech software package has been created, which allows the design parameters of the stand affect its operational characteristics, including the coefficient of energy efficiency of the test process.Discussion and Conclusion. The preliminary calculations of the operating characteristics of the stand showed that the efficiency coefficient of the proposed stand was 1.7. It can be increased by conducting additional studies aimed at obtaining rational design parameters of the stand. The proposed stand provides testing of reciprocating hydraulic cylinders with recovery of part of the expended energy, and its mathematical model allows using the numerical methods in calculations. This significantly simplifies the calculation process and increases the accuracy of the calculations. At the same time, it is possible to obtain rational parameters of the stand already at the design stage, without resorting to expensive and labor-intensive field studies.