The paper presents the development of an information system for online railway tickets booking in Java Swing library. The goal is to provide users with convenient, fast and reliable service by solving problems in transport services’ digitalization. The authors indicate the functional specifications for the system (registration, route search, booking management) and specify the object-oriented programming architecture. The design includes an intuitive graphical interface with data validation, dynamic updating of the locations’ list and a module for viewing the train stations’ photo album. Unified modeling language (UML) diagrams create a visualization of the system structure. The modularity and cross-platform compatibility are provided through the use of Swing components. Comma-separated values (CSV) store the data, thus simplifying integration. Testing confirms the correct operation of the modules, including exception handling and operations’ synchronization. The system’s integration into real services has practical significance. Prospects involve integrating with Application programming interface (API) payment methods, having a mobile version, employing recommendation algorithms, and switching to cloud databases. The results demonstrate the Java Swing effectiveness for developing graphical user interface (GUI) applications in transport logistics.

The use of complex signals in radiolocation and electrical communications is limited by the existing research on correlation properties, which defines the relevance of signals’ optimization. The paper reveals that the signal system with maximum variants consists of prime integers of elements in sequence. Calculation of the autocorrelation properties sidelobe level in the signal system is presented. In addition, the paper examines the cross-correlation properties of a signal system based on Zadoff–Chu sequence. The results are applicable to radiolocation and electrical communications.

Despite the detailed descriptions in the literature, the study of signal systems remains relevant. The paper reveals that the signal system with maximum variants consists of prime integers of elements in sequence. Calculation of the cross-correlation properties sidelobe level in the signal system is presented. In the first part of the paper, the autocorrelation properties of signals from a signal system based on Zadoff–Chu sequence are examined. Results can be used for electrical communication.

The paper examines methods for developing and optimizing the operating mode of a traffic light, given changes in the traffic organization, using the example of an intersection in Surgut. The paper analyzes alternative traffic management options at one of the controlled intersections in Surgut. The authors analyze causes influencing the traffic capacity decrease and several alternate designs for incremental traffic regulation at the intersection, taking into account pedestrian passes. The research is carried out using simulation modeling. During the traffic lights setting up at the intersection, the methodological recommendations for the development and implementation of traffic regulation measures from the Ministry of Transport of the Russian Federation are considered. The accuracy of the model is assessed based on the GEH statistic. To analyze alternative options for the traffic reorganization, a multiplicative convolution of a vector indicator into a nonvector one is carried out. The research results can be used to solve problems of traffic light regulation analysis and optimization, as well as for educational purposes in bachelor’s or master’s degree programs.

The authors study the features and effectiveness of modular arithmetic within a quadratic range, including the implementation of basic arithmetic operations on commodity computers. The research aim is to analyze the structure and features of performing various arithmetic operations in the modular arithmetic within quadratic range and compare their time complexity with similar operations in traditional positional systems. To meet this objective, the authors investigated the structure and characteristics of modular arithmetic within a quadratic range. They implemented arithmetic operations in Python, performed experiments, and assessed the time complexity of operations. The research methods include a theoretical study of the basis of the modular arithmetic within quadratic range, the creation of algorithms for performing operations in Python, experimental testing and analysis of the results. The research result is the creation of an algorithm for performing arithmetic operations in the modular arithmetic within quadratic range, revealing a significant performance gain compared to positional number systems, confirmed experimentally. Therefore, this study proves that modular arithmetic can improve task productivity that requires speed and resources.

The paper presents alternative approaches and develops a methodology, algorithm and software for assessing the flight technique. This study’s aim is to improve flight technique assessment quality, reduce workload, and exclude subjectivity. The paper analyzes existing assessment methods for flight technique, reveals their disadvantages and substantiates the advantages of the proposed solutions. Authors propose two major approaches to the development of flight technique assessment for pilots with different initial pilot skills. The basis of the proposed flight technique assessment lies in coordinated landing maneuver flight parameters that correlate. Practice proved that the proposed assessment methods objectively and reliably identify flights with deviations from parameters, flights with errors in flight technique and prevent sending of an untrained pilot on the flight. Developed software suite enables statistics processing and automates the processes for flight technique assessment to build optimal programs of flight training. The proposed solutions can be implemented as separate software modules for ground-based flight data processing devices and put into practice.

The paper examines how school websites are filled with information that is not required by law to be published but is highly demanded by the parent community, pupils, and teaching staff. Due to the fact that current solutions only deal with required information for school website publication, this approach has academic novelty. The analysis proved that there is not enough relevant information on school websites. Therefore, the development of assessment and monitoring automation of websites’ content is relevant, and they are developing it by creating methods that can be implemented in an automated program suite. The aim is to improve websites’ information content by implementing monitoring and assessment methods for automated program suite. To achieve the aim, the authors analyzed complex situations, developed information website content classification and created monitoring and assessment methods for school websites’ information content. The object of the research is school websites. The subject of the research is computer methods of text information processing. Methods of the research included an analysis of existing methods for assessment of information content on the website. The results revealed that developed methods enabled an effective assessment of information content on school websites with the use of an automated program suite as well.

The matrix-predicate method for defining finite graphs, as introduced by the authors, and utilized for finite state automation, can be used to define Petri nets, which are bipartite (directed) multigraphs. A square matrix can also represent a Petri net in matrix-predicate form. With this, we can apply matrix theory to perform mathematical operations (set-theoretic and logical) on Petri nets. Employing predicate theory elements in network definition will enhance management flexibility.

The article focuses on designing and implementing an information system. It automates the accounting of wine supplies and sales for small and medium businesses. The author proposes an architecture based on the analysis of existing solutions that combines a client-server model with Java Swing to create an intuitive graphical interface. Generating analytical reports, the system manages data related to wines, supplies, sales, and stocks. The peculiarity of the solution is data storage in text files, which simplifies implementation and maintenance without integrating complex database management systems. A detailed review of the development stages is provided in this study: database design, business logic implementation, and testing of the interface and functionality. The result is a consistently working system, ready for scaling through switching to relational databases or integration with other business tools. This paper provides assistance to developers learning Java Swing and to entrepreneurs focused on optimizing and automating accounting procedures. The proposed system demonstrates that a thorough approach to business logic and database design, combined with a user-friendly interface, significantly improves business transparency and decision-making.

The paper studies the mechanisms that control flame direction and tumbling, as well as their influence on heat exchange processes in the combustion chamber. The configuration of a stabilized flame of a pre-mixed gas-air mixture is the object of analysis. Flame tumbling, as revealed by the authors, creates vortex structures, which boosts heat exchange. Analysis of temperature dependence demonstrates a significant increase in heat exchange rate during flame inversion, giving prospects for optimizing energy systems in order to increase their efficiency.