This study analyzes the performance of Reed-Solomon codes (RS codes) using the MATLAB software environment. RS codes are selected as a class of error-correcting codes characterized by high performance under multiple burst errors, which makes them widely applicable in areas such as digital television, data storage (CD/DVD, flash memory) and wireless communication. The paper demonstrates and evaluates the performance of RS codes in practice through their simulation in MATLAB. The study covers the creation of simulation models for encoding, error insertion and decoding data using RS algorithms in MATLAB. The performance of the codes is evaluated by calculating the bit error rate (BER) and other relevant metrics. The influence of key parameters of RS codes (e.g., codeword length, number of check symbols) on their error-correcting ability is analyzed. The results of the study are intended to clearly show how RS codes cope with different types of errors and how their performance can be optimized by tuning the parameters. The work highlights the importance of MATLAB as a tool for developing, testing and optimizing coding systems, providing practical tools for researchers and engineers.

Keywords: Reed-Solomon codes, MATLAB, error correction, simulation, performance, error probability, communication systems, data storage

In this paper, methods for estimating one's own position from a video image are considered. A robust two-stage algorithm for reconstructing the scene structure from its observed video images is proposed. In the proposed algorithm, at the feature extraction and matching stage, a random sample based on the neighborhood graph cuts is used to select the most probable matching feature pairs. At the nonlinear optimization stage, an improved optimization algorithm with an adaptive attenuation coefficient and dynamic adjustment of the trust region is used. Compared with the classical Levenberg-Marquard (LM) algorithm, global and local convergence can be better balanced. To simplify the system's decisions, the Schur complement method is used at the group tuning stage, which allows for a significant reduction in the amount of computation. The experiments confirmed the operability and effectiveness of the proposed algorithm.

Keywords: 3D reconstruction，graph-cut, Structure-from-Motion (SfM)，RANSAC，Bundle Adjustment optimization，Levenberg-Marquardt algorithm，Robust feature matching

The paper considers a lightweight modified version of the YOLO-v5 neural network, which is used to recognize road scene objects in the task of controlling an unmanned vehicle. In the proposed model, the pooling layer is replaced by the ADown module in order to reduce the complexity of the model. The C2f module is added as a feature extraction module to improve accuracy by combining features. Experiments using snowy road scenes are presented and the effectiveness of the proposed model for object recognition is demonstrated.

Keywords: Bobkov A. V., Du K., Dai I., Wang Z., Chen H.

This article explores the architectural and engineering significance of surfaces of the second order, with a particular focus on the one-sheet hyperboloid of revolution. The study begins with a historical overview of architectural forms, highlighting the evolution from primitive shelters to complex spatial structures. Mathematical foundations are introduced through quadratic equations, illustrating the formation of second-order surfaces such as the elliptic paraboloid and hyperboloid. Special attention is given to the structural properties of the one-sheet hyperboloid, a doubly ruled surface that enables construction using straight beams, despite its curved geometry. Its advantages—strength, wind resistance, and material efficiency—are discussed, along with typical assembly methods such as segment welding and overlapping connections. The article further examines the iconic Shukhov Tower in Moscow, a pioneering example of hyperboloid design. It outlines the construction methodology, including the telescopic assembly process and challenges such as structural fatigue and support failure. The analysis demonstrates how Vladimir Shukhov’s innovations contributed to global architectural and engineering practices. Finally, the article emphasizes the hyperboloid’s relevance in modern construction and research, illustrating its blend of geometric rationality, aesthetic expressiveness, and structural efficiency. This synthesis of art and science continues to inspire both professionals and the public, highlighting the enduring value of advanced geometric principles in architecture.

Keywords: hyperboloid, quadratic surface, hyperboloid of revolution, engineering structure, architectural form, Shukhov Tower, steel structure, spatial lattice, structural technology, lattice shell

This article presents a method for adapting the TPL-1 telescopic rangefinder for photometric observations of artificial Earth satellites (AES). By integrating a ZWO ASI294MM Pro camera and a "Jupiter-21M" lens onto the telescope’s mount while retaining its original tracking capabilities, the system achieves high-precision photometric measurements without requiring expensive astronomical equipment. The custom-designed mounting mechanism ensures stable alignment and minimizes vibrations, allowing for prolonged observation sessions with reliable data acquisition.
The study demonstrates the system’s effectiveness through observations of several satellites, including ERS-2, ADEOS-II, and ALOS, each exhibiting distinct photometric signatures. The results reveal periodic brightness variations, rotational dynamics, and reflective properties of these objects, with measurement accuracy comparable to professional setups. The adapted setup proves particularly valuable for educational purposes, space debris monitoring, and satellite behavior analysis, offering a cost-effective alternative to specialized instruments.
This work highlights the potential of repurposing military-grade optics for scientific applications, bridging the gap between amateur and professional astronomy. Future enhancements could focus on automation and advanced data processing techniques to further expand the system’s capabilities.

Keywords: photometry, artificial satellites, TPL-1 telescope, equipment adaptation, light curves, space monitoring

The article is devoted to the analysis of the process of redesigning industrial buildings in Moscow in the context of urban development of the city. Based on data from the Moscow Department of Investment and Industrial Policy (2023), the current state of industrial zones (hereinafter referred to as industrial zones) is being investigated: 25% of the 150 facilities have already been redeveloped, and over 80 enterprises have been moved outside the MKAD since 2010. Successful transformations (ZIL, Hammer and Sickle, Red October) and criteria for choosing new functionality are considered: location, historical value, ecology, transport accessibility. Using cartographic data, promising areas for renovation (AZLK plant, Compressor, Rubber) have been identified and options for their adaptation have been proposed, from creative clusters to residential complexes. The role of redevelopment in the sustainable development of the city, the need to comply with environmental standards and take into account the needs of local communities is emphasized.

Keywords: Redevelopment, industrial buildings, urban spaces, renovation, industrial heritage, urban development, environmental standards, creative clusters, residential development, public spaces, urban planning policy, industrial zone, sustainable development

The article analyzes the design features in the conditions of the Far North. Attention is focused on the need to take into account climatic, geographical and socio-economic factors, as well as the use of innovative approaches to ensure economic development. The authors propose compensatory measures aimed at mitigating the negative conditions of the region, contributing to the successful implementation of projects in the Far North, as well as ensuring safety and reducing the duration of construction projects. The study of the most significant compensatory measures and their effective application is conducted.

Keywords: design, Far North, Arctic, regional features, unique factors, climatic conditions, geographical conditions, innovative approaches, development, compensatory measures

This paper examines the evolution of church architecture in Syria from the 4th to the early 6th century. Given the extensive damage to historical sites due to ongoing conflicts, this study relies on a comprehensive analysis of archival records, bibliographic sources, iconographic materials, and regulatory documents. By systematically categorizing churches based on their architectural characteristics and historical context, this research identifies the dominant structural typologies and traces their transformation over time. The findings reveal three primary church forms—hall churches, three-aisled basilicas, and centralized churches—each reflecting distinct regional and chronological developments. The study further assesses material use, spatial organization, and stylistic elements, evaluating their role in shaping Syrian Christian architecture. While certain features, such as exterior moldings and basilica proportions, suggest a unique architectural identity, the evidence remains inconclusive. This research contributes to a deeper understanding of Syrian church architecture and highlights the need for further field studies and preservation efforts.

Keywords: Syria, early Christianity, Christian churches, Syrian church building style, systematization

During the research, a new prestressing system was developed for carbon fiber reinforced polymer plates to reinforce damaged steel beams. A parametric analysis was performed using finite element modeling. The results showed that satisfactory amplification efficiency can be achieved using the new pre-voltage system. The prestressed carbon fiber significantly increased the performance when bending beams at the elastic and elastic-plastic stages due to the use of high-strength carbon fiber plates. In addition, as the pre-voltage level increased, the amplification efficiency increased. A simple increase in the area or modulus of elasticity of the carbon fiber plate slightly improved the hardening efficiency, while the simultaneous application of prestressing clearly increases the hardening efficiency.

Keywords: reinforcement, steel beam, prestressing, new system, carbon fiber plate

The article deals with the principles of creating software used as part of sensing systems for restoring the visibility of the gas smoke protection service link in a smoke-filled environment during rescue operations. The architectural part of the device and the description of algorithms of the device operation are described. Attention is paid to the methods of forming a digital model of obstacle heights and visualization of the spatial situation. Approaches to filtering of erroneous sensor values and selection of significant contours of objects, processing of data from ultrasonic grating, infrared sensors, as well as temperature and humidity sensors are given. The role of the device in providing accurate navigation, reducing the time to search for the fire center and improving the overall safety of the gas smoke protection service unit when working in a smoky environment is emphasized.

Keywords: smoke protection service, smoke-filled environment, sensing device, algorithms, software, firefighting, reconnaissance, modeling, navigation, sensor data

When designing engineering protection, it is necessary to use modern and progressive technologies. The technical decisions made must comply with the fundamentals of design - economic and operational efficiency. This article discusses the methods and principles of operation necessary for hazard assessment and the development of effective measures to prevent and reduce risks in the design, selection of optimal solutions and recommendations for the development of engineering protection projects. A section of a public highway of local significance in the Krasnodar Territory was selected during the survey. The materials of engineering and geological studies of the slope were used as initial data, which included reconnaissance route observations, engineering and geological workings with soil sampling, and determination of the physico-mechanical characteristics of the soils.

Keywords: engineering protection, surveys, design, stability, reconstruction, soil, landslide slope

This work is devoted to describing the development and integration of two key subsystems of an insect-like six-legged robot: a gait control module and a computer vision system for autonomous navigation. It examines architectural solutions, algorithmic foundations, and the practical implementation of components that ensure stable movement and intelligent interaction of the robot with its surroundings.

Keywords: insect-like robot, gait control module, computer vision, autonomous navigation, ROS2, SLAM, RTABMap, NAV2, OctoMap, tripod gait, Raspberry Pi, LiDAR

The article considers the influence of seismic load at different points on underground polyethylene gas pipelines in areas of possible earthquakes. It is revealed that the seismic load is the main load affecting underground gas pipelines. The critical ratio of the bending radius to the diameter of the gas pipeline is investigated. It is proved that with a bending radius of at least 25 pipe diameters, the pipeline retains its strength in areas with increased seismic hazard.

Keywords: underground gas pipelines, seismic activity, loads, bending radius, structural strength

Based on statistical data, the article presents a solution to the problem of finding an empirical function that establishes a link between the tourist flow and the proportion of the area of specially protected areas from the total territory of the island. For the analysis, data was collected on 14 islands with a developed tourism industry. Power functions are obtained for two groups of islands with different areas. The obtained dependencies make it possible, at the stage of urban planning analysis of the territory, to determine the permissible value of the tourist flow, which ensures tourist activity based on the principles of sustainable tourism. Using this function, the maximum value of the allowable tourist flow for the island of Socotra has been set, the development of which is focused on the tourism industry.

Keywords: urban development analysis, tourist flow, specially protected natural areas, correlation dependence, approximation, sustainable tourism

Based on statistical processing of various archival data on estate construction by rural landowners of the Kazan province, general information on the number of settlements where estates were built was collected, and the main periods of development and dynamics of this phenomenon for the period from the end of the 16th century to the beginning of the 20th century were identified. As a result of the study, materials were obtained on 438 settlements where landowners' real estate objects were identified. The specified data were summarized in a single table divided into four main periods: from 1557 to 1650 - the beginning of the development period; from 1651 to 1803 - the period of formation of the main territorial groups; from 1804 to 1875 - the period of the most intensive development; from 1876 to 1918 - the period of stabilization and transition to liquidation. These periods made it possible to identify 70 settlements actively involved in estate construction by landowners for more than 200 years.

Keywords: development dynamics, estate construction, landowners, Kazan province, quantitative indicators, periods of existence