The paper examines the case of IntraService incident management system implementation in an organization operating in the digital infrastructure segment. The study focuses on the assessment of changes that occurred in the functioning of the support service based on quantitative and qualitative indicators. The method of comparative analysis of operational parameters before and after the launch of the system is used, accompanied by expert interpretation of internal processes.

Keywords: implementation, system, incident, support, automation, platform, organization, infrastructure, process, integration

An integrated approach to the numerical study of forced oscillations of a vehicle moving over an uneven road surface is proposed. The method combines 3D parametric modeling in SolidWorks with spectral-correlation analysis in MATLAB/Simulink. A multibody CAD model of a vehicle with independent suspension for all wheels was developed, including the main frame, lever suspensions with nonlinear elastic-damping elements, wheels, and the powertrain. The road microprofile was formalized using a correlation function implemented as a random process in MATLAB and imported into SolidWorks as a spatial profile. Dynamic analysis was performed using the SolidWorks Motion module. The results show that the vehicle's suspension exhibits a filtering effect, attenuating high-frequency disturbances from the road and shifting the dominant frequency of the center of mass oscillations to a lower range (~0.4 Hz). The rapid decay of the autocorrelation function indicates effective damping. This approach allows for efficient virtual testing without costly physical experiments.

Keywords: vehicle dynamics, road microprofile, multibody modeling, SolidWorks Motion, MATLAB/Simulink, spectral analysis, autocorrelation function, suspension filtering effect, forced oscillations

This paper provides a survey of metrics used to assess the quality of images generated by generative models. Specialized metrics are required to objectively evaluate image quality. A comparative analysis showed that a combination of different metrics is necessary for a comprehensive evaluation of generation quality. Perceptual metrics are effective for assessing image quality from the perspective of machine systems, while metrics evaluating structure and details are useful for analyzing human perception. Text-based metrics allow for the assessment of image-text alignment but cannot replace metrics focused on visual or structural evaluation. The results of this study will be beneficial for specialists in machine learning and computer vision, as well as contribute to the improvement of generative algorithms and the expansion of diffusion model applications.

Keywords: deep learning, metric, generative model, image quality, image

The article considers the assessment of the suitability of solar radiation data from ERA5 atmospheric reanalysis for forecasting problems in the northern territories. The experimental site of the Mukhrino station (Khanty-Mansiysk Autonomous Okrug), equipped with an autonomous power supply system, was chosen as the object of analysis. A statistical analysis of the annual array of global horizontal insolation data obtained using the PVGIS platform has been carried out. Seasonal and diurnal features of changes in insolation are considered, distribution profiles are constructed, and emissions are estimated using the interquartile range method. It is established that the data are characterized by high variability and the presence of a large number of zero values due to polar nights and weather conditions. The identified features must be taken into account when building short-term forecasting models. The conclusion is made about the acceptable quality of ERA5 data for use in forecasting energy generation and consumption in heating systems.

Keywords: ERA5, solar radiation, horizontal insolation, the Far North, statistical analysis, forecasting, emissions analysis, renewable energy sources, energy supply to remote areas, time series, intelligent generation management

The article describes the features of using a two-layer membrane with the use of injection control fittings in the installation of underground waterproofing. The circumstances preventing the mass application of this technology have been identified, the main part of which is related to the increase in the cost of work at the initial stage. However, the use of the technology is justified because it allows you to localize the location and period of leakage, has increased maintainability and durability.

Keywords: waterproofing, modern waterproofing technologies, double-layer membrane, injection control fittings

The article discusses issues related to assessing the quality and safety of road traffic. An analysis of the accident rate on the roads of the southern part of the Far East has been performed. The main causes of traffic accidents are considered. An analysis of the quality of road marking has been performed and an assessment of its durability has been given, depending on the operating conditions. Recommendations for improving the durability of road markings are given.

Keywords: highway, pavement, horizontal markings, traffic safety

The article is devoted to the method of calculating the effective frequency of the load impulse FWD, which allows establishing a correspondence between the laboratory-determined viscoelastic characteristics of asphalt concrete layers included in the road pavement and the modulus of elasticity calculated by backcalculation based on the deflection  bowl determined in field tests using FWD. The article proposes an algorithm for finding this frequency, presents the results of its calculations, and compares the elastic moduli obtained in the laboratory and by the results of the backcalculation. The conducted numerical experiment confirms that for the deflection cups generated within the viscoelastic calculation model, the difference in modules does not exceed 8%. At the end of the work, ways are proposed for the practical application of the calculated parameter and further improvement of the method on real deflection  bowl obtained on  road pavements.

Keywords: dynamic loading system, road surface, deflection bowl, asphalt concrete, elastic modulus, relaxation modulus, AMPT test, master curve, backcalculation, effective pulse frequency

The results of studies of the strength properties of plaster solutions with vermiculite on a mixed binder using a multifunctional additive D-5 are presented. A slight acceleration of the setting time of solutions with a multifunctional additive D-5 was found, while the bending and compressive strengths of the solutions did not change significantly after 2 hours and 28 days. Replacing part of the expanded vermiculite fraction 0 – 0.315 mm with volcanic pumice fraction 0 – 0.315 mm in the construction mortar allows to significantly increase their strength characteristics and reduce the cost without a noticeable increase in density. Expressions of the dependence of the compressive strength of the mortars on the calculated total porosity are obtained.

Keywords: construction gypsum, Portland cement, volcanic pumice, expanded vermiculite, D-5 multifunctional additive, plaster composites, compressive and bending strength

The article is devoted to assessing the influence of possible inhomogeneities in the layers of road pavements on the results of backcalculation of elastic moduli based on testing data of falling weight deflectometres (FWD). The article discusses the influence of different locations of theoretically specified inhomogeneities of structural layers within the roadway. Additionally, the influence of the location of the edge of the pavement on the results of calculating elastic moduli by backcalculation is considered. The conducted numerical experiment confirms that possible inhomogeneities of the road pavement can significantly influence the results of reverse calculations, and as a consequence, the decision-making on the appointment of repair measures. The boundaries are also determined at which the presence of a shoulder with a pavement design that differs from the roadway significantly distorts the results obtained. At the end of the work, ways to practically take into account inhomogeneities and further improve the method of inverse calculation of the elastic moduli of non-rigid road pavements are proposed.

Keywords: dynamic loading system, road pavement,structural layers, deflection bowl, asphalt concrete, elastic modulus, backcalculation, heterogeneity of layers, roadway, roadside

The calculation of wind loads on curtain facades and their fastening elements for high-rise buildings and structures using engineering methods and various numerical techniques remains an important task to this day. The corner sections of the building, where the greatest negative wind pressure occurs, are of particular interest. Incorrect calculation of wind suction can lead to the separation of panels during strong winds. The article calculates the peak wind load using a numerical method for a rectangular building with an aspect ratio of 0.6. Numerical calculations of the two-dimensional flow around the building profile in the ANSYS Fluent program using the k-e Realizable turbulence model were used to obtain the coefficients of drag, lateral force, and the distribution of the pressure coefficient at maximum lateral force. The calculations showed that the wind suction at the edge of the building exceeds the standard value by approximately 30%. The results obtained in the article should be taken into account when designing the facade.

Keywords: peak wind load, wind suction, rectangular buildings, peak negative aerodynamic pressure coefficient

The article discusses the task of detecting malicious attachments in emails used in targeted cyber attacks. An approach based on the combined use of text and file attributes of messages using machine learning methods is proposed. The models of logistic regression and the random forest method are compared according to the main classification quality metrics. Experiments on a synthetic dataset have shown that logistic regression provides a higher completeness of detection of malicious attachments, whereas a random forest is characterized by a higher classification accuracy. The results obtained confirm the effectiveness of the hybrid approach and the possibility of its integration into email protection systems.

Keywords: machine learning, targeted attack, email, phishing, malicious attachment, attack detection, information security

The article presents the results of laboratory testing of a precast lintel made of D600 aerated concrete blocks fastened together using assembly adhesive for laying aerated concrete blocks and three reinforcing bars, two bars in the lower zone with a diameter of 20 mm A400 and one bar in the upper zone with a diameter of 16 mm A400. When testing the beam lintel, 3 loading schemes were assembled, each of which was a beam hinged on concrete supports. The obtained data were analyzed. Based on the test results, destructive loads, the nature of destruction were determined and the resulting deformations were assessed. The nature of destruction is similar to that of reinforced concrete beam structures with insufficient transverse reinforcement; destruction in all tested prototypes occurs in the support zone along inclined sections. The bearing capacity of aerated concrete lintels made of piece material is sufficient for use in construction practice.

Keywords: testing, bearing capacity, reliability, deformability, gas blocks, lintels, destruction

This paper explores the content-based filtering approach in modern recommender systems, focusing on its key principles, implementation methods, and evaluation metrics. The study highlights the advantages of content-based systems in scenarios that require deep object analysis and user preference modeling, especially when there is a lack of data for collaborative filtering.

Keywords: сontent - oriented filtering, recommendation systems, feature extraction, similarity metrics, personalization

The paper is devoted to the problems of MicroGrid technology development, consisting in the construction of a distributed energy supply system based on autonomous energy generation sources. The objective of the paper is to construct models and procedures for decision support in multi-criteria selection of combined autonomous energy generation projects from a large number of possible alternatives. To achieve the objective, a morphological analysis of the subject area was carried out (using the method of systematic field coverage by F. Zwicky), as a result of which a space of alternatives of combined energy sources was constructed. A group ordering of criteria was carried out based on their expert assessment. Sequential application of the modified analytical network method using ordered groups of criteria made it possible to limit the number of criteria taken into account at each stage (by the number of criteria in a group) and consistently reduce the number of alternatives (considering only a few of the best alternatives of the previous stage). The proposed multi-stage procedure makes it possible to reduce (at each stage) the dimension of the supermatrix of the analytical network method and, thereby, reduce the time complexity of the procedure compared to the direct application of this method. The use of the proposed procedure makes it possible to consider a larger number of alternatives taking into account a larger number of criteria (compared to traditional methods of decision support), and, therefore, allows for an increase in the level of scientific validity of technical and economic decisions when designing MicroGrid systems

Keywords: MicroGrid, autonomous power system, decision support, analytical network method

This article highlights the use of tethered balloons in the construction of high-rise buildings, where the use of cranes or helicopters is not always advisable due to the technological features of the structures being built, or for economic reasons. The design scheme of a balloon system capable of mounting high-rise structures, in particular industrial chimneys, is described. Examples of the installation of high-rise pipe structures are given. The basis of theoretical approaches is given to determine the characteristics of the shell as the main component of cargo balloon carriers. A method for determining the volume of a balloon is given, as an important element in the balloon shell design.

Keywords: balloon crane, construction of high-rise facilities, high-rise installation, balloon system, equation of equilibrium of a balloon crane.