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Article discusses the problem associated with the aquifer intensive exploitation, using the example of a region located on the territory of the Caucasian Mineral Waters (South Federal District of Russia). Over the past decades, the mineral waters extraction volume has more than doubled. This was reflected in the distribution of natural vertical hydraulic gradients in the upper part of the hydrolithosphere. And, also, to the intensification of the descending flows and the influx of aquifers polluted by municipal wa...

The article considers the estimation and prevention problem of ecologically dangerous influence of technogenic noises generated by moving transport, such as heavy tracked and wheeled transport, railway transport. The influence on the people and the environment of a low-frequency controlled CV-40 seismic vibrator [1] used for seismological research is considered separately. The influence of vibrations located in the area of low and infra-low frequencies is estimated. The results of field records of technogenic nois...

We have proposed an approach to establish spatial patterns on the application of graphs theory. Traditionally, the theory of graphs is used in spatial studies to quantify the geographical position and its various aspects. Graph theory is a section of qualitative geometry, the differences of which are that it operates with dimensionless quantities, does not use the concepts of angle, and line length. It operates with spatial elements - points, lines, surfaces, volumes, and relations (connections) between them. Diff...

The article deals with the problems of designing multi-channel high-frequency signal generators for the transceivers of unmanned aerial vehicles (UAVs). It is proposed to use high-speed digital-to-analog converters to increase the output frequency and improve the noise characteristics of UAV transceivers. The possibility of using special operating modes used in modern high-speed direct-to-analog converters (DACs) for digital generation of broadband signals is shown. Mathematical models of noise characteristics at ...

The purpose of this report is to encompass and analyze the advantages of the creation, the implementation and transformation of software product in the production and processing of products. Several main conclusions have been made in the scientific report, with the general conclusion being that based on the computer program developed and implemented in practice, an easier method of work is ensured, while considering the specific pre-production and production processes, as well as processing operations in productio...

In this paper, the authors conducted information analysis of activities of Nobel brothers in the Tambov Region of Russia in order to discover and reconstruct associated memorable places. An important aspect of analysis is identification and detailing of objects suitable for virtual modeling and applying 3D modeling technologies for cultural heritage objects using an open source software platform OpenSimulator. It can be argued that in modern cultural environment there are favorable conditions for the use of virtua...

The article describes the LoRaWAN network. LoRaWAN is a communication protocol that provides long-distance communication with low power consumption. Long Range Wide Area Networks (LoRaWAN) is open-center access (MAC) layer technology designed for long-distance connections with a large number of low-energy devices. LoRaWAN devices in various network settings use the most modern network simulator (NS-3). First, one device and its mobility are introduced. Due to its properties, the protocol is very popular in the fie...

Extracting information from a text is an undivided part of modern NLP applications. Ontologies and semantic networks play important role in sense disambiguation problem, helping us distinguish concept nodes in text inputs. As we know, every language is always changing. Each generation of people adds something new to it, and new terms and word forms emerge while others become deprecated and people stop using them. Therefore modern linguistic ontologies have to store this information within a concept node. In this p...

Present paper is a brief story about Bulgarian efforts to integrate data, products and services in Bulgaria into a newly established scientific infrastructure named a National Geoinfomation Center (NGIC) and its efforts to assess and communicate the information about natural hazards and risks to the general public. We started two years ago with the ambitious goal of uniting our observations and research in the area of monitoring and investigation of the Earth’s interior and the near-Earth space. The instrumental u...

An important problem in solving inverse problems in seismology associated with determining the characteristics of a seismic source is obtaining a priori information about the propagation velocities of seismic waves. Along with such factors as the of external noise levels, the geometry of arrangement of the receivers, the parameters of the Earth model, etc., the degree of completeness of information about the velocity characteristics of the medium determines the accuracy of the inverse problem solution. It is espec...

Traffic congestion is an important problem in transport systems. The reason for traffic jams is the growing number of vehicles. It is objective and irreparable. Many roads do not have the ability to separate at different levels and have to cross. Most intersections use traffic lights to regulate traffic. Traffic light regulation is a non-stationary, non-linear problem under conditions of uncertainty. Most traffic lights nowadays use fixed time intervals. It is necessary that traffic lights monitor traffic flows at...

This article describes the peculiarities of developing a customizable chat bot. It reviews and compares approaches to developing a chat bot. It describes the features of using Software Development Kit (SDK), which can be easily implemented by a technician into a company's mobile application. Such a chat bot can be used in banks applications, as well as in any other applications which require assistance to the user in solving his/her problem. The chat bot will be able to solve typical user cases, but in more specif...

Risk management is increasingly seen as part of the concept of sustainable corporate development and improvement. It is a logical process or approach that aims to eliminate or at least reduce the level of risk that accompanies the implementation of company policy and achievement of organizational goals. Risk management is part of the managerial responsibility that bears every head of a business or public organization. That is why the issue of optimal risk management policy is particularly important. In this way, t...

The problem of studying the interaction of various geophysical (seismic, acoustic, meteorological) fields is considered in the context of prediction of geoecological risks generated by technogenic and natural phenomena. Early it was proved that meteo-dependent processes of infrasound propagation from explosions in the atmosphere can increase many times the ecological load on the social and natural environments. Such situations are observed in the open coalmines, test sites, and other objects where regular explosio...

Today's society encounters cyber attacks on the energy sector not only on a theoretical level but unfortunately also in reality. The total number of cyberattacks is still rising, despite the ever-evolving defense against them. The article contains an overview of the largest cyberattacks in history on the energy sector and ways to carry them out. A cyber attack is a situation where a hacker or their group tries to gain access to key information or elements of the infrastructure. These can be power plants, their con...

Adaptation of materials of Internet resources is the provision of relevant content with maximum consideration for the individual characteristics and needs of the user. Thus, the system developers are regularly tasked with showing users the information that meets their tasks and interests, paying attention to the moments that really have value for certain categories of users. This article is devoted to one of the options for solving this problem. The article discusses the construction of a matrix-graph model for pr...

When building new or upgrading existing control centers, ergonomists and designers strive to design solutions that improve operators' working conditions, including work comfort, and reduce their psychological burden stemming from the complexity of their activities and the high responsibilities they bear. However, meeting the needs of operators, while adapting to space constraints or specific technical requirements for the control system, is very difficult. Coping with this difficult task, therefore, requires a res...

The existing approach to organizing big data processing requires the analyst to understand the set of initial data. This understanding presupposes the presence of knowledge not only about the list of available characteristics, their fullness, noisiness, etc., but also about the nature of their occurrence - the semantics of the data. Big data semantics can be represented using context. The context in the project refers to the activity in which the data is used or because of which was obtained. Applied scientific ap...

Stakeholders and project activities are related to the typical and usually necessary project components of: ideas, financing and implementation. Our aim is to illustrate useful steps in problem analysis, progressing from system characterization (analytical phase) to predictive modeling (synthesis phase). System analysis and multi-criteria evaluation are used to identify alternative scenarios regarding project goals. The model suggests that “public awareness” is best promoted in projects with a more balanced repres...

In 2011, we developed our application for B-imaging based on binary thresholding algorithm in a selectable Region of Interest. This application has been used in many studies focused on ultrasound B-imaging in neurology; primarily for substantia nigra echogenicity examination and also for some different brain structures, e.g. mediotemporal lobe atrophy investigation. One of principal output value is an echogenicity index which is used as a marker of the echogenicity grade. Many published studies showed that is well...

The paper examines the influence of vegetation season on canopy height models (CHM) derived from airborne laser scanning (ALS) data. ALS data were captured during the leaf-on (September 2011) and leaf-off seasons (April 2012) on the territory of the University Forest Enterprise of the Technical University in Zvolen, Slovakia. An automated procedures for deriving high-resolution digital terrain models (DTM) and digital surface models (DSM) were developed. CHM was calculated as the difference between DTM and DSM. CH...

The article deals with the issues of virtual reconstruction of memorable places associated with the life of M.V. Aseev in the Tambov province (Russia). Mikhail Vasilyevich Aseev (1858-1933) was a major Russian landowner, entrepreneur, influential industrialist and philanthropist. In 3D modeling programs (SketchUp, Blender) three-dimensional models of objects (buildings, utensils, etc.) were built according to known parameters (size, material), including both existing objects and lost or partially destroyed ones. U...

The universities in Bulgaria operate in a very dynamic environment. The Ministry of Education and Science (MES) changes annually the requirements that their systems must meet. Changes can be small and affect only parts of the information systems in use or impose fundamental changes. To cope with this challenge, each university has a choice - either to move to a high level of digitalization or to maintain a minimum digitization of processes, so that no correction is needed in them, thus increasing the hours of work...

Most modern software systems use dozens of traffic types, which leads to the transmission of large volumes of data of three main types via communication channels: audio, video, and computer data. Such software systems are built on the basis of multiservice computer networks in which all data is transmitted over a single communication channel, which makes it possible to use common standards and simplifies the construction of a network capable of serving a large number of users. Thanks to these features, multiservic...

Modern unmanned aerial vehicles (UAVs) are used to perform a wide range of flight tasks (military and civil), implemented both in autonomous flight mode and by remote control. One of the advanced technologies for their use is the organization of flying sensor networks (FSN). The quality of information exchange in FSN, widely used for monitoring of various natural and technical objects, depends significantly on the conditions of signal propagation and the level of external interference. A promising method for impro...

The aim of the article is to identify, analyze and evaluate the scientific problem of the communication interface of workplaces for air traffic controllers in training in the training facility TU / LF Kosice, especially in process and radar air traffic control, in the context of instructor-student and pseudopilot communication within the planned set of specific LETVIS workplaces. The formulation and description of a scientific problem will enable the determination of a methodology for researching the issue by scie...

The article deals with the issue of accidents associated with hazardous substances, their prevention. Modeling of these accidents was chosen as a form of prevention. The production of dangerous toxic substances is currently growing, especially in the industry. The response to this trend is to introduce safer technological processes and preventive measures. These measures serve to prevent or at least reduce the risk of accidents and thus the escape of dangerous substances. To implement prevention, effective measure...

The heat transfer from the source of initiation to the adjacent surfaces is a physical phenomenon worth considering in the process of analyzing the fire. This complex phenomenon describes how the transport, exchange, and redistribution of the thermal energy are carried out and is based on the theoretical knowledge that describes the initiation and fire evolution in time. Flames transfer heat from nearby surfaces through two physical processes, convection, and radiation. A third mode of heat transfer is conduction,...

The article builds on scientific work, which in the framework of the in-the-go analysis has identified a practice-making problem for the performance of air rescue services in the field, with an emphasis on the network of landing areas, their information (technical) security and the risks associated with the decision-making process for conducting the flight under minimum time disposition conditions for the safe achievement of the landing area and the rescue helicopter landing itself on the selected area. The emerge...

In this paper we propose the criteria of an information model that will allow, based on input expert data, to derive a risk assessment of unmanned aerial vehicle (UAV) flights for mountainous environmental studies. To create an information model, it is necessary to develop a mathematical model of risk assessment and informative content of the model within the framework of the problem under study. For the model input, there is a space of mountainous terrain for which we define set of criteria as a threat to safety ...

The Analytic Hierarchy Process (AHP) is considered a flexible and efficient mathematical tool in approaching the complex decision processes. The AHP method allows the reduction of the complex decisions to comparisons by pairs and, finally, to the synthesis of the results, contributing to the capture of the subjective and objective aspects of the decision. Also, the AHP method allows the check of the coherence for the evaluations made by the decision makers, thus leading to the reduction of the prejudices in the de...

The paper presents a mobile GIS technology for monitoring spatially distributed emergencies. Mobile GIS technology is a combination of hardware, software and information tools that provide cartographic modeling, integrated representation of geographic and attribute data, as well as the collection, storage and analysis of geospatial information. Mobile GIS technology is designed to solve the problems of monitoring the natural and man-made environment, as well as forecasting the processes of emergence and developmen...

The article deals with development of virtual tours to memorable places associated with the residency and activities of famous personalities of Russia using specialized equipment (Insta360 Pro panoramic camera with "fish-eye" lenses with the viewing angle of 200° and 3DVista Virtual Tour Pro software). When creating virtual tours, it was made possible to move from one time period (present time) to earlier historic periods for a memorial place under study, which allows user to independently conduct visual analysis ...

In this paper, a computational method to predict the corrosion resistance of some sintered iron alloys subjected to a thermochemical treatment is analyzed. The proposed materials are obtained by powder metallurgy (P/M) route. The raw materials are prepared from atomized pre-alloyed iron base powders. The compacted samples were obtained by cold pressing using conventional route. The powders were compacted at a pressures of 400 and 600 MPa. After pressing, the green compacts were sintered in a laboratory furnace. Th...

Scientific and technological development is an important requirement to ensure the development of geodesic and cartographic fields. At the same time, science and technology have also been identified as key in socio-economic development in the context of the world applying the great achievements of the Industrial Revolution 4.0. Technological changes in measurement and mapping such as satellite positioning technology, digital technology, network technology, etc. have been changing methods of receiving, processing i...

Currently every day the need for obtaining information from satellites and quadcopters is increasing. Various services and ordinary users have a need for automated processing of received information from satellites. However, automated processing raises a number of problems: different illumination of objects, their difference in different times for example at different times of the year, soil changes, river spills and forests before and after fires etc. However, topology allows you to preserve the shape of feature ...

Currently, information technologies used for emergency management are a set of separate local processes that have a narrowly specialized focus. Often they are not integrated into a single management system and do not have information interaction. Integration of information technologies into a single management system will create a single information environment that combines the resources of various systems for the purpose of operational processing of information about emergencies and response coordination. The pa...

The capabilities of existing intelligent decision-making systems are very limited, so for the successful solution of a wide class of tasks based on unmanned aerial vehicles (UAVs) reliable communication with the group of aircraft is required. For communication between individual UAVs, as well as UAVs with a ground station, Flying Ad Hoc Networks (FANET) and flying sensor networks (FSN) are used. Known works devoted to the development and research of such networks consider predominantly radio communication at the p...

Currently there are many spatial structures for storing information about raster and vector maps. There are many algorithms for calculating map information, each of which is applicable to a specific industry. Now there is a problem of the lack of a universal algorithm for obtaining information about the maps, which will allow you to store its scale, time of image creation, deformation, various rotations and other topological features of objects in the images. The article sets the task of developing a method for ex...

The article presents a novel research project aimed at analysis of historical processes at memorable places of the Tambov region associated with prominent Russian personalities using original technologies for analysis, data processing and creation of virtual reconstructions of cultural and historical heritage. It includes: development of the technology for creating 3D models of cultural heritage objects for virtual reconstruction of historically significant territories; development of the technology for analysis o...

The article deals with the development of geoinformatics procedures accelerating and simplifying the application of the scattering model SYMOS?97 (Gaussian model), for selected pollutants in the open air to an area with a large number of sources and reference points. They are compared here with real measured concentrations of these persistent organic pollutants. One of the chapters illustrates the spatial and temporal variability of the ratios of the contributions of individual resource sectors to the total air po...

In the early decades of the 21st century, the world faced with an active development of information technologies, which is accompanied by an instant change of network protocols. Nowadays it is difficult to imagine the information infrastructure of a modern company without complexes of accounting programs, decision-making support, expert systems, knowledge bases, etc. All of them need reliable and high-quality engineering support. With the growth of information needs of society, the requirements for the quality of ...

P colonies (see [2]) are a well-established version of the P systems (see [3]), the computational device based on membrane computing. One branch of the research of the P-colonies focuses on the possibility to consider the two-dimensional environment, in which the agents act, and the 2D P colonies (see [1]) were introduced. 2D P colonies showed to be suitable for the simulations of various (not only) multi-agent systems, and natural phenomena, like the flash floods. The Grey wolf algorithm (see [4]) is the optimiza...

The solution of the gravity direct problems performs a crucial impact on the results of investigation of the gravity anomalies in oil and gas fields. The direct problem of gravimetry itself means that we have to determine the analytical characteristics of the gravitational field from a set of specified parameters of the geological medium (such as an average depth, an excess density, coordinates of anomaly sources, and other medium parameters). Evaluation of the distribution of similar parameters of anomalous bodie...

Based on the overview of existing industrial safety technologies and new electronic components on the market, the Concept outlines the new requirements to key segments and sub-systems of the System for personnel and mobile machinery positioning in mines. The concept of the system?s functioning is focused on building a highly robust fail proof adaptive system for data collection, processing, transmission and display, as well as for process management. The system for positioning of personnel and mobile machinery in ...

It is well known that the process of inference is generally non-deterministic. Therefore, to develop effective inference algorithms, the problem of managing the inference search is very relevant. The solution to this problem is complicated by the fact that the predicate calculus is unsolvable. There is no method for establishing general validity or its absence for an arbitrary formula for calculating predicates. Nevertheless, if the formula for calculating predicates is valid, then there is a procedure for establi...

A professional aviation meteorological service has been established in the territory of the Slovak Republic, the stations of which are unevenly distributed and do not cover the whole territory of Slovakia for information purposes. The addition of meteorological stations, whether mobile or installed at general aviation airports, would largely eliminate the occurrence of such "gray zones" without information coverage. Inexpensive meteorological stations installed at general aviation airports will help to solve the m...

The report presents the results of studies of the characteristics of the deformation signal during the preparation of regional earthquakes according to laser deformation measurements in the adit of the Talaya seismic station (Baikal region). Studies have shown a number of features during the deformation process on the eve of regional earthquakes. The deformation data recorded on the seismic station (? = 51°40`48``N, ? = 103°38`24``E) during the period from 1994 to 2015 were used as experimental material. During th...

The aim of this article is to create a risk analysis of selected school facilities which can be an auxiliary tool of security solutions against terrorism. Most terrorist attacks are focused on so-called soft targets - crowded places, which are not secure against violent attacks. Furthermore, attacks on school facilities abroad are frequent too. A wellprepared risk analysis is a necessary method to detect weaknesses and strengths of the security of a soft target. The university in Zlin in the Czech Republic was cho...

The paper presents our findings during the adoption of e-learning in the National Geoinformation Center of Bulgaria (NGIC). It details the approach used to build a set of functionalities that produce and deliver online educational products to the customers of NGIC. The Center is a consortium of the national providers of Earth observation data with a purpose to design and co-develop integrated information products. NGIC's information system is being developed since 2019. It is built adopting the IT service manageme...