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The purpose of this paper is to study network simulation and modeling software and determine which tools are most suitable for designing a corporate computer network of commercial enterprise. The permanent improvement of automation tools, the integrated implementation of information processing and transmission systems in the enterprise structure require knowledge of all the advantages and disadvantages of new technologies to the smallest detail, the ability to use them as intended and, most importantly, effectivel...

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...

In the precursory section of the paper, the authors succinctly present the Black Sea basin's oceanographic features with a focus on factors that can lead to naval accidents. The Black Sea basin is characterized, especially in winter months, by sudden storms, big waves, and winds, seriously affecting the ships and crews' safety. The said basin has also confined areas with pleasure crafts and commercial ships, offshore platforms with accompanying auxiliary fleet and underwater pipes and installations or shallow wate...

Continuous measurements of deformations of the Earth's crust make it possible to record changes in their character in several characteristic parameters. Such parameters include the amplitude, phase, and frequency of periodic oscillations, for each characteristic frequency separately, as well as random typical or atypical artifacts. All this information with proper processing can be used for various purposes, one of the most important tasks in this case is to reliably identify earthquake precursors. These studies r...

In today's world, shopping represents a significant part of everyone's life. The interaction between the customer and store staff has grown to be more critical than ever. To facilitate a pleasant and engaging shopping experience, we acknowledge a market gap and a real competition for developing innovative tools that can be used by both parties: the customers, which need their requirements fulfilled, and the store staff, that can use these tools to satisfy customers' needs further by targeting the correct audience....

Currently, particular attention is paid to the study of connection between geophysical phenomena and technogenic processes. At the same time, the structural parameters of the Earth?s internal structure and its core, change in natural characteristics of water basins as well as dynamics of oil and gas deposits are being investigated. This paper describes a new method for studying geophysical phenomena depending on the state of large water basins. With this purpose, we conducted a correlation analysis between astrome...

Geodynamic processes and seismic activity are considered to be the prime driver of horizontal and vertical movements of the Earth's crust in the Balkan Peninsula. One proven method for continuous monitoring of ground deformations is the use of data from active radar remote sensing. These data are the basis for the creation of interferometric images (IFIs) for quantitatively assessment the recorded ground movements of the Earths? surface within a fixed time interval. For this research a set of IFIs were created for...

Machine Learning (ML) is the study and the usage of the mathematical algorithms which can improve their performance without the need for human interaction. These algorithms are considered as a subset of Artificial Intelligence (AI). Machine learning algorithms use past data as input and produce new predicted values as an output. Machine learning algorithms have been used in many areas for solving an innumerable number of tasks. However, the various tasks need applying of different machine learning algorithms for o...

Ensuring the transition to advanced digital, intelligent manufacturing technologies, robotic systems, new materials and design methods, the creation of large data processing systems, machine learning and artificial intelligence are directly related to the widespread implementation and use of cyber-physical systems. One of the key technological trends that underlie cyber-physical systems is big data processing, process analytics, the introduction of the Internet of things, and improving information security. Most o...

The data warehouse in the information system is intended to reflect the changing part of the domain model. In classical information systems, this part includes data values, and the storage, implemented as a database, and the system itself can be considered static in time objects. Modern conditions for the functioning of information systems are characterized by the requirement for the possibility of modifying the functionality of the system at the stage of its operation. In this regard, not only data values, but al...

The article presents methodological approaches to the improvement of the environmental monitoring system. To increase the objectivity and to improve the visual aspects of data presentation during ecological monitoring, the authors proposed to involve remote sensing methods of the Earth and geoinformation technologies. The presented set of methods is effectively used for general, operational and background monitoring. The authors have developed an algorithm for monitoring the state of ecosystem components by remote...

The aim of the presented paper is to give a review of the classification of atherosclerotic plaques between two different input values; using computer image analysis and a visual assessment by an experienced sonographer. In the case of computer analysis, the echogenicity index (Echo-Index) is used. In the case of visual assessment, echogenicity of the plaques have been evaluated from histological patterns. In the case of computer image analysis, B-images have been processed. To computer image analysis, our develop...

The paper discusses issues related to the optimization and improvement of the quality of the process of developing information systems. In particular, the purpose of this work is to study the process of analyzing the activities of an enterprise. This work conducted a study on methods for extracting information about the activities of the enterprise. The study is showed that there is a set of methods to analyze the activities of the enterprise. Methods such as a round table, brainstorming, interviewing, observation...

We offer the conceptual model of the hybrid geographic information system built by using Kubernetes, Docker containers and cloud computing. Within the study, we conducted stress tests and velocity measurements in virtual environments. Applications deployed in containers show better performance when one needs to simultaneously run the same type of isolated compute nodes. The experimental results clearly demonstrate the advantage of using Kubernetes with Docker containers to build such systems, especially in case of...

This work aims at the creation of digital selenographic satellite maps (DSSM) using fractal geometry and multi-parameter harmonic analysis. The observational data for DSSM were produced by the ?Clementine?, ?Kaguya? and ?LRO? space missions. An electronic database on altimetry measurements was built and they were brought into the single reference system by robust modeling. Based on the produced data and the method of multi-parameter harmonic analysis, we developed a digital selenographic satellite map covering the...

In modern studies, the idea is formed that the system approach is a conceptual design, the background in which one of its forms is fixed in the form of a system and its basic abstraction. The existing specific types of systems and their basic abstractions are the result of empirical fixation of ideas about the system approach, fixation of the formed concept of the system approach in the form of one of the types of system forms: "... the representation of an object in the form of a system is nothing more than a tra...

This work focused on study fractal structures on Venus is performed on the basis of observations taken by the ?Magellan? spacecraft (NASA). The equipment of this artificial satellite allowed scanning almost the entire surface of Venus using a radar with synthesized aperture of S-band (12 cm) and a microwave radiometer as well as investigating topography by the special radar ? altimeter. The uncertainties in some data produced by ?Magellan? were filled by the information that had been collected before ? in ?Venera ...

Following the international procedures, aviation professionals are required to prove very high psychological and physical standards. There are plenty of factors which might affect a performance of aviation employees. A working environment of aviation personnel is constantly changing, and this variability of their tasks escalates a lot of stress, which further affect safety and quality of flights. There are a lot of stress relieving techniques exercised by pilots, prior they take off. Some of them are selfregulator...

One of the main processes of functioning of digital measuring systems is image analysis. For photogrammetric systems, such tasks involve searching, counting the number of objects of a given type, followed by determining their geometric characteristics. The main problem that impedes the direct application of methods is the provision of a given level of measurement error. Methods, depending on their specific combinations and input parameters, can give different results. This is due both to the quality of the image i...

Analysis of social networks is one of the promising areas of research. In addition to the development of a mathematical apparatus that allows processing the extracted data, it is of interest to identify new characteristics of user interaction. In the case of researching social networks, one of the important problems is the definition of a digital portrait of a user based on the consolidation and preliminary processing of open data from his profiles. To solve this problem, the authors previously proposed a model fo...

The article considers the issues of evaluating the quality and effectiveness of an information resource with Internet access dedicated to memorable places associated with the residency of famous Russian personalities. The authors noted that one of the problems is choosing the indicators and evaluation criteria that characterize the effectiveness and efficiency of museum activities, as well as the impact of museums on society. The following main functions of museums are highlighted: collection, preservation and doc...

The use of a qualified electronic signature has become more widespread in recent years, and one of the main prerequisites for this is the development of electronic services using a qualified electronic signature for authentication. Some of the services require additional entry of a username and password and they show that a qualified electronic signature complements the security of authentication by becoming the so-called "Second factor". All services provided by a qualified electronic signature in the browser are...

The article examines the issues of virtual reconstruction of memorable places associated with residency and activities of V.F. Voyno-Yasenetsky (Saint Luke the Surgeon) in the city of Tambov (Russia). Valentin Felixovich Voyno-Yasenetsky (1877-1961) ? a religious figure, archbishop, famous Russian and Soviet doctor, doctor of medical sciences and theology, winner of the Stalin prize of the first degree. In order to visualize individual objects of memorable places in Tambov, their three-dimensional virtual reconstr...

Most of the time, in assessing a situation where a leakage of combustible gas is involved, the volume of the room where the release occurs and the volume of the released gas is taken into account, thus resulting in an average concentration of the fuel gas applied to the entire volume of the room. In some cases, when the source of combustible gas is close enough to the source of initiation, or when air currents converge at the location of the source of initiation carrying amounts of combustible gas, the explosive m...

Application of image processing recognition in the agricultural field is a difficult and intensive task. Recent years developments of technologies such as GPUs (Graphics Processing Units) and the fast development of artificial intelligence algorithms allows the reliability of using computer vision technology to be used for recognition of plants, including weeds, ensuring the efficiency of intelligent agricultural systems. Computer vision technology uses a camera and a computer to identify and measure objects in th...

Academic rankings can be referred to as a tool of external evaluation of university performance, and a crucial role that the rankings play now in government decisions to fund university research around the world is undoubtful, despite all the ambiguity and skewness of rankings methodologies. Having said that the publication productivity and citation impact are important criteria of rankings evaluation, not only university management needs to be sure that the rankings trajectory is well applied, or incorporated int...