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In celestial mechanics, when describing the dynamics of celestial bodies, as a rule, two approaches are used: numerical and analytical. The numerical approach began to develop from the middle of the 20th century, when powerful computers appeared. He gives high-precision ephemeris and the theory of rotation of celestial bodies. Analytical methods began to be used from the end of the 19th century. Thinkers of that time developed powerful mathematical tools that allowed obtaining celestial bodies coordinates with the...

The task of the work is to improve the quality of digital image processing in vision systems by developing new features based on the use of fractal theory in conjunction with fuzzy logic and the theory of fuzzy sets. At present, the systems of technical vision are actively used in many fields of science and technology. The most important part of any such system is the software, whose task is to process the information received. However, the overwhelming majority of digital image processing algorithms are based on ...

Multi-access Edge Computing (MEC) is a cloud technology that converges telecommunication and computing capabilities in radio access network. The research and standardization activities for enabling advanced mobile edge services are ongoing with diverse challenges yet to be met. A key area is the development of Application Programming Interfaces (API) that enable application to acquire mobile edge resources and simply and efficiently to manage them. Bandwidth Management Service (BWMS) is a mobile edge service that ...

The El Nino-Southern Oscillation (ENSO) plays a key role in the interannual variability of the global climate. Its prediction and recognition has been a big challenge to the atmospheric and ocean science modeling community despite significant advances in understanding, improved models, and enhanced observational networks. The present study proposes a new approach by using the support vector machines (SVM) classification model of machine learning algorithm to identify and possible predict the future ENSO events. Th...

The quality of the operation of broadband wireless computer networks is largely determined by the mechanism of an ordered centralized poll of terminal stations, called polling. The models of polling systems adequately describe the operation of broadband wireless networks under the control of Wi-Fi and Wi-MAX protocols with a centralized coordination function (PCF). Despite the complexity and high cost, the equipment supporting centralized management most effectively uses the most valuable resources of a broadband ...

The presented paper is focused on evaluation of progress stability of atherosclerotic plaques which were examined using B-MODE during at least 5 years. For this study have been examined total of 482 patients. For each patient are stored data of atherosclerotic plaque separately in left and right carotid artery. The goal of this study is to observe progress of the plaque width in transversal section. The width has been measured using diagnostic ultrasound with resolution 0.04 mm; measured width has accuracy of 0.1 ...

This paper presents a comparative study based on numerical and experimental results, regarding the single lap joints (SLJs) between pultruded glass fibre reinforced polymer (GFRP) composite elements that are bonded with epoxy adhesives. The main aspects that were investigated by experimental and numerical approaches consisted in the characteristics of the failure mechanisms and the strain distribution along the bond length at different loading stages. For the experimental program 25 specimens were prepared by vary...

Additive manufacturing is used in multiple industries to create prototypes, visual models and objects with complex geometries. Being able to fabricate an object layer by layer, additive manufacturing offers the possibility to create objects with embedded, non-assembly joints. With Fused Deposition Modeling (FDM), one of the most common and accessible 3D printing processes, minimizing joint clearance for models with non-assembly joints presents a challenge, especially in the case of consumer-grade desktop machines....

Deformation analysis represents an actual and important theme, therefore methods for improving the tracking and analysis process of deformations, both for constructions and for lands, as well as diminishing the necessary time for deformation analysis, are the main concerns for the specialists and not only. When it comes to major constructions or constructions of particular importance, deformation analysis proves to be an extremely important tool. The results of the analysis can be used in decision-making systems f...

The solution of the problem of formalization of document flow processes with the help of the proposed model of multilevel graphs of information processing has considered in the article. Despite the significant development of machine data processing technologies, the theoretical basis for their application and adaptation to the architecture of electronic document management systems is poorly developed. The model of multilevel graphs of information processing which is formalize a structure of document flow of the or...

Geoportals has become more significant and more common communication platform, used between institutions, companies and clients. The most important feature of mapping portals is sharing of spatial data to a wide audience quickly and easily. However, despite of all benefits accrued through their use, the popularity of geoportals is still too small. Probably the reason for that is the conviction of the high cost of implementation, or the lack of knowledge about the possibilities of presenting spatial data in this fo...

The Fourier Transform Infrared (FT-IR) spectroscopy is one of the suitable experimental tools for analysis of urinary calculi constituents. However, interpretation of infrared spectra for quantifying urinary calculus constituents in mixtures is difficult, requiring expert knowledge by trained technicians. The development of automated methods for determining the composition of uroconcrements is very important since it can facilitate the determination of the factors which influence the occurrence of calculi in urina...

This article presents the high risks of exploration and mining of coal deposits for coal supply to hard-to-reach regions of North Yakutia (North-east of Russia). It?s caused by a lot of factors complicating and cost-increasing all process of development of the deposits from exploration of georesource to coal combustion of consumer remote from coal mines for thousands of kilometres. Special geoinformation systems is created and developed to improve the level of technological and organizational decisions. It is base...

During field work and best practices it is imperative to create a good working environment that is as easy and convenient to our interests and needs but with a higher data security. Maintaining and accuracy of data during field work is just as important as the samples to be taken. For this reason and due to internet access to almost every working region we have created a Mobile Application through which any sample that will handle it automatically will save the data and it called GSKSoft 1.0 (Geological Survey of ...

Geological structures be of great control groundwater flow and accumulation of groundwater, and should therefore be taken into account in studies related to groundwater studies. This study attempts to investigate the impact of geological structures on groundwater flow and groundwater quality in Al Jaaw Plain, United Arab Emirates. A set of thematic maps derived from digital elevation model (DEM), Landsat images, and ALOSPLAS SAR images were enhanced by applying Sobel filter with 10% threshold and equalization enha...

Paper focuses on methodology for preprocessing of transactional data from public transport system the in region as administration unit of the Czech Republic. The aim is to present synthetic information in GIS information system. Necessary data sources are defined and evaluated. Target group of users are those who plan development of public transport system. Information covering state of each bus or other mean of transport (number of passengers categorized by tariffs between any stops of the bus line) and activitie...

Laser systems are widely used for measuring the most important physical values with the highest accuracy. In particular, laser measuring systems are used to identify earthquake precursors in monitoring tidal rock fluctuations. In many cases, signals from laser measuring systems contain noises that need to be filtered out. The signal component in this case has the form of a harmonic oscillation, the frequency and phase of which change and these changes carry information about the measured quantity. This signal shou...

In the article, the authors provide the analysis of the industry state in the field of software and hardware development on the FPGA basis. The primary emphasis is on high-level synthesis (HLS) tools, which allows making a custom design by a non-RTL engineer. The key factors limiting the extensive introduction of HLS in the industry are determined: in most cases is not allowing to get a good solution without an understanding of target microarchitecture and synthesis method; too complicated and unpredictable tool b...

This paper is about how to build a cheap modern temperature control system on an existing manufacturing system. The authors designed and implemented the control system to a tunnel type furnace for burning bricks used in constructions at SICERAM S.A. Company, Sighisoara, Romania. The bricks manufacturing phases are described in order to help the reader to understand the process complexity and the graph of the entire loading/unloading process is shown together with the tunnel furnace schematics. Then, the graphical ...

The geometric models of wireless sensor networks are analysed. The selection conditions of an optimal network model are proposed. To improve information security measures, the visualization method of changing the signals parameters with consideration of the number of information nodes and their location in space is developed. The development and advanced use of wireless sensor networks require constant improvement of their reliability, durability, and performance as well as a high level of information security. Th...

Simulation of biological processes with the aid of computing techniques helps to model physiological processes, to create mathematical models with the computer support. Starting from experimental data difficult to be obtained, we can do calculation algorithms to identify the variation functions of the processes that are to be simulated, then to interpolate in order to fill them in the missing data collection. Having the variation parameters (input data): time, temperature, dry substance, a software product (output...

Utilization of methods of building information modelling in the area of sustainable regional development becomes increasingly the topical issue with time. In many countries of Europe, this has even become part of their legislation. This article deals in particular with advantages and disadvantages related to utilization of the method of building information modelling in the process of decision-making on further exploitation of the region including monitoring its current state. At present time, there is sufficient ...

Safety monitoring is of particular importance for building structures at the end of their lifetime what could endanger the health and lives of people. The use of geodetic robotic measuring stations enables the automated acquisition of coordinate data on the spatial position in the key locations of the monitored building construction and from them to evaluate geometric deformations in real time. This concerns the monitoring of large roof structures of sporting arenas, particularly in winter under snowfall impact, o...

The thematic deals with the development of data model for the sustainable management of mineral resources in Slovenia. In the paper the design of the conceptual, logical and physical data modelling is presented, and as its result, an entity-relationship (E-R) data model shown. The transfer of archive data to computer environment and the construction of final application allow the user a simple overview of data and various analyses of them. Data model of mineral resources of Slovenia comprises over a hundred tables...

This research belongs to one of characteristic traits of human livelihood, which connected to mass traumatism in consequence of catastrophes caused by nature or technological activity. Data and knowledge bases of proposed system consist of precedent information, accumulated for wide range of geoinformational conditions of emergency situations, different symptoms and features that affect human organism, extent of influence and positive experiences of giving urgent help to sufferers. Optimal routes and required mean...

Technical diagnostics is a science discipline that provides sufficient scope for different scientific methods and approaches. Objects of technical diagnostics are simpler or more complex technical devices. The purpose of technical diagnostics is to provide a sufficiently accurate estimate of the state of the technical equipment, which is of importance in their maintenance. In this regard, some modern sophisticated methods, based on artificial intelligence, are offered. A system approach is of major importance in t...

The role of information plays in recent years in accounting. IT tools have been eveloped that provide access to a wide range of recipients for information, processing this information, and support management groups in the enterprise. The aim of the article is to present the use of online tools in the field of controlling in the company and their role in data processing and information transfer for the management. The article also presents the role of online tools in business in general.The applied research methods...

The purpose of this study is to compare different classification techniques which are Maximum Likelihood Classification (MLC), Support Vector Machine (SVM) and Random Forest (RF) for lithological classifications in the western part of Antalya province. During the study, main data source was used as Terra/ASTER image data. The study area (Western Antalya) contains eight different lithological units (i.e. limestone, travertine, peridotite, m?lange, sandstone, chert, clastic, and alluvium) which are identified in 1:2...

The object of research is making the statistical modeling software package for analysis space observations. In particular, the potential fields of the planets, the topography and gravitational fields are studded. It should be noted the fields of the terrestrial planets are still poorly understood. In the past decade data requiring precision machining have been accumulated for many planets of the Solar system. The purpose of research is improving the accuracy of the mathematical description and mapping of potential...

In the context of urban planning, it is very important to estimate the nature of the roof of every building and, in particular, to make the difference between flat roofs and gable ones. This analysis is necessary in seismically active areas. Also in the assessment of renewable energy projects such solar energy, the shape of roofs must be accurately retrieved. In order to perform this task automatically on a large scale, aerial photos provide a useful solution. The goal of this research project is the development o...

The role-oriented concept of programming is becoming more common in recent times. Expanding the traditional object-oriented paradigm, it allows us to apply a more flexible approach to the development of the information system and simplify the task of the developer. The use of role-oriented structures in modern applications raises the question of storing them in a database. The task of extracting homogeneous semantic entities from structured documents has a high potential for solving with the use of roles or their ...

The amelioration fund of Ukraine is 5.4 million hectares. Significant areas of these lands are used by special drainage-modular systems with vertical and horizontal drainage. Such drainage is a system of vertical or horizontal fluid drain storage, located in a parallel way. These systems can be used to inject micro- and nanoparticles of sorbent or as filter-traps for already used sorbent particles. Therefore, a fundamental understanding of the processes of mass transfer in a saturated porous medium in the presence...

Nowadays the conditions for admission to higher education institutions in Russia can allow centralizing the procedure for competitive selection of applicants across the country to increase the clarity and publicity of this process concerning applicants, as well as to reduce the universities expenses for the admission campaign organization. The federal information system for providing Unified State Exam and admission can become the heart of such centralization, but at the present time there are no algorithms for co...

It takes adequate IT tools to implement and perform information processes in an organisation. Such tools can be developed by means of popular and frequently used programs, such as spreadsheets. The tools created in spreadsheets may be consistent with the author?s signature concept of Microtools Based on the Relational Data Model (MiRel). This concept delivers specific solutions intended for representation of identified entities and ensures integrity of both data and the assumed reports and collations assumed to be...

The article deals with the modeling of the structure of the e-learning website with the possibility of changing the user interface in accordance with the information needs of users. The most popular content management systems (CMS) and learning management systems (LMS) have many necessary features, including using an uncluttered modern editable interface and configurable LMS front page of the e-learning course. But, as a rule, these systems do not contain the component that would be responsible for the ability to ...

Methods of deductive inference that are various modifications of the principle of resolutions are quite effective in logic. The results and justifications for the fuzzy conclusion of the resolution type are widespread in the predicate calculus. The existing models of the resolution inference are effective, and also quite simple and convenient, for conventional reasoning under incomplete information and for automatic processing of uncertain knowledge in interactive systems. However, in such models the set of genera...

The authors propose a model of nonlinear interaction of social network agents, which is based on a matrix generalization of the known one-dimensional logistic mapping. Similar models have not been considered previously and have not been investigated numerically. Despite the relative simplicity of the proposed non-linear model, in the course of numerical experiments, various modes of agent behavior were observed. Namely, one of the agents hesitated in making a certain decision, others were able to "agree" (came to ...

The priority of the manufacturers and production companies is to improve product quality and reduce the cost of manufacturing. The resulting quality is often strongly influenced by the heat treatment of the product. The creation and implementation of mathematical and simulation models is an effective tool for studying of the thermal processes. We can use the simulation models at the construction of new but also in the reconstruction of existing thermal aggregates. In addition, from simulation studies, we can choos...

Power system components can be loaded up to their thermal limits and power transfers resulting from fast varying load patterns are leading to an increased congestion. The conventional energy sources combined with the trend of use of renewable generation will make the future grid more resourceful and responsive, more intelligent and smarter for its users. Central power stations have lower efficiency, high polluting stations affects the environment. In order to overcome these problems structural changes are needed i...

Long-term research on the ownership structure of individual farms in rural areas has shown that these areas are characterized by a defective patchwork of private land ownership. The sizes of the patchwork may limit, and often even prevent, the programming of works on agricultural land. The development of an algorithm for identifying areas characterized by a strong concentration of a defective patchwork of land ownership allows the selection of these areas (groups of villages) where land replacement works should be...

The federal information system for providing state final certification and admission can be transformed from a tool of adherence to and compliance with the law in the sphere of admission to higher education programs as the basis for an automated information system for organizing a centralized competitive selection for Russian universities. The research shows that this system needs only a small modification in terms of expanding the list of stored information. At the same time, the technical capacity of the federal...

Rail transport along specially important objects such as bridges and tunnels is of particular importance. In addition to their importance it also represents a very high-risk hazard, on the grounds that it contains a very weighted load and peoples within this transportation. Bridges and flyovers are critical in many regions, being used over several decades. It is critical to have a system to monitor the health of these bridges and report when and where maintenance operations are needed. Advancements in sensor techn...

Geoinformation system INTEGRO is intended to store and visualize geological map (scanned and vectorized), geophysical, geochemical and primary geological data, aerial and satellite images, borehole and three-dimensional data. It is also able to construct geological maps, forecast mineral resources and support studies of the deep structure of the Earth. The system is multi-window and is equipped with the synchronization mechanism in different windows for joint visual analysis of various information types. There are...

The last decades witnessed an explosive increase of the demand for digital data in the economy. This led to a significant growth in the number and the sizes of data centers. The energy used by the data centers has increased dramatically. This situation determined the quest for metrics that measures energy efficiency in data centers. A classical metric for measuring energy efficiency in data centers is PUE (Power Usage Effectiveness). It was introduced in 2006 by C. Malone and Christian Belady. It is defined as the...

Most of bilingual or multilingual dictionaries, especially the printed ones can be represented as a simple relational database with two relations with cardinality 1:N for each side of the dictionary. This database structure is actually sufficient if the user needs only word to word translation and if they are experienced enough to choose a proper translation from mostly many synonyms. One step forward is a contextual dictionary. The translation is influenced by the context of the word, what can make the translatio...

Systematic research on the collective behaviour of formal grammars started in the 90s of 20th century. One of the variants of grammar system models was inspired by eco-systems and it is called eco-grammar systems. Eco-grammar systems describe the interplay between an evolving environment and the community of agents which form the eco-system. Each agent as well as the environment of the eco-grammar system is represented by its own 0L scheme. Agent in the eco-grammar systems can change environmental symbols independ...

The goal of the paper is to design a concept of online monitoring for the urban environment. The set of urban online monitoring procedures includes five Internet of Things services: online calculation of air pollution produced by traffic congestion, online calculation of noise pollution for road neighborhood, calculation of the actual and forecast microalgae concentration for lakes and reservoirs, online calculation of livable meteorological conditions for urban microsites and calculation of acute and long-term he...

One of the most popular systems of simulation - GPSS World provides users (1) software tools to interact with the system in the process of simulation research and (2) software tools, realizing immediately the implementation of the model (including: syntax analyzer interpreter model, clock modeling, management of the list of events and more.). Until a few years ago the programs in the first group only automated a part of research itself, namely the creation of a text model and conduct experiments with it. In the ab...

The present paper deals with an important issue for the present digital world, namely the quality control of the optic fiber used in transmitting the internet, television, landline or mobile telephony and other digital content connection. Romania, the country with one of the most developed high-speed internet networks in the world, needs modern methods to test the fiber already in use, the one to be installed, as well as the welded connections between them. The paper presents the theoretical model of transmitting ...

The gamma-ray logging method is one of the mandatory well logging methods for geophysical exploration of wells. However, during the conduct of such a study, the sensor, for one reason or another, may stop recording observations in the well. If a small number of values are missing, you can restore these values using standard methods to fill in gaps like in time series. If data miss a large number of values, observations usually are made again, which leads to additional financial costs. This work proposes an alterna...