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Nowadays crop management seeks techniques and practices to enhance production and to optimize the use of natural resources. Most of the developing countries need reliable techniques which can help in increasing production to meet the demand for food. The techniques should be able to forecast crop yield and to detect problems ahead regardless of the technical or the natural conditions. Geospatial technologies including remote sensing play a vital role in mapping and in monitoring crops. However due to many obstacle...

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 ...

Positioning is a critical task for applications that involve mobile nodes as well as applications that rely on fixed nodes. The Global Positioning System (GPS) is a satellite-based navigation system that provides its users with proper equipment access to positioning information. The Iterative Least Squares (ILS) and Extended Kalman Filtering (EKF) techniques are two of the most commonly used approaches for GPS positioning. Both ILS and EKF techniques are based on the same pseudorange equation and both of the techn...

Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices. This paper proposes the PWM control of the laboratory bell furnace with utilization of PI controller. The paper presents the PI control algorithm modified in order to regulate the power of furnace. The control ...

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...

We have developed an online information system of mechanical recanalizations which is used in stroke centers in Czech Republic. The application is technically based on HTML forms, PHP and MySQL database. The system is online, independent on operating system and with possibilities to extend the functionality, there are main benefits. The database of mechanical recanalizations is a useful tool for long-period studies in neurosonology. Practical using, goals and benefits of the system is discussed in the first part o...

The research focuses on the potential of topographic elevations by means of aerial scanning with the help of drones, as an alternative for creating and completing the existing map database necessary for works in almost all fields of activity that concern the national economy. Research objectives are geared towards developing methodologies that use digital systems and geospatial data to update, complete and store the information needed for thematic mapmaking and identifying the most appropriate geospatial technolog...

The growing content delivery traffic becomes a challenge for efficient usage of network resources. Optimal utilization of scarce radio resources may be achieved by deployment of cloud capabilities in the radio access network i.e. by deployment of Multi-access Edge Computing (MEC). In this paper, we propose RESTful application programming interfaces (API) that enable third party MEC applications to send messages to end user devices in a specific geographical area. Using the API, an authorized mobile edge applicatio...

Modern socio-economic systems, as objects of management, are complex spatially distributed systems and territories, which indicates the need to develop and apply geo-information management. Natural, man-made and social processes of territory development unfold in time and in space and are characterized by a variety of parameters described by a random vector. The components of the natural and climatic potential are random non-stationary processes, the study of which leads to the necessity of forming, according to t...

The method of satellite monitoring of seismically hazardous areas based on a complex analysis of earthquake precursors is described. The proposed method was tested on the example of the August 2016 Central Italy earthquake. It was carried out by spatio-temporal analysis of the data of multi-year satellite monitoring for a complex of thermal and ionospheric parameters in seismically hazardous regions. The AIRS/Aqua Level 3 daily data (AIRS3STD) with the values of outgoing long-wave radiation (OLR), surface temperat...

The accuracy of location of seismic sources using time reversal imaging techniques is considered in this article. The location procedure is performed using backpropagation of the recorded and reversed seismic signal from receiver throughout assumed geological model. The new imaging parameters, peak average power ratio (PAPR) coefficient is used for efficient visualization of the backpropagation of the seismic energy. The detection of seismic wave focusing was carried out on the basis of the high PAPR parameter val...

The method of two-phase locking (2PL) is still used in concurrency access in the global transaction management. It has its advantages in distributed database management systems (DDBMS), conflicted events. The paper views modeling algorithms of Centralized, Distributed and Primary copy Two-version Two-phase locking. The presented algorithms are models of the corresponding variants of the 2PL protocols for DDBMS using two versions. As in concurrency control of distributed transactions in DDBMS deadlocks are possible...

This paper details findings of the complex research aimed at the strategic planning effective instrument finding and postulates that simulation with agent-based models implementation can become this instrument. Every city model is an immensely complex artefact, as it should be a set of interrelated digital twins of social living and infrastructural non-living objects, which are to reflect the real objects in the dynamics of their lifecycles, at the same time, providing an opportunity for developing effective contr...

An important problem in assessing water quality is that the data on water pollution and their analysis are formed over the previous period, and as a result, it is difficult to assess the current status of water resources, the more likely it is to predict it for the future period, which would allow timely action on improvement of the ecological state of water. The purpose of the work is to evaluate the possibility of using neural networks to simulation of surface water pollution. The data are derived from the resul...

One of the fields where the principles of intelligent systems are significantly reflected is logistics. Smart intelligent features are used across different disciplines, and their technological development influences progress in the industry. [1] One of the fields, where the principles of smart systems are nowadays implemented, is logistics. Autonomous smart elements communicate with each other using the Internet of Things and provide more effective support and communication for their digital twin (cyber-physical ...

In this article, considering the process of preparing the regulated stage of construction for hazardous objects of a high degree of responsibility - this is an assessment of the impact of the proposed construction on the environment (EIA). The main attention is paid to the socio-technical aspects of the EIA procedure, as a tool for data collection for making management decisions. In this paper, we highlight the importance of a comprehensive assessment of the construction site and taking into account the features o...

Authors describe the novel approach to boost the scientific data analysis performance with the data-storing schema for distributed scientific research systems. This approach optimizes the workload on storage nodes and enhances the computation performance. Managing the enormous output of scientific research systems is expected to be the most technically difficult part of all recent projects producing Petabytes of imagery data. In this paper we describe the distributed storage structure with indexing techniques whic...

Actual tasks in development, configuration, utilisation and support of complex technical, economic and natural systems require a deep understanding of its internal processes. System dynamics discipline is devoted to that problem and let to researching and analysis the complex systems behaviour. The base of it is a numerical method for dynamic system modelling. Modelling processes for real systems require significant computational resources (time and power consumption). Authors provide the approach to the optimisat...

Scientific codes are usually highly parallelised and executed on heterogeneous architectures. Nowadays, it is common to use graphics accelerators (GPUs) to speed up data-parallel algorithms, and in the meantime, the already existing CPUs can help in this work. Distributing the jobs between systems is always a difficult problem, especially when the processing units have different runtime environments and hardware architectures. There are several attempts for static and dynamic load balancing, but most of these are ...

The evacuation time of occupants in a fire event is a particularly important parameter, both for the development of emergency evacuation plans and in the post-event investigation. To estimate this time, the classic approach uses alarm / evacuation trials. These simulations involve the allocation of human and financial resources and have the disadvantage of not being able to cover a wide range of technically possible critical scenarios. Moreover, it has been shown that in real fire cases, human behaviour can be sig...

Wood was the most common source of energy on earth, being gradually replaced by fossil fuels. Given that the wood used in the generating stations comes from properly managed forests, then the carbon emitted from the chimneys can be annihilated by the carbon that is absorbed and used by the freshly planted trees. Wood can therefore be considered as carbon neutral. It remains to be seen if this theory is actually verified. Once it was decided to classify wood as a renewable source, its consumption increased exponent...

In information technologies classical rules of regulation are often used for designing systems of automated control of technological objects. Application of these rules requires access to the aprioristic information on the object of control. One of the main causes for the development of new approaches is a lack of aprioristic information on the studied object which is adequately described by a representative class of nonlinear dynamic models perfectly demonstrating the most significant and important properties of ...

In the study it was assumed that it is possible to identify a set of geoinformation that has a mitigating or enhancing effect on financial losses caused by the occurrence of extreme weather phenomena. Among the wide group of factors of spatial, environmental, agroclimatic and economic natures, a ten-element set of geoinformation which affects the vulnerability of the area used for agricultural purposes to the resulting financial losses was identified. Thanks to the selected group of characteristics it was possible...

Characteristics of educational technology used at the Moscow State University of Geodesy and Cartography focused on C++ programming language teaching students of geodetic specialties are presented. The new C++ programming course for geodesy and cartography students has been developed. This course is geared towards the needs of geodesy and cartography department of higher school. The current task is to elaborate a wide geodetic collection of tasks for C++ programming exercises. The need to develop a specialized C++...

Artificial Intelligence (AI) has now become a reality and, in many areas, it is already used, being very secure. The advantages of AI are unlimited and do not only influence everyday life, but also in all industries. This includes the automotive industry, which could lead to faster mode of transport and a significant reduction in the number of accidents and harmful CO2 emissions. Communication with a car now has a variety of different functions, most of which use the cloud - a relatively new idea - and everything ...

The article deals with the creation and verification of a new procedure for the determination of spatial objects contained in the VFP (land exchange format in the Czech Republic) necessary for complex landscaping and landscape protection by UAS (Unmanned Aerial Systems). It focuses on verifying spatial accuracy on a pilot sample of data obtained by double scanning at the Obratan test site and establishing input parameters and conditions for site mapping so that the new method of unmanned aerial systems complies wi...

Cave rescue operations are difficult and very complex. One of the most important factors that affect the effectiveness of cave rescue operations is pre-planning. 3D modelling of caves provides new opportunities for it. Terrestrial laser scanning was used to create 3D model of Diabla Dziura in Bukowiec Cave. Three types of stretchers, used by local Mountain Rescue Service, were measured and scanned. The analysis consisted in a virtual ?transport of the patient? in a 3D model of the cave. Using this method, zones wh...

In additive manufacturing field are many technologies and devices which could be included in such area. Basic difference between conventional and additive manufacturing is the way how the surfaces of final part are created. In conventional subtractive manufacturing we have to remove material from block of raw material of semi-product to reach final shape. For additive manufacturing is typical that we adding material, mostly layer by layer to build final shape of model. Most common and available additive manufactur...

Testing of transmission parameters within data networks is necessary for evaluation of quality level of provided services guaranteed in SLA between provider and end user. The main aim of the article is to introduce recommendations ITU-T Y.1564 SAM and demonstrate measurement its own according to these recommendations. The article is focused on efficiency measurement of IP networks with comparison to QoS parameters from different network features, which use 100 megabyte and gigabyte Ethernet interface. For measurem...

Organization of the Access database of the Zletovo lead-zinc deposit Eastern Macedonia represents the first attempt of this paper authors to synthesize geological exploration data of this ore bearing locality in one professional database available for the interested parties. Ours experience in organization of similar databases for other metal deposits such are Bucim, Borov Dol, Kadiica, Sasa etc., gave us the necessary knowledge and experience to construct quality Access database for the Zletovo deposit. The Zleto...

The increase of transferred information amounts brings the need to create new automated systems for data recognition, classification and routing. It is impossible to solve such problems without modern machine learning technologies and artificial intelligence technologies. An algorithm that takes into account the linguistic and syntactic properties of documents, the characteristics of the subject area is formulated on the basis of the system approach to the analysis and decomposition of the task of document routing...

The number of active users of social networks according to the latest Global Digital Statshot report from We Are Social and Hootsuite has exceeded three billion. This fact makes social networks the one of perspective sources of information for carrying out analytics of various kinds. The particular interest from a scientific point of view is the identification of interactions between individual actors and social groups. Since a significant part of the interactions are personal data, which are closed for general re...

The article presents the results of the research studies assessing the accuracy of determining the position of an aircraft using the differential RTK-OTF technique inthe post-processing mode. The data for the research test come from an in-flight test in which a Cessna 172 aircraft was used, and which was conducted around the EPDE military airport in D?blin, Poland. The position of the Cessna 172 aircraft was retrievedin the ASOS v.2.0 program for 3 independent RTK measurements in the OTF positioning mode. For the ...

In this article, the issues of perspective development of telecommunication networks in the era of structural shifts in the socio-economic system are considered. To solve the problems arising in the course of this transition, the goals and objectives of the research are formulated, within the framework of which the peculiarities of the development of telecommunication networks have been revealed and the stages of their evolution have been determined, taking into account both the growth of the technological infrast...

Sustainable development of the capital city of Republic Kazakhstan of Astana is an main task, which provides the high quality of the urban and environment development. Astana city is an new capital, a large urban center of the country with the regional and global markets, the large business transit hubs and key transport corridors of the Central Asia. The population of the Astana city from 1999 to 2016 increased from 326.9 thsd. to 972.7 thsd. people. In 2016 the labor resources of city was 50.2%, indicators of po...

At this moment, in Romania it is desired the introduction of the general cadastre and with it, the completion of specialized cadastres. The cadastral works are carried out in order to provide realistic and complete real estate data to the interested persons, at all times, and is finalizing with the registration in the Land book. The realization of general/systematic cadastre is the exclusive attribute of the Romanian State, through the National Agency for Cadastre and Land Registration (NACLR). The objective of sy...

The article touches the problem of simulation of discrete systems, discusses the law of probability distribution, considers the probability of the distribution of the time interval between packets in computer networks. To create a model that takes into account the characteristics of traffic in a real system, the law of distribution of random variables is used. To obtain results close to the real system (minimum distortion is a goal), it is necessary that the initial data are comparable to the real ones, during the...

Not having the methodological foundations of solving problems of strategic management (SM) in the form of the conditions of the existence of a process, we cannot guarantee the achievement of the goal of the activity. This situation gave rise to a fundamental problem: "The results of the activity for solving problems of SM do not meet the expectations of the decision maker (DM)." The DM acts on the basis of three categories: System, Model, Purpose. Therefore, it is necessary to solve two problems for successful SM....

Lasers are the most accurate measure of distance increment. Therefore, they are used to detect ultra-small oscillations of rock under the influence of tidal forces [1?6]. This allows identifying the accumulated tensions in the earth's crust. The change in the type of such fluctuations indicates the possibility of earthquakes in the near future, which allows reducing the damage from such catastrophic events, to save the lives of many people. Currently, such systems use frequency locking of two or more lasers to eac...

The Artificial Intelligence is a measure of the ability to achieve purposes in a complex and dynamic.The recognition of the figures using artificial intelligence has been and is still one of the great problems of the modern era. The attempt of identification of the figures in various forms, the contours and shades has developed an impressive number of algorithms. Up until now it has not been discovered the optimum method and algorithm with an efficiency of 100 % in recognition of the figures.The front work propose...

In modern electric drive systems, regardless of the speed control method used, the asynchronous motor power supply tends to be generally made from static frequency converters that can change the amplitude and frequency of the supply voltage. In order to achieve the static converters in which semiconductor materials are used, the latest generation technologies are used. For Silicon Quality Control in industrial processes CryoSAS (Cryogenic Silicon Analysis System) or SiBrickScan (SBS) Silicon Ingot Analyzer are use...

3D model has been presented for numerical modeling of gravitational waves near the shoreline in this work. It consists of Navier-Stokes equation system, which includes three momentum equations and mass conservation law equation in region with dynamically varying boundaries. The variant of physical processes splitting method (the method of pressure correction) has been used to construct stable and conservative finite volume scheme. The adaptive alternating-triangular iterative method has been used for solving obtai...

The advancement of tracking technologies such as RFID (Radio Frequency Identification) in recent years is developing the study area of shopping behavior of consumers in retailing setting which globally regained increased interest. However, not so many studies have attempted to analyze consumer shopping behavior using the RFID data. The purpose of this paper is to propose the framework based on behavioral variables, which can be tested using the RFID data obtained from the experiment in one of the supermarkets in J...

Thanks to the ability to collect information about large areas and with high frequency in time areas threatened by floods can be closely monitored. The effects of flooding are socio-economic losses. In order to reduce those losses, actions related to the determination of building zones are taken. Moreover, the conditions to be met by facilities approved for implementation in such areas are determined. Therefore, satellite data from the Earth observation program play a key role in assessing water conditions that ar...

Typification of ice conditions in the Arctic is an essential step to solve important applied problems in the field of arctic marine transportation since in such studies a variety of ice conditions is often described by a predefined set of typified scenarios that directly influence the results. Criteria for ice typification traditionally include the parameters that represent all the sea area, e.g., total ice coverage, area of old ice and other. However, our practical experience shows that such criteria do not alway...

A model of traffic dynamics of the University server node is described, interpretation of the proper model components is carried out, and the interval of a satisfactory forecast is estimated. Currently, corporate computer networks play an important role for the successful functioning of various organizations. Herewith, the number of each network users gradually increases, which contributes to an increase in the circulating information content and, accordingly, worsening the quality of network services. To date, li...

Development of information and computer technology is a factor in increased use of statistical methods in all sphere of action (geology, geophysics, ecology, astronomy and many others). Regression analysis (RA) is widely used in the prediction and assessment of model parameters. For many years the ordinary least squares estimation method (LSE, OLS), a computational scheme of RA, and its generalizations are widely used in practice. The disadvantage of the classical scheme of RA, is that with the compliance LSE assu...

Modern versions of the ASRM-2017 (Automated System for Robust Modeling) package provide a solution to a large range of problems associated with modeling surfaces and gravity fields of planets. However, their application requires creation of not only the global models but working models of the local surface areas as well. Currently, these regional geopotential models are in high demand in geology and oil exploration. To solve the problems of this kind, the special algorithms were created and implemented because the...

The efficiency of the process-based Vaganov-Shashkin model for tree-ring growth simulation has been tested previously on extensive dendrochronological material from the Northern Hemisphere in USA, China, Russia, Tunisia, Spain and France. But using the model is not a trivial task, taking into account a number of the model parameters that should be adjusted for the certain environmental conditions based on parameterization approach. Here we present a new web tool of the VS-model parameterization, i.e. VS-Oscillosco...

The paper describes the deployment of an open-source Crismapp platform. It is a WebGIS 2.0-based solution designed primarily for crisis management purposes. As part of a cooperation with the University of Bergen, Crismapp was implemented for the purposes of monitoring the earthquake in the Norwegian region within the European-wide observation network EPOS. HTML5-based application reflects the WebGIS 2.0 principle and uses as much as possible open tools: the Leaflet map library and GeoJSON data format. Besides the ...