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Schools and universities of independent Ukraine are constantly developing the technique and skills of using visual teaching computer methods. Important, in this sense, is the use of GIS in various fields of knowledge. At the moment, a significant number of academic disciplines in Ukraine relate to the use of GIS technologies not only in geography, but also in other areas, such as architecture, ecology, etc. Such academic disciplines as ?Historical Informatics? and ?Geoinformation Systems? are included in the curri...

Different natural and man-made hazards lead to the loss of millions of hectares of forest every year; sustainable forest management, which will decrease or prevent loss, is vitally important for our planet?s health. Sustainable forest management in the Russian Federation implies the effective multi-purpose use of forest resources, which involves implementing preventive and reforestation measures. However, the forest extends over vast territories, which complicates the work of determining the state of the system as...

In the last few years, the climate change has become more and more apparent. In this time the Central European region has experienced disruption of the precipitation layout, serious storms, heatwaves and droughts. Primarily the droughts have let people feel the need for stable and predictable environment. This problem has usually been addressed as a global effort to reduce the production of greenhouse gases, omitting the option of adjusting the environment on much smaller scale. For mitigating the effects of globa...

The article presents the results of a study of the attractiveness of the forests coasts of the Cheboksary Reservoir on Volga River of the Cheboksary urban district in Chuvashya region (Russia). As the main natural and recreational characteristics, two criteria were chosen: the attractiveness of the relief and forest landscapes. The results of the study showed that the Right Bank of the Cheboksary reservoir has a high natural and recreational potential. The work revealed the possibility of using the attractiveness ...

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...

Light soils contain up to 20 % clay particles, which results in their high water and nutrient permeability and thus low fertility. Another factor affecting light soils is their easy drying. The Hodov locality was chosen for an experiment suitable in terms of quite low rainfall per year and soil type corresponding to light soils. The experimental locality Hodov belongs to a slightly warm climate region (MT9) with a long-term average rainfall of 500 mm/year. The prevailing soil type is Mesobasic Cambisol with a high...

Fibre-reinforcing is an efficient method to improve the mechanical properties of a wide range of materials including soils. A drawback of currently used fibres, given by methods of production, is their uniform cross-section, planar shape and a smooth surface in most cases having an adverse effect on the pull-out capacity of fibres. The proposed paper presents an initial experience with the fabrication of fibres and testing of cohesionless soils improved in this way. The commercially available 3D printer was used a...

The problem considered in this paper is the need to step up the methodological and informational support for improving the environmental and economic efficiency and sustainability of natural resource management in the Kamchatka territory (Russia) and the adjacent marine areas of the Pacific Ocean. The object of the research is the natural resource potential of the research area. The subject of research includes: clarification of the composition, structure and system relationships of the main natural resource poten...

The pollen record from a 96 cm long sediment core obtained in Lake Arcto-Pimberto (68°26.114' N, 053°32.311' E, Pechora river delta, Nenets Autonomous Okrug) reflect regional vegetation and climate changes in the north of the Eastern European plain over the last 6000 year. The taxonomic and stratigraphic structure of the column of bottom sediments is reflected in a spore-pollen diagram which was divided on the 4 biostratigraphic sequences - pollen zones (PZ I-IV). The results show that the bottom of the core (PZ I...

According to the current environmental legislation, wooden railroad ties are after the end of their service life considered as a hazardous waste. Various impregnating agents, representing mixtures of distillation fractions (creosote oils) and having a proven carcinogenic character, are used at their production. These agents serve as a wood protection against weather conditions and an attack of biological agents. After the elimination of hazardous impregnating substances, high percentage of quality wood pulp can fi...

At national level, a series of technical regulations harmonized with European directives and norms are adopted, which present essential occupational safety and health requirements applicable to the field of explosives for civil use in various specific activities in which their use is necessary. Concerns in the field addressed in the paper, are also registered at the level of the European and international community, respectively, because a good knowledge of the concepts and the practical experience regarding the d...

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...

The objective of the study is to visualize the Vltava River valley in the area of Kamyk nad Vltavou. The workflow involves the georeferencing and vectorization of map data in ArcMap. Based on this processing, 3D objects are procedurally modelled in the CityEngine programme. The resulting 3D objects are complemented with a photogrammetrically created model of the Kamyk Reservoir. The results are presented in the form of map applications. This study aims to present the workflows already used in the project and the p...

Volodarsk deposit of complex ilmenite-magnetite-apatite ores is located within the ore field of the Kalchytsk ore district of the same name. Found in the process of GSM-200, studied in the process of search and evaluation work. It is dated to the Gabro-sienite phase of the South Kalchytsk complex, the rocks of which constitute a stratified intrusion of the main composition with an area of about 103.8 sq km in the southeastern part of the Volodarsk massif. In the process of formation of intrusion as a result of fra...

The aim of this paper is to introduce a small wastewater treatment plant in the Czech Republic with a capacity of 8,311 population equivalent, which was constructed in 2004. The wastewater treatment plant is designed as a mechanical-biological treatment plant with nitrification, denitrification and aerobic sludge stabilization. The activation reactors are controlled by a dissolved oxygen concentration probe. For the time being, the ammonia nitrogen and nitrate probe is only used for current concentration overview....

Zooplankton organisms are widely used as indicators of ecosystem changes (Adrian et al., 2009, Nigamatzyanova G., Frolova L., 2017). Both zooplankton and nutrients play an important role in monitoring and assessing water quality by greatly contributing to biological productivity (Vinberg,1960). In the current study, we examined water quality of different types of water bodies of Ob and Erkuta river basins, based on the analysis of zooplankton communities and the concentration of nutrients. 72 species of zooplankto...

The Azov Sea is one of the shallowest inland reservoirs in Eurasia. The special physical and geographical location of that object determines the temporal variation of its hydrological and hydrochemical characteristics. One of the main features of the sea is the presence of run-off and surging phenomena, determined by water exchange with the Black Sea and the river flow, small area and shallow water body. The currents are considered as significant factors for many processes of matter and energy transport in the Azo...

Objects of geological heritage of international level are located in the Nizhny Novgorod region. This is the Puchezh-Katunki impact crater of an early Jurassic age, the Bathonian-Callovian deposits of the Jurassic system near the settlement of Prosek on the banks of the Volga and karst lakes and caves in the basin of Pyana and Tyosha rivers. A water induced risk assessment was carried out to include it in application for aspiring UNESCO Geoparks network. The assessment includes the risk of landslides, abrasion of ...

Monitoring progress in the water sector requires an interdisciplinary approach and involves quantitative and qualitative assessment. This need must be integrated in such a way as to allow the solution of a wide range of tasks. In addition, the process should allow the inclusion of views and evaluations of water users. To evaluate the progress of a municipality, country or region, it is necessary to build a monitoring system based on simplified indicators. In this context, the purpose of this publication is to adap...

Local latitude is formed in the North-South with the beginning at characteristic 290 points at the source of the Irka River, the river itself is in a rectangle 23.89 minutes long (in latitude) and 18.89 minutes wide (in longitude). The starting point at the source of the river is given a zero rank. The purpose of the article is the analysis of asymmetric wavelets of changing one coordinate - local latitude reduced to the Irovka River from source to mouth. After identifying the universal wave equation, 25 terms wer...

Moving towards a circular economy requires well-functioning recycling systems but also the implementation of effective product-life cycle extension schemes such as re-use, repair or refurbishment. A web-based analysis of the websites dedicated to informing the citizen about the private delivery of recyclables to the local recyclables collection centre (recycling centre) was conducted. All cities in Germany with a population of more than 100,000 inhabitants were considered (80 cities in total). Clarity of informati...

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...

Due to the changes in global climate patterns, wildfires have recently become a significantly greater threat to both human settlements and the corresponding activities. The same degree of threats is applicable for numerous species of fauna and vegetation, all across the world, especially in arid climate areas. Scientists that have conducted research on the subject revealed that climate significantly influences the probability of certain areas towards being affected by wildfires, especially taking into consideratio...

The Sea of Azov is characterized not only by small sizes and depths for oceanic waters, but also by intensive water exchange with river waters and the waters of the Black sea. These features of the reservoir are superimposed by wind activity, which contributes to the formation of wind surges phenomena. Under their influence, the upper layer of bottom sediments is agitated, accompanied by the transition of previously deposited material into the water column. After the wind action is weakened, the reverse flow of re...

In this study, a procedure was developed for the synthesis of WO3-containing catalysts based on zeolites of the ZSM-5 type. Zeolites with different Si/Al ratios and different numbers of acid sites were used: ZSM-5-CVM, ZSM-5-CVN and ZSM-5-Acros. The synthesized catalysts were characterized and tested in the reaction of the conversion of fructose and glucose to 5-hydroxymethylfurfural and levulinic acid. It was shown that the introduction of tungsten (VI) oxide into the composition of ZSM-5 leads to a noticeable in...

The article describes a long-term and seasonal dynamics of zooplankton species diversity and its relationships with hydrologic factors were investigated on Lake Fish located in Samoylov Island on the northeast of the Republic of Sakha (Yakutia), Russia. This lake was chosen as a research object due to its mixed type of origin: thermokarst-polygonal. Zooplankton was sampled at three locations: on the pelagic and littoral zones of the thermokarst part and polygonal part of the lake. In total, 90 taxa (80 species) of...

The present paper concretises a current assessment of the quality of the environmental components by characterizing the soil and groundwater samples in 4 agricultural areas in Romania, chosen as case studies according to the criteria of their vulnerability to climate change. The important data obtained from laboratory physical and chemical characterization of soil and groundwater samples taken from these areas, have been analyzed in close correlation with current agricultural practices identified and their local s...

The aim of this article is the studying of the "predator-prey" populations controlled interaction. The well-known Lotka-Volterra system ([1], [3], [5-15]) with control is used as a mathematical model. A complete research of this model is done: from its parameters identification to the choice of optimal control. The identification numerical algorithms are based on the Taylor series method. This method application is reasonable in this case, because right sides of the considered ODEs system can be presented in polyn...

As a result of mining activity on the earth?s surface the phenomena that have negative effect on the objects in area of influence of extracted area exist. Depending on geomechanical qualities of hanging wall and surrounding rocks, geological conditions of depositing, seam and depth of position of deposit, critical angle of influence, way and time course of mining and other parameters the horizontal and vertical movements always appear to a greater or lesser extent. They can be described by inclination, proportiona...

One of the most effective ways to interpret the geological setting of a deposit is building its 3D model. Presenting data in form of a 3D model enables quick and convenient access to relevant information, facilitates taking decisions associated with deposit management and helps plan mining operations. With a model of the geological setting of a deposit it is possible to prepare different variants of a coal mine model as well as type of mining technology, to tackle work-related safety issues and to achieve optimal ...

We consider a problem of reservoir facies classification based on well logs. The classification procedure assumes that there is a train sample, which has a corresponding lithotype for every log entry. Since the physical nature of observed rocks is very complex, there are currently no adequate mathematical models which can describe it. We proposed the probabilistic model which takes into consideration mutual stochastic dependence of adjacent log entries, which is represented by Markov networks. The characteristic f...

In this paper we present a case study on the identification and contouring of a gas deposit, placed mainly in Pontian formations. This study is based on some geological landmarks as well as the interpretation of filtered gravimetric and magnetometric data. The gas deposits determine minimum gravimetric anomalies, under the specific geological conditions of the Transylvanian Basin. Such gravimetric minimum is determined on the one hand by the rise of the salt, and on the other hand by the mass deficit within the sa...

As an effect of globalization on natural resources demand, the need for an increasingly detailed knowledge of the geological structure of a territory and of the characteristics of these resources have also emerged. This has been the context when the administrative boundaries and the specific national policies and legislation have differentiated the current knowledge of a geological unit. For the authors of this paper, the western part of Romania is the most recent case studies where the harmonization of Romanian g...

More than thirty percent of deaths from stroke, lung cancer, and heart disease are due to air pollution. Due to the current economic global situation where half of the world has no access to clean energy, furthermore, it seems highly unlikely that IC engines will go out of business anytime soon, we face the reality that our engines will continue to pump out harmful emissions. The main pollutants are particulate matter, a mix of solid and liquid droplets arising mainly from fuel combustion and road traffic. Thus, w...

For increasing the volumes of the grain production and quality it is necessary to restore and extend sowing area, enlarge the yield growth at the expense of intensive technologies of cultivation, effective selection and decrease of losses while harvesting. One of the main reasons of yield shortage is lodging of sowings. This paper compares extent of grain crops lodging. The investigation was carried out using mathematic analysis of variety features of the stem resistance for winter and spring wheat, barley, rye, t...

In this publication, we summarize, systematize and analyse data collected for studying the use of HTTPS in the public sites of banks in Bulgaria and Serbia. The scope of the study is limited to the public site of the particular bank. We examined the web sites of all 20 banks licensed in the Republic of Bulgaria and 27 Serbian banks licensed by the Serbian National Bank at the time of the survey. The survey excludes the foreign bank branches operating in the respective countries. The main objective of the study is ...

In this paper, a computational method to predict the dimensional changes in some powder metallurgy materials is used. The samples prepared from pre-alloyed iron base powders produced by atomization (< 45, 45-63, 63-100, 100-150, >150?m) were the materials analyzed in this paper. The analyzed powders were compressed in a mold using uniaxial pressing at 400 and 600 MPa with the disc dimensions of ? 8 ? 6 mm. The sintering temperature was approximately 1.150 °C for 60 and 90 minutes. The density in green and sintered...

Small and medium-sized enterprises (SMEs) use energy consulting as an important instrument for reducing information deficits when investigating savings potentials and measures for improving enterprises? energy efficiency. Since 2012, Germany has implemented a government support program to help cover the costs of energy consulting for small and medium-sized enterprises that have an energy audit carried out by a qualified consultant. This work examines the results of over 290 companies with energy balances in the pe...

Forest fires consist a continuous threat for Greece and Mediterranean countries and one of the most serious environmental hazards. Nowadays, the perspective of forest opening up as being an important preventive measure of forest protection, which is a basic pillar of a multipurpose forestry system of the Greek Mediterranean mountains, is gaining ground. The public forest complex in the region of Vria - Ritini of the Pieria Prefecture has been selected as the research area. The present investigation seeks to captur...

A generalized spectral-analytical method (GSAM) for analyzing data of various physical nature has been developed. It is based on the generalized Fourier representation of the original experimental and model digital arrays. In this report, it is used in the implementation of a resonant-impedance method for diagnosing and studying the characteristics of mechanical systems (in particular, linear one-dimensional acoustic systems with local anomalies). In the framework of this approach, the anomaly (damage) of the syst...

Vulnerability may be considered one of the most important components of the seismic risk, as it is the only one that human society may act upon in order to reduce the risk. As seismic vulnerability implies multiple dimensions, from the physical one to the social and economic ones, a multi-criteria decision-making approach proves to be appropriate for its assessment. The uncertainty inherently involved in the assessment process is addressed using fuzzy logic theory. This paper aims to assess the seismic vulnerabili...

Optimization plays a key role in various fields of science specially engineering to simplify the decision making process. Long-term production scheduling (LTPS) of open pit mines is a large-scale optimization problem to determine the block extraction sequence to maximize the net present value considering technical, economic constraints. For many optimization problems, finding the best solution is intricate and time-consuming. In such cases, a combination of mathematical methods and meta-heuristic techniques provid...

Currently there is no uniform method for the economic evaluation of construction and exploitation costs of underground structures that would incorporate not only construction costs, but also costs associated with possible accidents and damage during exploitation. At the same time, we believe that in such cases costs should be evaluated in advance, because these situations often result in catastrophes with incredibly high liquidation costs. In this paper our method for evaluation of costs of underground constructio...

In the last decade, many researchers have asked themselves whether it is possible to have a different economic model from the so-called linear one, i.e. to move from the linear to the circular economy. The linear economy is based on the concept that the goods we use must follow a life cycle consisting of three phases. The first phase consists of the extraction of raw materials (or production of agricultural products). The second phase is the transformation of the raw material into semi-finished products. The final...

Long-term production scheduling (LTPS) is an important and vital part of the planning process of open pit mines. It defines an extraction sequence of the mineralized material that produces maximum possible net present value (NPV) while satisfying a physical and operational constraints. LTPS of open pit mines is a large scale and intricate optimization problem that has been widely discussed in the technical literature since 1960s. Production scheduling problems are NP-hard and there is a need to improve the plannin...

For many times, the authors participated in the projects on designing and construction of main pipelines in the Russian north. Accumulated experience brought us to the understanding that the available methods aimed at the assessment of natural risks for pipelines [1, 4-6, 12, 13] have sufficient drawbacks. These methods base on the correlation between the registered accidents and unique landscape units or different Quaternary deposits, thus, the results are hardly comparable and poorly adapted to the GIS of other ...

The area of interest is the synthesis and study of properties of new types of hydrogels made from pelt waste, in order to recover waste from tanneries. The research paper shows that exploratory research as a starting point to obtain new polymeric complex products -multicomponent - called hydrogels, by processing organic waste with applications in agriculture. Hydrogels that are based on biopolymers, compared with hydrogels based on synthetic polymers, have the advantage of biodegradability and a low level of toxic...

The oil price crisis has changed the way how we treat our producing wells. Nowadays production intensification is not just a possible option to increase the flow rate of wells with poor performance, but a treatment we must consider for every well to achieve ultimate productivity. However, before the actual treatment a series of different steps are necessary to take, such as candidate selection, method selection, treatment planning and decision making. These steps require the cooperation of different personnel, mos...