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The Polish Cu-Ag deposits on the Fore-Sudetic Monocline are characterized by the occurrence of sedimentary structures called the elevations of the Weissligend top. These are elongated forms in the shape of sandy shafts whose occurrence affects the change in the value of deposit parameters (including reduction of the shale series's thickness). In the Lubin deposit, these elevations are the least well-known among all such structures in the entire Lubin-Glogow Copper District (LGCD). The basic material of the study w...

The aim of the present study was to determine the content of coumarin as a possible methanogenesis inhibitor in prepared model silages made of mixed cropping system (MC)crops composed of Zea mays L. and Melilotus albus MED. (white sweet clover).Global efforts to reduce dependence on non-renewable fossil fuels are intensified andbiomass production is becoming increasingly important. European Union (EU)intervention in the field of renewable energy has contributed to increasing the demand forbiomass intended for biog...

This study is devoted to the development of e-learning technologies for disabled students with violation of musculoskeletal system. These works are focused on creation an intellectual decision support system for inclusive education process, providing an individual approach and personalized e-learning for students with disabilities. Currently, there are several approaches and various techniques for creation education systems, and the investigation in artificial intelligence has been one of the most successful areas...

The application of the collection of tropical and subtropical plants of the Botanical garden of "Leningrad state University named after A. S. Pushkin" is considered in the process of training bachelors in different directions. The directions of using the collection of plants in the training courses of disciplines included in the plan of training bachelors on direction "Ecology and nature management" profile "Ecology"; "Pedagogical education" profile "Geography and biology"; "Landscape architecture" profile "Decora...

Over the last decades, river floods in the world are more common causing more and more human and economic damage. Understanding the Processes causing floods and developing simulation models to assess the threat floods are important issues. In this regard, the use of two-dimensional hydraulic models for flood simulation in areas with complex topography and infrastructure where additional information is needed to differentiate the flood threat is extremely convenient and gives more accurate and detailed results from...

The creation of in vitro model of human BBB, completely identical to the real BBB, was necessary for the possibility of studying the transport and penetration of drugs and xenobiotics and is still very popular and urgent task. In order to reproduce the most close to the real in vitro model of BBB, a microfluidic platform is used, which allows more carefully reproduce the structure of BBB, as well as physiological tangential stress on the surface of endothelial cells (0.3 - 2 PA). An innovative development was a ne...

GIS-technologies in hydrogeology facilitate transformation of methods of cartographic works. At the same time, it is necessary to provide methodological recommendations and guidelines for presentation of geographical features on the digital hydrogeological maps. The hydrogeological maps are constructed on the results of the hydrogeological research with due consideration of geological conditions of the region, aquifers and aquifer systems, aquicludes, linear structural elements and other data. This article is abou...

In the paperwork is exposed a practical way for establishing critical points position in a pressurized enclosure by using the computational fluid dynamics (CFD) simulation. It is known that for complex inner structures of pressurized enclosures it's very difficult to precisely establish the position of critical points. Those critical points are points where the concentration of the test gas will reach at the latest to the desired value of concentration in the process of testing. In the first part of the paper were...

The work is considering of technology of Crude distillation unit in general modern technology of refining process. Crude distillation unit (CDU) is at the front-end of the oil refinery. Oil topping column K-1 is especially important in the general crude distillation unit technology in Russia. The main purpose of K-1 column is separation of light gasoline and the main part of the dissolved gases from crude oil in order to normalize the amount of gasoline hydrocarbons following to the main column K-2 and to stabiliz...

It was experimentally shown that using liquid nitrogen and a radioactive source, radon can be concentrated to high levels. A simple device has been proposed, that allows pre-concentration of radon at liquid nitrogen temperature. The essence of the device is based on the transformation of gaseous radon into a liquid. It is known that liquid nitrogen has a boiling point (-195,75) ??, and gaseous radon turns into liquid at (-62) ??, and at (-70) ?? turns into a solid state. Thus, the low temperature of liquid nitroge...

In paper describes the geological structure and mineral associations of the Ural emerald mines (Middle Urals, Russia) as the main source of high-quality chrysoberyl and its rare variety, alexandrite. The purpose of work is to identify the crystal chemical characteristics and nature of the color of natural chrysoberyl and alexandrite, as well as to study the comparative crystal chemical characteristics with their synthetic analogs. Samples for research were chrysoberyl and alexandrite from mica carrying rocks and p...

This paper presents geology aspects of jeweler demantoid new manifestation, which was recently discovered in the Polar Urals. The mineralogical characteristics of the manifestation are described, demantoids chemical analysis results are shown, and comparative analysis of demantoids with samples from classical Ural deposits is given. The crystal chemical characteristics of demantoids from this manifestation are studied and color origin of these garnets is investigated. Demantoid mineralization is presented in two t...

This paper examines changing environment of natural gas market with focus on Europe. It discusses the supply demand balance suggesting that developments in recent years will likely lead to higher natural gas prices and the need for new infrastructure in order to provide energy security at affordable prices. Last decade has seen significant fluctuations in prices of natural gas globally. In middle of 2018 market signal indicates that prices have bottomed out in the first half of 2016 and now they are on upward traj...

The article is devoted to the issues of industry environmental self-control legal nature which is traditionally considered one of the forms of environmental control by the Ukrainian environmental law doctrine. The urgency of improving the efficiency of law in this area is due to the authors` contention, according to which environmental control is one of the most promising guarantees for ensuring environmental safety of the environment and human beings by preventing and minimizing the negative impact of environment...

This scheme is based on the idea that the stratigraphic limits of this time interval (251 ma) correspond to the temporal positions of a large number of distinct dynamic moments (change of meaning of the radial motions) linked with two cycles: Valach climatic cycle (VhCCy ? 4.1 ma, pulsations of the Solar System) and Raup-Sepkoski cycle (RSCy ? 26.78 ma, pulsations of our galaxy). Many of these moments, often perceived as tectonic phases or as important extinctions, led various global changes which allowed the sepa...

As a part of the Czech Historical Atlas project, the Institute of History of the Academy of Sciences of the Czech Republic and the Faculty of Civil Engineering of the Czech Technical University in Prague prepare a printed atlas devoted to the history of the former Czechoslovakia in the 20th century. The atlas is now in the process of creating and reviewing individual maps. This paper deals with the thematic division of the atlas, the use of individual cartographic methods and important notes on the creation of his...

ABSTRACT The specialized software packages dedicated to mine planning and design activity developed greatly in the past years. In order to take advantage of this software evolution, the available geospatial data, the information about the geology of the deposits, the surface morphology and the open pit models which are accessible in classic format, on printed paper, all the information must be converted in digital format for fitting in dedicated digital databases. The paper presents the steps taken in this digitiz...

Presently, most electronic navigation charts (ENC) are vector format maps based on the S-57 data model. This model uses the descriptive and spatial characteristics of bodies of water to create hydrographic information which can be used to solve such problems as: marine traffic monitoring, vessel route planning, maritime dangerous situation detection, etc. This paper presents an approach to maritime safety monitoring on the basis of intelligent GIS technology. GIS-oriented systems are often used for maritime safety...

Since the 1980s, intensive anthropogenic disturbances have affected the channel of the St. George branch that is the southern distributary of the Danube River. The meander cutoff programme since 1984?1992 induced different hydro-morpho-sedimentary impacts on the local distribution of river flow velocities, discharge, and sediment fluxes between the former meanders and the man-made canals [1]. These cut-offs lead to a shortening of the distributary by about 31 km and, consequently, increased the free water surface ...

We present developed model for decision support in environmental economics within geo-information management paradigm. We consider socio-economic geographically distributed natural-technical systems and use to manage them the basic principles of environmental economics and geo-information management in accordance with a complex approach that involve the integration of efforts of all sectors: society, government and business. We used Foresight technologies, theory of decision making under uncertainties, geoinformat...

Oak stands decline has been several times reported in the scientific literature, starting with the beginning of the twenty century. A brief overview is presented regarding the occurrence of oak decline in the Romanian extra-Carpathian region since 1900 until present. Six oak species having a significant economic and ecological status are affected - Quercus robur L., Quercus petraea (Matt.) Liebl.), Quercus pedunculiflora K. Koch., Quercus frainetto Ten., Quercus cerris L., and Quercus pubescens Willd. The literatu...

The dehumification of soils in the North Kazakhstan region is one of the most pressing problems due to the inadequate control of the cultivation technology of agricultural crops with the intensive occurrence of soil erosion. This paper considers the processes of dehumification of humus by the main types of soils in the North Kazakhstan region. The results of the research have demonstrated that humus in soil types has been decreased in 30 years from 1.78% to 30.2% since 1978 to 2018. The content of humus in 9 types...

It is important to gain a better understanding regarding the effect of frequent drought stress on biochemical and physiological processes in plants as well as on the plant population and community in ecosystem. One method of early detection and monitoring of water stress is by measuring the diameter changes of the stem using dendrometers. They can be used to determine not only the annual thickness growth, but also the distribution of the growth and the rate of expansion and shrinkage of the wood and bark during th...

Extensive research, conducted by Kazakhstani specialists in Earth sciences, resulted in accumulation of a big amount of information. Hydrogeological data are scattered and unsystematized, and it makes their processing and analysis very difficult. Therefore, it is necessary to create a unified information base, containing profile hydrogeological information and data from the related areas of knowledge, which will help to solve scientific and production tasks efficiently. Informational and analytic systems are devel...

The aim of the article is to get acquainted with what woonerf streets are by indicating their main features and functions. Particular emphasis will be put on how to design this type of street. First of all, an attempt will be made to indicate these communication routes, which can be transformed into woonerf type zones. Then, the physical elements of the street will be selected which need to be changed or improved. Eventually, the possibilities of arrangement the street area will be presented. In addition will be p...

The article presents design and verification of a road embankment supported by reinforced retaining walls with a passive facing system, which was the most optimal and effective method to design a road embankment in a cramped space in a flyover intersection of highways. The cross section presented in the paper consists of three roads at different levels, when the road in the middle is placed about 8 m above the other ones. The design was done using the analytical computational model and the numerical modelling, bas...

The expense of restoring of excavators cutting bodies is increasing these days in the Most Basin area, primarily the replacement of tooth because of abrasion expense. The main reason is the complicated geological situation of overburden rocks, first of all the occurrence of sands and hard structures in the overburden cuts rocks in the deep horizons of open pit mines. The main target of this article is the brief description of realised research. It is design of the optimum methodology of bucket tooth cutting body h...

The transportation infrastructure belongs among the factors, which significantly affect the development of economy and living standard in the country. The development of the highway network, therefore, belongs to priorities. Slovakia has a programme of completion of highway network with length 660 kilometres with the priority of connection to the international multimodal corridors. The preparation and construction of highways sections are gradually shifting from flat territory of Slovakia to the hilly and mountain...

The article deals with the analysis of the possibility of observing body and clothes surface temperatures changes of large groups of people using thermography. Additional heat gains from people play a significant role in buildings where many people stay simultaneously. In those buildings, there is increased emission of heat from people, which has a significant impact on the microclimate of those buildings. This applies especially to sacral buildings, as well as other types of buildings where many people are inside...

The microclimate of the urban environment is influenced by urban development, road surface, distribution of green areas. The city, especially with a highly developed industry, pollutes the atmosphere above itself, increases its turbidity and thereby reduces the influx of solar radiation. Such changes in the microclimate of the urban environment often occur as a result of changes in urban development, artificial changes in the relief, and the cutting down of forest plantations. Due to changes in the urban environme...

The article presents the possibilities of using post-mining facilities and areas for tourist and geo-education purposes, as well as the specificity and conditions of such ventures, from local initiatives to projects with international renown. Factors deciding about the success of investments using post-mining relics were analyzed, mainly in terms of conditions for the implementation of projects for protection and securing such remnants as well as economic and social results of the project in the long-term perspect...

Wild edible mushrooms are a valuable food with a high content of proteins, fibers, antioxidants, and they are characterized with its specific consistency, taste and flavor. Though, from an ecotoxicological point of view, they are a risk commodity because of their extremely high bioaccumulative capacity to increase the level of risk elements and contaminants from the environment. Environmental contamination of risk elements is currently one of the most serious problems in the world. Risk elements, because of its hi...

According to the evaluation practice minerals deposits have different levels of geological and feasibility study, so discounts is not only a tool for multi-temporal cash flows, but also an important tool for geological risks assessment. Thus, the determination of the discount rate should be based not only on the economic conditions for management of the mining enterprise, but also on level of geological knowledge, probability of reserves evaluation. Practical use of the discount parameters affects the commercial v...

The article deals with setting of the degradation of fibre-cement panels containing polyvinyl-alcohol (PVA) fibres. The degradation is being studied with a help of a soaking ? drying test. It is a long-time test, which is one of the series of tests (hot water test, frost resistance test, shrinking of panels, UV test), by which the degradation of panels is determined. The motivation for carrying out this test lies in searching for a substitute of asbestos-cement panels that cannot be used due to carcinogenic asbest...

For proper construction and operation of the industrial park there was proposed and already realised a 38 groundwater extraction well system from which optimum pumping rate is required to keep the groundwater level at required elevation. To address this challenge numerical groundwater modelling system using TRIWACO simulation package has been applied. The modelling package utilises finite element method (FEM) that can handle complex aquifer parameters for running quasi three-dimensional groundwater flow model. Bas...

Application of rubber at higher temperatures requires sufficient heat resistance. The experimental research was carried out with the rubber intended for use at higher operating temperatures as gaskets for caps in mining. The intakes during the operation of the rubber gasket are accompanied with physical as well as chemical changes that lead to thermal degradation of the material. The mechanical properties (tensile strength, elongation, Shore hardness, and abrasion resistance) of the examined type of rubber were de...

The stress state of a rock mass close to the Vostochniy open-pit, Olimpiadinskoe gold deposit, was studied with relief methods in the end-face measurement variant. The studies were performed at three observation stations within one engineering-geological rock block and identified the gravitational-tectonic type of acting stress field. The maximum component of the principal stresses is subhorizontal and acts in the zone of influence of the open-pit excavation parallel to the open-pit contour. Reconstruction of the ...

Soil and its irreplaceable functions are dependent on the soil properties. Porosity is one of the fundamental physical soil properties. It expresses the ratio between the volume of pores in the soil and the total volume of the soil in its undisturbed state. The aim of the contribution was to determine soil porosity of soil samples with different soil texture (originating in western Slovakia). Prior to porosity calculation, specific weights of dry undisturbed soil samples and bulk densities were calculated. To dete...

Heavy metals as one of the group of contaminants have great ecological importance determined by their ecotoxicity and ability of accumulation. The aim of the study was the assessment of the contamination of agriculturally used soils by mobile forms of heavy metals in Madunice, this area is situated on the right side of river Vah in Slovak Republic. Our work deals with contamination of agricultural used soils by mobile forms of selected heavy metals (Pb, Cd, Zn and Cu). 20 sampling sites were chosen and the analyse...

In case of the strong earthquake offshore Japan, tsunami wave approaches the nearest coast in approximately 20 minutes. So, time required for evaluation of tsunami danger is the key parameter for any warning system. The authors propose to determine the parameters of initial sea surface displacement at tsunami source (initial data to simulate numerically wave propagation) by a part of the measured tsunami wave time series until the first maximum. This is a clear and easy to apply stop criterium. Determination of th...

The analysis of the solid torrential flow in the Homoriciu river basin was done between the period 1970-2018 depending on the climatic data and the location of the studied area . The study of the morphohydrodynamic phenomena evolution in the studied area was also based on the comparative analysis This research work focuses on the complex phenomena of drainage liquid and solid production, the flow rates of rising and spreading of rain formation in the studied basin. of the longitudinal and transversal profiles of t...

The effectiveness of hydrological models application depends immensely on exact knowledge of parameters included in these models. Their experimental determination is often difficult and costly task. The alternative to experimental measurement of these parameters is inverse modeling when sought-in parameters are determined as a result of comparison of modeled and observed values of some physical quantities . It is assumed that the experimental determination of these quantities is not difficult. In this article, wit...

Determination of the velocities anisotropy and direction of fast and slow shear waves propagation in the reservoirs containing hydrocarbon deposits is important for the choice of a field development model. The paper describes computing technique the magnitude of the shear waves anisotropy and the assessment of the preferred propagation directions for fast and slow shear waves in the Akan oil field, Republic of Tatarstan, the Russian Federation. In the course of the work, the cross-dipole acoustic logging data were...

Anavarza (Anazarvus) ancient city has been established on an area of 143,000 m2 with a castle, stadium, ancient theater, mosaics, bathes, churches, gates of victory, aqueducts and stone graves. It is the largest ancient city in Anatolia. Anavarza City of Antiquity is situated near Dilekkaya village of the Kozan County, and it is approximately 70 kilometres to Adana city centre (Turkey). The history of the Anavarza goes back to 2100 years, and it has became the capital of Cilicia in 408. Archaeological excavations ...

Calculation of motion resistance of belt conveyor shown underestimation in comparison to results of conducted measurements. The main component of motion resistance for conveyors longer than 80 m are primary resistance. Furthermore, indentation rolling resistance can generate more ten half of them. Disproportion between measured and calculated values can be determined by the component which is predominated. This indicated the need to verify theoretical method of determining rolling resistance. To improve calculatio...

Research discussed in the present article is focused on the determination of the mining rail transport capacity while applying two approaches. The first one - a conventional one, is a calculation of capacity while using known mathematical formulas. The second one - an experimental approach, identifies the capacity on the basis of simulation application, as the simulation has remarkable potential also in terms of further research in the given area. The simulation model was created in EXTENDSim, a product of Imagine...

The safe operation of the installation of a winding shaft is ensured by the vertical continuity of the guiding and the vertical overlap of the moise cross section. When digging the mine shaft, the topographer has the task of conducting, besides the performance of the vertical work, the installation of moise gaskets and the guiding when in relation to the shaft axes. Guiding and moise assembly operations require increased attention, given the role these elements play in the subsequent work of the shaft and its smoo...

The European Directive 2009/28/EC - promoting the use of renewable energy - creates a common set of rules for the use of renewable energy in the EU. The goal is to limit greenhouse gas (GHG) emissions by setting national binding targets for all EU countries with the overall aim of making renewable energy sources account for 20% of the total EU energy needs by 2020. Within this context, the Flemish government wants to stimulate its citizens and its companies to make the transition to the production and use of renew...

This paper focuses on the capabilities of Geographic Information Systems (GIS) to develop databases that support alternative tourism and, in particular, wine tourism in Bulgaria. The main task of the paper is to collect and integrate existing public and open-source graphical and attribute data. We use GIS tools to create a database, an online register, and an interactive map of wineries and wine houses according to Bulgarian laws and tradition. We create a specialized spatial GIS database containing administrative...

In order to improve navigation on the Lower Danube area, some European projects are underway. The focus of FAIRway Danube project (2015-2020) is to provide current and harmonized information about shallow sections, water levels and water level forecasts. Available depths will be used optimally by adapting the location of the waterway to the current riverbed conditions. In parallel, FAIRway Danube is aiming at preparing the harmonized rehabilitation of the Danube and its navigable tributaries. The bilateral convent...