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The use of electricity in potentially explosive atmospheres has many features for which the issues concerning the design of electrical equipment and installations raise many difficulties. One of the significant difficulties is the implementation of conditions fort ensuring explosion protection even under the conditions of failure scenarios. For low current electrical equipment (interlocking, command, data communications, signalling) the assessment of explosion protection is often carried out by calculation using t...

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...

Cadastral maps are essential component of cadastral documentation. They are heterogeneous from many points of view and have several dissimilarities and imperfections. Only one half of them has been created in actual mapping campaign, thus with quality criteria which are sufficient for current requirement of modern society. The fact, that maps are in vector form, does not guarantee their accuracy and quality. The user must be extremely cautious when a digital image of the map is interpreted. The advances in technol...

Rural areas are antipodes to urbanized and industrialized territories. At the same time, rural areas are obligatory components of the sustainable environment and economic development of countries and regions. The rural area mostly depends on environmental factors. Ameliorative factors, i.e. the suitability for improving the performance characteristics of the area, have the leading role as well. These factors effect on the development of agricultural production functions (specialization) and on the rural areas soci...

Following socio-economic changes in Central Eastern Europe, the areas located near water bodies have changed, on a massive scale, their character from that of agricultural areas to that of areas developed with holiday buildings. These changes occur very rapidly, with no opportunity for municipalities to prepare comprehensive area development plans. Cadastral divisions performed to satisfy the new owners? needs do not ensure the sustainable development spaces that are particularly attractive in terms of recreation,...

?Dimensioning all the elements in the urban layout should not be executed in any other way but that which is in accordance with human scale? [1], [2]. Evolution of the development of towns and cities resulted in the development of various models of spatial layout and the relations between urban units and human beings. Ancient and medieval towns demonstrated compact spatial arrangement, which resulted in generating shorter journeys and provision of security for the inhabitants. However, the very dense network of st...

This paper refers on the result of an experimental work developed in a quarrying site aimed to test the reliability of geostatistical approach as an alternative tool in the assessment of spatial variability of professional hazards. The case study is referred to the exposure of workers to airborne dust generated from typical quarrying activities. In such a risk assessment procedure in fact, the most useful alternative method to personal sampling is represented by defining the space-time variability of the physical ...

The paper analysis the precipitations associated to the cut-off lows and their regional distribution induced by the air circulation types and the position of cut-off lows in relation to the different regions of the country, in Romania in 2014. Cut-off lows have been identified using geopotential, air temperature and circulation maps at 500 and 300 hPa levels within the region of latitude 40 to 50 В°N and longitude 15 to 35 В°E. To establish the atmospheric circulation type for each cut-off event, HYSPLIT model was...

The pore space is an important part of a rock that affects its mechanical and petrophysical properties. Among numerous methods for pore space characterization X-ray computed microtomography (?CT) is one that provides information on the spatial distribution of pores within rocks. Followed by image processing and analysis, detailed information on orientation and shape of voids can be obtained. Hence, it is a good method for microstructural studies on the porous space. The aim of this paper is to present spatial vari...

X-ray microtomography (?CT) has been increasingly popular among geoscientists interested in reservoir rocks? pore space, as it enables studying much more parameters than solely the porosity. Because carbonate rocks can be dramatically complex with respect to their permeability, porosity, and mineral composition ? they need advanced tools like ?CT to be studied in details. Petrographically and petrophysically variable carbonate sample withdrawn from the Bro?sko Reef, West Poland was examined by means of the ?CT-bas...

Underground exploitation of mineral resources is often carried out in a watered rock mass. Dewatering of rock layers disturbs its geomechanical equilibrium, consequently resulting in deformations occurrence on the terrain surface. Furthermore, modeling of rock strata dewatering and related land subsidence is still a complex issue, mostly due to unambiguous qualitative and quantitative characteristics of rock mass. Presented research aimed at determination of dynamics of hydrogeological changes and land subsidence ...

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...

The difference between an environmental project management and construction project management is in the difference between usual business operations and need of the environment sustainability. In civil engineering we need accept business operations as the core of the project management with focus on sustainable development. This article deals with the specifics in project management concept, which includes environmental components in the project structuring and providing. Nominated project manager or chief engine...

Uranium-238 is a parent radionuclide for several radioactive stable chemical elements, which presence in the therapeutic mud can cause negative consequences for patients. This paper presents the results of the study of the U-238 specific activity in the mud sediment cores of Pelenkino Lake and Bolshoi Tambukan Lake situated in two different geological and hydrological regions in the south of European Russia. The relationship between the U-238 specific activity in the mud, its pH, Eh values and the organic matter c...

The solving of the project of the Ministry of Agriculture of the Czech Republic dedicated to sustainable agricultural management in the North Western Bohemia is under way from 2015 to 2018. The main attention of the 2017 and 2018 research is devoted to the research of experimental areas retained to the natural succession. The second research problem was the development of the geological parks as a part of the restoration activities. The last part of the paper is the brief information about first step of historical...

We deal with the target of our work that is to provide a general overview of the Slovak scene relating to the Startups. Our aim is to analyze the area of innovative entrepreneurship and start-ups in individual sectors of the Slovak economy (mining industry, renewable energy sources, tourism, etc.). It is necessary to state the reasons that lead to the development of startups and to analyze their impact on the economy of the national economy in terms of creating new jobs. We have explored successful and less succes...

During the satellite SAR (Synthetic Aperture Radar) data analysis it is highly important to remove all the noise components from the image. The most critical disturbance that affects radar images is speckle noise. Many different filtration methods to reduce this noise have been proposed in the literature up to now. This paper presents the results of SAR image filtration using the methods of mathematical morphology. During this work over 20 different morphological filters have been tested ? both classical ones (ope...

Manganese occurrences (eg. dendrite and/or surface coating) are highly usual products of many geologic environments. Morphology, spectroscopic and chemical properties of the manganese occurrences may vary depending on mode of environments. This study is concern with manganese occurrences along the minor cracks of Miocene ignimbrite unit, which has a wide range of exposure in the Afyonkarahisar region of the inner western part of Anatolia. The host rock has light gray, yellowish white in color and characterized by ...

The Power Plant Ostroleka is one of many in Poland, which is coal-fired. Fly ash, as is well known, are combustion by-products, which are mineral residue from burning coal. Their phase composition depends mainly on the quality of fuel (coal) and combustion conditions. In the mineral composition of the examined ashes one has identified minerals such as: glass, quartz, mullite, spinels, hematite. Spinels present in the fly ash can be a source of some metals, and due to the magnetic properties of some of them, are ea...

In mayonnaise formulation various types of oil (sunflower, rice and olive oil) were preliminary used. In the production of low fat mayonnaise, the most sensorially acceptable oils were used. Low fat (LF) mayonnaise was produced at different levels of oil with different types (xanthan gum, XG; agar, A; and a combination of XG and A, 1:1) and levels (0.00, 0.20, 0.40, 0.60, 0.80 and 1.00%) of hydrocolloid gums. All samples were compared to traditional full fat (FF) mayonnaise. The most sensorially acceptable oils we...

In mayonnaise formulation various types of oil (sunflower, rice and olive oil) were preliminary used. In the production of low fat mayonnaise, the most sensorially acceptable oils were used. Low fat (LF) mayonnaise was produced at different levels of oil with different types (xanthan gum, XG; agar, A; and a combination of XG and A, 1:1) and levels (0.00, 0.20, 0.40, 0.60, 0.80 and 1.00%) of hydrocolloid gums. All samples were compared to traditional full fat (FF) mayonnaise. The most sensorially acceptable oils we...

Underground mines from Jiu Valley have as objective the extraction of hard coal, used for energetic purposes. Exploitation activities are associated with the extraction of significant amounts of sterile, derived from opening and preparing works, but also from coal processing activity. The sterile rocks are stored in waste dumps of different sizes, which must undergo periodic stability analysis. This paper aims to estimate waste dumps stability, by using fuzzy theory, the results of such an analysis being of qualit...

The results of stable isotopes 37Cl and 81Br research in ground brines of sedimentary and intrusive rocks are presented in this paper. More than 60 ground water samples from wells and boreholes throughout the Siberian Platform have been analyzed by the method of Isotope Ratio Mass Spectrometry (IRMS). There are some differences of geological and hydrogeological sections between northern and southern parts of the Platform. The ground brines in northern part of the Platform have exclusively Cl composition with Ca or...

The stable isotopes oxygen-18 (18O) and deuterium (2H) are naturally abundant in precipitation. Due to fractionation effects, a seasonally variable distribution of water isotopes occurs in the precipitation of temperate and continental regions. Water isotopes, being conservative tracers, are ideal for investigating subsurface flow processes. They reveal information about soil water fluxes like evaporation, transpiration, downward infiltration and others that are difficult to determine by other techniques. We are u...

Nizhne-Karmalskoye super-viscous oil deposit is located within the western slope of the South Tatar arch of the Volga-Urals anteclise. In the structural plan, the deposit is a sedimentary accumulative uplift-bar of 13 km in length, 3-5 km in width and 35-50 m in height. The uplift-bar was formed at the end of the Ufa age. According to one of the hypotheses, the sand body has a delta-baric origin. The body is composed of well-sorted fine-grained graywacke sandstones, which are now reservoir rocks of the super-visco...

Nematodes belonging to the genus Trichinella are zoonotic parasites with a high impact on the animal trade and human health. Foodborne pathogens of Trichinella genus are known as causative agents of human trichinellosis, a disease that is a public health hazard. According to the Commission Regulation (EU) No. 2015/1375 all animals, which are potential carriers of Trichinella spp. larvae and are for human consumption, must be tested according to one of the approved tests. For assessment of developed benzanthrone lu...

Nematodes belonging to the genus Trichinella are zoonotic parasites with a high impact on the animal trade and human health. Foodborne pathogens of Trichinella genus are known as causative agents of human trichinellosis, a disease that is a public health hazard. According to the Commission Regulation (EU) No. 2015/1375 all animals, which are potential carriers of Trichinella spp. larvae and are for human consumption, must be tested according to one of the approved tests. For assessment of developed benzanthrone lu...

Recent studies emphasized rather skeptical views shared by the Romanian stakeholders with regard to the public recognition of the central role of soil resources for assuring food security as well as the fundamental role that soils play in climate change adaptation. As stakeholder views are particularly important for understanding their values and needs, the paper aims to explore the perceptions with regard to soil quality, soil threats as well as the existence and effectives of the national and European policies o...

In this paper we emphasized the main standards with major impact in managing geospatial information in present, focusing on their importance on spatial data infrastructures. A proven importance of standards is to ensure the interoperability. The interoperability can be seen as the ability to link datasets and related services of different types and from different sources in order to minimize costs, redundance and possible problems. There are two main categories of geospatial standards: information standards and te...

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 optimization of the station points stability position in the monitoring of civil engineering structures displacements in service stage is a necessity due to the fact that depending on the location of the station points the visibility and therefore the accuracy of the determination is maximized. Because sometimes these monitored objects are no longer isolated to afford a wide range of positions of observation points, sometimes even in urban agglomerations that greatly narrow this area and the optimization of th...

For a long time, various researches have been realized about the presence and distribution of Ag, Au, Pb, Zn and their distributions research in different horizons, but there are few researches that are available with statistical analysis related to their distribution which gives a better information about their distribution. Research on the method of distribution by statistical methods are quite accurate methods and give us a clear presentation of the way these elements are distributed in the Trepca Mining. There...

The research and development activity is becoming increasingly important in the current economic context. The emergences of new products, increasing the share of a saturated market or even entering a new market are now based on a research and development activity. The amounts allocated for this activity must be in line with the objectives set by manufacturers in the building materials industry in Europe. For them it is very important to increase their turnover, but they also seek to increase their notoriety, in ad...

For a balanced life, milk and dairy products occupy an important place in the gastronomic culture of each country and are highly appreciate for their nutritional values. Cheese, as the most consumed milk ? derived product, it turned out to be a food product rich in nutrients that was the subject of numerous studies because of its contribution to nutrition and health. There are a very large number of cheese types,with different composition, due to many variations in production process, and that's why it is difficul...

Increasing tendency for fresh food - fruits, vegetables, and herbs - consumption worldwide and also in our country shows the important role they play in the diet. In this case, it is not only good looks, nice color or taste and aromas that are considered to be important, but especially their nutritional value, rich in sugars, vitamins and minerals necessary in the diet of the human body. They also have the advantage to be fit for consumption without any processing which could reduce their nutritional value. The pu...

Waste disposal and management is one of the urgent issues faced by mankind at the current stage of development. Waste car tires pose a significant threat to the environment, which makes their efficient processing particularly important, as the volume of this type of waste generated each year worldwide is estimated at more than 10 million tons, of which 1 million tons are produced in Russia. The paper provides a description and calculations for a process system that can be used to dispose of waste tires by their st...

The article represents the results of a multi-year (1995-2011) monitoring of wind waves and wind parameters in the northwestern part of the Black Sea. The author gives a clear-cut presentation of the regime and extreme characteristics of wind waves and wind speed of the northwestern shelf of the Black Sea. The measurements were carried out on a stationary offshore platform Golitsino-4, located 50 km from the shore. A twisted resistive wave gage with a sampling resolution of 4 Hz and the possibility of registering ...

Since 2017, the Russian government has begun to pay more attention to digital technologies in agriculture. The Ministry of Agriculture of the Russian Federation proposed the creation of a state subprogram "Digital Agriculture", in addition, an analytical center was created within the Ministry to monitor the state of agricultural land. Intensive introduction of information technologies in agriculture, promises productivity growth, investment attractiveness of the industry, improving the quality of products with a s...

The strategic management of the mining companies involved in the extraction and processing of energy raw materials still lacked a strategic tool to help determine the patterns of extraction of energy resources in the development of the external environment or external conditions. In this article, the authors sought to find a possible econometric model of black coal. Research is based on data available from the macroeconomics and mining of the selected mineral, which are analyzed using the multidimensional regressi...

In southern Algeria, energy consumption is inevitable due to the hot climate and the summer period, which extends for more than half a year, it is necessary to take a strategic approach to ensure the sustainability and maximum comfort while reducing energy through passive and active architectural. Forthis reason, to reduce this consumption, it is necessary to improve the performance of the building. As a result, windows and ventilation become key points to improve in terms of Losses. These two elements may be at t...

Brief The JOINTISZA Project (Strengthening cooperation between river basin management planning and flood risk prevention to enhance the stats of waters of the Tisza River Basin) creates transnational cooperation for next two years in the largest sub-basin of the Danube Basin. The project is funded through the Interreg VB Program of the European Union, the Danube Transnational Program (DTP 2014-2020) component, Priority Axis 2 (Responsibility for Environment and Culture in the Danube Region), Component 2.1 (Strengt...

The present study seeks to relate the focal mechanisms of moderate earthquakes, regional tectonics and the tectonic stress distribution, in Albania. We have analyzed 33 moderate earthquakes (2.2 ? MW ? 4.9) recorded in the time period 2013-2015, by the Albanian broadband (BB) seismic network. Events were located within the upper crust, in the depth range 0 ? h ? 17 km, showing the present day active tectonics. Formal stress inversion of the focal mechanism data, support the variation in the direction of the actual...

The North Dobrogean Orogen is located between the Sf Gheorghe fault to the north and Peceneaga -Camena to the south. Structurally, it involves four tectonic units with NW-SE direction: M?cin unit, Niculi?el unit, Consul unit and Tulcea unit. The M?cin unit comprise a large variety of rocks assemblage, including sedimentary rocks, metamorphic rocks and igneous rocks. All this rocks assemblage belongs to several subunits developed on quasi-parallel NW-SE direction. M?cin unit has been interpreted as nappe folded ove...

Strengthening a weak soil foundation is a contemporary problem in engineering geology and geotechnical investigations. Such strengthening can be achieved, among others, through the use of different types of geosynthetics. They improve the mechanical parameters of the reinforced layers, increasing the load bearing capacity and extending the durability of geotechnical structures. Such solutions are commonly used to strengthen a weak subgrade in transport investments and civil engineering. This paper presents structu...

Both rural areas and agriculture related to them serve a crucial role in shaping the economic growth and social development of the country. Structural changes occurring in Polish agriculture are determined by numerous factors of an external and internal nature. One of the major ones is the agricultural policy pursued by the state. Economic and social changes taking place in Poland after 1989 posed new challenges to Polish economy, including agriculture and the countryside. They are associated with a deep restructu...

The paper presents results of experimental study of microstructural changes in rock specimens under the effect of high pulse pressure due to shock waves. Specimens of strong rock and coal were placed into special steel preservation ampoules. Shock waves were generated by explosion of trotyl blocks. The study involved electron microscopy, micro- and nanoindentation and laser spectroscopy of particle size. Images of specimen surface fragments were obtained by electron microscopy at various scale levels before and af...

The low head hydropower development ?Capra VI and VII? consists of two small hydropower (SHP) stations accomplished in sequence on the homonym stream in Arge? County, center Romania, each of them less than 1MW. The SHPs, study case for this paper, follow the European directives regarding the water, the environment and the green energy. Their accomplishment was based on the existing delimitation of the minor river bed for which it was noticed that the ichthyofaunal environmental conditions are not entirely achieved...

The low head hydropower development ?Capra VI and VII? consists of two small hydropower (SHP) stations accomplished in sequence on the homonym stream in Arge? County, center Romania, each of them less than 1MW. The SHPs, study case for this paper, follow the European directives regarding the water, the environment and the green energy. Their accomplishment was based on the existing delimitation of the minor river bed for which it was noticed that the ichthyofaunal environmental conditions are not entirely achieved...

The purpose of the article is to assess the regional structure of the upper Triassic - lower Cretaceous sediments (Mulussa F and Rutbah reservoirs), which serve as an important targets for hydrocarbons production and exploration to the center and Middle East of Syria. The upper Triassic - lower Cretaceous sediments are approximately of 800 m thickness consist mainly of floodplain clays interbedded with medium to fine grained fluvial sandstones. In addition, there are dolomites and clay dolomites present in the low...

The properties of materials obtained during the thermal treatment of gypsum depend on structural defects in the multiphase gypsum-anhydrite system. Analysis of the crystal structures of gypsum (CaSO4В·2H2O), bassanite (CaSO4В·0,5H2O), ?-anhydrite (?-CaSO4) and natural anhydrite (?-CaSO4) allowed us to identify a common structural motif in each of these structures. This is an irregular hexagon formed by chains of ?Ca?SO4?Ca?SO4?. During successive thermal transformation of gypsum into anhydrite, this structural mot...