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The article reveals the role and importance of the coal mining industry in the structure of the fuel and energy complex of Russia. It reveals the main problems of the coal mining organizations in Russia, both at the macroeconomic level and at the level of economic entities. The possible ways of increasing the efficiency of the coal industry are investigated on the example of Kuzbass. Russia has one of the world's largest mineral resources potential, which is the basis of guaranteed economic and energy security of ...

The article deals with the problem of ownership of lands necessary for the operation of SHP by different entities. Several variants of solutions leading to the settlement of ownership relations to immovable property were elaborated. To ensure access, it was necessary to propose a range of service. The non-standard assessment also included solving problems related to the valuation of a flat in a small hydroelectric power plant, pricing and runoff and other engineering structures related to the hydroelectric power p...

The study of greenhouse gases (GHG) emissions in the atmosphere is one of the important parts of climate research, because according to the reports of the United Nations Intergovernmental Panel on Climate Change, the growth of GHG content in the atmosphere is the most likely cause of modern global warming. Such studies are of great importance in the arctic territories, where the climate effects are most pronounced. The Institute of Industrial Ecology of the Ural Branch of the Russian Academy of Sciences (Yekaterin...

A CubeSat is a type of miniaturized satellite for space research. A CubeSat can consist of one or more 10 cm ? 10 cm ? 10 cm cubic unit. A mass of any per unit is not exceed more 1.33 kilograms. Satellite operating conditions are quite extreme. And one of the most important problem which should be resolved for any CubeSat on the design stage is the thermal stabilization for any of its component. Thermal effects can have a significant impact on the operating characteristic of the nanosatellite and its components, i...

Adsorption on a suitable adsorption material is among the most frequently used methods in water treatment. In terms of plant operation, filtration (sorption) process represents a simple, effective and economical friendly method of heavy metals removal namely for the possibility of using a large scale of substances with a sorption ability ? sorbents. Oxides, oxyhydroxides and hydroxide containing iron are among the most frequently used sorbents of the heavy metals removal. The quality of the treated water (pH, sili...

Landslides are mass movement processes with severe consequences on the environment and human communities, and their identification and mapping is an important step in analyzing, evaluating and managing their potential risk. The results obtained in identifying areas of landslide activity may vary depending on the data sources used. The present paper is testing the landslides inventory at the scale of a commune in the Moldavian Plateau, Eastern Romania, using two different data sources: orthorectified images (2010-2...

In the environment are present heavy metals such as Cu2+ and Pb2+. Metal-processing industries, mineral processing, the manufacturers of inorganic products and large scale coal users, such as public utilities are the major sources of heavy metal pollution. These heavy metals are toxic, are non-biodegradable, and they pose potentially lethal risks at high levels. Chemosorption is emerging as a potential alternative to the existing conventional technologies for the removal and/or recovery of heavy metal ions from aq...

Spacecraft flights using light pressure energy are no longer a fantasy, but a reality of the near future. Such spaceships can be used to fly to large and small planets, to meet with asteroids and comets, to perform special tasks in the vicinity of the Sun or near the Earth. Of particular interest are the unique capabilities of such devices in remote areas of the Solar system, even near the solar corona. Here, the solar sail can simultaneously play the role of a power plant and a reliable screen, which protects the...

Among the restoration works in Northeast Romania, one can distinguish architect Ioana Grigorescu (1914 ? 2006). She was employed at Department for Historical Monuments and she designed inside existing buildings, spaces dedicated for the museum purposes as interpretation centers. Her work team used experience acquired during previous exhibitions spaces where the expressiveness of folk architecture forms where implemented. This creative architect conducted the restoration works of 17th and 18th century buildings, am...

In Latvia, land is the key natural resource, and the use of it for production purposes is of great importance. The utilised agricultural area in Latvia totalled 1.93 mln.ha, of which 47% or 905 thou.ha was grassland. Meadows and pastures had a 70% proportion, while permanent grasses had a 30% proportion in the cropping pattern for grassland. Therefore, the overall aim of the present research is to identify the grassland area and the geographic locations of and the cropping pattern for grasslands in Latvia. To achi...

Soils are the foundation of food production and food security. Many agricultural practices can potentially mitigate greenhouse gas emissions (GHG). Managed organic soils are the largest sources of GHG emissions from agriculture. In Latvia, organic soils have been little researched to date. Therefore, the overall aim of the present research is to identify the geographical locations, quality and uses of organic soils in Latvia. To achieve the aim, the following specific research tasks are defined: 1) to analyse the ...

Seasonal and interannual variability of the Ekman pumping velocity in the Black Sea is studied based on ERA-Interim reanalysis data of 10 m wind speed for the period 1979?2015. Upward Ekman pumping prevails in the annual cycle due to the predominance of the cyclonic wind curl over the Black Sea. The maximum upward Ekman pumping occurs in winter. In June, the basin averaged pumping velocity is directed downwards. The magnitude and spatial distribution of the Ekman pumping velocity depends on the direction of the wi...

Competition in air transport is growing and is a significant factor influencing airlines in the development of the strategy. In this article, we analyse the Bucharest-Tel-Aviv line which is operated by three airlines Tarom, EL AL and Blue Air, which are not allied and have no bilateral agreements. These companies are therefore direct competitors, and in our analysis, we are more closely examining their pricing policy over the reference period. By analysing the data we compared the possibilities of the aforemention...

The results of the field studies of heavy metals in snow cover presented in this work for urbanized territory of Almaty agglomeration first time. Seventy-five samples were collected during the period from February 5 to March 10, 2018 at 25 permanent monitoring sites. Samples of snow were analyzed for heavy metals (Cu, Zn, Pb, Cd) using ??S-7000 (Shimadzu). The obtained quantitative data were used to assess the nature of the spatial distribution of metals in the snow cover of the study area and based on them were p...

The paper focuses on the determination of studied risk elements (Cd, Cu, Pb and Zn) in the upper layer of agricultural land located in the inundation zone of the Stiavnica River in the cadastral area of Dudince village. The studied area is characterized by historical contamination of floodplains. The contamination vector is represented by the Stiavnica River that drains the nearby area of Stiavnica Mountains, an important mining area in the past. Analyzes to determine the exchange soil reaction and the content of ...

High qualitative and quantitative requirements for dimension stone on the building materials market make producers update the methods used currently to assess natural fracturing in areas of interest at various levels when prospecting potential zones. As most well-exposed areas are already being quarried, new areas are most efficiently prospected using statistical and mining-geometric methods and the data obtained are analyzed. Locating dimension stone prospects is a multi-stage process. Analysis of large areas per...

The monitoring of the construction behavior is one of the important activities carried out to determine the state of construction, subject to various natural and anthropogenic actions at a given time. In Romania, the activity of rockfill dams monitoring is regulated according to the importance category (A, B, C). The Rausor Dam is located downstream of the confluence of the River Rausor with the river Targului, which springs from the Iezer-Papusa Mountains. The dam is located at 7.5 km from the village of Leresti,...

The accuracy of transference from the underground surface of the topographic reference system is determined by the mining work on topographic transmission papers. If mining is vertical, topographic operations are complex and require permanent preoccupation for improvement. The paper meets this requirement, presenting possibilities for improvement of junction methods (surface, underground) of topographic elements used for mechanical transmission. The mechanical method of transmitting the underground surface referen...

Optimization is an iterative iterative process of improving the distributions of distributed computer applications obtained through the reengineering process so as to ensure the efficient allocation of resources for the implementation of the stages included in the reengineering. The article mentions how to choose each new goal and studies the model already implemented to start the project. It starts from the design of the existing application, and then applies the succession of stages specific to re-engineering. O...

This paper describes the results of the project which uses information from core lab studies in reservoir simulation in order to improve the quality of the forecasting ability. Samples of core were selected for each of the rock type in order to study wettability. Studies on the determination of the contact angle of wetting were carried out by the device, which allows determining the surface tension and contact angle in the formation conditions. The obtained values were applied for each of the five rock types for f...

Interferometric data processing (InSAR) for extraction of information about the Earth terrain heights is one of the general guidelines in development of contemporary space-based radar systems. The InSAR processing for building the digital elevation models (DEM) and terrain displacement maps includes a phase noise suppression step, which is usually performed by different image filters, as well as spectral and adaptive spectral filters (mean/boxcar, spectral domain filtration with different window functions, Wiener,...

Reinforced concrete tanks are currently used for storage of different substances and products. Such as bulk material but also various liquid and gaseous substances. Most often they serve as reservoirs for drinking water, for wastewater treatment and storage of various technical liquids. Rectangular tanks are less used as cylinders, but they have their advantages, less sensitivity to unilateral load, and better use of space for a multi-tank system. The rectangular tank solved in this article is filled with water. T...

Spreadsheets often contain valuable data that are difficult to process due to an unclear structure. For this reason, spreadsheets also called semi-structured data. Table structure recognition and data extraction is an important area of research. Tables may contain statistical reports, schedules, grade books, results of research or product catalogue. Depending on the purpose, tables have a different structure. In this paper, the authors propose an approach for extracting information from "list" type spreadsheets. T...

The Lublin Coal Basin (LCB) is situated in the eastern part of Poland. Bituminous coals occur in Carboniferous Layers under the thin overburden built from Jurassic, Cretaceous and Neogene sediments. Most attractive seams (8 -12 to 18 balanced seams), with the mean thickness of about 1,3 ? 1,7 m (rarely under 2 ? 3 m) appear deep, most often at depth 750 ? 1000 m. They are cut by rare net of faults. Within the surface 1 200 km2 eleven deposits were documented, of which the only one is exploited. Total resources of ...

This paper has as main objective the statistical processing of geological information from hydrogeological wells on the ROIL16 ? Plain Vlasia groundwater body. The first step was the collection of detailed information and data, such as geological and hydrogeological characteristics, the features of the superficial deposits and soils, an inventory of associated surface systems, an estimation of the flow directions. The geological information was taken from the water wells of National Network Monitoring of Romania. ...

There are several thousand stone-shaped megalithic stone piles in Europe that have been built between the late Stone Age and the Middle Ages. Their cultural and historical significance has been deliberately studied only in a small number of cases. It is not surprising, therefore, that different stories about such megalithic sites are more widely known than the results of archaeological research. This is particularly true for impressive prehistoric complexes, which today are transformed into tourist attractions. On...

Foresight has been on the political and research agenda already for decades, nevertheless there is still no common understanding up to which extent application of strategic foresight impacts environmental sustainability. This is also not sufficiently explored in the body of literature within the research community. Thus, the study aims to contribute to the identified gap by developing a framework for application of the strategic foresight for ensuring environmental sustainability in policy decision making. The stu...

The purpose of our research is to develop and implement a long-term strategy for organizing independent work of students through the formation of students? autonomy culture in a foreign language setting. To achieve the goal set and verify the main provisions, we used the methods of theoretical and empirical research. Theoretical investigation included an analysis of pedagogical and psychological literature on the development of students' cognitive activity and learning autonomy in higher education. Empirical metho...

Global climate change and resources depletion are the main reasons why it is necessary to constantly seek innovative approaches to the green economy. The 21st century economy should be a "green" economy, represented by repeated and sustainable use of resources. At the same time, the impact of environmental problems has an increasing impact on the economy or health and the quality of life of the population. In Slovakia, one of the biggest environmental problems is mainly the issue of waste management. While the mun...

During an earthquake, a strong ground motion arises not only in the focus, but it also extends over long distances. Strong motion data have to be used in the Earthquake Early Warning (EEW) for a quick response of rescue services and monitoring of building structures. As the speed of the waves propagation in the ground is sufficiently high (about a few km/s), the warning time must be little, but sufficient to alert the people. Structural and earthquake engineers can use strong motion data to verify or improve desig...

A great number of agricultural structures such as irrigation and drainage systems and anti-erosion facilities like bulk shafts, terraces, grassed run-off holding collectors, barrages, wind protection belts, etc. were put into operation during the last century in Bulgaria. The Agrarian Reform of the 1990-s posed unfavorable conditions for preservation and use of this valuable inheritance. Currently, small-sized, fragmented and scattered land use causes deterioration of land quality and infrastructure. The regulator...

The process of training on the training complexes depends on the realism of the user's interaction with the developed virtual world. Despite the implementation in recent years of many ways to manage virtual objects, the problem of realistic human movement remains relevant. The use of conventional treadmills is justified in the entertainment field. In the field of training of the personnel of ergatic systems it is necessary to model more precisely a relief of a surface on which the user moves. Therefore, in this ar...

Based on the exergetic analysis the paper analyses the conduct of a simple Linde cryogenic refrigeration cycle looking for its weaknesses and trying to find ways for operating or structural improvements. The exergetic analysis reveals that a major exergy destruction is due to heat transfer across a finite temperature difference in the recuperative heat exchanger. The optimization procedure points out that this exergy destruction reaches a minimum if the temperature difference between the high (hot) and low pressur...

The term smart growth is defined as developing an economy based on knowledge and innovations (EC, 2010). According to Eurostat (Eurostat regional yearbook 2014, Eurostat yearbook 2018, etc.), an expansion of the knowledge-based economy segment is observed in the European Union, which leads to a structural redeployment of the economy. Accordingly, growth in the knowledge-based economy segment becomes an important research problem in each EU Member State. The authors analysed this process in three Baltic States, pla...

The research was carried out in the ecosystems of sessile oak and beech within Vizantea forests of Experimental Forestry Base Vidra. There were located three plots of 1 ha each, where information on the biometric features of component trees was collected. The purpose of the research was to know the structure and functioning of the sessile oak and beech crops stands in the Curvature Carpathians, as a result of their current status, in the context of sustainable forest management and climate change over the last dec...

Urolithiasis is one of the most frequent urologic diseases and occurs in at least 1?3% of the population, and most often in people of working age (20?50 years old). This disease is characterized by the formation and progressive growth of pathogenic mineral formations - urological (urinary) stones in the abdominal system of the kidneys, their possible migration through the urinary tract, which leads to hemo - and urodynamic disorders, the emergence and progression of inflammatory, sclerotic complications. The recog...

Stand structural diversity, defined as the diversity of trees in stands, can be indicative of overall biodiversity and habitat suitability, useful in forecasting stand growth, and provide within stand detail for forest inventories. The diversity analysis provides more detail to the traditional stand structure descriptions and enables the approach to stand management more consistent not only with the timber production, but also with other productions and values of the multi-benefit forest stands, and/or transformat...

Were described a quartz-veins zones which localized within metamorphosed rock of South Muya block Northeast part of Western Transbaikalia. During the research was received structural and material characteristics quartz veins different orientation of the creeks an Otvesny, a Krivoy and a Bambukoy river. Based of kinematic analysis, crack paragenesis highlighted and genetic nature is determined structural deformations. Thus was found out that paragenesis of quartz veins which has been studied was educated as a resul...

The methodology ICZM is the modern approach to the realization of the concept of the sustainable development of marine regions. Modern geoinformation systems (GIS) are the optimal means for presentation of spatially distributed data on an electronic cartographic basis. Complex management of the coastal zone region can be organized on the bases of this data?s for analysis, monitoring and management of a marine health resort. The automated information systems of support and of decision-making are the basis for forma...

The oil fields of the Vereysky horizon (C2vr) are regional oil saturated on the Tatarstan Republic and located in the oil-and-gas-bearing Serpukhovsky-Vereysky basinal complex. In the sections are interbedding of various facial types of limestone with marls, clays, and sandstones. From below upwards along the section, the proportion of the clastic component increases and the carbonate component decreases. In the anticline structure, Vireysky oil-saturated reservoirs form multilayers series. Oil reservoirs are conf...

The paper considers the model of formation of students? environmental and legal competence; gives a comparative analysis of the three components of the environmental and legal competence: motivational and values-based, cognitive and activity-based components; identifies the four groups of students: preschoolers aged 5-6 years, primary school students aged 7-10 years, middle school students aged 11-14 years, and senior pupils aged 15-18 years.The results of the survey, testing before and after the introduction of t...

One of the properties of coal, used to evaluate the qualitative features of this mineral, is the microhardness of its particular components (macerals). Unfortunately, that parameter is relatively seldom used in analyses of this substance. Microhardness measurements are mostly used in research into metals, ceramics or composites; they are also sometimes used to analyse minerals and rocks. The objective of the paper presented here was to conduct coal's microhardness tests and to determine the relationship between st...

The article presents research on kinetics of sinter reduction used as a charge in the process of simultaneous smelting of zinc and lead, commonly known as Imperial Smelting Process. The aim of the study was to determine the effect of reductivity of various sinters produced from sulphide raw materials and from waste oxides on the operation of a shaft furnace. Real sinter samples from the sinter plant operating at the ISF furnace were collected for the experiment. The experiment was carried out in a resistance furna...

Urban forests play an important role in ecology of human habitats and provide various eco-services. Urban forests improve and maintain air and water quality, act as local refugia for plant and animal communities, hold populations of economically important species (such as pollinators), and act as recreational areas for people and pets. All urban forest organisms are directly or indirectly affected by human activities often leading to changes in biodiversity. The aim of our study was to determine soil microbial bio...

This paper presents the experimental results regarding the evolution into time of the road concrete quality with blast furnace slag BS, obtained by the UPV test for measuring the propagation velocity of the ultrasonic pulses compared with the compressive strengths of mechanical tests The UPV and the compressive strengths of the concrete containing blast furnace slag were determined at the age of 28, 100 and 150 days on 150 mm cubes on road concrete made with conventional materials and on road concrete with blast f...

Satellite images provide a large amount of data necessary for studies and applications related to fields like meteorology, agriculture, surveying, geodynamics, army etc. The complete data combined with complete software for satellite data processing allow us to create a powerful tool that can be used for taking decisions. Adding software that are able to combine different data coming from various areas, you can obtain an indestructible weapon that can provide you information regarding the environmental monitoring ...

Directional couplers are widely used in microstrip technology, but their dimensions are tied to the operating frequency. Since the smaller the frequency, the longer the longitudinal length of the quarter-wave segments and the greater the overall dimensions of the coupler. For this reason, use miniaturization, which allows to reduce the area occupied by the device on the substrate, with negligible loss in performance. In addition, there is an economy of the material used in the manufacture of the microstrip device....

In hydrosystem tailraces, behind end fixings of spillway facilities, scour basins of considerable depth and length are formed at high rates of the flow. This is associated with the violation of the extreme load mode during the construction and operation of hydrosystems, insufficient design length of fixings in tailraces, and inefficiency of installed baffles. Baffles based on soft water-filled shells are proposed as additional protection facilities of operating hydrosystem tailraces. The morphological analysis of ...

The article devotes to experimental study of briquetting of woodworking waste, such as sawdust and shredded bark. The aim of the work is to obtain regression dependencies linking characteristics of briquetted raw materials and parameters of moulding process with properties of produced fuel briquettes. Controlled factors of the experiment include moisture content of the raw material; average particle size of the material; percentage of sawdust and bark in the material; moulding pressure; moulding speed. The target ...

The methodology of obtaining the morphometric characteristics of large ice features by means of the improved technology of water thermal drilling with the drilling rate record to a logger is discussed in the article. Possibilities of diverse application of technology of thermal drilling (also for study of physical-mechanical ice properties) and perspectives of its development are shown. Peculiarities of data processing and analysis by the internal structure of ice ridges and stamukhas are considered. Specific char...