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Biomass belongs among renewable energy sources and its representation in national energy strategies is increasing due to the limited supplies of fossil fuels. One of the options for substitution of fossil fuels is short rotation cropping systems for woody biomass as a method of reclamation and revitalization of anthropogenic soil profiles during restoration activities in the areas after brown coal mining. The scope of the project "Methodology of sustainable agricultural management in anthropogenic damaged landscap...

3D laser scanning digitization delivers digital copies of existing buildings in its natural form and helps architects and industry specialists keep historical monuments in a database and render their restoration very accurate and cost-effective smaller. Also, the digital copy contributes to preserving and protecting the monument, and at the same time it can be passed on to future generations in the most accurate way. Laser Scanning is a new geodetic technique through which can be measured fully automatically land ...

Humus comprises one of the largest reservoirs of carbon on the Earth. Nevertheless, humus and humus-derived products have been utilized to a relatively small extent in industrial applications. This is in contrast to coal, which was the basis of much of the chemical industry in the latter part of the nineteenth and the early part of the twentieth century, and petroleum which is the major raw material for much of the present day chemical industry. The purpose of this paper is to document an ability of a humus-like m...

The El Nino-Southern Oscillation (ENSO) plays a key role in the interannual variability of the global climate. Its prediction and recognition has been a big challenge to the atmospheric and ocean science modeling community despite significant advances in understanding, improved models, and enhanced observational networks. The present study proposes a new approach by using the support vector machines (SVM) classification model of machine learning algorithm to identify and possible predict the future ENSO events. Th...

Tsunami in the Black Sea is a relatively rare phenomenon. Because of its rare occurrence and small volume of full-scale data, tsunami hazard of the Black Sea region has not been sufficiently studied. However, the chance of tsunami waves is still on. In the XX century, four known tsunami phenomena were recorded by marigraphs. These include two events that occurred in 1927, events of 1939 and 1966. Vertical sea level fluctuations were recorded in several points on the Black Sea coast. However, true sea level heights...

This report summarizes initial findings from a case study investigating the response of groundwater resources in the North of Crimea to intensive exploitation over recent years. There is the problem of increasing groundwater salinity. The aim of this study is to examine the response of groundwater in the area of the Isthmus of Perekop to current intensive abstraction, investigate groundwater recharge, and forecast possibility of future quality degradation. This territory was chosen as for the case study: hydrogeol...

In the presented article the approach to establishment of complex noise exposure in conditions of urban territories of a large settlement with application of geoinformation systems is proposed and tested. The main advantages of using geoinformation systems in conjunction with specialized software products used to perform and visualize acoustic calculations are described. Approbation of the proposed approaches was carried out using the example of Perm with the identification of sources of road noise as the main con...

At present creation of a system of incentives for large-scale development, adaptation and introduction of the newest domestic technologies for developing hard-to-recover oil reserves is a very important task of the oil and gas industry in the Russian Federation. It is connected with depletion of traditional deposits and deterioration of mining and geological conditions of production. The sequence of creation, development and commercialization of any technology in oil and gas industry includes four elements: resear...

Today, the increased focus on the Arctic zone is influenced by a number of reasons: The Arctic zone of the Russian Federation (the Russian Arctic) has the potential to become a new oil and gas region for our country; the military and strategic importance of the Arctic; the future outlook for the Northern Sea Route. The development of the Russian Arctic aims to enhance the social and economic growth of the region in line with the priorities set forth by the state policy and based on the range of socio-economic issu...

The analysis of the system principles of stability of the coastal infrastructure in the point of view of marine spatial planning and development of marine facilities of coastal and marine territorial systems of the Russian Arctic showed that at present there is no unified approach to determining the assessment of the stability of coastal infrastructure and environmental impacts caused by several factors. To account for medium- and long-term climate, environmental, economic, legal and geopolitical changes in the Ar...

The need to provide the highest level of protection in the industrial spaces with explosion danger led, on the one hand, to the development of new types of dissipative textile materials with protective role against static electricity and, on the other hand, to the development of test methods of these materials for the purpose of assessing compliance with the requirements specific to prevent the initiation of explosive atmospheres. The assessment of the compliance of the dissipative textile materials used at the ma...

Radon is dissolved in ground water and can be transported from the source with water into the buildings. Subsequently indoors, when water is exposed to air, radon is released. Showers and sprays are a prime release method and the greater the water usage, the greater potential radon problem may occur. Outdoors, radon is quickly diluted to very low, not problematic concentrations but indoors, it can concentrate significantly. Although radon in indoor air is indicated as the second leading cause of lung cancer, not e...

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

Rare earth elements form the group of 15 elements from the lanthanide group (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) and two elements from the scandium group (Sc and Y). The lanthanide group can be divided into two subgroups: Light Rare Earth Elements (LREE) and Heavy Rare Earth Elements (HREE). The variability of the content was determined for LREE (Ce ? cerium, lanthanum ? La) and elements from the scandium group (Sc ? scandium, Y ? yttrium). The analyzed samples of bituminous coal were c...

Angle of friction ?, cohesion c and undrained shear strength ?fu are the strength parameters that characterize the mechanical properties of soils. These parameters determine the bearing capacity of a cohesive subsoil. The value of strength parameters depends on many factors, e.g. soil type, consistency, stress state, stress history, loading type and loading mode. The paper presents the influence of plasticity index Ip on strength parameters in cohesive soils. To determine the dependence of strength parameters on t...

The property that influences the binding properties of slag is its hydraulicity. The term ?hydraulicity? is now used internationally to describe cements and other binders that set and harden as a result of chemical reactions with water and continue to harden even if subsequently placed under water. There are a few exceptions but these chemical reactions generally involve calcium, silica, and aluminum constituents that react with water to form a whole family of calcium silicate and calcium aluminate hydrates. The c...

Recently, hydrothermal catalytic process in reservoir conditions (in-situ upgrading) has got remarkable attentions. In this study, the feasibility of the in-situ upgrading of Ashal?cha crude oil (Tatarstan region, Russia) using steam and catalyst co-injection was investigated at the temperature of 350 °C under high pressure for 24h using a stainless-steel 500-ml batch reactor. The changes in the density/API gravity, viscosity, chemical composition (SARA fractions, the composition of saturates), and elemental compo...

The main reason for the rapid development of e-commerce is the possibility of personalization and individual customer service. Modern e-commerce systems have diverse and well-developed capabilities to analyse and manage customer relationships. In most cases, however, these analytical systems are based on processing and analysis of structured customer data, those that are collected at registration and stored in the database. It is important to note that many of the customers when completing registration forms do no...

Forest is the main resource of Latvia. Forests occupy 52% of the total land area of Latvia. Since ancient times forest has provided humans with basic necessities, yet over the course of time the role of forest has changed. Nowadays lumber production plays the primary role, while gathering the other forest products represent forest sub-uses. The research aim is to analyse the production of non-wood forest products in Latvia from various perspectives. The research employed the following methods: monographic and grap...

The geometric models of wireless sensor networks are analysed. The selection conditions of an optimal network model are proposed. To improve information security measures, the visualization method of changing the signals parameters with consideration of the number of information nodes and their location in space is developed. The development and advanced use of wireless sensor networks require constant improvement of their reliability, durability, and performance as well as a high level of information security. Th...

The International Terrestrial Reference Frame defines and maintains the global reference coordinate system. It is based on the observations from space geodesy techniques at geodetic stations. Beside collocated stations with more than one space geodesy technique the geodetic stations at stable regions without local movements must be used. So, during maintenance of geodetic stations must be secured that the stations are not subject to local movements. The case study is presented for the station at the Geodetic Obser...

Current environmental problems, which are resulting from the construction in building sector require instrument to help with reducing resource consumption and environment pollution. Life cycle Assessment (LCA) is of the building sector popularly used tool to quantify the environmental impacts. There is a large number of impact assessment methods for quantification of environmental impacts in life cycle. LCA approach can be directly applied to the building sector. However, buildings are exceptional products and hav...

The contribution is focused on asphalt mixtures in wearing courses of pavements from the point of view of their performance based, road user properties and traffic noise emissions. In the article there are described the options and examples of objectification of pavement surfaces influence on traffic noise. The author's inform about the condition of pavement with wearing course from SMA 11 (Stone Mastic Asphalt) asphalt mixture which was constructed on expressway R1 from grade-separated junction of Zvolen in the d...

Physicochemical characterization of Varna mineral water was made, allowing classifying the type of water based on its macro and microelement composition. A comparative analysis of 23 physicochemical parameters of three water sources placed on the territory of Varna has been carried out. These included color, smell, temperature, turbidity, active reaction, content of ammonium ions, ammonia, nitrites, nitrates, electrical conductivity, total hardness, calcium, magnesium, sulfates, phosphates, chloride, total iron an...

During extraction of minerals by the open method, and especially in the areas where the dumps are located, as a result of dust emissions into the atmosphere, an unfavorable ecological situation develops, which tends to increase dustiness in quarry work areas as a result of increasing production capacity. In the paper, it is proposed to combat dust formation by mining masses impregnation with liquid preventive agents compositions. The proposed impregnations were selected depending on the season and climatic conditi...

The choice of support design for mine excavations driven beyond the influence zone of stoping in the conditions of permafrost is governed by the service life of the excavations, geomechanical behavior of surrounding rock mass and by working temperature range of ventilation. The research findings on influence exerted by temperature on stress state of rock mass around a single tunnel are presented. Based on solution of quasistatic thermo-elastic problems, the mechanisms of change in the stresses and displacements at...

The East Carpathians Bend region includes a multitude of natural discharges of saline groundwater. Some of these outflows - such as the mud volcanoes at Beciu and a couple of springs at Lep?a - have previously been shown to be sensitive to the intense seismic activity which developed in that area. Yet no attempts have so far been made for exploring relationships that possibly existed between those brines chemical characteristics, and the local geo-structural setting: the latter consists of a stack of successively ...

One of the parts of sustainable mobility is surely the quality public transport service. It includes the suitable vehicles, as well as the stations, bus stops and various other integrated transfer points of the public transportation system. For the optimization of using these transfer points, as well as overall optimization of public transport services, it is necessary for us to obtain a traffic data in a real time. Nowadays it is not enough to know just the exact position of the vehicle on the map via GPS, with i...

The concepts of danger, uncertainty and risk are often used intuitively and inaccurately not only in common language but also in the media where it is unfortunately commonplace and last but not least in scientific circles. The clan defines uncertainty, danger and risk, and graphically visualises the aspects it encompasses. The graph is defined by two dimensions, namely probability and objectivity. The notion of danger is the least unequivocal. This is an object property that is a threat. Uncertainty was mathematic...

Natural environment plays the principal role in the physical as well as socio-cultural adjustment of past and present human populations as evidenced by anthropological and material culture records. This is well-observed particularly among the aboriginal nations occupying intermittently pristine northern territories absent of major human migrations, ethnical gene-flows and associated historical inter-cultural exchanges. Specific natural factors linked to regional climate and geography, persisting for a certain time...

Many cities in Slovakia are built alongside rivers and the socioeconomic use of rivers is reflected in their urban fabric. Rivers, as sources of water, energy and as sewage effluents, have been used for production purposes and have been surrounded by industrial areas, which today often lose their functions. Brownfields, abandoned and derelict, unused and underused sites along the watercourses, become today areas of urban revitalization and redevelopment. We have explored the spatial, architectural and urban planni...

Aqueous-dispersion acrylate compositions with different contents of silica nanoparticles (NP) were prepared, which allowed to obtain top transparent coatings with improved abrasion resistance. The nanoscale silica used in the work was obtained by a gas-phase method using high-frequency induction discharge (HFI) in the air atmosphere. The average size of silica nanoparticles measured by transmission electron microscopy (TEM) and laser scattering was 23.5 nm. TEM photos of silica nanoparticles showed that silica was...

In order to make selection methods more efficient and to make improvement works perfect in developing new mustard cultivars at the Agricultural Research Station in Lovrin, we carried out a series of research and biometrical measurements starting from the necessity of better knowing specific variability, quantitative features, productivity features, the way they are passed on hereditarily, and the intensity of the correlations between them. The main objective of our research was the establishing the general and spe...

The ambition of universities is the implementing of new progressive teaching methods using state-of-the-art technical equipment. The general aim of modern teaching methods is to provide students with the widest range of information channels that can be used to obtain information and data. Students are specifically challenged to use this information. Based on this, students acquire their gained knowledge. This modern model prefers current pedagogy. One of the projects focusing on new trends in teaching is the proje...

This research focuses on the energy demand and the possibilities of covering the energy needs with renewable energy within the territory of Republic of Moldova. The evaluation of the alternative energy resources is extremely important as the Republic of Moldova mainly depends on Ukraine for imported energy. Developing new sources of energy will partially ensure the stability of the economy. The renewable energy will allow the balancing of the payments and will also strengthen, at least to a certain extent, the cou...

Management of used electrical and electronic waste is a huge problem both on a local and global scale. The mass of collected electrowaste in Poland currently reaches approximately 5 kg per one inhabitant, and by 2021 it is to increase to 11 kg. According to estimates, only ca 30-40% of used electrical and electronic equipment in Poland is subjected to recycling. The rest is dumped at scrap yards or is illegally processed in the grey zone. Its considerable part is not processed in accordance with the standards and ...

The explored area of Banat, located in NE Serbia, with its geological and geothermal characteristics, represents an area with extraordinary ecological potential. The geological structure of Banat is represented by various complexes of Neogene and Quaternary deposits. The Neogene sediments are mostly composed of sandstone, shale, marlstone, sand and gravel. Mesozoic igneous complex is represented by dacites, andesites and basalts. During Quaternary a relatively thick succession of genetically different types of sed...

Water can be found everywhere and plays an important role in human life and equilibrium of the environment. The agriculture, industry and urbanization have had and have a special impact on the biodiversity and water necessity. To establish the line at which a pressure is considered significant, meaning if due to this pressure the surface water do not reach ?good status? it will be made an analysis of pressure and impact on the recommendation of the Water Framework Directive and national methodologies, but taking i...

The subject of this paper is the assessment of the influence of the construction and design elements on traffic safety at level crossings in undermined areas. The first part is dedicated to level crossings in the Czech Republic and accident rates at level crossings in the Moravian-Silesian Region. The following part describes the in situ experiment, which was conducted at selected crossings with different types of safety arrangements, intensity of traffic and traffic moments. Our results were compared with the res...

The low ionospheric monitoring by very low and low frequency (VLF/LF) radio waves generates big databases containing information on high temporal resolution relevant to specific spatial areas. These data allow us to detect and model perturbations induced by different events. In this paper we present analyses of data relevant to periods around natural disasters. Our attention is focused on the tropical depressions which have been detected before the hurricane appearances in the Atlantic Ocean and the earthquake occ...

Since ancient times, the coastal areas were natural habitats that host a wide variety of fauna and flora species and which, from an anthropological point of view, are the most populated areas of the planet. At the same time, these areas, which include deltas, lagoons and marshlands, are particularly vulnerable to the effects of global change (climate modification, sea level rise and fluctuation of sediment input) that may be triggered by anthropogenic activities (global warming due to greenhouse gases produced dur...

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...

Continuous improvement and technical sophistication of modern machinery and equipment, extreme conditions of process operations dictate strict requirements for structural materials to ensure their high strength, workability and reliability. A perspective way to improve the operational and technological properties of aluminum alloys is various external impacts on the crystallization processes. Such methods of preand crystallization treatment of molten metals will allow to get the target structure and mechanical pro...

Scattered settlement in the rural and mountain regions is typical. Technical conditions of roads is a key factor deciding on the possibility of accessing certain locations by ambulance in such areas. The objective of this study is the assessment of the passability of mountain roads within the scope of ambulance access with the use of GIS and the national cartographic database. From the roads in the district, the authors selected unpaved roads, with the surface of bare ground. Then, the buildings located at the dis...

Biochar is a product of pyrolysis of biomass such as plant residues, organic wastes or etc. Being highly porous material that slowly releases nutrients, biochar is considered as an effective alternative fertilizer. It is reported that biochar properties are depending on the pyrolysis regime (e.g. pyrolysis peak temperature and duration), however information about quantitative dependences remains poor, especially for biochars made of specific substrates such as chicken manure. In this study, properties of biochars ...

Plants do not grow axenically in nature, but host a diverse community of microorganisms, termed as plant microbiota, colonizing different niches, both inside and outside their tissues, in the endosphere and ectosphere, respectively. These microorganisms are involved in major physiological processes, such as plant nutrition and plant resistance to biotic and abiotic stress factors. The aim of the research was to investigate the normal microbiota of rare plant species (listed with different degrees of danger in the ...

The methane is one of important of GHG emissions gas from Latvia agricultural sector. There are two main sources of methane emissions: first enteric fermentation and second manure management. One of GHG mitigation measure is livestock feeding system improvement and food additive development with GHG reduction effect. The aim of this study was to evaluate inulin impact on methane and carbon dioxide balance in Holstein Friesian crossbreed calves rumen. Fifty days old Holstein Friesian crossbreed calves were divided ...

The Krka River is a pristine karstic stream and unique model system for the understanding and interpretation of environmental records in tufa precipitating rivers worldwide. The river is characterized by 7 main and numerous small tufa barriers grown in a constant and dynamic process depending upon many physicochemical factors. An evaluation of the quality status of the pristine karstic, tufa depositing aquatic environment of the Krka River National Park based on the analysis of mercury contents was performed for t...

The paper presents a structural model of the smart farm to improve environmental protection. This model is based on a digital platform that integrates all the elements that participate directly or indirectly in decision-making into agricultural farm.Retour ligne automatique An intelligent farm must manage optimally and efficiently in the spirit of sustainable agriculture and environmental protection the following components: agricultural lands, farm energy balance, inputs and outputs in accordance with the applica...

The paper presents the results of the experiments conducted to study the effect of stimulating maturation and ovulation with different types of hormones on the main parameters characterizing the artificial reproduction process of Silurus glanis L. European catfish used in artificial breeding experiments (body weight = 4.0 - 10.0 kg / ex., age 5-8 years) were raised in ponds within the experimental base of the Fish Culture Research and Development Station Nucet, Romania. For induction of maturation and ovulation, c...