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The paper presents a patented and copyright protected concept of constructing a shaft lining that goes through salt rock massif having strong rheological properties and being susceptible to leaching. In the case of salt layers, especially on significant depths (over 1000 m) the relative convergence of the heading contour may amount even to 0,18 m/year. That results in the fact that any other method of securing the shaft lining, e.g. by making it flexible, will not be sufficient to ensure the stability of the shaft...

The work described the obtaining and studying the properties of alginate-PLGA matrixes containing agglomerates of hydroxyapatite nanoparticles. Hydroxyapatite (HAP) nanoparticles were obtained by controlled deposition in the presence of a stabilizer - sodium citrate. Two types of nanoparticle lamellar (30 to 50 nm in size) and rod-shaped (150 to 200 nm in length) were used in the work. The size and morphology of the hydroxyapatite nanoparticles were studied using a transmission electron microscope. The composition...

The work described the obtaining and studying the properties of alginate-PLGA matrixes containing agglomerates of hydroxyapatite nanoparticles. Hydroxyapatite (HAP) nanoparticles were obtained by controlled deposition in the presence of a stabilizer - sodium citrate. Two types of nanoparticle lamellar (30 to 50 nm in size) and rod-shaped (150 to 200 nm in length) were used in the work. The size and morphology of the hydroxyapatite nanoparticles were studied using a transmission electron microscope. The composition...

In the present paper, we present a part of the results of the questionnaire survey, which took place in the municipalities of 93 municipalities in the Presov region. The questionnaire contained 27 questions which, in addition to formal information on the municipality are focused on the occurrence and periodicity of floods, the time axis of the floods, the current state of preparedness of municipalities for floods, as well as the improvement/ worsening of the situation in the case of applied flood protection measur...

An exceptional occurrence can generally be regarded as a manifestation of risk. In order to handle it, it is necessary to have sufficient amount of information about the risk itself as well as about potential sources and means to deal with the situation it evokes and the preparedness of citizens. In Slovakia, it is mainly the risks of natural character which are, for the purposes of crisis management, evaluated based on a methodology from the year 1994. The ever-extending list of potential risks leads to the need ...

Large areas of oil contaminated soil are an urgent problem in oil producing regions, such as the Republic of Tatarstan (Russia). One of important factors of soil self-restoration is the presence of members able to decompose hydrocarbons in the microbial community. Different groups of genes are responsible for decomposing different hydrocarbon groups: for example, alkane monooxygenase gene and naphthalene dioxygenase gene are the predominant genes corresponding to first-step hydroxylases involved in the metabolism ...

The possibility of regeneration of plants from somatic and genetic cells open the way of in vitro storage of the genotypes. The utilisation of such a method has a lot of advantages as: relatively reduced space for preservation of a large number of multiplicated clonal plants, the plants are preserved free of pathogens and viruses, in special storage conditions, the plants don?t need special treatments during preservation, the material has an adequate form for establishing nuclear stocks which make possible rapid p...

The possibility of regeneration of plants from somatic and genetic cells open the way of in vitro storage of the genotypes. The utilisation of such a method has a lot of advantages as: relatively reduced space for preservation of a large number of multiplicated clonal plants, the plants are preserved free of pathogens and viruses, in special storage conditions, the plants don?t need special treatments during preservation, the material has an adequate form for establishing nuclear stocks which make possible rapid p...

The perforation channels are the only conduits between the reservoir in production and the producing well, so it is quite obvious that their parameters seriously affect the productivity. Under this highly volatile oil price environment aiming for the best productivity has the highest priority. For this reason, the need for understanding the effect of the perforation parameters on the inflow is urgent. In the previous years, Pasztor has proposed a new concept to calculate the pressure drop caused by the perforation...

To date, the most problematic are the research in the field of mechanism, intensity, regularity, place and time of development, and most importantly the dynamic manifestation of the karst process. One of the most important directions of fundamental research is to establish general regularity of spatial distribution of structural forms of arrays and their corresponding karstogenetic role. Naturally, these studies need to a methodological basis. Localization of the karst zones and separate cavities is the basis of p...

The research deals with cyclic processes. The cyclic processes are those exogenous geomorphological processes which are characterized by the repeating sequence of changes. These processes include landslides, snow-slips, and some others where activation of the process is followed by the stage of its recovery, such as microrelief recovery, vegetation and soil cover recovery. The process occurs under the influence of two groups of factors: local factors independently activating separate sites (the local activation) a...

The North Caucasus Federal district is one of the most difficult in terms of its geological location. So, more than a third of the district is mountainous territory. The landslide process is developed in almost all areas. Landslide-bulk processes within the GFCS are mainly developed within the Greater Caucasus. Agriculture forms the basis of the economic complex and in the agro-industrial complex 53 per cent are crop and 47 per cent are livestock. The main directions of development in crop production are the produ...

When new constructions are performed near existing tunnels, emergency situations are often reached. Emergencies affect both the safety of the old tunnel and the stability of the natural environment. Emergency state parameters are examined for the causes of this degree of uncertainty. On the basis of an example from the practice, technical guidelines and measures are proposed to overcome the accidents and to permanently restore the security of the existing tunnels and sites affected by the new construction. Recomme...

In modern Russia, geotourism activity is not paid enough attention, there are no regulatory base, the generally accepted system of concepts and terms, a single classification of geological and mining tourism resources. The value of the mining heritage objects in the total assessment of the tourist and recreational potential of the territories is understated, they are not always taken into account in the schemes of recreational zoning. The problems of development of geotourism are considered on the example of the N...

Sports facilities need to be controlled at every stage of their implementation. Examples are certified athletic objects that must meet many conditions starting from the appropriate length treadmill arches that create it, the foundation of additional elements (jumps, viewports) to the declines in the track surface. Conducting measurements such an object requires a lot of work. Often before repair work, it is required to make detailed measurements of levelling. This allows you to determine the status of the current ...

Temporary condition of water resources in the world, the prospects for their security of countries are a matter concern. The world situation with water resource is clearly not satisfactory and remains disturbing in general. In many regions there is co-quantitative depletion of water resources, their deficit becomes increasingly stressful. It is given the modern availability of fresh water in Europe. Russia occupies a leading position according to the total volume of freshwater. However, it is experienced a signifi...

The study of the relief transformations caused by human activities is one of the most important problems of modern geomorphological studies. The study of the anthropogenic impact on the nature and relief in particular and forecast of changes is particularly important in solving the problems of the economics and sustainable development of the country what is to be considered in complex with the problems of environmental protection and rational use of natural resources. The human activities during the underground mi...

The article concerns the problems occurring in the course of modelling risk areas in the course of hazardous substances propagation. Defining risk areas is a task of the utmost importance with respect to the safety of human lives. Modelling of explosion risk areas is not easy, particularly because we consider a situation in which significant amounts of hazardous substances are released. However, in order to define such conditions, a series of factors affecting the modelling of risky situations were presented in th...

The waste water from the food industry consist of waters of transport and washing of the raw material, technological waters, the condensation or water cooling system, waters resulting from washing and disinfecting rooms of manufacture, machinery and packaging, waters of sanitary facilities. These contain significant quantities of solid residues, represented by the scrap of raw materials, discarded products, unusable tailings from products, etc. The waste waters from the food industry is characterized by a high con...

The international conventions regarding the climate change, namely the Kyoto Protocol and the Paris Agreement, include the recommendations for international organisations that are responsible for the supervision over the transportation other than land transport. The recommendations refer to the efforts of these branches of the economy to reduce global CO2 emissions. It has been assessed that the maritime transport is the source of around 800 Mt of CO2 per year emitted to the atmosphere. Given the forecast regardin...

Due to the depletion of free-milling raw materials the involvement of new types of deposits is the strategy of developing mining industry of Russia. The black shale raw materials show interest as a non-traditional source of precious metals since its genetic and positional gold-carbon connection. The research is aimed at solving the problem of enrichment of sulphide ores, counting for more than 40% of the reserves in Russia. The aim of the research is to develop and scientifically substantiate the scheme for proces...

On the present paper we want to highlight the evolution of the main crops in terms of cultivated areas and the yields obtained in the center of Banat [6] and also the harvest loses produced by endemic diseases for the most important crops. The area where we collect data was on the territory of Sagu, S?nandrei and Bucov?? settlements, all located in the center of the Western Planin of Romania. These diseases are endemic because they are produced by pathogens which are present in this region on the same crops each y...

The effect of K2CO3, K3PO4 Na2CO3, and Na3PO4 on transesterification of rapeseed oil (RO) with methanol was investigated to evaluate their potential for application as biodiesel production catalysts. All anhydrous alkaline salts catalyze transesterification reaction. Higher yield than 95% of rapeseed oil methyl esters (RFAME) was attained in the reaction time from 10 to 300 min. Potassium salts have significantly higher catalytic performance than Na2CO3 and Na3PO4. However, potassium salt recovery from reaction mi...

One of the ways to maintain the normal gastrointestinal tract microflora of poultry is to use prebiotic supplements in their feed. Among the prebiotics used in poultry farming, there are additives based on mannooligosaccharides from the cell walls of the yeast Saccharomyces cerevisiae. There are no similar domestic prebiotic drugs available, which determines the necessity and relevance of their development. For the production of mannose-containing hydrolysates, there was studied the process of hydrolysis of mannan...

One of the ways to maintain the normal gastrointestinal tract microflora of poultry is to use prebiotic supplements in their feed. Among the prebiotics used in poultry farming, there are additives based on mannooligosaccharides from the cell walls of the yeast Saccharomyces cerevisiae. There are no similar domestic prebiotic drugs available, which determines the necessity and relevance of their development. For the production of mannose-containing hydrolysates, there was studied the process of hydrolysis of mannan...

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 results of the studies have shown that the total C reserves of the dark coniferous forest phytomass of the southern taiga in the south-eastern part of the Western Siberia vary from 75.8 to 129.0 t/ha in secondary birch forest and from 48.9 to 110.5 t/ha in fir forests. The analysis of the production process in dark coniferous forests of the southern taiga done using such parameters as absolute value of the C biomass growth, specific annual production of wood and efficiency of assimilation apparatus work, has d...

On the base of unsaturated polyester resin and nano powder fillers, polymer concrete (PC) was produced applicative in aggressive underground conditions. The curing agents of the resin for the polyester resin were Akcobalt 6% (cobalt 2-ethylhexanoate mixture) and Akperox A1 (Methyl Ethyl Ketone Peroxide-MEKP). Ultrafine powder was produced by grinding of a coarse mixture on the PULVERISETTE 7 premium Line planetary mill by a dry method. Selection and designation of concentrations of aggressive media - sodium sulfat...

The recovery factor of gas reservoirs is highly dependent on various factors such as the type of drive mechanism, the initial reservoir pressure and the abandonment pressure. A higher attention is required to enhance gas recovery from reservoirs associated with water influx. Exploitation of this type of reservoirs represents a challenge for production operators in the sense that they have to find viable technical and economic solutions in order to increase the gas recovery of reserves. The selection process for th...

The example of ecologists? educational programs creating of Bachelor and Master levels in the Kherson State University is offered in the article. The priority of higher education defined environmental training of personnel competent in solving the problems of the Ukraine Black Sea region. Established the following key subject areas of educational projects: rational use of natural resources; optimization of nature management in the coastal zone of the Black and Azov Sea; ecological safety; conservation of biodivers...

Significant parts of important aquifers in Bulgaria are affected by the long-term in-situ leaching of uranium, using acid in borehole systems with reinjection. This is the case with the Momino uranium deposit formed in the lower part of the Neogene-Quaternary sedimentary complex, filling the Thracian depression. In this complex is formed one of the main sources of water supply in this part of the country. In order to assess the actual status and to predict the future changes in the quality and composition of the g...

This article is referring to an analysis regarding the project management of a big size energy efficient commercial building in Romania. There is made a project management analysis status for the construction building project, according to its approved design for the execution. After that, there is shown the project management status analysis for the first operational year, right after the end of the building construction. There are presented the main aspects of the project management tasks for the developed comme...

The paper aim was to analyze the awareness of eco-labelling on the market, the need for information on the subject and also the type of date which may be considered to be included in the contented. In order to analyze the promotion degree of sustainable development through eco-labelled products, three case studies were analyzed: detergents, household appliances and textiles consumption. Considering that eco-labelled products have a low environmental impact throughout their lifetime, a long utilisation would implic...

Pigments of the inhibitory type are the active principle of most primers used to protect metals from corrosion. Developers of anticorrosive paint and varnish materials seek to replace chromium-containing pigments, which widely used until recently due to their toxicity, with more environmentally appropriate choices. These include ferrite pigments. It is known, that the most spread method for the synthesis of ferrites, which are complex oxides or salts of ferrous acid, is the joint calcination of iron oxides with ox...

Due to EU environmental legislation focused on the reduction of waste, all post-consumer tyres must be reused, retreated or recycled. Rubber derived from post-consumer tyres is utilised in a number of engineering applications, however the market solutions for steel components are still not discovered. The main objective of the research was to develop the method of the valuable steel tyre cord application in the construction sector. Studies were conducted on recycled fibres modified concrete properties to examine t...

The Arctic coastal zone is very sensitive to environmental changes and anthropogenic impacts. The western part of the Russian Arctic is well studied because there is a lot of petroleum-gas deposit mines, especially on the Yamal peninsula, however data about the soil properties of the coastal zone does not appear much in the published literature. This is because people who investigated in the coastal dynamics do not study the soil properties, and vice versa, those working in the geoengineering survey do not publish...

Magnesium oxychloride (MOC) cement, also called Sorel cement is a type of non-hydraulic cement, formed by mixing magnesium oxide powder with magnesium chloride solution. It was developed in 1867, shortly after the invention of Portland cement. MOC cement has many properties superior to Portland cement including lower carbon emission, lower thermal conductivity, higher fire resistance and excellent bonding ability to a wide range of fillers. For these advantages, MOC cement has been conventionally used for making f...

Property investment is predominately determined by the characteristic features of the good. The specifics of the real estate is shaped by a group of physical, economic and institutional-legal characteristics. The most important from the point of view of the investor involve: stability in place, durability, diversity, deficit, location, protection against inflation, loan security, capital protection, reduction of current expenditure, consumption. Because of the features mentioned above real estate is considered a v...

In recent years, bio-economics and alternative energy sources have become increasingly important in the economic environment of the European Union. The reasons for this development are not only environmental, but also economic benefits. The Union is seeking to increase investment in alternative energy sources, thereby promoting sustainable development, new jobs and the circular economy. Alternative energy sources, also known as renewable energy are inexhaustible sources of energy that do not pollute the environmen...

Various methods are used in the mining of minerals, where the transport of material is an integral part. This paper deals with the transport problem of backfill material from surface stock to underground tank. To solve the problem is applied the capacitive calculation of transport using 2 trucks and a loader. The calculation is complemented by graphic models. The backfill material is available on 5 surface stocks. It is possible to transport the material directly to the workplace from each heap, which is not effec...

Background: The role of reporting on non-financial data and Corporate Social Responsibility (CSR) is constantly growing. Environmental information is of great importance for this information. There are no proposals for methods of obtaining this information using the existing accounting information system. For this purpose, the author proposes to use the pro-ecological value chain, which then can be a good ?base? in generating management environmental reports. Methods: The author used literature analysis in the fie...

This paper presents and supports a speculative hypothesis, the essence of which follows. When continental margins in zones of convergence are buried beneath thrust sheets, fluids expelled from the margin sediments travel into the foreland basin and the continental interior. These tectonic fluids have key roles in phenomena such as faulting, magma generation, migration of hydrocarbons, transport of minerals and metamorphism. The thrust sheet, crudely speaking, acts like a great squeegee, driving fluids ahead of it ...

Relevance of results. In modern conditions, the recycling of natural resources in industry seems to be one of the important directions of their rational use of resources. Growth in the output of industrial products requires the involvement in production of an increasing number of natural resources, which are mostly non-renewable. As a result, there is a depletion of natural resources and the formation of significant amounts of waste. Territorial innovation clusters represent a new effective form of territorial pro...

To improve the technology of opening and development of oil fields for increasing the completeness of subsoil use, the prospects of using the electric pulse method of drilling are discussed. Validated the concept of creating an electric pulse tunnel system based on submersible source of high-voltage pulses with controllable formation of work space for increasing its maneuverability and creating special technological outputs in a rock mass for forming a cluster of slant and horizontal boreholes with most complete c...

Among the main environmental problems of Russia, the problem of wastewater treatment and the problem of accumulation of solid municipal wastes are currently highlighted. In these conditions, it becomes fundamentally important to introduce environmental management directly in the places of waste and waste water generation, in particular at the objects of housing and communal services. The article considers the prospects of office greening as the smallest unit of housing and communal services, amenable to direct man...

Article presents issues relating to the chances and curtailment of the use of planning concepts to shape mountainous areas, where development is based on tourism. Spatial planning has for a long time been regarded as a means for protection of environment and in particular the protection of areas with eminent natural attractions like for example mountainous areas. Recent flood showed that having no well-chosen planning concepts for upper river sections effect on damage and danger to human life in these places. The ...

The goal of this study is to construct doctrinal and legal grounds of the doctrinal and legal grounds of the complex modelling of legal regulation of right-and-duty of an individual on providing the comfort conditions of environment with authors? scientific and practical proposals. This article consists of five chapters and conclusion. The first one is devoted to the problems of intensification of the processes of the technological modernization of the modern society. The second one is about legal regulation of th...

The paper is focused on the assessment of the public interest in the case of carrying out of investment projects on waterways. The realization of projects on waterways has very wide spectra of whole societal impacts, which include technical, economic, environmental and in some cases also historical aspects of investing. The objective of the paper is to introduce methodological steps for the evaluation of partial variants of investment project on the waterway from the point of view of the predominant public interes...

The Innovative Industry strategy of EU reinforces the role of Public Private Partnerships to focus on key technologies and their implementation through federated projects. The European Commission has made large investments into Public Private Partnerships to enable a long-term, strategic approach to innovation, research and development, as well as to reduce uncertainties by allowing for long-term commitments. Taking into account the European experience, the article analyzes the feasibility, possibilities and direc...

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 ...