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The article presents the laboratory settler tank to realization sedimentation process in counter-current or cross-current variant. The concept of a designed settler tank and showed in this article allows to compare them in these systems, define of the influence construction elements and influence of process parameters e.g. for velocity distribution in sedimentation space of settler tank. One of the researched elements which was presented was influence of geometric parameters of perforated tube and baffle on distri...

Influence of different type of mould-release agent on surface properties of coloured concrete is presented in this paper. The quality of exposed concrete areas is directly affected by several factors. In addition to the most important factor, which is the influence of the outdoor environment, has the inconsiderable influence on surface properties of concrete manufacturing technology and the used material. This article is focus on roughness and colour intensity of concrete elements. Concrete samples were created in...

In summer, building interiors are often overheated. It is common situation especially for buildings with structures from lightweight materials (e.g. attic rooms). One of the ways to solve the excess heat removal from the interior during the summer months is integration of some phase change material (PCM) into building structures. PCMs are capable of storage latent heat at normal indoor air temperatures. In this paper, a comparison of thermal stability in two geometrically identical attic rooms is made. The differe...

Suzuki cross-coupling reaction is one of the most widely used and environmentally friendly methods of carbon-carbon bond formation for the synthesis of various chemicals including APIs, crop protection agents, and polymers. In this work, the Suzuki cross-coupling of 4-bromoanisole and phenylboronic acid was carried out as at ambient pressure (nitrogen atmosphere was used) while using EtOH/water mixture as a solvent at mild reaction conditions (60oC, NaOH) and at the absence of phase transfer agents. It was shown t...

The article provides an analysis of influence of the railroad industry on social and economic development of Russia from launching the railway communication to the present day. Rail transport in Russia is an economy branch that guarantees continuous work of all economy sectors. From the very beginning, the railroad projected influence on social and economic development of the country, territory development and planning, and national security. At present, the railroad continues playing a decisive role. Together wit...

Selective non-catalytic reduction of nitrogen (SNCR) oxides is a conventional technology applied extensively to conventional fuel combustion equipment in order to mitigate the emission of such oxides. The results of the process ? NOx concentration in the exhaust gas evacuated and the influence of the SNCR process on the overall combustion process depend on several factors and must be examined in each particular case. The paper presents a comparison between the situation before and after application of the SNCR pro...

In the present study, we estimated the influence of chicken manure derived biochar prepared at 400?C during 2 h being introduced into soil at the dose of 30 t ha-1 on the functional diversity of soil microbes. The experiment was carried out in laboratory conditions in 10L soil containers. To estimate that, substrate utilization ability of the communities were analyzed using Biolog Ecoplates® method. Biochar introduction was analyzed solo as well as with the co-influence of the following factors: granulation, addit...

Recent investigations are focused on the characterization of hydroxyapatite nanoparticles obtained via addition or substitution processes with different cations or molecules. These nanoparticles can be used for developing fertilizers that can be applied in sustainable agriculture. Hydroxyapatite (HA) has multiple uses in agriculture: as a source of phosphorus, to obtain slow-release fertilizers as well as for removing and / or immobilizing heavy metals. Synthesised hydroxyapatite (HAE) gives the advantage of using...

Natural vegetable juices contain the essential vitamins and nutrients for human body. Therefore, they represent a good opportunity for the treatment and prevention of various diseases. With the vitamins, taken through the juice, the human body becomes more resistant to viruses and infections, stressful situations and intense physical stress, the metabolism is being normalized. Fresh vegetables and fruit juices contain organic acids and mineral substances (potassium, calcium, iron, copper, magnesium, phosphorus, ma...

The composting process, together with methane fermentation and agricultural use as a fertilizer, is one of the most popular methods of sewage sludge management. As a result of a properly carried out process, obtained compost has a very high fertilizer value, mainly due to the high nitrogen content and a wide range of macro- and microelements. The purpose of this study was to determine the effect of composted sewage sludge temperature (with the addition of structural material) on CO2 emission and the dynamics of th...

By adding H2 to CH4 the combustion characteristics improve considerably. The flammability characteristics of the CH4 are most well-known, but the CH4 enriched with H2 has a completely different behaviour regarding the flammability and the explosiveness. The understanding of the flammability of such mixture in the air is crucial to allow their safe use in industry. Lower and upper flammability limits are one of the most important parameters at the time of characterizing and handle flammable gases. This study is foc...

In-situ combustion is considered as one of the most effective ways to enhance recovery of heavy crude oils and bitumens. The oxygen from injected air reacts with the heavy components of the crude oil, forming a hot zone in which the cracking and oxidation of the heavy fractions occurs. It is noted that the combustion process essentially depends on the pressure and the nature of the crude oil. The effect of the oxygen content in the gas mixture on the combustion front propagation of heavy crude oils is shown. When ...

In the case of anthropogenic transformation of landscapes, the most sensitive component is the soil, which ensures the stability and biodiversity of the ecosystem. The greater the degree of landscape anthropogenesis, the greater the changes in soil factors: mechanical composition, humus content, physical, biotic and chemical properties. The main negative effect of urbanized and industrial areas is technogenic soil salinization. The presence of salts in the soil has an important effect on the mobility of many subst...

Method of hydraulic fracturing the oil reservoir is one of widely used approaches to increase the efficiency of hydrocarbon raw materials production in petroleum industry. A great deal of theoretical researches aimed at defining the direction of hydraulic fracturing cracks were carried out. But it is lack of information of studies the spatial position and other parameters of hydraulic fracturing cracks in oil reservoirs based on results of field experiments. It is caused by lack of special tools and methods to def...

The research studied the effects of solubility, disperse features (Z-average diameter dav, and charge (?-potential) of the particles of non ferrous-metal slightly soluble compounds of different natures exemplified by hydrates, carbonates, phosphates and sulfides of cuprum(II) and nickel(II) related to efficiency of their extraction from aqueous solutions through electroflotation. The research showed that minimum solubility of the dispersed-phase? particles of cuprum(II) and nickel (II) cannot be used to predict th...

In model laboratory studies of dynamics (3, 30, and 90 days), the effect of veterinary antibiotic tylosin on the biochemical properties of brown forest soil was studied at concentrations of 1, 10, 100, 1000 mg/kg of soil. To study the biochemical properties of the soil, the following indicators were selected: the activity of enzymes of the class of oxidoreductases (catalase, dehydrogenases), hydrolases (invertase, phosphatase), and acidity of the soil (pH). It has been established that contamination of brown fores...

Water deficit is the major environment factor affecting bread wheat (Triticum aestivum L.) grain quality under Mediterranean climate. Many ecological regions in Algeria are suitable for the production of bread wheat, and therefore the technological quality of this wheat should be improved. The determination of the technological quality of bread wheat (Triticum aestivum L.) requires a strong investment of time and money on behalf of the flour industry. For this reason, a field experiment was carried out over a 1-ye...

The research described in the article deals with the management of the water supply and sewerage system operation in the Czech Republic. It also examines the impact on the water price in individual cities. Firstly, the historical development of water management infrastructure was briefly outlined and models of water supply and sewerage systems management in various periods of the development of the Czech Republic were introduced. Individual models of water supply and sewerage system operation were described, namel...

The waters of the thermal spring Sveti Stjepan in Istarske Toplice spa in Croatia has been used for medical purposes since 1817. Given the physicochemical indicators, the water of the Sveti Stjepan spring is classified into a group of highly sulfuric-radioactive-mineralized Na-Ca-Cl hypo to isothermal waters. It should be noted that rich sulfuric content and at the same time radioactive water occur very rarely. The unique mineral composition significantly contributes to the high balneological quality of the spa. T...

In order to analyze the activities in the field of implementation of Arctic scientific projects carried out by the organizations of the Russian Federation, Murmansk Arctic state University has created an information and analytical system (database) for Arctic research and technological works. The work of the system is based on information from official open sources. Only the projects that have a specific reference to the Arctic region in their implementation are including for analysis. The executor of the project ...

Issues of development and implementation of innovative products and technological solutions that ensure the comfort of human presence in the Arctic are one of the priorities of the Strategy of Scientific and Technological Development of the Russian Federation, the Strategy of Spatial Development of the Russian Federation, the Strategy of Development of the Arctic zone of the Russian Federation and National Security for the period up to 2020. This sphere which includes agriculture, marine bioresources and aquacultu...

Companies with financial stability and relatively good market share usually invest in software for supply chain management. IT can be used to transmit real-time market information for real demand on the supply chain. The analysis of the current development of the IT sector and the good practices for SCM software application, determine the need to formulate some novelties regarding information sharing with upstream partners. The aim of this article is to give some methods for information sharing in supply chains wi...

The article presents an information system for monitoring and managing the quality of medical devices (apparatus, equipment, tools) in medical institutions in order to ensure effective and high-quality diagnosis and treatment of patients. To develop the structure of the information system, the stages of the life cycle of medical devices in a medical institution are considered on the example of the Central City Hospital No. 2 named after A.A. Mislavskiy of Yekaterinburg city, Russia. Personal account cards, mainten...

The purpose of this study is to create an information system that allows for predicting the results of football matches primarily focusing on teams in the Russian Premier League (RPL). To predict the results of matches it is possible to use various approaches that take into account a large number of different factors. This work is devoted to the study of patterns of outcomes of matches, depending on the place occupied by a team in the championship. During the season, teams can occupy the predicted and desired plac...

The Ore Mountains in the Czech-German borderland (Central Europe) were depopulated after the 2nd World War. The rapid population decrease affected the industry that used to be in this region for ages and almost all the industry in the Czech side of the Ore Mountains vanished. More than 240 vanished objects (factories, technical objects, manufactures) were identified during background research and the field survey in the area of interest. Based on the history and depopulation of this region, the vanished objects ma...

An important factor in the scientific and educational process in higher education is the local library of the respective educational institution. The local library offers the use of the local library information system and more precisely the Online Public Access Catalog (OPAC) to perform a lot of reference and research activities for the mentioned process. As the name suggests the system usually works online and has a web-based interface that allows working with it remotely over the Internet using a regular web br...

Electrical cables are one of the key components of green building technologies. They are crucial for the operating of many green building technologies (e.g. power transfer from the solar cell to other building electric devices). For fire safety level assessment of electrical cables installed in green buildings are used their fire characteristics. The reaction to fire is the fundamental and most important fire characteristic of electrical cables. Nevertheless, it is used almost exclusively in the prescriptive appro...

The ?20-20-20? program provides a 20% reduction in greenhouse gas emissions (CO2 equivalent) compared to 1990, ie a 20% reduction of the final energy consumption compared to 2005, by increasing of the energy efficiency and increasing the share of renewable sources in the total energy mix to at least 20% until 2020. Starting from this European directive, the authors propose to develop a method of assessing the wear and operating status of hydraulic pumps, rotary hydraulic motors and hydraulic cylinders, without nec...

Norway spruce (Pice abies (L.) Karst.) is a late successional, economically significant tree species. It can regenerate in clearcuts (formed as result of management or natural disturbances) under the cover of young deciduous pioneer tree species. Such areas of unmanaged young deciduous tree stands are rather common in hemiboreal forests due to, mainly, financial reasons. Moreover, due to increasing browsing pressure, also area of very damaged young (primarily, aspen) stands is increasing. Therefore it is important...

The concept of the innovation ecosystem is becoming increasingly popular worldwide. Governments and industrial enterprises are trying to create innovative ecosystems that help to maintain the competitiveness of the enterprise, saving its high position in the regional and national markets. The industry innovation ecosystems require special study, because they are based on a multi-level system linking science, technology and business. Using the integration of the systemic and synergetic approaches, network theory, e...

The rapid change in the technological paradigma of Russian subsoil users is dictated by sharp changes in the energy policy picture of the world; the increase of Russia's geopolitical loneliness; the introduction of sectoral sanctions; the violation of the mechanism of international transfer of advanced technologies; the unpredictability of the global hydrocarbon market. The negative impact of global trends is complemented by unresolved internal problems of oil and gas companies in the regions of their presence. Th...

The article examines the Russian chemical industry in respect of the problems and prospects for the implementation of the state strategic objectives in the field of innovative development. The external and internal conditions for the scientific and technological development of the Russian chemical industry are identified. The main promising areas for the transformation of the Russian chemical industry aimed at boosting the country?s competitiveness are determined. Considered the terms and conditions for the develo...

The aim of this investigation was to design and determinate the mechanical properties of innovative, externally invisable joints that can be assembled without the use of tools. The purpose of the paper is to determine the strength, stiffness and modulus of the elasticity of T-type mortise, loose tenon +/ glass fibre reinforced plastic clamping furniture and framing joints under tension, bending and share loads LVS EN 310:2001 [1]and Eurocode 5 [2] for wooden indoor and outdoor structural connections. Thesamples ar...

In the article, we present innovative technologies for geo-ecological support while artificial coastal territories development, taking as an example the Lakhta-Center on the northern coast of the Neva Bay (St. Petersburg area). The geo-ecological stability of underwater and coastal landscapes of the coastal zone of the Neva Bay is analyzed with using side scan sonar. The environmental sensitivity of coastal ecosystems is estimated. The received data can be used on practice for the planning the construction work an...

Currently, to replenish mineral resources of Kazakhstan, the discovery of mineral deposits in areas covered by Cenozoic deposits is important. They are located quite deep. The forecast of such minerals requires the creation of a reliable scientific base and the use of innovative cosmogeological research methods. The geotectonic structure and geodynamics of the Paleozoic and Proterozoic basement of the territory of Kazakhstan is now successfully explained from the position of the conventional plume tectonics. In ac...

This study deals with the synthesis and characterization of functional membranes, suitable for the removal of heavy metal ions from synthetic wastewater, using various copolymers together with low amount of biosorbent. The membranes were obtained at room temperature by phase inversion. The kind of biosorbents were investigated, the 1st one based on nutrients and the 2nd one based on bioactive substances. The obtained functional membranes were characterized by different techniques: Fourier Transform Infrared (FTIR)...

The objectives of the study were to develop approaches to evaluate the effectiveness of the institutional matrix of regional innovation systems from the point of view of the formation of ?key? institutions for sustainable development, identification of the structural components of the ?green? innovation system, their resources and functions. The methodological basis of the study was an interdisciplinary approach, including a comparative analysis of foreign and domestic scientific discourse on ?green? innovation, a...

The article presents a generalized vision features limitations in the use and development priorities of economic activities within the coastal zone. The progress of administrative and territorial structure reforming, the united local communities forming on the example of seaside regions of Kherson region were analyzed. It was also revealed that decentralization processes in coastal regions are slowed down. The factors influencing the implementation of the territorial system reform and possibilities of integrated c...

The article argues in favor of an integrated indicator of quality of services of higher education institutions. This indicator is calculated relying on the balanced scorecard methodological tools modified to be suited to higher education. The integrated indicator which has been developed incorporates interrelated sets of criteria used to ensure the quality of higher education services such as academic performance and research activity among students, the way in which the quality of educational services is assessed...

In August 2018 an expedition was organized to Lake Sevan (Armenia), where seismoacoustic studies and the selection of short cores of bottom sediments for laboratory investigations were carried out. Five seismoacoustic sections revealed a bedding pattern of bottom sediments. The thickness of sediments reaches ~ 14 m. Laboratory studies included: radiocarbon dating, measuring magnetic susceptibility, measuring coercive parameters, obtaining thermomagnetic diagrams, determining the elemental composition of sediments,...

Borehole instability issues account for approximately 18% of the non-productive time during drilling. The data needed for the planning of optimized wellbore trajectories and mud weight windows can come from multiple sources, notably Logging-While-Drilling (LWD) and wireline measurements. In particular, in-situ tectonic stresses can be inferred from the identification and characterization of breakouts (some of the most common processes that infringe upon the stability of boreholes). Two techniques can help to disti...

To obtain a chromite concentrate with an acceptable silica content, it is very promising to apply the method of hydrochemical enrichment, which will make it possible to develop waste-free technology for leaching chromite ores and reduce the silica content in chromite concentrates. Before hydrochemical processing, it is advisable to apply the technology of gravity concentration. Modern gravity enrichment technologies make it possible to efficiently produce chromium concentrates from large and medium fractions of ch...

All used oil products are currently transported through pipelines. Pipeline breakthroughs cause great economic and environmental damage. Up to 60% of all damage is due to corrosion, the main causes of which are ground moisture and transported substances. Under their influence, the structure of the metal changes, as a result of which the crystal lattice is destroyed and the metal "vanishes" from the surface of the pipe. The main method to prevent corrosion is passive protection - creating an insulating coating betw...

In the paperwork is described a system for testing of pressurized type of protection for enclosures. In the first part of the paper was presented the explosion risk and pressurization of enclosures as type of protection. Also, in this part were underlined some requirements and advantages for this type of protection. In the second part was proposed and presented the theoretical model for measuring the protective gas concentration and also was mentioned the influence of air moisture. Consequently, were presented the...

The sustainable agriculture requires a series of complex, individual but interrelated and dependent on each other processes that need to be efficiently organized in stages to ensure good overall results. Therefore, the success of a given product is based on a triangle formed by the farmer, the technology and the concept of services and counseling. Services and counseling are based on collected data. Data generated from modern agricultural activities is extracted with the usage of various sensors embedded in agricu...

The article deals with the modeling of the structure that combines virtualization technologies and an e-learning system. It also describes the logical structure of the system under study, static and dynamic models. The most popular learning management systems have a modern website interface of the e-learning course, many necessary features for providing remote e-learning for different categories of users. However, these systems do not involve the use of a virtual application software environment or shell required ...

The work exposes the design and experimental testing results of a low-cost INS/GPS navigator with a data fusion algorithm based on an adaptive neuro fuzzy inference system (ANFIS). In the paper, the structural design of the MEMS-INS/GPS integrated system mechanism and the training procedure of the fuzzy inference system are firstly exposed. Further, the evaluation with experimental data of the integrated navigator based ANFIS algorithm is presented. The integrated navigator proposed scheme works in two different p...

The paper presents the results of studies of the coal microstructure. The presence of cleavage and the normal or strike nature of the stress state of the coal seam leads to the e longitudinal fracturing (along the borehole) orthogonally to the coal bedding. With the reverse nature of the stress state, the orientation of the fracture depends on the direction of drilling the well. In this case, the crack can be formed both along and orthogonally to the bedding. The results were used to analyze the effect of hydrauli...

At present, the problem of unceasing growth of electricity consumption against the background of limited natural resources is extremely acute. The task of waste disposal is also highly relevant. One approach to solving these issues may be the use of microorganisms-electrogenes in biofuel cells (BFC). Microorganisms are able to dispose of wastewater with simultaneous release of electricity in BFC. However, despite all its advantages, today BFC is overwhelmingly inferior to traditional methods of producing electrici...

The paper aims to highlight the economic efficiency of the intensive farming system for winter wheat and corn for the period 2014-2018 under the influence of different bio-pedo-climatic conditions. In order to practice a modern, intensive, high-precision and efficient agriculture, advanced technology is needed to make profit. Modern agriculture, and especially intensive agriculture, puts a price on the quality and quantity of the crops. At the same time, within this intensive farming system, the calculation of eco...