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As it is well known, casting is a semi-fabrication process with a wide spread in many industrial sectors, especially in the automotive industry. In some cases, castings either have to be rehabilitated before obtaining the finished part, or in some cases some finite parts that are more stressed, after a certain number of hours of operation in a subassembly, will present an advanced wear condition, which will make the further operation of the respectively assembly impossible, this requiring the reconditioning again....

Medvezhye gas field is the oldest known one in Western Siberia and unique because of its values. At the present time most of Cenomanian deposits are exhausted. Senonian sediments, which are such nontraditional reservoirs as clayey opokas, opoka-like clays and opokas, are considered as a source of resource potential compensation. Objects of the study are 34 core samples taken from two drill holes and belonging to the lower part of Berezovskaya suite. Geochemical and mineralogical features of the rocks were studied ...

The article deals with a number of fundamental questions concerning the study of the disproportions in the development of territorial communities on the basis of geoinformation analysis of the qualitative situation of population?s life activity. Population?s quality of life is the most important factor in the implementation of the balanced development policy, as it reflects not only the social and economic well-being of the population, but it also serves as a tool for monitoring of the state of population?s life a...

Thermal imaging is contemporary remote sensing measurement technique, which provides an image of the temperature distribution in the measured object. The method is widely used, due to its mobility as well as the non-destructive character of the measurement. Infrared thermography is especially relevant in the inspection of insulation, what is more, it is a suitable device for detecting thermal bridges and structural changes, which can impact building energy performance. In the paper, authors brought up the issue an...

Annually natural resources are disappearing more and more, particularly it concerned forest resources. Furniture, houses, carpentry and etc. are made from wood. Scientists gradually try to find options for replacing forest resources, produce products from other materials, but forest areas are declining. every year. For conservation and rational forest usage, it is necessary to change needs for certain assortments and harvesting of natural wood in the future, and it will be achieved by forest consumption optimizati...

In the production of metallurgical products, large amounts of waste are generated, which occupy significant areas and pollute the air, water and soil with toxic compounds. However, such wastes contain many valuable elements that can improve the operational properties of construction products, including lightweight cellular concrete, which will solve several problems at once: to free land, to improve the ecological situation in the area, to improve the quality of construction industry products. It is offered to use...

Autoimmune diseases affect approximately 5% of the population worldwide. Generally, these disorders induce high degree of morbidity and disability and therefore, they have a significant social and economic impact. The precise diagnosis of specific autoimmune response is necessary for adequate treatment of the patient. Accordingly, the diagnostic assays for autoimmune diseases are continuously developing and improving. Biofunctionalized nanoparticles represent a promising novel approach in this field. Our group has...

Coastal areas around the world are constantly subjected to pressure on human activities. The environment suffers transformations from the anthropogenic activities, transformations that most often have the effect the degradation of the environmental factors. Coastal areas are often described as areas of potential conflict between the stakeholders and mechanisms such as integrated the coastal zone management or, more specifically, marine spatial planning are designed to achieve the sustainable management in this are...

It is necessary to determine the amount of starch in order to find effective methods of controlling it in technological flows of paper mills. Enzymatic methods for starch determination based on the selective action of amylolytic enzymes on starch are promising. Water-soluble low molecular weight dextrins are formed when starch is treated with alpha-amylase. Dextrins are then hydrolyzed by glucoamylase to glucose, which is determined by various methods. Material pre-treatment is necessary to increase starch availab...

Municipal waste sludge belongs to a specific type of wastes formed in a process of mechanical, biological and chemical treatment of wastes. The sewage sludge, due to its variable content, constitutes a big problem with respect to optimum and safe sludge management. There is no single correct way to treat sewerage sludge. One needs to remember that the selection of the management method of the formed sludge is individual and depends to a large extends on the size of particular waste treatment plant. A subject of te...

The article presents research results carried out by the authors in the field of ensuring the energy security of Poland based on a hard coal. The article contains a brief description of the energy market in Poland, the forecast of the electricity production volume up to 2020 (ARIMA model (0,2,1)), as well as the possibilities of using Clean Coal Technologies (CCT). The necessity to undertake activities related to the development and implementation of the CCT is dictated mainly by the growing level of greenhouse-ga...

The paper is focused on literature review from the scientific works in area of utilization of biomass in agglomeration process. Actual environmental potential of biomass, as well as its availability, emphasizes the importance of this topic. The composition and properties of biomass differs from the fossil fuels. It is important to view on utilization of biomass in agglomeration process in wired then ecological context. Technological and economical parameters are also important for its utilization. The type pf the ...

The base of the Northern Bohemian region is made up of the kratogen (old block) of the ?Bohemian Massif? that belongs to the so-called Hercynian (Variscan) province. Its development was tectonically terminated by hercynian orogenesis, which means by orogeny in the Palaeozoic Era (Carbon). Such regions are not very promising for the occurrence of geothermal energy, unlike geologically younger areas. But the heat flow is significant in some parts and consequently the area is called the ?Czech geothermal heat flow an...

Environmental Citizenship is a key factor in EU's growth strategy (Europe 2020) and its vision for Sustainable Development and Green and Circular economy. Significant behavior change amongst both individuals and organizations is required in order to meet Europe?s sustainability objectives and climate change targets. At a general level, policies aimed at changing behavior have tended to rely on two aspects: the introduction of fiscal measures and statutory legislation or market-based measures. Unfortunately, relati...

Austenitic stainless steel biomedical grade type 316L, is the most used metallic biomaterials for biomedical applications due to their excellent corrosion resistance, good biocompatibility, low price, availability, easy processing and high strength. Due to these favorable combination of mechanical properties, satisfactory biocompatibility and relatively low cost, in comparison with other metallic biomaterials, 316L stainless steel has been successfully applied in medicine. In dentistry it is used in a variety of a...

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...

Natural gas and oil have been unquestionably the most important energy resources in the world for years. Unfortunately, the occurrence of oil-based regions does not coincide with the main areas of oil and gas consumption. Therefore, it is necessary to transport hydrocarbons over very long distances. Sometimes thousands of kilometers. Laying pipelines is an extremely costly and logistically difficult engineering project. The basic methods of building gas pipelines include laying them in an open excavation. Sometime...

Electromagnetic (EM) induction technique is one of the most important geophysical techniques in understanding the subsurface structure. The theory of magnetotelluric (MT) method, the main branch of the EM technique, was introduced during 50?s by Tickonov and Cagniard with the natural variation of electromagnetic fields, as its source. We will present the results of a study focused on the processing and modeling of magnetotelluric (MT) data in watered area located in the Moscow Region (Geophysical observatory "Mikh...

The task of the work is to improve the quality of digital image processing in vision systems by developing new features based on the use of fractal theory in conjunction with fuzzy logic and the theory of fuzzy sets. At present, the systems of technical vision are actively used in many fields of science and technology. The most important part of any such system is the software, whose task is to process the information received. However, the overwhelming majority of digital image processing algorithms are based on ...

In order to ensure energy security, at national level, coal constitutes an important source, though its share in the energy mix is reduced in the past few years in favor of clean technologies and on the background of the fall in the energy consumption. Where can be located in the project of energy security, the production of coal, exploited in the mining units in the Jiu Valley and valorized at the two power plants, Mintia and Paroseni-components of the Hunedoara Energy Complex, amid the request for intervention f...

The issue concerning reasoning and evaluating the optimal bottom-hole pressures is considered to be one of the challenges in mature oilfield development. Bottom hole pressure optimization is a relevant and researchable problem, and it requires a nuanced approach to a solution development. Operators look to reduce operating costs in mature fields that are approaching cessation of production. The issue of production below the bubble point is therefore becoming more important. The paper investigates how an oil produc...

The possibilities to develop health resorts and balneological or spa and thalassotherapy centres in the Baltic Sea region countries have not yet been fully analysed. The water resources in Latvia have been used historically and still in nowadays could be used for different types of treatments more effective. The core questions for a medical tourism development are products, demand and service quality. It is marked in the Baltic Sea country (Lithuania, Latvia, Estonia) development strategy that environmental manage...

Environmentally oriented production is one of the major concerns of companies in the global competition. Clean technologies, green procurement and suppliers and distributors' chains of healthy products are processes and activities that are a consequence of the adoption of Corporate Social Responsibility (CSR) strategies, which are geared towards sustainable development. This article analyzes the link between the environmentally oriented production regarding responsibility practices in bakery companies and its effe...

One of the main conditions for developing qualitative forecasts of energy consumption, as well as identifying the potential for energy conservation, is data on the energy intensity of production in industries. A regional analysis of energy consumption in the economy will help develop a comprehensive, long-term regional energy efficiency program balanced in terms of resources and costs. For Russia, this task is particularly relevant for two reasons. The first is due to the fact that the length of the territory of R...

The article discusses the need to create a unified engineering geology information data-base. Taking into consideration the fact that the stored information is found in a scat-tered way (paper, electronic, separate reports), its wider application is complicated. The given paper deals with the basic principles of creating a common database of engineer-ing geology, as well as making reporting forms to facilitate the work of the geological engineer and to satisfy the need in geological information by various departme...

The precipitation survey by modern techniques helps calculate the amount of rainfall in the catchment and save it in a digital format. This paper proposes the development of a GIS methodology for determining the input data or parameters needed for modelling the rain-drainage process in order to anticipate the amount of available leakage water and the integration of slopes leakage to estimate the magnitude of rapid floods that may occur. The data obtained from the rain-gauge stations in the Uz catchment are used in...

Natural sand resources in Vietnam have been nearly exhausted and its price has been increasingly escalating. According to estimation, by 2020 Vietnam will not be able to provide enough sand for construction industry. Alternative materials for natural sand are now encouraged by the authorities. Therefore, this article focuses on researching the possibility of using GBFS as an alternative for natural sand in aggregate for concrete. Based on the previous studies and suggestions given by domestic and international res...

Sustainable development of the capital city of Republic Kazakhstan of Astana is an main task, which provides the high quality of the urban and environment development. Astana city is an new capital, a large urban center of the country with the regional and global markets, the large business transit hubs and key transport corridors of the Central Asia. The population of the Astana city from 1999 to 2016 increased from 326.9 thsd. to 972.7 thsd. people. In 2016 the labor resources of city was 50.2%, indicators of po...

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...

Zinc oxide nanoparticles (ZnO) are a promising material for a variety of applications due to their unique characteristics and properties, including optical, chemical, semiconductor and piezoelectric. A lot of scientific papers are devoted to the antibacterial action of ZnO nanoparticles. As the main mechanism responsible for the antimicrobial action of ZnO in modern studies, photocatalytic generation of hydrogen peroxide H2O2 is indicated. In addition, in a number of studies it was found that the slowing of bacter...

Underground hard coal exploitation is accompanied by a series of natural hazards. Their number and intensity increase along with the growing depth of exploitation. Amongst the most dangerous hazards in the mining industry, one can distinguish the following: methane hazards, seismic hazards (including the rock-burst hazard) and coal dust explosion hazards. They are a common issue in Polish coal mines, thereby making it necessary for coal mines to identify the level of these hazards. It can also be assumed that ther...

Demand of dairy products, especially yogurts, increases year to year in Kazakhstan; it has a significant contribution to the market, developing the range of yogurts. Due to its wide consumption and acceptance, science interests on the analysis of dairy products. However not all method are able to analyze the composition of yogurts, due to the complex compound and peculiar structure. For this purpose solid-phase micro extraction (SPME) technique was developed and coupled to subsequent gas chromatography?mass spectr...

Cultivation of maize for silage production presents significant source of biomass for feed and energy. Unfortunately, convectional ways of maize cultivation bring a range of negative phenomena, such as soil erosion, decrease in soil fertility, etc. The present work deals with the possibility of maize cultivation in intercropping system together with legumes to prove its effect on soil properties (Cmic, Ctot and Ntot content in soil, dehydrogenase activity of soil microorganisms ? DHA). Three experimental variants ...

The article proposes an air quality monitoring system in subway stations (possibly in trains) considering that air intake is made in many stations at ground level where the level of noxes (PM, CO2) is high. The proposed system uses sensors for air quality, presence of toxic gases, smoke and fire protection, monitors air quality and permanently provides this information to travelers either by accessing a site and / or locally via a graphical interface. Environmental monitoring information systems are systems of sur...

This paper presents the research undertaken in order to establish a processing technology for the Budureasa dolomitic limestone. For this, a series of physico-chemical and mineralogical analyzes were performed, but also unitary processing operations such as grinding, calcination, gravitational concentration and flotation, and solubilization with carbon dioxide in an aqueous medium to obtain a MgO ? rich concentrate, usable in various fields of activity, under economic efficiency conditions. Mineralogical, chemical...

Sources that contain data about tourism in Bulgaria are both structured and unstructured. Information from these xls and pdf files is organised in a created relational database. The database stores time series on tourism flow (trips of Bulgarian residents abroad and foreign tourists to Bulgaria), expenditure of outbound tourists, revenues from international tourism and employment in tourism. This article studies time series on trips of Bulgarian residents abroad (outbound tourists) by country of destination and by...

It is well-known that earthquakes do not consider boundaries and Bulgaria is also subjected to seismic impacts from earthquake sources located in the neighbouring countries, i.e. outside its territory. Without doubt the actual impact from these sources on our built environment is to be taken into account by our engineers and planners. This could be done properly if only based on instrumental records of real events and after assessment of their characteristics. The effect of Vrancea quakes on our territory is rathe...

Recent research has demonstrated that landscape fragmentation causes biodiversity loss. Our main objective was to evaluate the landscape fragmentation by analyzing land use and land cover (LULC) change in the Subcarpathian area, during the post-communist period. We used the spatial data from the EEA CORINE Land cover database (CLC 1990 and CLC 2012) to calculate six landscape metrics in the Patch Analyst 4 (Grid) software, in order to express the modifications in size, composition, spatial distribution of patches ...

The effectiveness of the higher educational institutions work is currently being given greater priority. Every year, the Ministry of Education and Science of the Russian Federation carries out an appropriate monitoring upon seven indications, along with an internal evaluation of the universities work on an expanded list of indicators for the purpose of ranking the universities and their managers. In order to improve the effectiveness of educational activity of higher educational institutions, the possibility of cr...

The article discusses the importance of verbal communication monitoring in the process of foreign language learning and teaching. The aim of this study is to propose a theoretical justification and experimental verification of the effectiveness of the monitoring algorithm of students? verbal communication in the foreign language classroom. The research focuses on the following tasks: to develop and experimentally validate effective components of the monitoring algorithm of verbal communication of students and to i...

Sustainable and ecofriendly engineering requires the use of high amounts of recycled materials. Extensive amounts of building materials required for construction of roads facilitates the use of recycled old surfaces from the ecological and economical point of view. Reconstruction and development of new roads requires acquisition and processing of different materials such as: soils, aggregates acquired from unbound layers, concrete and asphalt surfaces, and particularly hazardous surfaces with tar bonding agent. Af...

In the area of the Erzgebirge Foothills (Krusne hory), research of flooded mine pits in terms of water regime and quality as well as their management and subsequent use has attracted great attention in recent years. Smaller water reservoirs (ponds, wetlands, dips, sinks) have not been systematically monitored, despite of their importance in this type of landscape which has been affected by mining. The Modlany reservoir was monitored in 2013?2017. This small water body shows symptoms of an extremely eutrophicated s...

Two national agencies are operating in Turkey providing routine analysis of earthquakes of Turkey and surroundings, Bo?azi?i University - Kandilli Observatory and Earthquake Research Institution (BOUN?KOERI) and Disaster and Emergency Management Authority, Earthquake Department (AFAD?DDA). In the present work, we check the consistency of the focal parameters provided by these centers for a large number of recently occurred earthquakes. To perform this test, we used the solutions provided by International Seismolog...

Campsis radicans is part of the Bignoniaceae family and has the appearance of a deciduous vine almost always green. It can reach up to 12 m in length, its leaves are a shiny, dark green and its flowers display a yellow ? orange colour, sometimes tending towards red, with a tubular form, 8 cm long and approximately 4 cm wide. During the experiment, we monitored the influence of cutting length on the cutting rooting rate, the main purpose being the analysis of the influence of the three experimental factors (sublaye...

A comparative study of the influence of the multiyear application of the No-Till technology on enzymatic activity of different chernozems of two districts in the Rostov region was carried out. These soils are widespread in the vast territories of southern Russia and are the most productive arable soils. As a result, in different climatic conditions and on different subtypes of chernozems it has been established that long-term application of No-Till of direct sowing with the accumulation of plant residues on the so...

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...

Submitted paper summarizes the existing knowledge and experience of the survey works and groundwater monitoring in the Slatinice waste dump. In the area of interest there are several hydrogeological collectors with different hydraulic parameters. Especially there are collectors of quaternary sediments, burned clays, weathered volcanic rocks and saturated contact layer between the dump and its subsoil. From the year 2013 an intensive hydrogeological survey is being carried out in the Slatinice waste dump and its su...

The main problems faced by any city at present are: reduction of natural resources, environmental degradation, increased carbon dioxide, demographic and social changes associated with the urbanization and population growth phenomenon as well as increased frequency and size of floods urban.Stormwater collection is a strategy for adapting to climate change. This strategy has been applied by many civilizations in the history of mankind, pluvial water collection systems have met, for the first time, in areas with long...

The importance of mineralogical research in microscale increases with the need of advanced characterization and detailed quantitative analysis of ores and upgrading products. Automated mineralogy technique connected with advanced scanning electron microscopy like QEMSCAN® or MLA give a possibility to obtain comprehensive information about mineral and elemental composition, particle size distribution, liberation and associations between grains and other quantitative and qualitative data for raw materials and produc...

Due to increased precision in positioning and depth determination, recent seismicity data (January 2014 - January 2018) from ROMPLUS Earthquake Catalogue of Romania[1] have been used to illustrate active faults at crustal and lithospheric depths in Vrancea, a seismogenic sector located in the East Carpathians Bend Zone (Romania). Multiple N-S, W-E, NW-SE trending seismicity sections across the Vrancea area have been built and analyzed, as well as seismicity maps at various depths, or for depth intervals. The seism...