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The article presents the results of the studies (in 2018 and 2019) of the level of accumulation of polychlorinated biphenyls (PCBs) ? the most toxic compounds from the number of persistent organic pollutants (POPs) in the snow cover (SC) of the territory of Almaty agglomeration, area of about 940 thousand hectares. The contamination of PCB SC has been established, especially in urban areas and adjacent to large industrial hubs. In snow samples up to 29 individual PCB congeners are identified, which is an indicator...

Aragonite and calcite were identified among the daughter phases within secondary melt inclusions in rock-forming olivines and among interstitial minerals in sheared garnet peridotite xenoliths from kimberlites of the Udachnaya diamond deposit (Siberian Craton, Russia). This type of the xenoliths are the deepest mantle rocks sampled by kimberlite magma from 180?230 km depth. According to experimental data, aragonite is a high-pressure polymorph of CaCO3, which is stable at upper mantle pressures and temperatures. T...

The Upper Devonian shales are predominantly carbonate, carbonate-siliceous thin-layer rocks with a high content of organic matter. Considered formation is widespread within the Volga-Ural and Timan-Pechora basins in the European part of Russia. Various estimations show that the hydrocarbon resources of the Upper Devonian shales range between hundreds of millions to billions of tons of oil. However, recovery of such hydrocarbons is significantly constrained due to the high heterogeneity and complex structure of roc...

Nowadays a major issue in managing the industrialized/logistic zones is represented by the environment protection. Circular economy or industrial ecology can be a sustainable model. The challenge for the economic actors of the Danube is the promotion of an Eco-friendly mode of transportation. The port administration and port operators should find solutions to implement an industrial ecology regime. Adapting an Eco-innovative solution should contribute on the number of the additional partners and clients. This cont...

Nowadays institutions of higher education are actively working at providing methods of bringing to life federal educational standards of higher professional education. In competency-oriented major educational programs in the fields of education a special attention is paid to organizing independent activities that will enable students to achieve experience of independent responsible work, develop their epistemological, axiological and creative potential. Training qualified specialists, ready for constant profession...

The Alternative tourism works in conditions of complex, dynaamic and difficult foreseeable environment. This necessitates analysis of the Supply Chain System (SCS) parameters and research on possibilities for modelling in optimal range. To achieve the aims and objectives of Tourism SCS is particularly important Distribution Network Structure (DNS). Alternative tourism characteristics and complex nature of Green Lodges and Guesthouses require integrative approach for analysis of the SCS. This scientific research pr...

Due to their properties and low production costs, plastics have replaced a number of construction materials and are being used more and more. To maximize the potential of plastics at the final stage of their life, you need to choose the right way to manage the resulting waste. In accordance with Circular Economy, the first form of using this waste should be material recycling, energy recovery may be an alternative to this method of management. It is unacceptable that in the era of today's technology this type of w...

In the development of a sustainable society and an active approach to environmental protection, it is essential to focus on building energy efficiency and its increasing. Within the member states of the European Union, the process of increasing the energy performance of buildings is ensured by increasing the requirements for new buildings through legal and technical standards. This process is supported financially by various EU funding programs. One of the useful helpers in spreading awareness of the energy perfor...

In construction are still mostly used materials with a negative impact to environment. Extraction of stocks natural resources is limited and the energy intensity of their processing is very high. Composites based on alkaline activation could be a partial alternative of these materials. These composites, based on alkali-activation of secondary products of metallurgical and energy industry achieve higher strengths then currently used binders and are also characterized by higher resistance. The paper deals with the p...

The added value generated by the fisheries sector in 2017 was only 0.15% of the total value added in Latvia, in the meantime its significance in external trade was higher, as the sector accounted for 1.8% of the total value of export production (EUR 206 million). The export capacity of the fishing sub-sector is mostly determined by the development of the fish processing sub-sector. Canned fish form 35% of the Latvian exports but this product group faces challenges of product and market reorientation due to decreas...

The Middle Povazie region belongs to 10 regions of the Slovakia with the most disturbed environment. Important industrial enterprises such as rubber plant, cement company and glassworks are the determining sources of the environment contamination in this region. The aim of this study was to assess the degree of potential Cd, Pb, Ni, Zn, Cu, Cr and Co contamination of agricultural land in three localities near to emission sources. The samples of soil were collected from two dephts: 0 ? 0.10 m (A horizon) and 0.20 ?...

The contribution focused on the investigation of the potential in making use of the mining assets that in the past have been employed in extraction and processing mineral wealth of the Spis region. One of the possibilities is in employing them as part of mining tourism, a less traditional form of experience-based tourism. The region abounds in a great number of unique old-time mining works offering a high potential for preserving objects of underground mining, establishing open-air museums, educational paths as pa...

A total of 13.2 million tons of poultry meat were produced in 2017 in the European Union, with Poland?s contribution to that production being the greatest (17.7%). The amount of poultry manure generated in Poland is estimated to be on a level of 3.2 to 3.5 million tons per year. Such a significant mass of waste constitutes a problem for the environment. Due to its properties and the scale of the problem, the management of poultry manure still constitutes a major challenge as well as a field for research. Poultry m...

In the last decades the energy consumption of data centers has increased exponentially. The high energy consumption is due to power consumption of the IT resources, to the cooling system and to the inefficient usage of the resources. From the total power consumption in a data center one half is consumed by active servers and another half is consumed by the cooling system, network of the data center etc. There are several techniques for increasing the efficient usage of the resources in a data center. One of these ...

The construction of high-pressure gas pipelines is an extremely expensive and logistically difficult engineering project. The basic methods of building gas pipelines include laying them in an open excavation. However, this technology is very harmful to the natural environment and sometimes even impossible to apply. In such cases, the latest technological solutions should be used, i.e. trenchless technologies such as Horizontal Directional Drilling (HDD). The paper presents a method of evaluating the efficiency and...

The paper considers the problem of velocity model reconstruction of an elastic medium in the problem of monitoring the zones of underground nuclear explosions. The inverse problem can be solved with help of finding solutions for a set of forward geophysical problems. Main problem is to find the location coordinates and treat to find the characteristic size and shape of cavernous object in entire isotropic elastic media. To realize it the problem statement and the description of basic methods to perform full seismi...

Practice-oriented learning is the process of students mastering an educational program in order to develop their practical skills through the implementation of real practical tasks. The basis of practice-oriented learning is the optimal combination of education with applied training. The introduction of a practical-oriented approach to the educational process is determined by the need to search for adequate educational technologies - a set of tools and methods for teaching students to successfully implement the ef...

A long-term prediction of coastal profile evolution is done basing on several years' measurements. The adopted diffusion model is first calibrated against real data obtained from over more than 20 years measurements, and then extrapolated. A realistic prediction is then made by solving numerically a diffusion equation with coefficients obtained by the extrapolated values. In previous studies, taking into account the time dependence of the coefficients, we were able to reduce to 10 years the number of time measurem...

More than 50% of the world?s populations live in urban areas, and they emit almost 80% of global carbon dioxide. They are also responsible for 75% of energy consumption in the world. That increases pressure on food, water, and especially energy. These facts imply that there is an urgent need to provide low carbon dioxide level in cities with efficient and renewable energy to foster the growth of the green economy. Therefore, attention should be paid to renewable energy sources such as the Sun and be aware of the p...

The paper covers the development, research and numerical implementation the complex of interrelated mathematical models of hydrophysics and biological kinetics on a supercomputer for predictive modeling of pollution spreading processes in boundary atmosphere and water layers at increasing the anthropogenic influence, climatic and industrial challenges, and occurrence of eliminating contingencies of technogenic or natural characters. Discrete analogues of developed model problems of water ecology, included in the d...

The preliminary analysis of network accuracy is the basis for assessing the correctness of network design. The next step should be to modify the structure of the network or adjust the a priori presupposed measurement accuracy. Such an analysis facilitates determining the target network accuracy model for results of adjustment of the observational set. A control network established to determine the displacement of civil engineering objects should be structurally sufficiently accurate, reliable, and flexible. These ...

The purpose of this research is to analyze the data recorded on instrumented structures in Bucharest and adjacent free-field seismic stations during the last moderate earthquake that occurred on 28th of October 2018 in the Vrancea seismic zone. The earthquake had a 5.5 moment-magnitude, a depth of 147.8 km, and it was felt on a large area of Romania, generating very little damage in Bucharest. In the last five years, the National Institute for Earth Physics has deployed permanent instrumentation (accelerometers) a...

Low velocity compressional wave (P-wave), Vp values, have been observed from the lunar geophysical measurements made during the Apollo 14, 16 and 17 missions. These low velocities are attributed to lack of water, low soil compaction as well as the non-consolidated nature of the regolith. The microgravity lunar regolith simulant velocity experiment (?-SVeLSE) aims to determine if there is any dependence of gravitational force on the seismic longitudinal velocity measurements and thus correlate with data previously ...

Three cross-border levelling lines between state levelling networks of Republic of Bulgaria and Republic of North Macedonia are made. The purpose of the realization of these lines is connecting of the state levelling network of Republic of North Macedonia in European Vertical Reference System. That could be made directly through the Bulgarian state levelling network ? part of UELN95/98 from 2003. Precise levelling measurements are initialized from the state geodetic agencies - Agency for Real Estate Cadastre of th...

The preliminary palynological results of analysis a 524 cm long continuous sediments core from the Lake Big Miassovo (South Urals, Russia) are presented. The core was collected in July 2018 from central part of the lake from a depth of 24 m. Palynological stratigraphy has been divided into four pollen zones on the basis on changing pollen abundances and taxa composition. The predominance of Betula pendula, Pinus sylvestris and Artemisia pollen in sediments has been established. The prevalence of desert plants (Art...

Snow cover is an important climatic factor and its changes have a strong influence on water resources and water balance in Bulgaria, as well as on the development of agriculture, tourism, transport and others. The main objective of this study is to analyze the long-term time series of snow cover depth and snow or mixed precipitation types, as well as to summarize the results for each administrative district in Bulgaria. Data from 246 weather stations of the meteorological network of the National Institute of Meteo...

Investigations on coke-bed relations with acidic manganese ores have been reported number of times. The correlation between the mineralogy, property, reactivity of the ore and the products during the production of high carbon ferromanganese have been reported. A theoretical study has proven that the energy consumption of different basic South African manganese ores were very dependent on the chemical composition of the feed. This has a direct impact on the phases that form in the prereduction, reduction and conseq...

Previously we have developed the PLGA nanoparticles loaded with doxorubicin (PLGA-DOX NP) that demonstrated a high anti-tumor effect against the rat glioblastoma in the preclinical studies and is now being evaluated in the clinical phase II study. This formulation was obtained by a generally accepted homogenization ? solvent evaporation technique followed by freeze-drying. The purpose of the present study was to explore the feasibility to simplify the process of the nanoparticle preparation by replacing a freeze d...

The production of red-clay hollow bricks belongs to the sources of industrial waste which gained on importance during the last decades. Although the amount of scrap is similar to the traditional red-clay bricks, the total waste generation is higher. As the current technologies of hollow brick production do not make it possible to provide sufficiently smooth and even surfaces, the brick blocks have to be ground after leaving the production line. This grinding generates a significant amount of waste powder containin...

The article highlights the main problems of the mineral and raw resources replenishment in Russia, and gives recommendations on how to stimulate it. In recent years, in the general structure of reserves for the majority of minerals, the share of proven and prepared for mining reserves has significantly increased, while the share of estimated reserves and estimated resources has decreased. The work used analytical, abstract-logical and comparative methods of research. The key idea is that the development and purpos...

The purpose of the paper has been presenting the evolution of concentrations for four main air pollutants in Craiova, so as to show the situation of air quality in this major city in Southern Romania, also finding the best statistical model to fit the recorded data for particulate matter with diameter of less than 10 microns transported by the wind within the urban area. In order to accomplish this purpose, experimental data have been gathered during the entire year 2018 in the above-mentioned town, by two air qua...

most digestible form of it (puree), the potato was one of the first vegetable foods to be given to children after weaning and to convalescents who resumed their normal diet. Potato is part of the group of tubers vegetables, having as an edible organ the tubercles, which are thickened underground parts that accumulate reserve nutrients, especially starch. Potato?s food value is higher than that of other root vegetable, due to starch, vitamins, sugars and minerals salts. Taking into account the way of use, there are...

Occurrence of flash floods (floods from intensive short-term rainfall) increased in last few years because of weather changes, mostly on the small catchments. Affected small catchments are characteristic with lack of information about hydrologic data, mostly no gauging and precipitation station are established there (it is impossible to warn inhabitants). Besides that, in Slovakia is common that house building is very close to the stream, therefore is impossible to change somehow river routing, or change the cross...

The present Article discusses recent successive processes dynamics in naturally renovated secondary phytocenosis of landslided territories of rich and diverse mountainous Adjara region. The comparative analysis of soil cover productivity level, floristic composition and cenotic structure of secondary phytocenosis and alongside slopes are made for identification of successive serial stage. The researches show that at lifeless substrates of landslided slopes, phytocenotic structure is formed with gradual establishme...

College of Logistics is engaged in the research of activities within logistics processes from production support to complete logistics chains. In this context, work is being done on the analysis of logistics processes according to the Industry 4.0 concept. The aim of the paper is to show the application of this approach in the teaching of subjects focused on logistic processes. In the paper, we want to show an attempt to manufacturing/production logistics ?as a service? based on digital twins. (We understand that ...

In this paper stochastic model is proposed to estimate the probability of forest fire from anthropogenic load. A point source of anthropogenic load is considered. For example, a rural settlement, a camp, an industrial site, which are located in controlled forest-covered areas. Mathematically, the following model can be formulated. Let?s consider circle with radius in the some set. Then the cumulative distribution function (c.d.f.) of ignition near the neighborhood of the point X0 can be defined. Obvious that all p...

Backward-compatible software allows to change its libraries without rebuilding and adapting the interface used for interaction between its components or other applications (application programming interface, API). Application binary interface (ABI) compatibility is important for application portability. There are ready-made solutions to verify binary compatibility, such as libabigail and ABI-compliance tools. Such tools have several disadvantages. For example, libabigail works only with libraries containing DWARF ...

The article will attempt to highlight the contemporary problems faced by local selfgovernment in the conduct of environmental policy in the administrative-territorial units. The role of the administrative and territorial units in the organization, management and control of the implementation of the environmental policy in the municipality will be presented in accordance with the areas of competence and the possessions. We will also try to outline the distribution of the responsibilities of the local authorities an...

The goal of this paper is to highlight problems of development modern approaches to design the ecological innovation systems on different levels of organization. There is investigation the role of environmental innovations in solving some ecological and economic problems for providing ecological safety and sustainable development. The functional model of the environmental innovation system has been developed. This model is based on system approach and analysis of innovation process. The unified structure of the gl...

Model for a change of the biosystems states on the grounds of Markov chains is offered in the work. One of the main problems of management of the biosystems states is the study of the mechanisms, which determine dynamic features of the processes, taking place in the natural environment. Therefore, there is a necessity in the development of special methods, allowing to study dynamic properties of natural objects without subjecting them to ruination. Naturally, a mathematical modeling method may satisfy this demand ...

The significant centres of settlement on the territory of the Czech Republic have also their suburbs aside from their core areas (centres). The dynamics of outflow of population from city centres to suburban areas influences significantly the global character of a city as such. The influence of suburbanization is currently evident in all larger residential centres. The urbanization of rural population and the extension of administration boundaries of cities lead to distinguished and mutual interaction of the neigh...

An increasing proportion of waste in megapolicies belongs to food waste, including waste of food industries and catering. Currently, this type of waste is practically not processed in Russia and disposed in landfills. However, technologies for food waste processing are known and include composting, accelerated anaerobic digestion, biogas production, etc. This paper discusses the innovative technology of food waste use in the form of a substrate for growing black soldier flies (Hermetia illucens) to produce melanin...

Production of energy carriers that can be conveniently transported and used in the energy, transport, and chemical industry and of materials to be used in chemical synthesis from the available stock of plant biomass and wood is one of the vital tasks enabling the 6th wave of innovation and technology, as biomasses are the natural converters of solar energy into recyclable solid. George Olah has shown that methanol is a universal product for the large-scale industrial production of necessary energy carriers and che...

The article deals with the design of an alternative meteorological network, whose inexpensive metering devices would be installed on non-specified mobile means or at general aviation airports to collect selected spatial data. It analyzes the need for a minimum level of equipment for meteorological measurement systems to ensure the professional collection of analysis and visualization of specific spatial data. The process of analyzing the collection, analysis, and visualization of specific spatial data will also be...

Digitalisation is rapidly evolving worldwide, thus information exchange and electronic products have become an important part of life as well as e-services, which need to be provided not only by companies but also by public authorities. Expansion of digital technologies is seen as an economic, technological and social development phenomenon. Higher education plays a key role in preparing future generations and exploiting the opportunities of the digital economy, thus it is essential that they actively use the oppo...

In the work, composite hydrogel materials based on potassium polyacrylate containing protein hydrolyzate as a filler were synthesized by the method of free-radical polymerization in an aqueous medium. The concentration of the filler (1-5 % wt.), and the concentration of the crosslinking agent (0.05-0.2 % wt.) varied during the synthesis. The obtained samples were studied by DSC, TGA, and optical microscopy methods. It was shown that the polymer sample with a protein hydrolyzate with a concentration of 5 % wt. and ...

Today the use of biomass combustion for the generation electric power is enormously growing. It is due to the worldwide interest in the environmental sustainability and production of renewable energy. With increasing amount of biomass combusted for energy supply, huge quantity of biomass ash is generated worldwide. One of the open questions related to extensive biomass combustion is what we are going to do with this huge amount of biomass ash. Considering both the environmental and economic issues, biomass ash mus...

In the struggle between graphic and electronic communication taking place in our evolving information society, this latter type of communications seems to have a more positive image in society. Such judgment must have emerged as a result of opinions that have been formulated in relation to the erroneously interpreted and assumed environmentally-damaging impacts of printed products and technologies. The author proposes to create an EEFP confirmation label and develop a rating system. Taking into the account the alr...

The information technology input for the building life cycle is more and more intensive, starting with design, through realization and including the use and the operation of the building. The progress in this field is represented by Building Information Modelling (BIM). BIM is in its base object-oriented 3D model of the building, which includes information about the structure, elements and their parameters. This paper is aimed at the proposal of information model for documentation and management of pipeline bridge...

Metro has a number of advantages, which usually have no other means of transport, but due to the many conditions only some cities can afford to have a subway. At the same time, cities that have this transport system make efforts to expand, which is often a consequence of the development of a given city. Proper analysis of the development of a given city, capturing trends and accurate forecasts regarding spatial development and extent in the long-term perspective are one of the necessary steps enabling correct acti...