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The Brown Coal Research Institute j.s.c. is currently conducting long-term research on the development of the Czech Republic’s climate and its impacts on mining activities. The research deals with the overall assessment of climate change in the Czech Republic and the main attention is paid to the area of the Most Basin, which is known as the largest Czech brown coal deposit. In addition, the basic air pollution characteristics in this area are monitored for a long time and trends in relation to climate change are ...

Modern professional geographic information systems (GIS) include a wide range of well-tuned powerful algorithms for processing and analyzing spatial data, but their use is hampered by the specifics of the information environment in which the GIS data operate. At the same time, web technologies can provide an information environment that will allow users to access GIS software from anywhere in the world. The integration of GIS and web technologies provides greater opportunities for collecting, accumulating and proc...

Increasing the number of cars in urban areas and the development of a variety of production technologies involving the use of fossil fuels in the urban environment are leading to a significant increase in air pollution. As air pollution with heavy metals and other chemical elements increases, air quality is deteriorating. Poor air quality, in turn, causes a number of different problems for human health, causes poor feeling and reduces life quality in total. The method of analysis of snow samples is one of the meth...

In absence of core samples and open-hole well-log data, the broken bits of rock removed from the borehole during the drilling process represent in many cases the only lithological data that is recovered from a well. The main objective of this study was to build up a lithological profile and to use the data in order to improve the knowledge about the local geology (Quaternary deposits). Lithological information at shallow depth is generally used to better understand the local site effects, known to play an importan...

A comprehensive study of composites using traditional methods of testing mechanical properties in combination with methods of digital optical and scanning atomic force microscopy made it possible to establish stable correlations between the content of chromium diboride CrB2 additive with an average grain size WC, microstructure parameters, hardness, fracture toughness, ultimate strength at bending and compression. The optimal ratios of the components of the WC–Co-CrB2 system have been established, at which a finel...

Peptide-drug conjugates are therapeutic agents that combine one or more drug molecules with a peptide through a biodegradable linker. Even if the peptides used in synthesis of such conjugates have a smaller pharmacological action than the small molecule of organic drug, they easily penetrate the membranes and then bind to receptors. Peptide-drug conjugates are used in various fields, such as: (i) anticancer therapy; (ii) antimicrobial application; (iii) anti-inflammatory application. In the last decades, researche...

Surface mining method enormously affects the environment in terms of fugitive dust emission than underground mining method. High mechanization in mining operations leads to add heavy load of dust to the surrounding area. Dust not only deteriorates the environmental air quality in and around the mining site but also creates serious health hazards. During coal mining activities, large quantities of coal dust, ashes, polycyclic aromatic hydrocarbons, and heavy metals are released into the environment, forming a compl...

The article presents the current situation of the largest mining regions in the EuropeanUnion, which is the Silesia region in Poland.The current legal conditions regarding the adopted ambitious climate goals in the 2030and 2050 horizon and the resulting obligations of the Member States to reducegreenhouse gas emissions will result in significant changes in the economic profile, inparticular in the Silesia region. The energy transformation is a very complex and longterm process, which includes both technological ch...

The article considers the problem of predictive estimation of deformation processes of geotechnical control objects. It is noted that the main task of geotechnical monitoring is the rapid identification and geodynamic forecasting of geological processes that may affect the safe state of life-supporting and man-made objects, in order to timely develop and take measures to prevent and eliminate emergency situations. One of the most effective ways to timely predict the beginning and activation of deformation processe...

Records of the magnetometers responding to the effects of big earthquakes were noticed more than a hundred years ago. Even then began to dispute what caused these effects: mechanical vibrations of instruments or electric or magnetic oscillations generated by the earthquakes. In Panagjurishte (PAG) observatory we have great opportunity to shed light on this issue because we have four important instruments installed on the site - three different types of magnetometers and one seismometer. Three large earthquakes wit...

Global seismic risk and vulnerability to earthquakes are increasing steadily as urbanization and development occupy more areas that a prone to effects of strong earthquakes. The assessment of seismic hazard and generation of earthquake scenarios is the first link in the prevention chain and the first step in the evaluation of the seismic risk. The territory of Bulgaria represents a typical example of high seismic risk area in the eastern part of the Balkan Peninsula. Over the centuries, Bulgaria has experienced st...

Ecoethics and its various forms are an important phenomenon today. The bad ecological situation and the threat of the ecological collapse of the planet have been the subject of reflection by many theorists. These include multidisciplinary scientists, philosophers and ethicists. In our paper, we focus on the parallel presentation of different approaches by theorists from different industries. We present the biologization of economics, Heidegger's reflection of man's predatory relationship to the present, Ehrlich's ...

In Eastern Europe, Batumi is one of the dynamically increasing touristic center, development of recreational economy where creates some particular ecological issues. The urgency of the matter is also increased by the fact that ecological condition of recreational zone of city sea coast is developed with worsening tendency due to increased touristic flow and anthropogenic load. The main aim of research is to study the mechanism worsening the ecological condition of sea coast`s recreational zone, find out the geogra...

With this article, the author will try to outline the relationship between environmental urbanism, the urban economy and policies to build sustainable cities of the future. Given that worldwide attention is being paid to the problems of climate change, which go hand in hand with the creation of sustainable architecture, which uses green technologies to build a modern city, where the application of the environmental approach is seen as a means of healing and planning the modern city of the future. The emerging tren...

Soil and groundwater resources are natural resources of high ecological value, their protection against chemical degradation and pollution being of major interest and requesting a new methodology based on risk instruments. The need to implement methods for qualitative and quantitative assessment of ecotoxicological risk resides in objective assessment of effects pollutants have on ecosystems, to limit the transfer of xenobiotics to lower and upper levels of the food chain. In this sense, the team of the Environmen...

The presented paper deals with the issue of enhancing soil erosion resistance in the cultivation of crops prone to soil erosion. In the period before growing maize (Zea mays L.) as a main crop, a system of cultivating intermediate crops was tested with the use of clovers. The main criterion in the classification of soil resistance to erosion was the soil aggregates stability (SAS). In 2017, the experimental plot was divided after the harvest of spring barley (Hordeum vulgare L.) into the following four variants: a...

The main goal of research was to assess whether the growing of intermediate crops prone to frost kill could contribute to increase the capacity of arable land for the retention of N-substances. In 2018, a field experiment was established, in which the following intermediate crops were grown in the period between the main crops (wheat - corn): (i) Trifolium vesiculosum Savi., (ii) Trifolium pannonicum Jacq., (iii) Trifolium subterraneum L., and a control variant with no inter crop. The intermediate crops were sown ...

Graphene nanoplatelets (GNPs), a cheap carbon-based material with large surface-to-volume ratio, are currently broadly investigated as a promising reinforcement for composite materials in building industry to enhance particularly their mechanical, thermal, and electrical properties. However, the uniform dispersion of GNPs in composite material is a crucial factor to fully manifest their superior properties. This study is aimed at the design of environmentally friendly composite material based on magnesium oxychlor...

Currently, for the development of industry, it is very important and relevant to create materials with improved properties and parameters. The creation of composite materials based on polymers is promising. YBa2Cu3O6+x (YBCO) particles, according to the Le Chatelier principle, absorb oxygen atoms from the surrounding macromolecules of the matrix, causing a decrease in the volume of the polymer. The effect of nanodisperse fillers from YBa2Cu3O6+x in polyimide composite films on the interactions between macromolecul...

Chemical compounds of natural origin have high biological activity, complex effects on the human body, and safety for health. Preparations based on natural plant raw materials affect the body's adaptive capabilities, acting as factors of nonspecific defense and cofactors of the immune system. The aim of the study is to evaluate the effect of phenolic constituents of plant origin on the phagocytic activity of peripheral blood cells in vitro. Materials and methods. In vitro study of the effect of phenolic constituen...

The current investigation is focused on the preparation and characterization of cerium and manganese oxides by two different but easy to implement procedures and their application as catalysts for ethyl acetate total oxidation, as one of the most difficult to completely oxidize VOC pollutant. The elucidation of the relation between the preparation procedure used and the structure, texture, morphology, surface and catalytic properties of the obtained materials was the main challenge in the study. For the purpose, t...

To better investigate the effect of additives on the hydrate phase behavior and to enrich the hydrate phase equilibrium data in the presence of metal compounds. Hydrate experiments were carried out in the existence of a pure quartz porous medium impregnated with a metallic powder made of 200 g FeSi3, Inconel 718 and CuSn12 alloy, respectively. Results were obtained the entire process of methane and carbon dioxide hydrate formation and decomposition in all cases. In this 949 cm3 lab-scale reactor, metallic powders ...

In this work, experiments have been carried out to study the impact of various stress factors present in the culture medium on the growth and bio-compound production for the microalgae species Porphyridium purpureum. Samples of microalgae have been grown under various stress conditions in a thermostated incubator under mixing and artificial light. Biomass production was determined by removing the cells through centrifugation followed by lyophilization. For exopolysaccharides isolation, the precipitation method wit...

Significant amount of crops yield are lost in the world constantly due to fungal pathogens that inhibit plants in the process of growth or affect harvested products. Rhamnolipids that are detergents produced by bacteria may be efficient environmental friendly alternative of chemical fungicides conventionally used to suppress pathogens. In the present study, the influence of treatment of Fusarium infected cherry tomatoes (Lycopersicon lycopersicum) plants and fruits by a rhamnolipid produced by Pseudomonas fluoresc...

Investigation object: The paper describes the influence of the use of highly effective superplasticizer on the conductivity of cement paste. The paper shows the possibility of improvement the electrical and technological properties of electrically conductive concrete by modifying them with polycarboxylate superplasticizers. Electrically conductive concretes can be used to obtain resistive heaters for snow and ice melting, which are more ecological, then the use of chemical reagents, traditionally used for deicing....

The article deals with new possibilities of electronic documentation eHealth (a global concept of electronic health care) and examines the use of information technologies in health care. It describes the issue of keeping medical records in electronic form and then analyzes the method of implementation of these technologies. The electronic form of this information will greatly simplify and make available the transfer of information. Currently, this form is required mainly from workers in the medical and biomedical ...

The key indicators that have an impact on the success of any organization are employees. When employees have a good relationship with the employer and work together, the tendency is to complete their jobs and tasks faster. Referring to this, this research aims to analyze the components of the employee relationship management (ERM) model and their impact on employee performance. To achieve the objective of the study and to answer the research question, the quantitative method was used, where the population of this ...

Modern space complexes are designed to solve a wide range of tasks, including remote sensing of the Earth in order to assess the geoecological state of territories. The transmission of super-resolution images obtained as a result of sensing to ground-based control systems is traditionally carried out by space telecommunications systems, the requirements for technical characteristics and parameters of which in terms of the speed of information exchange and the reliability of communication are constantly being tight...

The article focuses on the development of an industrial policy towards modernization ofthe resource-intensive sectors of Russian economy based on the principles of BestAvailable Techniques (BATs) and secondary resource recycling (recovery). BATs areregarded as benchmarks for the regulators as they draw up mandatory requirements forthe industry. This way industries would be motivated to introduce innovations andimplement modernization programs, while the regulators should set targets for such atransformation. The m...

The work is aimed at creating methodological provisions to substantiate the safe parameters of the thermal regime in permafrost rocks when constructing underground mine excavations in the Arctic region. An idea is to control the thermal regime by creating mathematical models, taking into account the main technological operations during excavations driving. The paper presents the results of experimental studies and evaluates the thermal impact of various technological processes during the construction of mine excav...

Consideration of the issues of interaction of hydrogeological and geomechanical processes in mining development at water objects in difficult geological conditions is proposed. It is argued that the prediction of the interaction of these processes can be carried out on the basis of complementary deformation approach and the approach based on the theory of cracks. The issues in relation between the mining development and the negative impact on surface and underground waters as well on the safety and technology of p...

Based on the analysis of literary and cartographic material, zonal-landscape characteristics of the development of a producing economy and the emergence of the first environmental challenges in the territory of Russia are assessed. The first environmental problems were caused by a change in the climatic conditions of the life of the earliest settlers and by the peculiarities of the emergence and development of their producing economy. The emergence of the first centers of producing economy in the territory of Russ...

Article discusses the problem associated with the aquifer intensive exploitation, using the example of a region located on the territory of the Caucasian Mineral Waters (South Federal District of Russia). Over the past decades, the mineral waters extraction volume has more than doubled. This was reflected in the distribution of natural vertical hydraulic gradients in the upper part of the hydrolithosphere. And, also, to the intensification of the descending flows and the influx of aquifers polluted by municipal wa...

Russia is at the beginning of the development of a green economy in comparison with industrialized countries. The country is forming the core of environmentally responsible business, which has practice in the production of environmentally friendly products, their certification and competent marketing. Environmentalists note that chemical pollution of the environment has a significant and growing impact on the quality of human life today. First of all are the air, the water and the soil. The overriding goal of mode...

Radioactive radiation is the common part of our lives due to natural sources producing the radioactive radiation. The radiation coming from the nuclear power plants is very law comparing to natural or common sources unless some accident happens. The paper deals with two well-known major nuclear power plant incidents and one local silent accident which took place in Czechoslovakia. Three Miles Island as an accident with no direct fatalities is introduced from the medical consequences point of view. Some longterm re...

Main drivers of the industrial growth in the modern society include energy efficiency, compliance with national legislation and international agreements, social and environmental responsibility. Integration of these factors should be applied to the long-term development plans as the framework of sustainable development, environmental and resource efficiency. Currently, more and more countries are moving towards Best Available Techniques (BAT). Russia developed 51 Reference Document on BAT (BREF) for main industria...

The purpose of this study consists in the evaluation of completeness magnitude (Mc), b value spatial variation and seismic energy release in Vrancea crustal seismogenic area, during the period between 1990 and 2021. This parameters are essential for a correct interpretation of seismicity analysis. For the analyses, we have selected from the Romplus seismic catalog (www.infp.ro) the crustal events with depth 0<h<52 Km, and magnitudes 0.1 <Mw <5.4,recorded from 01 January 1990 to 01 March 2021, in the area bordered ...

The paper analyzes normal corrections for the determination of the normal height differences along the First Order Levelling lines in Bulgaria. Normal corrections are calculated in two ways – with measured gravity accelerations and with gravity data from Global Geopotential Models (GGM). The study uses the last contemporary GGMs developed up to 2160-2190 degree and ultra-high resolution GGMPlus model. Calculations for Bouguer anomalies are made by the calculation service in the International Centre for Global Eart...

Regression analysis is one of the most used statistical methods, where it is necessary to determine the dependence of a certain quantitative (continuous) variable on one or more other quantitative (continuous) variables. The aim is to describe this dependence using calculations of given quantities. The paper aims to find the possibility of using this method in strategic management as a support tool. The research creates a tool in the MS Excel environment, which can find suitable dependencies according to defined p...

The vast territory of the Republic of Sakha (Yakutia), located in permafrost conditions and scattered by impassable roads, creates a serious problem in the energy supply of the population. In this regard, throughout the territory of the republic there are small open-pit mines with a production capacity of 40 to 200 thousand tons of coal per year to meet the needs of local consumers. The advantages of small open-pit mines are the low cost of coal mining, reduction of transport and transshipment costs, provision of ...

Agroclimatic analyses for last three decades indicate climate change to be the most crucial factor that exacerbates agricultural production. In the long run, it will create a global crisis in future if it magnifies without any control. Basically, climate change occurs due to rise in anthropogenic emission of greenhouse gases (CO2, N2O, CH4, freons) [1]. This causes various hazardous phenomena to initiate significant changes not only in energy and water dynamics of the atmosphere but also in agricultural and ecolog...

Recent years, running of multistage hydraulic fracturing operations are wide-spread in horizontal wells and in mid-term fracing will become main influence method on pay zones in Russia. Against this background, question of evaluation and optimization of multiple frac operations is already open. In spite of the significant number of publications addressed the theme of fracture stages evaluation, there is still very much uncertainties in optimization of stages of hydraulic fracturing. Generally most of hydraulic fra...

Unwanted effects of detonation of explosive materials (explosions) can occur due to deliberate actions (terrorist attack) or accidental. Modelling the effects of the explosion on the environment and the urban neighboring, occupies an important place in global and national research programs for the modernization of techniques for the safe use of explosives, in order to combat and operatively counter accidental explosions or those based on their use for terrorist purposes. The current trends are on the way to approx...

Remote sensing measurements of the Atmospheric Boundary Layer (ABL) were performed with a monostatic Doppler sodar system during the period August 2008 - October 2016 near the Black Sea coastal town of Ahtopol. These high resolution data (10 m in vertical direction and 10 min in time) were used in the framework of the project REPLICA to obtain a reference extreme wind speed profile following the criteria for "rare" events of the Intergovernmental Panel on Climate Change (IPCC). Based on the defined reference profi...

The presented work highlights the general geochemical aspects and considers the theoretical basis of the method of geochemical monitoring of oil fields using the indicator of the quantitative ratio of organic compounds and their isomers - isobutane/butane. The object of the study are the microorganisms that can affect gas composition. The purpose of the work is to study the effect of microorganisms on the biodegradation of oil. The peculiarity of the oil composition will be used to search, delineate bypassed oil a...

Floods are natural phenomena which cannot be prevented. In order to avoid and reduce the adverse impacts of floods for human health, the environment, cultural heritage and economic activity it is important to provide flood risk management plans. Development of flood risk management plans under Directive 2007/60/EC are elements of integrated river basin management. For the implementation of Directive 2007/60 / EC, Member States need to carry out a preliminary flood risk assessment based on available or readily deri...

For the first time in geographical science, the article considers the problem of substantiating the principle of a systematic approach to historical and geoecological periodization, taking into account event processes occurring in regional systems of nature management. In the scientific circulation of historical geoecology, the author introduces the concept of "event" - as a historical-geographical category, which is associated with the specific need to operate with a huge amount of information when carrying out r...

The aim of the research is to examine the geotechnical stability of the historical mining works for the Kamenny Vrch deposit with a high percentage of limestone, including examination of the geology of the mining works for the selection of a suitable deep mining method. A complete inspection of the mining works was performed to examine the geotechnical condition of the mining works. Convergence measurements were carried out to determine the stability of individual parts of the mine. Further, a geological descripti...

To date, certain experience in paleolandscape research has been accumulated in various regions of the country. The research is based on the central principles of classical paleogeography. Large-scale paleolandscape mapping was carried out by the authors on the basis of combined landscape and archaeological studies in the key areas of the forest zone of the European territory of Russia. Paleolandscape mapping is based on the combined use of the results of paleolandscape reconstructions, detailed palynological analy...

The dust cloud is the main form of existence of combustible dust in the production area and together with the existence of effective ignition sources are the main causes of dust explosions in production processes. Dust explosions are mainly characterized by the minimum ignition temperature, explosion limits, the minimum ignition energy, maximum explosion pressure and the rate of pressure rise. The explosive behavior which is represented by a mixture of air and flammable substance is influenced by many factors of w...