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The stone dust coming from stone processing plant located in Ostrom??, Czech Republic, was examined in the presented paper as an alternative recyclable environment-friendly material which can be effectively being used in construction as partial replacement of natural sand. The tested dust is grey-brown colored and is a byproduct of sandstone processing from quarry Podhorn? ?jezd. Before the characterization tests, the delivered stone dust was sieved on a certificate test sieve with a 0.25 mm mesh size. First, basi...

In the recent years, the climate changes have determined the increase of the frequency of flood, and concurrently, negative effects of these weather phenomena were amplified by other factors (the deforestation, needs of the hydro technical works, etc.). Atmospheric precipitation contributes to formation of superficial runoff, or accumulates in the snow in the winter, sometimes participating during melting to form the maximum runoff. The consequences of this rainfall can be serious in terms of erosion and soil wash...

Grapevine pruning is one of the most essential tools to ensure grapes quality and efficient yields of vineyards. Vine horticultural performance and leaf physiology of grapevine are influenced by viticultural practices. One of these practices is represented by pruning. The purpose of the present study was to evaluate the effect of pruning system on leaf physiology and vine performance. Currently, viticulture as a sector of agriculture is a priority sector for national and European Union policies that receive suppor...

Climate change will lead to an intensification of the hydrological cycle and can have a major impact on regional water resources. A change in water volume and distribution will affect both groundwater and surface water reserves usable in industry, domestic activities, irrigation, navigation, aquatic ecosystems, hydropower and some recreational activities. Changes in the total amount of rainfall, in their frequency and intensity, directly affect the size and times of floods and droughts. The impacts of climate chan...

The deviation from the design shape of an underground structure cross-section and its influence on the structure stress state are under consideration. External loads, corrosion and peculiarities of construction techniques, are assumed as the most probable causes of the deviation. The influence of shape changing is estimated by the analytical design method for multilayer underground structures with layers of variable thickness. The method is based on a rigorous analytical solution of the corresponding plane problem...

In this article, the idea of a project for the development of navigation information support for open-pit mining operations (NIS OPMO) is considered in the form of a system of high-precision satellite positioning of all open-pit lease mobile and static objects, allowing the determination of their location with an accuracy of centimeters and data transmission of this information to the situation center. Developed by NIS OPMO, it will allow digitalization of mining in quarries and will become the basis for work on t...

Underground hard coal exploitation leads to the formation of granular porous media. These media occur both in the underground parts of mines and on the surface. In the underground areas, these are the caving goaves of longwalls and the caved-in roof rocks in active mine headings. On the surface, these are most commonly the post-mining waste dumps. In both of these cases, a crucial role is played by the knowledge on the resistance of air and gases flowing through these media. In the case of underground exploitation...

The digital economy is the basis for the development of society as a whole and has an impact ona variety of sectors of the economy, improving the quality of life, expanding the accessible environment for people. There is a need to determine the degree of readiness for the transition to the digital economy of all participants in the process: the business community, the government and the population. International and Russian indices are being developed to determine the position of countries. The low position of our...

Design risk is an inherent element of construction works, and one of its sources is the spatial data quality. Cases of damage to underground pipes and cables are often the causes of accidents, delays or construction stoppages. One of the directions of research on this risk is fuzzy logic. Fuzzy logic is used to describe complex or poorly defined phenomena that are difficult to describe by using probabilistic methods. The paper presents the method of risk assessment of underground utility networks damage which is b...

The research object was the D?ugie Lake in Olsztyn (north-eastern Poland) (area 26.8 ha, maximum depth 17.3 m). It is a stratified, bradimictic urban lake - a depth index of 0.3 indicates a deep recess of the lake's bowl in the ground. In the past, the lake was almost completely degraded as a result of the discharge of raw domestic sewage. After applying two methods of restoration (artificial aeration with destratification and the phosphorus inactivation), the quality of lake water was improved. The data of multia...

As the initial data, we used the results of recording the Earth's magnetic field at the Geophysical observatory "Mikhnevo" of the Institute of Geospheres Dynamics (54.959?N, 37.766?E), carried out in the period 2010-2015. On the basis of the results of instrumental observations, it is shown that in the spectra of geomagnetic variations the quasiharmonic component is clearly distinguished, the frequency of which is close to the basic spheroidal mode of the Earth 0S2. In periods of 15 days after three major earthqua...

In the world community, some experience has already been gained in the development of the "green economy". The Baltic States are in search of rational forms of combining objective indicators and criteria for applying them in the planned plans for the development of a "green" economy, taking into account the specifics of the economy and the availability of the resource-resource potential of the Baltic region countries. The sectors of the green economy that have a high green potential and play a major role in divers...

The research is based on the materials of the scientific project, whose goal is to develop and create an electronic atlas of socio-demographic development of the Republic of Kazakhstan using GIS technologies. Atlas maps was created based on spatial geodatabase of social and demographical indicators of the Republic of Kazakhstan. Currently, an electronic atlas of the socio-demographic development of the regions of the Republic of Kazakhstan consists of two blocks of indicators: social and demographic. The social bl...

In the work we offer an approach of the development of the web platform which could be used as prototype for software which is aimed for usage of information based on geospatial data. We consider weather information as an example of data which are connected with map information. We used Google Static Maps API and Yahoo Weather API in sample project. JSF-technology and Facelets are used for the presentation of web pages. The development of application is based on JavaBeans architecture which supports the features o...

Among the carbonaceous ores, the shales occupy a special position in terms of formation, petrographic and chemical composition, and in their characteristic role in the development of the fuel and chemical industries. One of the promising types of this raw material are dictyonema shale, which volumetric deposits are present in the territory of the Leningrad region and the Baltic countries characterized by an increased content of molybdenum, vanadium, silver, lead, copper and other rare and dispersed elements.

Research aim of the present paper is to present an evaluation of the presence on wild strawberry (Fragaria vesca) of one of the most important leaf pathogens which create yield loses to common cultivated strawberry cultivars from the western part of Romania. This pathogen is Mycosphaerella fragariae. The biologic material consist from an assortment of four different population of wild strawberries. Technology used in the experimental field was the standard applied for this location. The experience was implemented ...

In the process of growing organic products farms face many problems including the need to treat phytopathogens without fungicides or to increase yields without mineral fertilizers. In organic farming, agents of biological control as well as nonconventional organic fertilizers can be used to achieve these goals. One of the main problems with biocontrol agents is that their survival after introduction into soil may be very different since it depends on many biotic and abiotic factors in soil ecosystems. The problems...

The central part of the East European craton (EEC) is the site of extensive mining activity. The small aperture array ?Mikhnevo? (MHVAR) monitors the weak seismic events in the distance range about 500 km. The most of them are identified as industrial explosions using the S/P amplitude ratio, day-time distribution criteria, spectral content, recurrence and clustering of events. The detailed analysis of waveform variations allows monitoring of the change in the position of the explosion as well as the subtle change...

Background: In the classical kinetics theory of a nuclear reactor, inserting the slightest reactivity-jump leads to an unlimited exponential increase in the reactor power. The purpose this study is the establishment of the nature of such a phenomenon. Methods: Theoretical research is based on the physics of the chain fission reaction as a sequence of cycles, each cycle of which is initiated by neutrons of the previous cycle. The study method consists in determining the change in the output neutron density of the c...

Technical progress in the field of 3D modelling resulted in increasing use of such technics to create a virtual 3D models of objects. Three-dimensional spatial models are used in a wide range of applications such as inventorisation of architecturalconstruction, an inventorisation of archaeological sites, medicine and wide-known engineering. Spatial models are created based on the point clouds acquired with laser scanners or photogrammetry. Each of these data acquiring methods has its advantages, limitations and ac...

Global issues such as resource scarcity, climate change, land and ocean pollution linked to the widespread growth model of production and consumption have led to the introduction of many concepts and approaches such as 'sustainable development' and 'green growth', and etc. It is also a circular economy, and it has many similarities to these concepts and approaches that deal with the relationship between people and their environment. However, it has distinctive use and, in principle, has more radical consequences t...

Crystal dextrose is produced from solutions by enzymatic hydrolysis of starch. The process of crystallization of dextrose is the most complicated and responsible. The nucleation stage is particularly difficult. The common theory of crystallization connects the rate of nucleus formation with the surface tension of the solution. The purpose of the research is to activate the crystallization process by using surface-active substances (surfactants). Aliphatic alcohols: butanol, propanol, isobutanol, isopropanol were u...

A new trend in concrete technology is to introduce photocatalytic concrete, also known as a self-cleaning concrete. This technology is based on the addition of TiO2 (titanium dioxide) to concrete mixes. Photocatalytic activity of TiO2 and its hydrophilic properties make it suitable for addition to building materials, particularly in architectural concrete or self-consolidating concrete. When concrete surface is exposed to the sunlight most pollutants are neutralized. In the present study the influence of addition ...

In model experiments, the influence of various media on the degree of transformation of kerogen of the Domanic rock in hydrothermal processes was studied. The object of the study was a sample of the rock, from the interval of depths of 1712.5-1718.5 m of the Semiluki-Bureg (Domanic) deposits of the Berezovskaya area of the Romashkinsky deposit, which is a dark gray marl alternating with limestone. The content of OM in the rock is 11.73%, according to the thermal analysis data, a significant part of which (9.56%) i...

Nowadays a biomass belong to main sphere of interest by reason of global energy politics. A many researcher works are concentrated on feasible solutions according with the politics a main strategy to elimination of energy and environmental load. This work is fall under solutions for energy saving and fossil fuel substitution by biomass. In concrete, the interest of authors is in iron ore sintering area and utilization of biomass as a part of sintering mixture or as a partial replacement for agglomeration coke. The...

Observation of clouds with radars in millimeter wave range is one of the most powerful remote sensing methods to derive information on interior of clouds. We have developed and are operating a cloud profiling FMCW (Frequency Modulated Continuous Wave) Doppler radar named FALCON-I (FMCW Radar for Cloud Observations) at 95GHz. It is a bistatic antenna system, which is usually used for FMCW radar, and consists of two 1m-diameter antennas with high spatial resolution of 0.18 degree FWHM. A High range resolution of 15m...

Agglomerate is a basic input materials for the production of pig iron in the blast furnace and has in integrated metallurgical cycle important place. Industrial production of agglomerate and pig iron is a material and energy intensive and at the same time it has a negative impact on the environment. The role of searching for new additional energy carriers for the metallurgical industry in Slovakia and in the world is highly relevant. For sinter plant it is typical that the amount and types of contaminants are very...

The impact of the extreme atmospheric conditions in the context of climate changes is a topic often studied at a global scale. The aim of the presented work is to analysis the extreme wind condition at a much smaller scale represented by the Black Sea area. For this perspective, the presented paper presents a comprehensive picture of the extreme atmospheric conditions along the coastlines of Romania, Bulgaria, Turkey, Georgia, Russia and Ukraine. More precisely, eight geographical locations were analyzed, together...

Hillslopes comprise the greater part of the landscape and as an integral part of drainage basins; they provide water and sediment to water courses. Also, hillslopes are frequently used in agriculture. Soil erosion caused by water is a natural phenomenon, but the negative effects are accentuated by human interventions in the landscape. Soil erosion and nutrient loss are detrimental to agricultural products, food security, and the sustainability of ecosystem functioning. In recent decades, the increased using of che...

The quality of the operation of broadband wireless computer networks is largely determined by the mechanism of an ordered centralized poll of terminal stations, called polling. The models of polling systems adequately describe the operation of broadband wireless networks under the control of Wi-Fi and Wi-MAX protocols with a centralized coordination function (PCF). Despite the complexity and high cost, the equipment supporting centralized management most effectively uses the most valuable resources of a broadband ...

This paper handles the sustainable development tools used to support the development in bi centric Hradec Kr?lov? ? Pardubice agglomeration. Because the agglomeration is unique in its type ? a conurbation forming the agglomeration core ? the adjustment of mutual relations in the cooperation towards sustainable development of the agglomeration is important. One of the tools is ITI strategy which is aimed to set up and deepen the cooperation of not only the core cities but also other municipalities situated in the a...

The purpose of this paper is to outline the findings of the study into the quality of water used for oil-field water injection operations to support the reservoir pressure. Comparative assessment of injection water quality at cluster pump stations has been carried out by means of a particle size distribution analyzer. The device was used to measure the particle size distribution in wastewater. Water samples from cluster pump stations located in the area producing oil from the Romashkinskoye oil field, Devonian for...

Mountainous Dagestan (Eastern Caucasus, Russia) is one of the world centers of terraced arable farming. Long history of agricultural development of the region led to significant changes in the soil forming conditions and resulted to increase in the volumes of the soil layer. As an example of the effects of terraced farming on the soils ballance, we investigated a set of agricultural terraces near the Jaba village (41.423614, 47.776390) in the Dagestan Republic of Russian Federation (Eastern Caucasus). The terraced...

Alzheimer?s disease (AD) is associated with conformational changes of amyloid-? peptides, which result in peptide oligomerization and fibril formation and, finally, in the appearance of senile plaques and extensive neuronal loss. However, the factors regulating the process of plaque-associated beta-amyloid peptide (A?) aggregation are only partly understood. Therefore, several ?-amyloid peptide fragments have been synthesized by SPPS according to Boc/Bzl strategy. Binding of metal ions to ?-amyloid peptides was st...

An important problem in assessing water quality is that the data on water pollution and their analysis are formed over the previous period, and as a result, it is difficult to assess the current status of water resources, the more likely it is to predict it for the future period, which would allow timely action on improvement of the ecological state of water. The purpose of the work is to evaluate the possibility of using neural networks to simulation of surface water pollution. The data are derived from the resul...

Process and plant design need to be continuously improved, the use of new safety concepts to a full extent being one of the key parameters leading to their sustainable improvement. Accidents occurred over time in industrial facilities where explosive gas or vapor atmospheres may be present have put the explosion risks high on the agenda of regulators, operators, accident investigators or researchers in the field. Accidental flammable gas leaks in mixture with air may generate explosive atmospheres which once ignit...

The object of study was Wolszty?skie Lake, (area 124.2 ha, max depth 4.2 m). That water body is flow-through lake type and it is alimented by Dojca River and total catchment area is 193,5 km2. The lake was restored using phosphorus inactivation method ? in the 2005-2006 years an aluminum coagulant PAX 18 was used for treatment and in 2013-2014 years ? iron coagulant PIX 111. The results of research revealed, that the amounts of phosphorus fractions in the bottom sediment have changed. In the 20 cm thick sediment c...

Due to the rapid increase in the global energy consumption of fossil fuels there has been an urgent demand for the development of alternative energy sources, one of them is a hybrid asymmetric supercapacitor. Electrode materials play a significant role in providing high performance for them. It was proposed as a cheap and environmentally friendly material to use activated carbon derived from plant raw materials. The properties of activated carbon derived from birch wood, corn trunks and leaves and beet pulp as ele...

The Kaizen concept represents a continuous improvement approach to exploiting the potential of human capital. Employees are the bearers and co-creators of values and their performance contributes to increasing efficiency and therefore education strategies need to be directed to the education of university students, potential workers in enterprises in the labor market. In education, there is scope for using the Kaizen concept as an incentive tool that increases the quality of human potential and the level of human ...

The article covers the issues of public environmental control and of public control of land use in order to preserve and restore the environments, manage the nature efficiently and protect the natural resources as well as strengthen the law rules in the course of activity by the legal bodies at different levels. Modern, reliable and available spatial data is necessary for efficient implementation of public environmental control and of public control of land use by the public institutions and societies, private non...

Air injection technology is an effective method for enhanced oil recovery (EOR). The advantage of this method is that it can be used for different oil reservoirs, such as light oil, medium oil and heavy oil. The composition of crude oil has an important influence on the oxidation behavior. Therefore, it is necessary to study the oxidation behavior of different crude oils. Differential scanning calorimetry (DSC) has been widely used to investigate the oxidation process of different fossil fuel, such as, crude oil, ...

The paper informs about the process of development and testing of dynamic cone penetration test semi-automatic data recorder. Dynamic probing is widely used in-situ testing procedure. The test principle is to drive a rod with a cone tip on its end into a soil by a ram. During the test an operator records the number of blow count and value of torque moment evaluating the soil lateral friction with rods. Keeping the handwritten record during test is a concentration demanding process providing large room for human er...

The creation of footings and foundations with an increased load capacity is a crucial task of modern geotechnical construction. Among all the existing technologies pertinent to the construction of such foundations, underground structures, such as bored piles of large diameters, are most strongly sought-for. The existing construction technologies, in which such piles are used, make it possible to realize substantial values of load capacity (Fd). This parameter may be increased just via changing the length and diame...

The field of construction is considered as a priority in terms of influence on the environment. Attention of researchers is now focused on composite materials made from natural or recycled fillers with clay, cementious or polymerics matrices, among which the non-toxic and biodegradable - Eco-composites, are highlighted. These are attractive because they are safer and more environmentally friendly. Eco-composites are a special category of composite materials, using materials that have the least impact on the enviro...

Reducing energy costs and cost of production is a strategic goal of an industrial enterprise in the field of energy conservation and energy efficiency. The main driving force for the activities of the organization is staff. Therefore, the constant increase of knowledge and competence of employees on energy saving and use of secondary energy resources are the main points of the social and environmental policy of the industrial enterprise [1]. Only by motivating and involving staff, improving the control system, imp...

The aim of this article is assessment biochar bioremediation potential in the benzo[a]pyrene artificially contaminated Haplic Chernozem with various doses of benzo[a]pyrene (200, 400 and 800 ?g/kg) equivalent to 10, 20 and 40 levels of maximal permissible concentrations (MPC) and 1-5% biochar amendment. The main subject of this study is to research the most effective dose of biochar amendment in benzo[a]pyrene contaminated soil in a model experiment with chernozem. The content of benzo[a]pyrene in soil was determi...

The flooding of the remaining gaps of the former quarries is a process that can be achieved naturally, by influx of water from various permanent and/or temporary sources such as rainwater, superficial water courses, underground water or artificially, through water adductions from other nearby water sources like rivers, lakes etc. Knowledge of hydrographical, hydrological and hydrogeological conditions specific to a region where open-pit mining operations are carried out allows the assessment of the available water...

Coals, being heterogeneous matter in general have very complex composition. In South Africa, coal is mainly utilized for electricity generation followed by metallurgical and industrial usages. During the combustion of coal as the main utilization process, there are different chemical components released and these have been found to be the cause of many challenges of using coal for fuel. Out of many challenges of coal utilization, there is the release of SOx, NOx and other harmful minerals, which are highly attribu...

Unglazed transpired solar collectors (UTC) are simple and effective devices for applications such air heating, induced ventilation, crop drying etc. A numerical model for typical unglazed transpired collector is proposed with blackened plate exposed to the sun and circular holes on square pitch arrangement in no wind working conditions. The steady-state conservation of mass equation, momentum and energy equations were considered in order compute the air pressure and velocities, flow pattern and the total air heati...

The belt conveyance plays an important role in mining, bulk material transportation, raw materials processing, and in many other areas (e.g., metallurgy, wood-cutting, and energetics) where large quantities are transported over the distances ranging from a few meters to several kilometres. A conveyor belt, as the basic element of the mining transport, is of particular economic significance. Increasing the belt service life, which can be achieved by reducing the wear of conveyor belts, has a high priority. The top ...