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Site assessment using risk-based methods differs substantially from traditional Quantity-Distance siting. It allows for complex evaluation that considers additional factors such as facility design, the number of individuals exposed to the hazard, and the annual probability of an explosive event based on the activity. All of this factors are risk contributors and must be aggregated into a cumulative risk number that represents actual risk. The number representing cumulative risk is extremely useful when compared to...

The wood market is constantly undergoing transformation, which leads to the variation of the price of wood, sometimes significant, from one area to another. In addition, the geographical distribution of forest species and the needs of the woodworking market often make that the wood necessary to be purchased from long distances, so transported over considerable distances and with considerable costs. Thus, the article aims to analyse the transport distances for wood mass purchased by a woodworking company from Braso...

The purpose of the article is to analyze the unloading times of the raw material used in manufacturing OSB boards. In this regard, there were centralized all the entries of raw material from July and October 2016, when the wood was transported on roads. Data analysis was done taking into account the type of means of transport (truck or trailer truck), volumes and species transported. It has been found that, as a rule, the means of transport comply with the tonnage allowed on public roads, but there are also exceed...

The frequency of extreme meteorological and climatic phenomena in Bulgaria has increased in recent years. Especially since the mid-1990s, a series of disaster meteorological situations have caused serious material damages and human casualties in many regions of Bulgaria. Annual precipitation amounts have increased during the last 10-15 years, mainly due to the contribution of heavy rainfall events. The main objective of present study is seasonal analysis and synoptic classification of extreme precipitation events ...

In the summer period of 2018 satellite-tracked quasi-lagrangian drifter was launched in saline stratified Lake Shira (Republic of Khakassia, Russia). The analysis of obtained data was revealed a mesoscale vortex structure in the lake. At the same time, measurements of the current velocity were carried out at several points in the lake using an Acoustic Doppler Current Profiler (ADCP). The reliability of the data obtained using the quasi-lagrangian drifter is confirmed by a comparison with the data for the current ...

Photovoltaic technologies ensure the security and diversity of the energy supply without any negative impact on the environment, playing an important role in the production of electricity. At the moment photovoltaic systems oriented to energy performance have a relatively low efficiency, in contrast to the types and technologies of PV, but also the context of their use. The performance in terms of efficiency and long-term electricity generation depends on the current voltage parameters that differ depending on the...

Given the geographical extent of Russia, its highways play a crucial strategic role. Combining territories through the mass transfer of freight and passenger traffic and providing access to various resources, the road infrastructure facilitates the development of the constituent entities of the Russian Federation. At the same time, any unsolved problem seriously hampers the economic development of both the country and its regions. Waste during the maintenance of roads is generated during their operation as a resul...

The paper deals with the actual problem of assessing the quality of video content transmission in modern wireless networks. A review and analysis is made for the quality level of the currently most popular protocols and technologies for transmitting video content in wireless networks. It analyzes video content transfer technologies based on the HyperText Transfer Protocol (HTTP), namely HTTP Progressive Download (HPD) and HTTP Adaptive Streaming (HAS). For HTTP Progressive Download and HTTP Adaptive Streaming tech...

Soil Swelling is a relatively complicated phenomenon not yet fully understood by researchers; however, it has been proved to be a physiochemical phenomenon related to soil and location. A tunnel support system can undergo failure upon completion of construction unless sufficient knowledge of expansive soil behavior is obtained and due procedures are followed to prevent the adverse effects thereof. This is a comprehensive study conducted on the physiochemical parameters affecting soil expansion, aimed at determinin...

Air pollution has a negative impact on human health and the ecosystem as a whole. It causes a variety of diseases, such as asthma, various lung diseases, cardiovascular diseases, which particularly affect children and the elderly. The aim of the study is to determine how the preparation of melted snow samples for analysis influences concentrations of lead (Pb), zinc (Zn), nickel (Ni), vanadium (V), copper (Cu), manganese (Mn) in snow samples. For snow samples analysis ICP-OES spectrometer "iCAP 7000" is used. In s...

It is shown that the corrosion-electrochemical behavior of coatings with iron (cobalt) tungsten alloys depends on the content of the refractory component, and the increase in chemical resistance in an acidic medium is due to the formation of acidic tungsten oxides on the surface. The use of artificial neural networks allowed us to identify the most significant parameters that determine the corrosion resistance of alloys. Electrolysis was carried out in a glass cell for a two-electrode scheme using planar positione...

The article presents the materials of research conducted in the North of European Russia since 2004. We have studied soil, water and bottom sediments of rivers and lakes, biomaterials of the river inhabitants, and ground vegetation. For more than a 10-year period were accumulated actual data on concentrations of mercury in various components of the ecosystem of the mouth area of the Northern Dvina River, especially the interesting situation with the environment around pulp and paper mills (PPM). The main factor de...

In this study, the anomalous geomagnetic variation related to the moderate Vrancea earthquake (Mw=5.5) on 28 October 2018 was shown. This anomaly and its associated seismicity were analyzed and compared with a similar anomaly which occurred on October 2016- May 2017. To better distinguish the seismotectonic anomalies from external geomagnetic variations (geomagnetic storms), the datasets recorded at Muntele Rosu (MLR) located inside seismogenic zone were compared with datasets recorded at Surlari (SUA) located at ...

The problem of negative anthropogenic impact on formation, distribution and usage of groundwater within the platform denudation plains of the arid zone of Central Kazakhstan is quite relevant. This region faces an extreme environmental pressure, and at the moment is undergoing a strong anthropogenic effect. High rates of exploration of mineral, energy and agricultural resources resulted in creation of towns and large industrial agglomera-tions (Karaganda, Zhezkazgan, Balkhash) and a big number of villages (Aksuat,...

In this study, the antibacterial properties of pharmaceutical grade kaolin modified with copper were tested to determine its suitability to be used in pharmaceutical and cosmetic applications. Both kaolin?s and copper?s antimicrobial activity have been highlighted by multiple researches. The sample was prepared by submerging the kaolin into saturated CuCl2 solution in order to load the nanoparticles with copper, utilizing the cation exchange capacity (CEC). Mineralogical analysis was conducted by X-ray diffraction...

The purpose of the paper is to obtain a new composite material based on chemically functionalized nanoparticles dispersed in plastomer matrix. The dispersion of the ZnO nanoparticles in a plastomer matrix (PETr) leads to a high-performance polymeric material with multi-functional, antibacterial, and plastomer-specific processing properties. In this paper, elastomeric nanocompound materials were selected, due to performance properties such as: antimicrobial, resistance to aggressive chemical agents, mechanical prop...

This work is focused on antioxidant activity of various types of horticultural crops. Several types of vegetable and fruits were analyzed by free radicals scavenging method using 1,1-diphenyl-2-picrylhydrazyl (DPPH). In this work various methods of analysis results expressing were evaluated. The results were expressed, in terms of the widest applicability, while the simplicity of the serial analysis were maintained. Percentage of inhibition of free radicals was expressed per unit sample weight and standard pipetti...

Nowadays, the movement of pedestrians in the parterre of settlements is a very important and topical issue in the area of landscape planning. Through planning Smart Cities, walking peoples are an indispensable service to the environment, because without them the inner urbanized area misses its basic use. Pedestrian movement in the settlements is the basic and evolutionary oldest type of human movement. It has many advantages - it minimizes the burden on the environment, is beneficial to health, builds social and c...

In this study, three different waste biomass (soy waste biomass, mustard waste biomass and rapeseed waste biomass) resulted after oil extraction, were used as biosorbents for the removal of some heavy metal ions (such as Pb(II), Cd(II) and Zn(II)) from aqueous media. The biosorptive performances of each waste biomass were evaluated as a function of metal ions concentration in aqueous solution and contact time, and the obtained experimental results were modeled using Langmuir isotherm models and pseudo-second order...

Network slicing is one of the key features of fifth generation (5G) system. Network slice is a virtual network including Radio Access Network (RAN) and Core Network (CN). The most typical scenario of utilization of network slicing is the setup of multiple slices within a single operator in order to cope with different User Equipments (UE) and service requirements. In alternative scenario, network slicing may be provided as a service, i.e. network slices may be setup and modified by 3rd parties. Currently network s...

The aim of this study was to evaluate the effects of plant biostimulants Agriful and Trichomil on selected quantitative and qualitative parameters of pepper fruits. To the small plot experiment were included 2 hybrid varieties: Kapirex F1 and Esperansa F1. The experiment was carried out in the unheated plastic tunnel in the Botanical Garden of the SUA in Nitra (Slovakia) in 2016 and 2017. We observed three variants: control (without application of biostimulants); Agriful variant (5 times application of Agriful at ...

In Bulgaria, a promising method for creating underground gas storage is the use of aquifers. The main prerequisites are: the presence of reservoir systems with a favorable combination of permeable and shielding rocks; hydrogeological and thermobaric conditions marking the chemistry and dynamics of water, the phase state and the quantities of stored gas; the structural-tectonic conditions defining the type of the perspective traps and their architecture; Neo-Seismotectonic activity, determining the degree of seismi...

In recent years, there has been observed an intensive development of consumer unmanned aerial vehicles (UAV). Their advantage is a relatively low cost compared to typical aircraft constructions. The UAV equipment in recording devices allows them to be used for surveying, volumetric measurements, vegetation index calculations (including the normalized difference vegetation index) and thermovision analyzes. Due to the high resolution, the materials obtained from UAV can be a source of information, among others for d...

Biophilia should be understood as a love for nature. Although the term is not new and appeared in the 70s, it is only now gaining popularity. This happens when humanity noticed that progressing technologization and urbanization leads to the breakdown of direct contact with nature, which may result in problems with good psychophysical condition of a human being. Considering biophilia in the context of architecture is therefore extremely important. In this approach, it is understood as the dependence of man on natur...

Large arctic projects, both on land and at sea or in coastal zones, have to include the management of natural risks using the tools of geo- information support of decision-making, as part of geo-information management for territorially distributed systems. We consider the development of a system for monitoring the versions of data within geo-information support for Arctic projects. Data can come from different sources, including satellites. Then obtained data are combined into a single network (cluster) to create ...

Integrating conventional well log interpretation with high-resolution borehole electrical image analysis enables a complex understanding of the geological formations intercepted by exploration wells. Whereas conventional geophysical well logs allow the determination of the main reservoir parameters and the fluids distribution, borehole imaging serves as a valuable tool in sedimentary features identification and interpretation, regional dip determination, structural and tectonic elements identification, as well as ...

In general, there is a long-term emphasis on the support of educational facilities at universities, according to the latest trends. Above all, it is about using progressive learning forms, proven methods and also linking higher education with practice. New teaching methods are being used more and more frequently as part of education at technical universities. Many modern and more efficient methods are used. It offers students new teaching methods to make their learning more attractive and better. At this case, it ...

The Kuznica Warezynska surface reservoir with an area of 5.6 km2 is located in the Silesian district, southern Poland. It was established in 2006 as a result of flooding of a sand pit after over 40 years of mine operation. Currently, it has various functions, the most important of which are flood control and recreational. The long-term dewatering of the pit and its subsequent flooding caused significant changes in the geochemical conditions in the Quaternary aquifer composed of sands and gravels. In addition, nume...

The problem of intense water pollution by nitrogen and phosphorus compounds is very significant in the 21st century. The pollution is caused by the widespread application of traditional fertilizers in the cultivation of agricultural crops. Nowadays, the research is carried out and the compositions of fertilizers similar in structure with glassy phosphate materials are developed. Inorganic materials, such as carbon fibers, graphite [1], porous glass, silica gel, are widely used for soil, wastewater and air purifica...

Over the past years the evolution of geodetic instruments is taking the way of minimalization and mobility. Remarkable technological progress can be recognized on a field of mobile scanning. Wide variety of usage of handheld laser scanners and its accuracy of measurement in comparison to other geodetical methods was settled as the main objective of this contribution. The introduction of article is concerning about the problematic of documentation of historic landmarks. Following pages are describing the methodolog...

Obtaining reliable data on the ongoing risky geo-processes and obtaining adequate and reliable information about them on the current state of the Earth's surface is a key factor in tracking the origin and dynamics of landslide processes as well as assessing the resulting threats to the population and infrastructure. According to information provided by the national authority responsible for the monitoring and keeping track of the landslides over the past two years their number has almost doubled. This is the main ...

Nowadays new technologies influence higher education very much. They affect students? worldview and encourage the quality of the education to grow. Recently one of the educational characteristics is online resources application during the study. It makes access to knowledge much easier. This theme is very actual regarding to the digitalization of the economy. In this paper the models of online courses application in higher education are explored. They are influenced with the requirements of educational organizatio...

The production of cavity blocks, also referred to as concrete masonry blocks (CMU) or concrete lost formwork, takes place in a mobile or stationary press by extruding a special matrix through solid fresh concrete. This production is relatively cheap, simple and fast, provided we have the appropriate press. This article examines whether such concrete blocks can be manufactured without specialized equipment. This can be beneficial, for example, in slums or areas dependent on humanitarian aid, where there is not enou...

The article brings knowledge from the theory of transport systems. The aim of this article is to propose a mathematical model for the calculation of combined airline systems. Air carriers, when choosing a network type, decide mostly between the two basic types, which are ?Hub and spoke? or ?Point to point?, or their combinations. The choice of network type depends on a number of criteria, in particular the business model and the product offered, which distinguishes Low-Cost Carrier from Full-Service Carrier. Full-...

The paper describes the results of 1D geomechanical modeling in the territory of Akan oilfield in the Republic of Tatarstan, the Russian Federation. The data of sonic and density logging, which are the basis in the construction of the geomechanical model, were analyzed. The velocity and density properties of carbonate rocks in the study area are stable both along the section and the strike. Sonic waveform logging data were processed for a number of reference wells. The results of processing were taken as the basis...

Transport and environment rank among current global problems as the transport and the environment are closely interconnected. The environmental impact of all types of transport is manifested in various forms, such as noise, environmental pollution by harmful substances, soil demand, etc. These issues are rather complex, and the solution thereof is even more complicated. The current situation in the transport of materials is characterised by increased performance of means of transport and the reduction of their neg...

The fundamental political right guaranteed by the Constitution of the Slovak Republic is the freedom of expression and the right to information, without this right the existence of a genuine democratic establishment is not possible. Democracy and its basic principles, expressed in the Constitution and in the laws of every democratic state, represent a legal institution in terms of the theory of law. As it follows from Article Number 26, Paragraph 1 of the Constitution of the Slovak Republic, freedom of expression ...

The possibility of the application of satellite bathymetry methods was studied in order to obtain quantitative parameters of the depth of the coastal part of the Astana reservoir (Kazakhstan). The relevance of the research is associated with the application of new technologies for the operational evaluation of changes in the level of the water line and the volume of the reservoir, which supplies Nur-Sultan, the capital of Kazakhstan, with drinking water. The initial data were satellite images with different resolu...

Geographic Information System (GIS) is a computer system build to capture, store, manipulate, analyse, manage and display all kinds of spatial or geographical data. GIS can also be used in the mining sector, to manage various mineral resources or to manage the exploitation of different minerals. This enables us to have in disposition all data, to all ore deposits and exploitation places, at one location and at the same time, enabling viewing, reading and printing those data that interest us. Having the data of dif...

The objective of this research is to analyze the multifractal behavior of geomagnetic field corresponding to the well-known 27-day variation (solar rotation period) and its harmonics and the 1-day (solar diurnal) periodicities. We discuss the multifractal behavior of geomagnetic variations recorded at the middle latitude stations, using wavelet transform modulus maxima (WTMM). The WTMM is capable of partitioning the time and scale domain of a signal into fractal dimension regions, and the method is sometimes refer...

The paper treats the problem of water eutrophication for hilly lakes. Water quality monitoring evaluates the physical, chemical, biological and bacteriological parameters of the water in relation with ecological conditions of the environment and of human health. Our researches followed the evolution of the ecological potential and the chemical state of the water between 2014 and 2018. It was defined the concept of eutrophication for hilly lakes water, it have been established the causes of this process, and it was...

The studies for Recent Crustal Movements by the aid of space geodesy techniques are integrated into the researches on the Earth?s crust dynamics, as a reflection of the complex geodynamic phenomena that occur in the crust and in the subcrustal lithosphere. In addition to the fundamental nature, the research in this field presents a practical characteristic, competing alongside geology and geophysics to the shaping of new energy sources or solid mineral substances, to the determination of the soil stability degree ...

Terotechnica is an interdisciplinary science that competes in the development of technical and technological documentation for: assembling, commissioning, maintenance, repair, upgrading new spare parts, worn-out parts repairs, organizing specific activities and effective feedback on systems industrial. It may be given the definition of maintenance technique. Terotechnica systems must be organized in such a way as to meet the intended purpose of maintaining functional parameters with minimal expenses and short-term...

Portable Gauss meters or Tesla meters are popular, simple and non-expensive magnetometers, capable of measuring the strength and direction of magnetic field, expressed by magnetic flux density and magnetic vector. Gauss meters work on base of cable connected solenoid gauss probe and registered difference of electric potential (Hall effect). Instruments are able to measure both the intensity and direction of magnetic field, usually being applied in the electronical industry or mechanics. Due to the increasing techn...

Low-altitude remote sensing technology applied with unmanned aerial vehicles (UAVs) has been recently adopted in Bulgaria. This study presents the optimal low-budget framework for a rapid high-resolution geomorphological mapping of a small part of the southern Bulgarian Black Sea coastal zone. A Quadcopter DJI Phantom 4 Pro was used to acquire the aerial images. These were post-processed using the structure-from-motion (SfM) approach. Ground control points (GCPs) surveyed with a GPS HiTarget V90 Plus were applied ...

Industry 4.0 demands new skill-intensive jobs, which mostly affects engineers? the driving force of innovation. However, it turns out that EU is not all well prepared to face that challenge. The situation varies ? countries like AT and DE have already introduced WBL (=Work based Learning) at tertiary level to produce industry-ready engineers while others suffer a high level of youth unemployment due to skills mismatch caused often by industry-irrelevant traditional academic education. Within e.g. the regions of Ga...

The article assesses non-carcinogenic health risk of the population of the city of Rostov-on-Don based on observation at fixed stations of the Federal Service for Hydrometeorology and Environmental Monitoring of the Russian Federation environment, in particular, according to the Rostov Center for Hydrometeorology and Environmental Monitoring (CGMS-R, Rostov-on-Don) for 2015- 2017. Analysis of the received information shows that nitrogen dioxide, carbon monoxide, formaldehyde are currently making the greatest contr...

Intensive development of the Arctic is the cause of degradation of the natural environment, including water resources. Water quality does not meet the requirements now ?n the Russian Arctic. This is the reason for the need to assess the sustainability of water resources in this region. This paper provides a brief overview of existing approaches and frameworks to assessing the sustainability of water resources. It is shown that a multidimensional approach to the sustainability assessment of water resources is curre...

According to statistical studies, a large number of IT projects end in failure. One of the rea-sons is the complexity of transferring the originally inherent meaning into the system. As you know, any project should be implemented and should be understood by the performer. According to researchers, the cause of the current situation is the inconsistency of the form (meaning) of the target system, which arises due to a misunderstanding between the actors involved in the development at different life cycle stages. Th...

Ensuring safety in a territory is one of the basics tasks public administration is engaged in. Safety for the residents living in a neighbourhood is an integral part of safety planning. Safety plans include measures for selected areas associated with risks that may appear in that area. The most significant documents for safety planning are emergency plans, crisis plans and all other related plans. Preparing a safety plan is very closely linked to area planning, which is generally separated into analytical planning...