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Multi-access Edge Computing (MEC) is a new information technology that brings Cloud capabilities into the Radio Access Network (RAN). The vicinity to end users allows applications with requirements for wide bandwidth and low latency. MEC services provide direct access to real-time radio network information which enables offering of context-related applications. The communication between MEC services and applications is based on Service Oriented Architecture (SOA). In this paper, an approach to definition of Applic...

The paper considers the problems that arise in the process of seeding in the production of sapphire single crystals by the method of Kyropoulos. This stage is the most important in the entire technological process, but at the same time the least automated. An approach is proposed for visualization of this stage, using technical vision. It is based on the processing of images received from the ip-camera. To observe the dynamics of growth and the crystallization front at the stage of seeding, we reviewed different a...

Wis?ouj?cie Fortress is a historical defensive object located on the southwest coast of the Gulf of Gda?sk. Fort Carre, Eastern Sconce and Ravelin are parts of this postmediaeval fortification. In view of planned regeneration of this fortification complex, at the initiative of the Gda?sk History Museum and Institute of Archaeology and Ethnology of the University of Gda?sk it was decided to perform a documentation of one Fortress object. Authors decided to report the three-dimensional documentation to perform a ser...

According to the geological maps of southern Spitsbergen, faults commonly run parallel to the glacier valleys' axis. General faults orientation is N-S and NNW-SSE. This may suggest, that the origin of glacier valleys is related to tectonics due to development of structural landforms on individual faults. The network of ground penetrating radar (GPR) profiles based on measurements on three glaciers of southern Spitsbergen: Recherchebreen, Hansbreen and Werenskioldbreen, was processed and interpreted for the presenc...

The article presents the exposure of forestry activities in the most deforested counties of Romania пїЅ Suceava County. We have conducted a local economic research based on the forestry activities from that county. The database used in this research consists from the National Classification of the Economic Activities, codes at 4-digit level for each territorial administrative unit. The article focuses on the particular situation from the deforested communes: CпїЅrlibaba, Poiana Stampei, Iacobeni. It also presents ...

Deposits located in the region from Ostrov up to Chodov are mainly known for their high quality deposits of kaolin non-metalliferous raw materials. Among others, the deposits contain a large amount of micas that are not used within production of kaolin concentrates. Within their structure, these micas can contain metals of alkaline soil - lithium, rubidium or cesium in particular. Due to new technologies, these metals get the greatest focus and their sources are being looked for all around the world. In the first ...

The aim of this paper is to propose an improved algorithm for estimating the risk of bankruptcy of the Bulgarian insurance companies. The algorithm is developed based on the multi-layers neural arhitecture with input dates represented by values of indicators from the financial statements of Bulgarian insurances companies. The memory of the neural network will provide informations about the risk of bankruptcy. Development of the neural model (algorithm R2b2n- risk bankruptcy of Bulgarian insurance companies with ne...

Testing and certification of explosion-proof electrical equipment required for product conformity assessment are extremely important, taking into account the unexpected hazard of explosion occurrence due to potentially explosive atmospheres generated by mixtures of air-gas/dust. The explosion risk has to be minimized in order to ensure the health and safety of people and for preventing material damages. The new European Directive which regulates the protection to explosion field is the ATEX Directive 2014/34/EU wh...

One of the fundamental problems in coal mining industry is inefficient use of machinery and equipment. It is therefore necessary to take measures to improve the situation. An innovative system to test components of mining machinery control hydraulics presented in the article may support the initiative. This system enables reliable and efficient testing of components of the control hydraulics. This has an essential and practical significance, since hydraulic systems are commonly applied by many industries, in parti...

Modelling of fine particulate matter (PM2.5) requires new approaches for the evaluation of populationпїЅs exposure and associated health effects in various urban microenvironments. Such decision support tools are assisting local authorities in adapting proper plans for minimizing the resulting ecological and epidemiological impacts. An environmental decision support system (EDSS) with web-based GIS capabilities was developed to allow for examination of PM2.5 fraction concentrations in Ploiesti city, Romania. The a...

An assessment of a market property value has been a subject of a debate among appraisers for many years. Some of them believe that the пїЅpowerпїЅ of statistics is so tremendous that in each situation an appraisal should be based on statistical methods. On the other hand, the other group off appraisers with a considerable experience, strongly support an actual expert assessment. For practitioners statistics is usually only an additional tool used rather to confirm a presented thesis. The dispute lasting for years ...

Since INSPIRE directive was published in 2007, many datasets became publicly available in interoperable way. This makes possible the developing of wide range of applications (including web and mobile) that use this information as data source. In this article authors test all for download available datasets registered in Latvian spatial metadata catalogue and describes the technical details such as the feature type, feature count in dataset, geometry type, default coordinate reference system, standard name and deri...

permanent concern of the researchers regarding the environment protection and the improvement of life quality in order to sustain the society development is orientated to viable solution for reducing the global warming. The main contributor to this negative phenomenon is represented by the carbon dioxide (CO2). This gas results in various processes, such as fossil fuels combustion or as a by-product from bio-hydrogen production. Also, the carbon dioxide is one of the main contaminants of natural gas and usually it...

This study outlines the solution to the problem caused by too large numbers of hiking tourists and skiers walking on top of the Kasprowy Wierch Mountain in the Tatra National Park, between three ski stations (one cable car and two chairlifts). Their choice of route is limited mostly due to a large difference in altitude between the top chairlift station on the Gasienicowa Glade and two other ski stations. To improve the conditions in the area of those ski stations a solution was sought that would permit an easy pa...

Nanomaterials have become so popular thanks to new and unique properties differing them from their classic counterparts. One of the nanomaterials which is commonly used nowadays is graphene and its derivatives. This paper demonstrates the results of laboratory-scale experimental works on the influence of ultra highly concentrated single-layer Graphene Oxide (HCGO) on properties of water based-mud (WBM). GO is a mono-layer of sp2-hybridized carbon atoms derivatized by a mixture of carboxyl, hydroxyl and epoxy funct...

Fish farming has a very long and rich tradition in the area of the Czech Republic. As the golden age of fish farming and building of fishponds, the second half of 15th century and whole 16th century are considered. In this period, huge number of fishponds was built in many parts of the Czech Republic. Many fishponds ceased to exist since this era but many of them remained until present. This means, besides others, that there are many fishponds within the Czech landscape which are very old. Some of them underwent r...

The paper aims at presenting oily water separators as one of the key components of complex lubrication systems used in seagoing vessels. Furthermore, the paper presents commonly used standardized connection flanges and pumps that may be considered a meaningful parameter in the evaluation of the efficiency of oily waste treatment systems in seagoing vessels. The objective of the current study was to discuss the working principles of selected oily water separators and to analyze their capacity, throughput as well as...

In the present work for the first time in the world practice 430322 occultations of stars by the Moon are analyzed. The relevance of the work is that the accuracy analysis of stars' proper motion in modern star catalogues can only be conducted using either observations of small planets or occultations, since only those observations are longterm and homogenous in time. When making the occultation database a comparative analysis has been used to study types and accuracy of occultation. For photoelectric observations...

The availability of the Baltic Sea for the largest container vessels is limited primarily to the depth of the Danish Straits. Ships with maximum dimensions of technical for shipping by the Danish Strait are called Baltimax. Currently, the theoretical size of the dimensions of the vessels are as follows: draught 15 m, width 42-48 m, length 240 пїЅ 260 m, capacity 100-120 thousand DWT. Therefore, the authors have analyzed the actual draught consumables container ships of the three largest companies in the world in t...

This paper analyzes the causes of groundwater breakthrough occurred during the excavation of deep pit in the central part of the city at the territory, which was being developed since the 14th century. Particular attention is paid to historical aspect of this area contamination and its impact on negative transformation of the underground space components such as soils, groundwater, gases, and microbiota. It is shown that the specificity of hydrodynamic and hydrochemical conditions has fundamental importance for as...

Changes of damage to the belt core that are not controlled during the exploitation can lead to dangerous accumulation of the defects (strains) in the cross cross-section. It can lead to serious weakness and even rupture of the belt. Early detection of the mic rodamage of the covers and evaluation of the increase speed of the damage allows the user to plan maintenance more precisely. Furthermore, it allows more effective cost management when conveyor belt maintenance is scheduled. In this paper, geometric data o f ...

The comfortable room environment and thermal comfort depends on internal factors and influences on the human organism. People are very sensitive to changes in indoor climate conditions. The body reacts feeling of thermal discomfort for some fluctuations. Thermal comfort is given by the air temperature and radiant heat, air velocity and relative humidity in the room. The main impact of these factors on the comfort level of individuals depends on the activity and type of clothing. Dantec ComfortSense system offers t...

Degraded post-mining areas have considerable potential for redevelopment. They are usually located in attractive urban areas and have convenient road and rail links to the rest of the city and other places in the region or country. These areas are often equipped with power, water and sewage systems. The redevelopment of these sites could take place in many different directions. They can be used to carry out production, service, commercial, residential and leisure activities. However, the unstabilized legal situati...

The overall objective of the project is to increase the energy efficiency in public Government buildings in Kosovo through implementation of energy efficiency and renewable energy measures in 140 (140 out of 369 total number of government building stock) public buildings in Kosovo. The updated European Energy efficiency directive sets the energy efficiency target of 30% for 2030 including measures to update the Directive and make sure the new target is met. All European countries have set their national policies a...

The urban structure of the old town quarter in Sandomierz belongs to the oldest and most interesting Polish architectural and archaeological sites. In this part of the town there are several objects written into the register of historical monuments. The location of the town on loess grounds, of a large thickness, has caused a lot of problems for the owners of real estates and the managers of technical infrastructure. This is the result of the characteristics of loess. Loess affected by external factors (rainfall) ...

The article deals with an innovative way to transfer heat for hot water. A device operating on this principle is called a heat pipe. This device works on the principle of phase change of the working fluid (heat transfer medium). The very principle of heat transfer is based on the theory of evaporation and condensation of the working fluid (heat transfer fluid). Heat pipes are classified according to the method of operation and location of use. A subdivision of heat pipe in terms of their actual use in the desired ...

Working in mining companies, which extract coal, is very difficult and dangerous. Miners carry out activities in a hostile environmental in which there are many natural and technical dangers. The accumulation of such unfavorable factors makes it necessary to take actions to appropriately prepare the workers to work in these conditions. These actions mainly include different kinds of trainings before and during the work. One of the goals of these trainings is to make the workers get to know the threats that occur i...

Conditions of the microclimate prevailing in mine workings are one of the most important factors influencing on the comfort and safety of the working mine crews. This climate depends on parameters of the ventilated air stream and conditions prevailing in these workings. Parameters having the most important influence on the conditions of microclimate are temperature of the air and rock mass, humidity, velocity of air stream and average temperature of radiation of wall surface of the working. Nowadays, due to the la...

In this study, object-based Land Use Land Cover (LULC) classification performance of Sentinel-2 image has been tested by comparing other medium resolution satellite dataset of Zonguldak test field. The test field covering a small area around Zonguldak is located in the Western Black Sea region of Turkey. It is noted for being one of the main coal mining areas in the world. For the purpose of the study, pan-sharpened Landsat 8 image was used because of its nearly similar ground sampling distance (GSD). The RGB and ...

This article defines the requirements for the architecture of the planned state satellite geodetic network, mathematical models (used in the processing of GPS measurements), navigation modules and analyses the possibility of integrating the high-precision geocentric coordinate system of the Republic of Kazakhstan with the global terrestrial system of the ITRS / ITRF. The main goal in solving problems of high-precision satellite geodesy is to determine the exact coordinates of the SGN point by processing code or ph...

The paper begins with the idea that in a large energy enterprise, formed by merging several energy companies with a mining company, the organizational culture is the key to success. The paper underlines the close connection between the organizational culture and the enterprise efficiency. The organizational culture supports the economic and social efficiency, the adaptability in the competitive context and the company which has a strong organizational culture may be saved from the consequences of unfavorable econo...

The pastoralism, with tradition in the history of the Romanian people, embraces various forms. In this viewpoint, the entrance with animals on pasture is linked to the Orthodox religious holiday, Saint George, celebrated on the 23rd of April. In the Romanian people tradition, too, the entrance with animals on the pasture is carried out in spring, after the flowering of the blackthorn (Prunus spinosa L.) present in protection belts or green fences that delimitate parcels in the studied area. Under such circumstance...

Constant economic development has an influence on the global emission of greenhouse gases. Having experienced natural disasters, e.g. floods and droughts, most of the highly developed countries became more conscious about their impact on the environment. In 2014, the global CO2 emission accompanying fuels combustion and industrial processes totaled to 35.669 billion tonnes, in that 298.131 million tonnes in Poland[15]. The counteracting climate changes in view, in March 2007 the European Parliament assumed an ener...

Satellite based global gravity field models represent EarthпїЅs long-wavelength static or time-variable gravity field. Their progress and development in the recent years has been induced by successful satellite missions, such as GOCE, GRACE and CHAMP and this will continue in the future missions. Resolution and agreement with quality terrestrial data are two attributes that indicate potential usability of each model. Maximum degree of spherical harmonics determines resolution of the satellite-based models. Agreeme...

Rosia Montana deposit is made up of several ore bodies; the natural factors are characteristics of each ore body. The deposit is accompanied by an extensive area of hydrothermal alteration, whose distribution has a complex character. Fast alteration and humidity were one of the factors that have been taken into account in order to achieve quarry. The quarry platform has reached at the level of the upper bottoms in the breccia area, which involves passing to the exploitation of the reserves included in these pillar...

Considering the prospects and possibilities offered by Global Navigation Satellite Systems, it is sure that they will be still developing and more widely used in other parts o everyday life. The aim of this study was to analyse how accuracy a defined position could be determined by using the Spirent 6300M simulator. The tests were carried out on the basis of the Ashtech GG24 receiver which is fully integrated with GPS and GLONASS systems. Thanks to this combination the measurements of the receiver are more reliabl...

The air is a mixture of different gases and particular matter, which make up for the earthпїЅs atmosphere. They allow for the existence of all life on the earth. With the increase in population and the progress of development, more and more substance of natural origin and on general not occurring in the nature, which may affect harmfully on the environment, gets into the air. Dusts and gases, flowing in excess into the atmosphere, cause local and even global pollution. Since the beginning of 2017 all the time in P...

The maritime territories play a significant environmental, economic, social, cultural and recreational role. It is therefore important to achieve a balanced, sustainable development to ensure equal opportunities for the population of all regions, bridging any gaps between the territories. Special attention is paid to developmental directions and opportunities of the maritime territories. The purpose of this research study is to identify the factors affecting development of the maritime territories of Latvia, perfo...

The moderate-size earthquake with local magnitude 5,7 which occurred on November 22, 2014 in Vrancea region, at 41 km depth, is the largest crustal event instrumentally recorded at the bending of the Eastern Carpathians. Using the method developed by [2] termed the Hash method, (incorporated in Seisan software) we obtain the focal mechanisms for earthquakes that occurred in Vrancea region associated with the seismic sequence of November 22, 2014. We have examined the main shock and 29 aftershocks that occurred aft...

Each building structure is rested on the foundation surface, so it is necessary to analyze these structures in interaction with subsoil. From the historical viewpoint, the most used is the Winkler model. Later two-parametric models of subsoil had been introduced, implementing the effect of shear forces and impact of subgrade around the foundation into the calculation. Other models are based on the theory of elastic half-space. The use of FEM introduced a lot of advantages to model structures in the interaction wit...

Grasslands, as specific components of the hill area from the West of Romania, belong, according to latitudinal and altitudinal zonation, to different vegetation zones, in concordance with the environmental conditions and implicitly with their own vegetal formations. Grassland classification in a certain vegetation zone offers very important information on biocenoses and biotopes, and also on its пїЅagronomicпїЅ characteristics (productivity, grazing capacity, maintenance, etc.). This study may be considered a theo...

The recent development of remote sensing technologies and rapidly accumulating environmental data derived from geographic information systems (GIS) now provide information on the patterns of terrestrial environmental variation at global and continental scales. Moreover, the past decades, an extraordinary amount of work has been undertaken to map species distributions and use the collected information to identify suitable habitats. Remote sensing metrics have become an integral part of SDM studies and contribute th...

One of the key trends in the sector of information and communication technology (ICT) is the Internet of Things (IoT). It allows the connection of two planes пїЅ the real and the virtual. This concept assumes that different devices and objects which use sensors can communicate with computers or exchange the collected data via the computer network. This can have a positive impact on the management of complaints, in particular those systems where applications are a manifestation of dissatisfaction internal customer....

Use of biomass for energy purposes is one of the viable priorities of the energy and forestry policies of the state. Given the expanse of forest in Slovakia include the forest biomass among one of the best renewable energy potential. It is used in the traditional way as it is burning, but also further processing of the products in the form of pellets or briquettes. Appropriate are also fast-growing trees. Currently, large amounts of available biomass are unused. These are mainly so-called biomass waste residues of...

With the current situation in world economy, rare earth elements are a valuable resource for many innovative technologies. Low supply of these elements and sparse mining sources concentrated in just a few countries caused REE to become a resource critical to the development of many high-tech branches of the industry. Although rare earth elements are widespread in the nature, due to their low concentration in most minerals, their processing based on flotation, gravity or magnetic separation of a concentrate is ofte...

In nature simultaneous manifestation of several processes takes place: diffusion and filtration of hydrocarbons, their emergence, overflows along tectonic fractures, etc. Other things being equal, the dispersion of gas accumulations occurs much faster than oil accumulation, due to greater mobility (migration ability) gases, better solubility in water, higher diffusion capacity, etc. All these natural processes that can lead to the redistribution or destruction of oil and gas accumulations take place mainly over a ...

The development of software (information systems in particular) is a time-consuming process. As statistical research shows more than half of the projects on the creation of information systems are not successful (there are some difficulties, or not implemented at all). All existing approaches consider the development of the system from the point of view of the objective concept, which represents the system as "a set of elements and relations between them." This leads to the problem of transition between the stages...

The article emphasizes that the important features of sustainable development in its multifaceted nature. It refers to a number of sciences, including economics (including logistics and transport), social and natural. The idea of sustainable development is integrated at the stage of planning, implementing and controlling infrastructure projects. The basic purpose of infrastructure projects is to balance the fundamental elements of the system that shape the future of the human society on earth: the environment, soc...

The paper deals with problem of analyzing the changes between the extent of the territory, which is affected by the release of ammonia from the stationary source and the changing atmospheric conditions in this territory. To determine the extent of threatened area the ALOHA program environment as a spatial decision support tool was applied. As a scenario the release of ammonia from the tank, i.e. tank wagon staying at the freight railway station in Zvolen. The results of the analyses confirmed the fact the atmosphe...

The development of modern technologies allows us to solve the problem of carrying out long-term measurements of velocity and temperature in lakes. The long-term local measurements of velocity have been conducted in Lake Shira (Khakassia) in the period 2014-2015.The velocity profile along the column of the liquid in Lake Shira occurs due to density summer stratification and wind. The horizontal velocities vary greatly in depth as well as in time. The principal component method has been performed to analyze the hori...