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The transit gas pipeline in Slovakia was built in 1970s. The gas pipeline runs from Ukraine through the southern part of the entire Slovak Republic to Czech Republic. The transit pipeline is made of 5 lines with diameter of 1,220 m and 1,420 m. Terrain obstacles such as rivers and water courses are mastered by 16 pipeline bridgings. Currently the lifespan of many structural parts is expiring. According to the long-term partnership EUSTREAM (pipeline administrator) and Department of Steel and Timber structures, Fac...

Nowadays the great attention is paid to the cultivation of different mammalian cells. They can be used, for example, for vaccines, monoclonal antibodies or viruses production, in regenerative medicine, diagnostics, for clinical trials and etc. The application of modelling and simulation tools for these purposes is very convenient and perspective in order to decrease the experiments and therefore the total cost for the investigations. In this article, the process cultivation of CHO cells is considered in hollow-fib...

The problem of upper atmosphere and lower ionosphere response to anthropogenic greenhouse gases global increase is considered on the basis of the Institute of Numerical Mathematics of the Russian Academy of Sciences coupled atmosphere-ionosphere general circulation model (for altitudes 0-90 km). This model is a high-level numerically complex three-dimensional atmospheric circulation model (AGCM) and a part of the INM RAS climate model (INMCM), which has been developed in INM for more than 40 years and has taken pa...

The article deals with the types of facility management approaches to the management and maintenance of utilities. It addresses the basic kinds of management and maintenance of these buildings in relation to the valid legal regulations of the Czech Republic, and it also discusses the need to solve these problems mainly because of the wear of buildings due to time, mechanical damage and weather conditions. Neglect of timely maintenance and repairs reduces the utility value of the building, which is contrary to the ...

This study presents the role and significance of the land consolidation procedure in Poland, one of the six largest EU countries in terms of the surface area, and in Bulgaria. The consolidation traditions in Poland date back to the beginning of the last century and have been evolving along with dynamic social and technological changes. Currently, rural areas in Poland account for over 90% of the countryпїЅs area; therefore, it has been necessary for land consolidations to be transformed, over decades, into a multi...

Compacting is an important technological operation when forming of earth fills and backfills, where appropriate earth stabilization and in the construction of highways and roads in the compaction of bituminous and other surfaces too. Compaction is technologies that occurs at the building during construction time. It should be optimally compress all of the individual layers of the respective construction works. The works must be carried out as precisely and as economically with the smallest number of crossings comp...

In paper the gas analyzers of new generation constructed on the basis of semiconductor sensors are considered. Application of the semiconductor gas-sensitive elements allows to solve the main objective of the modern gas analysis пїЅ detection of vapors and gases of the wide list with high stability, the necessary selectivity and sensitivity. The semiconductor sensors allow to find substances in air in a broad range: from trace concentration 10-6 - 10-5 mg/m3 to high 500 - 800 mg/m3, owing to their developed struct...

Engineering novel material structures has continually been pursued to further advance modern technologies. These advancements often rely on novel processing technologies. Although many processing parameters have been thoroughly examined in the field of composition coatings, the formation processes are an exception. In this work, we examine the unique microstructures of composite electrolytic coatings, obtaining from electrolytes-suspension which contains nano-size particles of SiO2 and carbon. Metallographic resea...

Increasing the efficiency of the mechanization of the brown coal layers extraction requires updating the equipment from the technical endowment of the brown coal pits. The EsRc 1400?30/7?630 excavating machine with impeller represents the main tool from the endowment of the brown coal pits in our country. The cup runs displacement operation of the rock, its performance being found with the highest rate in labor productivity growth and reduce specific costs. It is realised, in this paper, with the help of the CAD/C...

According to the national laws and legislation, the pyrotechnician is the person who has expertise and is authorized to handle and/or use in Romania fireworks of category F2, F3, F4, pyrotechnic articles of category T2 and/or other pyrotechnic articles of category P2. Taking into account the inherent character of the risk specific to the pyrotechnic articles as well as the complexity of carrying out operations with these types of products, it requires acquiring thorough technical and practical updated knowledge to...

Predictions of catastrophic seismic events are extremely important. Such predictions are based on the continuous monitoring of many varying values characterizing the tension in the earth's crust. One of these indicators is micro oscillations in the Earth's crust, committed under the influence of the lunar-solar tidal forces. Devices for the registration of these oscillations are extremely complex, based on laser interferometric techniques. These devices converts length increment into according increment the phase ...

This article deals with the modification of the nozzle and its entire assembly with a hot end, so that it was not necessary to use a tephlon insertion and it was possible to reach the maximum temperatures of the nozzle reaching 280пїЅC and above. With the gradual development of 3D printing technology FDM (fused deposition modeling), i.e. the fritting of the thermoplastic in the shape of the fibres and putting it into the layers, more demands are placed on the materials used. Materials with a greater temperature of...

Development of high strength concrete has been continuous over the years, its production becoming available at competitive prices to the construction industry, thus moving away from being a novelty product. Although high-strength concrete properties have been widely studied for nearly 100 years, currently available design standards for concrete structures contain stipulations based on research conducted on concrete with lower grades than those available today. The modulus of elasticity is a very important mechanic...

Sediments are usually regarded as the ultimate sink for heavy metals discharged into environment, and can be sensitive indicators for monitoring contaminants in aquatic environments. Therefore, the environmental problem of sediment pollution by heavy metals has received increasing attention in the last few decades in both developing and developed countries through the world. Environmental risk assessments, including sediment monitoring, are typical tools for supporting decision making in the regulatory context, an...

The paper presents a system monitoring operational safety of structures used in civil engineering. The system is based on the fibre Bragg grating (FBG) sensors or sensors using the optical time domain reflectometry (OTDR) technology. The essence of the solution is to introduce FBG sensors into the structure to make them act as its пїЅnervous systemпїЅ. The system may be implemented in existing civil engineering structures made of steel, concrete, reinforced concrete, as well as in shells and new structures at the ...

Modern prefabricated buildings, constructed according to the innovative Polytech technology are to be energy-saving and enable quick completion of the investment project. The new construction method uses load-bearing and, at the same time insulating, elements in the form of prefabricated panels made from the modified Polytech mortar. However, until today, the detailed data regarding the strength and deformability of important Polytech elements have not been verified. The new Polytech system has not been investigat...

The paper presents a system for monitoring of operational safety of ferromagnetic structures used in civil engineering, machine construction and power engineering. The system is based on sensors of the residual magnetic field (RMFM) distribution. A change in values of individual components of the residual magnetic field informs in advance about the appearance of areas with a raised level of stresses or stress concentration zones and identifies micro cracks. The paper presents numerous examples of identification of...

This study investigated the degree of heavy metal accumulation in fruits, leaf, shoots and associated potential health risks in agricultural areas of the Mitrovica city, northern Kosova. Total concentrations of lead (Pb), cadmium (Cd), nickel (Ni), arsenic (As), zinc (Zn), copper (Cu), chromium (Cr) and iron (Fe) were determined in soil and fruits, leaf, shoots apple tree with rootstock MM106. Samples collected from agricultural areas (near Mitrovica city), have been analyzed for heavy metals (Pb, Cd, Ni, As, Zn, ...

First part of the paper presents the monitoring project of Turdas tunnel with the detailing of the monitoring equipment. Building of Turdas tunnel was realized for ensuring the maximum speed of 160km/h for passenger trains. In order to build the tunnel was provided a provisional support and a final support, due to difficult field conditions, obtained from the geotechnical studies, because of the presence of the swelling soil. To achieve safe construction of the tunnel were mounted specific monitoring equipment in ...

For the bridges under rehabilitation, especially for cable stay and suspended structures, situations that can lead to the increase of strain in the structure may occur during construction works. Because of that, monitoring the way the bridges behave during works becomes necessary. Monitoring them during rehabilitation under traffic is essential, because alarms are triggered when accidental actions take place or when certain strain values are exceeded. The bridge on DN39 over the Danube пїЅ Black See channel in Agi...

Protected areas have been created to limit or remove the man and nature harmful intervention on the existing flora and fauna. The research work has been focused on a protected area from Dobrogea, where there is an acute need for intervention, in order to save the existing rare species of plants. A permanent monitoring of the evolution of these species and other floral species must be done permanently, to see the effect of invasive species on rare ones. Effective monitoring of the studied area has been carried out ...

In the paper underground monitoring measurement system for continuous measurement of load changes in instrumented rockbolts was presented. The use of anchor casings creates an effective method of protecting underground mine excavations in KGHM Polska Mied? S.A. mines. Foundation for technical assumptions of original monitoring method was trial measurement period carried out in two underground copper mines of KGHM Polska Mied? S.A. between 2005 and 2008. The main aim was to receive interaction between load variatio...

In old times, hydrotechnical constructions, mostly dams were built for the single purpose of water supply or irrigation. As civilizations developed, there was a greater need for water supply, irrigation, flood control, navigation, water quality, sediment control and energy. Demand for water is steadily increasing throughout the world. There is no life on earth without water, our most important resource apart from air and land. During the past three centuries, the amount of water withdrawn from freshwater resources...

This paper presents a case study regarding the GIS applications on the slopes with frequent erosion processes in depth. Monitoring the gullies consists in identifying them in the land, their positioning on the map, their classification and recording according to several indicators and following their evolution in time. The study is carried out in a water catchment area of 4,665 ha in Berheci Superior, Bacau county, Romania. By using ortophoplanes, satellite images or air-photograms (in some cases) and the document...

Conductive polymer composites due to their unique properties and potential in various applications including chemical and bio sensors are receiving much research attention in recent times. The study investigate the effect of increasing polymer concentration and the influence of mixing time on morphology and electrical conductivity were. A highly conducting nanofiller and reduced graphene oxide (RGO) was incorporated into the matrix of expanded polystyrene; a recycled polymer, and the solution was electrospun under...

Many sports facilities were constructed in the Sochi area prior to Winter Olympics, 2014. We contributed to this by conducting the research of geological risks on the northern slopes of Aibga Ridge пїЅ the place allocated for construction of mountain skiing tracks. Initial data of the study comprised digital topographic model, field findings, and remote sensing data. All these were organized by using the instruments of MapInfo Geographic Information System (GIS). The research was based on the system-morphological ...

Numerous space agencies and powers have announced their plans on lunar exploration for the next years. The main purposes are preparation and creation of long-term scientific, technological, experimental, and industrial bases on the near side of the Moon and in the areas of the lunar poles for conducting scientific experiments and investigating lunar bowels. The American space agency (NASA) has published the most detailed for today map of the lunar South Pole. The new data has been collected by the пїЅLunar Reconna...

In this paper we have developed a set of multi-parametric data analysis programs, which can be used in hydrogeological studies. Considering that in these studies we use large sets of multi-parametric data with spatial and temporal distribution we focused on the analysis with polynomial tendencies surfaces and hypersurfaces, analysis by moving average with different dimensions of windows and analysis of the variance of the correlation factor with mobile window. The first part of the paper is dedicated to the descri...

Heavy metal contamination of soils is a long-standing environmental problem in the world due to the increase of anthropogenic impact on landscapes. The proposed paper is the first step of an integrated ecological and geochemical investigation of soil cover of the Baikal region. Study object is the biggest island of the Lake Baikal named Olkhon, which is a part of the Baikal National Park, Russia. The study was performed by the key-site method. The method is based on the revealing an index plot, which characterizes...

This paper presents the research on the sedimentation process assisted with coagulation process. The main purpose of this project is to determine the method of coagulant dose selection during the sedimentation of the coal suspension. Measurements have been made for various sedimentation intensification techniques: the use of coagulant, the use of lamella, and the use of both techniques simultaneously. The efficiency of the sedimentation process was compared using various intensification techniques. The studies wer...

TV measurement monitoring and diagnosis of the state of heterogeneous biological media can be carried out on the basis of processing the array of multispectral images of the object obtained by the CCD camera at characteristic wavelengths. The biophysical and structural parameters of inhomogeneous biological media of different origin influence their spectral characteristics, in particular, the coefficient of diffuse reflection. The aim of the work is to increase the reliability of monitoring of natural biological m...

There are summarized findings from research-and-development (R&D) study of environmental communication (EC) development in Liepaja town municipality, based on case studies research methodics following applications during 2006пїЅ2015, and, summarizing, all stakeholders semi-structured interviews conducted in 2016. Liepaja is one of the most active pro-environmentally oriented municipalities in Latvia, where the complete collaboration communication model approach of all four EC complementary instruments has been int...

Quantitative supervision of the implementation of planning documents is one of the fundamental elements of good governance and is vital for ensuring sustainable development perspective. The sustainability of a territory may be specifically defined in developmental planning documents as a long-term goal or indirectly emanate from the territorial vision and set of defined measurable objectives. The most effective way to supervise progress towards planned objectives is with the help of the relevant indicator system (...

The development of modern technology affects all spheres of life. The use of such advanced technologies in urban management of individual processes and services is a concept of smart cities. The use of these innovative means leads to the efficient functioning of cities, reduce costs and often improve the quality of life of residents. Smart cities are a concept aimed at introducing information and communication technologies and tools for the effective management of sites and integrating citizens into his work. Smar...

The recent demands regarding energy efficiency of buildings across the European Union, namely the nZEB concept, impose among other improvements, the thermal behavior optimization of building components that define the building envelope. In order to achieve the imposed nZEB criteria, conventional thermal insulations with increased thickness have to be used, which is inconvenient in several cases. The paper presents an alternative solution, given by Nano insulation materials, such as aerogel and vacuum insulation pa...

The importance of wastewater treatment is growing rapidly with the populationпїЅs need of access to pure water and industrial process water. Different wastewater treatment technologies are available worldwide but the membrane treatment technology has earned popularity in the last decades because of cost/efficiency reasons. Polymeric membranes lead the market in membrane manufacture because they are very competitive in performance and economics. Polysulfone is one of the most used membrane material and has advantag...

The mining industry is often faced with great difficulty in drilling deeper and deeper holes in the search for oil and gas. This results in constantly increasing costs and the continuing need to create better materials and technologies to reduce possible losses. Drilling technology must cope with high temperatures and pressures in the hole and other unfriendly environmental conditions. Increasing demands on the properties of the slurry and cement stone force the search for unconventional solutions and materials th...

Nanostructured black silicon wafers were obtained in a two-stage process of selective chemical etching initiated by metal nanoclusters. The obtained silicon wafer surfaces demonstrate the reflectance of 2-3% in the visible range. Surface-enhanced Raman scattering (SERS) effect was observed on silicon substrates coated with silver or cooper nanoclusters. Test substance of Rhodamine can be detected up to concentration of ~10- 12 ? by using nanostructured silicon substrates covered with silver nanoparticles. Dependen...

The results of microstructure study, X-ray microanalysis, microhardness, porosity of sintered samples from a powder high-speed steel before and after hardening by the wave intensive plastic deformation are presented. It has been established that the basic elements in the composition of sintered samples from tungsten powders are C, O, Mo, Ca, V, Cr, Fe, W. Based on the analysis of the sintered samples microstructure, it was determined that the there is a uniform distribution of solid carbide in the base material vo...

In the placers of the south-eastern boundary of the Lyapin megaanticlinorium at the Subpolar Urals for the first time the relation of native gold with bismuth and telluride minerals was reliably established. The placer area is located within the Lower Proterozoic and Riphean metamorphic rocks. Directly in the placers Bi-tellurosulphides, tellurides and sulphosalts (tetradimite, joseite-B, joseite-A, tsumoite, hedleyite, cosalite), native bismuth, native silver, maldonite are determined together with gold in large ...

Proper estimation of geomechanical parameters of the shale gas reservoir has a crucial influence on the stimulation treatments designing and therefore on hydrocarbon production from unconventional reservoir. The brittleness is the most commonly used parameter for locating the geomechanical hotspots in the reservoir. This parameter can be estimated using elastic, dynamic rock properties such as Poisson Ratio and Young Modulus obtained from sonic logs. The seismic waves velocities recorded by the sonic logging tool ...

It is well known that the Russian North is rich in hydrocarbon resources, and oil production there requires long transporting pipelines. We studied geological and other natural risks associated with the project of construction of oil pipeline from South Bagan field, Komi Republic. To evaluate the risks we put into geographic information system (GIS) topographic maps as well as drilling data, remote sensing and own field survey materials. It is the system-morphological approach by A. Lastochkin that was used as a m...

The processes of nanogold deposition and concentration in the environment, which have been occurring with enlargement of metal grain size, may be considered as the natural nanotechnologies. The mechanisms of nanogold concentrations in geological objects are established and described on the example of many deposits in Russia (the Urals, Siberia) and abroad (Canada). They produce different morphological and chemical aggregations of gold nanoparticles. Among them variable growths on the placer metal surface, globular...

The paper presents three natural reserves in Romania: Dumbrava Vad nature reserve known as the Daffodil Meadow - Brasov County, is considered the largest reserve of this kind in Europe. Daffodil Meadow Negrileasa пїЅ Alba Country and Daffodil Meadow Negra?i - Arges County. For accomplishing the objectives of this paper were been created maps using Program ArcMap 10.1. The maps play a role to present the characteristics of the area in terms of geomorphology. The aim maps is to present this natural reserves in terms...

Risk assessment includes quantitative estimation of damage to a linear engineering structure by exogenous geological processes. Remote sensing data processing using the mathematical morphology of landscape seems to be a promising approach of exogenous hazard risk assessment for linear structures, this issue is examined taking thermokarst plains as an example. The mathematical models of landscape morphological patterns for thermokarst lacustrine plains and thermokarst plains with fluvial erosion is a base of the su...

The present study aims an integrated risk analysis of existing or potential natural constituting a direct or indirect threat on the analyzed geographical area. These regularly processes cause lately extreme and significant disturbances in the primary and significant damage system components in various fields of economic and social life. With an inventory of all these dangerous phenomena may be proposed at local government levels, a series of joint measures on mitigation and combating the effects induced by natural...

Nazca lines in Peru are well known for their geometric precision and ancient images. It is assumed that these lines were created by ancient Nazca civilization almost 2,000 years ago, mainly motivated by religious considerations. Satellite images and publicly available images from airplanes and air balloons were studies, as well as on-site observations performed. The orientation, interconnectedness and quality of geoglyphs were evaluated. The results suggest that only a small portion of geoglyphs may indeed be very...

Within the framework of this study, the subject and object of the study has been determined, problem, goals and objectives have been formulated, and the following results, which have signs of scientific novelty, have been achieved. The notion of NBIC information space is introduced, the content of NBIC clusters is disclosed. The concept of convergence of information spaces was introduced and its role in the characterized process of NBIC convergence was shown. The synergetic effect of the transformation of the info...

One of the main objectives in real-time assessment of seismic hazard is the development of algorithms for rapid estimation of the seismic source parameters (fault planes solutions). The objective of this work is to test and implement new methodologies in the National Institute for Earth Physics (NIEP) for near real time estimation of fault planes solutions taking the advantage of the spatial density of the Seismic Network in seismically active zones ( 120 seismic stations used in real time) and the full range of t...

Network methods were used for the first time to plan and control maintenance works on a chemical apparatus installation in the United States in 1956. These were simple methods improving project management. The development of the network structures would not have been possible without the technological progress which has been taking place over the last half a century. Complicated networks can be programmed during a short period of time thanks to high computing power. Network models can be currently used for the sim...