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Global climate change and resources depletion are the main reasons why it is necessary to constantly seek innovative approaches to the green economy. The 21st century economy should be a "green" economy, represented by repeated and sustainable use of resources. At the same time, the impact of environmental problems has an increasing impact on the economy or health and the quality of life of the population. In Slovakia, one of the biggest environmental problems is mainly the issue of waste management. While the mun...

During an earthquake, a strong ground motion arises not only in the focus, but it also extends over long distances. Strong motion data have to be used in the Earthquake Early Warning (EEW) for a quick response of rescue services and monitoring of building structures. As the speed of the waves propagation in the ground is sufficiently high (about a few km/s), the warning time must be little, but sufficient to alert the people. Structural and earthquake engineers can use strong motion data to verify or improve desig...

A great number of agricultural structures such as irrigation and drainage systems and anti-erosion facilities like bulk shafts, terraces, grassed run-off holding collectors, barrages, wind protection belts, etc. were put into operation during the last century in Bulgaria. The Agrarian Reform of the 1990-s posed unfavorable conditions for preservation and use of this valuable inheritance. Currently, small-sized, fragmented and scattered land use causes deterioration of land quality and infrastructure. The regulator...

The process of training on the training complexes depends on the realism of the user's interaction with the developed virtual world. Despite the implementation in recent years of many ways to manage virtual objects, the problem of realistic human movement remains relevant. The use of conventional treadmills is justified in the entertainment field. In the field of training of the personnel of ergatic systems it is necessary to model more precisely a relief of a surface on which the user moves. Therefore, in this ar...

Based on the exergetic analysis the paper analyses the conduct of a simple Linde cryogenic refrigeration cycle looking for its weaknesses and trying to find ways for operating or structural improvements. The exergetic analysis reveals that a major exergy destruction is due to heat transfer across a finite temperature difference in the recuperative heat exchanger. The optimization procedure points out that this exergy destruction reaches a minimum if the temperature difference between the high (hot) and low pressur...

The term smart growth is defined as developing an economy based on knowledge and innovations (EC, 2010). According to Eurostat (Eurostat regional yearbook 2014, Eurostat yearbook 2018, etc.), an expansion of the knowledge-based economy segment is observed in the European Union, which leads to a structural redeployment of the economy. Accordingly, growth in the knowledge-based economy segment becomes an important research problem in each EU Member State. The authors analysed this process in three Baltic States, pla...

The research was carried out in the ecosystems of sessile oak and beech within Vizantea forests of Experimental Forestry Base Vidra. There were located three plots of 1 ha each, where information on the biometric features of component trees was collected. The purpose of the research was to know the structure and functioning of the sessile oak and beech crops stands in the Curvature Carpathians, as a result of their current status, in the context of sustainable forest management and climate change over the last dec...

Urolithiasis is one of the most frequent urologic diseases and occurs in at least 1?3% of the population, and most often in people of working age (20?50 years old). This disease is characterized by the formation and progressive growth of pathogenic mineral formations - urological (urinary) stones in the abdominal system of the kidneys, their possible migration through the urinary tract, which leads to hemo - and urodynamic disorders, the emergence and progression of inflammatory, sclerotic complications. The recog...

Stand structural diversity, defined as the diversity of trees in stands, can be indicative of overall biodiversity and habitat suitability, useful in forecasting stand growth, and provide within stand detail for forest inventories. The diversity analysis provides more detail to the traditional stand structure descriptions and enables the approach to stand management more consistent not only with the timber production, but also with other productions and values of the multi-benefit forest stands, and/or transformat...

Were described a quartz-veins zones which localized within metamorphosed rock of South Muya block Northeast part of Western Transbaikalia. During the research was received structural and material characteristics quartz veins different orientation of the creeks an Otvesny, a Krivoy and a Bambukoy river. Based of kinematic analysis, crack paragenesis highlighted and genetic nature is determined structural deformations. Thus was found out that paragenesis of quartz veins which has been studied was educated as a resul...

The methodology ICZM is the modern approach to the realization of the concept of the sustainable development of marine regions. Modern geoinformation systems (GIS) are the optimal means for presentation of spatially distributed data on an electronic cartographic basis. Complex management of the coastal zone region can be organized on the bases of this data?s for analysis, monitoring and management of a marine health resort. The automated information systems of support and of decision-making are the basis for forma...

The oil fields of the Vereysky horizon (C2vr) are regional oil saturated on the Tatarstan Republic and located in the oil-and-gas-bearing Serpukhovsky-Vereysky basinal complex. In the sections are interbedding of various facial types of limestone with marls, clays, and sandstones. From below upwards along the section, the proportion of the clastic component increases and the carbonate component decreases. In the anticline structure, Vireysky oil-saturated reservoirs form multilayers series. Oil reservoirs are conf...

The paper considers the model of formation of students? environmental and legal competence; gives a comparative analysis of the three components of the environmental and legal competence: motivational and values-based, cognitive and activity-based components; identifies the four groups of students: preschoolers aged 5-6 years, primary school students aged 7-10 years, middle school students aged 11-14 years, and senior pupils aged 15-18 years.The results of the survey, testing before and after the introduction of t...

One of the properties of coal, used to evaluate the qualitative features of this mineral, is the microhardness of its particular components (macerals). Unfortunately, that parameter is relatively seldom used in analyses of this substance. Microhardness measurements are mostly used in research into metals, ceramics or composites; they are also sometimes used to analyse minerals and rocks. The objective of the paper presented here was to conduct coal's microhardness tests and to determine the relationship between st...

The article presents research on kinetics of sinter reduction used as a charge in the process of simultaneous smelting of zinc and lead, commonly known as Imperial Smelting Process. The aim of the study was to determine the effect of reductivity of various sinters produced from sulphide raw materials and from waste oxides on the operation of a shaft furnace. Real sinter samples from the sinter plant operating at the ISF furnace were collected for the experiment. The experiment was carried out in a resistance furna...

Urban forests play an important role in ecology of human habitats and provide various eco-services. Urban forests improve and maintain air and water quality, act as local refugia for plant and animal communities, hold populations of economically important species (such as pollinators), and act as recreational areas for people and pets. All urban forest organisms are directly or indirectly affected by human activities often leading to changes in biodiversity. The aim of our study was to determine soil microbial bio...

This paper presents the experimental results regarding the evolution into time of the road concrete quality with blast furnace slag BS, obtained by the UPV test for measuring the propagation velocity of the ultrasonic pulses compared with the compressive strengths of mechanical tests The UPV and the compressive strengths of the concrete containing blast furnace slag were determined at the age of 28, 100 and 150 days on 150 mm cubes on road concrete made with conventional materials and on road concrete with blast f...

Satellite images provide a large amount of data necessary for studies and applications related to fields like meteorology, agriculture, surveying, geodynamics, army etc. The complete data combined with complete software for satellite data processing allow us to create a powerful tool that can be used for taking decisions. Adding software that are able to combine different data coming from various areas, you can obtain an indestructible weapon that can provide you information regarding the environmental monitoring ...

Directional couplers are widely used in microstrip technology, but their dimensions are tied to the operating frequency. Since the smaller the frequency, the longer the longitudinal length of the quarter-wave segments and the greater the overall dimensions of the coupler. For this reason, use miniaturization, which allows to reduce the area occupied by the device on the substrate, with negligible loss in performance. In addition, there is an economy of the material used in the manufacture of the microstrip device....

In hydrosystem tailraces, behind end fixings of spillway facilities, scour basins of considerable depth and length are formed at high rates of the flow. This is associated with the violation of the extreme load mode during the construction and operation of hydrosystems, insufficient design length of fixings in tailraces, and inefficiency of installed baffles. Baffles based on soft water-filled shells are proposed as additional protection facilities of operating hydrosystem tailraces. The morphological analysis of ...

The article devotes to experimental study of briquetting of woodworking waste, such as sawdust and shredded bark. The aim of the work is to obtain regression dependencies linking characteristics of briquetted raw materials and parameters of moulding process with properties of produced fuel briquettes. Controlled factors of the experiment include moisture content of the raw material; average particle size of the material; percentage of sawdust and bark in the material; moulding pressure; moulding speed. The target ...

The methodology of obtaining the morphometric characteristics of large ice features by means of the improved technology of water thermal drilling with the drilling rate record to a logger is discussed in the article. Possibilities of diverse application of technology of thermal drilling (also for study of physical-mechanical ice properties) and perspectives of its development are shown. Peculiarities of data processing and analysis by the internal structure of ice ridges and stamukhas are considered. Specific char...

The aim of this work is to study the erosion and stability of rock cliffs. The selected sites are located in the Cuio and Kalohanda areas from the southern sector of the Baia-Farta municipality, on the coast of the Province of Benguela, central-western Angola. The fourteen studied sites are situated nearby fishing villages and present two distinct climate seasons: the rainy season and the dry season. The studied area presents a huge potential for economic activity related with tourism. The rock cliffs are mainly c...

A characteristic feature of fuel cells is a weak dependence of their energy efficiency on the scale of the installation and the ability to provide the required level of power by simply increasing the number of fuel cells. The use of fuel cells, including in combination with renewable energy sources, can mean a technological revolution in the transport sector and energy, will reduce the negative impact on the environment to a minimum level. In this paper, a review of the current state of problems and trends in the ...

The aim of the paper is to investigate the correlations between the parameters and mineralogy of agricultural soils contaminated by hazardous elements originated from the metallurgical industry. The mineralogical constituents of soil have a major influence on soil fertility and production capacity, as well as on migration and assimilation in various proportions of the elements both with nutritional role for plants and potential toxic ones. The importance of the study originates from the necessity of knowing the so...

The sustainable development of the economy of many countries is due to the stability of the oil and gas complex. Revenues of oil and gas companies form a significant part of the state budget revenues and the balance of payments. The government accumulates gold reserves by the seizure of windfall revenues of the oil companies in the period of high oil prices. In this article, we analyzed the development of the Russian oil and gas industry by the Substantial growth rate (SGR) model. In the study, the authors identif...

This article presents results of researches of genesis and physical and chemical properties of humic acids of peat stratigraphic rigging of the Ob-Irtysh interfluve, selected in the area of The Mukhrino Field Station of the UNESCO chair of Yugra State University. The coordinates of the selection: 60.89535 N?68.639033 E. Ash content of peat does not exceed 12%. The effect of botanical composition of the original plants of the peat-forming plants of peat type on the construction of the macromolecules of humic acids ...

Creation of food products with a predictable biopotential and consumer properties is an important and promising direction for the development of the food industry in the world. In this regard, the wheat germ cake is not used efficiently, which is mainly due to the low stability of their quality during storage. The initiator of the oxidative processes of the cake is a highly active lipase. We proposed the use of fumaric acid as an antioxidant and conducted research to study the effect of this inhibitor on the oxida...

In a laboratory model experiment, the effect of native pyrochars and modified pyrochars, from which labile organic matter were extracted, on substrate-induced respiration (SIR) was evaluated. Native samples of pyrochars were obtained from the remnants of linden wood at low-temperature (250°C), medium-temperature (450°C) and high-temperature (650°C) pyrolysis. Modified pyrochar samples were obtained by extracting labile fractions with cold water, boiling in hot water and treating with an alkaline solution of Na4P2O...

Particulate matter and heavy metals represent some of the most dangerous pollutants along with nitrogen and sulfur oxides and the persistent organic pollutants. They affect not only human health, but also all living things and, some of them, even the climate by light diffusion and/or greenhouse effect. Thus, PM2.5 can induce serious respiratory and cardiovascular diseases, while both PM2.5 and PM10 play an important role in the atmospheric chemical and physical processes. At their turn, even though some heavy meta...

Gypsum composites with different lightweight aggregates were studied. The importance of gypsum as one of the most environmentally friendly building binder increases nowadays and new ways of its utilization are searched. Using of aggregates in the gypsum is generally not necessary, because gypsum does not shrink, but they can be used for economic reasons or to improve the thermal or fire properties of the gypsum material. We studied the structure and properties of the gypsum composites with three types of lightweig...

The forest industry in the Russian Federation is actively developing. A large amount of material resources are invested in this industry. At the same time, technological and production equipment is being modernized, and the supply chains of forest products are optimized [1]. In the North-West Federal District of the Russian Federation in recent years, a large number of enterprises of the timber industry complex increase the volume of roundwood transportation by water transport, particularly in rafts [1,2]. To rece...

Study of the hydrogeological response to remote earthquakes is a separate scientific direction at the boundary of hydrogeology and geophysics. It?s necessary for understanding hydrogeomechanical processes occurring in fluid-saturated reservoirs. Spectral analysis is a convenient tool for estimation the relation between underground water level variations and ground displacement during passage of seismic waves from remote earthquakes. Water level variations can be classified as step-like, co-seismic and post-seismic...

The long-term response of aquatic vegetation of shallow freshwater ecosystems to the anthropogenic impacts (water level changes, pollution by heavy metals) was studied in 1999-2018 at two water bodies of Leningrad region, Russia: the Rakovye lakes and Neva bay of the Gulf of Finland, the Baltic Sea. The researches included the analysis of satellite images from 1970 to 2018, and the study of the characteristics of the aquatic plants of different ecological groups (halophytes, floating and submerged plants) -the spa...

The treatment of model solutions containing Fe(II), Mn(II) and Ce(III) salts in the range of metal ions concentrations of 20-500 mg/dm3 was carried out at the laboratory set of water purification by low-temperature plasma discharge during the registration of changes in the Red-Ox potential and pH of solutions, the ions concentration and the emission discharge spectrum. The ions concentration was measured by atomic absorption spectroscopy. The characteristic of discharge was measured with the methods of emission sp...

In this work, novel sorption material based on cellulose and polyvinyl alcohol cross-linked by calcium ions is obtained. In order to increase the oil capacity of the sorbent, the mineral glauconite, which has a natural sorption capacity concerning oil, was introduced into the cross-linked polymer matrix. The structure of the obtained polymer sorbent was studied: the method of infrared spectroscopy was used to study the effect of calcium chloride on the cross-linking of polymer components, optical microscopy was us...

This paper examines the level of vibrations transmitted to the crew on a river ship. This ship made a test cruise on the Danube, between Braila and Galati, round-trip (32Km). This cruise was done before the ship was repaired, to compare the levels of vibrations before and after the repairs and to check their efficiency. There were determined both the vibrations produced by the ship's equipment (engine, generator) and those to which crew members are subjected in the areas where they spend most of their time. To det...

In building materials, under reduced pressure, a significant improvement in thermal insulation properties occurs due to the elimination of conduction and flow through the gas phase filling the pore system of insulators (in case of the most insulators). This effect is used in the manufacture of vacuum insulating panels. In earlier times, vacuum insulating panels have only been produced with glass wool or SiO2 based insulators, but alternative insulating panels have also begun in recent years. These insulators are t...

Neurodegenerative diseases such as Alzheimer's and Parkinson's affect an increasing number of people. Their etiology is related to the formation of fibrils and protein aggregates. Therefore, new therapeutic strategies and compounds are required to prevent aggregation of ?-amyloid (A?) peptides. There are some neuropeptides that play an important role in the immune regulation, as well as in neuroprotection; therefore, they might be possible candidates for future drug development. Consequently, our experiments were ...

As a basic number, a genealogical line of Holstein-Friesian cows within SCDA Craiova was selected with common genes from the bull STARBUCK (Canada) brought by their grandchildren 51801 and 52150 via BESNE BUCK (France), 52506 and 52507 via SABBIONA BOOKIE USA) and the great grandchild 52569 via FATAL (USA); Genetic assays for production are based on 305 days of lactation production in the Maturity Equivalent (ME) of each cow. The dairy cows within SCDA Simnic are subject to official control of milk production. Thi...

This paper presents a study on deployment of policy based quality of service management at the mobile network edge. The requirements of fifth generation (5G) services for high bandwidth, low latency, reliability and availability can be fulfilled by Multi-access Edge Computing (MEC) former Mobile Edge Computing, which distributes cloud capabilities in the Radio Access Network. The paper studies the MEC potential for monitoring of accumulated usage of network resources based on data traffic volume on per session or ...

The analysis of reproductive performance in selected cows within SCDA Simnic Craiova, the obtention of the first generation and the exploration of the biological characteristics of the obtained youth, took into account the following breeding indices: calving interval (CI), determined as days between two consecutive parturitions; (SP) service period, determined as days from parturition to conception; number of inseminations per conception (NIC); Conception rate (RCv) determined as a percentage of fertilized insemin...

The paper is part of an important Scientific Research Project, VALINTEGR 2018-2020, in which some food supplements from the Cannabis Sativa and Helianthus tuberosus residues will develop. This study highlights the influence of some processing processes on the activity of some oxidoreductases from Canabis Sativa. The hemp seeds contain the daily needs of essential fatty acids: omega 6 and omega 3, which keep the clean of blood vessels and prevent cardiovascular disease. Also, hemp seeds contain 40% fat, 30% protein...

Vertical gardens are a new method for setting up inside or outside private or public buildings, providing a great aesthetic impact due to the impressive structure and the way it harmoniously combines architecture with nature, providing a balance between the two and, at the same time, modern. The purpose of this project is to embellish the facade of the BUASVMT building by introducing a novelty element that can offer a friendlier and more modern look to the edifice and a potential emblem of the university as plants...

Construction and subsequent operation of port complexes leads to increased anthropogenic load on coastal and marine areas. An effective compensatory measure for load reduction is the organization in the neighboring parts of the shores of protected nature areas. We present the study results of the impact of nature protected areas to stabilize the ecological situation in the anthropogenic transformed coastal zone on the example for the port of Bronka, commissioned in 2015. The objects of study are the territory of t...

In the study, heavy metal concentrations were determined from the Certej creek, basin in surface waters by using inductively coupled plasma emission spectrometry as an analytical method (ICP-OES). In order to assess the toxicity effects, the toxicity of various elements such as ( As, Cd, Cr, Cu, Pb, Ni, Zn etc.) were studied, these elements having an increased toxicity even at low concentrations. The purpose of this work is to determine their concentrations by the inductively coupled plasma emission spectrometry m...

The main objective of the research is to determine the problems of the temporary (non-final) cadastral maps (such as: some delimiting maps, details technical survey plans, and pen drawing maps), the influence of such unfinished plans on cadastral land parcels, and propose appropriate solutions to move to the final status. The study was conducted in the directorate of cadastral interests in the governorate of Tartous ? Syria, and how to implement the cadastral works[6]. It was found that the cadastral works in many...

Carrying capacity of heavy vehicles used for timber transportation tends to increase in the modern world. This tendency brings to an accelerated damage of the roads. The fleet of trucks used for timber transportation has become quite diverse. Modern vehicles differ from standard trucks in a number of characteristics, for example, weight. New vehicle features affect the strain-stress state of the road structure. This influence is taken into account in the process of calculation of total load equivalency factor. Loa...

In recent years, oppression and even death of Baikal sponges has been noted. To monitor the state of the sponges and find out the reasons for their death, as well as to optimize the cultivation conditions and develop natural remediation measures, it is extremely important to have adequate biotesting methods based on changes in the physiological reaction of the sponges under the influence of adverse factors, including under the influence of various classes of pollutants. In view of the extremely low growth rate, va...

This article discusses the modern condition of the archaeological monuments of the Predvolzhye of the Republic of Tatarstan. Fortified settlements as a manmade part of the cultural landscape, with the system of defensive fortifications, were selected as the objects of study, as they are easily identified by remote sensing data. In our view, the analysis of medieval Volga Bulgars (X-XIII centuries A.D.), the most common in the territory of the Republic of Tatarstan, has the highest priority. The main research metho...