Browse

It is generally accepted that organic agriculture as a production system is aimed at the health of soils, ecosystems and people. Such land use and management combines experience, innovation and science to improve the environment, ensure a high standard of living and achieve the goal of sustainable development. It should be recognized that there are different approaches to the future of organic farming among scientists and practitioners. Some experts say that in modern economic and demographic conditions, organic a...

In the context of global climate change, increased anthropogenic pressure, the discomfort of urban areas due to air pollution by vehicles and industrial enterprise emissions, landscaping of urban areas is of particular importance. Green spaces in ecosystems perform several environmental functions. Their key functions are sanitary-hygienic, recreational, artistic, and decorative. The sanitary-hygienic function of the woody and herbaceous plants system of the urbanized territories in the south of Ukraine is air puri...

The main purpose in mineral processing plant is to obtain the highest possible value from a processed raw material. In majority of concentrators in the world mining the first step of the processing technology is sieving of ore that is performed using vibrating screens. Usually, in the whole technological system there are only several such machines. That is why their continuous operation is critical and they are often concerned as a bottleneck of the whole system. Although the vibrating screens are expected to keep...

One of the most common areas of wood use is the creation of composite materials based on it. Moreover, active research on preliminary heat treatment of wood filler in the production of various composites has been carried out in recent years. This is due to the fact that heat treatment of wood is an environmentally friendly method that allows changing its color and performance properties, as well as reduce various negative factors: the impact of fungi and other biological organisms, shrinkage and warping in conditi...

The article examines the paleogeographic conditions of rock formation of the Alakol depression from the Baikol era of the end of the Proterozoic in order to determine the most favorable deposits for oil and gas source properties, where to the north and south of the Alakol depression there were marine sedimentation conditions with the accumulation of deposits up to 1000m. it was found that in the Early Cambrian time, a contract relief developed east of the depression. In the Ordovician, sediments accumulate under m...

The idea of the Hercynian Paleozoic age of the Turanian platform foundation is widespread among geologists, giving way to an opinion of its having no prospects for oil and gas. New seismic and geological data obtained in the south of the Turanian platform, within the South Mangyshlak downfold system in Kazakhstan and the Asseke-audan trough in Uzbekistan, support the authors? idea on a new Paleozoic floor promising oil and gas in this area. Results of the analysis and comparison of the well sections prove the regi...

It is well known that the process of inference is generally non-deterministic. Therefore, to develop effective inference algorithms, the problem of managing the inference search is very relevant. The solution to this problem is complicated by the fact that the predicate calculus is unsolvable. There is no method for establishing general validity or its absence for an arbitrary formula for calculating predicates. Nevertheless, if the formula for calculating predicates is valid, then there is a procedure for establi...

This work considers the study of libration dynamics of the planets? moons. To analysis such processes, it is necessary to use methods for investigating complex systems, as an influence from neighboring celestial bodies on spin-orbital motion of a moon should be taken into account. This fully applies to the Moon?s rotation about its axis. The construction of modern theories of the physical libration of the Moon (PLM) is based on gravimetric, seismic, satellite observations, and lunar laser ranging, which in its tur...

The authors have conducted an experiment that involved modeling of interactions between immune regulation mechanisms applying a viral load simulator in vitro. The experiment was performed on a suspension that contained immune cells extracted from peripheral blood samples (68 samples overall). There were several influencing factors such as impacts exerted by managing elements including cytokines (IL-1), hydrocortisone, and exogenous environmental factors represented by aluminum compounds (aluminum oxide) as well as...

When designing buildings and structures in landslide hazardous areas, the development of techno-economically effective landslide structures is often necessary. This requires a deep analysis of engineering-geological and engineering-hydrological surveys, as well as the identification of the nature of the landslide (its structure, type and depth). The article discusses the design features of engineering landslide protection of the building of the sanatorium and sports grounds, as well as access roads to them located...

To address the global energy problem, energy from the solar source remains the most encouraging solution for buildings with a difficult-to-achieve goal such as achieving zero net energy consumption. In a solar thermal system, integrated solar collectors in buildings can convert the absorbed solar energy into thermal energy and can be better exploited in an area of the facade, while acting as an integral component of the building envelope, with good sun exposure. The aesthetic character and functionality of this te...

Upper Paleozoic carbonate-terrigenous deposits are widespread in the southwestern part of South Kazakhstan: in the Syr Darya, Aral, Chu-Sarysu and South Torgai sedimentary basins Karatau mountains, the Ugam ridge, as well as in the adjacent territories of Uzbekistan. Their capacity reaches 4000 m. At the end of the Middle Devonian, the western edge of the Kazakhstan continent sank, which led to transgression of the sea and the formation of a basin of forward deflection. On the outskirts of the latter, carbonate pl...

Taking into consideration limited financing of waste processing industry in Russia, refuse derived fuel production is becoming a promising course to decrease MSW landfilling at minimum cost, as the method allows safe energy recovery in existing cement kilns and precalciners. For its part, the cement industry pursues a lower level of fuel expenditure, which accounts for about 20% of total production cost. In this regard, fossil fuel substitution for fuel from waste is a mutually beneficial solution, linking the int...

The dike rocks under study are localized in Mesozoic (T3-J2) clastic rocks in the western part of Verkhoyansk-Kolyma fold area. Studying the nature of the dikes and geodynamic setting of their formation is of great interest now in view of the controversy surrounding their assignment to definite magmatic complexes of the Verkhoyansk-Kolyma fold area and the uncertain origin of mineralization in the Yana-Kolyma gold belt. Major elements were determined using the silicate analysis of magmatic rocks. The mineral compo...

In the portuguese section of the Central Iberian Zone, the Guimaraes region hosts a wide diversity of plutonic variscan lithologies including biotite-rich granitoids and vaugnerites. Vaugnerite outcrops occur as small bodies, typically enclosed by the main regional granite (the coarse-grained, biotite-rich, porphyritic Guimaraes and Santo Tirso monzogranite). Mafic enclaves of vaugnerites can also be identified in the host granite. The granitoids are peraluminous (ASI = 1.10 ? 1.15), having crystallized from melts...

Petromagnetic properties of soils were studied in the territory of Khlebnovsky oil field (Saratov region, Russian Federation). Magnetic susceptibility was measured at low (?lf) and high (?hf) frequencies in soils before and after heating up to 500°C including the frequency dependence of magnetic susceptibility (?fd) and the thermomagnetic coefficient (d?). It was observed that in the studied soils, ?lf varied from 3.05?10-7 m3/kg to 1.56?10-6 m3/kg with an average value of 5.54?10-7 m3/kg; ?hf - from 2.84?10-7 m3 ...

This paper presents the results of a study of a model site of the settlement Ksizovo-1 (XXIV-XXIII centuries BC) in the forest-steppe zone. The research object is located in the Lipetsk region on the floodplain terrace of the left bank of the river Snova, right tributary of the Don River. The aim of the study was to assess the variation of chemical and enzymatic characteristics of the cultural layers of the settlement in the profile and in the plan over the entire area of the excavation. During the excavations, so...

Symbiotic nitrogen fixation is the most environmentally friendly method for the accumulation of biologically bound nitrogen. Nitrogen fixation is carried out by bacteria, including from the class of ?-proteobacteria. Global climate changes lead to an increase of agricultural areas subjected to salinity. Current knowledge about the effect of high-salt stress on nitrogen-fixing symbiotic ?-proteobacteria has the appearance of a puzzle. The genetic mechanisms determining salt tolerance have been studied in the most d...

The lack of field studies outcome on ancient wineries and land plots under vineyards in the Kerch Peninsula puts on agenda a higher demand for new data, which is essential for understanding viticulture development of the European Bosporus throughout 4th c. BC ? 3rd ?. AD. The geoarchaeological approach, with the involvement of the natural sciences resources (pedology, geochemistry, palaeobotany), was used to study the soil within the archaeological complex (10 km west of Pantikapaion (modern Kerch)) dated 4th ? 3r...

The world modernization, global development, maximum utilization of minerals and ruthless treatment of the environment by humans have created many environmental problems around the world, and Georgia is no exception. One of the richest deposits in Georgia are in Bolnisi, where the RMG (formerly Madneuli) mine is functioning, located in Kazreti, on the right bank of the Mashavera River. Open-pit mining processes causes soil and water contamination, which do harms to human health and ecosystem. Remediation projects ...

The expense of restoring of excavators cutting bodies is increasing these days in the Most Basin area, primarily the replacement of tooth because of abrasion expense. The main reason is the complicated geological situation of overburden rocks, first of all the occurrence of sands and hard structures in the overburden cuts rocks in the deep horizons of open pit mines. The main target of this article is the brief description of realised research. It is design of the optimum methodology of bucket tooth cutting body h...

Large territories in many countries of the world are occupied by tailings after placer gold excavation, including Russia (the Urals, Altai, Yakutia, Chukotka, etc.). The technologies of gold excavation for placers were intended for extraction of the most wide-spread gold grains. As a result, small gold particles were often removed in tailings. Long period of staying of fine gold particles in tailings has been accompanying the process of ?new? metal (secondary gold) origin. Detailed investigations of ?new? gold (gr...

The research topic is about to planning geopark in Racha-Lechkhumi Kvemo Svanei region, specifically in Racha region In Georgia, Caucasus. There is no one category of protected areas in Racha region. Geopark is a new category of protected areas which will be a novelty in Georgia and the whole of the Caucasus. In the case of planning the geopark, in the region would develop geotourism. In today's developed countries, Geotourism and geoparks as novel strategies for socio?economic development in rural areas. Geopark ...

The idea of sustainable land use constantly develops. The technical level of agricultural machinery is constantly improving. The latter is a part of modern technology in agriculture that has an impact on soil fertility and land quality. Soil quality depends on the integrated impact of topography, land use method, and the agricultural practices applied. The wind and water erosion and the other soil degradation processes caused by man's physical interference are due to the chaotic land use and improper dispositionin...

The rapid development and industrialization in recent years have posed a great challenge to the environment and air quality due to the increased anthropogenic emissions of particulate matter. Both PM2.5 and PM10 (particulates with aerodynamic diameters equal or less than 2.5 and 10 ?m, respectively) have become the forefront focus due to their adverse effect on human health and climate. Therefore, the assessment of chemical composition of PM2.5 and PM10 defining in general their toxicity and its correlation with m...

The polar geocosmophysical observatory is located in the Arctic zone of Russia in Tixie Bay with the following geographical coordinates: the latitude is 71.60 ° N, the longitude is 128.90 ° E. The first optical observations began in 1957. At present the continuous geophysical measurements of variations of the Earth?s magnetic field, auroral absorption of radio waves, ionosphere features, very low-frequency electromagnetic radio emissions, optical glow of the night sky and aurorae as well as cosmic ray intensities ...

Floods are one of the most frequent natural disasters in Slovakia. The suggestions of flood protection measures were already taken by our ancestors many centuries ago. During the recent years, the attention of public and professionals, as a result of floods in Slovakia, is markedly focused on the possibilities for effective protection against the harmful effects of this negative natural phenomenon. One of the flood protection measures to protect towns and villages, or other important buildings, is a realization of...

Introduction. Arsenic is one of the most toxic elements, discovered on the Earth, and poses a very serious threat to human health and life. Aim of the work ? assessment of risk to the population health of the natural area in the eastern part of Russia, caused by the use of drinking water containing arsenic. Materials and Methods. The population of one of the provinces of Eastern Siberia, characterized by an increased content of arsenic in water (147 people) was examined. Examination included: determination of As c...

The implementation of a competence-based approach in higher education suggests the reinforcement of personality-oriented education, the use of technologies that demonstrate the personal growth of the student, and the formation of professionalism. For this purpose, traditional teaching methods are complemented by innovative ones that create conditions for student activity, putting him in a situation of free choice and decision making. The article focuses on the training portfolios technology application in the educ...

An actual problematic question in geography didactic, directly related to the quality and effectiveness of training, is that of the methodological principles. They are defined as the regulatory basic rules and criteria adopted in the practice, the compliance of which determines the optimal organization and effective implementation of the geography training process. The system of principles is open and dynamic. The principles themselves are not independent and isolated from one another, but interact. Principles are...

The cement industry, along with metallurgy, electric power, chemistry, and mechanical engineering, determines the economic potential and level of industrial development of any country. The role of cement in modern construction is very large, at the moment it cannot be replaced by anything equivalent. At the same time, cement production is extremely resource-and energy consumption industry, and its production accompanied by a large amount of greenhouse gases. According to forecasts of scientists, emissions of carbo...

The trend of improving the properties of the used materials also extends to the field of road construction. The research focuses on materials and technologies that immediately improve several properties of asphalt mixtures and at the same time reduce the energy requirements during the production, laying and compaction of asphalt mixtures. When comparing the energy consumption consumed in the production of one t of a mixture (HMA, WMA), it is possible to save at least 15 % of costs and CO2eq emissions [kg/t] up to ...

The ability of a moving charge to create a vortex magnetic field around itself is well known. This phenomenon formed the basis for the creation of electromagnets. The reverse process is electromagnetic induction, when a magnet moving with acceleration becomes a source of electric current in a closed conducting circuit. In this regard, ferromagnetic fluids are of some interest. Ferromagnetic fluid is an aggregatively stable colloidal system consisting of nanosized particles of a dispersed phase uniformly distribute...

In recent years, the world has been plagued by a large number of emergencies that have an impact not only on the population, but also on health, property and the environment. One of the basic tasks performed by the public administration is to ensure the safety and protection of the population through various tools. One of the tools is, for example, safety planning. With the help of safety plans, it is possible to achieve the application of appropriate measures that help deal with emergencies or crisis situations a...

The inter-element relationship between the studied toxic metals shows that heavy metals can also have the same anthropogenic origin, regardless of their sources of origin. The results of the pollution index indicate a moder-ately high level of pollution in the studied territories. A look at the meth-odological assessment of soil quality and environmental monitoring of soil pollution is presented. The article presents the results of small-plot and mi-cro-field experiments of the study of agroecological changes occu...

The structural design of concrete structures needs to result in qualities ensuring structural safety and serviceability, together with durability, robustness, sustainability and resilience. Due to this, the effects of mechanical load, environmental load and even social coherence need to be reflected and included in the formulation of limit states. This is a complex matter involving the time factor, service life, degradation effects, modelling, probability analyses, limit states, costs and other phenomena, and it i...

The goals of this study were to quantify the relationship between population density and climatic variables over Russia. A paired GIS-analysis of the population density layer (a dependent variable) on climatic layers of warmth and water resources and climate severity (independent variables) resulted in a multiple linear bioclimatic model of the population density in Russia. The model explained 38% of the population density variation by climate. We applied our population model to the extreme climate change scenario...

The power and energy parameters of paddle drills used for drilling geotechnological wells in the extraction of uranium raw materials are considered. The distributions of the axial load, rotational force, and power for all rock-cutting elements of drills are obtained. A comparison of the cost of power for the destruction of the bottom of the well using a well-known and patented picobur equipped with a ring pilot showed that picobur of a new design during drilling reduces energy consumption by 14-17% due to a more r...

Currently, many researchers around the world have been focused on applying existing natural resources beside artificial and agricultural waste in RCC mixtures for dam construction to improve the properties of the resulting concrete, produce a greener RCC, and therefore, to protect surrounding environment. The aim of this experimental study is to estimate and compare pozzolanic activity of some active mineral additives used in roller compacted concrete for dam construction by using saturated lime solution method. T...

Today, the developing countries face a situation where there is an abundance of specialists with higher education, while the economy lacks qualified practice-oriented personnel. In general, there is a disproportion between the ever-increasing demand of specialists and supply on the labor market, and between the way of professional education and modern business. Society requires the commercialization of fundamental knowledge, the restructuring of the education system. Without losing its fundamental nature, educatio...

Dust emissions from industrial enterprises are often treated as total suspended particles (TSP); and they also quite often contain a wide range of chemical components. Among these components rather hazardous admixtures can be found, such as heavy metals, benzpyrene, polycyclic aromatic hydrocarbons, etc. Structure of emissions in terms of admixtures contained in them is determined by raw materials applied at a specific production, production technologies, structure of an end product, etc. Being suspended, chemical...

Various eco-friendly and cost-effective hydrocarbons clean-up methods based on natural sorbents were developed and tested, in order to prevent the massive environmental damage due to the petroleum spills. Among these sorbents, natural zeolitic tuffs are easily available and have numerous adsorptive properties that make them appropriate for the removal of petroleum substances. This study aims to preliminary investigate the sorption capacity of natural zeolites from a deposit located at Racos, Brasov County, Romania...

Flooding of peatlands occurs within the framework of the International Climate Initiative. The European Climate Initiative supports projects aimed at protecting the climate and ensuring a favorable living environment. Investment projects to restore wetlands should take into account environmental risks for the purpose of sustainable development of the region. Ryazan Meshchera is one of the main places for water reclamation activities. The main goal of flooding drained peatlands is to reduce their fire danger. To as...

Current problems of Russian subsurface users (volatility of the global energy market, ambiguity in the behavior of traditional consumers, an increase in the share of alternative energy sources in the global fuel and energy balance, low level of technological efficiency of fixed assets, insufficient processing depth, high losses of hydrocarbons, lack of technologies for recycling resources, methane emissions, etc.) reduce the environmental and economic efficiency of production, which, in turn, this leads to a deter...

Georgia belongs to the number of small, open economies. The problems in its economy are therefore similar to those of developing countries. Our country's economic growth largely depends on the scale of attracting foreign direct investments. The foreign trade suffers permanent shortages; local agriculture is underdeveloped; mechanization and melioration and Chemicals supply level is low; Moreover, the agricultural sector suffers from a lack of funds. Despite the fact the product produced in this sector is natural, ...

The Brown Coal Research Institute j. s. c. is realising the long term research and survey of the mining area of the Most Basin. One of new important tasks is problem of climatic changes. The Most Coal Basin area is known for its largest Czech brown coal deposit. It is situated in the region of North Western Bohemia - Czech mining region. The main mining companies are the North Bohemian Mines, j.s.c. and the Seven Group j.s.c. The main mining localities are the Bilina open pit mine, the Libous open pit mine, the Vr...

The problem of supplying drinking water to population of Mangisstau and West-Kazakhstan regions is especially sensitive as the region is located in semidesert zone, water resources are limited. Development of the region natural resources, creation of sufficient conditions for economy intensive development requires large quantities of quality water. Worsening of sanitation-and-epidemiological situation, unsatisfactory technical state of water-supply systems, as well as gradual contamination and salinity of water so...

In the present article, based on the analysis and identification of the problems related to the socio-economic development of the border municipalities between the Republic of Bulgaria and the Republic of Serbia, an attempt is made to identify the main problems in forming policies to improve cross-border cooperation and achieving a balanced socio-economic development that will slow down the rate of population decline in the municipalities in question. The role of the local self-government bodies and the opportunit...

Modern industrial biotechnology considers extremophilic microorganisms and, in particular, extreme halophiles as promising producers for the bioeconomy of the future. Extremely halophilic bacteria and archaea can be used for the production of carotenoids, polyhydroxyalkanoates, polysaccharides, osmoprotectors, thermostable enzymes, photosystem proteins, and can also be sources of unique biologically active substances for medical purposes. The implementation of large-scale industrial processes with minimal requirem...

The physical and chemical characteristics of sludge from the chrome production in the Donskoy Ore Mining and Processing Plant (DOMPP) owned by TNK Kazchrome JSC have been studied. Researches have been performed to determine the gravity concentration ability of sludge tailings using fractional analysis, concentration tables. It was found that it is required to classify the initial sludge into size classes to obtain high technological parameters, and beneficiation with screw separators is ineffective. New data have ...