Fleet equipping for toting auto road construction should be planned with the account of projected road schemes, regional peculiarities and target growth of labour capacity. The state-of-the-art IT solutions should be found for programming methods. It has been determined that application of the developed...

This article contains a new approach to the problem of modeling devices for the sedimentation separation of two-phase systems. It is shown that, regardless of the separation forces of the phase (gravity, centrifugal), the separation efficiency decisive parameter is the velocity gradient of the carrier...

As the complexity of the machines and equipment construction, the expansion of their use, increasing automation in the oil and gas sector, increasing loads and speeds the requirements for the reliability of technical facilities will continuously increase. This article resents the system of evaluation...

The article analyzes models of phase equilibrium of water in rocks, where a mineral matrix is treated as an assembly of particles with a determined effective molar mass, depending on dispersibility and surface properties of the mineral matrix. This provides an opportunity to develop a model of phase...

The problem of radiation contamination makes the control relevant based on monitoring studies of large areas and large masses of the population. The issue of the development of measuring equipment base is relevant. The main quality indicator of radiation monitoring devices are random measurement errors....

Numerical values of the reaction rate constants and activation energies were obtained for the system gallium - aqueous solutions of electrolytes with respect to the nature of the electrolyte and aggregation state of metal. It is shown that dissolution in sulfuric acid media is characterized by low velocity...

The article studies superposition of corrosive effects occurring at agricultural enterprises. When developing a durable building composite, it is necessary to take into account each type of corrosion to prolong resistance of the environment. The influence of long-term exposure of cement stone samples...

The problem of establishing a contact between degradation at the instrument and the circuit levels while designing very large scale integrated circuits (VLSI) is of a great interest. Instrument and circuits sensitivity to the effects conded by hot carriers is different, which is determined by a large...

Resistance to electrostatic charges is one of the most important problems limiting the very large scale integrated circuits reliability. Increased currents cause the degradation of the instruments characteristics, similar to the degradation that occurs when hot electrons stream passes through. In order...

The article provides an overview of the effects and phenomena that can be used to accomplish the development of a solar concentrator, the choice of the given physical phenomenon (specular reflection) is presented. Further, technical solutions for this task are developed, the choice of a specific technical...

The article touches upon the issue of the application of the technology of laser scanning in archaeological research of various monuments of architecture, culture and antiquity. The authors consider the principles of laser scanning, its main types (ground, mobile and air), as well as the global experience...

The article presents the results of the analysis of the quality of soybean seeds of a northern ecotype under various growing conditions. The following varieties were studied: Svetlaya, Okskaya, Magev, M-134 and M-52. The highest protein content was observed in M-134. According to the mineral composition,...

A method for predicting fill grounds used in landscaping of urban infrastructures is proposed. One of the measures to solve this problem is land remediation. New techniques of reducing economic costs are required. A program of a mathematical model has been developed with this objective. The mentioned...

The problem of effective management of the educational process through the automation of activities is most relevant in educational institutions in terms of both improving the quality of education and optimizing basic processes in general. Within the framework of this scientific article, the authors...

The paper studies mathematical modeling of effects by ballistic solid fuel pressure generators on the near-well formation zone. The research is of current relevance since no suitable tools for this type of the solid fuel can be found for hydrodynamic simulation of oil and gas wells processing. Which...

The article is devoted to the oil treatment system of a compressor unit designed for gas transportation. There is a design of the oil treatment unit, located separately from the compressor in this article. The main elements of the system are considered, the conditions of their work and the operational...

The article considers sectional centrifugal pump (SCP) designed to pump liquids into the reservoir to maintain reservoir pressure. The article justifies the use of air-cooling of the oil system of the pump major nodes, which decreases the material and energy costs and reduces the repair time of the...

The paper examines the process of heat exchange of soil mass with a gas pipeline and mathematical modeling. It involves seasonal changes in heat exchange conditions on the surface as well as cyclical changes in the temperature of the transported gas. The mathematical formulation for dynamics of two-dimensional...

The research was carried in order to study the effectiveness of using alumino-silicate vermiculite mineral of various modifications as a sorbent for the purification of environment from oil products. Thermally activated vermiculite with hydrophilic properties can be used to clean oil-contaminated areas,...

Currently, in the methodology of petrophysical research there are quite serious problems that influence significantly the profitability of the process of obtaining analysis results. Improving the efficiency of laboratory tests is an important direction in the improvement of methodological approaches...

Based on the generalization of different groups of fields of the terrigenous strata of the lower Cretaceous age of Western Siberia flooding experience, models are obtained that allow to assess the degree of hydrodynamic interaction of producing and injection wells, reflected by the maximum value of the...

The current development state of oil and gas fields is characterized by the share increase of hard-to-recover reserves, which leads to new technological solutions for bottom-hole layouts during construction of directional wells. The paper presents analytical studies of the oscillator-turbulizer, and...

Among the objectives of the oil industry of the Chechen Republic is stable covering of requirements of the republic for hydrocarbons; attaining this objective significantly depends on acceleration of scientific and technical progress within the industry. It assumes increase in oil and associated gas...

The ecological assessment of waste is an important indicator of industrial enterprise operations. The article discusses the results of research (type of environment, salt content, heavy metal and petroleum product content), encompassing ten types of different petroleum industry waste. During the research...

Ecological consequences of prolonged mining natural management in the valley of the river Baksan are analyzed. Main sources of emissions of heavy metals compounds, the nature and extent of their pollution are revealed. Ecological indicators of the post-exploitation state of landscapes can be considered...

This paper describes an experiment to study the combined effects of high-frequency electromagnetic and acoustic fields on the oil reservoir model. A mathematical model describing the physical processes occurring in the reservoir is given. By introducing an additional term, the heat conduction equation...

The article deals with the results of field testings of the automatic winding machine for ECP cable in the process of down-lifting operations in the underground and overhaul repair of oil wells at the fields of Joint-Stock Oil Company Bashneft. During the overhaul or underground repair of oil wells equipped...

The rocks of clay natural reservoirs present particular interest. On the one hand, they attract the attention of scientists from the point of view of oil content (they are enriched to a large extent with organic material), on the other hand - from the point of view of accumulation of radioactive elements,...

The article provides information on the first oil wells drilled in the North Caucasus. It analyzes the role and importance of the oil industry in the North Caucasus at the beginning of the 20th century. Large foreign companies have shown great interest in oil resources of Chechnya. The main factors that...

Due to various reasons, oil and gas there are accidents associated with open emission formation fluid with subsequent ignition. Such accidents sometimes have catastrophic consequences. Extinguishing gas wells is done by method of limiting oxygen access to the burning area. This method includes applying...

In the practice of pumping oil wells, thermo-boric conditions occurring inside the well are important. The neglect(or omission) of heat exchange processes occurring in the well may lead to a decrease in the performance of pumping equipment, reduced turnaround time and accidental failures of downhole...

Many oil companies have serious difficulties with complicating factors as the appearance of mechanical impurities in the production of wells, the deposition of asphalt-resin-paraffin substances (ARPSs) on the equipment walls, salt deposition, and corrosion of metals. The presence of mechanical impurities...

This article studies the questions of reducing the consumption of diesel fuel via the gas and diesel operating process in small-sized internal combustions engines as well as lowering the amount of noxious substances in exhaust gases. Internal combustion engines (ICE) are the main consumers of petroleum...

Currently, the use of gas methods to increase oil recovery is underexplored. However, the experience of applying these methods, both in Russia and abroad, indicates their high technological and economic efficiency. The article takes the first step towards substantiating the use of gas methods in the...

The twentieth century for Russia is the age of political, socio-economic and territorial transformations. Naturally, these processes are reflected on the spatial development. From this perspective, investigating the development of urban systems under conditions of global challenges is high on the agenda....

The paper presents characteristics of chemical and microelement composition of drainage water in dumps and the septic tank of the tailing dump in three gold ore deposits of Eastern Transbaikalia localized in a single ore field in the rocks of base composition. The ionic composition of all samples contains...

The filtrational leakages from the ash dump of the Chita TPP-1 led to the change of the natural hydrogen carbonate and sulfate hydrogen carbonate composition of groundwater to the sulfate and the hydrogen carbonate sulfate, and to the formation of the aureola of nonstandard drinking water with the excess...

The use of Earth's remote sensing methods is one of the effective methods of monitoring. It allows estimating the areas of the water line of lakes and their quantity over vast and inaccessible territories. An analysis of the dynamics of basinal lakes in the Daurian steppe Russian part from 1989 to 2016,...

The article sudies step-by-step development of air transport in the Chechen Republic. The urgency of resumption of both local and interregional flights is underlined. Besides, the article describes the impact of competition between airlines as well as cost related trends, the profitability of air tarnsportation,...

The Sakha Republic (Yakutia) has a large territory that covers various climatic zones and a network of water bodies and thus is exposed to a wide range of natural emergencies. The most typical of them is spring-summer floods that cause flooding of vast territories, facilities and infrastructure, thus...

The phytocenotic diversity of the desert steppes is preserved due to the presence of the Bogdinsko-Baskunchaksky Nature Reserve and Elton Natural Park in the southern steppe subzone of the Russian Caspian Sea region. Steppes in the Trans-Volga region are more diverse than those in the Sarpinskaya lowland....

The natural-recreational potential of Eastern European countries is analyzed in this article. The potential for regional natural recreational resources use in order to develop an international tourism are shown, considering modern changes in the structure of tourists' demand and supply in the international...

The model for mixing wastewater and river water was built using Selector software. Chemical analysis of highly mineralized wastewater from the Usolye industrial zone which is one of the main pollutants of the Angara river, and river water in the area before and after exposure to technogenic sources was...

The article assesses natural landscape conditions for forming floods on the Alazeya river and their influence on the hydrological regime. Evaluation of the moistening mode showed that an increase in the water volume is caused by an increasing amount of precipitation. The factor determining variability...

The paper studies edaphic conditions of the cenopopulation of Tulipa gesneriana, T. biflora and T. biebersteiniana growing in the Black Lands nature reserve. These cenopopulations belong to rare and protected plants in many regions of Russia, including the Republic of Kalmykia. The soil profile cuts...

The Kosinskie Lakes are the only natural reservoirs of glacial origin on the territory of Moscow that are part of the natural and historical Kosinski park. Moreover, they are a natural landmark. Therefore, they need to be studied thoroughly and attentively. The ecological situation of the area is quite...

The article presents the results of studies on the development of methods for obtaining normal heights in Vietnam using the global model EGM2008 and software for processing GNSS measurements. Errors between normal heights calculated from the global geoid model EGM2008 and heights determined from GNSS...

To assess the current state of the coastal zone of the Sea of Azov, we made an analysis of socio-economic and environmental consequences of hazardous coastal processes, a comprehensive environmental and economic assessment, which includes the study of the main natural, economic, social and environmental...

The article touches upon the issue of automatic recognition and subsequent processing of data on natural and industrial objects of the world. The obtained data is a result of laser scanning. For data analysis in 2018 a research group, consisting of specialists from Kuban State Technological University,...

Lake Valencia is the second most important natural freshwater basin in Venezuela. The expansion of industrial and agricultural activities and population growth over the past four decades has accelerated the process of eutrophication of the lake waters at such a rapid rate that it cannot be compensated...

The article analyzes the distortions introduced by the cartographic projection of Gauss. The authors justify that modern high precision measuring instruments should be accompanied by qualitative methods of measurement results processing in the mountainous areas. It is shown that the operation of transfer...

The article analyzes information on oil and gas deposits obtained by seismic exploration, geological and geophysical data compilation and reinterpretation for the western part of the Terek-Caspian trough. The tabulated data on morphological parameters (linear dimensions, amplitudes) of local structures...

The article studies current trends of global digitalization of all spheres of society, including economic activities. The author analyzes and substantiates the significant contribution of space technologies and knowledge to the development of the world economy. Information obtained from the space helps...

The Republic of Sakha (Yakutia), compared with the other regions of our state, is currently considered to be poorly studied in terms of introducing innovative solutions for the spatial organization of the road network. Today's financial constraints and the geographical location of the Republic of Sakha...

This article discusses the concepts of environmental management, analyzing the processes of extraction, pricing and the use of limited natural resources, as well as the role that limited natural resources play in the economic development of society. The formation and development of systems in each region...

The paper presents an environmental study of the air basin, soil cover and large water bodies (Terek and Sunzha) in the territory of the Chechen Republic that was conducted by the authors in 2017. The analysis showed that the ecological condition of the

The paper provides the systematic analysis on highland Alpine rocky-scree vegetation of the Central and Eastern Caucasus. In taxonomy the vegetation under consideration is characterized with domination of dicotyledonous, specific family-species spectrum (Caryophyllaceae-species and Fabaceae-subspecies),...

Species of plants, forming upper-alpine rock-scree vegetation of Central and Eastern Caucasus, have different habitats, in most cases exceeding the limits of the studied area. Analysing these habitats enables to discover the chorological nature of the researched flora, determine dominating geoelements,...

This article provides examples of the use of geographic information systems in the Republic of Sakha (Yakutia). The results of the creation of a GIS - project with ethnological expertise of the territories of traditional environmental management of indigenous peoples of the North are presented. Created...

The life form, or a plant habitus as a set of adaptive features reflecting the impact of environmental factors is one of the important indicators of environmental habitat conditions. The study of urban floras identifies directions, dynamics and nature of the anthropogenic transformation of phytobiota...

The paper deals with the issues of constructing the distribution of pore throats by size for productive strata of Western Siberia at a known value of the coefficient of absolute permeability. It is shown that for this purpose it is possible to use the Brooks- Corey model, which allows approximating the...

The paper studies the properties of mineral powder, asphalt binders and structural and mechanical properties of asphalt concrete. Asphalt concrete with ground granulated slag as a mineral powder has high heat, water and frost resistance. The use of mineral powders can reduce the consumption of the binder...

As a result of theoretical research of experimental data a polymer highly-filled composite CDC (composite durable cement ) with the gradient of physico-mechanical and antifriction properties changing in depth which together with high strength and durability has an impact resistant viscous core. It...

There is the study outcome of the stress-strain state of single-layer and double-layer reinforced concrete elements with simple bending in the article. The data obtained in numerical experiments on finite element schemes perfectly matches the field tests results.

Under condition of infill construction pile driving causes an appreciable impact on adjacent buildings, which should be accounted during the works. The work is the first to present the materials obtained in 1990s. The ground was represented by soft and plastic clay with the thickness from 4.5 to 13.0...

The article is devoted to the use of modifying additives into the concrete mix during the construction of multi-storey buildings. Additives accelerating concrete hardening allow it to quickly build upper floors, but increase the cost of concrete mixes. Thus, reduction of the holding time will not be...

The existing computational model to determine the strength of inclined sections of bending reinforced concrete elements, adopted in the regulatory documents of the Russian Federation, due to the complex stress-deformed state has significant differences with the actual nature of structure work and requires...

To date carbonate technology for producing Portland cement is the only, and the resulting product is a leader in the production of binders and, according to Russian and foreign scientists, this situation does not change even for many decades. But most researchers hope that a more effective binder with...

The paper presents the results of determining the degree of hydraulic activity of manufactured mineral filler (concrete broken material, demolition of buildings and structures, ceramic brick fights, ash and slag waste from thermal power stations (TPS), substandard raw materials mixed with cement used...

The paper presents the results proving the possibility of using the super-plasticizer of the type "Linamix PC" in highly mobile and cast concrete mixes for the production of high-strength concrete. The paper gives results of raw materials tests for the preparation of monolithic compositions of high-strength...

The paper presents the results of studies the role of modern chemical, mineral and micro-reinforcing additives in the process of structure formation of high-strength concrete. The paper reveals the features of the structure formation of cement stone in the presence of a superplasticizer. The paper experimentally...

The paper presents the results of studies of monolithic concrete mixes and concretes obtained with the integrated use of local natural and manufactured raw materials, including concrete broken materials and crushed bricks. Formulations of filled binders based on finely ground mineral filler from manufactured...

The article presents an analysis of the experience of using the products of buildings and structures demolition, the technology of recycling secondary raw materials to produce secondary raw materials for concrete. The results of tests of heavy high-strength concrete (HSC) on the base of filled binders...

The work is devoted to the study of the parameter influence on the relative position tower crane and the panel warehouse on the construction site. Due to the nonlinearity and trigonometricity of the equations obtained, they are solved numerically using a specially compiled computer program. The goal...

A hydrometallurgical technology has been proposed for processing the refractory part of the lining of aluminum production electrolysers dismantled and disabled for overhaul. Fluorine-containing compounds are transferred to the solution, which allows obtaining cryolite for being used in the electrolysis...

The article justifies the need to take into account the structural strength of soils in the calculations of the base foundations yielding, as well as limiting the depth of the compressible thickness of the base by the value of the structural soil strength. The concept of the depth of the compressible...

During burning of Portland cement clinker, a large amount of both clinker and aspiration dust accumulates in electrostatic precipitators and rotary kilns; therefore, rational use of these products containing a certain portion of a complete raw material is an important task in the cement industry. It...

The influence of carbon dioxide on swelling, size of particles, intensity of sedimentation, jellification time, pH value, chemical composition of sediments from suspensions is studied bentonites of two types NaM and CaM in the field of the Chechen Republic for. It is shown that carbon dioxide is well...

This paper presents the data of changes in the coefficient of thermal expansion of composite reinforcement and heavy concrete in a wide temperature range. Studies allow not only to justify the high stability of the BPA in terms of thermal expansion, but also to assess the subtle effects of measured parameters...

We present the results of studies of vermiculite concrete composites with various silica components such as cinder, tuff sand and volcanic ash for fire protection of building structures. The study shows that introduction of saponified wood resin into the vermiculite concrete mixture improves its rheological...

The article analyzes research prospects of porous powder mineral materials for stabilizing additives used for macadam mastic asphalt concrete mixtures. The interaction of finely dispersed crushed claydite powder with a bituminous binder was studied. Efficiency of the use of expanded clay powder as a...

The article touches upon the issue of the assessment of the effect of atmospheric carbon dioxide on the development of creep deformations in autoclaved aerated concrete. The authors carried out the extensive experimental and theoretical studies of creep deformation and its reversibility on prisms with...

In the article the analysis with the generalization of experimental and theoretical studies of foreign and Russian scientists is given in order to compare, substantiate and refine existing scientific theories and statements on the nature and mechanism of carbonation factor effect on shrinkage properties...

The article deals with topical issues of determining the accuracy of geometric characteristics of buildings and structures by modern means of geodetic measurements. The method of testing high-precision electronic total stations under production conditions is proposed to evaluate and improve the accuracy...

As a result of the literature sources analysis, it was concluded that the geometrical parameters offered in the scientific and technical literature to determine the deformed shape of buildings and defence stores and to restore the operational reliability do not fully characterize the object state. The...

The paper presents the results of an experimental study considering the dependence of the surface tension of bentonite aqueous suspensions on the concentration of the solid phase and the time of the surface formation. To conduct experimental studies, a new technique has been developed, which allows leveling...

Changing the direction of flow in a porous medium, in reservoir conditions, is important for increasing the flow of oil to the bottom of the well. The use of flow diverting technologies contributes to the alignment of the injectivity profile of injection wells and the selection profile in producing wells....

The main requirements and conditions for the formation of the physical and physicomechanical properties of high-strength quasi-nanostructural polymer composites are given. Methods for reducing porosity and increasing the density of the polymer composite structure have been studied. Cement stone is considered...

The article presents the outcomes of experimental research on reinforcement voltage loss caused by creep of autoclaved aerated concrete for the preliminary stressed aerated members. It has been stated that the losses have linear dependence on the initial level of reduction in aerated concrete in the...

The estimation methodology of construction products cost - concretes on multicomponent binders, containing the matrix formula by Professor M.D. Kargopolov, which is recommended to be considered as a modern micro-forecasting tool for the production efficiency of construction materials and articles, allowing...

The construction of multi-storey residential buildings is associated with many problems, since the underground part is exposed to a large number of risks during design and construction. The paper analyzed and proposed the most appropriate option for the device foundation for a multi-storey residential...

Surface and structural properties of the cement stone were studied using a complex nanostructured modifier. The surface properties of mixing water with surface-active substances in combination with nanoparticles of bentonite deposits of the Chechen Republic were investigated. The surface tension isotherms...

The article presents the current problems of irrigation canals. A statistical analysis of data on the status of irrigation canals in the Saratov region has been carried out. The problematic aspects of the irrigation network, on which work is needed, are noted. The main types of water loss from the irrigation...

The article deals with water-integrated scheduling of metallurgical, mining and processing enterprises on the areas of water shortage of the Southern Urals and the Volga region. The key factor of these regions development as well as their water-consuming metallurgical field is water resources which are...

The article presents the results of experimental studies on concentration and temperature dependence of surface tension (ST) and density of indium-tin alloys. The characteristic feature of these experiments is that we studied surface tension and density by two independent methods that improved reliability...

The phase diagram of a four-component reciprocal system Na, K‖Cl, BO2, CO3 into simplexes was triangulated, the main dominant chemical exchange reactions were revealed. It is shown that in a four-component reciprocal system, Na, K ‖ Cl, BO2, CO3, continuous rows of solid solutions based on sodium and...

Temperatures of phase transformations of polymer-paraffin compositions were investigated. Graphical dependences of temperature of the beginning of crystallization, temperature of the end of crystallization and phase hexagonal-rhombic H?R transformations in the solid state of oil food paraffin П-1 on...

The paper gives a general characteristic of coal refuse processing products: intermediate fraction - coal-free screenings; small fraction - carboniferous sand containing up to 30% coal; fine fraction - silt coal containing up to 50% coal. Green and baked ceramic properties of products of processing waste...

Today, silicate wall materials are widespread among the applied wall materials in construction. Their traditional production technology involves the use of cementing component, obtained by the mixed grinding of unhydrated lime and silica materials. Nowadays, one of the main tasks is to reduce the production...

The paper presents the results of the study of polymer composite materials (PCM) based on polytetrafluoroethylene (PTFE) filled with carbon fibers (CF) and ultrafine polytetrafluoroethylene (UPTFE). Physic-mechanical and tribological characteristics of PTFE based polymer composite materials containing...