bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of the correlation between levels of TNF-α and MCP-1 in plasma and tissues of rats infected with pseudomonas aeruginosa
Authors: Hasson Al-Husseini Alaa Mohammad , Mohammed Ghaidaa Jihadi , Saba Falah Kliaf
Published: November 2020

For the importance of the infection with Pseudomonas aeruginosa which result in serious illness and the complications that may exceed more than one organ of the body, this study was carried using laboratory animals, rats as a model for the mammals’ animals to detect the levels of TNF-α and MCP-1 in plasma and tissues and the histopathological effects that can be caused by these bacteria in several organs, lung, liver, spleen, kidney and heart. Methods: In this study, we used 24 rats, 12 untreated (negative) group and 12 treated group that injected intrapertonally with Pseudomonas aeruginosa suspension for two periods (1 and 7 days). At the end of experimental period, animals were sacrificed, blood samples were collected and dissected each of lung, liver, spleen, kidney and heart to determine the level of TNF-α and MCP-1 in the plasma and tissues in addition to investigate the histopathological changes. Results: Rats infection with Pseudomonas aeruginosa caused a significant increase in the levels of TNF-α and MCP-1 in the plasma and studied organs tissues in comparison with negative rats. In addition to investigate the positive correlation between TNF-α and MCP-1 levels in both plasma and tissues. Light microscopic examination appeared the structural changes in all studied organs of animal infected with P. aeruginosa for two periods and this change was more acute in 7 days of treated compared with untreated groups, where have normal structure. In lung, infiltrations of inflammatory cells in addition to necrosis and hemorrhage of respiratory units. Liver sections characterized by irregularity architecture structure with congestion of central vein. Also, we proved abnormal texture of spleen tissue and proliferation in central germination of white pulp. In addition to dilation in parts of urinary duct in kidney, including glomerular collapse, infiltration of lymphocytes. For heart, there is a disorganization of myocardium tissues. While all organs slices of negative groups were normal. Conclusions: We conclude from the results of the current study that the infection with Pseudomonas aeruginosa can elevate inflammation in most organs of the body by induce over expression of TNF-α and MCP-1, which is reflected negatively on the performance of the function and thus the overall health of the body.
Antimicrobial Effect of Silver Nanoparticles and He-Ne Laser on Bacterium Staphylococcus Aureus in vitro
Authors: Riah Khalid I.
Published: November 2020

This study shows the effect of silver nanoparticles (Ag-NPs) or He-Ne laser (2mw) each of them individually, on Staphylococcus Aureus (S. aureus); also study the dual effect of nanoparticles and laser energy to kill or inhibition of bacterium. He-Ne laser with different time of irradiation and Ag-NPs with different concentrations were used against S. aureus bacterium. The results showed that S. aureus was affected by Ag-NPs especially in high concentration and there was a little effect of He-Ne laser on bacterial growth.
Genetic Association between tumor necrosis factor (TNF-alpha and TNF-beta) gene polymorphisms and inflammatory bowel disease
Authors: Al-Taei Orass. M.Sh
Published: November 2020

Background: Inflammatory bowel disease (IBD) is associated with chronic inflammation of the endothelial lining of the gut. Although, the exact aetiology is not completely understood, combined genetic and immunological factors appear to promote disease initiation and progression. Several studies associated the illness with single nucleotide polymorphism (SNP) on major immunological cytokines such as TNF-alpha and TNF-beta. Thus, the present study aims to investigate TNF-α and TNF-β genes polymorphisms in cases diagnosed with IBD. Subjects and methods:Genomic DNA isolation was performed on isolated buffy coat layers from peripheral blood of 75 individuals. Candidate SNP locations on TNF-α and TNF-β coding sequences were amplified by PCR and sequenced for SNP identification. Results:Genetic examination of TNF-α and TNF-β allele polymorphism revealed significant association with IBD prevalence and disease manifestation, (p=0.002) and (p<0.001) respectively. GA haplotype frequencies were higher in IBD patients when compared to healthy control, being 29(58%) in TNF-α, and 26(52%) in TNF-β of the studied alleles. Similarly, both GG and AA haplotypes of TNF-α showed a strong association with cases diagnosed with ulcerative colitis but not with Crohn’s disease (p=0.007). Additionally, none of the studied haplotypes of both cytokines showed any association with gender or age groups of the included individuals. ConclusioTNF-α (-308G/A) and TNF-β (+252A/G) sequence analysis revealed that cytokines heterogeneities are associated with IBD susceptibility. Early genetic screening for individuals with familial history could provide a better predictive value for IBD initiation and progression, that would essentially help in early diagnosis, management and prevention.
Therapeutic attempt of amoebic dysentery with water extract of Eruca sativa L. in laboratory mice and its histopathological effect
Authors: Mahmoud Zangana Ashraf Jamal , Hassan Erdeni Abid Ahmed
Published: November 2020

471 fecal samples were collected and percentage of infection with amoeba dysentery was 13.375% for 63 positive samples for all age groups. All samples were taken from Salahuddin General Hospital in Tikrit and its suburbs for period from beginning of October 2018 until end of March 2019. The highest incidence of parasite was recorded in December at 16.091%, the lowest in October was 8.823%, the highest infection rate was in males at 18.627% and in females 9.363%. The highest incidence of males in age group 1-10 years was 40.476%, while the lowest incidence in 21-30 years was 7.142%. The highest infection rate for females was in age group 1-10 years by 16.393%, and lowest rate was among age group 12-30 years with a percentage of 3.448%. The results showed a variation in concentration of lipids, total proteins, triglycerides and some liver enzymes in laboratory mice infected with dysentery amoeba and treated with different concentrations of water extract ofEruca sativaL. using three concentrations (0.5, 1, 2) ml. The microscopic examination of tissue sections showed revealed a dissociation of some lining cells of colon in infected mice, presence of renal glomeruli in cortical tissue in kidney that filled each Bowman purse and on surface of each glomerulus of lymphocytes, and presence of leukocyte infiltration at base of mucous glands and observed extension of this infiltration to smooth muscle layer forming colon wall, colon cavity contained mucus and a number of cysts parasite. In liver, there was an enlargement of hepatic cells and presence of degeneration of nuclei of these cells, and observed lymphocytic infiltration around these blood vessels.
Study of energy spectrum of 116Sn and 116Te nuclei by using surface delta and modified surface delta interactions
Authors: Obeed Fatema H. , Abed Baneen S.
Published: November 2020

In this paper, surface delta and modified surface delta interactions have been used by applying the nuclear shell model to calculate values of excitation energies for isotopes of equal mass number containing two nucleons outside the closed core 114Sn, these nuclei are; The isotope (Tin) 116Sn contains two neutrons within the model space (3s1/2, 2d3/2, 1h11/2) and the other isotope is 116Te (Tellurium) contains two protons within the model space (1g7/2, 2d5/2, 3s1/2, 2d3/2, 1h11/2). The current results of the above isotopes are based on using the Fortran 95 program code to program the above two interactions equations to calculate the values of single particles energies, matrix elements in the state of mixing configurations of orbits for and through which it is possible to calculate the eigenvalues, which are necessary to calculate the excited energy of all isotopes used in this study. By comparing the current theoretical results with the practical results, the expected theoretical results appeared to be in good agreement with the practical values, as well as confirmed and determined of the total angular momentum and parities of some unconfirmed and undetermined practical values, in addition to obtaining a new theoretical energy levels were determined of unspecified practical energies and momentum and this increases the theoretical knowledge of the studied isotopes relative to the energy levels.
Spectrum of a non-selfadjoint quantum star graph
Authors: Rivière Gabriel , Royer Julien
Published: November 2020

We study the spectrum of a quantum star graph with a non-selfadjoint Robin condition at the central vertex. We first prove that, in the high frequency limit, the spectrum of the Robin Laplacian is close to the usual spectrum corresponding to the Kirchhoff condition. Then, we describe more precisely the asymptotics of the difference in terms of the Barra–Gaspard measure of the graph. This measure depends on the arithmetic properties of the lengths of the edges. As a by-product, this analysis provides a Weyl law for non-selfadjoint quantum star graphs and it gives the asymptotic behaviour of the imaginary parts of the eigenvalues.
Second largest eigenpair statistics for sparse graphs
Authors: Susca Vito A R , Vivo Pierpaolo , Kühn Reimer
Published: November 2020

We develop a formalism to compute the statistics of the second largest eigenpair of weighted sparse graphs with N ≫ 1 nodes, finite mean connectivity and bounded maximal degree, in cases where the top eigenpair statistics is known. The problem can be cast in terms of optimisation of a quadratic form on the sphere with a fictitious temperature, after a suitable deflation of the original matrix model. We use the cavity and replica methods to find the solution in terms of self-consistent equations for auxiliary probability density functions, which can be solved by an improved population dynamics algorithm enforcing eigenvector orthogonality on-the-fly. The analytical results are in perfect agreement with numerical diagonalisation of large (weighted) adjacency matrices, focussing on the cases of random regular and Erdős–Rényi (ER) graphs. We further analyse the case of sparse Markov transition matrices for unbiased random walks, whose second largest eigenpair describes the non-equilibrium mode with the largest relaxation time. We also show that the population dynamics algorithm with population size N
P does not actually capture the thermodynamic limit N → ∞ as commonly assumed: the accuracy of the population dynamics algorithm has a strongly non-monotonic behaviour as a function of N
P, thus implying that an optimal size

N

P

⋆

=

N

P

⋆

(

N

)

must be chosen to best reproduce the results from numerical diagonalisation of graphs of finite size N.
Determination of optimal technological parameters for the manufacture of small architectural forms of gypsum by dyeing in bulk based on an analysis of consumer preferences
Authors: Erofeev A V , Mikhaylov V A
Published: November 2020

The paper describes the technology of manufacturing small architectural forms of gypsum. The required appearance (color) is achieved by coloring the product in bulk (adding color to the water, which is mixed with gypsum). The appearance of the products with different percentages of color in water is given. The method of expert evaluation revealed consumer preferences. Studies were conducted for three colors (red, blue, violet). The preferred tonality when dyed in bulk is the tonality obtained by adding 50% tint, and less preferred when adding 10%. The results of the study in three batches of samples showed that this consistent pattern does not depend on color. There is a consumer need for a wide range of tonalities within a single color scheme.
Modified heat-resistant concrete using slag aggregates
Authors: Burkhanova R A , Akchurin T K , Stefanenko I V
Published: November 2020

The article investigates the sorption properties of modified heat-resistant concrete based on liquid glass and slag aggregates produced at Volzhsky Pipe Plant through the BET method. For the purpose of comparative analysis, the specific features of the changes in the sorption properties of heat-resistant Portland cement concrete and aluminous cement concrete as well as of ordinary concrete resulted from high-temperature heating have been determined. The adsorption isotherms of heat-resistant and ordinary concretes have been obtained. The data on the changes in concrete specific surface area due to an increase in the heating temperature and elongated duration of the exposure to high temperatures have been found. The authors have also revealed the changes in the structure and the properties of the materials under investigation depending on the type, composition and hygroscopic behavior of the components included.
Transformation of non-firing technology issues for construction composite production from particulates using phosphogypsum
Authors: Kukina O B , Volkov V V , Volokitina O A
Published: November 2020

This paper presents the research results of the structure formation process of construction composites with the simultaneous extraction of a non-radioactive rare-earth metals concentrate in a non-fired technological process from a chemical production waste, phosphogypsum, which is being accumulated in dumps for years and causing damage to the environment. The article provides the results of the initial material studies by the X-ray fluorescence method, differential thermal calorimetry, and spectrometry on such aspects as radioactivity, chemical composition, dehydration energy. A flow chart of the energy-saving non-firing technology for the direct production of wall materials with a simultaneous extraction of the rare-earth metal concentrate from phosphogypsum is presented. When leaching the phosphogypsum, the concentrate, containing non-radioactive rare-earth metals, was obtained. It has been shown that phosphogypsum can be used as a construction material without restrictions on radioactivity. Laboratory research and verified technology proved the phosphogypsum exhibits astringent properties that provide the production of wall materials by non-firing method with the simultaneous extraction of the rare-earth metal concentrate. The developed technology makes it possible to separate strategically important rare-earth metals from the phosphogypsum while reducing the cost of production of wall materials by 2 … 3 times.
Basalts of the Republic of Buryatia and their suitability for obtaining mineral fibres
Authors: Khudyakova L I , Buyantuev S L , Buyantuev V T
Published: November 2020

Mineral wool is one of the most effective and environmentally safe types of heat insulation materials. Basalt is the main raw material for its production. The quality of the fibre produced depends on its chemical composition. The priority task is to assess the suitability of basalts for use in the production by their chemical composition. The main indicator is the acidity index, which reflects the acid-base characteristics of rocks. Basalt deposits of the Republic of Buryatia have been studied. It was found that the basalts of the Ilyushkin Klyuch deposit have a chemical composition which meets the requirements for continuous fibre production, and the basalts of the Selendum and Mukhor-Talinsky deposits – for staple fibre production. The production of continuous fibres for basalts of the Selendum deposit requires additional charging of calcium-or magnesium-containing rocks, and for basalts of Mukhor-Talinsky deposit-an addition of silicon-containing rocks.
Contemporary methods for production of Prussian blue
Authors: Vyboishchik A V , Popov M Yu
Published: November 2020

Prussian blue, a blue-coloured pigment, has found a wide application in various branches of production, including such industries as construction and transport, where Prussian blue is applied as a coloured coating, and also in agriculture and medicine. A typical technological process for production of Prussian blue includes nucleation, enlargement of formed crystals, aggregation of formed crystals, and, finally, recrystallization followed by further oxidation, rinsing of impurities and drying. A typical technological process for production of Prussian blue is observed, its features are studied, and the influence of chemical components on the properties of the obtained pigment are examined. Recommendations on the mole ratio and concentrating of chemical components are given. The pigment produced by the given recommendations is superior in quality to foreign counterparts.
Filtration materials of natural origin
Authors: Strelkov A K , Bykova P G , Gridneva M A
Published: November 2020

The research reveals test results of physical and mechanical properties of filtration materials of natural origin (that is of crushed expanded-clay aggregate with 525 and 555 kg/m3 bulk density and “Diamix AQUA” with 670 kg/m3 bulk density). The raw materials for the production of expanded-clay aggregate are easily expansive clays containing such oxides as SiO2 (up to 60 %), Al2O3 (up to 20 %), Fe2O3 (from 4 to 20 %). “Diamix AQUA” is a material obtained on the basis of natural diatomite which contains exoskeletons of diatoms. The content of oxides in “Diamix AQUA” is as follows: SiO2 – no less than 83%, Al2O3 – no more than 6%, Fe2O3 – no more than 3.5 %. There are certificates of state registration for both types of filtration materials. The research results of the new filtration material “Diamix AQUA” used as a filter bed showed its acceptable physical and mechanical properties. “Diamix AQUA” regenerating requires an increased wash-water rate. Such filter media can be applied to newly constructed filtration facilities. When using “Diamix AQUA” in existing filter beds, it is necessary to check the capacity of the drainage and distribution system.
Experimental substantiation by choosing basic variant of plates with cylindrical dowels
Authors: Isupov S A
Published: November 2020

The article is devoted to the experimental substantiation of the choice of the basic version of plates with cylindrical dowels for joints of wooden structures-pusher plates of the TsNIISK-KirPI system. The actuality of the study is due to the lack of experimental data on the bearing capacity and stiffness of the joints regarding various types of dowel plates used for joining (increasing of cross section) of wooden elements working according to an asymmetric pattern. The purpose of this article is to determine the bearing capacity and stiffness of such joints on various types of nail plates and, based on the analysis of experimental data from short-term tests, to justify the choice of the basic version of TGk type dowel plates.
Finite element modelling reinforced concrete beam in transverse bending zone
Authors: Filatov V B
Published: November 2020

The article presents methods and results of studying the stress-strain state of a reinforced concrete beam in its area of transverse bending, using the finite element models. The advantage of the finite element modelling method is relative simplicity of mechanical and physical interpretation of the finite element models. Herein, we present a description of finite element model and the method for numerical investigation during its loading and evaluation of the stress-strain state. Testing of the finite element models were performed using different lengths of shear span, taking into account the inelastic properties of concrete. During the models’ tests, the process of cracks formation and development was studied while taking into account the bond of reinforcement to concrete, which changes in line with the adopted law. We also evaluated the parameters of stress-strain state of the beam blocks separated by cracks and the stressed state of concrete at the tip of an inclined crack, depending on the loading level. Based on the results of numerical experiment, we obtained distribution patterns of principal stresses for the concrete and those of shear stresses along the reinforcement and concrete contact surface, depending on the level of loading, the degree of bond failure and the length of shear span.
The use of damping devices to increase the seismic resistance of frame buildings
Authors: Belash T A , Belashov M S
Published: November 2020

Frame system is one of the most common types of systems in the construction and design of buildings and structures due to their •flexibility• in the choice of design solutions, which, as a result, allows you to use this system in buildings and structures for various purposes, and in different natural and climatic conditions, including in conditions of high seismic activity. However, the analysis of consequences of strong earthquakes showed that many of the frame buildings during seismic effects get serious damage caused by the destruction of their joint connections, and as a consequence, instability of the frame to seismic shocks, therefore, the issues of reliability and safety of operation of buildings are important for their functioning. One of the ways to increase seismic resistance is the use of various means of seismic protection, including earthquake extinguishing devices in the form of dampers, which are widely distributed in the world. However, their application in the domestic practice of earthquake-resistant construction is limited. The article presents an overview of damping devices and conducted a computational study of the effectiveness of traditional and non-traditional solutions in the form of dampers in frame multi-storey buildings to increase their seismic resistance.
Treatment of multi freedom constraints in geometrically nonlinear stability analysis of truss structures using penalty function method
Authors: Quyen Vu Thi Bich , Tien Dao Ngoc , Dat Pham Van
Published: November 2020

This paper focus on the treating the multi freedom constraints in geometrically nonlinear buckling and post buckling analysis of truss structure using finite element method. The solution of geometrically nonlinear buckling problem of truss structure having multi freedom constraints is required to incorporate the boundary constraints to the nonlinear master stiffness equation. This work proposes approach to impose the multi freedom constraints and construct stiffness equation for solving the nonlinear buckling problems of truss structures using Penalty function method. The nonlinear balanced equations for buckling analysis of truss structures are developed by minimization of the augmented potential energy function of system by incorporating the multi freedom constraints and changing the constrained problem to the non-constrained problem using Penalty objective function. Using the arc length method, this research proposes the incremental-iterative algorithm for solving the nonlinear balanced equations. Based on proposed algorithm, the calculation program for determining equilibrium paths is written. The numerical test results show the efficiency of proposed method in analysing buckling and post buckling behaviour of truss structures.
Organization of construction in the aspect of strategic development programs for the construction industry
Authors: Peshkov V V
Published: November 2020

The construction complex is a multi-industry production and economic system, the level of economic and production and technical potential of which determines the conditions and state of progressive and effective development of not only the construction complex, but also the national economy as a whole. The complexity of internal technological and intersectoral relations of the construction complex turns it into a multi-criteria object of forecasting. Construction as a component of the investment and construction complex has a special role in the structural restructuring of the material base of the production potential of the regional economic complex. Given this, it is relevant to evaluate the performance and indicators of the construction complex over time, which will allow you to identify the main trends and determine the overall level of development of the country’s construction complex.
Digital technology in the construction of Norwegian house
Authors: Maizel I G , Maizel I V , Platonov V V
Published: November 2020

This work shows the development and implementation of digital technology in the production of wooden houses using the “Norwegian carriage”. The methodology of all stages from designing a house, developing control programs and manufacturing a house with minimal human participation is considered. This approach can significantly reduce the human factor and increase productivity and quality of products. The equipment designed and manufactured for the implementation of this technology is described. The results of experimental processing and assembly of house elements according to the “Norwegian technology” are shown. The cutting modes were worked out and a tool was selected to obtain a high-quality surface.
Recommendations accounting for anisotropy in the calculation of soil bases
Authors: Korobova O A , Maksimenko L A
Published: November 2020

The article contains recommendations prepared for “SP 22.13330.2016” foundations of buildings and structures”, where it is proposed to apply and take into account the deformation anisotropy in the calculations of ground bases. Consideration of deformation anisotropy is possible if there are reliable methods for predicting the stress-strain state (VAT) of soil bases. The existing calculation methods are based on the application of linear deformable medium theories. Over time, it becomes clear that the main provisions of the linear elasticity theory you can use it to describe underground areas, but with large adjustments, which leads to the development of new computational methods that take into account the deformation anisotropy.
The nature of the dynamic stress field formation around the underground hydraulic mine workings
Authors: Yatimov U A , Yatimov A J , Yatimov E A
Published: November 2020

The article discusses the features of the formation of a dynamic stress field and manifestations of rock pressure around hydraulic tunnels. The results of the calculation of the dynamic stresses in the rock mass of the surrounding hydraulic tunnels, the turbine hall, the transformer room of the Rogun HPP are presented. Analytical studies are confirmed by data obtained as a result of observations of the behavior of workings under dynamic loads in production conditions at the construction of hydroelectric power plants. The influence of blasting operations on the development according to the form adopted in hydraulic engineering was also considered. Based on the studies carried out in the chamber sections of the turbine hall and the transformer room of the Rogun HPP, it was found that the maximum and minimum principal stresses σ1
Λσ3 are horizontal, while the stress σ1
in direction coincides with the longitudinal axis of the turbine hall, and σ3
with its transverse axis the average principal stress σ2
is vertical.
Algorithms of generating cuspidal edges of developable surfaces
Authors: Kovaleva N V , Fedorova A V , Pashyan D A
Published: November 2020

Ruled surfaces (torses) are widely used when designing surfaces of machine parts, architectural projects, building structures, plow-bottom surfaces, etc. A ruled surface is generated by moving a straight line continuously in a straight line space in predetermined manner. Otherwise, a ruled surface is a one-parameter set of lines. Ruled surfaces are handy for practical application, since they can be manufactured from rectilinear elements widely provided by modern industry. All ruled surfaces are in divided into two types: developable and nondevelopable. Torses can be superposed on a plane by means of flexural deformation without strain and compression. This property of developable surfaces makes possible to easily produce them from flat materials. It is common knowledge that a torse is a surface which represents a set of lines being in contact with a given spatial line. A line which is tangent to all generatrices is called a cuspidal edge of the given developable surface. Thus, creation of spatial lines is a main point in designing developable surfaces. The article deals with algorithms of generating spatial lines by means of rolling machines for cylinders, cones and generalized torses that can be used hereafter as cuspidal edges when designing developable surfaces.
Factory towns of the Urals. The uniqueness of the planning structures of these towns
Authors: Sidorenko M Yu , Ponomareva Zh V
Published: November 2020

The Urals is rich in raw materials, forests, lakes, rivers, peculiar terrain allowing one to build dams, where factories were formed in the 18th century. A qualitatively new approach to the formation of enterprises based on the use of natural resources was given by the uniqueness of the architectural and planning structure of master plans and architectural treatment, which allowed factories to develop into factory towns. Factory towns currently operate and can develop in the future. The availability of the unique historically developed environment of enterprises and factory environment and the presence of the most valuable monuments of industrial architecture on their territory reveal the major potential for the consistent development and establishment of new functional capabilities of such factory towns. Old factory sites can become resource territories of a town with a further reorientation to new functions since production facilities are valuable as territories equipped with energy and transport communications. This allows one to use them in the future to create centers of innovative technologies, a base for scientists, educational and industrial complexes, cultural centers with the formation of industrial architecture museums and the development of metallurgical technologies, industrial parks, logistics, exhibition and shopping centers, to adapt them for municipal sports and entertainment facilities.
Creating a brand character for making animations in 3D graphics editor
Authors: Kolesova A
Published: November 2020

The article focuses on the stages of designing a 3D brand character, algorithms for practical usage. It also reveals the necessity of using a character as an element of a corporate style. The author analyses the significance of using a 3D character in advertising for brand promotion. The article also summarizes the basics of working in Autodesk 3Ds Max and presents the definition of a 3D model, spline, characteristics of Edge, Border, Polygon, Element and Vertices, renderers, animation. The author demonstrates how to use a polygon and spline methods as well as animation method with Bones. The paper dwells on creating primitives, splines, materials and light sources. The author also suggests an example and step-by-step instruction starting from a sketch and finishing with a scene visualization with a character. The results can be used by graphic designers who face the task of creating a 3D character.
State assessment of urban environment taking into account the development of engineering systems
Authors: Bakaeva N V , Novikova T M , Kuznetcova T L
Published: November 2020

In conditions of urban environment land resources have special importance as a valuable natural resource. This happens in our country in conditions of market economy development and formation. Cadastral and economic valuation of urban land is a part of inventory and urban planning policy. This research is based on the principle of market value, when the amount of land fees depends on the advantage of city position in the territory of the Russian Federation economic district and cadastral quarter on the plan of the city and the level of engineering systems development. The object of the research is Kursk. It is a regional center of Central Black Soil Region. The level of engineering systems development is an evaluation criterion.
Basic methodical design stages of renovation of municipal industrial development
Authors: Shyshkin E , Viatkin K , Haiko Y
Published: November 2020

The paper concentrates on renovation of industrial territories, particularly topical in the Ukrainian cities. As a result of reduction in production there are large-scale decaying industrial areas with constructions, storage facilities and related infrastructure which stay off stream. Over the past few decades de-industrialization of big cities received wide publicity. In that context the necessity arises to carry out works related to renovation of industrial development, its adaptation to present-day conditions of city functioning and sustainable growth. The paper gives definitions to renovation and industrial and production area. Basic city-planning tasks in enhancement of industrial areas were determined. Outstanding problems, obstacles and motivational instruments when implementing projects related to renovation of industrial areas were studied. On the basis of analysis of global experience and study of central problems, which arise when recovering industrial areas, we have developed methods of renovation of industrial facilities located within the limits of the city.
Arborsculpture theme park
Authors: Smolina O O
Published: November 2020

The high, uncontrolled, pace of urban development in the modern world inevitably leads to a decrease in the quality, representativeness and eco-sustainability of the recreational territories of populated areas. Renovation of the urbanized landscape is required, based on the preservation of the existing natural-territorial complexes of the city and on the principles of increasing the ecological and aesthetic characteristics of the natural-landscape elements of common areas. One of the possible ways to solve this problem can be the organization of systems of recreational and theme parks of the city. Given the prospects for the development of art of arbor sculpture, the theme park, which includes various architectural and art objects from tree and shrub species, would become one of the visited recreational spaces of the city, as well as contribute to the improvement of the ecological situation in the city and laid the foundations of an ecological worldview as an important component of culture human environment. The article discusses the US Arborsculpture Theme Park; Arborsculpture park in Australia, and in China, design features and principles for organizing Arborsculpture theme parks were defined. The results of the study can be applied in the formation of the Arborsculpture theme park in Russia.
Items and proposals related to the suburban area-planning within the big city sphere of influence
Authors: Pankeieva A , Viatkin K , Zavalniy O
Published: November 2020

The paper is dedicated to the major aspects of formation and functioning of the suburban areas within the big city sphere of influence. A set of questions was determined to be studied, in particular, definition of essence of the concept of “suburban area”, definitions of suburban area. The new trend of territorial development is the processes of population decentering from the central districts per city, which is related to the factors of development of the objects of social and economic support of the population, as well as a number of environmental problems. The paper proposes a model of suburban area territory planning within the big city sphere of influence, which allows managing and using territories of suburban area a more efficient way.
Industrial architecture of the Russian Far East in the context of the activities of the first architects and engineers
Authors: Bazilevich M E
Published: November 2020

This article deals with professional activities of the Far Eastern architects and engineers of the second half of the 19th – beginning of the 20th century, who worked in the region on the construction of industrial facilities for various purposes. Brief information about a number of specialists of various profiles working in the region is presented. The article considers the importance of the professional activities of local architects and engineers in the development of the mining industry, electrification and architecture of factory enterprises in the Far East of Russia. Here some features of the industrial architecture of the Far East, which depended on the specifics of the development of the region and its individual cities, are revealed.
Accessible environment as a means of ensuring the rights of persons with disabilities and as a task of the modern social state
Authors: Kurbatova S M , Aisner L Yu , Naumkina V V
Published: November 2020

The article deals with a number of issues related to the essence of the modern social state, its responsibilities to ensure the ability of the entire population, including people with special needs, to exercise their rights, participate in the life of society and the state. The importance of an accessible environment for ensuring the rights of persons with disabilities is noted. The role of urbanism in this process is shown. The concept and essence of urbanism are given, and a new task of urbanism to provide an accessible environment for residents with disabilities is revealed. The types of urbanism and the features of their implementation, specifically in the concept of a new task to create an accessible environment for people with disabilities, are considered. The conclusion about the formation of a new essence of urbanism as an institution of the social state and one of the means of realizing the rights of persons with limited abilities, including access to justice, is made.
Formation of comfortable urban environment in Russia based on international experience
Authors: Shleenko A V , Volkova S N , Sivak E E
Published: November 2020

In this paper we consider the formation of such an indicator of the urban environment as comfort. The aim of the study is to identify factors affecting this indicator and to draw up possible development paths in the conditions of our country. The main method used to study this topic is the analysis of received information on carrying out activities in foreign countries. As a result, it has been concluded that some projects can be implemented in Russia, but this topic requires more detailed study, as well as the development and implementation of a large number of projects in order to create a truly comfortable urban environment.
Environmental and economic assessment of the impact of oil and gas production on the state of landscape and botanical complexes in the Urals
Authors: Anhalt E.M. , Dobrodomova L.A. , Ryabinina Z.N.
Published: November 2020

The article presents the results of environmental and economic assessment of the impact of oil and gas industry objects on the state of landscape and botanical complexes in the Urals. Using the example of two oil and gas fields, the complex impact of the construction and operation of this type of facility is shown. The greatest disturbances to the land are caused by the construction and operation of industrial sites for integrated gas treatment plants and gas distribution networks, wells and service pipelines, crane assemblies and piston start-up and intake assemblies. Despite the fact that according to the point system, the impact of the enterprise on biocenoses is assessed as “weak negative,” the impact of oil and gas production facilities has led to a significant change in landscape and botanical complexes. In addition to changing the geochemical state of landscapes and the redistribution of natural geochemical cycles, a change in the ecological structure of species of edificators, a change in their physiological and morphological functions has been established. This impact directly affects the state of forest ecosystems, water conservation, water regulation, and absorption functions of the forest. Economic damage from the operation of oil and gas production facilities is 137042, 00 rubles.
Approach to substantiation of rational decisions on protection of fuel and energy complex objects to the impact of emergency explosions
Authors: Rybakov A V , Ivanov E V
Published: November 2020

The article presents in a formalized form the formulation of the problem of finding rational values of the parameters of the basic elements that make up the object of protection and external protection systems of the object (fuel and energy complex) from the impact of an air blast wave. A scientific and methodological apparatus for solving the problem of increasing the security of objects to the impact of an air blast wave in the conditions of restrictions on the parameters of the protection system and resources for the implementation of these measures is formulated. The proposed methodology is based on the security indicator, which makes it possible to interconnect both the intrinsic characteristics of the object and the most probable parameters of the damaging air blast waves. The solution to the optimization problem of delivering the values of the security indicator to the maximum is carried out using the gradient method. The rational parameters of the protection system obtained on the basis of the described approach will make it possible to plan measures to protect the objects of the fuel and energy complex against the impact of emergency explosions in conditions of restrictions on the cost of their implementation.
Project concepts for combined fire-extinguishing systems
Authors: Bukeikhanov N R , Gvozdkova S I , Butrimova E V
Published: November 2020

Based on the analysis of the functioning of the sprinkler fire-extinguishing system and the chemical reaction of the interaction of ammonia with water, the article considers the formation of an integrated fire extinguishing system to ensure the safety of processes and production plants where ammonia is used in the main and auxiliary processes. Analysis of the functioning of the system allows creating a project for a unified combined fire-extinguishing system based on an automatic sprinkler system and including the function of reacting and responding to the presence of ammonia vapors in the air of the production rooms. The paper proposes a supplement by the method of aggregation of automatic sprinkler systems with ammonia sensors, which, while maintaining the basic fire extinguishing function, can suppress emergency ammonia releases. As an example, the paper describes the formation of the project of a combined automatic sprinkler fire-extinguishing system with ammonia sensors and implements an additional function to ensure production safety in case of a possible ammonia emergency release.
Analysis of sources of dust and poisonal gases in the atmosphere formed as a result of explosions at quarries of the mining and integrated works
Authors: Zvyagintseva A V , Sazonova S A , Kulneva V V
Published: November 2020

In the process of developing a mineral deposit into the open pit atmosphere, dust and toxic gases are emitted from a number of sources. The intensity of such emissions depends on the properties and condition of the rock, weather conditions, engineering and development technology, the effectiveness of the application of methods for suppressing dust and harmful gases. In this regard, dust and gas contamination in the workplace can vary widely and have a negative impact on humans and the environment. The aim of the work is to analyze the processes of dust formation during blasting operations at the quarry of the mining and integrated works (for example, OAO Mikhailovsky in the city of Zheleznogorsk, Kursk Region). During mass explosions at the quarry of the mining and integrated works, the sources of dust and gas emissions were investigated, and a qualitative and quantitative assessment of their components was given.
The forecast of changes in the natural and technogenic conditions of the built-up territory on the example of the “Northern” district of the city of Kursk
Authors: Melkumov D N , Pogoreltseva E I , Khaustov V V
Published: November 2020

Today, the impact of urbanized territories on the geological and hydrogeological environment is of paramount importance. The studied section of the city of Kursk “Severny” district is intensively built up, therefore, it is characterized by a high degree of technogenic impact.. This article presents the results of engineering and geological surveys on the built-up territory of the Kursk city agglomeration. A hydroisogypsum map was built, the flow filtration rate was calculated, and it’s direction was determined. Protective measures were also proposed to prevent flooding of the built-up area. Statistical processing of the primary material was performed, followed by modeling of hydrogeological conditions in the software package ArcGis, Autocad..
Methodology for comprehensive assessment of atmospheric air state in populated areas
Authors: Ignatyev A V
Published: November 2020

The article describes the development of a methodology for a comprehensive assessment of the main sources of pollution and factors affecting the state of atmospheric air in populated areas. Its main distinguishing feature is that it takes under consideration the type of development of the selected area when assessing the impact of vehicles. Another important feature is the consideration of the estimated impact of new construction facilities, demolition of buildings and structures on populated areas, as well as the impact of unfavorable (dusty) areas as air pollution sources. The application of the proposed methodology makes it possible to conduct a comprehensive assessment of the main pollution sources and factors affecting the state of atmospheric air in the populated areas and categorize the city territory for making decisions on the possibility of locating new construction facilities in the urban area.
Devising an integrated procedure for assessing fragmentation effects
Authors: Yasyreva A N , Poluyan L V , Guryev E S
Published: November 2020

The paper presents a comparative analysis of Russian and foreign investigations in fragmentation effects and methods for assessing parameters of fragments formed by explosions of the equipment used for storing hazardous substances. Based on the results of the analysis, a conclusion was made as to the necessity of developing an integrated procedure for assessing fragmentation effects. The procedure is to be implemented as an ordered systematized algorithm comprising the analyzed methods for calculating individual parameters of fragments. The procedure devised was tested during the accident at the «Cosmo Oil» petroleum refinery in Japan, on March 11, 2011. Practical relevance of the procedure proposed is justified by the calculation results agreeing with the accident events.
Technological aspects of waste incinerator slag processing
Authors: Kolodezhnaya E V , Shadrunova I V , Garkavi M S
Published: November 2020

Incineration is a modern global trend in the disposal of combustible solid waste. When burning garbage, solid incombustible residues are formed – slags containing aluminum, copper, zinc and lead, in quantities many times higher than the maximum permissible concentrations of these elements in soils. The material composition and morphostructural features of the material were analyzed to determine possible areas of use and ways of utilization of waste incineration plant slags. As a result of microprobe researches forms of finding of ecologically controlled elements in slag are established. Test results of slag concentration by gravitational methods and results of magnetic separation are given. Based on the studies, a basic outline of slag product processing is proposed.