bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of methods for treatment of industrial wastewaters containing polycyclic aromatic hydrocarbons
Authors: Ozerova D A , Zolkin A L , Kalyakina V M , Koval Yu N , Shamina S V 
Published: October 2021

Abstract
Various methods and stages of industrial wastewater treatment from polycyclic aromatic hydrocarbons are estimated in the article. The development of technologies for the removal of toxic compounds from industrial wastewater is one of the key tasks for solving the problems of sustainable development. First of all, it is related to the fact that toxic compounds adversely affect the efficiency of wastewater treatment. They are not neutralized in natural processes, negatively affect the environment and, as a consequence the human health. Toxic compounds deplete nature’s ability to perform self purification and restoration of resources. One one of the most important resources is water. These toxic compounds include polycyclic aromatic hydrocarbons.
Analysis of hydroaeroionization efficiency in natural systems
Authors: Ramzaev A V , Garshin V I 
Published: October 2021

Abstract
The article deals with the problem of aeroionization in various technosphere facilities: in living quarters, study rooms, in natural environment and on the shop floor. The special attention is paid to the problem of hydroaeroionization due to its availability for implementation and potential for use for hygienic purposes. The authors carried out the experimental study in hydroaeroionization next to fountains and waterfalls. The measurements were taken with MAC-01 aeroion counter and were accompanied by the control of temperature, atmosphere pressure and relative air humidity in the area next to the controlled object. The variations in concentration of positive and negative ions in the air next to the controlled objects were less than 30%. The experimental results are consistent with the basic results of the study of balloelectric effect previously observed by other authors. The documents on development of a uniquely designed hydroaeroionizer were cited.
Standardization of food smoking production within the framework of environmental engineering
Authors: Kim E N , Glebova E V , Timchuk E G , Lapteva E P , Zayats E A 
Published: October 2021

Abstract
Currently, there is a fairly large number of methods and systems of production management that are successfully applied all over the world. Their use in the modern enterprise management is due to the fact that in its daily activities it must ensure not only the production of high-quality and safe products, but also take into account the environmental aspects of production, ensure the safety of workers, and look for ways to improve their production activities. This situation contributes to the convergence and unification of controls among different management systems. The development of a methodological approach to the standardization of production activities based on the integration of the requirements of general management systems, which is the basis for documenting the elements of these systems at the enterprise, undoubtedly corresponds to modern trends in production management.
Modern geoecological aspects of natural management in the mountains (on the example of the Karachay-Cherkess republic)
Authors: Adzhieva M M , Bayramkulova B O , Chomaeva M N , Urusova F A-A 
Published: October 2021

Abstract
The main provisions of geoecological monitoring in the organization of specially protected natural complexes on the territory of the Karachay-Cherkess Republic (KChR) are considered. It is proposed, taking into account the systemic and functional properties, to organize the «Western Prielbrusye» nature reserve. In modern conditions, the territory occupied by the projected complex “Western Elbrus” can be of great importance in order to preserve the natural and historical heritage. Modern aspects of specially protected natural areas organization, presented in the form of thematic modules for monitoring mountain landscapes, will improve the geoecology of the KChR, and will also provide an information basis for optimizing nature management.
Synthesis and research of fatty acids based on local secondary petroleum products
Authors: Khujakulov Kamoliddin , Mavlanov Babaxan , Fozilov Sadriddin , Niyozova Rano , Komilov Murodillo 
Published: October 2021

Abstract
The article analyzes the synthesis of higher fatty acids based on local secondary oil products of the Republic of Uzbekistan and the influence of various factors on their synthesis. The highest yield of fractional acids C10 - C17 during paraffin processing is observed as a result of paraffin oxidation with a boiling point of 260-350 °C. The fractional composition of the obtained fatty acids was analyzed by gas chromosome spectroscopy. The effect of the catalyst on the oxidation process on the duration of oxidation and the change in acid, ether and carbonyl numbers has been studied.
The Belogorsky reservoir hydraulic structures multifactor survey
Authors: Volosukhin Ya V , Kipkeeva P A , Borlakova F M , Chagarova L A , Chomayeva M N 
Published: October 2021

Abstract
The article analysed the long-term data from 2001-2015, presented by the hydraulic structures’ observation post, and the Belogorsk Reservoir and the 2016-2017 study conducted by the Hydraulic Structures Safety Engineering Consulting Center on multi-factor surveys and in-kind data analysis with their reliability assessment. As a hydraulic structures visual survey result, their structures and nodes, a defective statement is drawn up, which reflects defects, the hydraulic structures safe operation damages and violations According to the defective statement, as well as the facilities condition monitoring study results, it can be concluded that the hydraulic structures overall technical condition is assessed as satisfactory.
Cyber-physical and human control of technological process and equipment sensitive to failures
Authors: Korobeynikov A G , Shukalov A V , Zharinov I O , Zharinov O O 
Published: October 2021

Abstract
The cyber-physical production automatizing way being studied based on ergative component implementation in the control system to regulate technological processes and equipment. The ergative component has a function of human control correcting cyber-physical systems behavior when being controlled parameters deviation is detected. Human control is necessary to ensure the technological safety of the facility and is used in the event of equipment failure to prevent emergencies and man-made catastrophes. Human control commands are realized through the man information action over the regulator mathematical model (digital twin) controlling cyber-physical systems functionality from the virtual environment. The human control parameters are defined after the cyber-physical production current situation intellectual analysis engaging expert and advising systems and providing a quality increase of the item being manufactured because of control errors operative compensation. The automatic mode requires an ergative component of supervisor function excluding human direct interaction to the processes. The ergative component automatized mode requires target marking function done by a human, which results in several actions on the control object. The control loop human temporal absence possibility is reached by solving the task of the control function distribution between the technical system ergative part and the automatics. There is a scheme given of cyber-physical production control containing an ergative component.
Key factors reducing energy consumption in gas supply
Authors: Sharipov Kakhramon , Bozorov Jurabek 
Published: October 2021

Abstract
The article covers the key factor reducing energy consumption in gas-transport systems of Republic of Uzbekistan when transporting natural gas, increasing the efficiency of gas pipelines during operation and rational using of energy costs, solving a number of environmental problems by effectively cleaning the internal cavity of gas pipelines from various contaminants.
The Novotroitsk tailing dump influence on the arsenic and heavy metals accumulation in living organisms
Authors: Samburova M A , Safonov V A , Rylnikova M V , Radchenko D N 
Published: October 2021

Abstract
To determine the Novotroitsk gold-arsenic deposit dumps influence on the ecological situation, soil samples were taken from 4 wells drilled in the tailing dump territory. The Southern Urals species plant material typical Samples were collected within a 2 m radius from the wells. Wool, muscle tissue, liver, and kidney samples were taken from the European moles caught on the dump. The comparison objects were plants and animal tissues samples from background areas at a distance of > 15 km from the tailing dump. In the samples, the elements’ contents were determined, incl. arsenic and heavy metals by inductively coupled plasma mass spectrometry. Heavy metals increased content in the soil was found, and the average content of arsenic exceeded the maximum permissible concentration in soils by 1256 times. As and Hg large amounts were also found in plant samples. In the mole wool and tissues, the As accumulation was noted 181.3 - 273.9 times higher than the background values, Hg - 9.9 - 70.8 times and somewhat less pronounced - copper, lead and zinc. The research results are recommended to be taken into account when organizing reclamation and reclamation measures, as well as mining waste storage and disposal.
Development of the installation device pressing the volume of briquetted material and computer modeling of the technological process
Authors: Kobilov Khasan , Abdurakhmonov Olim , Sharipova Nazira , Adizova Madina 
Published: October 2021

Abstract
In this work, on the basis of systems thinking, intellectual methods for studying the pressing of briquette material are developed by constructing a mathematical and computer model of the material compaction process. The apparatus of the installation for studying the process of pressing fine coal fractions was developed. The first level of the pressing process deals with the process line for preparing and compacting the material. The second level of the hierarchy includes the devices of the technological line, including the device for pressing the material. The technique of carrying out the experiment in the apparatus of the material pressing plant is presented. On the basis of the main parameters revealed during the experiment of the process of pressing the briquette material, a mathematical model has been developed in the form of a system of equations. Using the developed mathematical model, the starting characteristic of the material compaction apparatus is studied, which characterizes the changes in the relative density of the compressed material. The change in the density of the briquette during the compaction of the material for the installation is equal to 0.25, while the density of the material increased from 600 to 724 kg / m3.
Features of sewage sludge dewatering process at the use offlocculant based on epichlorohydrinand dimethylamine
Authors: Asfandiyarova L R , Khakimova G V , Islamutdinova A A 
Published: October 2021

Abstract
The paper presents the results of experimental studies on the use of new synthesized reagent based on epichlorohydrin(chloropropylene oxide) and dimethylamine at the mechanical sludge dewatering unit; the effect of the residual flocculant content on sludge dewatering process is determined. In particular, it was found that the use of the proposed reagent led to increase in the efficiency of settling industrial effluents at the primary settling unit up to 95%; it had a beneficial effect on further wastewater treatment at biological treatment facilities, which led to 1.5-fold decrease in the consumption of flocculant. The use of this reagent made it possible to achieve a high degree of dewatering of sewage sludge and reduce the moisture content of the formed cake from 98 to 73%. Consequently, this allowedto significantlydecrease the volume of sludge further placed in sludge collectors and to reduce the amount of land allotted for its disposal.
Synthesis of the sulfated arabinogalactan tetramethylammonium complex
Authors: Kazachenko A S , Vasilyeva N Yu , Malyar Yu N , Miroshnikova A V 
Published: October 2021

Abstract
Sulfated polysaccharides, due to the presence of anionic groups, are able to form complexes with positively charged molecules. This work presents the results of obtaining complexes of the sulfated polysaccharide arabinogalactan with tetramethylammonium bromide. The resulting complex was shown to be soluble in water and methylene chloride. The introduction of tetramethylammonium bromide into the molecule of sulfated arabinogalactan has been proven by elemental analysis and FTIR spectroscopy.
The atmospheric nitrogen fixation thermodynamic probability study depending on the mixed mineral fertilizers composition
Authors: Podshivalova A K , Gogol E S 
Published: October 2021

Abstract
The mixed mineral fertilizers component composition effect on the binding atmospheric nitrogen thermodynamic probability in soils was studied. The studies were carried out by the physical and chemical modelling method based on the Selector software package. The systems following final indicators were calculated: the Gibbs system energy, the corresponding independent components chemical potentials, the solution components amount, the evolved gases amount, the solution pH, and the system redox potential. The results obtained in this work make it possible to conclude that the atmospheric nitrogen fixation in a nitrate ion form is thermodynamically resolved, and the problem lies in finding conditions conducive to this process implementation. It was revealed that the thermodynamic probability of atmospheric nitrogen oxidation depends both on the mineral fertilizer main component and on this component form, in particular, on its redox or acid-base characteristics. According to the modelling results, limestone as a mixed mineral fertilizers component contributes to a significant increase in the binding atmospheric nitrogen thermodynamic probability with the most oxidized form formation. The nitrogen presence in mixed mineral fertilizers in the most oxidized form (the nitrogen oxidation state is +5) can contribute to the conditions’ creation favorable for fixing atmospheric nitrogen. An increase in the urea and ammonium hydrate content in ammonia water, where nitrogen is in the maximum reduced oxidation state of -3, on the contrary, leads to a decrease in the atmospheric nitrogen binding thermodynamic probability to form oxide forms.
The effects of inactive toxins of escherichia coli on hematological parameters in animals
Authors: Tishchenko Alexander , Terekhov Vladimir , Emanuel Buabeng 
Published: October 2021

Abstract
Escherichiosis of calves and piglets is still a widespread infectious pathology on farms in different countries, including Russia, despite the vaccine prophylaxis of this disease. This fact testifies to the imperfection of present immunization means, the cause of which is discrepancy between antigenic composition of vaccines and etiological and pathogenetic factors responsible for the development of escherichiosis. In view of the above, the question of joint application of enterotoxins of Escherichia coli as a complex vaccine (anatoxin) becomes relevant. The question remains as to how they will affect the animal body after vaccine’s administration and what properties they will have, requiring special studies. In this regard, the aim of the work was to study the effect of the mixture of inactivated enterotoxins on the leukogram of animals. As a result of studies, it was found that after the introduction of anatoxin in rats, the primary response of the immune system was expressed in the form of an increase in the quantitative presence of physiologically mature neutrophils, followed by an increase in the number of immunocompetent cells – lymphocytes. The dose of injected anatoxin also mattered: the higher was the dose, the more pronounced were the changes in the leukogram, including the changes manifested by the increased presence of eosinophils in the bloodstream. Inactivated E. coli enterotoxins had no toxic and cytopathological effects when injected into the macroorganism; at the same time, they retained their antigenic and immunostimulatory properties, which allows them to be considered a candidate for a complex vaccine.
Assessment of mtDNA variability and phylogenetic relationships of Siberian local horse breeds
Authors: Khrabrova L A , Blohina N V , Chysyma R B , Bazaron B Z , Khamiruev T N 
Published: October 2021

AbstractLocal horse breeds of Siberia have universal economic characteristics and good adaptive qualities. The most valuable gene pool of these breeds has been formed over the centuries, and is of considerable interest for study at the molecular genetic level. The aim of our research was to study the sequence of the hypervariable region of the D-loop of mtDNA in 88 horses of the Buraytskaya, Zabaikalskaya, Tuvinckaya, and Yakutskaya breeds. Analysis of the sequenced D-loop sequence of 530 bp was performed using the Neighbor-Joining method in combination with bootstrap analysis in the MEGA7 program. When studying the polymorphism of the hypervariable region of the D-loop of mtDNA in local horses of Siberia, we identified 16 haplogroups: A, B, C, D, E, G, I, L, M, N, O, P, Q, and R, according to the modern classification. Three additional mtDNA haplogroups with a high level of bootstrap support (100%) were found in Buryatskaya horses. Sequenced fragments of the D-loop from 15471 to 16000 nucleotide positions included up to 113 polymorphic sites, mainly represented by transitions. The studied horse breeds differed among themselves in the structure of the mitochondrial genome and demonstrated a high level of diversity of haplotypes and haplogroups typical of the Mongolian population and other horses of Eurasia.
Fluctuating asymmetry of the lamina of Betula pendula Roth in the context of different cities and industrial load
Authors: Turmukhametova N V , Shadrina E G , Soldatova V Yu , Ivantsova E N 
Published: October 2021

Abstract
The material is collected on the territory and in the vicinity of four cities of the Russian Federation (RF) that differ in climatic conditions and anthropogenic load. A total of 20 ecotopes are distinguished, and 6000 leaves are analyzed. The fluctuating asymmetry (FA) of Betula pendula Roth was assessed by five morphometric features of the lamina. One-way and multi-way ANOVA and principal component analysis (PCA) have been performed. The effect of three climatic and four anthropogenic factors on FA value is discussed. None of the four regions demonstrates statistically significant inter-annual differences in integrated fluctuating asymmetry (IFA). On the territory of the cities, in most ecotopes IFA is significantly higher than in natural biotopes of the same region. The analysis of the association of IFA variability and climatic and anthropogenic parameters in different ecotopes has allowed us to reveal the influence of two groups of factors, which taken together account for 89% of the changes in environmental parameters. PCA has distributed the studied ecotopes along the gradient of the anthropogenic transformation of the environment and climatic features. The greatest contribution to the ecotope variability is made by climatic factors and anthropogenic development of the region. Generally, FA of Betula pendula rises along the gradient of increasing industrial load, which makes it possible to conduct comparative biomonitoring studies, both on the territory of cities and in posttechnogenic territories.
Impact of technogenic transformation of northern taiga land-scapes on mammalian population
Authors: Vol’pert Ya L , Shadrina E G , Danilov V A , Sidorov M M 
Published: October 2021

Abstract
Studies of the mammalian population in the area of operation of a large mining enterprise located in the northern taiga subzone of Yakutia have been conducted. A total of 2,334 cone-days and 3,000 trap-days are accumulated, post-hunting censuses of game species are taken. The mammalian fauna in the area affected by Udachninsky GOK is represented by 27 species. The negative impact of the mining enterprise on game species of mammals is manifested as an affected zone, for fur animals its width is 1.5–4.4 km, for the moose it is over 20 km. The study area is crossed by migration routes of the wild reindeer, and the presence of an industrial facility is a permanent threat to the well-being of the Lena-Olenek population of the species. The region is characterized by low abundance levels of small mammals even outside the anthropogenically affected areas. In technogenically transformed biotopes a decrease in capture rate and biodiversity parameters is registered, especially in open biotopes. In the forest stations forest species are being replaced by herbivorous inhabitants of open areas, which results in observable changes in the community structure. On the whole, the impact of the technogenic transformation of landscapes by the mining industry is manifested in redistribution of economically valuable species across the territory and a decrease in abundance and changes in the community structure of small mammals in the affected area.
Estimation of the state and dynamics of forests in the flood zone of the Nizhneboguchanskaya HPP based on satellite imagery
Authors: Slinkina O A 
Published: October 2021

Abstract
The paper investigates changes in the species structure of forests over a 20-year period (2001-2020) for the zone of the alleged flooding of the Nizhneboguchanskaya HPP and adjacent areas using geographic information systems and Earth remote sensing data. Areas of forest destroyed as a result of felling and fires were identified. The paper gives a quantitative estimation of these changes. A map of the dominant tree species for the study area was obtained. The satellite imagery of medium spatial resolution (Sentinel, Landsat) was used as the initial data, as well as information products Burned Area and Forest Cover Loss of the University of Maryland based on satellite data and field research data. It was found that the number of coniferous plantations in the study area decreases. On the contrary, the proportion of non-forested areas as well as deciduous species increases.
Socio-ecological problems of reindeer protection and rational use in Taimyr and Evenkia
Authors: Savchenko A P , Muravyov A N , Savchenko P A , Dubintsov S A , Isachenko A I 
Published: October 2021

Abstract
The original branch of nature management of the indigenous small-numbered peoples of the north is domestic reindeer herding. Despite all the natural prerequisites for the favourable development of this industry in the Arctic zone of the Krasnoyarsk Territory, reindeer husbandry is relatively poorly developed there. Historically, the fishing farms in Taimyr, for the production of wild reindeer of the largest Taimyr-Evenk population, are the main source of economic well-being of the indigenous population. Therefore, the study of the dynamics of this population and the ways of its rational use is a priority. This work is devoted to a review of the dynamics of the removal of wild reindeer of the Taimyr-Evenk population and the factors affecting it. In the context of the modern transformation of the Arctic ecosystems, a quite reasonable question arises: can commercial reindeer husbandry remain the guarantor of the economic stability of the indigenous and small-numbered peoples of Siberia as it was in the second half of the twentieth century?