bluuebunny/crossref_metadata_2025_split huggingface dataset:
Geospatial database for digitalization of agriculture of the Krasnoyarsk territory
Authors: Erunova M G , Shpedt A A , Trubnikov Y N , Yakubailik O E 
Published: August 2019

Abstract
The experience of implementation of GIS and web technologies for regional agriculture of the Krasnoyarsk territory is considered. The experimental agricultural enterprise “Minino”, located near the city of Krasnoyarsk, was chosen as a pilot project. For this agricultural enterprise, the comprehensive digital model using geographic information systems, remote sensing and web mapping data processing techniques and software is created. A geospatial database, which contains relevant and archival information about agricultural fields, varieties, crops, soil, particle size distribution, soil-forming rocks, terrain features, has been developed. A series of technological digital maps and cartograms have been created in which information on crop rotations and cultivated crops is concentrated. Archives of available multispectral satellite data of high spatial resolution on the considered territory are analyzed. As a result, a multi-layer electronic map of the agricultural enterprise was created, which contains all available information and can be used for modeling and forecasting crop yields, agricultural planning. The developed methods and software and technological solutions can become a methodological basis for a new generation of information and analytical systems and technologies to support management decisions in the agricultural sector.
Efficiency of barley foliar feeding under conditions of leached chernozem fertility heterogeneity
Authors: Ivchenko V K , Dubrovitsky V A , Sorokina O A , Lugantseva M V , Eremina E V 
Published: August 2019

Abstract
The article presents the results of studies conducted on the effectiveness of barley foliar feeding under field experiment conditions. The studies were carried out in a field stationary experiment in a grain-vapor-tilled crop rotation system with the following rotation: green-manured fallow - spring wheat - barley - maize - spring wheat. The object of the research was leached chernozem. Rotation cropping was sown on two degrees of ground fertilization – without fertilizer and with fertilizer. Urea (carbamide) was added as barley foliar feeding. Spring wheat that was sown on rape plant green-manured fallow served as the forecrop to the barley. Soil fertility heterogeneity was determined by examining barley crops during the tillering period (biomass scanning). Unmanned aerial vehicles manufactured by Krasaeroskan were used for this purpose. The results of NDVI index determination in the field experiment formed the basis for determining the mineral nitrogen fertilizer doses. Such doses were refined by tissue diagnostics. It was established that foliar feeding with mineral nitrogen fertilizers (urea) contributed to an increase in barley productivity.
Modeling of absorption process using neural networks
Authors: Kharitonova O S , Bronskaya V V , Ignashina T V , Al-Muntaser Ameen A , Khairullina L E 
Published: August 2019

Abstract
An artificial neural multi-layer network has been developed for predicting the mass transfer coefficients in the liquid and gas phases for the gas absorption (CO2) from the air using an absorbent - water. For the development of neural network the unobservable parameters of the packed absorber were calculated. The obtained results can be used to model an extensive class of chemical engineering processes with the possibility of formalizing the calculation procedures.
Numerical simulation of supercavitation in the constrained flow
Authors: Yu Radzyuk A , Kulagin V A , Istyagina E B , Pyanykh T A , Kolosov M V 
Published: August 2019

Abstract
Mathematical modeling of the liquids movement, accompanied by the phenomenon of cavitation, is developing intensively, but the super-cavitational flow regime has a number of features compared to the localization of the cavity on the streamlined body. The article presents a general approach to the mathematical modeling of the supercavitational flow, describes the used mathematical model. The geometry selected for modeling, the initial parameters and the physical constants characterizing the process are given. Using ANSYS CFX, the flow around a cone installed in a round tube at different flow velocities was calculated. The analysis of the obtained results was carried out, and directions for further research were outlined.
Monitoring and certification of agricultural land by creating a bank of information resources for the rational use of steppe landscapes of the Western Ciscaucasia
Authors: Melnik Marina S , Podkolzin Oleg A , Yu Perov Alexander , Odintsov Stanislav V 
Published: August 2019

Abstract
The improvement of economic efficiency and reproduction of soil fertility require today a comprehensive study, qualitative characteristics, quantitative and cost assessment of the land. A certain imbalance exists today in the use of land and the preservation of soil fertility. Certification contributes to the rapid development and adoption of management decisions, as well as operational monitoring of agricultural landscapes. The subject of the research is the main integral indicators of soil fertility and degradation processes of agroecological monitoring in the system of land evaluation procedures within the steppe landscapes of the Western Ciscaucasia. The authors have identified the need for a number of measures: to analyze the structure of the lands of administrative districts, which are part of the IV accumulative plain landscape of the Chelbas and Beisug rivers basins with plowed steppes in 2017, to monitor the main integrated indicators of soil fertility of agricultural land steppe landscapes of the Western Ciscaucasia, to substantiate the approval of form “Passport of quality of soils of Krasnodar territory» by legislation.
Test methods for integrated experimental prototypes of wireless charging of implants’ power supply sources and implantable biotelemetric system
Authors: Rabin A V , Petrushevskaya A A 
Published: August 2019

Abstract
This article discusses the well-known inductive wireless power transfer for implantable devices. These devices are intended for use in the area of medicine, pharmacology and human physiology. Implantable small-sized devices are introduced into the body surgically and autonomously monitor and control the functional state of individual organs and systems. However, the currently existing implantable devices must be periodically removed from the body of the object of observation to replace the source of energy, and then reinstall into the body. Developed by the authors wireless charger for transcutaneous energy supply of implantable modules automatically adjusts the power of the electromagnetic field. It gives the possibility to use either non-rechargeable power sources or batteries charged via wireless power transmission. The integration scheme of experimental prototypes of wireless charging device and implantable biotelemetric system is considered. The methodology of three consistent tests of integrated charging device and implantable biotelemetric system is discussed. The tests’ results verified the compliance of the specified parameters with the requirements of the technical specification.
Synthesis of energy-efficient agriculture electric drives control system
Authors: Bukhanov S S , Gryzlov A A , Grigorev M A 
Published: August 2019

Abstract
In this paper the capabilities of the agriculture electric drive with rectangular shape of the phase current were analyzed, the level of pulsations of the electromagnetic torque in synchronous reluctance electric drives was found, the synthesis of the electric drive control system was considered, the characteristics of the electric drive under different control laws were compared. It is found that the use of high-speed current circuits (cutoff frequency = > 200 rad/s) can significantly suppress the level of pulsations of the electromagnetic torque. It is shown that the use of flexible positive current feedback in switching phase currents can be considered as an additional opportunity to improve the performance of the current control circuit, as well as in conjunction with the previous method for suppressing torque pulsations in both static and dynamic modes.
Highly reliable power sources for objects of agriculture and automation of the stages of their adjustment
Authors: Zhuravleva L A , Kornienko M N , Fediakov V V 
Published: August 2019

Abstract
The technique of experimental research of static, dynamic and thermal characteristics of elements of automation systems based on the use of traditional equipment and special algorithms of information processing is developed. The reliability of information determination is increased by the use of the method of synchronous signal detection in determining the frequency characteristics of the studied elements of automation. An experimental study of the input and output signals of the amplifier module for two modes of operation was carried out, which confirmed the prospects for using an adaptive power supply for the output stages of the amplifier module when working with non-stationary loads. The method of setting up two modes of operation of the elements of the control system for agricultural facilities with non-stationary power sources, including the choice of parameters for the elements of the system, the experimental determination of its parameters and the choice of parameters for corrective relationships, has been proposed.
The study of oxide films on the surface of a piston of aluminum alloy after micro-arc oxidation
Authors: Likhanov V A , Skryabin M L 
Published: August 2019

Abstract
One of the promising methods of surface hardening of piston aluminum alloys – micro-arc oxidation-is considered in the paper. This type of coating, formed under the influence of micro discharge in the electrolyte solution, is fundamentally different from the base metal. A qualitative analysis of the piston alloy on the energy dispersion x-ray fluorescence spectrometer was carried out for a more accurate assignment of the oxidation parameters, which allowed the most accurate determination of the chemical composition of the alloy. Micro-arc oxidation of the pistons was carried out at the experimental laboratory facility, which allowed to regulate the total density of the ion current II and the quantitative ratio of cathode and anode currents IK/IA in a wide range, which favorably affected the quality of the oxide layers. The mechanism of formation of crystalline inclusions and high-temperature structures depending on the ion current density in time is also described. The conditions of formation of oxide films on the surface of piston alloys based on the physical-geometric Keller model are described and their characteristic features are revealed. The technique of investigation of microstructures of thin films is considered, its characteristic features are described. The obtained microstructures of piston aluminum alloys after micro-arc oxidation are presented. Mechanisms of formation of oxide layers are considered taking into account the influence of alloying elements of piston aluminum alloys. Microphotographs of individual porous cells obtained with the help of an electronic scanning microscope are also shown and analyzed. The basic properties that should have a piston of aluminum alloys: heat resistance, corrosion resistance and abrasive wear. Methods of their research are described. The complex analysis of the received results is carried out. The conclusion about the prospects of these oxide coatings is made.
Compression testing of soils by utilizing method of constant rate of loading
Authors: Dzhangarov A I , Guzueva E R , Akhmetova H A , Chaplaev H G , Potapova N V 
Published: August 2019

Abstract
The work outlines one of the most frequently encountered methods of soil compression testing - the method of constant rate of loading (CRL). Compression tests, in fact, are laboratory tests to determine the deformation characteristics of soils. There are a large number of methods that differ in the approach to the study of soils, the duration of the test, etc. The most reliable results, which are close to those obtained in practice, are provided by the so-called method of constant rate of loading as was mentioned before. However, it also has its drawbacks - the time that is spent on researching the properties of the soil. It usually takes about two weeks. In order to optimize this method, a software product was created that relies on the developed mathematical apparatus and allows you to significantly speed up the data processing process and build a forecast regarding soil characteristics.
Estimation of extraction efficiency of salidroside from Rhodiola rosea using deep eutectic solvents
Authors: Tsvetov N S , Mryasova K P , Shavarda A L , Nikolaev V G 
Published: August 2019

Abstract
This article is devoted to the new possibilities of extraction of biologically active substances (BAS) from Rhodiola rosea L. This plant contains such BAS as salidroside, rhodiosin, rosavin, rosarin, rosin, which are glycosides of cinnamon alcohol and tyrosol. Pharmacological effects Rhodiola rosea include adaptogenic and stress- protective, cardioprotective, antioxidant effect, stimulating the central nervous system, anti-fatigue, antidepressive, anxiolytic, endocrine activity normalizing and life-span increasing effects. One of the promising methods for extracting biologically active substances is extraction using deep eutectic solvents. The aim of this work is to assess the applicability of three deep eutectic solvents for the extraction of biologically active substances, in particular, salidroside, from Rhodiola rosea. In this work the maceration method is used to obtain extracts and the HPLC method is used for the semi-quantitative analysis of the salidroside content. It has been established that the most suitable extractant for salidroside extraction is a mixture of choline chloride + malonic acid + methanol. Extractants containing choline chloride and urea, in contrast, do not extract salidroside from Rhodiola rosea.
Extraction of cinnamic alcohol from Rhodiola rosea using deep eutectic solvents
Authors: Tsvetov N S , Mryasova K P , Korotkova G V , Asming S V , Nikolaev V G 
Published: August 2019

Abstract
The aim of this study is to assess the possibility of using deep eutectic solvents (DES) for the extraction of components of essential oils and biologically active substances from the rhizomes of Rhodiola rosea. Cinnamic alcohol was obtained obtained in aqueous, methanol, ethanol and DES extracts by maceration. Content of the alcohol in extracts was assessed. For preparation of DES, choline chloride was used as an hydrogen bonds acceptor, and malonic acid and glycerol were used as hydrogen bonds donors. Analysis was performed by gas chromatography-mass spectrometry using a GCMS-QP2010 instrument (SHIMADZU) with NIST 27.147 databases. It has been established that the mixture of choline chloride + glycerin + water extracts more than 2 times more cinnamic alcohol than ethanol, and more than 5 times more than methanol.
Aberdeen Angus cattle breed in Russia: prevention of the genetic defects and evaluation of the risk of their spread by transferring from parents to offspring
Authors: Konovalova E N , Volkova V V , Romanenkova O S 
Published: August 2019

Abstract
The article highlighted the problem of genetic defect of Aberdeen Angus cattle. Previous investigation showed the presence in Russian population of Aberdeen Angus cattle of animals carrying in their genotypes the mutant alleles associated with Arthrogriposis multiplex, Developmental Duplication and Osteopetrosis. In some populations, the frequencies of the animals-genetic defects carriers were sufficiently high. The aim of the study was to evaluate the risk of spread of the mutant alleles causing the genetic disorders by their transfer from parents to offspring under absence of control over the genetic defects in the farm, breeding Aberdeen Angus cattle. The analysis has shown increasing of the frequency of animals-Arthrogriposis multiplex carriers about on 10.3% in the population of heifers comparing with population of their mothers and the raising of the mutant allele frequency in six times in F2 generation.
The effect of extraction of labile organic fractions on surface properties of pyrochars
Authors: Smirnova E V , Giniyatullin K G , Okunev R V , Guseva I A , Gordeeva K A 
Published: August 2019

Abstract
The changes in the properties of pyrochars and the possibility of their use as soil meliorants were evaluated. Pyrochars obtained from linden residues at fixed pyrolysis temperatures of 250°C, 450°C and 650°C and under isothermal conditions in the temperature range from 450°C to 650°C have been studied. Their labile fractions of organic matter extracted with Na4P2O7-NaOH solution and hot water was investigated by UV-VIS spectrometry and after extraction cation exchange capacity of pyrochars was characterized. For the qualitative characteristics of the selected fractions, ratio of the absorption of a colored solution of organic matter at λ = 254 nm to the content of organic carbon was calculated. It was concluded, that the pool of water-soluble and alkaline-soluble organic matter of pyrochars is a mixture of organic compounds of uncertain qualitative composition, whose properties are determined by the pyrolysis temperature. Extraction of this water-soluble and alkaline-soluble organic matter leads to a change in cation exchange capacity of pyrochars.
Universal biotechnological medium for sperm dilution during poultry artificial insemination
Authors: Roiter Ya S , Konopleva A P 
Published: August 2019

Abstract
The aim of the research was to develop a universal biotechnological environment for diluting sperm during artificial insemination of birds. The creation of the medium was carried out in 4 stages. The first stage is the selection of environmental components of their influence on the survival of sperm cells in vitro. During the second one, the combination of components and their effect on sperm of different species of birds was studied. Subsequently, the effect of the complex of combinations of ingredients on the preservation of sperm motility was determined upon dilution of the ejaculates of roosters, turkeys, cesars, drakes, husaks during in vitro storage. Ejaculates of males of the studied species in quality close to the average species value were used. During the experiments, the ratio of chemical components was determined, which ensured the optimal value of the concentration of hydrogen ions when the medium was diluted in distilled water. The permissible pH of the medium has been established; it must be neutral or slightly alkaline. The pH was adjusted by injecting sodium acetate. The created medium is stored in a dry state for up to 2 months at a temperature of + 6–8 ° C in hermetically sealed containers. Sperm diluted with this medium contributes to maintaining the high fertilizing ability of rooster sperm for up to 24 hours, for turkeys and cesaries for 7 hours, for waterfowl for 3-4 hours.
Heavy metal level in the ecosystem components of small rivers in the Amur-Zeya Plain agricultural landscape
Authors: Pakusina A P , Platonova T P , Lobarev S A 
Published: August 2019

Abstract
The article considers the results of the heavy metals determination in the components of ecosystems of small rivers (water, sediments, macrophytes) of the Amur-Zeya Plain agricultural landscape. In the waters of small rivers, a high level of iron, zinc and copper is due to the natural factor. The lead and cadmium level in the waters of small rivers did not exceed the maximum permissible concentration (MPC). The level of heavy metals in bottom silt of small rivers corresponded to background values. Excessive concentrations of cadmium, manganese, and lead are characteristic of aquatic moss and rooting hydrophytes. The results of studying the level of heavy metals in the components of aquatic ecosystems of the Amur-Zeya Plain are the basis for further study of the technogenic load on small rivers of the agricultural landscape.
Formation of hard ticks’ biotopes on urban territories
Authors: Belimenko V V , Khristianovsky P I , Novosad E V , Gulyukin A M 
Published: August 2019

Abstract
On territory of many cities and towns in the Russian Federation, new stable biotopes of hard ticks have been formed up and being occurred constantly. these ticks eat animal and human blood and are agent transmitters of many transmissive tick-born infectious and invasion diseases. They are very stable towards adverse factors of nature environment. The article represents knowledge about risk-oriented monitoring and ixodid tick biotope formation on urban territories. Classification and characteristics of urban territories of contemporary city versus the conditions of ixodid ticks’ biotopes formation and, hence, of focuses of tick diseases are given. For ixodid biotopes eradication in the cities, tick-spread maps should be arranged on the base of geoinformational systems, GIS, and pursue, on their basis, target treatment of greenery with acaricides. GIS can be considered as a research method that might be applied for risk management in retrospective and prognosticating.
Transmission of porcine circovirus genotype type 2 (PCV2) in Russia and genotype association (PCV2d) with porcine dermatitis and nephropathy syndrome (PDNS)
Authors: Raev S A , Yuzhakov A G , Alekseev K P , Kostina L V , Gulyukin M I , Stepanova T V , Zaberezhniy A D , Aliper T I 
Published: August 2019

Abstract
The study of the prevalence of PCV2 genotypes in pig farms of the Russian Federation is presented. It is shown that currently the genotype PCV2d is the most common, which is important in connection with the assumed probability of lack of the immune response to PCV-2d induced by PCV-2a-based vaccines. The main goal of this investigation was to conduct monitoring studies for DNA, immunoglobulins IgG and IgM classes to PCV2 by the polymerase chain reaction (PCR) and enzyme-linked immunosorbent assay (ELISA) assays, respectively, as well as identification of the PCV2 genotype by sequencing of pigs of different ages were carried out at one of the Russian industrial pig farms with PCVAD (Porcine circovirus associated disease) outbreaks that used PCV2a vaccination. The data of this field observation indicates that PCV2d – is a major genotype in Russia. Additionally, it was shown that PCV2d prevalence in the farm correlates with clinical manifestation of PCVAD.
Development of a test system for detecting bovine adenovirus DNA based on polymerase chain reaction
Authors: Shemel’kova G O , Yuzhakov A G , Zaberezhny A D , Shemel’kov E V , Aliper T I 
Published: August 2019

Abstract
The paper presents the results of the development of polymerase chain reaction (PCR) test systems for detecting the DNA of bovine adenovirus. Due the large number of classified types of bovine adenoviruses included in two separate genera of Mastadenovirus and Atadenovirus, a nested PCR variant was chosen when creating a test system using a common external pair of primers and internal primers specific for the Mastadenovirus and Atadenovirus genera. In the study of field samples from calves with a characteristic clinical picture using the developed test system, the circulation of different strains of bovine adenovirus, which are representatives of these genera, was established. Selective studies showed the presence of 1, 3, 6, and 8 subtypes of bovine adenovirus among positive samples.