bluuebunny/crossref_metadata_2025 huggingface dataset:
Visualization Research of STL Model Based on OpenGL Technology
Authors: Xu Wei , Jia Hongwei
Published: January 2020

With the OpenGL visualization as the background, some important attributes in the OpenGL application data table are processed by using the STL model visualization method. According to the advantages and disadvantages of OpenGL technology, it is rationally optimized. According to the computer display mode, the scale of visual graphics is designed. The OpenGL visualization data and the OpenGL STL model visualization method are reasonably combined, and the corresponding human-computer interaction technology is applied, which allows the user to customize the data according to the task goals.
Comparative Analysis of Properties of the Carbon-Based Coatings Obtained through Various PVD and CVD Deposition Methods
Authors: Korzhenko D V , Yurjev Y N , Emlin D R , Plotnikov S A , Vladimirov A B , Romanov I Y , Loginov B A , Loginov A B
Published: January 2020

The paper examines carbon 0.5-1µ thick coatings obtained through various physical vapour deposition and chemical vapour deposition methods on stainless steel and tool steel substrates. Their composition, morphology and physical properties have also been studied. The correlations of erosive wear resistance and H3/E2
ratio (where H is hardness and E is elastic modulus) have been identified for carbon coatings in regards to the production method. Ta-C carbon coatings demonstrate high resistance to dynamic loads with erosive wear in a sand-blast machine.
Development of a Software Package for Analysis of Heart Muscle Activity
Authors: Bezruckova O , Mishchenko A , Moroz K , Khanukaev M
Published: January 2020

Cardiac examinations are becoming increasingly common among all segments of the population. For a more accurate diagnosis, such tools as an electrocardiogram, ultrasound of the heart muscle, as well as computed tomography are used. To understand the processes that occur when a pathology occurs, it was decided to implement the mathematical and 3D models of the heart muscle that are interconnected. These models are individualized. The work of the heart is presented without a hemodynamic system, so the contraction processes are set using programmable spring pistons. The mathematical model was implemented in the MatLab software package. The paper describes the main problems that arose when creating a 3D model of the heart, and how to solve them. The development of the 3D model was carried out in the 3ds Max program, with the help of which not only the model was built, but also the parameterization of the model was considered according to the calculations. This experimental software aims to facilitate the diagnosis and detection of cardiac diseases.
Third-Order Low-Pass Filters for Limiting the Signal Spectrum at the Differential Input of the Analog/Digital Converters
Authors: Yu Denisenko D , Prokopenko N N , Butyrlagin N V
Published: January 2020

Two new architectures of the third-order low-pass filters (LPF) based on differential (Op-Amp) and differential difference amplifiers (DDA) with a paraphase output are compared. This architectures designed for practical use as anti-aliasing filters in analog-to-digital converters of sensor signals of various physical quantities. The basic equations of the developed LPF modifications that make possible to perform their parametric synthesis are given. The computer simulation results are presented, which show that the LPFs under consideration provide the guaranteed frequency response (FR) attenuation outside the bandwidth being implemented on Op-Amps by Analog Device (AD8132) and Texas Instruments (THS4131).
Synthesis of Si-Y Coatings on Nb in Fluoride-Chloride Molten Salts
Authors: Apisarov A P , Isakov A V , Chernyshev A A , Shmygalev A S , Vorotilov I A , Kashirtsev V V , Rahmanova O R , Zaikov Yu P
Published: January 2020

The preparation of multicomponent coatings based on silicon and yttrium on the niobium substrate was investigated. Y-Si/NbSi2 coatings on the Nb substrate by currentless deposition in molten salts were produced. The preparation of NbSi2 layers is carried out in NaF-NaCl-Na2SiF6 melts with the addition of Si powder. The preparation of Y-Si layers is carried out in NaCl-KCl-YF3 melts containing Y powder. Coating samples are studied using SEM. It is established that sequentially synthesized coatings are characterized by a two-layer structure. Using the EDS method, the chemical composition of the obtained layers is established: Y – 26.68; Nb – 62.55; Si – 10.76 wt. %. The oxidation test of the obtained coatings Y-Si/NbSi2 on Nb samples is performed. It is found that testing at 1200 ˚C for 2 hours leads to a mass loss of 62 mg/cm2·h.
Estimating and understanding crop yields with explainable deep learning in the Indian Wheat Belt
Authors: Wolanin Aleksandra , Mateo-García Gonzalo , Camps-Valls Gustau , Gómez-Chova Luis , Meroni Michele , Duveiller Gregory , Liangzhi You , Guanter Luis
Published: January 2020

Forecasting crop yields is becoming increasingly important under the current context in which food security needs to be ensured despite the challenges brought by climate change, an expanding world population accompanied by rising incomes, increasing soil erosion, and decreasing water resources. Temperature, radiation, water availability and other environmental conditions influence crop growth, development, and final grain yield in a complex nonlinear manner. Machine learning (ML) techniques, and deep learning (DL) methods in particular, can account for such nonlinear relations between yield and its covariates. However, they typically lack transparency and interpretability, since the way the predictions are derived is not directly evident. Yet, in the context of yield forecasting, understanding which are the underlying factors behind both a predicted loss or gain is of great relevance. Here, we explore how to benefit from the increased predictive performance of DL methods while maintaining the ability to interpret how the models achieve their results. To do so, we applied a deep neural network to multivariate time series of vegetation and meteorological data to estimate the wheat yield in the Indian Wheat Belt. Then, we visualized and analyzed the features and yield drivers learned by the model with the use of regression activation maps. The DL model outperformed other tested models (ridge regression and random forest) and facilitated the interpretation of variables and processes that lead to yield variability. The learned features were mostly related to the length of the growing season, and temperature and light conditions during this time. For example, our results showed that high yields in 2012 were associated with low temperatures accompanied by sunny conditions during the growing period. The proposed methodology can be used for other crops and regions in order to facilitate application of DL models in agriculture.
Elements of sustainable development of agricultural enterprises
Authors: Zinina O V , Olentsova J A
Published: January 2020

Rapidly changing modern economic conditions have highlighted the challenges of sustainable development of agricultural enterprises and its ability to resist adverse situations, which causes the need to ensure the reliability of each particular enterprise. Practice shows that the current problems cannot be solved without the formation of a mechanism that ensures sustainable development of the enterprise. In this article, the mechanism of sustainable development is considered as a set of different elements: organizational and managerial, technological, marketing, financial, investment, in relation to the external environment, internal factors, strategic objectives and current individual characteristics of the enterprise.
Biochemical aspects of obtaining yeast dough using a concentrate from germinated wheat grain
Authors: Kazina V V , Safronova T N , Ermosh L G
Published: January 2020

Sprouted wheat has an increased nutritional value and is well suited for enriching bakery products. Yeast dough from wheat flour is defined as an object of research. The process of testing was carried out using a steam convection apparatus. The technological processes occurring in a yeast dough with conducting concentrate from germinated wheat grain in the amount of 5-25% by weight of pre-ferment were studied. The study was carried out as part of a grant provided by the expert centre «PORA» for the project “Bread of increased nutritional value with sprouted wheat grain for the Arctic zone of the Russian Federation”. The article shows the effects of concentrate in an amount of 5-25% by weight of pre-ferment on the duration of fermentation, as well as on the organoleptic and physico-chemical characteristics of the finished semi-product. As a result, based on a comprehensive quality indicator, the recipe for yeast dough with a concentrate of germinated wheat grains in the amount of 10-20% by weight of the pre-ferment will be optimal by technology using a steam convection apparatus.
B2B sphere as an element of the exports potential development in the agricultural sector of the region
Authors: Zinina O V , Dalisova N A , Karaseva M V
Published: January 2020

A key driver for the B2B sector development in Russia is agriculture. The main problem is the transition from import substitution to export-oriented production. Today, Russian production is in great demand, as it has established itself as an organic and high-quality product. Krasnoyarsk krai is a region rich in its natural resources. The presence of high-quality raw materials has the opportunity to produce an environmentally friendly product especially appreciated today in the foreign market.
The role of mortality coefficients in planning and accounting for greenhouse gas emission reductions
Authors: Anuev E A , Vais A A , Martynova D O
Published: January 2020

The article presents tables of growth of fir plantations in the southern part of Siberia supplemented by carbon parameters. The dependences of the mortality coefficients on the stock and the number of trunks are considered. The obtained dependences will help determine what determines the relationship between the mortality coefficient and the stock and the number of trunks. Quantitative and qualitative characteristics of fir plantations of the South Siberian mountain forestry region considered in this paper will determine their production potential. The calculated coefficients will significantly reduce the uncertainty of carbon estimates, which will undoubtedly contribute to the development and implementation of forestry planning and practical measures for adaptation and adaptation to climate change. This will undoubtedly contribute to the reduction of greenhouse gas emissions, since the possibility and accuracy of taking into account the possibility of forests to bind and accumulate atmospheric carbon will increase.
Functional platelet activity in Dutch newborn calves
Authors: Vorobyeva N V , Medvedev I N
Published: January 2020

The hemostatic properties of platelets in cattle are physiologically very significant, as they affect the course of metabolic processes. This is especially significant in early ontogenesis and, apparently, strongly depends on the genetic characteristics of animals. The study was carried out on 37 Dutch calves, which were obtained from healthy cows after a normal pregnancy. All calves were examined and examined for 1-2 days, 3-4 days, 5-6 days, 7-8 days and 9-10 days of their ontogenesis. In the work were applied biochemical, hematological and statistical research methods. In the examined animals, during the neonatal phase, there was a tendency to inhibition of platelet aggregation in response to all inductors used. The number of platelet-discocytes in the blood of the examined Dutch calves in the first 10 days of their life experienced an upward trend. The amount of active platelet species they had decreased by 11.1%. The number of small and large platelet aggregates in the blood also decreased in them during the observation period. This was provided in the observed calves with a tendency to weaken the severity of synthesis in thromboxane platelets, a decrease in the level of adenosine phosphates in them and a weakening of their secretion. The level of platelet actin and myosin on the 1-2nd day in the examined calves was small and tended to decrease during the observation. Additional self-assembly of actin and myosin during platelet aggregation of the observed animals experienced some decrease during the observation period. It is clear that newborn calves of the Dutch breed are characterized by a high degree of functional sufficiency of platelets, creating physiologically favorable conditions for microcirculation processes. At the basis of these changes they have a small activity of the mechanisms that implement the hemostatic properties of platelets. Low intravascular activity of platelets in newborn calves of the Dutch breed is able to provide them with optimum perfusion and metabolic processes in all animal tissues that are necessary for the normal development of animals.
Multilayer polymer film as a factor of increasing the shelf life of poultry meat products
Authors: Ponomarev V Y , Yunusov E Sh , Nikitina E V , Khrundin D V , Ezhkova G O
Published: January 2020

The paper is aimed at studying the influence of new packaging materials with barrier properties on the quality indicators of semi-finished meat products from poultry meat in comparison with traditional packaging methods. It was found that the use of heat-shrink bags made of multilayer polymer film allows to increase the shelf life of semi-finished products by an average of 30%.
The impact of automation of agriculture on the digital economy
Authors: Guzueva E R , Vezirov T G , Beybalaeva D K , Batukaev A A , Chaplaev Kh G
Published: January 2020

The web, cell phones, and related innovations that encourage the accumulation, stockpiling, examination and sharing of information and data are changing numerous parts of life among an enormous what’s more, developing a portion of the total populace. Advanced advances with automation make data progressively accessible at all levels and purposes of the monetary procedure. This decreases exchange costs, encourages increasingly unpredictable hierarchical structures, grows to advertise openings and makes area progressively insignificant. These computerized advancements have been spreading quickly. By estimating economy-wide benefits, automation of different things for better benefits and outcomes is getting necessary day by day. Conventional theories are being updated through technology to save time and money both in an effective way. This research examines the development and impact of digital technology on various sectors of the digital economy. In particular, the study analysed the impact of digitalization of agriculture on the digital economy.
International trade and blockchain technologies: implications for practice and policy
Authors: Derindag O F , Yarygina I Z , Tsarev R Yu
Published: January 2020

International trade is an important aspect of business. Exchanging goods on a global scale allows states to produce and export goods that they are more efficient in and import the ones that they are not. As a result, countries reduce the cost of production, price of commodities, and expand their markets. Even so, international trade is a complex process that is facilitated by different financial, socio-political, and technological factors. The blockchain technology has revolutionized international trade and has the potential to continue doing so as this smart technology is still at its infancy. This paper analyzes the role and impacts of the blockchain in international trade, including the technology’s benefits, problems and challenges, and recommendations for improving its usefulness. The work finds that blockchain plays a significant role in international trade with numerous benefits. However, a few challenges should be addressed to ensure organizations in international trade benefits fully from blockchain technology.
Management system of grain production cluster of the region
Authors: Generalov I , Suslov S , Bazhenov R , Sibiryaev A , Firsova E
Published: January 2020

The purpose of the study is to develop an organizational model of the grain production cluster in the Nizhny Novgorod region, which will contribute to the formation of sustainable production and, as a result, increase the efficiency of the industry under study and strengthen food security in the region. The design of organizational structures was carried out by the method of analogies, which include the development of typical management structures of industrial and economic organizations and the definition of boundaries and conditions for their application. A cluster management system was developed, which consists of four blocks: a control block; production unit; processing and storage unit; block of education and science. Scientific novelty lies in the author’s approach to the development of a control system for the production of grain clusters. The proposed form will significantly increase the level of production sustainability among potential cluster members and strengthen food security in the Nizhny Novgorod region.
Automation of the drying process of agricultural raw materials to obtain products of high nutritional value
Authors: Altukhov I V , Bykova S M , Lukina G V , Ochirov V D
Published: January 2020

The purpose of these studies is to create an automated system for the drying process of agricultural raw materials. This system should be capable of providing biotechnological conditions for heating a single product to preserve especially valuable biological components in this product. Environmental problems of modern society determine the objective of functional nutrition of a person, as the basis of a healthy lifestyle. To solve this problem, it is necessary to obtain products of high nutritional value, with a maximum content of active substances. Each plant product contains not only vitamins and minerals, but also elements that determine its special value. During storage, these components are lost due to biological characteristics and storage conditions. To preserve them for a long period and create a product of high nutritional value, certain conservation methods must be used. Such methods include drying. Products dried in a special way are able to maintain up to 95% of their valuable indicators. An analysis of modern drying methods for plant raw materials showed that the pulse infrared-convection method more closely meets the requirements of biotechnological heating conditions and is therefore suitable for obtaining products of high nutritional value. This method has a sterilizing effect, which allows to increase the shelf life of finished products. The creation of an automated control system for pulse infrared - convection radiation made it possible to obtain products of high nutritional value for long-term storage.
Dynamic programming method in the tasks of optimal labor capital distribution programs
Authors: Zaitseva I V , Malafeyev O A , Kostyukov K I , Zubov A V , Bondarenko L A , Orlov V B , Yupatova K V
Published: January 2020

This article shows the application of the dynamic programming method to the tasks of the optimal distribution of labor resources by region. It discusses possible options for the formulation of this task, describes two models of the optimal distribution of labor resources, provides numerical examples.
Mechanized spraying of liquid meliorants
Authors: Vasilyev A A , Vasilyev S A , Shkilev N P
Published: January 2020

This article deals with the process of distribution of liquid meliorants on the surface of their application by means of a device for introducing liquid meliorants. The device itself is attached to the tillage working organ-the plane-cutting leg of the cultivator-deep-digger. In order to determine the quality of liquid spray and its distribution on the application surface, laboratory studies were conducted. The research was aimed at determining the optimal size of the hole diameters of the device to create a high-quality spray torch of the gas-liquid jet of meliorants. In the course of experiments, it was revealed that the rational diameters of the external (D) and internal (d) pipelines of the device for introducing liquid meliorants are D = 7 mm, d = 5 mm.
Analysis of the relationship between the level of digitalization and the level of quality of life: a regional aspect
Authors: Osipova I M , Naumova T A
Published: January 2020

In the article, digitalization is considered as the result of the efficient use of labor resources. In turn, for the full use of labor capital, it is necessary to create a certain level of people’s quality of life. Therefore, on the example of the Irkutsk region - a subject of the Russian Federation, a relationship was made between these characteristics. The level of quality of life was analyzed for five groups of indicators and each was compared with a growth rate of costs for information and communication technologies, which presumably indicates the level of access to ICT. The main directions for the sustainable development of digital technologies in the region are noted
Mathematical modeling of spicy herbs intensive drying with ultrasound
Authors: Verboloz E I , Ivanova M A , Demchenko V A , Moldovanov D , Evona N K
Published: January 2020

Ultrasound drying experiments of wicking and foam materials, spicy herbs in particular, with improved quality characteristics were carried out with sufficient efficiency of the created plant based on the steam convection oven. It was shown that drying optimization process can be preliminarily calculated using a theoretical model of ultrasonic exposure together with the supply of a heated drying agent to a temperature significantly lower than that accepted in industry (no more than 50-55 °C). Consequently, the drying time was reduced 2, as well as energy consumption level demonstrated 30% decrease.
Technological and constructor solutions for the design of silage trenches using CAD
Authors: Kostarev S N , Sereda T G , Kochetova O V , Sidorova K A
Published: January 2020

The features of the technological process of silage formation are described. A kinetic model of biochemical reactions in the preparation of silage juice was developed and investigated. The kinetic model was the ratio of the growth rate of the silage mass under the influence of a complex of factors on it: specific growth rate, concentration of microorganisms, the use of various additives. The models of emission processes occurring with the synthesis of methane and carbon dioxide are studied. A system of automated monitoring and control of the technological process of silage has been developed. The accounting and monitoring of greenhouse gases generated during silage decomposition is also an important environmental challenge. The design of silage trenches included calculations of the bearing capacity of the base and the stability of clay slopes. For the computer-aided design system, the AutoLISP software module of the AutoCAD environment was used. The developed computer-aided design system allows speeding up the construction of outline drawings with various geometric parameters of the silage trench.
The development of the educational and applied database in MS Access for selection and genetic research
Authors: Shevtsova L N , Bronov S A , Zobova N V , Shmeleva Z N , Paturinskiy A V
Published: January 2020

The article deals with the issues of the development and prospects of the database “Genetic formulae of spring barley in Eastern Siberia on hordein-coding loci” in MS Access use in the educational and production process. The stages of designing the database structure, selection and location of information in the database management system (DBMS) MS Access objects are given. The database presents the certification of the spring barley varieties of the Krasnoyarsk scientific-research agricultural institute selection according to genetic formulae, as well as genetic hordein formulae of Siberian modern varieties and local ancient forms.
The current state of Taimyr reindeer (Taimyr-Evenk population) and the probable reasons for its reduction
Authors: Savchenko A P , Soukhovolsky V G , Savchenko P A , Muravyov A N , Dubintsov S A , Кa;rpova N V , Tarasova O V
Published: January 2020

The North Siberian plain is the main fawning ground and summer feeding of wild reindeer of the Taimyr tundra population. After an explosive increase in numbers in 2000, when the population increased to 1 million of individuals, there is a decrease in the deer number. According to aerial surveys in 2017, it amounted to 404-442 thousand of individuals, in 2019, according to research staff members of the Taimyr Nature Reserves, it decreased to 250-280 thousand. Based on mathematical modeling and analysis of information obtained when marking 17 deer with collars with satellite transmitters, the paper considers version of the population response to environmental factors. Against the background of tundra “greening”, the growth of plant biomass, the length of deer stay in Taimyr did not increase, but, on the contrary, it decreased almost three times and averages 63 days in comparison with the 1960s. The questions solved in this paper consider the reasons why deer leave their former feeding grounds in the middle, or even at the beginning of August and if a significant reduction in the volume of deer hunting will lead to a completely opposite effect.
Dual effects of medicinal plant extracts on mature biofilms of Escherichia coli dependent on time of exposure
Authors: Samoilova Z Y , Smirnova G V , Oktyabrsky O N
Published: January 2020

Using a relatively simple experimental model with mature biofilms of Escherichia coli we showed that 1 h incubation with Vaccinium vitis-ideae, Betula pendula and Laminaria japonica extracts promoted biofilm dispersion inducing oxidative stress in the biofilms. However, a prolonged 3 h treatment completely changed mode of action of these extracts to strong prebiotic effects which were related to intracellular iron chelation.
Scientific framework for selecting explants of Iris L. genus for direct shoot regeneration
Authors: Tikhomirova L I
Published: January 2020

The explant type, its anatomical structure, and hormonal composition of culture media are crucial for selecting explants of Iris L. genus for direct shoot regeneration in tissue culture. In case of vegetative bud culture, antibiotics must be added to the agar medium with due regard to the antibiotic sensitivity of microflora. On MS medium (Murashige and Skoog 1962) supplemented with BA (6 µM) + NAA (5 µM) + L-glutamine and adenine sulfate (100 mg/l), the embryos of I. hybrida and I. sibirica developed into adventitious shoots and the multiplication coefficient of I. ensata increased in subsequent passages. In the budding phase, the rhachis and perianth tube maintained meristematic tissues and exhibited morphogenetic capacity. The fragments of generative organs of I. ensata, I. hybrid and I. sibirica formed the shoots on MS media containing BA (4–8 µM) and NAA (3–5 µM). The highest percentage of the shoots (100%) formed from the perianth tube explants had the structure similar to perianth lobes instead of the first leaf primordia. Further culture resulted in the formation of the shoots typical of these species of iris.
Flavonoid content and antioxidant activity of extracts of Polygonum Weyrichii Fr. Schmidt
Authors: Korovkina A V , Tsvetov N S , Nikolaev V G
Published: January 2020

This work presents the results of the use of maceration and ultrasonic extraction for the isolation of antioxidant substances, particularly flavonoids, from the Polygonum Weyrichii Fr. Schmidt growing in the Murmansk region. This plant is characterized by a high content of flavonoids and other antioxidant substances, and therefore may be of interest as a potential source of natural antioxidants. The efficiency of extracting flavonoids from various parts of plants (inflorescences and leaves) by maceration for 24 hours in 70% ethanol and using ultrasonic extraction for 1-5 hours at a temperature of 50 °C is compared. Antioxidant activity was evaluated for all extracts using the phosphomolybdate method. It was found that the maximum extraction of flavonoids is achieved by using ultrasonic extraction for 2 to 4 hours.
Mathematical simulation of dynamics for the temperature regime of the fire with the account of air flows motion according to free convection principle
Authors: Parshina A P , Kalach A V , Sumin V I , Cherepanov E A , Bokadarov S A , Gudkov M A
Published: January 2020

The article presents an original solution to the problem of predicting the dynamics of the temperature regime of a fire by means of a mathematical model of the main processes occurring in case of fire in a room. The simulation of the dynamics of heat processes occurring in fire conditions in a room equipped with aeration lights was carried out on the basis of the theory of convective heat exchange and gas dynamics. The obtained model allows determining the time when the critical value of the fire hazard factor (temperature) occurs taking into account the operation of the aeration lights.
Evaluation of the process of pelleting for pre-sowing treatment of flax seeds
Authors: Trefilov R A , Dorodov P V , Kasatkin V V , Kasatkina N Y , Litvinyuk A A
Published: January 2020

The paper presents a computational method that allows to predict the process of drainage of flax seeds with expanded perlite and biohumus for complex pre-sowing treatment with preliminary irradiation of seeds in the infrared range. From a methodological point of view, in the process of seed granulation, the efficiency depends on the adhesive bond arising in the process of rolling and dispersing. To solve this problem, the calculations of mathematical models of the process of granulation of seeds and the process of dispersion of perlite with biohumus on the surface of seeds were carried out in order to obtain a finished dragee with components of natural origin and improve the sowing qualities of treated seeds and the finished product. As a result of the developed models, analytical solutions of kinetic problems for the process of precipitation of particles of a draining mixture of perlite and biohumus on the surface of flax seeds are obtained. The described mathematical model allows to determine the technological parameters of the granulation process-particle size of the granulating mixture and granulation time, for the calculation of granulating components in the development of technological equipment for granulation. The approximation of the obtained data was made, which showed the prospects and effectiveness of the ongoing developments.
Ecotourism as a factor of the development of off-season tourism in southern Russia
Authors: Dorofeeva Anna A , Shamayeva Nelli , Nyurenberger Larisa B
Published: January 2020

This paper, provided by the authors, focuses on the prospects for the development of ecotourism in the southern Russia. In recent years, ecotourism is becoming increasingly common in the modern world. According to experts, in the past decade, ecotourism has developed three times faster than the tourism industry as a whole. The southern regions of Russia, for a number of objective and subjective reasons, have all the conditions for the development of tourism. They own vast environmental resources, the use of which, along with the dynamically growing demand for tourism services, will naturally lead to intensification of the development of infrastructure and the territorial organization of ecotourism.
Growth-stimulating role of chelates and organic acids
Authors: Volkova V A , Tsyganova N A , Voronkova N A , Tyumentseva E Yu , Voronkova M N
Published: January 2020

The effect of chelating forms of copper and zinc and organic acids on germination, germination energy, and morphometric parameters of Tríticum aestívum seedlings in an in vitro culture was experimentally established. The most effective growth regulators were identified, and their optimal doses for pre-sowing treatment of seeds were also established.
Modern technologies for using fish wastes in the production of collagen hydrolysates and functional beverages
Authors: Krasnova I S , Semenov G V , Zarubin N Yu
Published: January 2020

The research is devoted to the use of a cod skin hydrolysate as a component of citrus fruit beverages. It is demonstrated that the addition of a hydrolysate increases the content of protein in the beverage, slightly increases the viscosity of the beverage, and does not adversely affect its sensory characteristics. Hydrolysate is produced by enzymatic treatment of cod skin. The processing parameters allowing achieving the desired degree of destruction are determined. Physico-chemical parameters and sensory analyses of the obtained hydrolysate and its amino acid composition were analyzed. The influence of collagen hydrolysate on the physical and chemical composition of beverages, their structural and mechanical characteristics (pH and viscosity) and sensory analyses are estimated.
The occurrence of antagonists microorganisms to phytopathogenic fungi in consideration of various tillages
Authors: Puchkova E P , Gaas M V , Khizhnyak S V , Ivchenko V K , Polosina V A
Published: January 2020

The influence of different tillage methods (20-22 cm plowing) with applying nitrogen fertilizer and without it on the occurrence of antagonist microorganisms to phytopathogenic fungi Bipolaris sorokiniana was studied. Tillage with overturning soil (20-22 cm plowing) increased credibly (p<0.01) the frequency of occurrence of antagonist microorganisms in compare with No-till. The using nitrogen fertilizer (ammonium nitrate) didn’t affect the occurrence of antagonist microorganisms.
Comparison of granular and open cell foam filter models by numerical simulation
Authors: Soloveva O V
Published: January 2020

A comparison of granular and highly porous mesh filter models is based on the results of numerical simulation. We created models filters with an equal diameter of granules and cells. In order to avoid calculation errors associated with a random arrangement of cells, we averaged the results for five geometries. The values of the pressure drop obtained based on numerical simulation correlate well with the data obtained by the experimental Ergun equation. We calculated particle deposition efficiency and filter quality factor for models with equal porosity, and pressure drop value. Additionally, the filter quality factor for geometries with equal particle deposition efficiency was estimated. The calculation results show that it is advisable to compare the filter models by the value of the differential pressure.
Issue of agricultural lands exhaustion and land use planning and methodological approaches as solutions to this problem
Authors: Meretsky V A , Zhigulina T N , Kiseleva A O
Published: January 2020

The article considers one of the priority issues of global land management and land resources management – agricultural lands exhaustion. It was revealed that agricultural lands exhaustion processes are caused by the absence of a number of organizational and economic mechanism elements in land management, in terms of control over the quality condition and land fertility. In order to improve the agricultural land management system, there was proposed a mechanism composed of a combination of legal, land management and agroecological measures. The central element of the organizational and economic mechanism for monitoring the processes of agricultural lands exhaustion is the proposed methodological approach of assessing the level of agricultural lands exhaustion and subsequent estimation of monetary value of the economic damage caused by the identified processes of agricultural lands exhaustion. Economic calculations of the cost for soil fertility factors restoration up to their optimal parameters are composed of calculation of differential rent values in terms of fertility and location of the investigated and reference soil being capitalized taking into account the standard period of capitalization in agriculture. The monetary value of the economic damage caused by the identified processes of agricultural lands exhaustion is determined as the difference between the values of capitalized rent for the investigated and reference soil.
Optimization of control of chemical and technological processes of mixing and structuring multi-component elastomeric composites based on mathematical modeling methods
Authors: Kornyushko V F , Kuznetsov A S , Kolybanov K Yu , Burliaeva E V
Published: January 2020

The work is devoted to the actual problem of optimizing the control of complex chemical-technological processes of structuring multicomponent elastomeric composites. Optimization of production processes improves the quality of the products obtained, contributes to their intensification, as well as reducing the formation of defect. The article discusses the optimization of the process of structuring multicomponent elastomeric composites based on physicochemical representations and kinetic mathematical models. The basic relationships between model parameters and quantitative characteristics of the process of structuring elastomeric composites are given. It is shown that, along with the main characteristics of the structuring process, it is advisable to use new quantitative estimates - the amplitude and mode of the velocity curve. An optimization criterion is formulated - increasing the economic efficiency of production of products from elastomeric materials by increasing the percentage of obtaining high-quality products from raw materials while minimizing defect.
Synanthropization of small towns’ flora (Krasnoyarsk region)
Authors: Antipova E M , Antipova S V
Published: January 2020

The aim of this work is to identify the features of the synanthropic component of the flora of Sosnovoborsk, a satellite town of the regional center of Krasnoyarsk (Krasnoyarsk region). Based on the study of 7 model sections within the administrative boundaries of Sosnovoborsk, which differ in the phytocenotic diversity of the landscape and the characteristics of the anthropogenic load, the composition and structure of the synanthropic fraction of the flora: the share of apophytes and advents, hemerophiles and hemerophobes, synanthropic groups of species according to the degree of naturalization and certain activity criteria, were chosen. It was established that there was a prevalence of apophytes in the city flora (92%), where 54.2% of the total number of apophytes there were hemerophiles, which is generally typical of urban floras. Among minor advents (8.0%), colonophytes dominate (54.8% of the advent fraction). The basis of the synanthropic fraction of the flora of Sosnovoborsk (57.9% of the total flora) is rural species (according to I. Hensky) - 45.5%, consisting only of apophytes and found in all model sections of the city. At the present stage, a change in the floristic composition of Sosnovoborsk is due to urban-philic species (54.2%). The low adventization index (0.08) arises from the predominance of colonophytes (54.8% of the adventitious fraction), as well as the content of adventitious species in the composition of small satellites (58.1% of the adventitious fraction) and citizens (41,9 %).
Modeling of technological processes for processing vegetable raw materials
Authors: Grechishnikova N A , Strupan E A , Tipsina N N , Sizyh O A , Manasyan S K
Published: January 2020

To build a model of technological processes, linear and nonlinear regression equations are used to solve the problems of developing new food products. At the initial stage, the analysis was conducted of the study of the most real technical and technological economic system. As an object of study, depending on the purpose of the study, a particular enterprise, or group of enterprises, as well as an entire branch of the economy of a region or country, or perhaps the gross regional product of a certain subject of the Russian Federation or the country’s GDP, can be chosen. Gooseberry processing complex is considered as an example. The correctness of the choice of model type can be proved very conditionally, as well as from the point of view of the researcher conducting the analysis, his system of preferences regarding models and modeling methods. As an example, consider some conditional company VRM, for which we simulate the initial data on sales for the last 4 years.
Comparison and Analysis of Electromagnetic Characteristics of New Quadrupole Track Electromagnetic Launcher
Authors: Shu Tao , Chen Qingrong , Feng Gang , Liu Shaowei , Cui Mengyang
Published: January 2020

Electromagnetic railgun is the main research type of electromagnetic launcher. Researchers have found that the electromagnetic launcher with multipole track structure is capable of greatly improving the comprehensive performance of simple railgun. In this paper, a new quadrupole track electromagnetic launcher model is designed on the basis of simple railgun and quadrupole railgun. In order to fully analyze the electromagnetic characteristics of the model, the theoretical analysis of the structure is carried out at first. Then, under the same conditions as possible, the electromagnetic characteristics of it and the quadrupole railgun model are simulated and compared by using Ansys Maxwell simulation software. The results reveal that the new quadrupole track electromagnetic launcher model has the advantages of more concentrated magnetic field, more uniform armature current distribution and greater electromagnetic thrust.
Understanding of the Modeling Method in Additive Manufacturing
Authors: Chen Zhuojun
Published: January 2020

With the development of additive manufacturing, how to improve the efficiency and accuracy of manufacturing and prediction has attracted more and more attention. This paper focuses on three basic modeling methods, which are summarized according to the issue: empirical method, analytical method and numerical method. These methods are used differently based on practical circumstances. Besides, due to the improvement of computer computing power, machine learning and digital twin have also been applied to the study of additive manufacturing. Machine learning has a good performance in the prediction and optimization of process parameters, but the characteristic of machine learning that requires a lot of data leads to the increase of experimental cost. Digital twin does a good job in monitoring the condition of equipment. In addition, it can replace expensive and time-consuming physical experiments with inexpensive and efficient digital experiments, which can provide data for analysis. However, because of insufficient research, its application is still limited.
Research on location detection of railway track spike based on neural network
Authors: Lu Chen , Shen Yong
Published: January 2020

The spike is an important link between the sleeper and the track. It plays a vital role in the quality of the railway and the safe operation of the train. At present, in railway engineering, the position of spike can be obtained by adjusting the parameters of magnetic sensor and repeated measurement tests. This method is simple but requires a large amount of labour cost, so this research attempts to make the “automatic guidance computer system” of the tamping vehicle automatically detect the distance from the iron rail nail according to the driving position of the tamping vehicle by using the BP neural network and the VGG19 neural network, thereby improving the maintenance rate of railway lines and reduced labour cost have laid the foundation for a grand blueprint for unmanned tamping vehicle.
On the Influence of Platform Economy on Transformation and Upgrading of Chinese Traditional Manufacturing Industry - A Case Study of Red Collar Group
Authors: Song Hanyu , Liu Mengyun
Published: January 2020

The profitability of the traditional manufacturing industry is sluggish and fails to well adapt to the current trend of economic globalization. In the context of industry 4.0, it is imperative for the traditional manufacturing industry to transform and upgrade in an all-round way in the market-oriented and government-led environment. At this time, platform economy furnishes a good impetus for the transformation and upgrading of traditional manufacturing industry. Traditional manufacturing industry adapts to the needs of the external market environment through platform structure, adjusts factor input premised on dynamic changes in factor endowment, integrates scientific and technological revolution, and gradually cultivates competitiveness through continuous technological innovation, thereby achieving the transformation and upgrading of industry. In the background of conversion of era, this paper explores the innovation of traditional enterprises in the current historical background from the angle of evolution, attempting to reveal that platform economy helps traditional manufacturing enterprises to update their production methods, restructure their management structures and set up supply chain thinking, thereby pushing forward their transformation and upgrading. Taking the transformation and upgrading of Red Collar Group as an example, this paper analyzes the process of rapid learning, resource integration, innovation iteration, self-fission, and continuous evolution of the enterprise premised on platform economy, thereby proving the positive impetus of platform economy to the transformation of traditional manufacturing industry and testing its logical rationality. The research concludes that platform economy will become one of the significant strategic modes of transformation and upgrading of traditional manufacturing industry in China.
Research and Implementation of Indoor Location for Home Service Robot
Authors: Si Haifei , Hu Xingliu , Xu Li
Published: January 2020

At present, the trend of population aging in the world is becoming more and more serious. Many countries have implemented many measures to solve this problem. Various high-tech products to help the elderly and disabled have also entered the lives of the elderly. In order to ensure the safety of the elderly or disabled at home, this paper designs a room using SLAM algorithm of lidar sensor under ROS (Robot Operating System) environment. Wheeled home service robots with internal positioning, mapping and multi-point continuous navigation can collect and analyze environmental data such as temperature, humidity, smoke and rainwater outside the windows and broadcast them by voice while navigation. After many debugging, this design has realized the function of indoor autonomous navigation, and timely alarm and control of abnormal environmental data in the home.
Optimization design of gear reducer based on multi-attribute decision making and reliability sensitivity
Authors: Tong Cao , Tian Zhuang
Published: January 2020

In order to solve the complexity and implicitness of lightweight optimization of the gear reducer, this paper constructs a multi-objective reliability optimization mathematical model of the gear reducer. and to obtain multi-objective Pareto solution, artificial intelligence algorithm is used to optimize structural parameters. Then, through repeatedly changing the structural parameters of the reducer, the experimental simulation analysis is carried out to obtain the maximum working stress. Based on the idea of the weight reduction and miniaturization, the stress state and reliability index values under different structural parameters are compared and analyzed. In order to determine the optimal solution of structural parameters, multi-attribute decision theory is used to determine the solution. Finally, in order to effectively reveal the inherent variation of attribute values and decision results and quantitatively reflect the impact of various structural parameters on system reliability, reliability sensitivity analysis of the gear reducer is carried out by the response surface-Monte Carlo and DPS methods. Thereby, an optimized structure that meets the safety reliability and the appropriate economy is obtained, and this study produces a balanced and improved optimized design that is coordinated with cost, quality, volume, safety and stability.