bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research of dynamics of development of acreage in the Northern regions of the Russian Federation
Authors: Minina E S , Minin I L 
Published: December 2020

Abstract
The development of the indicator of sown areas is significant in modern conditions of agricultural development, especially in those regions that have poor climatic conditions. The use and expansion of sown areas, which is one of the factors of food security not only in the region, but also in the country as a whole, is considered for the sustainable development of territories with a predominance of cold climate. The sown area, being the main production fund of the agrarian economy, contributes to the development of the entire agro-industrial complex of the country, providing crop products not only for the food industry, but also livestock, creating additional opportunities for agricultural production in the region. The article identifies trends, which is an important step for predicting the development of the agricultural sector and food security of the country. The use of trend analysis is an important tool for determining changes in crop development trends. The indicators of the Republics of Karelia and Komi, the Nenets Autonomous District, the Arkhangelsk and Murmansk regions are investigated. The sown areas of regions of different sizes were studied not only by absolute growth indicators, but also relative and average indicators were calculated to improve coverage of the state of the areas not only in the previous study period from 1990 to 2019, but also in the medium-term development perspective for 2020-2025. Polynomial and exponential development models were used for the study, which indicates the non-linearity of the change in the fundamental means of agricultural development, which indicates a significant non-uniformity of the indicator.
Choosing the benchmark technology for cleaning poultry house emissions from malodorous substances
Authors: Nazarova A V , Sergienko O I , Molodkina N R , Efremova V Ye 
Published: December 2020

Abstract
The article considers the problem of unpleasant odor from poultry factories. It is proposed to use a system for standardizing the permissible impact of malodorous substances on the environment based on the best available technologies. The article assesses technologies in regards to their possible use at poultry houses. The appropriateness of using the selected benchmark technology to reduce the smell of poultry houses is confirmed; the environmental and economic effectiveness of such technology is taken into account.
Amino acid analysis of a semi-finished meat-containing product for gerodietic nutrition
Authors: Nesterenko A A , Savinov I V , Anichkina O A , Bobkova E Yu , Karpenko L Yu 
Published: December 2020

Abstract
In the gerodietic nutrition production technology there are a lot of questions that today remain unanswered. The development of recipe compositions that are fully balanced in terms of amino acids, macro- and microelements and vitamins based solely on the internal reserves of raw materials is a difficult task. As a result of our research we suggest the cutlet recipe with vitamins for gerodietic nutrition. The recipe composition includes chickpea flour, vegetables and amino acid additives - Amur grape seed flour. The proposed product meets the established requirements for gerodietic products.
Nitrogen balance in energy-carbohydrate-fed cows
Authors: Nigmatyanov A A , Pleshkov A V , Fedoseeva N A , Konovalova O A , Pristach N V , Kosilov V I 
Published: December 2020

Abstract
Enriching the diet of cows with nutrients and energy is an urgent task facing livestock specialists. In this regard, we propose to use a new type of feed in the diet of cows. For this purpose, using the software package, a ration balance was made for cows of black and motley breed. The differences were that different doses of the new “Tanrem” energy-carbohydrate feed were administered to the cows of the experimental groups. When analyzing the structure of the diet, it was found that in the pasture period a significant proportion falls on succulent feed, and in the stall - on rough and concentrated. It should be noted that both in the grazing and stalling periods, cows show a decrease in the proportion of succulent feeds with the introduction of the studied additive. Calculation of nitrogen balance showed that in all animals participating in the experiment, it was positive. In this case, nitrogen was best used from the accepted and from the digested cow of the three experimental groups, worst of all - control animals. The maximum effect was shown by the supplement at a dose of 700 g per day per animal. Further research will focus on the study of milk productivity and the quality of dairy products of cows.
Improving the energy efficiency of using solar panels
Authors: Nikitenko G V , Konoplev E V , Salpagarov V K , Danchenko I V , Masyutina G V 
Published: December 2020

Abstract
The article describes a method for increasing the efficiency of using solar panels when using a two-axis system for tracking the sun. A mathematical model of solar panel operation has been developed for the following applications: stationary installation of solar panels and the use of a two-axis solar tracker. The solar tracker has the ability to rotate the solar panel by the azimuth angle from 0 to 170 degrees, by the Zenith angle from 0 to 90 degrees. The paper presents a method for calculating power generation by solar panels using a solar tracker and a variant of stationary installation of solar panels. Plots of the PV panel as a function of time at stationary position of the solar panels and using a solar tracker. As a result of mathematical modeling, when using a solar tracker, compared with a stationary installation of a solar panel, electricity generation increases by 89.9% on the example of June 22, and by the example of December 22, the increase in electricity generation is 19.6 %. Using a solar tracker during the year increases the efficiency of electricity generation by solar panels by an average of 45-55%. Data on azimuth angles of sunrise and sunset, as well as the Zenith angle depending on the time of day for the 22nd day of each month are given in the table below. The results obtained are presented for coordinates: 45 degrees 3 minutes North latitude 41 degrees 59 minutes East longitude, which corresponds to the locality of the city of Stavropol in the Russian Federation.
Use of clarifying agents in technological process of kvass production
Authors: Osipova M V 
Published: December 2020

Abstract
In our country, the production of soft beverages is a popular direction of food industry. Fermented kvass, fruit and berry drink, lemonade, carbonated drinking and mineral water, and others are referred to non-alcoholic drinks. Currently, consumers increasingly prefer natural drinks consisting of traditional ingredients. One of the traditional drinks since ancient times revered in Russia, is bread kvas of natural fermentation. In the production of fermented drinks, modern technologies, the newest equipment, automated manufacturing processes are used, which allow intensifying technological plots for fermented kvass production using new methods. This allows optimizing stages of technological process and the entire production. The use of new methods for optimizing production processes allows reducing costs of production by reducing the time component of the technological process of kvass production.
Extraction of pectins from citrus fruits, their qualitative and quantitative analysis for application in the medical and food industries
Authors: Ostrozhenkova E G 
Published: December 2020

Abstract
The paper provides scientific substantiation and experimental confirmation of feasibility, prospects, and simplicity of production of high-quality purified pectin through preliminary multistage extraction of pectin-containing plant raw material, its acid hydrolysis and subsequent precipitation of pectin in the form of calcium salt. One of the most important physical and chemical properties of pectin substances is their ability to sorb and remove toxic substances from the body. These properties make pectin valuable for preventive nutrition, and as a biologically active food supplement.
Development of dairy beverage with functional properties on the basis of the whey with cereal culture
Authors: Pak V I , Suchkova E P 
Published: December 2020

Abstract
Many studies in the field of food hygiene have shown the lack of functional products in the diet, in particularly, poor dietary fibre intake is one of the factors contributing to the disease of civilization. The aim of the research is development a dairy beverage composition using a cereal culture. Starter culture has been selected and the impact of yeast and starter cultures on beverage properties has been experimentally investigated. The article discusses the use of wheat and barley grains. Beverage quality properties have been shown depending on quantity and method application of starter culture and grain adjunct quantity. The methods of research were carried out according to standard methods in the ITMO University laboratories. Results of research were production of dairy beverage with high biological value and dessert composition on the whey has been developed. It has become feasible while using germinated barley flour, a large mass fraction of dry substances is transferred to the beverage and amounts to 11.47%. While preparing adjunct additionally roasting process of cereal component was included for organoleptic properties improvement. Physical and chemical characteristics of the beverage are determined, biological value calculation is presented, which shows completeness of the protein component of the beverage. The beverage is enriched with a cereal component, because quarter the dietary fibres requirement is ensured, if the product is intaken in an amount of 250 grams.
Improving the performance of flax ribbon tedders
Authors: Pavlov S B 
Published: December 2020

Abstract
The paper discusses the technology of harvesting fiber flax and the role of flax tedding in this process. Despite its advantages, the existing flax tedders perform the technological process insufficiently, which ultimately leads to a lower yield of long fiber when processing the retted straw at the flax mill. We analyze the performance of flax ribbons tedders and suggest a new construction increasing the intensification and quality of flax tedding.
The introduction of lean production principles at OJSC “Velikonovgorodsky Myasnoy Dvor”
Authors: Petrova A S , Petrov D S 
Published: December 2020

Abstract
The concept of “Lean Production” is one of the most promising directions for the development of modern processing industries. In addition to the development of equipment and technologies, in terms of ensuring the quality and competitiveness of enterprises, we must not forget about the main factor for encouraging development and stable work – human resources. It is the competent management work with specialists that promotes the optimization of technological processes, reduces production costs, and promptly solves emerging problem situations with the development and implementation of a corrective action plan. The article considers the introduction of the lean system at one of the largest processing enterprises in the North-Western region of Russia – OJSC “Velikonogorodsky Myasnoy Dvor”, Veliky Novgorod. The company started implementing this concept only recently – in 2019 and has not yet managed to get significant financial results. At the moment, the company’s specialists are at the initial stages of the lean production system implementation - the types of losses that occur at the enterprise have already been identified, and measures to eliminate these losses have been worked out. During the new system’s implementation period, it was found that the proposals for a technical improvement received by the management from ordinary employees of the enterprise are difficult to implement in the production process, as this complex task requires quite a lot of time. Only 18% of all proposals for a technical improvement were put into production throughout the concept implementation period. However, even such a small number of implemented ideas brought the company significant economic profit, which makes it possible to call the lean system introduction at processing enterprises a promising task.
Obtaining chitosan polysaccharide from various natural raw materials and studying its metal-binding ability
Authors: Petukhova E A 
Published: December 2020

Abstract
The article considers the structure and properties of chitosan obtained from natural sources of plant and animal origin. The ability of chitosan to complex formation with copper ions is studied. The isotherm of ion sorption is given, and the quantitative values of the complexation process are calculated according to the classical theory and the theory of RCC.
The influence of chemical factors on the metal-binding capacity of non-starch polysaccharides
Authors: Petukhova E A 
Published: December 2020

Abstract
The article considers not only the possibility of non-starch polysaccharides to bind heavy metal ions, but the factors affecting this ability are determined. The ability of some non-starch polysaccharides to form complexes with heavy metal ions significantly depends on the structure, structure and external chemical factors. Considered polysaccharides are: pectin, chitosan and sodium alginate. Considered factors: temperature and pH.
Assessment of the place and role of agro-industrial complex exports in the region’s economy
Authors: Pritula O D , Semkiv L P 
Published: December 2020

Abstract
The development of the export potential and the formation of the export policy of the region are an important process, including domestic and foreign policy components. Improving the export activity of the subject is complicated by the presence of crisis phenomena, both in the economy and in the social sphere, similar processes are observed in the agricultural sector at the present stage. In this study, the authors paid considerable attention to the theoretical component of the topic, namely, they justified the importance of export operations as a strategic resource for the development of the territory, characterized the totality of factors determining the export potential of the territory, and updated the need for an analytical study of the composition, structure and dynamics of exports in modern conditions. The basis of the analytical study was the volume of agricultural exports of Novgorod region and its changes under the influence of the existing regional policy. Particular attention was paid to determining the place of the agricultural export policy at the federal and regional levels, its goals, objectives, activities and emerging risks in the implementation process, through analysis of the national project “International Cooperation and Export”, as well as federal and regional projects developed as part of national project. The study of the stated problems was also focused on the aspect related to assessing the degree of influence of export activity in the regional agro-industrial complex (AIC) on the economic and social indicators of the development of the territory, the proof of which was the confirmation of the relationship with the use of parametric methods.
Determination of the parameters of viscous fluid flowing in an annular gap during continuous hydrostatic extrusion
Authors: Prokhasko L S , Prokhasko Y G , Zalilov R V , Khaibrakhmanov R R , Vlasova V N , Kuchinskaya E V 
Published: December 2020

Abstract
The study of deformation of solids by high-pressure liquid (hydrostatic extrusion) is not only an interesting research problem, but an applied one. Hydrostatic extrusion method is currently widely used in various sectors of industry – from mechanical engineering to the food industry. This field of research seems relevant and promising. The paper presents the calculation results for some parameters of continuous hydrostatic extrusion of materials, shows graphs of the dependence of the axial stress in the billet on the total pressure drop along the length and graphs of the dependence of the total pressure drop along the length on the working fluid flow rate in the annular gap. The calculations were performed for the adiabatic fluid flow and for the flow with partial heat transfer. Analysis of the calculation results showed that for fixed flow rates of the working fluid and specified heat transfer conditions, maximum axial stresses can be obtained by optimal values taken for the ratios of the working chamber and the billet diameters.
Effectiveness of using enriched feed supplements in the floor growing of broiler chickens
Authors: Pchelina E A , Sevostyanova N N , Vinogradova O N , Vinnik L I , Danilovskikh M G 
Published: December 2020

Abstract
The article describes the experiment allowing to assess the expedience of using the anti-stress feed supplement Super Pre-starter in floor growing of chickens in the first week of life. The analysis of complete feeds and their comparison with the feed supplement was performed. Throughout the growing period, live weight gain was recorded; after slaughter, an analysis of anatomical indices and meat indices was carried out. The work carried out allows to conclude that the feed supplement does not lead to an increase in economic characteristics, and therefore does not have the desired economic effect.
Modeling the recipe composition of food products and recommendations for their use in individual nutrition
Authors: Sadovoy V V , Voblikova T V , Permyakov A V , Shchedrina T V , Morgunova A V , Stolyarova V V 
Published: December 2020

Abstract
To determine the body type of an individual according to the input parameters (age, gender, height and weight), a model is developed based on the statistical module classification trees. Based on the analysis of body type, labor intensity, gender, weight and nutritional structure for various categories of citizens, a neural network design of an algorithm for calculating the daily intake of protein, fat, dietary fiber and energy is carried out. The obtained data can serve as the basis for drawing up an individual nutritional diet. Taking into account the amino acid composition, organoleptic and economic indicators, a database is developed that allows to determine the optimal recipe of a meat product for individual nutrition. A structural-parametric model consisting of three stages (establishing the body type; determination of calorie content and requirements for protein and fat of animal origin; calculation of the energy value of the daily diet) is created in the Data Mining module to desing a products composition for individual nutrition.
Results of the study of long-term dynamics of microbiological and agro-chemical indexes of the fertility of the meadow-sod soils with the use of fertilization systems of different intensity (Sakhalin Island)
Authors: Samutenko L V , Slavkina V P , Fedorova L V 
Published: December 2020

Abstract
A decrease of the level of basic elements of plant nutrition in soils regardless of the use of different fertilizer systems was established after the 30-year monitoring. The soil acidity had quite noticeable changes. Conservation of soil acidity indicators at the level of slightly acidic and close to neutral for 5 years was ensured by a calcium-organic complex. The fertilizer system of 200 t per ha of PMC (action and long-term aftereffect) + 2NPК contributed to the increase in the number of pedotrophic microflora in the soil, indicating an increase in the number of labile forms of organic matter involved in the synthesis of humus. The most favourable microbiological regime with balanced processes of nitrogen and humus transformation was formed when lime was combined with organic and mineral fertilizer systems (Ca + 20 or 40 t / ha of manure + 2NPK).
Integration of research approaches to the organization of management pool training for the agricultural sector of the region
Authors: Semkiv L P , Kozina A M 
Published: December 2020

Abstract
At the present stage of development of agricultural production, the problem of providing managerial personnel exists in almost every region. Moreover, only an insignificant part of agricultural enterprises begins to accumulate experience in mutually beneficial cooperation with institutions of the professional training and retraining system. The authors paid considerable attention to the theoretical component of the topic in this study, namely, they justified the importance of agricultural personnel as a strategic resource for the development of the territory, gave a description of the totality of factors that determine the personnel potential, updated the need for an analytical study of the composition, structure and dynamics of the training of managerial personnel in modern conditions. The analytical study was based on the results of the preparation of a reserve of managerial personnel for the agro-industrial complex of the Novgorod region and its changes under the influence of the existing regional policy. Particular attention was paid to the study of the directions of the development of the personnel policy of the agro-industrial complex at the regional level, its goals, objectives, and measures by analyzing the implementation of the Law “On state support for the personnel potential of the agro-industrial complex of the Novgorod Region for 2008-2020”. The authors conclude that it is advisable to develop partnerships between agricultural educational institutions and leading enterprises of the agricultural sector based on the analysis of annual reports on the staffing of the agro-industrial complex in the Novgorod region, a survey of employers on satisfaction with the level of training of specialists and areas of partnership development. The relevance of research conducted in this direction is confirmed by the fact that the integration of research approaches (professionally-competent, adaptive-innovative and practice-oriented) in the organization of training the pool of managerial personnel for agricultural production, the use of modern technologies based on innovation in managerial fields of knowledge, increases the demand for young specialists and significantly improves the situation with staffing in the industry. The result of the joint work of agricultural educational institutions and employers has a positive impact on staff training and ensures the production of new generation managers, increases the level of training of specialists who are able to solve the strategic tasks of sustainable development of the industry.
Prospects of millet crops cultivation for forage purposes in the non-black earth zone North-West area
Authors: Shkodina E P , Balun O V 
Published: December 2020

Abstract
The article deals with the issues of barnyard millet, Turkestan millet, foxtail millet, and proso millet cultivation in the Novgorod region conditions. In the three research years, positive results were obtained for all studied crops and varieties. Regarding climatic zone conditions, the duration of the period before harvesting ripeness, calendar harvest dates, and the level of the studied crops varieties herbage yield were identified. The herbage analysis for the content of crude protein, fiber, available energy, and feed units was conducted. It was established that the proso millet Sputnik and Regent varieties and foxtail millet Stepnoy Mayak variety ripen for seeds in the Novgorod region. The introduction of new crops in crop rotation will provide an opportunity to expand forage crops range and to strengthen the Non-Black Earth Zone forage base.
The current state of wood and shrubby vegetation in the parks of Novgorod region and measures for their conservation
Authors: Smirnov I A , Nikonov M V 
Published: December 2020

Abstract
Park art as an element of cultural heritage is of great importance for the Novgorod land. The article presents the results of a survey of parks in Novgorod region. An assessment was made using the vital condition index. Measures are proposed to improve the condition of tree-shrub species.