Nowadays in Russia, there is a problem of utilization
of vehicles. A system of recycling of agricultural machinery
in Russia is absent. In the article we present
an organizational-technological complex of works for
utilization of agricultural machinery
In the current economic situation, the
developing of cattle breeding is taking on
special significance. It is well known that the
effective way to develop cattle breeding is to
increase the total number of efficient livestock.
The numerous researches show that the high
concentrated fodder premix diet gives the
highest effect in increasing animal indicators [1,
2, 3]. Traditionally, the premix is a powder
mass, which should be added into the mixture
of grain components. Exact following the recipe
of prepared fodder allows the maximum usage
of forage potential of the concentrate
components [4, 5, 6, 7]. In view of the
foregoing, food enrichers have special actuality
in making high concentrated fodder [8, 9, 10].
The usage of differential Fokker – Planck
equation systems allows determining the laws
of the mixing process of various granulated
products. As a result, it becomes possible to
optimize the technological process of the mixerenrichers
of concentrated feed so that the
resulting mixture of feed would have high
quality and technological characteristics. At the
same time the duration of sewer-enricher’s
work and, as a consequence, the energy
intensity of the technological process would
accept the minimum possible values [11-16].
The given theoretical approach is based on the
consideration of the motion of an individual
particle contained in a loose grain mass (phase).
Concerning this, it is necessary to accept a
number of assumptions about making effort to
the feed particles, and the velocity vectors of its
initial motion should be taken into account.
Taking into account the complexity of the
mathematically derived differential equation, its
literal analytical solution seems very difficult.
Therefore, the first step of the solution is aimed at the obtaining the non-stationary diffusion
equation of Fokker - Planck and the boundary
conditions for isolating the only one solution.
The second step of the solution is implemented
by the tabulation at the grid-based points, that
is, considering the differential equation not at a
random point of the area, but only at the grid
nodes. Moreover, it is necessary to apply the
approximation of the derivatives at each node.
The solution of the equation system allows
determining the module of the minimum,
average, and maximum values of the phase
particle motion in different parts of the mixing
chamber, respectively. In connection with this,
the aim of the study is to substantiate the
processes of motion of various types of
granulated products
The tasks set in "The strategy of engine and technological modernization of agriculture until 2020" provide growth of labor productivity by 3–4 times. In our article, we have attempted to concretize in a zone sectional view the direction action for successful engine and technological modernization for the purpose of implementation of such strategically important point. Radical modernization of system of vehicles for complex mechanization of field husbandry based on the domestic equipment in relation to natural and technological conditions of the Krasnodar region is offered. Realization of system of transport is supposed with use of the equipment of the fourth generation, but in 2020 the equipment of the fifth generation and innovative processing methods for production of grain crops has to be realized. It is noted that the solution of such task without the state participation is impossible. The fundamental principles of improvement of system of vehicles for field husbandry and engine technologies are offered. The main of them is a new system of mobile power, new highly productive motorless grain - beetroot-, forage harvesters, new multipurpose units with the offered devices for combination of the technological operations changing labor-intensive technologies radically. We offer replacement of heavy tractors, self-propelled combines; cutting-down of the nomenclature of the equipment at the expense of multipurpose units, main application of fertilizers along with processing of the soil, drop of sealing of the soil and its dispersion. The offered technical re-equipment of branch will provide precision performance of operations, increase in labor productivity and economy of resources
In modern food production, extrusion is an actual and effective variant of intensification of technological processes. Its essential advantage is the possibility of correcting the content of proteins, vitamins and minerals in the finished product. The analysis of works devoted to the problems of obtaining food products of valuable food composition by extrusion technology shows the importance of further work in this direction.
The purpose of the work was to analyze the technological methods of producing snacks on a nut-and-grain basis, taking into account the need to obtain a complex of substances of daily requirements with a small volume of consumed food. In accordance with the purpose, the main tasks of the work were identified. To substantiate the expediency of producing grain crips balanced and enriched composition; investigate the chemical composition and substantiate the choice of raw materials for the production of crisps of high nutritional value; to offer techniques for improving the technology of obtaining extruded snacks; to develop recipes and to test the improved technology of obtaining food snacks on a nut-and-grain basis. In the course of the work, the qualitative composition of the main grain and auxiliary plant species was investigated.
We studied the optimal technological parameters of the production process of air snacks and original flavor combinations. We established expedient extrusion conditions for obtaining a product with predetermined properties. Various parameters of the final air product obtained by optimizing the formulation components were added when blending CO2-extracts and some types of CO2-meal. The composition and properties of the investigated objects were evaluated according to generally accepted procedures. When creating graphs, optimizing the formulation composition and for static processing of the results of the research, mathematical methods were used. The technological parameters of the production process of air snacks from domestic raw materials and original flavor and biologically active additives are presented. Formulations of new snack products are proposed. Ways of optimization of the applied technology in order to obtain a product of higher nutritional value are presented
The main way to extend the shelf life of fruit and vegetable raw materials is low-temperature drying, characterized by high quality products, low energy consumption and affordable cost of finished products. More fully, a two-stage drying, the first stage of which is convective drying and the second stage - convective vacuum drying, meet such requirements. The article substantiates the prospects for the use of fruit and berry powders in public catering, using electro-physical effects that significantly reduce the loss of valuable components of the feedstock. The authors proposed a combination of conventional convective dewatering processes with vacuum microwave treatment, in order to achieve high quality indices of dried products. The aim of the work is to reduce energy consumption for drying and improve the quality of finished products. Among the objects of research, there are fruit and vegetable raw materials, designs of drying plants and technological modes of two-stage drying and devices providing it. The research subjects include the establishment of the properties of fruit and vegetable raw materials in the process of two-stage drying. The methods of research are based on the use of modern methods of analysis and instrumentation. On the way of widespread introduction of powders into the production of various food products, there is a problem of insufficient attention of producers to this type of product, low volumes of its production and monopoly of individual producers of powders
We have developed a mathematical model of thermodynamic processes at oscillatory movement of liquids in porous environment with consideration of heat interaction of an oil layer with surrounding breeds and phase transitions caused by dissolution of paraffin’s dissolution. We have received analytical dependences of temperatures on time, distances to well and depth, that proves an opportunity to increase of oilrecavery when influenced by periodic fields of pressure. We have suggested a bartering effect to increase the temperature in zones far from the well formation. The mathematical model is based on the equation of heat balance, taking into account the contribution of phase transitions due to paraffinization in the case when the motion of the mixture takes place in a homogeneous isotropic porous medium with constant porosity and constant density. In the work we have developed a theory of bartering effect upon oscillatory movement of fluids in porous media considering thermal interaction between the oil reservoir and surrounding rocks and phase transitions due to the dissolution of paraffins. Comparison of theoretical and experimental data has confirmed the possibility of using the first approximation for the calculation of real thermodynamic processes in the filtration-wave fields. The developed process model allows the calculation of the temperature field in the practical conditions
In the article, we present existing approaches to the study of the optimal composition of technological systems. We have justified a new method of improving the reliability and the efficiency of technological systems of grain harvesting based on application of mass service theory. An engineering methodology for the substantiation of structure of the technological complex of agro-climatic conditions has been developed. In this case, the basis is the method proposed by S. D. Shepelev and G. A. Okuneva. To justify the structure of the technological complex of agro-climatic conditions of the Krasnodar region we have developed a mathematical optimization model, as criteria of which the losses from downtime of combine harvesters and transport vehicles have been taken. On the basis of the developed technique co-dependence on the number of combine harvesters «Torum-740» from the capacity of vehicles and coefficient for their use for the Northern zone of the Krasnodar region has been found
The main task in the analysis of time series is the
reconstruction of the dynamical system that generated
this series. To illustrate the nature of the behavior of a
dynamic system described by a nonstationary time
series, a «phase portrait» method is proposed. An
acceptable description of the phase space of a
dynamical system can be obtained if we take instead
of real variables of the system delay vectors
composed of the values of the series at consecutive
moments of time. Restoration in a given class of a
system of differential or difference equations is
performed based on the scalar time series of the
observed process. In order to eliminate the
measurement error and accurately represent the
position of the object in the current, future, or any of
the past moments, it is proposed to apply the Kalman
filter using the known mathematical model of object
dynamics
This article is devoted to the problem of network
attacks recognition, which is essential for providing
network security. A research of neural network
efficiency has been held. Such metaeuristic
algorithms as genetic algorithm, gray wolf
algorithm and firefly algorithm have been applied
for the neural network learning. The algorithms’
fundamentals have been described. Multilayer
perseptrone with sigmoid activation function has
been selected for the task of network attack
presence check. Various configurations of the
neural network have been tested in order to find the
optimal number of layers and neurons per layer,
which ensure the least error. Learning has been
performed by minimization of the average squared
error between the network’s output and its target
value with the help of the listed algorithms. Genetic
algorithm requires accurate parameter picking in
case of any network’s architecture alteration.
Moreover, it is not as fast as firefly and gray wolf
algorithms. Gray wolf algorithm appears to be the
most effective one. However, it loses its efficiency
if the number of layers is increased. Firefly
algorithm proves to be the most universal one.
Although it is less effective than gray wolf
algorithm, it provides the most exact output even if
the network’s structure is changed
The article proposes an approach to constructing a
methodology for modeling managerial situations in the
construction of real estate objects using a hierarchical
system and choosing a developer company to be
charged with the construction of real estate. A
comprehensive methodology has been developed on
the basis of which it is possible to forecast problem
situations that arise during the construction of a real
estate object and conduct a scientifically valid choice
of a developer company