The article offers a method of details finishing and cleanup processing based on the details and working environment granules mass hashing in combination with the target transporting movement from loading to unloading. Such combination is provided by means of technological process in which the movements are carried out at the expense of the working body executed in the form of a complex screw rotor with the multidirectional screw surfaces formed by flat elements. Four screw rotors designs and methods of their assembly as well as the recommendation on the use of screw rotors are shown: "The movement of the processed details and particles of a working environment is the most complex and infinitely various among the I class screw rotors and the most elementary and uniform among the IV class screw rotors". The practice and experimental control of the details finishing technological process introduction efficiency in screw rotors have shown that for the considered case productivity of, for example, agnail removal increases tens of times. It is reached not only at the expense of the possibility of continuous processing provision in screw rotors, but also due to significant increase in amplitudes of low-frequency fluctuations which are reported to loading masses by the screw rotors machines located at different angles to each other and to screw rotor rotation axis
We have considered the most important direction of development of enterprises of the military-industrial complex: modernizing production capacity and technical re-equipment of these enterprises. The relevance of this issue in recent years has increased significantly due to changes in the terms of military development (economic hardship, sanctions, etc.). We have developed an economic-mathematical model of the choice between modernization and radical technical re-equipment of enterprises. The article has an analysis of this model taking into account the financial factors in this choice. The use of the developed economic-mathematical apparatus in practice allows increasing the efficiency of technological development of enterprises of the military-industrial complex
This prospective study was conducted on 10 commercial dairy herds, over one year on milk urea monitoring, determination of diets characteristics effects on MU concentration and on assessment of MU concentrations as a predictor of N utilization and urinary N excretion. Milk samples were collected twice every month and analyzed for urea concentration using a colorimetric procedure. Representative feed samples were also collected on the same day of milk collection. Feed samples were characterized and their concentrations of protein digestible in the intestine and net energy for lactation were calculated according to the French system as well as PDI requirements. Average of milk urea concentrations range is 25.0 - 32.0 mg/dl. A significant positive association (p
In their previous works, the authors solved the problem of cognitive-target structuring and formalization of the subject area, as well as the synthesis and verification of statistical and system-cognitive models. This work is devoted to the application of these models to solve the problem of forecasting the impact of the volume and direction of investment in agriculture on the economic component of the quality of life of the population of the region. This work is devoted to the use of previously created and verified models to solve the problem of decision-making on the volume and direction of investment in agriculture, improving the quality of life of the population of the region
Potatoes are cultivated in all parts of the world. In 2019, the Russian Federation ranked third in potato production. Ryazan region has favorable climatic conditions for potato growing. The growth in potato production is constrained by the insufficient provision of small and medium-sized farms with harvesting equipment and storage facilities. For working in small areas and in difficult conditions, simple machines are in demand: potato diggers and single-row potato harvesters. “Gala” variety potatoes are grown using intensive technology in the experimental field of the agrotechnological station of Ryazan State Agrotechnological University. In September 2019, there was a study of the effect of plant parts on the performance indicators of the technological process with a single-row KKS-1M potato harvester with a combined plant-top-removing device. The device consists of top-directing fingers, a top-removing roller and a counter-current finger-type separator. The studies are based on standard and private test methods. The harvester was tested on dark gray forest soils of heavy loamy composition, with a moisture content of 19-21%. Plots were prepared for testing: one with uncleaned tops, one with tops previously removed by BD-4 haulm shredder and one with manually removed tops. In the course of research, a change in the direction of potato stems during the movement of the heap along the working bodies of the potato harvester was determined. It was found that the stems change their direction from transverse to longitudinal. It was established that a combined PLANT-TOP-REMOVING device removes from 75.8% to 88.2% of plant impurities entering the harvester. Studies confirmed the efficiency of KKS-1M combine when harvesting potatoes. According to the generalized results, the loss of tubers was 1.5-4.7%, their damage was 1.7-4.39% and the purity of the tubers in the bunker was 70.3-84.7%. Studies confirmed that the harvesting technology significantly affects the performance of a potato harvester. In severe conditions, pre-harvesting row-spacing loosening can be recommended and the haulm shredder is set to a cutting height of at least 150-180 mm
The article is devoted to the use of complex computer programs called "Automated verification and final practice on determination of level of professional readiness of police officers to perform their tasks" - ASC "CONTROL" developed with the Delphe programming language. It describes the basic techniques of the automated testing with the use of the complex algorithms training testing database to use, as well as methods of reporting for testing. We describe how to work with the software modules of "Control" and "Analysis". The first is designed to create and edit a test database and processing of results of testing of the subjects. It is only used by the originator of the test and inspection and is not available for testing. The second module is available to everyone because it provides testing. It is implemented as a separate computer and local network. The number of test, at the same time is virtually unlimited. We clearly articulate the features of the use of the software complex, algorithms of creation of new test tasks, describe the setting options of the test database in detail, technology editing sections of the test, definition of assessment criteria, and describe the technologies of testing subjects. The Complex of computer programs of ASC "CONTROL" has passed the technical testing and successfully used in educational process of chair of computer technologies and systems of Kuban state agrarian University and the determination of the level of knowledge of cadets and police officers in Krasnodar University of MIA of Russia. In this regard, this work will be useful to drafters of test databases in this software environment
Common lilac (Syringa vulgaris L.), is one of the most essential landscape plants throughout the whole cool and temperate region and also in Finland very popular and traditional ornamental. The diversity of the lilacs available for research use and growth in Finland could be broadened by introducing Russian winter hardy cultivars to Finland. Their winter hardiness and survival in the Finnish climate has to be studied in order to proceed to using Russian cultivars in the Finnish climate. Lilacs that grow at the Central Siberian Botanical Garden Siberian Branche of the Russian Academy of Sciences at Novosibirsk were introduced to Finland within the framework of the collaborative project in 2012. Currently, the collection of Syringa vulgaris in CSBG SB RAS has 26 cultivars of 116 tested ones, most resistant to the conditions of Novosibirsk city. In project “Syreenimaja” (2016-2018) small scale plantations with Russian lilac cultivars were made at several locations in Finland and the freezing tolerance of the cultivars was tested. The survival and growth of the lilac plants in these plantings in landscape gardening areas in old gardens is being observed. The lilac plants are still young and have not been flowering broadly. The preliminary results have shown that the Russian lilacs have potential to grow in Finland, but at least cultivar ‘Daphna’ has suffered from winter injuries. Descriptions of 10 tested lilac cultivars from the collection of the CSBG SB RAS are given
System paradigm is discussed conformably to
functioning of controlling institution of a large-scale
agro-industrial system. Presently the systemacity
became the general platform of fundamental and
applied, scientific and practical elaborations and
projects. Now in the sphere of system researches
surge of interest in questions of classification is
observed. Apparently, it is connected with
accumulation of results of private researches in all
areas of this discipline and with inevitable
transdisciplinary crossings of their practical
applications. So, undoubted intervention of high
technologies to the agrarian sphere is observed. The
efficiency of this introduction, certainly, depends on
coordination of actions of developers of various
subject domains. On the basis of the objective
analysis it must be noted that in the arsenal of
managers, especially foreign ones, there is
practically no fundamentally new methods and tools
of controlling. So says the executive director of
Russian Association of Controllers prof. S. G. Falco.
However, promising mathematical and instrumental
methods of controlling actively developed in our
country. It is necessary to implement them. For
example, managers should be used advanced
mathematical and instrumental methods of
controlling. These methods are based on the modern
development of mathematics as a whole - on the
system interval fuzzy math. Considered methods are
developed in accordance with the new paradigm of
mathematical methods of research. It includes new
paradigms of applied statistics, mathematical
statistics, mathematical methods of economics,
methods of analysis of statistical and expert data in management and control. In the XXI century there
were more than 10 books issued, developed in
accordance with the new paradigm of mathematical
methods of research. The systems approach to
solving specific applications often requires going
beyond the economy. Very important are the
procedures for the introduction of innovative
methods and tools. In this article we consider the
above research results in their interconnection
An algorithm for obtaining a complex of mathematical
models of electromechanical devices, which can then
be formalized and implemented in software, is
proposed and described. Until recently, the
implementation of this algorithm was possible only
with the manual derivation of all expressions, which
significantly hampered the work of researchers. The
appearance of such programs as Maple, Mathematica
and MathCAD provided the possibility to automate the
process of obtaining analytical calculations that allows
calculating any modes of any types of
electromechanical devices, reduces the likelihood of
errors and allows you to change accepted assumptions
and designations in the developed models. The choice
of the MathCAD program (in comparison with Maple
and Mathmatica) can be justified by the fact that
MathCAD has the most convenient interface, allowing
not only to perform mathematical calculations, but also
to present the results in ordinary mathematical
notation. The analytical results obtained in MathCAD
can be immediately included in numerical models
In this article, on the basis of phenomenological
consideration of kinetic processes in semiconductors
volume, we have conducted an analysis, in order to
estimate the drift and diffusion components of the
output current for hot carriers in the total output of
the conductivity structure of the chip. The result
revealed amplitude and frequency characteristics of
this component of the conductivity, illustrating a
greater amount of its modulus and phase inversion
near the field-strength values of Ghan effect. This
can be used for designing oscillators of millimeter
range of wavelengths. It is shown that the nonlinear
diffusion component along with the drift is important
for the output conductance of the test specimen