In the article the presented questions of theoretical research of processes of an electric resonance of the generator of ozone were discussed and their influence on productivity and electro-ozonizer efficiency was also defined
We have presented a comprehensive calculation of chain drive with internal teeth, comprising: geometric calculations, power and dynamic parameters of the transmission, as well as a method for fabricating the sprocket with internal teeth and wear prediction model of roller chain
The article deals with the calculation of basic parameters of making bulk materials on the surface of the field. This calculation makes it possible to obtain data on the required amount of particulate matter
We have reviewed the methodology on a specific example of greenhouses of type 6D, the calculation of the bearing capacity of the upper and bottom zones roof trusses. The urgent need for in-depth analysis of the issue bearing capacity appeared in the light of a rather massive construction of greenhouses, especially in the Southern Federal District, as its constructive is purchased in the Middle East. However, the simple transfer of designs greenhouses made in the Middle East, to the territory of the Russian Federation is not completed successfully. These structures cannot withstand greenhouses in some cases, according to the service manual, snow loads, in other cases, wind loads, and in the third case, the construct may be destroyed for no apparent reason. Need to clarify the situation become clearer. Successive static, dynamic and seismic analysis carried out by force in the territory of the Russian Federation regulations and norms provider in relation to the actual sections bearing structural elements, revealed The following percentages of use of structural elements under consideration. According to the standards of the Russian Federation, for the first limit of the percentage of use - 395%; the second limit of the percentage of use - 999%; according to the norms of the Russian Federation with the load provider for the first limit of the percentage of use - 339.3%; the second limit of the percentage of use - 999%. The upper chord coating: according to the standards of the Russian Federation, for the first limit of the percentage of use - 495.2%; the second limit of the percentage of use - 361.4%; according to the norms of the Russian Federation with the load provider for the first limit of the percentage of use - 150.8%; the second limit of the percentage of use - 146.2%. The analysis presented allows us to conclude that when uploading the upper and lower zones of farms covering greenhouses, load combinations specific to the location of the greenhouse type 6D, their carrying capacity and hence the structure as a whole is not guaranteed
Low level of water accounting and poor control in
water distribution in the irrigation system are the main
negative factors of industrial influence on irrigated
natural complexes. Complex ecosystem way to control
water resources involves qualitative improvement and
optimization of all parts and elements of irrigation
system, from the headwater pool, main channels to
local water distribution channels. In this regard, when
engineering, constructing, using some new and
reconstructed old irrigated systems, the most important
problems are the optimization of water use from
natural water resources, development and use of highly
efficient water-saving and energy-saving technologies
of water distribution and water use in the irrigation
system. The problem of economical and efficient
consumption of water resources on the studied water
complex cannot be solved successfully without any
related consideration of water accounting and water
consumption questions based on system principles.
System principles are supposed to collect, analyze and
use the information, with the help of complex technical
means, which are used for water measurement in
conditions of water charges, and for the purpose to
control the technological processes of water supply
and water drainage, when the needs of water users are
satisfied and the environment get less damage. In the
work, we study the mathematical calculation of the
unsteady water line in the Krasnodar suburban channel
for water measurement. The imitated research of
hydraulic processes were carried out on the
mathematical model of water measurement, based on the characteristic methods, with the use of analytical
solution of ordinary differential equations of the initial
characteristics. The use of the considered method of
water measurement in irrigation channels with the use
of analytical solution of ordinary differential equations
of initial characteristics will allow to optimize the
processes of water measurement and to minimize idle
and non-technological discharges of water from the
system
We have made calculations using the values of dung delivered after the analysis of laboratory research of the soil and irrigation water delivered with organic fertilizers. Based on the data on values of hydraulic resistance coefficients of mixer elements, mixing chamber and diffuser, we found diameters of pressure pipelines, reduced head of NGPR mixer, velocity of flow discharge from mixing nozzles and the mixing chamber. According to the design data of the pump head values, those of the mixer head, the head on inlet into the mixer and head in a reservoir of constant pressure a possibility was received to specify values of factors under studies on location of irrigation system and to test the design data with the help of the experimental value received. A low head system with hydraulic and geometric parameters of mixing is recommended for small farms
The article presents a method of engineering
calculation of the strength of band saws and belt force
to stabilize the cut
Mathematical modeling of process of an operational parameters choice of watering techniques, which can be used as the theoretical basis, allowing making multiple numerical experiments for the purpose of results reception for a concrete irrigated site, is considered. Article is recommended for researching and other organizations at designing new and reconstruction of existing sites, and for the operational organizations at decision-making of a choice of technology and watering techniques
This article reveals the question of the need of increase of capitalization and pre-capitalization of commercial banks in detail. A question of participation of the state in the development of the banking system of Russia has been considered as well
Increase of the company’s capitalization level affects the growth of its strategic investment attractiveness. Capitalization of reproducing potential is the factor, which provides conditions of stable development of regional economic system. Estimation results of repro-ducing potential are necessary for justification of in-vestment projects on acquisition of definite assets or their selling, for the choice of strategy of enterprise development in the competitive environment