An analysis of the experimental data obtained by the
authors, as well as reference books, allowed to
hypothesize about the essential role of gravitational
convection in electromembrane systems with
ampholytes even in underlimiting current regimes. The
article is devoted to the development of the
mathematical model of ion transport in a flow
elecrtomembrane system during electrodialysis of
ampholyte-containing solutions with taking into
account a possible appearance of gravitational
convection, in particular, due to nonisothermal
protonation–deprotonation reactions of ampholytes.
The article presents the boundary value problem that is
the new mathematical model for diffusion, convection
and electromigration of four components of the
solution (ions of sodium, dihydrogen phosphate and
hydrogen, as well as molecules of orthophosphoric
acid) in a half of an electrodialysis desalination
channel, adjacent to an anion-exchange membrane. The membrane is considered as ideally selective and
homogeneous. The system of partial differential
equations, that is the base of the model, also includes
equations of Navier-Stokes, material balance,
convective heat conduction and the electroneutrality
condition. The system of equations is supplemented by
a number of natural and original boundary conditions.
A distinctive feature of this study is the absence of
assumptions about the equilibrium of chemical
reactions in a diffusion layer. The results of the study
can be used for the development of environmentally
rational and resource saving membrane technologies
for a processing of products of agro-industrial complex
In the article we consider the questions of modeling of
temperature changes in the composting process, the
changes of oxygen concentration and temperature with
the air from the environment, produced the effect of
composting heat exchange mass with the environment,
the selected state variables and the control bioreactor, the
dependence of the coefficients of the system equations of
motion from the variable state of the object. This article
was prepared in the framework of the scientific project
16-48-230441 a(R) "Mathematical modeling of the
processes occurring in the automated installation for
year-round production of organic fertilizers in the
conditions of the Krasnodar region", financed by RFBR
and the administration of the Krasnodar region
This article gives estimation of drying (liquidation)
ponds with subsequent selection of the most optimal
variant. For example, ponds â„– 1, 2 have the
calculations for the four drainage options: bottom
outlet, using a mobile diesel pumping stations,
through the siphon outlet, as well as the combined
option of draining (via a bottom outlet and mobile
pumping stations). The results of the calculation for
each of the cases were examined; the article
summarizes the estimated parameters, which allow to
visualize and choose the most optimal variant of
drying, depending on the time of evacuation
Currently, with the support of the Krasnodar region
administration, the task of returning the Cossack
way of life in the territory of Kuban is being solved.
In these conditions, features of honor, dignity and
business reputation of Cossacks of the Kuban
Cossack army as objects of the civil protection legal
relationship on their judicial protection from
defamation, considered in the article, become very
relevant. It is suggested in defamatory litigation to
leave the stereotyped, based on the same for all
understanding of these immaterial benefits, to take
into account their characteristics for the different
groups of population, including Cossacks of the
Kuban Cossack army
Distinctive features of seeds of Silybum marianum two varieties – the ‘Start’ and the ‘Debut’ on morphology are presented in the article and also data on influence of storage conditions on sowing qualities of seeds are submitted. Seeds of two varieties differ among themselves on coloring, a form and mass of 1000 seeds. The ‘Debut’ is characteristic sign of a variety existence of dark strips on a surface of seeds. Results of two years of tests have shown that during 1 year from the moment of collecting seeds energy of germination and viability gradually increases and reaches the maximum values in 12 months independently of storage conditions. The viability of seeds of the Silybum stored at the room temperature within 18 months decreases by 8,5-12,5%. As a result of an experiment it has been established that in the conditions of not heated room successful storage of seeds is possible not longer than one year, after that sowing qualities of seeds sharply decrease
The article considers data obtained in long-term stationary experiment in Kuban state agrarian University, which was started in 1991 for old irrigated leached black soil of the central zone of the Krasnodar region. Studies were conducted in two rotations of seven-field grassy-grain-row crop rotation. The duration of irrigation - more than 30 years. It is established that long-term irrigation by sprinkling led to the soil over-compaction in both arable and subsurface layers. In the arable layer of 0-30 cm density of 0.14-0.17 g/cm3 exceeds the maximum allowable. We have noticed a sharp decrease in humus in the arable layer to 2.46-2.67 per cent. The weak acidification of the active root layer was noted, salt PH 5.0-5.3. In the soil-absorbing complex, the content of calcium decreases. It was found that the productivity of crops cultivated in the rotation of two rotations was greatly influenced by the system of basic soil treatment. In the first rotation, the decrease in productivity of cultivated crops against the background of the surface treatment system amounted to an average of 4.2% compared with deep: subsurface tillage and moldboard. In the second rotation after 14 years against the background of shallow surface treatment crop rotation productivity decreased by 11.2 %. The dependence of the fertilizer system and crop yield on the background of different main soil tillage is established. When using the mineral fertilizer system, the decrease in crop productivity, while minimizing the main tillage in the second rotation was 15.2%, and against the background of the organic fertilizer system by 12.7%. The deep sub-soil treatment provided an increase in the productivity of old irrigated leached black soil in the second rotation against organic fertilizers by 3.6%.
Thus, the organic system of fertilizers on the background of deep main soil tillage allows to obtain crop yields in the framework of grassy-grain-row crop rotation on wetlands degraded old-irrigated lands is not lower than using high doses of mineral fertilizers
Basic information files that revealing external users
with information about the organization are the accounting
financial statements. Reforms of the national
accounting led to reduction of reporting forms informativeness
and removal of transcripts. There was
an obvious need for the formation of statements that
reveals a wider range of indicators. Thus, integrated
reporting can be such information array. Integrated
reporting is the accounting tool, the information array
about the organization. Integrated reporting includes
such positions, as: a set of indicators characterized
the economic, social and environmental aspects of
the entity; the corporate management system that
allows interested users to track the process of entity’s
value creation and to form an opinion about its economic
value. This type of reporting will be able to
shape in accordance with the proposed methodological
document "Rules of integrated reporting formation".
This document assumes the following structure
of integrated reporting: relevant information
about the organization, historical information, environmental
information, social information, innovation,
internal control system, decoding of the financial
statements, analysis of financial condition and
financial results
It is known that today one of the promising areas to effectively solve issues of energy saving, is the introduction of renewable energy sources. Despite the fact that the current solar PV stations have the main drawback associated with the high cost, the prospects of their application in autonomous systems of electrosupply are evident when they are used in combined (hybrid) systems. In such systems there may be other types of renewable and traditional sources of electricity. In addition, they produce heat. We have disclosed prospects of solar industry, and also, for solar energy assessment, we have examined analytical expressions allowing defining the energy derived from solar radiation for specific surfaces. Calculations start from obtaining statistical data gathered at meteorological stations which keeps records of the intensity of the total (direct plus diffuse) radiation on a horizontal surface, and the intensity of direct solar radiation. The article presents features of the calculation taking into account the climatic and territorial conditions on the example of the Krasnodar region. The given calculation procedure is the first stage for designing solar power plants. Further, the total capacity is determined by electricity consumers, as well as the quality requirements of electricity, including continuity of supply, embarking to the construction of the block diagram electricity supply. In this scheme, we must provide primary and backup power sources. It selects the main equipment of solar power plant (solar panels, inverters, storage batteries)
This article proposes an approach to teaching
mathematics in high school, based on the application
of application software packages, which is especially
relevant in connection with attempts to transition in the
upper grades to profile education, when the student
chooses the direction of more in-depth study of
subjects, based on his own inclinations. The
substantiation of necessity of development of
methodical positions and recommendations on use of
packets of applied programs on lessons of mathematics
in the senior classes of high school is given. The
analysis of existing packages of applied programs for
teaching mathematics in high school is carried out.
During the research, packages used for solving
mathematical problems are considered: MS ESCEL,
STATISTICA, MATCAD. Known packages of
applied programs are classified according to groups of
applications in mathematics lessons. Approaches to the
use of application packages in math lessons during the
pedagogical experiment have been tested. The
pedagogical experiment was conducted on the basis of
the State Budget Professional Educational Institution
of the Krasnodar Territory "Beloglinsky Agrarian
Technical Technical School". The analysis of the
results of approbation is carried out and
recommendations are made on the application of
application software packages in mathematics lessons
in high school
This article presents the studying results of new premixes of domestic production using efficiency based on processed products, in particular - oil cakes. The research was carried out in the conditions of the second-order pedigree reproductor in LLC "Svetly" in the Svetloyarsky district of the Volgograd region in the period from 2015 to 2017. During the scientific and economic experience, the authors revealed the new fodder additives positive influence on the laying hens’ egg productivity, on the eggs morphological and incubation rates and on the got young birds. The use of premixes in layer diet, which included the fodder concentrate from the plant raw material "Sarepta" and Camelina seed oil cake, contributed to the increase in the hens laying capacity, in general, the group received in 249 and 310 pieces more than in the control one. The egg average weight from the chickens of the control group was 60.89 g; from the first experimental it was 61.33 g; from the second experimental it was 61.39 g, which was higher than in the control one, respectively, by 0.44 g and 0.50 g. While the hatching eggs morphological indices analysis, it was revealed that all parameters are within the permissible limits of the physiological norm. Fertilization of eggs in the control group was at the level of 89.33%, which is lower than in the experimental groups. As a whole, the eggs' production in groups was 20.00% in the control, 17.33% in the 1st group, and 16.00% in the 2nd test group