The article are present the planting dates influence on the onset dates of main development phases and seed yields of the winter rapeseed and camelina. The investigations were carried out in conditions of insufficient and unstable moistening on normal black earth in the Priazovsky zone of the Azov district of the Rostov region from 2013 to 2017 years. The rapeseed variety Loris, the rapeseed hybrid ES Neptune and the camelina variety Penzyak were selected for research in two-factor field experiments. It has been established that the guaranteed yield of winter cabbage oilseeds depends on the timing of the emergence phase and the autumn's weather conditions (the sum of the effective temperatures, humidification conditions) that affect the development of the root leaf rosette. The maximum seed yield was registered in the winter rapeseed variety Loris (4.33 t/ha) in the favorable season 2013-2014 years when was sowing in the second decade of September with an autumn vegetation period of 59 days and the sum of effective temperatures about 320° C. The optimal time for sowing of winter camelina variety Penzyak is first or second decade of September. The maximum seed yield (2.04 t / ha) was obtained in 2013-2014. when was sowing in the first ten days of September with an autumn vegetation period of 70 days and a sum of effective temperatures of 417° C. It was revealed that the seeds of this plant are capable of wintering in the soil and the renewal of vegetation in the spring. The loss of harvest is up to 50 % of the overwintered plants yield that have risen in autumn under unfavorable conditions. The optimum period of autumn vegetation that allows forming the potential productivity of winter rapeseed plants can be considered 60-75 days with sufficient moisture supply and the sum of effective temperatures of 250-400° С. At the winter camelina it was 50-70 days with the sum of effective temperatures not less than 200° С
This article is dedicated to the study of the
parameters of the artificial immune system for
solving the polymorphic viruses’ detection
problem. The goal is to define a vector of the
immune system parameters that would ensure the
minimum number of errors of the first kind, the
minimum number of errors of the second kind and
the maximum percentage of polymorphic viruses’
detection. That is, the most accurate classification
of them as a malicious code, in relation to any
theoretically possible vector of parameters of the
artificial immune system. A distinctive feature of
the studied artificial immune system is the use of a
class of genetic algorithms that provide more
efficient training of detectors. The configurable
parameters of the system are: the algorithm for
determining the proximity of the detector and the
pathogen, which can be realized by determining the
Levenshtein distance or by the method of adjacent
bits; as well as the method of implementing the
crossing-over operator, the method of implementing
the mutation operator, the method of implementing
the selection operator, the algorithm for
determining the proximity of the detector lines. In
addition, the article considers the expediency of
using a distributed network of several nodes, each
of which will have an immune system that will
exchange data with other nodes of the network. As
a result of the research, a set of optimal parameters
was obtained in which the system achieves the
maximum accuracy of recognition of polymorphic
viruses
We have presented technical solutions of an energy
supplying complex of apiary based on a solar plant,
which ensure its functioning in the winter. Various
aspects of the influence of the snow cover on the
functioning of the complex are considered in the
article. The favorable effect of the snow cover includes
increasing the diffuse insolation, improving the
thermal insulation of the building for placement of
bees, which protects bee families from fluctuating
external temperature. The negative effect of the snow
cover includes adherence of snow to the receiving
surfaces of solar energy converters, which can lead to
decreasing the efficiency of using of photovoltaic
modules and solar collectors. Both active and passive
methods of combating snow sticking are suggested in
article. Passive methods include installation of solar
energy converters at an angle close to 90°, as well as
their placement on the windward side. The simulation
of the functioning of the complex based on a solar
plant was conducted for climatic conditions of the
Republic of Mari El (the time interval – from 14
October to 14 April, a photovoltaic module area – 1,3
m
2
with installation angles of 72˚ and 88˚). Because of
the simulation, we obtained graphs of the changing the
power of the photovoltaic module. Active methods
include air injection onto the receiving surfaces of
solar energy converters and using of heating elements
The article formulates and solves the task of discrete
control in the thermophilic stage of the composting
process. It is shown that considering the relay control
entity to maintain specified process conditions requires
the organization of the sliding mode. We have solved the
problem of minimizing the temperature deviation of the
substrate from the set values and the deviation of the
oxygen concentration in the gas phase of the bioreactor
from the specified values. The article shows the
algorithm to compute the discrete control of the
composting process in the thermophilic stage. This work
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
The article is devoted to finding of the optimum
parameters for elastically damping mechanism (EDM)
which is located in transmission of machine-tractor unit
(MTU). The investigated MTU is based on the tractor
of 1.4 class in plowing mode. EDM is designed for
MTU in order to make its’ start smoothly, to reduce the
dynamic load in transmission, to protect engine from
the external load vibration. The “transmittance level”
(index T) is used as evaluation of the protective
mechanism quality. The study was carried out by
means of the experiment planning method, viz. the
central composition plan of second order with five
factors. A regression model for response function
(“transmittance level”) is given. This model takes into
account the chosen EDM characteristics. The statistical
analysis methods (Student’s t-test, Fisher’s test) were
used to study the regression model. The dependence of
response function on each factor apart, their cross
impact on the process are described. The system of
partial differential equations is obtained to find the
optimal values of parameters and response function.
The optimal value of a “transmittance level” can be
obtained by varying different EDM parameter values.
Optimal values of parameters and as result - response
function - allow improving of MTU functioning in
plowing mode
The technique relates to the area of distribution of key
information in cryptographic communication systems.
The purpose of the work was to solve the problem of
increasing the speed of distribution of key information
for special bodies of federal bodies of critical facilities
in the conditions of network-centric management and
creating alternative options for the distribution of key
information when key documents are compromised to
special equipment. By applying the methodology, a
solution to this problem is achieved by applying a key
distribution method based on asymmetric
cryptography using symmetric polynomials
An analysis of the state of contamination of rice crops
with red-grained forms was carried out, as well as
impurity was found both in the seed material and in
the soil. It was shown that there is a need to switch to
non-weeding seed growing technology when
conducting elite and reproductive seed production.
Various variants of soil cultivation in combating the
red rice forms are considered, both in the main and in
the pre-sowing treatment. It has been found that after
harvesting rice on heavily foul areas, it is better to
burn straw, and not to carry out autumn tillage of the
soil, the seeds of red-grained forms die mostly when
wintering on the soil surface. The most effective
method of soil cultivation for controlling of red rice
forms in seed crops has been identified, in which the
yield is increased, and the contamination of crops and
the resulting rice grain is significantly reduced. The
work carried out will allow reducing manual labor
costs in the production of seeds, improving their
quality and assortment, speed up variety changing and
variety updating
Urban trees can provide multiple environmental
benefits. The study of the state of the street tree and
shrubby vegetation from the analysis of inventory data
and environmental conditions is purpose the article.
The structure of 11 types of street roadside vegetation,
which determines about 93% of the greenery
composition of the city of Ekaterinburg is considered.
The structure of the examined tree-shrub vegetation
and all vegetation, which is part of the greening of
Ekaterinburg, is compared. For each tree (shrub) was
measured: species, number of stems, diameter of stem
at 1,3 m, tree height, height to base of live crown,
crown width, percent of branch dieback in crown,
percent of canopy volume devoid of leaves, number of
sides of the tree receiving sunlight from above,
distance and direction to building, distance to road. As
a result, homogeneity of illumination of various plant
species is received. Ash ordinary has the largest of all
plants values of the percent of the missing crown
(61.3%) and closest distance to the road. The effect on
the plants (by average distance) of urban buildings (7-
30 meters) and the proximity of the roadway (3-7
meters) was observed
The problem of the optimal distribution of production tasks is one of the important problems of effective planning of processes associated with production at the enterprise. However, the classical approach to solving this problem becomes of little use when the individual stages of the production process are performed sequentially and in the case when it is necessary to take into account the structural features of the technological processes of the enterprise. Purpose of work: to develop a methodology for minimizing costs in the distribution of production tasks, taking into account the structural features of the technological processes of the enterprise. We built a multicriteria discrete optimization model for the distribution of production tasks according to the structure of production elements. One of the methods based on the proposed model is proposed, which allows to identify groups consisting of four elements in the production structure of the enterprise. The model is built using a network design which are pre-fractal graphs. The use of pre-fractal graphs allows you to naturally represent the structure of production and technological links of the elements of the production system of large enterprises. The results of the work is the developed effective methodology for solving the problem of the network distribution of production tasks, taking into account the structural features of technological processes at the enterprise, the economic effect of which is to minimize resource costs. Based on the constructed model, we can develop automated means of monitoring and managing the production processes of a company
The article gives an overview of the results of a study of the growth and development of corn in the conditions of the Northern zone of the Krasnodar region depending on the density of plant standing and seed treatment. The object of the research was an early-ripe hybrid of Ross 199 corn. Two factors were studied in the experiment: factor A - plant stand density (60, 70 and 80 thousand units / ha), factor B - seed dresser (Maxim XL (k) and Maxim Quatro). The subject of research is included in the thematic plan of scientific research of the Department of General and Irrigated Agriculture of KubSAU. The total area of the plot is 1008 m2, the accounting area is 672 m2. The number of rows in the plot is only 8, including accounting - 4. plots The plots are placed systematically. Repeating: 3-fold. The predecessor is winter cereal crops (wheat). The counts and observations in the experiment were carried out according to generally accepted methods. The studies have established that the duration of the interphase and vegetation periods of corn plants depended on the density of plant standing, and with the thickening of crops, it decreased, and protectants did not affect this indicator. In all phases of determination, the maximum height of corn plants was noted with a plant standing density of 80 thousand units / ha. The studied dressers Maxim XL and Maxim Quattro had practically no effect on height. The diameter of the second internode decreased with thickening of the crop