The article obtained the explicit form of root polynomials for cyclic polynomials of degree three over fields of characteristic 2. We also give an overview of known results on the root polynomials over arbitrary fields
In the article, results of researches are presented, according to placing of root system of trees of Russian plum Globe on various cloned rootstocks in soil. It is revealed that the most powerfully branched out and deeply getting root system is formed on root of a plant, and also on stocks of Evrica 99 and Kuban 86
The article presents the results of three-year researches of root-formating ability of grafts of 9 resistant table and technical grape varieties of native and foreign selection at their rooting in water.
Among studied indexes of root-formaing ability of grafts, the best varieties were Moldova, Lyana, Riton and Pervenets of Magarach
In the article the question of the importance of the location of the disk of the workers in the combined aggregates. We have also identified the challenges of technological bundling combined aggregates disk working bodies, depending on destination and condi-tions of work
The article presents results of research of rotary-screw
systems in relation to the creation of rotary kilns for
the annealing of-cuttings in the preparation of cement
clinker. Using the proposed design, in comparison
with known designs of similar purpose, it significantly
improves performance, reduces size and power consumption
through the use of rotary screw systems in
the form of screw rotors and drums made hollow with
sidewalls assembled from separate strips or plates of
different geometrical shapes with form inside the
screw breaks or smooth edges, screw surfaces and
screw grooves. It is shown that the housing of the rotary
kiln is expedient to produce helical surfaces whose
centers of curvature are located within the housing.
Using the proposed constructions rotary kiln during
the firing when preparing cement wedge can increase
the speed of rotation of the housing, furnaces 5-10
times due to changes in the rotary-screw systems increase
efficiency and reduce the size of furnaces
We have provided technical solutions to improve performance
of technological systems for the preparation
of solutions and concrete based on the use of screw
rotors in the form of drums with helix lines formed on
the perimeter as interconnect lines of his spiral surfaces.
We discuss the six varieties of devices and installations
for mixing, including concrete mixers, reels
which are of a complicated geometric body formed by
helical surfaces with variable or constant pitch and
which creates screw lines in the places of their connection.
In the form of screw drums, they may be conical,
concave, convex, cylindrical. The experimental test
was conducted on the concrete mixer drums, which are
arranged one in the other. The implementation of the
mixer in the form of coaxially edited two barrels provides
not only a reduction in size in length, but a significant
reduction in energy consumption due to the
use of heat, released during the activation process of
inert heating of the concrete mix as when re-mixing
and concrete mix when mixing it with water and transportation.
The drums of such systems is made of flat
elements with the formation of the helical lines discretely
spaced around the perimeter of different pitch
and with different numbers directed towards each other
helical surfaces. In the process of transporting the
components of concrete in the internal screw drum
there is active mixture of sand, gravel and cement.
Thus, there is not only the destruction of lumpy, sticky
components of the raw materials, but also active uniform
distribution of particles of cement, sand and
gravel into a homogenous mass. The implementation
of the proposed technology and equipment ensures not
only reduction of the dimensions of the mixer length,
but also improving the quality of finished products, as
well as potential cement savings of 3-5%
Many scientists suppose that rural tourism as a kind of
tourism industry in Russia has not got long history.
But we can see its manifestations at different stages of
tourism development, which are described in the given
article. In different historical periods, rural tourism had
its own forms, modifications and kinds of activity.
That is why we can say that agrarian tourism took
place in pre-Soviet and Soviet periods too. Besides, we
still have troubles with theoretic aspects of rural
tourism. Today science society invents a determination
of rural (agrarian) tourism, creates classifications of
this and so forth. Nowadays rural tourism is a
polyfunctional phenomenon. That is why we should
explore it in more details. The Krasnodar region has a
lot of recourses which allows us to develop many kinds of tourism, including agrarian on its territory.
Existing legal environment creates attractive
investment climate and helps to develop rural tourism
in the Krasnodar region successfully
The article deals with the problem of assessing the
quality of land settlements of Krestetsky uyezd in
Novgorod province since the time of cadaster
descriptions of Novgorod land to fieldworks of
Russian soil scientists. The comparative aspect studies
information of cadastres in the middle of the XVI
century, Economic notes to the General landsurveying
of the Russian Empire in the second half of
the XVIII century and "Soil and Geological essay of
Krestetsky uyezd" at the beginning of the XX century.
Due to this research a database included information
about the settlements having existed in the territory for
centuries, with the description of land quality and
fertility was compiled. The analysis revealed that
according to field studies, mechanical and physical
composition of soils in Krestetsky uyezd within the
same soil type was very diverse. General land
surveying described soil based on the predominance of
muddy substances, sand or clay, but at the same time
the characteristic of grain yields played an important
role. In the XVI century the categories of good,
medium and poor lands could have the lands with the
same composition of the soil, and the probability of it
was especially strengthened by the prevalence of
certain soils in the region. However, at the micro level
of individual settlements of graveyards certain
regularities in land assessment shown in the objective
signs that can be identified on the country are traced.
The graveyards of Derevskaya pyatina included in
Krestezkiy uyezd deals with such objective indicators
as worsening assessment of the quality of land
including the availability of various types of clay
which are subsoils of many local soils
This article investigates the political and economic peculiarities of Russia in the World Trade Organization. Examines trends of possible threats to Russia's economic security. The necessity of constant monitoring of Russia's economic security and a member of the WTO is shown
The author analyzes the current state of the banking system of Russia, highlights the major leaders in the field: Sberbank, VTB, Gazprombank and explores their branch network abroad. He concludes that as a result of Russia's accession to the WTO, the influx of foreign capital into the banking sector is activated. Positive expectations for expansion of foreign banking institutions are associated with improving the quality of financial services, the improvement of products and technologies, the inflow of long-term and low-cost resources to enable banks to more actively lend to the economy, increase the availability of bank loans to enterprises and households. However, according to the author, the Russian banking system will need to not only adapt to international standards, but to meet them