The results of studies on the influence of different backgrounds and agrochemical pre-sowing treatment with bishofit on the growth and development of sain-foin sand, winter hardiness and productivity of crops under irrigation on light chestnut soils of the Volga-Don interfluve are submitted
To determine the feasibility of using PV systems we
should assess the economic efficiency of wind energy
in the region. At the same time, the first step should be
an analysis of upper-air and power characteristics of
the wind. The next stage is to determine the energy
source of wind power (theoretical, technical and
economic potential). The basic approach to the
calculation of economic indicators should include a
determination of the effectiveness of wind power
installations in competition with traditional energy
sources in a particular region. There are important
following indicators: the payback period and economic
efficiency. If the economic potential of wind power
satisfies the requirements, the next step is to study the
technical requirements applicable to wind power
stations. For a preliminary assessment of the terrain,
the article discloses a sequence of events that must be
performed to assess the effectiveness of the installation
of wind power systems. We have listed advantages and
disadvantages of the main types of wind power plants,
and other ramifications of choosing of basic functional
units. The considered in an article analytical
expressions for calculating the evaluation of economic
efficiency of wind energy, the technical requirements
for the basic parameters of wind turbines and their
main advantages, disadvantages and features the work
will allow at the design stage to carry out a preliminary
assessment of effectiveness of the wind power stations
for a particular region and locality, specific types
consumers in view of their modes of operation and the
quality requirements of electricity
In the context of the objective existence of risk and
economic, human and other losses related with it, there
is a need in a specific mechanism, which would allow
the best way to predict the damage caused by the
emergency. These risk management tools in
emergency situations are monitoring and forecasting.
In this research work, time series are used as a signal;
they contain information about the number of fires in
the Karachayevo-Cherkessia in the period of 1983-
2014. In solving the problem, the authors applied
wavelet tools for data cleaning from noise, anomalies
that have provided quality model building reliable
forecast - possible number of fires in one quarter
ahead. This example shows that for the construction of
this forecast there is no need for a rigorous
mathematical model specification, which is especially
valuable in the analysis of poorly formalized
processes. We have noted that most of the tasks in
emergencies fall into this category of processes
The authors briefly describe the properties of polyhexamethyleneguanidine hydrochloride (PHMG), which refers to a broad-spectrum biocide and has antimicrobial activity against Gram-negative and Gram-positive bacteria, viruses and fungi. PHMG has a deodorizing effect, gives the treated surfaces long bactericidal effect, which can be stored depending on the surface and other external factors from 3 days to 8 months. The authors have presented data about the level of bacterial and fungal contamination of air in the dispensary before and after aerosol treatment of Roksatsin. Bacterial contamination of air dispensary determined via the sedimentation method (Koch Method), which is settling microflora (in air), under gravity, on the surface of a growth medium. For the determination of total bacteria and fungi in 1m3 of air the authors make calculations of total aerobic microbial count (TAMC) according to the formula that was proposed by V.L. Omelyanskii. Bacterial contamination of air was evaluated before disinfection. Accounting quality of aerosol disinfection performed by sedimentation microflora on Petri Dishes through 30, 60 and 120 minutes of exposition. In the analysis of the data the authors defined that Roksatsin as a disinfectant has a negative effect on pathogens, namely significantly reduced the content of pathogenic and conditionally pathogenic bacteria and fungi in the air, so it can be used for preventive and compelled aerosol disinfection of air in the livestock buildings
The article reveals main reasons for developing
tendencies to the using of new types of energy, which
are limited supply of traditional fuels and
environmental problems associated with its
processing. It is shown that new forms of energy
plays an important role in the energy supply of many
countries of the world, and in the future they can
become the main sources of energy to meet the
growing needs of the global economy. We reveal
main reasons of the increasing interest in renewable
energy, and we show the obvious prospects of their
use, due to two factors. First, according to experts,
the global reserves of traditional fuels are limited, and
secondly, this was evidenced by the investments of
leading countries in this promising industry. The
article lists reasons for the need for the use of
renewable energy sources in Russia. Increased
consumption of natural resources has become a real
threat to the security of the life of human society. The
basis of solving modern social and environmental
problems is a transition to a regulated process of safe
use of natural energy potential to meet the vital needs
of people not only in the coming decades, but in the
long run. It is concluded, that the determining
condition for the development of the human
civilization at present and in the future would be the
level of natural resources which ensures the needs of
the population without making harm to the
environment
Rational and efficient use of natural resources is an important element of sustainable development. Waste is a significant loss of material and energy resources. Recycling and disposal of waste can be a cause of pollution, harmful substances and infections on people. Index of waste production is closely linked to the level of economic activity in the country and sums up the structures of production and consumption that are formed in the society. Reduction of capacity size of waste production is a measure of promotion of the economy sector to less material-intensive structures of production and consumption. Phytogenic wastes are mostly formed in the timber industry, and also are pollutant source of environment. Continuing production and accumulation of waste is a serious environmental problem. The main reason for these circumstances involves insufficiency of power in added-value wood processing, that increase the problem of integrated utilization of low-grade wood, small wood and demolition wood. As a result, the main competitive products in the timber complex of the Krasnoyarsk Territory are industrial wood and roundwood. Solution to these topical issues of optimum use of the resulting waste in the Krasnoyarsk Territory needs to be solved with the help of mathematical modeling of process optimization of recycling lumpy plant waste. Rational use of lump plant waste is one of the most serious and, unfortunately, unresolved problem
The aim of the study is to examine the relationship of
nature and the passage of the adaptation processes in
students. The article presents descriptions of the types of
character carriers which require adjustment assistance
In this article, there is a numerical method of solving
the problem of self-organization of the labor
resources. The problem deals with finding
probabilities of hiring and the layoffs of specialists
from the sectors of the labor market. A mathematical
model of labor resources dynamics is used to solve
this problem. The initial problem is incorrect,
because number of equations of the descriptive
system is less than number of unknown variables. A
special algorithm is designed for guaranteed finding
the normal solution in finite number of iterations.
The algorithm is separated into two key stages.
Initially, unconditional normal solution of the
problem is found by applying the modified method of
Gauss for underdetermined systems. Later, this
solution is projected in the subspace of permissible
values. After that, the normal solution of the problem
with consideration of non-negativity of the desired
values is being found by using the gradient projection
method. The proposed algorithm has been
successfully used to develop application in
programming environment C++. This application is
focused on solving of the problem of selforganization
of the labor resources. Comparative
analysis of speed of the application and add-ins MS
Excel "Solver" showed that the same problem is
solved much faster in the application designed by the
author than in a table processor MS Excel when
using the add-in "Solver". This demonstrates the high
efficiency of the proposed method
In the article, we can analyze the participation of
Kalmik trade unions in ensuring workers’ labor
protection and safety engineering in 1970-ies. The
sources of the article base are the documents of
National archive of the Kalmyk Republic. The analysis
of the large documental material showed that in
1970ies the trade unions began to study deeper the
question of making better the conditions of work, more
often raised the questions of labor protection at the
meetings of workers committees, drew the community
to this work. Kalmik trade unions organizations paid
serious attention to safety engineering and industry
sanitation, achieved such condition that the workers
were completely provided with overalls, means of
individual protection, they demanded absolute
mechanization of hard processes, fought for high
culture of manufacture. In spite of trade-union
organizations of the republic did definite work about
putting in order in cause of fulfillment of labor laws,
the situation did not change
The article presents the results of studies of changes in
the atomic radii of the elements of the periodic table,
depending on their atomic masses. It is shown that the
appearance of p- and d-orbitals introduces a significant
contribution to the value of the atomic radius, and the
appearance of f-orbitals makes a significantly smaller
contribution to the given value. A radial-mass model of
calculations of atomic radii for the elements of the
Periodic Table was developed. Optimal conditions for
making calculations were chosen. For the first time the
values of atomic radii for elements with the order
number 103-120 are calculated. It is shown that the
values of atomic radii for elements with the order
number 103-120 are in the range from 140 to 335
picometers and regularly change in the period