This article discusses the basic analytical expressions for calculation the energy potential and cost-effectiveness of wind energy
The article investigates the possible pathways for the
formation of crotonaldehyde in wine production in the
result of the activity of wine yeast and lactic acid bacteria. It established that exposure to exhaust gases, noble rot, pathogens and pests on grape plant does not lead to the biosynthesis of crotonaldehyde in grape berry. The experimental data to identify probable pathways for the formation of crotonaldehyde during vinification has been presented. The effect of the test substance on the life of yeasts and lactic acid bacteria has been estimated
This article discusses the application of the method of selective transfer to restore the plunger pairs of high pressure fuel pumps of diesel engines. To restore plunger pairs the authors of the article propose to use an anti-friction repair-and-renewal composition on the basis of the mineral serpentinite
The ways and the methods of the solution of the problem of complex cleaning of grain crops were proved; the de-pendences of engine capacity of the Massey Ferguson tractors of 8200 series on the capacity of a thresher of the hook-on combine were received
The task of nonparametric identification of sequence
objects with discrete-continuous nature of the process
under nonparametric uncertainty, i.e. in conditions
where a priori information is not sufficient for an
informed choice of a model structure up to
parameters is considered. Among series-connected
objects, there can be objects both dynamic and
instantaneous ones with a lag. This kind of
technological chains is common in various industries,
particularly in metal, power, oil refining, etc. in
solving this problem were used methods of
nonparametric identification theory, mathematical
statistics and statistical modeling. The theory of nonparametric
systems is based on local approximation
methods, in particular algorithms for nonparametric
estimation of different kind of dependency from
observation of input-output variables of the object.
The article presents a nonparametric model for the
group of spinning objects with delay. In the work we
show in detail the results of numerical studies
showing that the use of nonparametric algorithms
allows predicting process performance with sufficient
accuracy
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
One of the key areas of interdisciplinary research is to
ensure public safety. In order to solve a number of
problems within this area we can effectively use
information technology and, in particular, an
automated pattern recognition technology and
identification of objects on digital images. There are
addition problems in objects identifying process
besides eliminating the influence of ambient light,
angle, items of clothing and headgear. To ensure the
applicability of the recognition approach to public
security issues it must meet requirements of the high
processing speed, the replenishment capabilities onthe-fly
list of known images, and the low
computational complexity of algorithms. The article
deals with the main approaches to the recognition and
identification of objects on digital images based on
statistical approaches, as well as neural network
models. We have allocate their basic features and
principles, provided a brief description of each
method. Consideration has been made in terms of the
application for the problems of public safety, in which
there is importance of the speed of the identification of
the object, the ability of quickly learning for the
system to accept new images and simultaneously
process a plurality of input images. The analysis of the
existing approaches has shown that none of them
satisfy at least one or several needs, which are defined
by domain problems of public safety
TO THE APPLICATION OF THE SEVEN TOOLS OF QUALITY CONTROL IN HIGHER MILITARY EDUCATIONAL INSTITUTIONS
The article notes the importance of identifying and
taking into account factors affecting the quality of the
educational process. To solve these problems the
collection, processing and analysis of various data are
required. In higher educational institutions, it can be
achieved reasonably and conveniently using the
application of "seven tools of quality control".
Differences between civil and military institutions of
higher learning determine not only the features of the
educational process, methods for achieving quality of
teaching, but also the specificity of the "quality"
understanding. This article discusses and explains the
use of three of the seven tools of quality education
control in the higher military educational institutions.
According to the authors, the specificity of these
institutions is more close collaboration between the
processes of the quality management system (QMS) in
comparison with civilian educational institutions. In
military academies when the causes of
nonconformities in the educational process are
eliminated, the processes of the cadets’ "second half of
the day" are simultaneously improving. In this regard,
the scheme of processes, process maps and other
documents of the QMS of the military institution will
be significantly different from similar documents of
the civil. The forms of checklists proposed in the
article, the methods of applying the Pareto and
Ishikawa diagrams are of an applied nature
General algorithm of knowledge learning, skills and habits mastering in the process of academic discipline with the use of informational technologies is described in this article.
A more efficient use of road transport can be reached both by increasing the carrying capacity of the car and the average speed on the road. Due to limiting the safe load on the axle of the vehicle, a more promising solution is to increase the average speed on the road. Restricting car traffic speed on the roads with asphalt-concrete surface is due to the traffic safety, defined as resistance, steerabililty, vibrations of steering wheels and braking dynamics of the vehicle. The first three factors are influenced by the functional characteristics of the suspension and the state of the road surface. The share of agricultural vehicles mealage on the roads with improved surface does not exceed 65%. Nowadays, 40% of traffic volume and 9% of transport mealage are due to the transportation from the field and to the field. The aim of this work was to study the vibrational load of the load-carrying system and the driver, as well as the vehicle speed during the harvest time. To carry out theoretical research we used mathematical model "vehicle-road" system proposed by V.P. Tarasik. As a result of research we obtained the dependence of the acceleration of the front axle on the vehicle speed. The results showed that the maximum acceleration of the front axle is observed at a speed V = 20 km / h, which corresponds to external influences 1.54 Hz (9.7 rad/sec). The peak values of the vertical acceleration amounted to 5.80 m/s 2. The correctness of the mathematical model was verified by comparing the results of theoretical and experimental research in the mode of uniform motion. The experimental determination of the vibrations of the vehicle sprung mass was carried out using the sound level meter and spectrum analyzer OKTAVA-101 AM, which is equipped with a vibrational pickup AP 98. The given calculations showed that the relative error of the results of theoretical and experimental research is 3.94%, the average value of an error at a confidence coefficient of P = 0.95 is 4.76%, which confirms the correctness of the mathematical model. The studies showed that if the speed is between 14 to 40 km / h, the vibrational load on the driver is from 1.42 m/s 2 to 2.82 m/s 2, that is 2.5 ...3.5 times the sanitary standards set by the requirements of the CH 2.2.4/2.1.8.566 - 96