The article is devoted to the development of a compressor
type ozonator. It describes the design of a
high-productivity compressor ozone generator, which
can be used for industrial decontamination of mixed
feeds, water, milk, and in the system of presowing
treatment of seeds. This construction allows generating
ozone with high concentration to 5 g/m3 at high feed
air or oxygen from the compressor station (up to 2000
l/min). The article describes the design of the basic
elements of tubular ozone generator, examines the
factors influencing the productivity of the ozonator.
The proposed mathematical model allows calculating
the productivity of the ozonator when considering multiple
influencing factors. These factors take into account:
the parameters of supply voltage, such as the
magnitude and frequency of the supply voltage; the
configuration and geometrical parameters of electrodes
such as, the area of the electrodes, the configuration of
the surface of the electrodes and distance between
electrodes; parameters dielectric barrier; and the transported
gas parameters such as volume, temperature,
pressure and composition. Special attention is paid to
the design of the electrodes made of woven wire mesh
with mesh sizes from 1.5×1.5 to 2.0×2.0 mm. It is noted,
that such electrodes allow obtaining the maximum
productivity of an ozonator, and they do not lead to
overheating of the dielectric barrier, and do not output
down the generator. In the same way, the article presents
the results of the mathematical modeling
of ozone generator productivity while changing
various factors
Russia begins to work on the formation and
implementation of recycling systems for
decommissioned equipment of various kinds. The
article analyzes the shortcomings and possibilities of
creation of such a system in Russia; it gives
recommendations to address some of the issues of the
problem
Nigeria has the largest oil sands and bitumen resources
in Africa and is one of the main leading countries in the
world from the point of view of its significant potential
heavy oil deposits. Research of geological and physicochemical
properties confirmed that the Nigerian bitumen
is an important energy source and an alternative source
of hydrocarbon feedstock for the petrochemical industry.
Nigeria imports black oil for the petrochemical industry
and its heavy oil can act in place of this black oil. In
addition, researchers have successfully established the
possibility of producing electrical energy from this
heavy oil. Tar sands and bitumen are able to help
improve the economy of Nigeria
Disc tools are designed for the surface treatment of the
soil, as well as for loosening and preparing the soil for
planting, weed control and grinding residue, for
seedbed preparation without preliminary plowing in
the system of minimum tillage technology and after
thick stem row crops harvesting. It implements a disk
type implements include a disc mounted on the
individual rack. Classical instruments of this type are
made with a rigid stand mounting the cutter body to
the frame. In the classical working body attachment
scheme has a number of disadvantages. One of them is
the lack of a safety element. The proposed version of
the working body of the fastening using a spring strut
has the following advantages. When zooming in on the
disc obstacles (dense soil, bump, pit, stone), flexible
disk drives backward, up, down or to the side (left,
right) by the spring property (elasticity) of the curved
rack. This design reduces the shock load on the
bearing assembly, wherein the disc is returned to the
original position by passing earth and crop residues
without blockage. The purpose of structural changes
was to reduce the energy intensity of the surface
treatment process of the soil while improving
reliability
Here we present a brief survey of noise effects on
human’s organism in production conditions, including
noise effects on operators of machines and technical
devices. It is well known, that any biological organism
exists in balance with its environment. However, noise
effects being stress factors knock the operator of
machines and technical devices out of the working
rhythm and cause different kinds of health disorders
such as blood pressure increase, fatigue, disorders of
the central nervous system and gastrointestinal tract
and the like. All this may lead to accident situations,
reduction of labor productivity and quality of work.
Frequently health disorders start with hearing
impairment which leads to disorientation in the threedimension
space and malfunction. It is because the
hearing apparatus as biological system provides the
organism with sensory information and ensures selfpreservation.
In the noise conditions, these
characteristics are conflict: on one hand, the hearing
organ should possess high enabling capability to
receive positive signals, and on the other hand, in
order to adapt to the sound hearing and sensitivity will
decrease. The duration of noise exposure and the
number of years spent under influence of the noise are
also of great importance. Thus, it is obvious that
control of the noise and prevention of harmful effects
of the noise on machine operators are important
components of production process in the agrarian
sector
There were shown the possibilities of the use of pectin extract from fruits of fodder water-melons as a bioactive addition for enriching of flour and bread production of the functional purpose. There were determined the qualitative characteristics of pectin extract: the total content of pectin 1,2%, complex-forming ability Рв2+292,7 mg / g confirming its technological importance as a radioprotector and detoxicant in the production of functional products. There was stated the positive influence of the pectin extract on physical properties of dough and quality of bread. The use of pectin extract as an enriching addition will allow extending the line of bakery products of the prophylactic purpose, because it is connected with the necessity of the correction of different type of deficit of micronutrients in the organism of a modern man. The consumption of such bread will allow satisfying the day's norm of consumption in macro- and micro nutrients and will assist to extract the ions of heavy and radioactive metals from an organism
The market for functional food products is continuously
increasing and, according to analysts, by 2020 its
share will reach 40% of all food products. The development
of the healthy food has been gathering momentum
in recent years, the search for non-traditional
types of raw materials is constantly being conducted,
and new recipes for products enriched with natural
food additives are being created. In this regard, special
attention is paid to the production and use of powdered
food additives from plant raw materials. Theoretical
significance and practical applicability of powder
technologies in different years was substantiated by
such famous scientists as Deryagin B.V., Donchenko
L.V., Zimon A.D., Zubchenko A.V., Kasyanov G.I.,
Magomedov G.О., Paschenko L.P., Rebinder P.A.,
Tilesnik M.A., Yankhin E.D. In their opinion, using
natural food additives, it is possible to obtain functional
food products with specified chemical composition
and properties. The objects of our research were apricot,
grape seeds, pumpkin flesh, black currant and seabuckthorn
berries, spinach, apples and flour from lowfat
barley. In the course of the study, the effect of dispersity
of the obtained powders on their antioxidant
activity and frictional properties was studied. The expediency
of introducing powders into the composition
of multicomponent food products for enriching them
with carbohydrates, vitamins and microelements is
shown. The organoleptic evaluation of the produced
powders showed that they have high taste values. The
study of organoleptic and microbiological indices of
products enriched with such powders indicates prolongation
of their shelf life. As the main results of the study, we note the assessment of the chemical composition
of the powders from the investigated objects, as
well as the improvement of the technology of drying of
plant raw materials with sparing technological regimes
of its implementation
The article proposes an approach to constructing a
methodology for modeling managerial situations in the
construction of real estate objects using a hierarchical
system and choosing a developer company to be
charged with the construction of real estate. A
comprehensive methodology has been developed on
the basis of which it is possible to forecast problem
situations that arise during the construction of a real
estate object and conduct a scientifically valid choice
of a developer company
In this work, we consider the design and development of
neural network software module for prediction of
electricity consumption in the system of support of
decision-making power control. Two prediction models
support the software module: regression model and
neural network model, based on multilayer perceptron.
Software development to predict power consumption in
the system of decision-making today is one of the priority
directions in the Russian power industry. Therefore, the
work associated with the development of methods and
algorithms of forecasting of power consumption in the
power sector, is surely relevant
The results of the study of amino acids of white table
wines depending on the yeast strain, continuous contact
of wine with yeast biomass and the presence of
lees stirring are presented. The dynamics of amino
acids, which affect wine organoleptic characteristics
and the formation of wine defects, specifically, tyrosine,
methionine, threonine and lysine is shown. Conducted
researches made it possible to divide the amino
acids into three groups depending on the carrying out
the batonnage or lack of it. The first group consisted of
amino acids, the concentration of which practically has
not changed in the presence or lack of stirring. The
second and third groups include amino acids, the concentration
of which increased and decreased, respectively
during batonnage. The stirring of the wine with
yeast biomass facilitated to the activation of mass
transfer processes between cell and medium, and the
access of air lead to oxidation of some amino acids and
the change of its concentration. The absence of stirring
influenced to a slight increase in the concentration of
such amino acids as cystine, cysteine,
β-phenylalanine, serine, α-alanine, leucine and glutamic
acid. The experimental data allowed to arrange amino
acids in a row depending on the speed of release
into the medium: ά-aminobutyric acid >
glutamic acid > α-alanine > leucine