The article presents innovative technologies and developed methods and devices for drying chicken manure. Ways of their optimization on the basis of screw aggregates and a calculation technique for introduction in production are offered. The results of a long-term research into the search for and development of innovative technologies for the construction of a methodology for calculating not only a device for drying chicken manure with subsequent introduction into production, but also a device for drying bulk materials of agricultural purpose are shown. An example of thermal calculation and selection of the parameters of a drying device is shown on the basis of screw aggregates
For different industries, there was a need of creation new equipment and mechanisms with enhanced characteristics. Special requirements are imposed to energetic and mass-dimensional indices of systems of electric drives as one of the main components of such devices. Mass-dimensional and energetic indices due to constructional features and the used management system will allow improving the use of special or controlled asynchronous cascade systems of an electric actuator of axial construction. One of the main difficulties is simulation and design of special systems of the electric drive. In the article, we offer a new approach to determination of magnetic model parameters of the stator of a component of a controlled asynchronous cascade electric actuator of axial construction
An algorithm for obtaining a complex of mathematical
models of electromechanical devices, which can then
be formalized and implemented in software, is
proposed and described. Until recently, the
implementation of this algorithm was possible only
with the manual derivation of all expressions, which
significantly hampered the work of researchers. The
appearance of such programs as Maple, Mathematica
and MathCAD provided the possibility to automate the
process of obtaining analytical calculations that allows
calculating any modes of any types of
electromechanical devices, reduces the likelihood of
errors and allows you to change accepted assumptions
and designations in the developed models. The choice
of the MathCAD program (in comparison with Maple
and Mathmatica) can be justified by the fact that
MathCAD has the most convenient interface, allowing
not only to perform mathematical calculations, but also
to present the results in ordinary mathematical
notation. The analytical results obtained in MathCAD
can be immediately included in numerical models
The importance of improving the quality of
electrical energy was growing along with the
development and wide implementation in the
production of valve converters and various highperformance
processing units, such as arc furnace,
welding machines etc. The main causes of potential
and existing non-compliances of non-sinusoidal
voltages can be joining sources and non-sinusoidal
reactive power sources, including resonant filters,
to existing electric grids without taking into
account their possible impact on the distortion of
the sinusoidal voltage. Transformers are affected
by the non-sinusoidal shapes of the curves of
current and voltage. The effect is characterized by
the fact that the harmonics of current and voltage
increase transformer temperature, compared to
purely sinusoidal current and voltage. The aim of
this work is to study the influence of higher
harmonics on power loss in power transformers.
Experimental study of operation of power
transformers was carried out on the developed
model of the transformer substation. The
experiments were conducted with different
capacities of transformers that have variables in the
range of 250-1000 kVA. By using programmable
voltage source a sinusoidal voltage is formed
containing the third, fifth, sixth, seventh, ninth and
twelfth harmonics. The level of harmonics is
changed in the range of 2-12 %
The article considers scheme of sewage treatment
plants AG-STOK of Novorossiysk trading sea port,
designed to clean the surface runoff from the territory
of industrial sites and residential areas to the norms of
discharge in the drainage network. The installation
includes a well-separator, a storage tank, mechanical
cleaning of solids on a mechanical filter, filtration
through a filter with granular loading and filtration
through a filter with sorption loading. The treated
runoff, which corresponds to the conditions of
discharge into the urban drainage network,
accumulates in a tank of clean water and is diverted to
the storm sewer network. There are: the scheme of
treatment facilities, the explication of equipment, a
photo of a mechanical filter, a filter with a granular
load and a filter with a sorption load. The indicators of
surface runoff correspond to the norms of the
maximum permissible discharge
The article reflects the relationship between the
parameters of research activities of students and the
characteristics of the educational environment in
higher education. It is known that the research activity
of students is an integral part of the educational
process, therefore, the parameters of research activity
can and should be indicator variables reflecting certain
aspects of the educational environment. According to
modern views, all types of research activities of
students (educational, research, scientific and practical
and research) is the most important mechanism for the
development of their research competence. In addition,
the parameters of research activities of students - the
reflection of the relationship of scientific and
educational activities in higher education, and this -
one of the most important factors of competitiveness
of the educational environment. The authors
substantiate that the parameters reflecting the research
activity of students characterize, first of all, such
aspects of the educational environment as its intensity,
social activity, dominance, coherence, mobility,
stability, reliability and efficiency. This is due to the
fact that the research activity of students is a transdisciplinary
process that depends on the same factors
as the educational process as a whole and is
characterized by the same didactic goals (tasks) as the
educational process as a whole. In identifying the
relationship between the parameters of research
activities of students and the characteristics of the
educational environment, the authors also took into
account the relevance of such a task as ensuring
continuity between levels of continuing education. The
theoretical significance of the results of this study is
that they can be the basis for further scientific
understanding of the problems of the quality of
education and the effectiveness of educational
environments, the practical significance is that they
can be applied in the systems of socio-pedagogical and
psycho-pedagogical monitoring and the effectiveness
of the educational environment, as well as monitoring
the student's personal and professional development).
Methodological bases of research: system,
sociological, competence, probability-statistical and
qualimetric approaches (leading methodological basis -
competence approach). Research methods: modeling;
methods of graph theory, sets and relations; systemiccognitive
analysis; methods of qualimetry (theory of
latent variables); methods of mathematical statistics
(first of all - the method of rocky scree); methods of
the theory of limits
We live in a world of rapidly developing information
technologies, where many organizations are related to
each other, forming complex information networks.
Therefore, storage, analysis and retrieval of
information is a very complex and urgent task. In
connection with the advent of search engines and
communications, millions of people are engaged in the
search and retrieval of information. Commercial search
engines, such as Google, use keyword search based on
logical queries. The main disadvantage of this search
is that it returns a lot of irrelevant information, which
leads to low accuracy. In this article, we focus on
building a semantic search system based on the
mapping of the ontological model. This includes
various stages of development of ontology, the phase
of indexing and information retrieval
We have conducted experimental and analytical
studies showing the relationship of constant and pulse
forms of current sedimentation on the physicochemical
properties of chrome coatings: adhesion
strength to the substrate, residual stress, fatigue life,
elongation and contraction, yield stress, and
endurance. We have shown the methods and modes
of use of dilute electrolyte of chromium plating with
organic additives, is capable of applying a chrome
coating on parts of agricultural machines, surpassing
the properties of the coatings obtained from
electrolytes that are recommended by the GOST
standards. The proposed hardening chemical-thermal
coating technology for chromium in the manufacture
and repairing of worn parts of agricultural machinery
(rods of hydraulic cylinders, journals of crankshafts,
spools, parts, gearboxes and transmissions, etc.),
identifies the consumption of additives modifiers,
proposed methods for their determination, confirmed
by patents for inventions. The proposed technology
of worn-out surfaces of parts of agricultural
machinery of layer-block structure of the chromium
coatings with improved properties. The influence of
modifying organic additives on the structure of the
intermediate surface film of colloidal trivalent
chromium compounds, which in combination with
the parameters of the bipolar pulse current allows you
to specifically adjust the physical and mechanical
properties of crystals of the deposited chromium
layer with a grid of cracks, and without them for the
required operating conditions of dry friction or oil environments, which increases the durability of the
parts during use. The increase in yield, at the current
6-8 %, to 4 times reduces the degree of
hydrogenation of the restored details, up to 3 times
reduces internal friction, roughness, improves the
limits of strength, toughness, elongation and
contraction, increases corrosion resistance up to 3
times, obtained chromium coatings
The article presents the analyzes results of the
deconstructive approach to the process of garment
designing, which consists in structural defects
modeling; it develops the systematization of projected
design effects based on the study of modeling defects,
analysis of their appearance and methods of
elimination. The purpose of the research is the further
development of designing methodology of structural
defects in sewing products
Based on the analysis of modern scientific approaches
to the construction of complex information-measuring
systems, we have formulated a circuit solutions model
of a distributed system of control of parameters of soil,
the implementation of which will allow to build
systems in small businesses