Based on the theory of self-organization, we have developed an original method for identification of target functions students’ knowledge quality (SKQ) in the face of influencing factors uncertainty. The proposed system of external criteria for the models selection and control parameters allows to use the model for the effective management of the SKQ
The article presents results of the study of devices for
preparation of feed based on the relative helical drums.
In addition, we have created a method of calculation of
the drive, including motor power. We have given a
calculation sheet for relative helical drums of types of
5.1 and 3.1, as well as typical schemes of devices for
preparation of feed (feed-making machines) composed
of hollow equilateral triangular of hollow tetrahedrons
pyramids and hollow octahedra. The created method
of calculation of the drive was tested in the calculation
of power consumption of feed-making machines based
on spiral reels of 5.1 type mounted using hollow
tetrahedrons and spiral reels of 3.1 type, assembled
from hollow octahedra. It is shown that in the
calculation of the actuator, we should not only take
into account the mass loading of feed components, the
relative weight of the screw drum assembled with
wheels, for a symmetrical load location, but also a lot
of download components of feeds, arranged in a spiral
relative the drum asymmetrically to the axis of
rotation. Thus, summing up the power of the electric
motor, required for relative rotation of the screw drum
symmetrically loaded and also under asymmetric load
we define the motor power for the device for
preparation of feed, or feed-making machine
The method of control of the amount of flow area of the supply nozzles in tape conveyor on a hovercraft is considered in the article. The local system that implements the principle of direct action to control the thickness of the air cushion is shown. Based on the hydrodynamic model, the formula for the engineering calculations of values of the moving devices are determined
In this article we have considered the issues of forming a complex system of models of VADS (driver - vehicle - road - environment) in terms of the intensity of traffic on them. We have proposed the two-level model of governance system in DU-TP, which includes strategic and operational (current) management. The algorithm for management of this system including the movement of vehicles in different natural and climatic conditions, providing normative and actual parameters of the road has been studied. We also offer several levels of management exploitation of roads and traffic
The article contain the peculiarities of testing asynchronous
generator with sixzone winding on the basis
of the asynchronous motor series 4A100S4 and analysis
of obtained characteristics. Circuit parameters of
the stator winding can significantly affect the characteristics
of the asynchronous generator. Asynchronous
generator was tested with a stator winding connected
star, autotransformer and sectional winding. Use chastising
windings opens the possibility of applying various
circuits of capacitors and the load to asynchronous
generators, which in turn affect the efficiency and stabilizing
properties of the electric machine. Asynchronous
generators to test with sectional winding by confirmation
of theoretical calculations for determine the
most optimal scheme under connect capacitors and
load, testing the stator winding. The volume of testing
for asynchronous generators standard is not defined, so
we proposed testing method, taking into account the
design features of the stator winding. Asynchronous
generators were tested with the help of special equipment
with the use of analyzer of energy power quality.
Article contains characteristics of idling, short circuit
and others, considered the heat mode. On the basis of
the results we have determined the parameters of the
circuit, the efficiency and power factor of induction
generator
The article provides an overview of Express-methods
of quality evaluation and identification of lipidcontaining
plant raw materials (oil seeds) and its
processed products (oil cakes, oilseed meals, vegetable
oils, lecithins) using pulse method of nuclear magnetic
resonance. Development of express methods of quality
evaluation and identification of lipid-containing plant
raw materials and products of its processing is a
priority, as these methods are environmentally safe and
also allow us to regulate technological conditions of
refining processes, are characterized by low error of
determination, i.e., high precision, and, in some cases,
it is only possible to use because of its non-destructive
effects on the analyzed sample. Currently, we can
distinguish the following main directions of quality
evaluation and identification of lipid-containing plant
raw materials and products of its processing on the
basis of the pulse method of nuclear magnetic
resonance: assessment of quality and identification of
oilseeds (sunflower, canola, flax, soybeans);
evaluation of quality of products of processing of oil raw materials (cake and meal); the quality evaluation
and identification of vegetable oils; assessment of the
quality of the lecithins obtained from vegetable oils.
The methods of quality evaluation and identification of
lipid-containing plant raw materials and its products
are patented and have several advantages: short time (5
minutes) spent on the implementation of the single
analysis; eliminates the use of toxic chemicals; does
not require special training of laboratory personnel;
non-destructive character, which is especially
important for oilseeds from the point of view of
breeding work. On the basis of the conducted survey
we can conclude that the pulse method of nuclear
magnetic resonance has found wide application for
assessment of quality and identification of lipidcontaining
plant raw materials and products of its
processing, through rapid capabilities, high accuracy
and ease of analysis
This article analyzes the boundary problem model of transport of binary electrolyte membrane systems in the approximation of Ohm's law. Different methods of solution are proposed
In the article we have considered the mathematical models of turbulent boundary layer corresponding with condensation and evaporation. The expressions for accounting that effect have been derived. We have also compared them with the known experimental data
The purpose of research – the development of models
and methods of multiparametrical diagnostic the
research activities of scientific and pedagogical
collectives of educational institutions. The
problematics of research is improving the quality and
productivity (the efficiency) of research activities in
educational institutions. The problem of research is the
question of how to objectively and comprehensively
(in a complex) diagnose the research activities of
scientific and pedagogical collectives? The urgency of
solving specified problem is caused by the need to
ensuring a close relationship between research,
methodological and educational activities in
educational institutions. We have also to consider the
increasing role of clusters in the Russian economy,
cooperation and integration levels (steps) a system of
continuous education, etc. The authors identified the
parameters reflecting significance of research activities
of the scientific and the pedagogical collectives for the
scientific and educational community (social megaenvironmental).
When allocating indicators the authors
took into account that science - the social and cultural
phenomenon and the social institution, and the most
important aspect of the significance of the research
activity - in the innovative development of various
spheres of human activity. The applied methods of
research: mathematical modeling; methods of the
theory of graphs, sets and relations; methods of
"artificial intelligence" and the multi-parameter analysis of systems; methods of quality control (theory
of latent variables). Methodological bases of research:
systemic, cultural, competence, metasystem,
sociological, qualimetric and synergetic approaches
The article presents the design of hand mowers with cutter, consisting of the rotating screw and stationary segments. It also shows the results of experimental studies to determine the rational angle turns of spiral screw