To date, a necessary condition for progress in the field
of information technology is wide adoption of
standards and technologies of information systems
used for hardware and software products. Building
software of computing and information systems, based
on the ideology of open systems, allows to solve
successfully the problem of software portability on
platforms of various manufacturers, the problem of
interchangeability of components and, most
importantly, ensures the integration of devices and
users in a variety of computing and telecommunication
networks. It should be emphasized the fact that to date
the successful implementation of any significant
projects in the field of information and computer
technology, management of information and
telecommunications is not possible without
coordination of development with existing standards in
the field of information systems and, in some cases,
the development of new standards. In the transition to
a unified computing telecommunications systems
principles of information systems form the basis of
technology integration, the establishment of sectoral,
regional and national information infrastructures and
their interactions on a global scale. Therefore, we can
conclude that the technology of information systems
today is the working environment in which there is a
development priority
Based on the analysis of domestic and foreign scientific and patent literature, possible options to reduce weight of electro technical steel in magnetic circuits of electrical machines are explored. A search for the best options for the manufacture of magnetic induction motors stators technology aimed at improving the utilization of electrical steel and improving the energy performance of electric machines is carried out. All the variants are described and illustrated in detail in the drawings. It is pointed out the advantages and disadvantages of each method of manufacturing magnetic wires and the reasons why certain suggestions of technology of manufacturing magnetic circuits have not been implemented in mass production. The main indicators characterizing the manufacturability of constructive decisions are recommended. Economic indicators have been put in the basis of the choice of the optimal variant while designing the electrical machine. An optimal variant should be considered the variant in which all the technical requirements at lowest total cost are met. The latter should be understood not only the cost of materials and machine manufacturers, but also the cost of operation. The dependence of the energy performance of motors with modular designs of stators from the manufacturing technology is pointed out. The existing technology of the most mass electric motors series production, the following disadvantages are typical: low coefficient of utilization of electro technical steel; high specific material capacity, the cost of technology and labor intensity of production; low labour productivity and level of automation of technological process. Due to the fact that the possibilities of increasing of the machines’ specific weight characteristics due to the usage of new magnetic and dielectric materials are exhausted, it is advisable to change the technology of electric motors production, moving away from the traditional design
It is known that today one of the promising areas to effectively solve issues of energy saving, is the introduction of renewable energy sources. Despite the fact that the current solar PV stations have the main drawback associated with the high cost, the prospects of their application in autonomous systems of electrosupply are evident when they are used in combined (hybrid) systems. In such systems there may be other types of renewable and traditional sources of electricity. In addition, they produce heat. We have disclosed prospects of solar industry, and also, for solar energy assessment, we have examined analytical expressions allowing defining the energy derived from solar radiation for specific surfaces. Calculations start from obtaining statistical data gathered at meteorological stations which keeps records of the intensity of the total (direct plus diffuse) radiation on a horizontal surface, and the intensity of direct solar radiation. The article presents features of the calculation taking into account the climatic and territorial conditions on the example of the Krasnodar region. The given calculation procedure is the first stage for designing solar power plants. Further, the total capacity is determined by electricity consumers, as well as the quality requirements of electricity, including continuity of supply, embarking to the construction of the block diagram electricity supply. In this scheme, we must provide primary and backup power sources. It selects the main equipment of solar power plant (solar panels, inverters, storage batteries)
The article deals with urgent questions concerning activities of woodworking industries, which face tough economic situation. Nevertheless, these enterprises reveal a definite growth of output in some kinds of products, such as fuel pellets, window units, special timber assortments, etc. The problems about possible risks connected with equipment handling were identified, which has physical and intellectual wear, as most of it has been operating since 1980. On the basis of accomplished investigations of normative and technical sources the documents were specified, which establish safety regulations for operating equipment and requirements for risk assessment techniques. The necessity of their improvement is also determined. Taking into consideration peculiarities of management of woodworking production process, the analysis was carried out in order to estimate the factors, which influence the quality of mechanical treatment by the method of 5M. Following the observations and processing of statistical data it was established that equipment and personnel show the greatest impact on the quality of half-finished and final products. Risks evaluation method for woodworking industries is suggested with due account for equipment safety parameters, which includes determination of consequences, risk probability, risk level on scale factored “high”, “medium” and “low”. Much attention is paid to the items composed: rank matrix of two-factor model, with calculations of numerical values of risks, as product probability of occurrence and severity of consequences, and risk log. Three zones were appointed with the following risk levels: the first zone with weighting factor not less than 6, the second zone: 8-16, the third: 20-25. In course of investigation, it was detected that the highest risk factor, connected with equipment operation, is probability of mechanical injuries of hands and most possible – getting cuts. The flow chart of risks management during the woodworking production process is offered in accordance with all Union State Standard regulations R ISO 9001-2015 and GOST R ISO/MAC 31010-2011. The developed algorithm provides accomplishing performance of work on risks management in more available and short form with presentation of processing operations, actual doers, kinds of required normative documents and papers worked out within the enterprise
This article gives estimation of drying (liquidation)
ponds with subsequent selection of the most optimal
variant. For example, ponds № 1, 2 have the
calculations for the four drainage options: bottom
outlet, using a mobile diesel pumping stations,
through the siphon outlet, as well as the combined
option of draining (via a bottom outlet and mobile
pumping stations). The results of the calculation for
each of the cases were examined; the article
summarizes the estimated parameters, which allow to
visualize and choose the most optimal variant of
drying, depending on the time of evacuation
In the article we consider the questions of modeling of
temperature changes in the composting process, the
changes of oxygen concentration and temperature with
the air from the environment, produced the effect of
composting heat exchange mass with the environment,
the selected state variables and the control bioreactor, the
dependence of the coefficients of the system equations of
motion from the variable state of the object. This article
was prepared in the framework of the scientific project
16-48-230441 a(R) "Mathematical modeling of the
processes occurring in the automated installation for
year-round production of organic fertilizers in the
conditions of the Krasnodar region", financed by RFBR
and the administration of the Krasnodar region
The article contains analysis of consumption of
the main natural resources and their use in the
automotive industry. It is noted that during the
manufacture of the car pollution is obtained in 2
times more than in exploitation. It defines the
essence of recycling process (autorecycling) and
its ecological components. Activity on autorecycling
was expressed through the index of recycling
efficiency. We have analyzed the global car
fleet and average annual amount of automotive
waste, million tons per year. We point out that
one of the economic components of recycling is
the use of parts and mechanisms of machines
ready for further use, by qualitative technical diagnostics
with use of diagnostics devices. The
problem of utilization technological effectiveness
of cars as set of the properties characterizing fitness
of a design to utilization at the minimum
costs of time, work, means, providing the minimum
negative impact on environment and the
maximum involvement of components of the
written-off equipment in processing or a reuse is
considered. The main definitions and factors defining
utilization technological effectiveness and
its main indicators are given. The main ways of
increasing of utilization technological effectiveness
of cars are offered and the conclusion is
drawn that simplifying dismantling of the car on
automobile components, reducing dismantle time,
time of draining of everything, the liquids and oils
applied at operation, applying environmentally
friendly materials, etc., the designer can increase
technological effectiveness of the car at utilization.
As a result of the solved task we have got
ecological and economic effect of vehicle recycling
The article is devoted to solving the urgent task, which is improving the accuracy of transient simulation modes of power supply systems of sugar factories. The material of the article is exploratory in nature, manifested in the fact that we have studied various mathematical models designed for the analysis of symmetric modes of deep bar induction motors. A number of the provisions of article have scientific novelty, which lies in the approach to the choice of the coordinate system for modeling deep bar induction motors. We have formulated the requirements for transient analysis method for deep bar induction motor. We have developed the mathematical models of high-voltage induction motors in different coordinate systems for the analysis of steady-state and transient modes of operation. Based on double-circuit rotor model of induction motor, an analytical expression for the frequency characteristic of the deep bar induction motor is obtained. As an example, we have calculated and presented real and imaginary parts of the frequency characteristic of the induction motor type 2АЗМ-2000 with slip s = 1. The mathematical models of induction motors allow using mathematical apparatus more efficiently to explore different symmetrical modes of engines. The study proposed to use transients in the power supply systems of sugar factories for the analysis. The authors suggest an approach to modeling, which can also be useful for modeling induction generators
The NP-problem of discrete optimization of
consumption of non-renewed resources is considered.
The weights of edges of the graph of resources set cost
of consumed resources. It is offered to use the
transitions of discrete system conditions on the
complete graph with number of vertexes, equal to
quantity of discrete resources, for the problem
decision. The purpose of such system is construction
of a chain of the predetermined length and the
minimum weight on the complete graph. The problem
factor is factorial growth of number of variants of
chains on graph at linear growth of quantity of
resources. The main idea consists in a use of found
statistical regularities of transition ranks of discrete
system at construction of chains with the minimum
weight on graphs of the any size. Use of ranks allows
to abstract from concrete weights of transitions and to
find the property inherent optimum. In this article, the
structure of discrete system is presented and its
functioning in a mode of analysis of ranged decisions
is described. Distinctive feature of the presented
system is use of the generator of ranks, the generator
ranged chains and the statistics block. They are used
for definition of distribution of suboptimum decisions.
In addition, the article contains the description of
structure and functioning of discrete system in a mode
of synthesis of suboptimum decisions on the basis of
the found distribution of probabilities of local
decisions. Novelty of the offered approach to
construction of solvers of NP-problems is in using
empirical functions from ranks of local decisions to
control the search
The article describes the purpose, the device, the technological
process of work, and also the justification of
the parameters and operating modes of the sorting
nozzles of the seed separator by weight, dividing individually
the seeds of agricultural crops according to
their individual weight, thus ensuring the selection of
seeds with a large supply of nutrients, the energy of
germination and the growth force contributing to the
formation of the crop