05.00.00 Technical science
-
Description
We have done the analysis of the possible connections in the real and technical systems of the process of choice the knowledge from the area of knowledge. It has been identified dependence the number of the straight connections in this system from the number of its elements. For this it was used an example of the technical systems of the process of choice the knowledge from the area of knowledge - the binary tree of the system of questions and answers, realizing the chose of the method of optimization from the va-riety of methods. In the technical system of the process of choice the knowledge from the area of knowledge have been defined and analyzed the straight and reverse connections, the connection of generation, the structural connections and the connection functioning. For these connections, the quantitative relationships were obtained
-
Description
The main application of tractors is in agriculture. The share of imports continues to grow in the structure of the agricultural machinery market. In recent years, many foreign tractors and agricultural machines, including John Deere, have been delivered to the fields of the Tyumen region. The rates of productivity and fuel-lubricants consumption for the agro-climatic conditions of the Tyumen region are not available for all tractors with agricultural machines. Therefore, for agricultural producers, their establishment becomes urgent. On the fields of agricultural enterprises of the Tyumen region, studies were conducted to establish the norms for fuel consumption and productivity of John Deere tractors with agricultural machines. The article presents the results of the study. For example, the productivity of a tractor in the «Malyshenskoye» conditions for a field located at a distance of 5-6 km and an average run length of 1,300 m can be in the range of 5.8-6.0 ha / h. Taking into account the natural and climatic conditions of the Tyumen region and the different physicomechanical composition of the soils, as well as the configuration of the fields and the run length during tillage, data were obtained of basic lubricants consumption. Recommendations on the use of fuel-lubricants consumption rates of modern tractors in the performance of various technological operations in agriculture will make it much easier to plan and calculate the operating costs of tractors with agricultural machines
-
Description
The article presents a mathematical model of the reliability of the flexible robotic manipulator, which establishes the relationship between the design parameters of the individual elements of the flexible section of the handling robot and the indicators of reliability section
-
Description
In this article we study connection between frequency characteristics of oil filter and lubricant system condition of internal combustion engine. Method is suggested, it allows to trace changes of technical condition of oil filter, engine oil, engine and to estimate a residual resource of working capacity up to maintenance
-
Description
In this article we study the connection between pollution extent of oil filter, hydraulic resistance and medium value of filter capacity for a certain period. We established following: if the maximum productivity of the filter is decreased, that maintenance of internal combustion engine is necessary. This value is connected with maintenance periodicity
-
NANODISPERSED CARBON PARAMETERS DETERMINATION FOR PLASMA CHEMISTRY ISOTOPE SEPARATION
DescriptionThe dust collection methods and apparatus, as well as heterogeneous system monitoring methods and devices were considered. The disperse particle counter was developed and tested. Shown that particle counter makes it possible to register a disperse phase presence by mass concentration over 310-14 g/m3 and to estimate a dust particle dimensions
-
DETERMINATION OF PARAMETERS FOR EFFICIENT COMBUSTION OF LOW-SULFUR FUEL OIL
DescriptionThe article presents the calculation of combustion of liquid fuel, which is determined by the air consumption for combustion of fuel, then the number and the composition of combustion products – flue gas resulting from burning fuel and the flue-gas temperature
-
Description
This article is dedicated to the study of the parameters of the artificial immune system for solving the polymorphic viruses’ detection problem. The goal is to define a vector of the immune system parameters that would ensure the minimum number of errors of the first kind, the minimum number of errors of the second kind and the maximum percentage of polymorphic viruses’ detection. That is, the most accurate classification of them as a malicious code, in relation to any theoretically possible vector of parameters of the artificial immune system. A distinctive feature of the studied artificial immune system is the use of a class of genetic algorithms that provide more efficient training of detectors. The configurable parameters of the system are: the algorithm for determining the proximity of the detector and the pathogen, which can be realized by determining the Levenshtein distance or by the method of adjacent bits; as well as the method of implementing the crossing-over operator, the method of implementing the mutation operator, the method of implementing the selection operator, the algorithm for determining the proximity of the detector lines. In addition, the article considers the expediency of using a distributed network of several nodes, each of which will have an immune system that will exchange data with other nodes of the network. As a result of the research, a set of optimal parameters was obtained in which the system achieves the maximum accuracy of recognition of polymorphic viruses
-
Description
Theoretical determination of power, spending on corn-cobs separation process (without regard of idling and harmful resistances) has been considered in the article. Recommendation on exception of transportation operations of cut stems and their mincing allowing to intensify the process of corn harvesting in cobs under stable power of engine in the expense of corn-harvester claw width increase (for CK-5 “NIVA”+ППК-4) with addition of one or more channels is given in the result of calculation.
-
Description
Now in different branches of the industry there is a need for the new equipment and mechanisms with the seized characteristics. Special requirements are shown 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 use of special or controlled asynchronous cascade systems of an electric actuator of cylindrical construction. One of the main difficulties is simulation and design of special systems of the electric drive. In this article, a new approach to determination of magnetic model parameters of the stator of a component of the controlled asynchronous cascade electrical drive of cylindrical construction is offered