№ 128(4), April, 2017
Public date: 28.04.2017
Archive of journal: Articles count 98, 245 kb

MODERNIZATION OF ZIL5301 FOR USE IN AGRICULTURE
DescriptionThe role of transport in agricultural production is considerable. It is a connecting link in a single technological chain of agroindustrial complex of the country. The successful production activity of agricultural enterprises depends largely on the proper use of available forces and means. One of such means is machinetractor fleet relating to technical basis of agricultural production. Its functioning is reflected in the whole cycle of production, from planting and ending with cleaning. Therefore, the use of the machine and tractor must ensure receipt of the highest possible efficiency at the lowest cost, as production cost agricultural production includes in its membership the costs of mechanized and transport works, which should be kept to a minimum. In this regard, transport processes should be carried out the most rational means. Rational application of those or other vehicles is based on ratios of basic load ratings, adaptability to the changing road conditions, terrain, improving functionality, improved adaptation to technical operation in the conditions of agricultural production. When choosing a vehicle, special attention must be paid to the size of the economy, the direction of its activities, the structure of commodity products, and the degree of its centralization. For successful economic activities of the agricultural enterprise it requires a different carrying capacity and terrain vehicles. At present, the majority of the automobile park of agricultural enterprises is cars and trains of general purpose, which have large load capacity and low permeability. In the agricultural enterprises of the Ryazan region today there are about 4.5 thousand commercial vehicles, mostly models of GAZ, KAMAZ and ZIL. The issue of reducing the cost of transport operation should be individualized for each sector because of its distinctive features (activity, volume of traffic, the structure of commodity production, the state of farm roads, etc.)

Description
The article deals with studying the ways of optimizing the amount of chemical additives in the woodconcrete material, i.e. arbolite, which contains foamed polystyrene gravel aggregate. To make arbolite honeycombed structure more conglomerated a nonreactive aggregate, i.e. hogged chips, has been partially replaced with foamed polystyrene gravel aggregate which has a mean particle size equal to a concrete pocket size. The article also deals with various additives to be used, taking into account the nonreactive aggregate type and its quality, the composite density and its reinforcement level. All chemical additives have been chosen to make the initial material more porous, to produce a film covering the aggregate surface and to speed up the process of concrete hardening. To solve to above problems a series of experiments was carried out, the latter studied various combinations of factors changing at certain levels. The results of studying the foamed polystyrene gravel aggregate influence on the arbolite structure and its characteristics were used to make a choice of the arbolite composition. The main criterion of the optimal amount of chemical additives has been considered the arbolite strength. The experimental data processing has resulted in the finite regression model which describes the chemical additive amount influence on the arbolite strength. The tables in the article show the levels of technological factors varying and the matrix of planning the experiments to be carried out in order to optimize the chemical additive amount. As a result of the research accomplished the optimal amount of chemical additives has been determined which enables to produce the arbolite with some foamed polystyrene gravel aggregate in its composition

STANDARDIZATION IN RUSSIAN FEDERATION. LAWS AND ORDER
DescriptionThe article provides comparative analysis of three laws in the area of standardization in different phases of its existence and development of our State: “About Standardization” 10.06.93 № 51541, “About Technical Regulation” № 184ФЗ (part III) and «About Standardization in Russian Federation” № 162ФЗ. It is noted that standards and other documents addressing standardization facilitate technical development, innovation in different spheres, quality improvement and competitiveness of industry, products and services. The authors of the article trace close interconnection between the state of the laws and the concepts of Russia’s development, change of goals, tasks and principles of standardization in relation to the changes in the country and in the world; analyze the experience of Russian standardization and evaluates innovations in the modern jurisprudence in this area. The authors of the article evaluate the laws in the area of standardization from the viewpoint of its importance and transparency for consumers based on its close correlation with the law “About Consumer Protection”. Additionally, they note the importance of these documents and standardization in general to the development of the country’s economy, its integration into the world sphere and achievement of technological leadership of the Russian Federation in different areas

THE STUDY OF LEARNING ALGORITHMS OF NEUROFUZZY SYSTEMS CONTROL OF BIOTECHNOLOGICAL PROCESS
DescriptionThe subject of study of this work was learning algorithm of neurofuzzy systems with different membership functions. In the prior works there are no published studies of such studies, making it difficult synthesis of neurofuzzy control system with new objects in the application of biotechnology, including technological agribusiness entities. A comparative analysis of learning algorithms of neurofuzzy system with different membership functions using the method of error back propagation and а hybrid method. For this we used a training sample that contains data of temperature and concentration of dissolved gas in the culture liquid: oxygen (pO2), carbon dioxide (pCO2) of a biotechnological process. It is shown that the hybrid method carries out training of a neural network for the number of periods is 23 times smaller than the algorithm backpropagation errors. The studies found that the twosided Gaussian membership function provides the smallest learning error of the network δ equal of 3,28•10–3, compared to the other, giving the largest error of training the neural network δ=0,138. Therefore, the task of running the fermentation process effective is the use a hybrid method of education and twosided Gaussian membership functions. According to the research, we can conclude that for the adaptation of neurofuzzy network ANFIS and fuzzy inference system Sugeno zero order to solve biotechnological process control tasks microbiological production efficiency is to use a hybrid method of education and bilateral Gaussian membership functions

Description
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

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 crossingover 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

TO SUBSTANTIATE A VEHICLE SPEED WHEN CONDUCTING HARVESTING OF FIELD WORKS
DescriptionA more efficient use of road transport can be reached both by increasing the carrying capacity of the car and the average speed on the road. Due to limiting the safe load on the axle of the vehicle, a more promising solution is to increase the average speed on the road. Restricting car traffic speed on the roads with asphaltconcrete surface is due to the traffic safety, defined as resistance, steerabililty, vibrations of steering wheels and braking dynamics of the vehicle. The first three factors are influenced by the functional characteristics of the suspension and the state of the road surface. The share of agricultural vehicles mealage on the roads with improved surface does not exceed 65%. Nowadays, 40% of traffic volume and 9% of transport mealage are due to the transportation from the field and to the field. The aim of this work was to study the vibrational load of the loadcarrying system and the driver, as well as the vehicle speed during the harvest time. To carry out theoretical research we used mathematical model "vehicleroad" system proposed by V.P. Tarasik. As a result of research we obtained the dependence of the acceleration of the front axle on the vehicle speed. The results showed that the maximum acceleration of the front axle is observed at a speed V = 20 km / h, which corresponds to external influences 1.54 Hz (9.7 rad/sec). The peak values of the vertical acceleration amounted to 5.80 m/s 2. The correctness of the mathematical model was verified by comparing the results of theoretical and experimental research in the mode of uniform motion. The experimental determination of the vibrations of the vehicle sprung mass was carried out using the sound level meter and spectrum analyzer OKTAVA101 AM, which is equipped with a vibrational pickup AP 98. The given calculations showed that the relative error of the results of theoretical and experimental research is 3.94%, the average value of an error at a confidence coefficient of P = 0.95 is 4.76%, which confirms the correctness of the mathematical model. The studies showed that if the speed is between 14 to 40 km / h, the vibrational load on the driver is from 1.42 m/s 2 to 2.82 m/s 2, that is 2.5 ...3.5 times the sanitary standards set by the requirements of the CH 2.2.4/2.1.8.566  96

Description
The article is devoted to solving one of the major problems in electric power industry, which is to simplify and improve the accuracy of simulation and calculation modes of complex electrical systems with using the frequency characteristics of the elements of the power system in generalized vector space. Article has an exploratory character, which is expressed that mathematical models of static elements of an electrical network are considered in the form of transfer functions of dependence of conduction on the frequency. A number of the provisions of article has scientific originality which is in the approach to the choice of the coordinate system for modeling static elements. It is offered the mathematical models air and cable transmission lines, generalized load, single reactors generalized vector space for analysis of steady and transient modes. As an example was calculated family of real and imaginary parts of the frequency characteristics of the AC70 line with different values of the length, lines with different section (AC70, AC 95, AC120), generalized load with different ratios of active and reactive power, various types of single reactors. Offered mathematical models allow exploring different symmetric modes of electric networks using more efficient mathematical apparatus

ERROR CHECK IN OPERATING CRYPTOGRAPHICALLY SECURE PSEUDORANDOM NUMBER GENERATORS
DescriptionAlgorithms and constructing schemes of trusted pseudorandom number generators (PRNG) based on multivalued codes of residue number system are presented. An algorithm for numerical control of the operation of arithmetic adder Zm, differing by the introduction of various rules for performing the operation of "forming" of the overflow flag bit and the correction operation of the supervision data adjusting is developed. A scheme for local control of the adder Zm, which differs from the known by introduction of the overflow flag bit generation scheme and accounting scheme of the supervision data adjusting is constructed. Endtoend monitoring scheme of modular adder control and key storage device (KSD) for holding the crypto key with residual class code is constructed. The proposed scheme differs from the known by additional memory page, overflow flag bit generation scheme and by accounting scheme of the supervision data adjusting. The results of a comparative evaluation of the developed pattern for local and endtoend monitoring of modular adder control with hardware redundancy are provided. Based on the results of the comparative evaluation it is expedient to use the modular control method in order to increase the reliability of the PRNG. At the same time, the developed algorithms and endtoend monitoring schemes ensure elimination of the fracture areas in the control and expansion of fragments of the local (intermediate) PRNG control with minimal hardware and time redundancy. Application field of the developed algorithms and control schemes are digital devices with cryptographic functions

Description
The article deals with the study of vehicles impact on the environment, since one of the main causes of air pollution are cars with internal combustion engines. One of the most important measures in the fight for clean air is the creation of an environmentally friendly transport. From this point of view, the most promising is the electric car, as the only solution to the problem of atmospheric pollution. In this article, the history of the development of modern electric vehicles, the advantages and disadvantages of their design, as well as the possibility of introducing electric vehicles into everyday life are considered. After the analysis, it was concluded that, in spite of the obvious advantages and the huge path that electro mobiles went through in their development, humanity is still not ready to refuse from cars with internal combustion engines, opting for electric vehicles