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ISSN 2227-6017 (ONLINE), ISSN 2303-9868 (PRINT), DOI: 10.18454/IRJ.2227-6017
ПИ № ФС 77 - 51217, 18+

CALCULATION OF THE SHARE OF THE 3D PHASE IN THE MEHANOACTIVATED GRAPHITE BY THE SECOND ORDER OF THE RAMAN SPECTRUM

Posted in 2018, ENGINEERING, Issue №10(76) October 2018 | 0 comments

Mechanoactivation (MA) of graphite due to intense elastic-plastic deformations and spatial accumulation of effects leads to nonequilibrium processes, changes in electronic states and chemical bonds of carbon atoms. Raman spectroscopy is a standard non-destructive tool for characterizing crystalline, nanocrystalline and amorphous carbon structures. In addition to the generally known parameter R1 = ID1/IG, the degree of disordering in the work determined the fraction of the 3D phase in MA powders by splitting the second-order S2 line of the Raman spectrum. It shown that the processes of amorphization and the formation of the 3D phase in MA powders proceed in parallel and are not dependent.

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INDICATORS OF PERSONAL PREDISPOSITION TO INSIDER ACTIVITY

Posted in 2018, ENGINEERING, Issue №10(76) October 2018 | 0 comments

Internal (insider) threats to information security have come to the fore due to the improvement of hardware and software information protection. A leak of intellectual property or trade secret caused by the employee’s accidental or deliberate actions may lead to irreparable damage to the organization. This article offers indicators of personal (predisposition) to commit insider actions. These data can be used to identify workers who are prone to the manifestation of insider behavior.

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METHOD FOR DETERMINATION OF OPTIMUM FREQUENCY OF SPATIAL MODULATION FOR MEASUREMENT OF THREE-DIMENSIONAL GEOMETRY OF COMPLEX PROTECTIVE OBJECTS BASED ON PHASE TRIANGULATION

Posted in 2018, ENGINEERING, Issue №10(76) October 2018 | 0 comments

A method for determining the optimal frequency of spatial modulation for measuring three-dimensional geometry based on structured illumination and phase steps is proposed in the paper. The method is based on the construction of the amplitude-frequency characteristic of the measuring path according to data obtained during the light formation process, implementing the Gray code. As a result, this method of measurement makes it possible to develop a universal control algorithm for a measuring complex that provides the measurement of three-dimensional geometry by the method of phase steps with the smallest error for arbitrary light scattering properties of the surface.

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MINI SPECTROMETER FOR SMARTPHONE

Posted in 2018, ENGINEERING, Issue №10(76) October 2018 | 0 comments

The article discusses the creation of a mini spectrometer for a smartphone to obtain and process spectra in the range of 400-760 nm and display them on the smartphone screen. A mini spectrometer for a smartphone is used as a combined autonomous system enabling users to perform spectroscopic measurements in real time in the field. The results of processing measurements can be stored in the smartphone memory or can be transferred to a remote station for better processing.

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ESTIMATION OF SPEED OF GRAVITY DURING SOLAR ECLIPSE IN 2018 IN MOSCOW

Posted in 2018, ENGINEERING, Issue №10(76) October 2018 | 0 comments

The article contains the results of the comparative experimental estimation of the speed of gravity obtained during the measurement of tidal phenomena during a partial solar eclipse on August 18, 2018, in Moscow. The tidal extremum at the experimental setup has been observed more than 10 minutes earlier than the eclipse maximum, which indicates a higher rate of gravitation relative to the speed of light in a vacuum. The possibility of expanding the study of the speed of gravity interaction within the solar system is shown, which enables a more accurate forecast for flights to distant planets. It is recommended to determine the moment of the extreme of the solar and tidal forces when tidal forces of the Moon act perpendicularly to the solar forces.

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MAIN FEATURES OF APPLYING THERMAL METHODS AT DEVELOPMENT OF DEPOSITS OF HIGH VISCOSITY OILS AND NATIVE BITUMENS

Posted in 2018, ENGINEERING, Issue №10(76) October 2018 | 0 comments

The article is devoted to the topical problem of high-viscosity oil and native bitumen extraction during the development of hydrocarbon deposits. The state of deposits with high viscosity oil and native bitumen is presented; mostly these are the deposits in the territory of the Republic of Tatarstan. The most successful proven pilot-industrial technologies for extracting high viscosity oils and native bitumen are given; their features and advantages are noted. Particular attention is paid to the combined technology based on combining thermal and wave effects of the impact on the reservoir. The proposed solutions have proved their effectiveness, both as a result of scientific and technical research and under the conditions of field trials.

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MINIMIZATION OF NEGATIVE IMPACTS OF PIG-BREEDING COMPANIES ON ENVIRONMENT

Posted in 2018, ENGINEERING, Issue №10(76) October 2018 | 0 comments

The production of livestock products has a significant negative impact on the environment. The following issues are especially acute: storage, processing, and disposal of manure. One of the ways to solve this problem is to reduce the annual yield of manure and emissions in pig-breeding enterprises. This can be achieved by implementing the recommendations given in the article and applying stress-free technologies for the reproduction, rearing, and fattening of pigs. The stress-free technology of keeping pigs has a great potential for introduction into production from rational nature management.

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THEORETICAL AND NUMERICAL EVALUATION OF COLLECTIVE ANT BEHAVIOUR

Posted in 2018, ENGINEERING, Issue №9(75) September 2018 | 0 comments

It is known that insect colonies, especially ants, act and solve various necessary tasks in a very distributed manner, keeping high level of robustness. Insect colony algorithms, based on the insects’ behaviour, have received large attention in various applications such as task allocation, house hunting, etc., showing very good results in solving particular NP-Hard problems. In this paper we analyse a variation of foraging algorithm that originates from the ant colonies behaviour. We discover theoretically and using the numerical simulations the conditions, which lead to a known self-destructive behaviour, also referred as the Ant Spiral of Death.

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STUDY OF PROGNOSTIC OPPORTUNITIES OF THE IWIZARD-E SYSTEM

Posted in 2018, ENGINEERING, Issue №9(75) September 2018 | 0 comments

The article considers prognostic capabilities of iWizard-E, an intelligent decision support system designed to help entrants choose their future career. A series of experiments was performed; various samples containing individual characteristics of students and information about their graduation from the university were processed followed by recommendations for choosing a preferred direction. After that, the real data were compared with the option proposed by the system. The F-measure was used as the criterion. It is established that “iWizard-E” allows creating effective forecasts.

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DATA MINING APPROACH TO EFFECTIVENESS ANALYSIS ISSUE OF AUTOMATED NON-DESTRUCTIVE CONTROL METHODS

Posted in 2018, ENGINEERING, Issue №9(75) September 2018 | 0 comments

The article describes the analysis of the effectiveness of automated non-destructive testing methods within the framework of the problem of clustering data on the application of short-wave electromagnetic radiation in flaw detection. Research methods are as follows: Kohonen self-organizing maps within the Data Mining approach. The relevance of the work lies in the fact that in connection with increasing requirement for quality and reliability of manufactured products, physical methods of automated control of metals and products from them, which do not require cutting out samples or destroying finished products, become increasingly important. The author noted the general features of the methods of short-wave electromagnetic control of products. The article substantiates the effectiveness of the Data Mining approach to the approach of constructing a hypothesis on the interrelationships of data groups for non-destructive testing of products. As a tool, the method of self-organizing Kohonen maps was chosen. An example of a part of training data and neural network configuration parameters performing the task of visualization and clustering is given. The resulting matrix of distances and a map of clusters are shown, further directions of research are presented, which consist in the development of methods for computer image processing within the framework of automated nondestructive testing systems.

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NECESSITY OF INFORMATION FLOWS AUTOMATION IN THE WORKPLACE

Posted in 2018, ENGINEERING, Issue №9(75) September 2018 | 0 comments

The main tasks for any manager of an enterprise include: making the company competitive, being the market leader, creating and implementing an operational management structure, ensuring high efficiency of staff. Each department of the enterprise requires good organization, which ensures the provision of up-to-date and comprehensive information for the management of production processes. Consequently, the enterprise needs to implement programs in the management processes that ensure the speed of processing and the reliability of information, documentation, and data for decision-making. However, today, not all organizations have automated the performance of production tasks related to the specifics of their activities. The presence of these and other issues determines the relevance of the research topic.

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MANAGEMENT ALGORITHM OF FEED PREPARATION AND DISTRIBUTION SYSTEM AT PIG-BREEDING ENTERPRISES

Posted in 2018, ENGINEERING, Issue №9(75) September 2018 | 0 comments

The functioning scheme of the feed transportation, preparation and distribution system at pig-breeding enterprises is presented in the article. Based on the functioning scheme, the algorithm for managing of feed cooking and distribution system has been developed, which allows to optimize the process of pig feeding and produce it in a semi-automatic mode. Optimization of operating modes means the remote determination of the thickness of the lard of the pigs with the subsequent automatic adjustment of the volume of the feed and its formulation in accordance with the received data.

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PROTECTION OF CONTROL DEVICES AND ELECTRIC WELL PUMPS FOR RURAL WATER SUPPLY FROM LIGHTNING OVERVOLTAGE

Posted in 2018, ENGINEERING, Issue №8(74) August 2018 | 0 comments

Electronic control schemes with the protection of submersible motors against emergency modes are currently being used for the reliable operation of well pumps of rural water supply. Elements of schemes of control devices of well pumps can fail when exposed to atmospheric overvoltage.A study on the reliability of the control devices and well pumps protection from lightning overvoltages was carried out on control devices developed at Smolensk Research Institute of Agriculture (they passed state acceptance tests).The analysis of emergency failures of the observed control devices and electric motors of well pumps has shown that the main cause of damages of semiconductor and other circuit elements is induced by high voltage from lightning discharges in control lines and electric network wires. In case of no protection against lightning overvoltages, the induced high voltage, penetrating into the control circuit, tends to close to its ground through its elements. The lack of grounding of the zero wire of the overhead line of the network is very dangerous for control devices. Current-limiting resistors and limiting diodes (suppressors) were used in the control circuits for reliable protection of the control circuit elements against lightning overvoltages. A varistor unit is used to protect the electrical submersible motor. Before the beginning of a thunderstorm season, it is necessary to check the presence of grounding of the neutral wire of the network. The use of current-limiting resistors and limiting diodes (suppressors) in control lines of control allows to significantly reduce the effect of lightning overvoltages on the elements of the control circuit for downhole pumps. The use of a varistor unit eliminates the failure of electric motors of well pumps.

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ANALYZING COOKING RECIPES WITH MACHINE LEARNING

Posted in 2018, ENGINEERING, Issue №8(74) August 2018 | 0 comments

Recently, recipe analysis gaining popularity among recipes recommendation systems. They address problems of finding and advising recipes, good ingredient pairings and even inventing new recipes. Ingredient pairings are studied in order to supplement flavour-based heuristics with statistical approach and build the compatibility model of the components in the cuisine. In this paper we find similarities between cuisines given recipes using the following techniques: Neural Network classifier and SimRank algorithm. In this paper we applied machine learning algorithms to the “gourmet” data. More precisely, we tried to find similarities between cuisines of different countries, ingredients by analysing ingredients of the different recipes.

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TECHNOLOGICAL ASPECTS OF MODELS CONSTRUCTION FOR OBJECTS OF OIL AND GAS INFRASTRUCTURE

Posted in 2018, ENGINEERING, Issue №8(74) August 2018 | 0 comments

The questions of organization and construction of processes for designing oil and gas facilities that require an iterative approach to the use of information technologies are considered in the paper, especially when transferring the project from one specialist to another. Based on the mathematical model, the advantages of a dynamic interrelated mode are compared with a sequential one. It is indicated that this construction is possible due to the use of AutoCad Civil 3D, namely due to the so-called quick links. Thus, the capabilities of software environments determine the digital aspects of the technological design organization.

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INVESTIGATION OF THE INFLUENCE OF ELASTIC TOOL RELEASES ON THE ACCURACY OF MACHINING DURING MILLING

Posted in 2018, ENGINEERING, Issue №7(73) July 2018 | 0 comments

The article deals with the problem of increasing the accuracy of machining when milling blanks with end mills. It is shown that as a result of the cutting force of the cutter, elastic depressions of the milling cutter occur, which affects the accuracy of the dimensions obtained. In order to predict the value of the elastic depressions of the milling cutter, it is suggested to take into account the outset of the milling cutter from the chuck and the moment of inertia of the section of the cutting part. As a result of the research, a design model has been constructed to determine the amount of elastic depressions of the end mill. The numerical values of the equivalent diameter of the cutting part of the milling cutter for the most common designs are determined in accordance with GOST.

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INFORMATION-LOGICAL MODEL OF DSS INTELLIGENT OPERATIONAL DIAGNOSTIC SYSTEM

Posted in 2018, ENGINEERING, Issue №7(73) July 2018 | 0 comments

The article is devoted to the development of the information-logic model of the decision-support system for the intelligent system of operational diagnostics of technical systems on the basis of detailed functional modeling of the decision-making process on the current state of the diagnosed object based on the results of previously made decisions by the expert and a priori information received from active monitoring devices as a result of the normal operation or testing with the use of stimulating effects of a special kind.

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TOWN DEVELOPMENT OPTIONS FOR PROTECTING RESIDENTIAL AREAS FROM ROAD NOISE WHEN MODERNIZING URBAN ROADS

Posted in 2015, ENGINEERING, Issue May 2015 | 0 comments

General consideration of road noise as a discomfort factor is discussed. Performance of various town development methods for ensuring acoustic comfort within residential areas is compared.

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HEAT TREATMENT INFLUENCE EVALUATION ON RADON-222 EMANATION FACTOR IN BUILDING MATERIAL

Posted in 2018, ENGINEERING, Issue №6(72) June 2018 | 0 comments

Building material production is based upon processing of various natural raw material, i.e. of rock. One of the kinds of the processing is heat treatment and namely burning of raw material. In the present paper, there has been made an attempt to evaluate, what influence heat treatment exerts on changing the emanation factor of Radon-222. Selected samples of raw material were subjected to phasic burning. Determination of Radon-222 emanation factor was made after each burning phase. The obtained results allowed expose change dependability on the quantity. There has been made an analysis of experimental and calculated data. A conclusion has been drawn that a part of radon and radium is emitted into the environment while burning. The obtained results practical application will help forecast Radon-222 emanation factor and makes it possible to regulate the characteristic by means of changing the burning temperature. This will allow reduce the population irradiation dose of Radon-222 and its daughter decay product.

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THEORETICAL PREREQUISITES TO INVESTIGATION OF TRANSVERSE STATIC STABILITY OF VEHICLES

Posted in 2018, ENGINEERING, Issue №6(72) June 2018 | 0 comments

The tilting of the vehicle corresponds to a lifting of the propeller above the supporting surface, in which the roll angle of the frame reaches a limiting value and its further movement in the direction of the list under the action of gravity and inertia becomes irreversible.

The purpose of these studies was to find an algorithm for determining the angle of the transverse static stability of the vehicle by weighing along the supports of the structure in horizontal and oblique positions at small angles of inclination and obtaining an angle of static stability using calculations.

Research objectives: develop an experimental-analytical method that allows determining the angle of transverse static stability without the use of expensive stationary stands.

The main criteria for the stability of the vehicle against tilting are the characteristic of its geometric parameters and the location of the center of mass relative to the propulsion device, which determines the boundaries of static stability using so-called limiting angles. When the vehicle is positioned on an inclined support surface corresponding to one of the limiting angles, a tilting occurs under the action of only gravity forces. If we take into account the influence of other forces other than gravity, we should bear in mind the critical angles characterizing the onset of overturning in the case under consideration. [1, P. 78], [2, P. 15].

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