Pages Navigation Menu
Submit scientific paper, scientific publications, International Research Journal | Meždunarodnyj naučno-issledovatel’skij žurnal

ENGINEERING

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

EVALUATION OF PHYSICAL AND MECHANICAL PROPERTIES OF THE SURFACE LAYER ON THE INDENTATION DIAGRAM OF A SPHERICAL INDENTOR FOR A TITANIUM ALLOY VT3-1

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

A study of the titanium alloy on the indentation diagram of a spherical indenter is carried out, considering a typical indentation diagram. The diagram shows typical areas characterizing the process: loading, pausing and unloading. Mathematical dependencies used to calculate the indentation diagram are considered.A flowchart diagram of the installation for recording the indentation diagram of a spherical indenter is shown. The results of indentation and calculation of various parameters characterizing the surface layer for a titanium alloy are presented, the effectiveness of this method is shown as well.

Read More

TOPOLOGICAL OPTIMIZATION ALGORITHM OF MEMBRANE SRUCTURES

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The article describes an algorithm for optimizing the topology of membrane structures. The method of successive loading in combination with the finite element method was used in the research. We have chosen a triangular finite element with nine degrees of freedom as a standard. The paper considers an algorithm for the implementation of the finite element method in combination with Euler–Lagrange equation in the iterative method of adaptive evolution. It enables the optimization of the membrane topology. The thickness of the membrane is considered as a variable parameter of the membrane topology.

Read More

NON-VERBAL COMMUNICATION IN THE ANIMAL WORLD: MAPPING THE ELEMENTS OF SIGN LANGUAGES

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The second series of works on non-verbal communication in the animal world is dedicated to the concept of a mobile communicator implementation aimed at the processing of sign languages in the animal world. Features of the automated processing of sign language of Iguana Iguana are considered in detail. The behavioral forms of Iguana Iguana have been analyzed as well. The main features of skeletonization and image recognition of sign language elements are studied. The concept of interactive mobile application with a built-in expert system is presented. It contains visual behavioral language recognition of Iguana Iguana and the formation of recommendations for communication on behavioral strategies.

Read More

METHODOLOGY OF ASSESSING THE POSSIBILITIES OF FIELD TECHNICAL EQUIPMENT AND TECHNOLOGICAL EQUIPMENT OF FOOD SERVICE

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The article offers methodical approaches to the definition of an integrated indicator of quality of field technical means and technological equipment of the food service. We used the method of prioritization in order to improve the accuracy of calculating weights, which allows us to obtain a stable matrix for a certain number of iterations. The results of studies where the methods of qualimetric modeling have been used allows us to determine the capabilities of food service and technological equipment based on their quality indicators, as well as to compare existing samples with references or prospective technical means of the food service.

Read More

MODERN TECHNOLOGIES OF TRANSMITTING MEASURING INFORMATION FOR LIMITATION OF SERIAL NETWORKS OF OBJECTS OF OIL AND GAS INDUSTRY MONITORING

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The article substantiates the necessity of using wireless sensor networks in oil and gas industry and considers the possibility of using LPWAN-technologies of data transmission for the organization of sensory networks for monitoring technological parameters. The advantages and disadvantages of different approaches are presented in terms of sensor network organization and operation. The main producers, most dynamically developing in Russia and abroad, are presented, as well as the main features and characteristics of the solutions they offer.

Read More

CLUSTER ANALYSIS OF NOBILITY OF A DESIGN SOLUTION

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The paper describes the methodology and presents the application for estimation of the technical level of the technological equipment developed. The main feature of KANP_DOO application is that for the quick assessment of technical and economic indicators of the equipment designed we use weight coefficients, and the required number of analogs of the equipment used for analysis is set by the expert user of the application.

Read More

RESEARCH AND DEVELOPMENT OF ALGORITHMS AND SOFTWARE FOR REDUCTION OF THE DIMENSIONALITY OF MULTIDIMENSIONAL DATA

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

At processing large amounts of information, there is often a problem of reducing the dimensionality of data and keep its informative value. The paper presents the effective algorithms for reducing the dimensionality of data, describes their operating principles: the principal component method, the kernel method of principal components, the multidimensional scaling method, the local-linear embedding method, the isometric mapping method, and the flexible maps method. The software implementing the above mentioned algorithms is developed, this application was used to analyze medical data.

Read More

STUDY OF THE PROCESSES OF PURIFICATION OF WASTE WATER FROM WASHING CARS IN HYDROCYCLONE UNITS

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

Wastewater from washing cars for their re-use in the circulating systems of car washes is an important issue. Conducted Kazan state architecture and construction University study of the process of purification of oily wastewater in the pressure hydrocyclones allowed to develop a device for the treatment of wastewater from car washing. As a result on an experimental hydrocyclone installation of the studies on the wastewater from car washing, determined by the geometrical characteristics of pressure hydrocyclone for application in an industrial setting.

Read More

AUTOMATION OF PROJECT MANAGEMENT ACCORDING TO SCRUM METHODOLOGY

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The paper considers common project management methodologies, and presents the comparison of different methodologies. It is proposed to use Agile flexible methodology for IT project management, which includes a series of approaches to software development, and a comparison of existing project management systems. The example of the development of a new project management system is described, which includes a management model according to Sсrum methodology and a module for estimation of the team maturity level on the 1C platform.

Read More

ANALYSIS OF CONVENIENCE AND COMFORT OF SPECIAL CLOTHES FOR OIL-INDUSTRY WORKERS

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The results of research on the basic parameters of comfort and convenience of special clothes for oil-indusry workers are given in the paper. The survey conducted among the oil-industry workers of the Republic of Bashkortostan revealed the dissatisfaction with the state of health of some respondents during the performance of their basic workers’ moves during working time. The sets of special clothes for various professions were evaluated, and the results of the research enabled to justify the need to improve the design and technology of special clothing using high-tech sensors to assess the temperature and humidity in the space under the clothes.

Read More

COMPARATIVE ANALYSIS OF TECHNOLOGIES OF ADDITIONAL REALITY CONSTRUCTION

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

In order to use augmented reality in the museum space, we have considered types of augmented reality constructions, algorithms and methods for visualizing objects on the basis of various technologies as well as solutions for building augmented reality using markers and without them. According to the results of the analysis, the most suitable algorithms for constructing objects and methods for recognizing the location of their mapping are selected to solve a specific problem –the organization of the museum space.

The second aspect of the paper is the improvement of the “quality of introduction” of models of augmented reality into the real world and namely the increase of the realism of objects and “blurring” the boundary between computer graphics and objects in the physical world.

Read More

PROBLEM OF WATER SUPPLY IN LOW WATER REGIONS OF ASTRAKHAN REGION

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

There has been a steady deterioration of small watercourses state in the Astrakhan region over the past 10 years. Small watercourses are an important for national and the population of the northern regions of the region. There is a stable decrease in the flowability of surface watercourses. They are being silted which poses a serious threat to the flooding of populated areas. In the article it is proposed to use reserves of groundwater previously purified with the help of membrane technologies to solve the problem of providing residents of low water areas with water and the problem of having a superficial source of water supply that does not meet sanitary standards and cannot be used for domestic and drinking purposes.

Read More

ON THE PROBLEM OF LIMITING CAPACITY OF BOLTS DETERMINATION IN FLANGE CONNECTIONS OF BENDING STRUCTURES

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The article considers the principle of calculation of the limiting moment of tilt of the flanged joints of steel in frame structures occurring in forced bolts. Misprints in the existing regulatory documentation are identified. The significance of these misprints and their influence on the magnitude of the limiting moment of tilt are estimated. It is established that the misprint in the results of calculations based on the corrected formulas and expressions given in the normative documents can reach 24.24%. Corrected formulas for calculating the limits are given.

Read More

DEVELOPMENT OF THE DESCRIPTION METHOD OF DELAYS OF STANDARD CELLS IN DIGITAL INTEGRATED SCHEMES

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The article proposes a new approach for calculating temporal verification for standard cell libraries based on circuit simulation tools with regard to inter-circuit and in-circuit technological deviations necessary for statistical static time analysis. With acceptable speed and accuracy, the method ensures the compatibility with non-linear delay models. Unlike statistical static time analysis, it is not an iterative type and is performed only once for a given technological process.

Read More

EVALUATION OF THE USE EFFICIENCY OF SPECIAL FREIGHT CARS OF IMPROVED DESIGNS

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The article is devoted to the study of the main features of the evaluation of the use efficiency of special freight cars of improved designs. In the course of the analysis it has been established that it is inappropriate to use a traditional toolkit for carrying out such evaluation. In order to obtain reliable results, the evaluation procedures have to be carried out through the prism of an indivisible triumvirate of effects and namely from the point of view of the economy as a whole, and from the standpoint of the consumer and the owner of such freight cars.

Read More

PRINCIPLE OF STRENGTH BALANCE IN DECISION-MAKING

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The term “decision-making” can be interpreted both in broad and in a narrow sense. In the first case, it involves combination of at least two procedures: analysis of options and selection of the preferred one. In this paper we mainly talk about the procedure of the preferred option selection. Two theories of decision-making are considered: psychological and rational one. The first is a system of observations and statements about how people actually make decisions, and what mistakes they make. The second was created by mathematicians and economists and shows how to make decisions in order to choose the best option.

Read More

RECOGNISION OF CHARACTERS ON IMAGES WITH DISTORTIONS

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The paper presents the results of performance analysis of optical character recognition methods, which solve the problem of various kinds of distortions on images. The criteria for performance evaluation are proposed in the study. The sets of initial data for the measurements were prepared; the criteria for performance evaluation of the analyzed methods were estimated for each of the sets of source data. According to the estimation, the methods with better results of measurements were defined. The author proposed the algorithm for character recognition based on the selected methods.

Read More

EVALUATION OF QUALITY CONFORMANCE OF MINCED MEAT OF INDUSTRIAL PRODUCTION TO THE REQUIREMENTS OF TECHNICAL STANDARDS OF PUBLIC CATERING

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The article discusses technological properties of the beef minced meat of “Miratorg” and “Samson” trademarks. We carried out the evaluation of the quality of traditional culinary products prepared from cutlet and ground beef meat of industrial production. It is established that the quality of “Samson” beef conforms to the requirements of technical standards for public catering. We can recommend using it for the preparation of traditional culinary products from chopped meat. Products made from minced meat of the trade mark “Miratorg” are characterized by the increased loss of weight and low organoleptic properties. Recommendations are given on the development of new types of culinary products from minced meat with high fat content.

Read More

OPTIMIZATION OF PARAMETERS OF THERMAL PROCESSING OF SEMI-FINISHED PRODUCTS MADE OF DOUGH WITH THE USE OF HIGH-TECH EQUIPMENT

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

The article contains results of the study of technical and operational characteristics of steam convection units’ influence with different functional and design features on the parameters of heat treatment of semi-finished products from yeast, puff yeast, puff fresh and short-pastry. The tests were carried out in convection and vapor convection mode (in various combinations of steam and convection in the working chamber) with minimum and maximum loading of the working chamber. It is established that the quality of the finished products is not inferior to products made in a baking cabinet in traditional modes with the recommended modes of heat treatment in the steamer. To obtain products of consistently good quality, it is necessary to carry out the correction of processing parameters for each equipment model. We developed recommendations for the use of universal equipment for baking dough products on the basis of the data obtained.

Read More

DETERMINATION OF KINEMATIC PARAMETERS OF THE EXPERIMENTAL ASSEMBLY AT MIXING OF LOOSE MIXTURES

Posted in 2017, ENGINEERING, Issue № 5(59) May 2017 | 0 comments

During the mixing of loose mixtures, the so-called “dead” zones can appear. One of the ways to eliminate such zones is to coerce the working body of a mixer with additional reciprocating motion. The paper presents the substantiation of the choice of the mechanism for reciprocating motion actuating device of the working body in the mixer experimental assembly. The schemes and calculations of the design parameters of the four lever mechanisms are given, they allow to obtain the displacement of the output link within the specified stroke along the X axis. The choice of the eccentric-lever mechanism is justified.

Read More