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

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

Featured articles

MAIN PROBLEMS OF ENSURING FOOD SECURITY OF THE RUSSIAN FEDERATION IN TERMS OF IMPORT AND DIFFERENTIATION OF THE POPULATION BY INCOME

Posted in 2016, ECONOMICS, Issue December 2016 | 0 comments

The article presents a system of interrelated elements to ensure food security of the Russian Federation. The targets for successful import substitution are proposed and presented the estimation of its role in the achievement of food security. The authors have analyzed dynamics of consumption of basic foodstuffs in Russia of 2005-2015. Detected qualitative differences in the structure of food consumption in the context of “poor” and “rich” segments of the population. System of measures to achieve quality and sustainable food security of the Russian Federation are offered by the method of flexible targeting.

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COMPUTER ALGEBRA APPLICATION FOR MEASURING INSTRUMENT QUANTITY OPTIMIZATION FOR MATERIAL BALANCE RECONCILIATION

Posted in 2016, Issue December 2016, PHYSICS AND MATHEMATICS | 0 comments

The problem of optimization of the number of measuring devices for refinery material balance reconciliation is considered. The algorithm for minimization of measuring devices quantity for data reconciliation and identification all flows is designed. Arrangement redundancy measuring devices algorithm is proposed. Heuristic algorithm for gross error detection is developed. Computer algebra system is used for solving these problems. The practical implementation of the research study results for refinery material balance system design is described.

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ERRORS THAT AFFECT THE PROCESS OF IDENTIFYING AND MODELING DIAGNOSED SYSTEM

Posted in 2016, ENGINEERING, Issue December 2016 | 0 comments

The article describes the main types of errors encountered by researchers when using cross-correlation method proposed by N Wiener in diagnosis of highly technical systems.

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CHANGES IN FUNCTIONAL ACTIVITY OF RAT THYROID FOLLICULAR CELLS AFTER LOW-DOSE EXPOSURE TO DDT IN POSTNATAL DEVELOPMENT

Posted in 2016, Issue December 2016, MEDICINE | 0 comments

Thyroid follicular cells function after long-term exposure to low doses of dichlorodiphenyltrichloroethane (DDT) during postnatal development was studied. Evaluation of thyroid hormone profile, immunohistochemical examination and serum quantification of proteins mediating iodine supply and organification in thyroid cells showed that DDT-induced hypothyreosis is caused by downregulation of sodium-iodide symporter first in peripheral and than in central parts of thyroid lobes in puberty followed by enhanced expression of thyroid peroxidase and its further downregulation.

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THE PROBLEMS OF DYNAMICS AND CONTROL WHEN FINISHING OF BODY PARTS

Posted in 2016, ENGINEERING, Issue December 2016 | 0 comments

For designing machines and purpose the optimal treatment regimens need to perform dynamic quality of the elastic system of the machine on the basis of imitating modeling of technological systems during the cutting process. When finishing of body parts in some cases, problems arise with a high enough dynamic quality of the elastic system of the machine, as the workpiece has, as a rule, sufficiently high rigidity. The simulation modeling allows to obtain reliable qualitative and quantitative characteristics of the process being modeled. In the article the mathematical description of the dynamic model of milling machine taking into account the main mechanisms of the excitation process in multi processing.

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THE EFFECT OF CUTTING FLUID AND GRADE OF ABRASIVE WHEEL ON G-RATIO AND SURFACE ROUGHNESS IN PROCESSING OF TITANIUM ALLOY

Posted in 2016, ENGINEERING, Issue December 2016 | 0 comments

The research shows an effect of water-based cutting fluid and grade of highly porous abrasive instrument on surface roughness, wheel wear and G-ratio of titanium alloy. The result of research shows the relations between changing parameters in grinding by wheels with “G” and ”I” grades. The greatest impact of the grade of abrasive wheel on G-ratio and Ra was observed in processing at heavier modes with cutting fluid, which has lower lubricating effect. The cutting fluid has the greatest impact in grinding by soft wheels at heavier modes. The wheel with “I” grade and water-based cutting fluid with trisodium phosphate Na3PO4 additive are recommended for grinding with minimal wheel wear, minimal surface roughness and absence of surface burnings at considered conditions.

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STUDY OF THE BLOW EVENLY STRETCHED PLATE LYING ON THE BASE

Posted in 2016, Issue December 2016, PHYSICS AND MATHEMATICS | 0 comments

Examines the impact of a massive body at evenly stretched (compressed) plate, lying on the ground. The total displacement of the plate is considered elastic, and local to the contact is elastic-plastic. Considered a common approach in the analysis of the attack on the center of a rectangular or circular plate lying on the base of the Winkler or an endless plate on the surface of an ideal incompressible fluid. When calculating the main characteristics of the impact (force of contact interaction, its maximum, the moment of achievement, duration of impact, coefficient of restitution at impact) important is the consideration of the initial impact velocity, the magnitude of the external influences on the body and the plate, the state of material bodies. the analysis of the dynamic function of the influence of the «plate – base». The collision is considered in the framework of the theory of S. P. Timoshenko, which neglect wave processes in a small area of contact. The solution of the quasistatic contact problems for elastoplastic bodies, which are in good agreement with numerical and empirical results. For large local plastic deformations can be neglected elasticity of the material in the contact area, use the solution to rigid-plastic contact problem and to investigate rigid-plastic collision. The asymptotic results are in good agreement with analytical and numerical solutions to the problem of hitting the half-space and an endless plate and can be recommended for engineering calculations.

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STUDY OF INFLUENCE MIXED REINFORCING STRENGTH GYPSUM COMPOSITES

Posted in 2016, ENGINEERING, Issue December 2016 | 0 comments

The article discusses the prospects of the micro-hybrid gypsum composites with polypropylene and basalt fibers. The analysis of the impact of selected fibers on the properties of of gypsum plaster. Full central orthogonal two-factor experiment with a change of each factor on the three levels have been carried out. Analysis of the results was carried out using the software package «STATISTICA». The introduction multimodulus possible to increase the strength fiber gypsum composite compression more than 2 times, tensile bending by 70% compared to the control composition.

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RESEARCH OF THE NATURAL OSCILLATIONS OF THE ROTOR STEAM COMPRESSOR UNIT

Posted in 2016, ENGINEERING, Issue December 2016 | 0 comments

The importance of the study of the “rotor-housing” system dynamics is caused by its strong influence on the vibrational state of the gas turbine engine. Knowledge of the dynamic properties of complex products is required at all stages of development and design.
Therefore, the purpose of research, contained in this article is to carry out modal analysis steam compressor unit rotor, taking into account the gyroscopic effect.
The first part describes the creation of a three-dimensional finite element model of the rotor. At the same time, the three-dimensional solid models of parts built in the NX8.5 software for nominal size was used as a input data. Props was considered stiff.
The second part presents studies of the natural oscillations spectrum of the rotor steam compressor unit using the developed FEM. The problem was solved by the use of a supercomputer, “Sergei Korolyov”.

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EVALUATION AS A STIMULUS DYNAMICS TEKSTFORMATION IN THE SCIENTIFIC COMMUNICATION

Posted in 2016, Issue December 2016, PHILOLOGY | 0 comments

The article discusses the role of evaluation in science communication. The purpose of the study is to clarify and describe the mechanism of formation and deployment of new knowledge in the scientific text. It is alleged that one of the cognitive mechanisms tekstoobrazovanija process is the evaluation. Substantiated special kind of evaluation for scientific spheres – cognitive assessment. The practical significance of the study is determined by the ability to use its results in teaching stylistics course and culture of speech, in the preparation of teaching aids, in practice editing and machine referencing the scientific literature.

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