Key words and phrases: communication channel; indication functions of hindrances; stability to hindrances.
Abstract: Mathematical models of signals and deliberate hindrances with reference to a communication channel with remote stationary objects are considered. The use of set of indication functions of hindrances for increase of stability to hindrances of the channel of radio communication is offered. The example of use of indication function with some deliberate hindrances is presented.
Key words and phrases: automation of designing; power systems of communication enterprises; synthesis of the optimal structure.
Abstract: The paper presents the developed algorithm for computer-aided design systems, uninterruptible power supply AC and DC connection for businesses, including a selection of the optimum system architecture of power, current distribution network and security devices with regard to the levels of intra-interference. The program is developed and the design process of power supply system for microwave links is implemented on a practical example.
Key words and phases: artificial neural networks; control systems; filtration; forecasting; forecasting of technological parameters; hybrid systems of smoothing of hindrances.
Abstract: The article considers a forecasting technique of indicators in control systems of technological processes on the basis of artificial neural networks application. It is shown that for dimension decrease in such models it is expedient to take a preliminary filtration of the initial information and, thus, to build the hybrid models including both algorithms of preliminary processing of the information with functions of a hindrances filtration and predicting algorithms on the basis of neural networks.
Key words and phrases: increasing the accuracy; measurements errors; method of investigation; thermo-physical properties.
Abstract: A brief description of thermal conductivity and thermal diffusivity of the measuring technique is presented. The formulas for theoretical estimation of measurements errors of thermo-physical properties are obtained. The recommendations for optimal implementation of the measurement process and for follow-up processing of experimental data are delivered.
Key words and phrases: automated control systems of technological proc-esses; housing and communal services; power resources; quality.
Abstract: The article explains the necessity of conducting technological account in the processes of production and distribution of housing-and-municipal services. Decisions enabling to save power resources at the expense of reduction in over-expenditures, on the basis of application of the automated control systems of technological processes are proposed.
Key words and phrases: determining factors of the process; the impact of the electric field; intensification of the extraction mechanism.
Abstract: The effect of the direct current electric field on the chaga extraction process is investigated; the mechanism of the intensification process and its determining factors are revealed.
Key words and phrases: electrisation; fluidized bed; inflammation; microencapsulation; space charge; static electricity.
Abstract: The paper discusses the processes of electron transport in a fluidized bed apparatus with microencapsulated vitamin E. The modes of drying to ensure fire and explosion safety of static electricity are established.
Key words and phrases: diffusion properties; forging; high-density polyethylene; plastic deformation; solid phase; solid-state extrusion; ultrasonic treatment.
Abstract: The paper presents the results of ultrasonic influence on the process of solid-state ram extrusion and forging of polymeric materials. The effect of ultrasound on the technological process parameters and generated properties of the processed materials is shown. The experimental data of operational and physical-mechanical properties of polymers, proving the feasibility of using solid state technology with superimposed ultrasonic vibrations to obtain products made of polymers with improved performance for various industries are given.
Key words and phrases: emitters; foam breaking; oscillating system; ultrasound.
Abstract: The article is devoted to the development of ultrasound equipment for the destruction of foams and to research of efficiency of its application. The equipment with the transducer in the form of flexural vibrating disk is developed. It is shown that the use of high intensity ultrasonic oscillations can accelerate the process of deposition of foams. On the basis of the analysis of the experimental studies results of the process of foam breaking the authors recommend the modes and conditions of ultrasonic influence on beer foam and foam created with a blowing agent of sodium laureth sulfate type.
Key words and phrases: CASE-technology; confectionery products with functional purpose; jelly candies; rheological properties; system analysis; the technical-chemical control; technological scheme.
Abstract: The paper proposes the CASE-model of the process of developing new types of confectionery products. Its application in the development of formulations for functional purpose jelly candies and the process of their manufacturing are considered.
Key words and phrases: automated calculation of formulations; cheese product for functional nutrition; conditional optimization of multicomponent product.
Abstract: We propose one of the possible methodologies of solving some practical problems in the design of multicomponent dairy products on the example of cheese product developed on the basis of the two-level software module. The first level involves computer modeling formulation of the product in the management environment of the created database of nutrient composition of food raw materials, intermediate products and finished products to meet the needs of different population groups. The optimization of the basic formulation of sequential quadratic programming method is implemented on the second level with the use of material balance equations of the mixture preparation stage and conditions on its physical-chemical and nutrient composition.
Key words and phrases: recycling; roller plasticator pelletizer; roller-screw assembly; thermoplastic waste.
Abstract: The paper presents the comparative analysis of the effectiveness of the developed technologies of thermoplastics recycling; the technique was developed at the
Department through the available technologies.
Key words and phrases: 2.2’-dibenztiazolildisulfide organic disulfides;
2-merkaptobenztiazole; alternative current; chlorine; hydrogen peroxide; organic disulfides; oxygen; sodium nitrite.
Abstract: The main chemical and electrochemical methods of preparation of organic disulfides are considered. The advantages and disadvantages of different methods of organic disulfides production, including 2.2'-dibenztiazolildisulfide are identified. The direction to search for new technological regimes preparation of organic disulfides to symmetrical and asymmetric alternating current is set.
Key words and phrases: alternating current; cyclic current-voltage curves; electrode process; potassium hydroxide; preparative synthesis.
Abstract: The paper presents the study of the electrochemical behavior of nickel in the imposition of a sinusoidal alternating current. It is shown that the oxidation state of nickel in the obtained oxides depends on the temperature and frequency of the alternating current.
Key words and phrases: hardness of film-forming; polyesterification;
transesterification; ultradisperse catalyst.
Abstract: The paper studies the effect of ultradisperse catalysts on the kinetics of transesterification and polyesterification. It is established that the use of catalysts enables to reduce the time of the polyesterification process and increase the output on phase.
Key words and phrases: carbon dioxide; ñhemical adsorber; hemosorbent; power inputs; power savings.
Abstract: The paper studies various methods of drying test samples of lime chemical adsorber on the substrate. Comparative calculations on the number of energy and efficiency for each type of drying are made. The drying method of lime hemosorbent is selected.
Key words and phrases: Cavendish Laboratory; experimental studies in physics; electromagnetic theory; kinetic theory; Maxwell distribution of velocities.
Abstract: The paper describes the role of James Clerk Maxwell as an organizer and leader of one of the first physical laboratories – the Cavendish Laboratory in Cambridge.
Key words and phrases: mathematical and computer modeling; management; orientation; solar sail; radiation and reradiation; space missions.
Abstract: The paper discusses the materials related to the creation of spherical solar sails with variable reflection characteristics, for example, using a liquid crystal film. The options for constructing a mathematical model for controlling the sails are described.
Key words and phrases: carbon nano-additive; longevity; physical constants; thermal fluctuation concept; uniaxial tension.
Abstract: The optimum compositions of nano-modified bitumen are selected and developed; when the content of nano-additives reaches the amount of 0.01 and 0.001 they become the most robust and durable.
Key words and phrases: ceramic-polymer materials; impact strength; mesomechanics; shear stress; solid phase extrusion.
Abstract: The results of experimental investigations of the strength properties in shear and impact strength of polymer-ceramic composites based on ABS copolymer and UHMWPE. The discussion of the experimental data is based on structural studies with the use of thermo-mechanical spectroscopy, X-ray diffraction and X-ray analysis, based on the concept of local (?-relaxation process), segmental (?-relaxation process) the molecular mobility and dissipation properties in terms of physical mesomechanics and relaxation properties of polymer composite.
Key words and phrases: fullerenes; fullerene-containing carbon black; limit stretching; melt flow rate; polyethylene; thickness of the shell polymer tube.
Abstract: The paper shows the improvement of the quality of polymer products through the modification of the properties of fullerene-filled polyethylene. It is established that preliminary administration of fullerene carbon in the melt of polyethylene provides a better distribution of filler in the polymer, a corresponding increase in the strength characteristics during further processing, and preservation of operational properties of the shell when you change the design parameters.
Key words and phrases: dispersion of the filler; filled rubber; spectral characteristics of acoustic performance; vibration-damping properties.
Abstract: The paper presents the study vibration-damping properties of rubber, filled with wood in the form of dust and sawdust of pine and oak.
Key words and phrases: comparison of semiconductor devices; economic criteria; efficiency; optimization problem; power converters; reliability; selection criteria;.
Abstract: The paper examines the main criteria for the selection of semiconductor unit basis, which is optimal for the operation in converters of autonomous power systems. The formulation of the optimization problem of the selection of these semiconductor devices is produced. The comparison of the most common families of semiconductors on three main criteria – energy efficiency, economy and reliability is made; the solution of the optimization problem is considered.
Key words and phrases: induction motor; reducing electrical losses; slip-ring rotor; stabilization of the rotation frequency; synchronization.
Abstract: The paper considers the possibility of reducing electric power losses in the supply networks, electric drives of remote consumers receiving power from independent power systems, and containing in its composition induction motors with slip-ring motors, while rotors of similar engines are invited to feed a fixed or rectified current according to the authors' scheme.
Key words and phrases: early detection; environmentally hazardous facilities; indicator of associated attribute; monitoring.
Abstract: The paper proposes the system for monitoring technical condition of environmentally hazardous facilities; it uses the information on the indicators of associated attributes for the early detection of gradual changes in the properties and characteristics of the processes.
Key words and phrases: pedagogical experiments; statistical hypotheses; statistical methods; validation criteria of educational data.
Abstract: The problem of ensuring the reliability of the results of pedagogical experiments with quantitative data output by the integrated use of mathematical statistics is formulated and solved. The basic requirements for organizing pedagogical experiments, which are a prerequisite for their authenticity, are formed. Practical examples of application of mathematical statistics in real pedagogical experiments are considered.
Key words and phrases: audio-visual image; cartoons; children's psychology; clip thinking; impact of television; media education; mind control; moral development; preschool age; protection of the mind; television viewing skills.
Abstract: The aim of this research is to study the degree of influence of modern television on the development of children’s personality and their mental health. The prevalence of violence on the screen, especially in foreign cartoon films and their relationship with various behavioral abnormalities is focused. The comparative analysis of foreign and domestic cartoons is provided. The attention to the impact of modern cartoons, speech and language development in preschool children is drawn. The authors examine the effect of the children’s dependence on television, which damages their mental and physical health.
Key words and phrases: cognitive-discoursal approach; scientific writing; instruction content; post-graduate foreign language education; rhetorical structuring; teaching techniques and activities.
Abstract: The paper considers some aspects of teaching writing experimental research papers in English at the postgraduate level of foreign language education. The authors argue for the cognitive-discoursal approach as a theoretical basis for designing a course. Components of instruction content are identified. Step-by-step procedure of teaching, techniques and classroom activities are described.
Key words and phrases: Supreme Soviet of the USSR; memories; elections; newspaper voters, the deputies, the election process.
Abstract: Based on the analysis of publications of the regional newspaper of Tambov region, “Kirsanov commune” in 1950 the authors have made an attempt to identify the representation ordinary Soviet citizens from the Russian province on the mechanism of elections to the Supreme Soviet of the third convocation.
Key words and phrases: process approach to management; service; sphere of services.
Abstract: This article describes the definitions of core service terms from the standpoint of process approach to management.
Key words and phrases: reputation audit; reputation management.
Abstract: The author's definition of reputation audit is proposed. The stages of the reputation audit as part of reputation management organization are developed. The characteristics of reputation audit of industrial enterprises are studied.
Key words and phrases: “insight”; productive (creative) thinking; structural and dynamic characteristics; thinking process.
Abstract: Some mechanisms of the phenomenon of creative intention through the conceptual mapping (building graphical models) are revealed. The correlation of the structural units of mental activity allowing to formulate the conditions of its production is identified.
Key words and phrases: the average frequency of words; fill factor; epos; folklore; frequency; quantitative; sampling; rate synthetism; statistics.
Abstract: The article deals with the lexical and statistical structure of Uzbek folklore texts on the basis of quantitative comparative research: the average frequency of word forms, text coverability with different parts of the frequency lexicon, and the ratio of rare (random) lexical units.
Key words and phrases: channel of welfare; creative reserves; monetary and credit transmission; reserves of family income.
Abstract: The paper describes the scheme of scenario modeling of household income reserves. The channels of household QMS are considered. In particular, the scheme of regulation of the processes of quality of life of welfare channel is presented.
Key words and phrases: art; contemporary art; freedom; religion; the role of art in the life of a woman; the role of personality in art;
Abstract: The article explores the problem of interaction between the person and work of art in A.I. Herzen creative work; his view on the role of art in the life of a woman and contemporary art is discussed.