Key words and phrases: data analysis; managerial analysis; monitoring and measuring; quality management system; strategic and operational management.
Abstract: The paper studies the link between the processes of quality management system and functioning of the elements of technical systems of automated control. The matters related to the practice of implementation of quality management system processes in educational institution are discussed.
Key words and phrases: onstruction and mode variables; CTS flexibility; energy and resource saving of CTS; integrated synthesis; interval uncertainty; static and dynamic characteristics of CTS; system of automated control.
Abstract: The paper formalizes the task of integrated designing of energy and resource saving CTS and systems of automated control over their modes in case of uncertainty of physico-chemical, technological and economic input data. Integrated synthesis of energy and resource saving CTS in conformity with the strategy of top-down programming involves solving of the following problems: at the first stage alternative options of CTS are generated, these meeting the requirements of flexibility; at the second stage alternative options of the system of automated control over CTS modes are synthesized and the best option of the control system is selected (unless the desired quality of control over the modes within the system of automated control is reached, one of the following decisions is made: a) selecting a new more complex class of systems of automated control; b) correcting dynamic characteristics of CTS; c) transfer to a new type of hardware for CTS); at the third stage construction and mode (control) variables of alternative complexes “CTS – system of automated control” by vector criterion of energy and resource saving is optimized, alternatives are compared in pairs in order to select the best CTS. Integrated designing of flexible continuous process of azopigments synthesis and the system of automated stabilization of its modes under interval uncertainty of kinetic coefficients of chemical reactions and separate technological variables is illustrated.
Key words and phrases: compatibility principle; energy efficiency; energy expenses restrictions; inheritance
principle.
Abstract: The task of optimum implementation of production planned task is formulated; it takes into account restrictions of energy resources utilization at each moment of task implementation and integrals for the total period of plan implementation. The paper proposes the solution to the problem based on the principles of inheritance, maximum compatibility and monotony in energy.
Key words and phrases: chemical technological systems; information links between the tasks; multi-ranged chemical production; system analysis; tasks of computer-aided designing; techniques of combined problem-solving.
Abstract: The paper proposes the technique of implementation of the main stage of project design for multi-ranged chemical production; it includes technological calculations, hierarchy of tasks solved in the course of project implementation, information links between the subjects, iterative process of combined problem-solving.
Key words and phrases: computer-aided information system; ecological safety; mathematical modeling; nature-industry system.
Abstract: The paper studies mathematical methods and instruments used in making project and managerial decisions related to ecological safety of the environment.
Key words and phrases: 5-column span-rectification; design and technology problems of energy-saving; heat and energy accumulation; heat pumps; high temperature spray drying; interflow heat transfer; polluted industrial sewage; thermo-transformation; types and ways of energy-saving; types of energy production equipment; vortex tube.
Abstract: The paper presents systemized, briefly reviewed and analyzed data on the types of energy production equipment, ways and means of energy-saving as well as problems arising in the course of their implementation. The essential role of construction and technology decisions and developments is shown. The examples of 5-column span-rectification and high temperature spray drying are given.
Key words and phrases: apple juice; drying efficiency; drying kinetics; drying time; energy consumption; foam; foam-mat drying.
Abstract: The paper deals with optimization of drying time and energy consumption in foam-mat drying of liquid bio-materials. A clarified apple juice mixed with methylcellulose in mass concentrations 0,5; 1,0; 2,0 and 3,0 % was whipped in a blender to generate foams of different density varying from 0,21 to 0,45 g/cm3. The foam samples in layers of 6, 12 and 26 mm thick were then dried in a drying tunnel using air at 55 °C flowing past the sample surface at a superficial velocity of 0,7 m/s. Experimental data were interpreted in terms of drying kinetics and energy performance. It was found that the drying rate of foamed juice depends on foam density and its characteristics, as well as on the layer thickness. Shorter drying times were obtained for thinner layers of foams of the same density. A distinct minimum of a drying time was obtained for foam density of 0,21 g/cm3 induced with 1 % methylcellulose. This foam exhibited the highest drying efficiency and the lowest energy consumption.
Key words and phrases: carbon nano-technology; inductive heating; industrial synthesis of carbon nano-material.
Abstract: The paper studies the synthesis of carbon nano-materials in the units with inductive heating of catalyst. The way of implementation of the process of production of carbon nano-materials by method of gas-phase precipitation on the surface of metal catalyst heated by inductive currents is proposed. The results of experimental research in the possibility of synthesis of carbon nano-materials by the given method are presented.
Key words and phrases: alkylation; azo-combination; decantation; diazotization; izomerization; low temperature cracking; nano-materials; octane number; structural water (one-molecular, 43-molecular).
Abstract: The paper presents the results of the research into the application of nano-structural materials as catalysts and initiators in the processes of organic synthesis.
Key words and phrases: food technology; functional foodstuffs; instrumental technological typography; integrated designing; processing of grain materials; quick gravitation flows; segregation; system of computer-aided designing.
Abstract: The paper presents the main scientific direction of the Department “Production Equipment and Food Technologies” of TSTU. The methods and the set of fast working algorithms for solving the tasks of modeling and optimization in the course of designing flexible automated plants in terms of uncertainty of physical, chemical, technological and economic data are developed. The methodology and software for integrated designing of technological processes and systems of control as single automated complex are created; the algorithms and programs for simulated modeling of these complexes “technological object – CAD” are designed. The paper works out the theoretical basis for determining the amount of segregation and migration flows under shift deformation and quick shift flow of disconnected spherical particles. Thus, to forecast the dynamics of concentration fields of heterogeneous particles of conditionally binary mixture it is necessary to have information about conventional physic-mechanical properties of particles and grain materials and determine the only experimental kinetic characteristic (segregation coefficient) for the given pair of mixture components. The value of segregation and migration flows is determined on the basis of the particles size, structural and kinematic parameters of the flow (shift velocity and porosity). The technologies for combined dairy products and confectionary products with improved organoleptic, physico-chemical and microbiological indexes and extended shelf life, contributing to the maintenance of people’s health.
Key words and phrases: cavitation; dispersion; dissolution; emulsification; extruding.
Abstract: The paper studies the analysis of cavitation influence on liquid. It is shown that cavitation intensifies significantly most chemical technological processes in liquids. The examples of cavitiation technologies application for intensification in hydro-mechanical and mass transfer processes and destruction of substances are given.
Key words and phrases: changing of extrudate size; rubber mixture; screw and rolling machine; thermoplasts waste products; total shift amount; the degree of sub-vulcanization and plasticization.
Abstract: The paper studies theoretical grounds of determining the total shift amount in processing of polymer materials on rolling and screw machines and molding channels of extrusion heads. The experimental research into evaluation of changing of cross section of extrudate size is carried out; rational values of total shift amounts in the screw channels, molding head channels during forge-rolling are determined; these correspond to the given parameters of quality for polymer materials.
Key words and phrases: CAD; galvanic processes; geometric models.
Abstract: The paper describes the system of computer-aided designing for galvanic processes of different metal surfaces, various construction parameters, control effects and criteria types. The aspects of input of graphic information on cathode part shape are studied in detail.
Key words and phrases: cardiovascular system; hemodynamic; intensive therapy; LabView medium.
Abstract: The paper presents mathematical description of cardiovascular system with pulsing heart and implementation of the model in LabView medium. Cardiovascular system is presented in the form of sequentially linked 14 elastic chambers. It is shown that the results of modeling coincide with clinical observations.
Key words and phrases: altax; benazol P; alternating current; captax; cyclogexilamin; direct current; morpholyn; sulphenamid.
Abstract: The paper studies the problems of theory and practice of electro-synthesis of substances on direct and alternating current. The processes of electro-chemical production of different organic substances using alternating and direct current are studied. The patterns of oxidization and reduction of initial and intermediary organic substances as well as the conditions for forming the links –S–N–, –S–S– and benzotriazol cycle are given.
Key words and phrases: cathode reaction; charge; diffusion; ethylene glycol; hydrogen ions; iron; limiting stage; water; steel.
Abstract: The paper studies the influence of the nature of separate solvent and content of mixed solvent of the system Ñ2Í4(ÎÍ)2–Í2Î on kinetics and mechanism of the reaction of hydrogen emission on iron cathode. It is shown that the nature of the slow stage is determined by the type of molecules of the solvent, solvating the cathode surface. It is proved that by changing the nature and content of the solvent it is possible to transfer from slow charge to the limiting stage of re-combination Íads, and vice versa, thus changing the conditions and level of hydrogen absorption by solid phase.
Key words and phrases: assumed natural strain method; four-node solid-plate element; hybrid finite element models.
Abstract: On the basis of the first-order solid-plate theory, proposed in earlier authors’ papers, the hybrid stress, strain and stress-strain quadrilateral ANS four-node plate elements are developed. All hybrid solid-plate elements are based on the unified technique that gives an opportunity to assess their advantages and disadvantages. For instance, a hybrid stress-strain quadrilateral ANS element permits the analytical integration, which leads to a very simple structure of its stiffness matrix. At the same time the hybrid stress ANS quadrilateral exhibits a superior performance in all plate problems considered but requires a numerical large size matrix inversion.
Key words and phrases: differential equations of caratheodory’s type; minimal sets; generalized periodic
solutions.
Abstract: The paper introduces the notion of generalized periodic solution to the differential equation of caratheodory’s type. The existence of such solutions is grounded. It is shown that every solution included in minimal set is generalized periodic.
Key words and phrases: apriority limitation; functional differential inclusions; impulse effects; switch over
convexity (expandability); Volterra’s operator by A.N. Tikhonov.
Abstract: The paper studies functional differential inclusions with A.N. Tikhonov’s volt multi-notional reflection possessing no property of expandability of values switch over as well as possessing this property (in the latter case these inclusions are studied with impulse effects). For such inclusions matters of solutions continuality are considered. The paper establishes the link between the apriority limitations of the set of all local solutions of the system and implementation of the set of solutions of the distance in the space of summed functions from any summed function to its value. The paper estimates the distances from the set in advance function having special form to the solution of the studied system. The conditions to meet the density principle and “bang-bang” principle are formulated.
Key words and phrases: composites; deformation ability; durability; limit of prolonged resistance; physical and empirical thermo-fluctuation constants.
Abstract: The paper studies the regularities of the strength and deformation durability of veneer in a wide range of loads and temperatures. The values of physical and empirical constants, determining its durability are produced. The influence of various operation factors on the constants values is studied, thus enabling to forecast the durability of veneer.
Key words and phrases: deformation; destruction; reliability; reinforcement; structures; tension.
Abstract: According to the results of technical and visual examination of buildings, structures and bearing loads of construction elements the reasons for accidents and deformations are revealed; the existing classifications are supplemented; the effects of defects and deformations on the bearing capacity of construction elements are found out; the ways of reinforcing the basements and structures are proposed. The directions of scientific research, the obtained results and the ways of solving the urgent problems are described.
Key words and phrases: creative Olympiad environment; creative competence; creativity; innovative economy; Olympiad movement.
Abstract: The paper studies theoretical and methodological aspects of designing of the university education environment, which is aimed at the development of personality’s creativity and creative competence through students’ participation in Olympiad movement in the University; the opportunities of Olympiad movement at the stage of professional self-determination are shown.
Key words and phrases: modeling of learning; modeling of teaching.
Abstract: The model interpretative nature and its quantitative formulation constitute the most appreciated characteristics of models. At the present paper, an Intelligent Editor for modeling teaching and learning is developed. System helps students to develop modeling skills. The most complex task in OR consist in problem formulation and model formulation. In this process is necessary to translate the problem formulation from the verbal model to mathematical model. Here is proposed an Intelligent Editor in order to help students in model-building process. The main objective of the present paper is to analyze the design and work with the Intelligent Editor. The system was implemented in C++ for microcomputer.
Key words and phrases: Civil war; Communist Union of Youth; creative potential; revolution.
Abstract: In October 2008 Komsomol celebrates its 90th Anniversary; Komsomol used to be the most popular youth organization in the home history. The paper deals with the preliminary and early stages in Komsomol activities in Tambov province.
Key words and phrases: archetype; documentary; esthetic system; elite; genre synthesis; intertext.
Abstract: The paper reveals specific features of art phenomenon in present-day Russian literature of women prose illustrated by work of T. Tolstaya, L. Ulitskaya and V. Tokareva.