Belgorod State Technological University
Belgorod, Russia
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Yastrebinsky R.N.,Belgorod State Technological University
Problems of Atomic Science and Technology | Year: 2017

In work results of model calculations of weakening of radiations of the reactor in material on the basis of the modified hydride of the titan and Portland of cement contents, binding with a variation, on atoms of bor in him for an assessment of extent of decrease in density of a stream of thermal neutrons and level of gripping gamma-radiation are presented. The multi group method of calculation for the ANISN program is used. Introduction to composition of material of protection of the atoms of bor having the big section of absorption of neutrons in thermal and over thermal areas of a range allows to reduce significantly density of a stream of thermal neutrons and level of gripping gamma radiation. Values of coefficients of decrease in density of a stream of thermal neutrons and power of a dose of gripping gamma radiation on protection material layer thickness are calculated. The difference in extent of decrease in functionalities is caused by presence of gripping gamma radiation in over thermal area of a neutron range. © 2017, National Science Center, Kharkov Institute of Physics and Technology. All rights reserved.

Shukhov V.G.,Belgorod State Technological University
International Journal of Pharmacy and Technology | Year: 2016

This article summarizes major known methods of processing siliceous rocks containing iron oxides to obtain extended pigments of iron oxide, as well as a new energy-saving, environmentally friendly processing method developed by the authors. The iron oxide pigments are characterized by wide range of colors, high coloring power, good chemical resistance, high resistance to atmospheric and climatic conditions, toxic and logical security and relatively low price; the above makes them indispensable in many industries. The most important applications include the paint and varnish materials (PVMs), different coatings and polymers. Currently, the main consumer of iron oxide pigments is the construction industry. The production of volume colored paving flagstones according to Besser technology, colored wall blocks, colored bricks, chalk, gypsum, plaster and others have been approved. © 2016, International Journal of Pharmacy and Technology. All rights reserved.

Polunin A.I.,Belgorod State Technological University
International Journal of Pharmacy and Technology | Year: 2016

The article describes two mathematical models of the elastic ring dynamics when it rotates on supports in the course of processing according with mobile technology. One model uses the extendable center line hypothesis, the second - nonextendable. In this case, solution of partial differential equations that describe the dynamics of the ring, is very challenging. Thus, for a ring rotating on supports, using the non-extendable center line hypothesis, we obtain a partial differential equation of the sixth order, on the right side of which there is the second derivative of the delta function. Therefore, to obtain the equations and solve them, we perform the transition from a system of partial differential equations with constraints describing the behavior of the ring, to ordinary differential equations. We used the Lagrange formalism for derivation of the equations. The dependences have been obtained for cutting forces and internal friction forces acting along the generalized coordinates, taking into account the precession motion of the excited standing waves. The calculation results obtained by the models of natural vibration frequencies of the ring rotating on the supports at different speeds of rotation, are presented. © 2016, International Journal of Pharmacy and Technology. All rights reserved.

Perkova M.V.,Belgorod State Technological University
International Journal of Pharmacy and Technology | Year: 2016

The study examined a regional settlement system in respect of the aspect of the interaction between economics, sociology, geography, urban planning and development of regional management system. Regional settlement system is an open space system which variables can be described as a mixed way (quantitatively and qualitatively). Subsystems of a regional settlement system (natural and historical-cultural framework, transport, economy, population) are identified. The dynamics of the historical development of subsystems and their interaction are considered by the example of the Belgorod region which is a regional settlement system. A regional system is complex and interrelated by its elements and satisfies to the system concept of functional integrity. Changing the configuration properties of a territory leads to a change in its target function. © 2016, International Journal of Pharmacy and Technology. All rights reserved.

Vasilenko T..,Belgorod State Technological University
Solid State Phenomena | Year: 2016

The paper shows the possibility of production of the expanded clay aggregate with the use of electric steel melting slag up to 3.0 % produced by JSC “Oskol Electric Steel Works”. It was determined that at the temperature of 1170 °C the expanded clay aggregate with high strength properties and a high coefficient of swelling is formed. The preliminary thermal preparation of the samples with slag addition was at 500 ºC. An opportunity to use iron-containing waste was revealed which lowers the temperature of the expanded clay aggregate burning. By means of the X-ray phase analysis the mineral mullite Al5SiO9.5 was found in the resulted samples of the expanded clay aggregate with an optimal addition of slag which reinforces a glass phase of granules and strengthens it. The results can be used for production of the expanded clay gravel with the use of industrial wastes. The technological scheme of the expanded clay production with the use of waste can be carried out without making any additional capital investments. © 2016 Trans Tech Publications, Switzerland.

Doroganov V.A.,Belgorod State Technological University
Refractories and Industrial Ceramics | Year: 2012

Aspects of the modification of refractory concretes with different grades of Ludox nanosilica are discussed. It was established that the addition of nanosilica TMA to the binder in amounts no greater than 25% of the binder's weight increases the strength of medium-cement concretes and alleviates their softening. The grade of nanosilica that is optimum for super-low-cement concretes is AS-40. © 2012 Springer Science+Business Media, Inc.

Il'ina T.N.,Belgorod State Technological University
Chemical and Petroleum Engineering | Year: 2013

Methods are considered for sintering fine materials, and a requirement is demonstrated for classifying fine materials in order to select a sintering method, binding additive, and equipment provisions. A material fineness index is proposed, taking account of material natural features and its surface energy, depending on the powder material preparation method. Powder materials are classified as low-fineness, medium-fineness, and very-fine. Recommendations are developed for organizing sintering in fineness systems of different stability. It is demonstrated that low-fineness heavy materials are pelletized with moisture-containing plastifiers, which it is expedient to add in the charge mixing stage for binding material free moisture in order to provide pellet plastic deformation during molding. For medium-fineness materials, it is possible to obtain pellets by extrusion and nodulizing with a moisture content of 18-23%. For very-fine materials, a preliminary charge compaction stage is necessary in order to remove a gas phase and form micropellets for subsequent growth and compaction. © 2013 Springer Science+Business Media New York.

Rubanov V.G.,Belgorod State Technological University
International Journal of Soft Computing | Year: 2015

By analyzing of temperature control system of unit for sapphire crystal growing, applied in production are revealed significant disadvantages, affecting both the quality of the process and energy consumption in manufacturing. Here is proposed a structure of microprocessor automatic control system and software of its functioning, eliminating revealed lacks, associated with phase imbalance of supply voltage and appearance of higher harmonics, negatively affecting industrial voltage supply quality. Providing technological modes of heating installation carried out using the power supply circuit of two groups of field-effect transistors, operating in dynamic mode with minimum drain-source resistance at the time of switching which required the development of control system on a monostable multivibrator. To implement regulating laws are used modern microcontroller tools and technological programming languages, recommended by the IEC. Usage of visualization tools enables graphical representation of current information, operational control and corrective parameters as well as notification of emergency modes. Also, here is shown efficiency of system operation using PID control law with width modulation and proposed specific technological solutions. © Medwell Journals, 2015.

Bel'Maz N.S.,Belgorod State Technological University
Refractories and Industrial Ceramics | Year: 2010

Information is provided for preparing high-alumina ceramic concretes based on a combined silicate-phosphate binder. Features are revealed for structure formation of the ceramic concrete developed during hardening, drying and firing; probable chemical reactions that occur are indicated. © 2010 Springer Science+Business Media, Inc.

Cherevatova A.V.,Belgorod State Technological University
Refractories and Industrial Ceramics | Year: 2010

The combined interaction of factors is presented determining the principles of creating nanostructured binders based on highly concentrated ceramic binder systems (HCBS). Presence in HCBS of particles at a nano-level, and also intentional optimization of the spatial structure of this system has a comprehensive favorable effect on structure, rheotechnological properties of HCBS, and the technical and operating properties of materials prepared based upon them. © 2010 Springer Science+Business Media, Inc.

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