Science and Education a New Dimension
Iss. 54. 2015.
M. Yu. Skulsky On the nature of the interacting β Lyrae system: localization of hot regions on the accretion disk as a representation of magnetized gas structures
Abstract. This investigation was caused by the publications of the results of the self-consistent simulations of the light curves of the well-known massive close binary system β Lyrae. The one major among them is the statement of the significant contribution of the accretion disk radiation in the light curve of the system. In particular, there were identified two hot regions with temperatures that are 10% and 20% higher than the average on the disk rim. It is assumed that these shock regions might be formed by gas flows in regions of collisions on the disk in the mass transfer between components. Indeed, the hotter region of the rim disk at the phase 0.40P is explained naturally by the Coriolis force deflection of the main gas flow that is directed from a donor through a Lagrange point to the aссretor’s Roche lobe and with a further collision of this flow with the disk. However, this explanation can not be suitable to a wide hot region of the disk rim that is observed at the phase 0. 80P. Our analysis of absolute spectrophotometry, of curves change of magnetic field, of radial velocities and intensities of spectral lines along the orbital phases indicates that the hot region on disk at phases near 0.80P has a special nature. The donor’s magnetic field should be taken into account because at theses phases its dipole axis is actually aimed to the observer and deflected towards disk of t he accretor. This hot region on the disk can be formed by the collision with this disk of magnetized gas which is canalized by the donor magnetic field in a certain way oriented in space. The energy effect of the collision on the disc is significantly strengthened by the counter rotation of the outer edges disc towards the falling gas flows. The structure of the donor’s magnetic field is effective at heating and the hotter region on the disk rim at phases near 0.40P. The specific configuration of the magnetic field of the donor explains why at rotation of the donor and the accretor around their common center of masses on line of sight of the observer these two hotter regions dominate on the accretion disk. The main conclusion is that the mass transfer, the formation of circumstellar gas structures, their dynamics and energetics are regulated by magnetic field of the donor. Probably in the interaction of magnetic fields that were generated on the donor and accretor with its disk there is a solution to the problem of the real existence and the physical nature of jet-like structures in the β Lyrae system.
Keywords: β Lyr, magnetic field, accretion disk, mass transfer
M. Yu. Skulsky On the nature of the interacting β Lyrae system: localization of hot regions on the accretion disk as a representation of magnetized gas structures
E.I. Borkach, G.M. Ivanitska, V.S. Kovtunenko Specific character of the atomic structure of the disordered condensed state
Abstract. It is grounded physical meaning of short-range order of amorphous materials based on its differences from the short-range order of crystals. Thus, the amorphous substance is the solid body with the correlation (probabilistic) topological short range order in the structural particle locations that excludes formation of long range order. And, respectively, the crystal is the solid body with the total functional order in the atomic locations that ensures realization of both short and long range orders. We shall especially emphasize that in order to understand the differences in the structure of the crystals and the amorphous solids one has to point out the physical and chemical parameters of short range order of the separate atoms and the whole substance. In crystals, all the atoms that occupy the similar positions in the crystalline lattice have completely identical short range order. In the amorphous substances the following averaged parameters of SRO are considered: the general character of interaction between the nearest neighbors; averaged geometric figures of mutual location of the nearest neighbors; average angles between the chemical bonds; types of the bonds and their average energies; the character of the distribution of the bonds over different types; the equilibrium average coordination spheres radius; the average coordination numbers; the dimensions of the coherent scattering regions. The statistical distribution of these short range order parameters even for the equivalent atoms of the atom network defines the differences of all the properties of the amorphous and crystalline solids.
Keywords: amorphous materials, atomic structure, shot range order, long rage order
E.I. Borkach, G.M. Ivanitska, V.S. Kovtunenko Specific character of the atomic structure of the disordered condensed state
O. Mitsa, V. Petsko, E. Borkach, S. Petretskiy Effect of inhomogeneities of the refractive index in spectral characteristics of narrowband optical filters by changing the working length
Abstract. Inthis work the influence of transition region with an inhomogeneous distribution of the refractive index for the spectral characteristics of narrow-band filters, depending on the operating wavelength,was studied.
Keywords: characteristic matrix, the spectral characteristics, the transmission spectrum, inhomogeneities of the refractive index
O. Mitsa, V. Petsko, E. Borkach, S. Petretskiy Effect of inhomogeneities of the refractive index in spectral characteristics of narrowband optical filters by changing the working length
O. P. Cheiliakh, N. E. Karavaieva High temperature thermos-cyclical treatment as a method of influencing the structure and properties of carbonized 20Mn steel
Abstract. The paper discusses the issues of improving the mechanical properties and wear resistance of structural steel working under wear conditions. A method for the surface treatment of the complex, which consists in carrying out carburizing and subsequent high temperature thermal cycling (HTTC) was suggested. The proposed method allows to increase processing density carbides, crushed and make its structure more uniform. After HTTC, followed by hardening from different temperatures in the structure of martensite formed, globular carbides and residual austenite. The residual austenite is capable of deformation martensite γ→ α’ transformation at wear (DMTW), increasing the relative wear resistance of the investigated steel by 2-2.5 times depending on the conditions of wear. The practical value of the work lies in the fact that by changing of surface treatment quantitative relationship between martensite and austenite can be adjusted , to vary the degree of metastable austenite, getting into the surface layers of differentiated chemical composition and structure gradient without the use of special equipment and without creating special sections at thermal workshops.
Keywords: complex surface treatment, carburizing, metastable austenite, thermal cycling, wear resistance
O. P. Cheiliakh, N. E. Karavaieva High temperature thermos-cyclical treatment as a method of influencing the structure and properties of carbonized 20Mn steel
Yu. Hachak, O. Myhaylytska, V. Binkevych, J. Vavrysevych, O. Binkevych Application of immune focus phytosyrups in yogurt technology
Abstract. The work is devoted to studying the possibility of directing the immune phytosyrups “Echinacea” and “Immune” in technology yogurt. Research proved the feasibility of making syrups and method in the production of yogurt. Experimentally the optimal dose for entering phytosyrup the production of yogurt.It is based on the proved result that the use of syrups “Echinacea” and “Immune” dairy drinks in technology expands the product range of health-care areas. Application of immune phytosyrup direction “Echinacea” and “Immune” in technology yogurt does not require the use of additional process equipment.
Keywords: technology, yogurt, echinacea, wild rose, elderberry, mountain ash, organoleptic quality
Yu. Hachak, O. Myhaylytska, V. Binkevych, J. Vavrysevych, O. Binkevych Application of immune focus phytosyrups in yogurt technology
N. Lukova-Chuiko, R. Prus Vulnerability Analysis for Dynamic Investment Management
Abstract. The paper presents analysis of mathematical model and methodology of determining the optimal investment allocation between the objects of information security. The model allows to evaluate the potential losses decrease as a result of decisi on about investment allocation between information security objects. To predict the effectiveness of countermeasures and evaluate its work the model takes into account the vulnerability of objects to a security breach and potential loss due to such breach. Vulnerability function depends on the size of investment of both sides, can describe various systems, and includes the parameters that enable to identify the areas of greatest economic expediency of investment in complex information security systems. To coordinate the process of decision making developed methodology of dynamic investment management. The main point of methodology is investment allocation conducted after identifying attacker’s ways of threat realization. A dynamic confrontation is demonstrated on the system consisting of two objects. Analytical modeling of the process of defence and attack on the information security objects demonstrates that the methodology by taking into account attacker actions and vulnerability function raises investment usage efficiency and enables to assess the outcome of decisions.
Keywords: IT security, mathematical model, vulnerability, security breach, optimal security investment
N. Lukova-Chuiko, R. Prus Vulnerability Analysis for Dynamic Investment Management
Features of structure changing of copper wires in terms of the complex action of current and high temperature
Abstract. The article presents the results of researches changing the structure of copper wires internal electric networks under the action of electric and thermal loads. Described metallographic signs of short circuits in terms of the complex action of current and high temperature. On the basis of researches the features of the structure of electrical wires at different temperatures.
Keywords: short circuit, fire, internal electric networks, microstructure wire
O.B. Nazarovets, V.I. Gudуm, O.A. Kuzin Features of structure changing of copper wires in terms of the complex action of current and high temperature
V. Temnikov, A. Peteichuk The concept of construction an automatic system for ATC emotional condition monitoring
Abstract. One of the most important problems currently connected with providing of persons automated control access to the resources of information systems by voice is permanent access control of air traffic controllers (ATC) to information resources of aviation ergonomics systems that is executed during operations. It is related because the safety of aircraft dependents of the reasonableness and correctness of ATC actions. The possible inadvertencies during their work can be connected with a constant feeling of neuro-emotional stress that is caused by increased responsibility for the decisions taking, lack of time and a large amount of controlled processes. This leads to increasing urgency of permanent monitoring of the emotional condition (EC) controllers. Special criterions of EC monitoring systems usage during controlling their access to information resources of ergonomics systems is small distances from the sound source to EC monitoring systems, small amount of controlled entities and necessity of control ensuring in the real time. Mentioned features of usage are determine requirements for the presentation of systems performance. Other important requirement is necessity of monitoring by ATC continuous speech. The aim of the current research was to develop a concept of construction of EC monitoring system for ATC, which is provide the execution of presented to system requirements and having high qualitative indexes. In accordance with developed concept the EC monitoring of ATC by means of continuous speech is reduced to keyword monitoring which are extracted from smooth continuous ATC speech and based on a comparative analysis of the control and refer- ence informative parameters characterizing the isolated (primarily vowels) phonemes. The article briefly describes a method for in- creasing the performance of the search subsystem and key words extracting in continuous ATC speech.
Keywords: Air traffic controller, emotional condition, speech recognition, pitches frequency, formants, phoneme
V. Temnikov, A. Peteichuk The concept of construction an automatic system for ATC emotional condition monitoring
N.M. Hnatyshyn Neutralization hypochloritic liquid waste in cavitation fields under adiabatic conditions
Abstract: The treatment of liquid waste containing sodium hypochlorite proposed to be implemented in the cavitation fields. For excitation applied ultrasonic emitters or hydrodynamic cavitators. Kinetic dependences of change of concentration of sodium hypochlorite during its decomposition in cavitation fields are described by polynomial equations. On the basis of their analysis calculated the duration of the process until complete decomposition of sodium hypochlorite. It is established that the implementation schedule of sodium hypochlorite in debating conditions characterized by higher compared to isothermal conditions, the speed of the process and significantly lower unit costs of energy. Under adiabatic conditions, the temperature rise formed the conditions for the emergence of developed cavitation. Thanks to this, the energy deposited in a medium by an ultrasonic emitter, or hydrodynamic cavitator better spent on the decomposition of sodium hypochlorite. It is established that the efficiency of neutralization of hypochloritic liquid waste using hydrodynamic cavitator above about 1.7 times lower than in case of using an ultrasonic transducer. This is because all hypochloritic solution passes through the cavitation device of the hydrodynamic cavitator jet type. In the case of an ultrasonic transducer treatment is subject to only a portion of the reaction medium, which is under magnetostrictior. Based on the calculated values of the order of the decomposition reaction of sodium hypochlorite, change the value of the red-ox potential of the reaction environment, which grows over time, and analysis of the mechanism of cavitation processes in the fields with the participation of water molecules as environment and hypochlorite ion came to the conclusion that the schedule of sodium hypochlorite in cavitation fields takes place by a radical mechanism. It is proved that application of hydrodynamic cavitator for disposal of industrial liquid waste containing sodium hypochlorite, is a very promising.
Keywords: liquid waste, sodium hypochlorite, decontamination, cavitation, schedule
N.M. Hnatyshyn Neutralization hypochloritic liquid waste in cavitation fields under adiabatic conditions
V.N. Melnyk, O.V. Piskunova Stereological-stereometrological principles of REM-microscopy of dispersed soil
Abstract. The article reviewed the methodology of stereological-morphological analysis of REM images of dispersed soils. It is suggested to apply wavelet method for radiometric correction of REM images and mathematical tools of discrete axles by Voronoi to identify the pore space of soil microstructural organization as dispersed systems. We’ve placed an emphasis on using the original software package «Stiman». Experimental studies given in the article were carried out with the appliance of modern REM (HITACHI S-800, Japan). The obtained results confirm the prospects of stereological-morphological analysis of REM images on micron and submicron levels.
Keywords: raster electron microscopy, wavelets, axles of Voronoi, stereology, morphometry
V.N. Melnyk, O.V. Piskunova Stereological-stereometrological principles of REM-microscopy of dispersed soil
O. Syzonenko, Yu. Zmievskii, I. Krapyvnytska, V. Myronchuk Investigation of main technological conditions of the ultrafiltration purification of inverted beet extract
Abstract. The main technological conditions of the ultrafiltration purification of inverted beet extract were investigated. Studies were conducted on the installation of periodic process with membranes of the types UPM-10 and UPM -50. Usage of membrane UPM-10 is better than membrane UPM-50 because the first one has a higher selectivity for solid substances by 29-34% and for the protein by 5,5-6,4% with negligible difference in reduced productivity of the membrane during the process of purification.
Keywords: ultrafiltration, inverted beet extract, sucrose
O. Syzonenko, Yu. Zmievskii, I. Krapyvnytska, V. Myronchuk Investigation of main technological conditions of the ultrafiltration purification of inverted beet extract
B.I. Stadnyk, A.V. Khoma Methods of white light interferogram normalization for surface profile reconstruction
Abstract. The article shows the possibility of increasing the accuracy of the surface profile reconstruction by normalizing the white light interferogram. For interferogram normalization, it is necessary to define the envelope of intensity signal. Two methods for envelope evaluation were developed. Metrological properties of the proposed methods were investigated by interferogram simulation for tilted and spherical surfaces.
Keywords: white light interferometry, mathematical model of interferogram, normalization, surface profile reconstruction
B.I. Stadnyk, A.V. Khoma Methods of white light interferogram normalization for surface profile reconstruction
E. Shandyba, R. Kogut, A. Pechenik, N. Ternyuk System of global thresholds of knowledge and its relations with attributes of artificial objects
Abstract. The article considers the system of types of global thresholds of knowledge and the set of attributes of artificial objects. The hierarchical relations between the thresholds of knowledge and the relations of the same type between the attributes are found out. The article shows the structural correlation and additive character of the dependences between informational, economic and time characteristics of actions required for implementation of life cycle of innovations of the various levels of novelty and types of global thresholds of knowledge.
Keywords: system, global thresholds of knowledge, set of attributes, artificial objects, life cycle, innovations
E. Shandyba, R. Kogut, A. Pechenik, N. Ternyuk System of global thresholds of knowledge and its relations with attributes of artificial objects
