Vol 7, No 1-4 (2013)


The automized strength analysis of apparatuses with jackets

Lugantsev L.D., Lobanov G.A.


The method and algorithm of the computer analysis tensely - the strain state of apparatuses with the jackets, belong to the class multiply connected shell constructions with a follow distinct path meridian was explain. Convergence on the software of the proposed method of calculation is result.
Izvestiya MGTU MAMI. 2013;7(1-4):7-13
pages 7-13 views

Elasto-plastic calculation of tubular elements of constructions

Lugantsev L.D., Koscheyev E.S.


The method and algorithm of the computer analysis deflected mode of tubular elements of constructions in an elasto-plastic stage of operation was explained. Convergence on software implementation of the proposed method of calculation is present. It is instance calculation of tubular elements of the heat-exchange apparatus.
Izvestiya MGTU MAMI. 2013;7(1-4):13-18
pages 13-18 views

Software of computer monitoring carrying capacity and resource of tubular elements of constructions

Lugantsev L.D., Chernenko M.O.


The exposition of the program complex intend for computer monitoring of a carrying capacity and a resource of tubular elements of constructions, work in the conditions of a low-cyclic loading are given.
Izvestiya MGTU MAMI. 2013;7(1-4):18-25
pages 18-25 views

Models of outcomes for receiving information codes which do not contain zero symbols

Lvov A.A., Svetlov M.S., Rudenko A.E., Ulyanina Y.A.


Improvement of technological processes management information systems defines greater demands on the reliability of information systems, characterized by probabilities of outcomes receive information. In order to ensure high levels of reliability for long transmission there are widely used non-binary codes, which are actually pseudo-random sequences. Most preferred among them from the standpoint of immunity are codes not containing zero symbols. In this paper there are estimated the probabilities of outcomes of receiving information for the various models of communication channels with codes which do not contain zero symbols.
Izvestiya MGTU MAMI. 2013;7(1-4):25-30
pages 25-30 views

Increasing of antijamming ability in digital transmission systems

Lvov A.A., Svetlov M.S., Rudenko A.E., Martinov P.V.


This article analyzes the advantage of application the principle of self-synchronization based on the dynamic memory devices. For increasing the immunity of networks a variant of the principle of self-synchronization using n-positional dynamic memory device is suggested.
Izvestiya MGTU MAMI. 2013;7(1-4):30-33
pages 30-33 views

Environmental and economic aspects of processing and utilization of waste tires

Ctets A.A., Chaikun A.M.


The article provides information about possible directions of use of worn-out tires, which accumulation and disposal are the major environmental problems. The main directions of waste tire usage are, the use of whole tires and pieces of tires, high-temperature destruction of worn-out tires, pyrolysis, the use of waste tires as fuel in the cement industry and to generate energy or heat, regenerate production process, getting the rubber crumb.
Izvestiya MGTU MAMI. 2013;7(1-4):34-40
pages 34-40 views

Modification of the method of sequential simplex planning and its application to the solution of optimization problems

Ovsepyan V.S., Dertsyan A.S.


A modification of the algorithm Nealder-Mida is proposed when the point, which determines the direction of reflection the “worst” node, is chosen based on the values of minimazed functions in the rest of the vertices of a simplex. There was investigated the efficiency of the proposed modifications on the test functions.
Izvestiya MGTU MAMI. 2013;7(1-4):40-48
pages 40-48 views

Polymerization of the powder paints with the use of IR emitters with nanostructured ceramic coating

Shkarin N.Y., Rakhimov P.K., Kazenin D.A.


Powder polymeric covering one of the most rapidly developing directions in painting and corrosion protection of industrial products, hardware, details of machines and aggregates. Therefore, the search for new energy-saving technologies of powder coating becomes particularly relevant.
Izvestiya MGTU MAMI. 2013;7(1-4):48-51
pages 48-51 views

The direct method and algorithm of construction of splines of the third order in the control problems of drives performance movement

Gdanskiy N.I., Karpov A.V., Bugaenko A.A.


When using predictions in the controling of the rotational motion arises the need to build a double-smooth trajectory passing through its previously measured key points. As piecewise polynomial curve, providing the desired smoothness, there is considered the interpolation by cubic splines that in the intervals between the nodes are actually the cubic parabola, continuously connecting the nodes with the degree of smoothness. When imposing additional boundary conditions, data splines minimize its total curvature.
Izvestiya MGTU MAMI. 2013;7(1-4):51-57
pages 51-57 views

Mathematical software of an optimal control system of heat exchange object with dynamic parameters specified in algorithmic form

Artyushkin A.Y., Voronina P.V., Tatarinov A.V.


The article considers technological object of the periodic action principle, which performes the heat exchange between a liquid medium and the refrigerant through the dividing wall of the cooling jacket. Heat exchange process occurs under conditions of natural convection. The optimal control problem is formulated based on the thermodynamics approach. It is shown that the solution must provide a minimum during the process of dissipative average losses. Mathematical and algorithmic maintenance to solve the problem is developed.
Izvestiya MGTU MAMI. 2013;7(1-4):59-64
pages 59-64 views

Study of fuel composition influence on the radiative heat transfer in radiant tube furnace chamber

Vetkin A.V., Suris A.L.


There was performed a numerical studies on the basis of which the dependencies enabling one to assess the influence of the composition of the gaseous fuel, characteristics of burners, outside temperature of pipes and sizes of the radiant camera tubular furnaces of oil refineries on radiation heat transfer in combustion chamber during the change of chamber from natural gas to gaseous fuels of other structure.
Izvestiya MGTU MAMI. 2013;7(1-4):64-67
pages 64-67 views

Investigation of the process of storm waste water treatment from oil

Galieva Y.R., Suris A.L.


The investigation of the process of stormwater treatment of waste water from oil was made. There are defined the degrees of purification at various initial concentrations of oil products. Empirical relationships for the degrees of purification of the installation separate stages were obtained. Also statistical analysis was made.
Izvestiya MGTU MAMI. 2013;7(1-4):67-72
pages 67-72 views

Choice of optimal ways of protection of intellectual activity results in the field of engineering ecology

Suslina I.V.


The article considers the possible ways of protection of intellectual activity results in the field of environmental engineering. The main objects of protection, as well as corresponding legal institutions are defined. Gained results. Can be applied for all entities involved in the process of creation and commercialization of objects of intellectual property.
Izvestiya MGTU MAMI. 2013;7(1-4):72-75
pages 72-75 views

Analysis of the text and digital information for process modeling

Sofiev A.E., Vereshchagin G.M.


The article presents the description of the simplest classifiers, and compares popular algorithms for text categorization using test samples.
Izvestiya MGTU MAMI. 2013;7(1-4):75-79
pages 75-79 views

Calculation of the purification process of carbon dioxide industrial gases

Gureev A.O., Pikulin Y.G.


Mathematical model of absorber for small volumes of cleared gases is proposed. There are made calculations of the basic dimensions for the pilot facility, calculation of the basic sizes of absorber for industrial installation, which showed the operability of the mathematical model for large-tonnage production.
Izvestiya MGTU MAMI. 2013;7(1-4):79-86
pages 79-86 views

Calculation of the efficiency of catching drops in the axial centrifugal separators with the paddle swirlers

Zhikharev A.S., Cherepanova O.A.


Produced measurements have shown, that at calculation of the efficiency of separation of the dispersed phase in the axial centrifugal separators with the paddle swirlers it is required to consider the effect of three factors: deposition under the action of inertial forces, turbulent diffusion and the displacements of particles under the action of a non-zero radial component of the averaged velocity of the flow. In the case of small particles it can be considered the individual impact of these factors. Trapping efficiency mainly depends on the magnitude of the concentration of fine particles and their deposition rate in the near-wall zone. Each selected separator design meets the individual range of steady work, at which the minimum amount of ash is gained.
Izvestiya MGTU MAMI. 2013;7(1-4):86-89
pages 86-89 views

The role of chromium in corrosion-electrochemical behavior of carbon steels

Reformatskaya I.I., Podobaev A.N., Shishlov A.N., Chibysheva V.D., Artamonov O.Y.


In neutral (рН 7,55) and alkalescent (pH= 8,74) chloride-containing solutions there was examined the electrochemical corrosion behavior of carbon steel model containing up to 1,05 % Cr. It is shown that the chromium containing in carbon steel hampers their passivation, but microalloying it with titanium has a beneficial effect on their passivity and pitting resistance. The view is suggested that the observed effect of chromium and titanium on passivity and pitting resistance of low-alloy steels is connected with the change of the energy state of the surface of the metal.
Izvestiya MGTU MAMI. 2013;7(1-4):89-96
pages 89-96 views

Simulation of crystallization kinetics and conjugate heat-mass transfer in gel medium

Melikhov I.V., Gorbatchevskiy A.Y., Nikolaev A.L., Gopin A.V.


This paper describes the features of zonal crystallization at high speeds of the process. Processes of heat release and change of the state of reagents in solution, associated with their high concentration, were taken into account. The kinetics of crystal growth in gel medium was investigated. The control algorithm for permeability of layer with precipitated solid phase was identified. The parameters defining the localization of the crystal growth were discussed. The possibility of forming an impermeable plug with specified location was shown. These results are of interest for the solution of certain medical problems associated with the controlled transport of drugs.
Izvestiya MGTU MAMI. 2013;7(1-4):96-103
pages 96-103 views

The study of technological opportunities of the new sorbent microcrystalline calcium hydroxide

Gonopolskiy A.M., Papovyan O.E.


In this article there was confirmed the possibility of obtaining domestic lime sorbent on the basis of the microcrystalline calcium hydroxide corresponding to their physical and chemical properties to the best foreign analogues. There were analyzed the parameters of the traditional technological process of lime slaking. In the laboratory conditions there was developed a damping technology, allowing to get the lime sorbent with large adsorption surface.
Izvestiya MGTU MAMI. 2013;7(1-4):103-106
pages 103-106 views

Development of translucent fireproof structures and composition on the basis of epoxy oligomers

Leshchenko A.S., Burmistrov I.N., Panova L.G.


There were developed compositions with epoxy matrixes for glutinous layers in multilayer fire-glass, providing a translucent building structures fire-resistance class E-60 I-45, in case there are three polymer layers. Using method ICS the chemical composition of resins and their curing chemistry with triethylenetetramine was found. Studying kinetics and the degree of cure there was selected a rational quantity of hardener.
Izvestiya MGTU MAMI. 2013;7(1-4):107-112
pages 107-112 views

Investigation of the influence of the catalyst in the process of producing biodiesel using supercritical methanol

Sister V.G., Ivannikova E.M., Kirshankova E.V.


The article discusses various ways to produce biodiesel fuel: in the presence of homogeneous catalysts, in the presence of heterogeneous catalysts, in supercritical methanol. There was experimentally confirmed that the process of obtaining methyl ethers of fatty acids (FAME) in the supercritical methanol on the selectivity, on replacement of the target product and process stability in time can compete with catalytic methods. There was studied the efficiency of the catalyst at the transesterification of rapeseed oil in supercritical methanol under the following process parameters: temperature of 300°C, the pressure of 300 atmospheres, the volume fraction of oil 0,5. There was evaluated that during the first hours after the filing of the reagents into the reactor in the presence of a catalyst TiO2/Ti concentration FAME in the oil layer of the reaction products is more than in not catalysed reaction. However, approximately one hour after the beginning of the process of catalytic activity was sharply reduced, and the output of the FAME becomes less, than without a catalyst. By means of mass-spectral analysis of the product, extracted from the surface of the catalyst, it is discovered a tumor in the process of interesterification low-volatile and poorly soluble substances, blocking the active centres of the catalyst. In addition, the reduction in catalytic activity became the result of partial destruction of the surface layer of TiO2. It is established, that the washing of the spent catalyst mixture of solvents with the subsequent heating at 350°C allows largely to restore the activity of the catalyst.
Izvestiya MGTU MAMI. 2013;7(1-4):112-119
pages 112-119 views

Leaching of non-ferrous metals from metallurgical slag by ferric sulfate solutions produced by bio-oxidation

Fomchenko N.V., Kaynova A.A., Muravyev M.I.


The paper presents the results of a study of leaching of copper, nickel, cobalt and iron from metallurgical slag. It is shown that ferric sulfate solutions produced during the oxidation of bivalent iron by associations of acidophilic chemolithotrophic bacteria, adequately allowed to transfer non-ferrous metals into the liquid phase in 1 hour at a temperature of 70 º C. Thus the extraction of copper reached 90%, nickel - 88%, cobalt - 67% and extraction of iron into a solution was about 30%.
Izvestiya MGTU MAMI. 2013;7(1-4):119-123
pages 119-123 views

Technique for recognition of aircrafts and radar traps in the control circuit of airspace control system based on neural network technology

Bobin A.V., Azarov V.A., Bulgakov S.A., Savin D.A.


The paper proposes a method for building of automatic recognizers of aircrafts on a set of radar measurements based on the cascade of multilayer feedforward neural networks. The practical application of this technique in recognizing of three types of aircraft is presented as well.
Izvestiya MGTU MAMI. 2013;7(1-4):124-130
pages 124-130 views

Thermal and physical dependence during the granulating of 1-5 mm dispersed particles in liquid nitrogen

Belukov S.V., Kimens P.Y.


The paper discusses various mathematical models for solving the problem of cryogranulation of liquid droplets of a substance in a cooling agent. Calculated data is obtained and characteristics of the process are built.
Izvestiya MGTU MAMI. 2013;7(1-4):130-133
pages 130-133 views

Types of noise barriers

Ayrbabamyan S.A., Bugarev E.A.


This article presents the main types of noise barriers and their characteristics. The calculation of a noise barrier (wall) is shown.
Izvestiya MGTU MAMI. 2013;7(1-4):134-138
pages 134-138 views

Energy state of a surface of carbon steels as a characteristic of their corrosion resistance

Reformatorskaya I.I., Podobayev A.N., Shishlov D.S., Chibysheva V.D., Artamonov O.Y.


The state of various areas of the surface of a test melt of carbon steel containing 0,2% of carbon and 0,75% of chrome was analyzed by means of methods of energy-dispersive analysis and scanning tunneling micro- and spectroscopy. Without corrosion-active sulfide inclusions, the local corrosion spots are inert chromium carbides and oxides of aluminum. Spots of localized corrosion occur in places where above mentioned carbides and oxides brake the surface due to accelerated etching of the metal/inclusion boundary, where are seen a rapid increase of the tunneling activity.
Izvestiya MGTU MAMI. 2013;7(1-4):138-142
pages 138-142 views

Development of rapid diagnostics and prediction of residual life based on detection of accumulated damage of metal structure during sustained loading

Zorin E.E.


In the article there are considered the basic principles of the method of rapid diagnostics on the basis of microindentation allowing to register the dynamics of accumulation of scattered damage in a wall of a structure in the sustained loading and predict the residual life.
Izvestiya MGTU MAMI. 2013;7(1-4):142-148
pages 142-148 views

Features of corrosion-mechanical failure of gas and oil pipelines

Zorin E.E., Volchenko D.I., Zorin N.E.


The paper considers the kinetics of stress-corrosion defects in the initial stages of destruction. The authors described stress-corrosion damage of pipelines that are in similar conditions to the external environment with different design parameters and operating modes. There are identified two stages of progress of stress-corrosion defects in relation to the influence of different groups of factors. It is shown that in the metal surface layer of walls of a pipeline under designed pressure there are conditions for destruction due to corrosion cracking under stress.
Izvestiya MGTU MAMI. 2013;7(1-4):148-154
pages 148-154 views

PI System and Labview integration

Sofiev A.E., Rylov M.A.


In this article it is considered the questions of integration of Plant Information System (PI System) with Labview graphical programming language. Mechanisms of interaction between the systems are considered. Examples of a program code are given.
Izvestiya MGTU MAMI. 2013;7(1-4):155-160
pages 155-160 views

Quality model of stable catalyzate on the unit of catalytic reforming of gasoline

Sofiev A.E., Rylov M.A.


In this article the authors consider questions of development of a quality model of stable catalyzate on the unit of catalytic reforming of gasoline. The approach to collection and preprocessing of technological information is considered. Results of simulation for octane number of stable catalyzate are given. Comparing of results of simulation and laboratory data is made.
Izvestiya MGTU MAMI. 2013;7(1-4):160-164
pages 160-164 views

General method for construction of a piecewise-linear separating surface for sets of objects defined by points in a feature space

Gdanskiy N.I., Krasheninnikov A.M.


The article presents a general method for construction of separating surface for sets of points in a feature space. The method is based on using of hyperplanes normal to intercenter vectors of sets.
Izvestiya MGTU MAMI. 2013;7(1-4):165-171
pages 165-171 views

Using of algorithm of superposition micropulse lighting for cultivation of phototrophic microorganisms

Biryukov V.V., Makeyev P.P., Maltsevskaya N.V.


The authors analyzed light sources and lighting modes for the cultivation of phototrophic microorganisms. Preliminary studies on the application of the superposition mode of illumination are conducted.
Izvestiya MGTU MAMI. 2013;7(1-4):171-176
pages 171-176 views

Nonlocal approach to thermodynamics of mixtures

Maikov V.P., Balunov A.I.


The paper examines the highlights of mixture theory on the basis of generalized nonlocal (discrete) thermodynamics that involves Shannon entropy. Generalization of the equilibrium thermodynamics is obtained basing on the hypothesis of quantized entropy. The paper defines the elemental macroscopic thermodynamics space that serves as the basis of the mixture theory. The theory allows to use generalized thermodynamic method instead of empirical equations including laws of Raul and Dalton.
Izvestiya MGTU MAMI. 2013;7(1-4):176-181
pages 176-181 views

Archiving module for data backup and storage

Eliseeva O.A., Pyankov I.B., Reshetina N.V.


The paper describes an archiving module that provides data backup and storage describing modeling objects and data about the process of modeling of technically complex objects in real time, without interrupting the modeling complex and rebooting a computer. The backup schedule option is implemented to minimize the human impact on the data safety.
Izvestiya MGTU MAMI. 2013;7(1-4):181-186
pages 181-186 views

Preparation module for models of components of systems and technical processes of thermohydraulic cluster

Eliseeva O.A., Pyankov I.B.


The paper describes the functioning of system elements and technological processes of heat hydraulic cluster. The development objective is to create a universal tool for the preparation and functioning of computational models for clients which allow working simultaneously with three-dimensional schemes, functional diagrams and visual programming elements.
Izvestiya MGTU MAMI. 2013;7(1-4):186-196
pages 186-196 views

Intensification of fuel combustion process and reducing emissions on application of anti-wear additive

Klykanova A.A.


The article considers a problem of reducing emissions of fuel equipment on the application of a magnetic anti-wear additive which is produced using nanotechnology, which makes it possible to obtain lubricating fluid with low coefficient of friction, having metal cladding effect. Continuous layer of magnetic particles on a surface makes it possible not only to reduce the shear stress in the surface layer, but simultaneously reduce the gap between the mating surfaces, providing the reducing of coefficient of friction and more complete combustion.
Izvestiya MGTU MAMI. 2013;7(1-4):196-198
pages 196-198 views

Videoecology problems of urban environment V

Novikova V.M., Povysheva S.V.


The paper examines the problems of videoecology of urban environment, ways on correction of mistakes in architectural design and practices in creation of visually comfortable urban environment.
Izvestiya MGTU MAMI. 2013;7(1-4):199-202
pages 199-202 views

Mass transfer in electro-membrane separation of water systems

Berengarten M.G., Gulyaeva E.S.


The article presents the results of mass transfer characteristics of electro-membrane systems. It is also shown the influence of hydraulic properties, experimental cell constructive parameters and initial concentration on mass transfer coefficient.
Izvestiya MGTU MAMI. 2013;7(1-4):202-206
pages 202-206 views

Increasing the reliability of technological equipment of waste processing plants

Gonopolskiy A.M., Murashov V.E., Fedorova A.V.


In the paper, using the methods of reliability theory and calculus of variations was posed and solved the problem of increasing the efficiency of industrial equipment at enterprises on processing of solid household waste. An experimental base for research was the actual operating time to failure of machines and equipment of existing waste treatment plants of Moscow. Results allow to choose the operating modes corresponding to maximum reliability of the equipment.
Izvestiya MGTU MAMI. 2013;7(1-4):206-216
pages 206-216 views

Iterative procedure for the synthesis of an optimal robust PID controller

Polyanskiy V.P.


The article describes the method of calculation of robust controller in automatic control system with the internal model, that allows to significantly simplify the calculation of the regulator settings.
Izvestiya MGTU MAMI. 2013;7(1-4):217-236
pages 217-236 views

Methods of intensification of the process of heat and mass transfer in column apparatus with contact devices

Pushnov A.S., Sokolov A.S., Butrin M.M.


The article gives a classification of intensification the methods of heat- and mass transfer. There are examined some advantages and disadvantages of nozzle and poppet pin devices. The method of influence analysis of nozzle form and construction on heat-, mass transfer process is provided. There is also described the effect of different parameters on the choice of the design of the nozzle. In article there were compared the most common in industry types of bulk and regular nozzles. An alternative method of intensification of heat and mass transfer finally was proposed.
Izvestiya MGTU MAMI. 2013;7(1-4):237-242
pages 237-242 views

Application of modern technologies of data collection and data analysis for integrated control and analysis of technological and economic parameters of production

Vasiliev A.A., Paramonov E.A., Zubov D.V.


The article considers the advantages of the record of industrial technological information directly in the database. This solves some technical problems such as those which have an economic character.
Izvestiya MGTU MAMI. 2013;7(1-4):242-246
pages 242-246 views

The study of electro-optical and optical-electronic systems of motor vehicles

Kardashev G.A., Zubov D.V., Karlov S.P.


The modern level of electro-optic technology development makes it technically and economically feasible to use them in the motor vehicles and allows it to achieve significantly better results than when choosing conventional solutions. Rapid progress in this field requires operational research on specific systems and components that can be used with the use of laboratory stands running LabVIEW.
Izvestiya MGTU MAMI. 2013;7(1-4):246-251
pages 246-251 views

Thermal effect at impact of a drop with a highly heated wall

Baranov D.A., Kazenin D.A., Skochilova Y.N., Trusov M.S.


The article gives the solution of the problem of heat transfer to the droplet colliding with the highly heated wall. Analytically was found the expression of thermal effect of a drop single interaction with the wall. The problem is important when calculating the cooling processes in cryogenic equipment, heat removal of the nuclear power and hardening processes in metal working.
Izvestiya MGTU MAMI. 2013;7(1-4):252-254
pages 252-254 views

Automated process control system for the biosynthesis of enzymes

Zubov D.V., Tolchenov A.A.


The article describes the process of feed additives production containing enzyme complex. A mathematical model of the process was developed. The system of automation and calculation of optimum time of process termination is proposed.
Izvestiya MGTU MAMI. 2013;7(1-4):255-259
pages 255-259 views

Automation of stand complex for studying phototrophs and analysis of possibilities to improve the efficiency of the process

Zubov D.V., Strokov S.S.


How to build a bench automation systems to study the complex fototrofov. The analysis of the possibilities for reducing energy consumption.
Izvestiya MGTU MAMI. 2013;7(1-4):259-265
pages 259-265 views

Simulation of the control systems with a regulator of fractional order and the study of its stability

Zubov D.V., Studenikin G.I.


The possibility of creation of control systems with fractional order controllers, their advantages and difficulties encountered in the implementation are considered in the article.
Izvestiya MGTU MAMI. 2013;7(1-4):263-266
pages 263-266 views

The study of the decrease processes in the content of nitrogen and phosphorus in biological wastewater treatment

Polyakov A.N., Smirnova A.S., Shchelkanova O.N., Kiseleva A.S.


The article studies processes occurring during wastewater treatment. The estimating time of decreasing of concentrations of phosphates, ammonia nitrogen, nitrites and nitrates to standard values in the cleaned stream is given.
Izvestiya MGTU MAMI. 2013;7(1-4):266-268
pages 266-268 views

Decision support system for supplier selection in supply chain

Butusov O.B., Dubinin M.E.


Designed fuzzy logic algorithm and software and information management decision support system for the rational choice of supplier in the supply chain by using the analytic hierarchy process (AHP) and the operations of the theory of fuzzy sets. The functioning of the DSS has been verified experimentally on real accounting and statistics. The results of numerical experiments confirmed the effectiveness of the proposed algorithm for the adoption of logistics management solutions.
Izvestiya MGTU MAMI. 2013;7(1-4):268-271
pages 268-271 views

Search of technical factors of the liquid submerged cultivation process of the mycoprotein strain

Nemanova E.O., Rusinova T.V., Gorshina E.S., Birukov V.V.


In this article was made determination of technical factors of the liquid submerged cultivation process of the mycoprotein strain Fusarium sambucinum D-104. Effect of pH-control on the growth of mycelium and the production of protein substances in a wide pH range has been revealed.
Izvestiya MGTU MAMI. 2013;7(1-4):271-277
pages 271-277 views

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