05.00.00 Technical science
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Description
Article considers projecting of apparatus, allowing automating process of designing of models of clothes of the unified details. The given approach in the best way allows to solve problems of expansion of models at the minimum expenses of manufacture for designing, improvement of parametrical and geometrical adaptation of design with consumer body
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Description
The goal of the study is to research time characteristics of pseudo-noise sequence acquisition method for multicarrier communication systems of MC-DSCDMA, that allows low hardware requirements and able to operate in low quality channels. The way of achieving this lies in using a mathematical model of algorithm. The achieved results show suitability of MC-DS-CDMA-signals optimization for pseudo-noise sequence acquisition efficiency increase. The achieved results can be applied in MC-DS-CDMA communication systems development
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INVESTIGATION OF A SOWING UNIT OF OVERPRESSURE WITH A FORCED
DescriptionThe article presents the results of experimental investigations of pneumatic sowing unit of overpressure with a forced encapsulation of a seeding chamber when sowing corn. The analysis of a received mathematical model of dosing is given
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Description
Тhe article presents an investigation of hydrodynamic mixer for biodiesel production from vegetable oils hyperacidity in the conditions of agricultural companies. The process of hydrodynamic mixer which mixes the flow of biofuels from jatropha oil with carbon dioxide to wash it. The regularities of disclosing the relationship of the parameters (diameter and length of the mixing chamber), the mode (the pressure and flow rate) from the medium (dynamic viscosity, density, elasticity) to the energy characteristics of the process (mixing power on). Based on the method of similarity and dimensions of physical quantities obtained criterion turbulence. A reduction in the flow pressure and agitation power with increasing diameter. We have justified the mode (pressure at the nozzle exit corresponds to the critical), in which the carbon dioxide gets into the mixing chamber properties of liquids, solutions for biofuels, and the mixture becomes a quasi-homogeneous. Based criteria of regime change from a supersonic flow in the subsonic, allowed us to determine the condition of quasi-homogeneity of the mixture. It is proved that we form a supersonic flow liquid-gas at the same time it is transformed into subsonic, accompanied by the acoustic cavitation effect leap remixing due to isentropic pressure jump. The article justifies the physics of cavitation effects of carbon dioxide on biofuels, result of which is to improve the physical and chemical properties of the medium due to the structuring of the molecules of the solution, which has a positive effect on the mixing
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Description
Results of modeling of deformation of a band saw in a cutting zone are presented in article. Also the experiment by definition of deformation of a saw and loss of her stability has been made
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STUDY ON LONG-TERM STRENGTH OF BRITTLE SOLIDS
DescriptionConsidered theory of termofluktuacion strength of solids. Formulas for predicting long-term strength limits. Set the value of a safe low voltage of compression depends on the physical and mechanical material constants. For a number of technical glass received the numerical estimation of compressive stresses safety.
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Description
In the article investigation and analysis of various types of flow meter, with the aim of choosing the most reliable gauges for the manufacture of juice are offered. Choosing the flow meter, its integration into the general system of automatic control was also considered. Investigations were carried out in the field of modern measuring techniques for the choice of a measuring complex
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RESEARCH AND MODERNIZATION OF CRUSHING AND SORTING EQUIPMENT OF SAND AND SAND-GRAVEL MIXTURE
DescriptionThe object of studying was CMD-108 crusher. The aim of this scientific article is studying kinetic and dynamic parameters of crusher operating devices. As a tool of studying there were used methods of mathematic analysis, theoretic mechanics and physics. As a result of theoretic studies there were defined speeds of various points of the crusher operating devices as well as there were obtained the values of dynamic loads on them and given recommendations on optimization of the crusher operating conditions and its designs. There was also determined an optimum zone of the material crushing from the viewpoint of operating life of the hinged joints of movable jaw enabling to reduce to minimum dynamic impact components of the reactions of the supporting joints of the movable jaw which increases their operating life
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TECHNIQUES AND ALGORITHMS OF INTERACTIVE AUGMENTED REALITY VISUALIZATION: RESEARCH AND DEVELOPMENT
DescriptionThe author performed a research with the purpose of improving visualization of three-dimensional objects by means of augmented reality technology with the use of massively available mobile devices as a platform. This article summarizes the main results and provides suggestions for future research. Since graphical user interfaces made it to the consumer market about 30 years ago, interaction with the computer has not changed significantly. The focus of current user interface techniques is only on human-computer interactions, not on human-real world interactions. With that in mind, the concept of augmented reality appears very promising. Besides other improvements, it provides a better user interface for visualization of virtual objects in real environments. Modern smartphones and tablet computers, as well as improved software tools have provided the prerequisites for mass usage of handheld augmented reality. The following issues were raised by research: realistic object rendering, the ability to change object parameters in real time, storing of objects, manipulation of objects in space, issues of augmented reality graphical user interface design
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RESEARCHING AND CREATION OF A DEVICE FOR DRYING CHICKEN MANURE
DescriptionIn this article the authors have proposed a process and arrangement for recycling in the poultry farms of the Krasnodar region of chicken manure and release of mineral fertilizers, аs well as the analysis of existing Russian technologies and devices for drying chicken manure. The study proposed a technology and apparatus for drying chicken manure to not only provide a significant deal of capital investments, but also cut energy costs by the proposed method and apparatus, as well as improving the quality of the finished product (chicken manure). In the method of drying chicken droppings produced removing mechanical impurities, mixing, drying and grinding of the hot gases, wherein the starting slurry is transported in a horizontal direction opposite to the flow direction of the hot gases while performing a gradual heating it with simultaneous comminution and mixing, and then after reaching the zone of maximum temperatures for each of the size fractions of the suspension is achieved by turning its direction on 180ºС and then transported in a direction coinciding with the direction of flow of the hot gases by carrying out the gradual cooling of the heat transfer starting product. We have also presented norms of dry chicken manure application under agricultural crops in the Krasnodar region