№ 113(9), November, 2015
Public date: 30.11.2015
Archive of journal: Articles count 119, 266 kb
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METHODOLOGY OF THE COMMON VIBROSOWING MACHINE FOR SEEDS AND FERTILIZER
Description
The article discusses the application of the theory of vibration in the design and creation of devices seeding. The ways of solving the problem of creating a single universal device for seed and fertilizer using vibration processes influencing the change flow rates when sowing seed from the hopper. The ability to transfer the balance of volume of crops and fertilizers at the expiry of their bunker in order to bring the different flow rates for identical simplifies management processes noncontact sowing materials of different physical and mechanical properties
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Description
The article shows that for the essential oil industry of the Russian Federation to solve the problems of import substitution it is urgent to develop effective technology to extract fatty oil from the crushed and deprived of ether by water vapor coriander fruits. The existing technologies for obtaining fatty oils from deprived of ether coriander were considered. It is shown, that at small-scale enterprises it is most advisable to remove fatty oil by screw pressing. A brief analysis of main factors affecting the completeness of oil extraction in screw presses was carried out. The conclusion about the necessity of preparation of deprived of ether coriander for extraction with the purpose of increasing the yield of fatty oil was made. It is shown, that one of the stages of such preparation is the removal of part of the shell from deprived of ether coriander, which also increases the nutritional value of the oilcake. Fractional composition of deprived of ether coriander after extraction of essential oil by water vapour and drying was investigated by sieve analysis method. On the basis of obtained data, prior to separating the shell by pneumatic separation, it is recommended to separate deprived of ether coriander into three fractions by size – coarse (riddling from the sieve with the diameter of 1.8 mm), medium (riddling from the sieve with the diameter of 1 mm) and fine (undersize from a sieve with a diameter of 1 mm). Component composition of the coarse fraction of deprived of ether coriander was studied. It was found, that the content of the shell in this fraction is 36%, which indicates the possibility of its effective separation by pneumatic separation
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THE INFLUENCE OF THE FRACTIONAL COMPOSITION OF CORIANDER ON ITS TECHNOLOGICAL PROPERTIES
Description
The article investigates a fractional composition and quality indices of industrial raw materials of coriander in the North Caucasus economic zone of cultivation. It was found, that losses of essential oil in raw materials associated with the splitting of the fruit reach 23.4 %. Essential oil from split fruits is enriched with valuable components - linalool, geraniol, geranyl acetate. Changes of the component composition of essential oil from split fruits cause the following changes of organoleptic and physicochemical quality indicators in comparison with the oil from whole fruits: color from almost colorless intensifies to a pale yellow; in a spicy oil smell, similar to the smell of linalool, there appears a more intense shade of geraniol and geranyl acetate; acid degree value in oil from fruitlets and fruitlets without the shell increases, respectively, by 38.5 % and 65.4 %; ether index increases by 19.2 % and 97.5 %, respectively. It is recommended to use oil from split fruits to correct the composition of coriander essential oil in order to increase the content of linalool with a simultaneous decrease in the content of undesirable components – hydrocarbons and camphor, or, preferably, to separate valuable components – linalool, geraniol. It was proved expedient to separate split fruit factions during the post-harvest treatment, with their primary processing and intended use of the obtained essential oil
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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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USING DISCRETE WAVELET TRANSFORM FOR CALCULATION OF TRANSIENT REGIMES OF POWER SUPPLY SYSTEMS
Description
This article utilizes wavelet analysis, a relatively new mathematical tool, designed to develop an algorithm of analysis for electrical transients in electric power systems. Techniques, which are currently used, fall into two main categories: time domain or the integral transform domain. Both of the aforementioned categories can be stressed when solving equations with a wide spectrum or when a system of equations is subjected to a nonstationary forcing function. One of the benefits of wavelet analysis, however, is the ability to resolve nonstationary nature signals easily. Based on the discrete time domain approximation, the system components such as resistor and inductor are modeled in discrete wavelet domain for purpose of transient analysis. The method can be implemented by any kind of orthogonal wavelet transform. Computer simulations verified the effectiveness of the proposed method. The proposed algorithm can be implemented to calculate the shortcircuits in electric power systems
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PURIFICATION OF OILY WASTEWATER BY USING NATURAL AND SYNTHETIC SORBENTS
Description
This article reviews the existing natural and artificial sorbents used for water purification from petroleum and petroleum products. A popular, widely used sorbents and new technologies, such as Versoil sorbent, sorbent based on the waste of olive oil production, sorbent-based waste felting production are considered. There are advantages of the use of a sorbent depends on its cost and the requirements to the quality of purification. There are advantages of the use of a sorbent depends on its cost and the requirements to the quality of purification. Main sorption properties of the most popular at the moment organic and inorganic sorbents are presented in tabular form, which allows them to conduct a comparative analysis. It was concluded, that the most promising sorbents were produced from plant waste
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RESEARCH METHODS OF WATER PURIFICATION FROM POLLUTION WITH PETROLEUM AND PETROLEUM PRODUCTS
Description
This article provides an overview of the currently existing methods of purification of waters from pollution with petroleum and petroleum products. The most popular cleaning ways and new emerging technologies are considered. For each method of combating with petroleum pollution the circumstances and the factors are given, under which the application of this method is the most efficient and cost-effective. The article briefly describes the technology of each method, and its main strengths and weaknesses, particularly the use and quality of water purification
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Description
The article presents analysis of emissions to the atmosphere in the regions of the North Caucasus Federal District by means of visualization tools of Tableau Public 9.0 in order to identify problem areas and to support management decisions
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CLIENT INTERACTION TECHNIQUES WHEN USING AUGMENTED REALITY TECHNOLOGY APPLICATIONS IN SALES
Description
Augmented reality offers unique ways to display visual information, in particular the visualization of threedimensional objects. With AR object can be visualized directly in the context of its operation. As an example can be a piece of furniture rendered in the interior, plants in the garden, the architectural object in the landscape. Modern consumer devices such as smartphones and tablet computers, as well as the algorithmic base lead to the possibility of augmented reality mass usage. The concept of augmented reality offers a better user interface for visualization through a combination of methods of controls and visualization. The camera angle can be controlled by user’s head or device movements, which is intuitive and efficient. Method of visualization of three-dimensional object by combining its image with the surrounding environment allows better perceiving the object, its dimensions, and material properties. In contrast to the traditional visualization approaches, AR does not require modeling of the environment. Objects visualization by means of AR can be applied to customer decision support while buying products. The user is provided with the ability to visualize an object in interior or outdoors, where he plans to place it, and interactively examine the object from any angle. This article attempts to systemize possible options for interaction with potential buyers through applications with augmented reality technology
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ISSUES IN IMPLEMENTING MARKER BASED TRACKING ON MASS MOBILE DEVICES
Description
Tracking is a vast field of research associated with navigation, robotics, and virtual environments (virtual reality). Tracking for augmented reality requires higher level of precision, increased range of action, as well as work with a wider variety of input data. It is important that augmented reality technology requires tracking in real time, which also complicates the task. Correct visualization of objects in three-dimensional space requires six degrees of freedom tracking: three position values (x, y, z) and three angles (rotation around the respective axes) to determine the orientation. To solve this problem, different approaches and sensor types are being used. In this article, we present a brief history of the development of tracking technology and analyze the current approaches to implement the process of tracking on mass mobile devices such as smartphones and tablet computers. We also describe some issues in implementing optical marker based tracking for visualization of large scale models
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