№ 97(3), March, 2014
Public date: 31.03.2014
Archive of journal: Articles count 94, 205 kb
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Description
In this article we have developed the optimum speed diagrams for small movements of electric drive’s actuating device. We have identified analytical dependences of position of automatic regulation of system control signal of time, which allows to form the optimum speed diagrams for small movements of electric drive’s actuating device with ultra-precision
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FORMATION OF TOBACCO BUSINESS IN THE INDUSTRY OF RUSSIA: BACKGROUND AND TRENDS
Description
The article discusses the scientific aspects of the development of the economy of tobacco industry in Russia. We have presented the results of research of corporation researches in the tobacco industry; we have justified the solutions of improvement of the effectiveness of the tobacco production
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OPTIMIZATION OF DISK TOOLS ORIENTATION ANGLES OF THE UNIVERSAL SOIL-PROCESSING INSTRUMENT
Description
The optimal angles of spatial orientation of disk tools are found basing on the mathematical model of the universal soil-processing instrument. The optimization problem has solved basing on analytical approximation of imitational modeling results and optimization map analysis
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Description
Significant strategic deals, merges and absorptions of economic entities are revised in the article. The project’s potential model for evaluation of an economic entity’s potential and evaluation of an economic entity’s increment as an integration initiator resulted by a merger (an absorption)
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THE PECULIARITIES OF GRAIN DEFORMATION BY CHOPPERS WORKING PARTS
Description
In this article we have given the description of grain deformation under grinding according to its visco-elastic peculiarities. The relations of time, deformation rate, dynamic coefficient and geometric parameters of the working disks having original design have been shown
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MORPHOLOGICAL AND CYTO-BIOCHEMICAL BASIS OF SHOOT FORMATION OF CEREALS
Description
Process of shoot formation of cereals is associated with the formation of zone shortened internodes, establishes buds certain capacity and completes transition by growth and formation of crop aboveground mass of each individual. Process of shoot formation is divided into three phases - preparatory, hidden and visible tillering, each of which is different peculiar morphological and cytobiochemical development
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ANALYSIS OF SOLAR HEAT-PUMP EXERGIC ECONOMIC POINT OF VIEW
Description
The versatility of exergic method allowing to value stocks and losses of all types of energy including into balance of any energetic-technological system by means of single criteria of efficiency is considered in the article
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Description
A method for predicting the wear rate of the drive roller chains in programs with internal teeth was developed. We took into account the way the friction in the hinge when forced transverse oscillation branches chain loop, which is based on probabilistic and statistical representation of the wear process
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DEFINITION OF ELECTROMAGNETIC ENERGY AND MOMENT IN THE CASCADE ELECTRIC DRIVE
Description
The problem of calculation of arguments of the controlled cascade electric drive is reviewed. For a basis the electric drive is taken by the designed writers. For definition of the moments the method grounded on electromechanical transforming of energy is proposed. On an example of a present construction the values of currents of a stator and rotor and phase angles of these currents were retrieved. It has allowed to find the energy, accumulated by the device, in the given instant. Utilizing this result, the instantaneous moment was defined. The introduced mathematical model realized as the program in environment Delphi. Inaccuracy for an audit example did not exceed 10-15 %
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MORPHOLOGICAL QUALITY MEAT DUCKS CROSS «BLAGOVARSK» DEPENDING ON THE PRODUCTION METHOD
06.00.00 Agricultural sciences
Description
At the present stage of development of poultry farming is very important to choose the way of cultivation for any breed, the line, the cross. In this regard, the goal of our research was the study of morphological qualities of meat ducks of Blagovarsky cross depending on the production method
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