Azov-Blacksea State Agroengineering Academy
Author list of organization
List of articles written by the authors of the organization
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MATHEMATICAL MODEL OF A MACHINE AND TRACTOR UNIT WITH EDM IN TRANSMISSION OF A TRACTOR
DescriptionThe developed mathematical model of the machine and tractor unit with the elastically damping mechanism in transmission of a tractor is given in the article. The analysis of mathematical model of the arable unit on the basis of a tractor with EDM in transmission showed that the MTU mathematical model can be considered as working
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Description
We have made energy estimation of absorbed solar fluxes with a glance of diffuse insolation which passes through double- glazing unit to the right-angled planar radiator. While designing the model it was conceded to assume that direct solar radiation is the radiation of a point source
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Description
Solar collectors of helio water heater with ramified surface were developed. We have made an energy estimation of helio unit construction and enhancement of the efficiency of its work because of multiple reflections of solar fluxes
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Description
The aim of the study was to improve evaluation of the uniformity of irrigation with a machine of continuous translational motion, according to the test results of the apparatus with radial methods. Research method – mathematical modeling of the running of four machines of circular actions on a device of continuous translational motion using the result of the tests of the device with a radial method. The algorithm of calculation, recommended by the standard ISO 7749-2-2004, has been improved to minimize manual calculations and measurements. The algorithm is implemented in a computer program. Program of CDU(B) implements an advanced algorhythm. The program calculates a matrix of irrigation doses on meter squares area of spray irrigation between the positions of the two devices. The progressive movement of the machine is modeled by summing the doses in column-major order with constant X. At vector doses after the passage of the machine, it calculates the coefficient of uniformity of irrigation by Christiansen. The calculation is performed at different steps of the installation of devices, and so it determines the optimal location of them. The improved algorithm of calculating the figures of sprinkling uniformity using the test results for devices using a radial method was implemented in the program of the CDU(A) [1]; it allows to choose the optimal step for installation of devices. The algorithm of calculating the uniformity in the step of installation of the apparatus on the pipeline which is greater than the radius of the irrigation apparatus simulates the operation of two devices. During the installation step of the apparatus of smaller radius than irrigation apparatus, we model the work of four adjacent devices. The optimal step of installation of i-Wob is 14.5 meters, which is 1.75 times greater than the radius of the irrigation system and 1.5 times greater than the pitch of stationary devices with the same tolerance on the uniformity. Two-nozzle devices, which assessment standard does not meet the requirements of the uniformity of irrigation at the drive of the translational motion ensures a better distribution in the pitch of less than 24 meters
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Description
In the article, the method procedure, allowing to define the amplitude of a switching overstrain is described when switching by the solenoid starter of the asynchronous electric motor
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Description
The article is devoted to methodological approaches to empirical researches directed on revealing of the enterprise types of with property attitudes, providing the best efficiency of agricultural enterprises. The article deals with the sources of the initial information and methods of its processing
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SIMULATION OF THE SPRINKLING PROCESS WITH THE MACHINES OF FRONT ACTION WITH SECTOR NOZZLES
DescriptionThe article deals with the methods of mathematical simulation of water distribution processes by the machine of unbroken front moving with deflector nozzles of sector influence. Mathematical simulation using lets choose the optimum labor and money expenditure. The nozzles work under low pressures, it results in power inputs reduction of liquid distribution process about the field along with more regular water distribution. The coefficient of water doze variation 1,71% under 7 m distance between the nozzles is got in the circulation example
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Description
The article is devoted to the mathematical modeling of the air temperature changing process in intergranular space during the microwave-recirculation grain drying with active aeration
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MODULAR AUTOMATED COMPLEX OF THE SOLAR WATER HEATING PLANT FOR AGRICULTURAL OBJECTS
DescriptionThe article deals with the system, providing automatic control of the solar water heating system with the abilities to store in internal memory and to transmit by the cellular network the information about the conditions of the plant and the occurring failure conditions. The common principles of the building the automatic system with the modular principles are shown. The article solves the issue about the quality of the water supply through the quality parameters which provided by the considered system. The methods of the active and passive loss minimizing of the heat of the water in the tank are shown. The usage of the active loss minimizing system was considered. The block-scheme of the implementation of the automatic system with described abilities are shown. The compulsory and auxiliary blocks of the automatic system are shown. The algorithm of the checking of the water supply quality parameters was presented. The study considers methods of the storing of the parameters of the working conditions of the plant and the occurring failure modes as well as the remote information of the attending personnel by the cellular networks. The advantages of the conducting of the system log are shown. The preliminary calculation of the memory capacity for storing the system log was completed. The advantages of the described automatic system with relation to the constructing, controlling, service and research of the described solar water heating systems are shown
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06.00.00 Agricultural sciences
DescriptionIn this work we examine the type of inheritance, number and force of the genes participating in determination of a quantitative attributes of length, width of grain, weight of 1000 grains at hybrids from crossing of the Iranian variety of rice Ambarbu with varieties of Virazh and Boyarin. It is established, that distinctions between samples of length of grain made 3 pairs of genes, of width of grain – 1 pair genes, of weight of 1000 grains – 2-3 pairs genes