The article presents the scheme-constructive solution for the separating working organ of the potato harvester, that allows to improve separation efficiency of root crops off the stems tops of
vegetable and plant residues in difficult harvesting conditions, as well as reducing the amount of damage to tubers
The article gives an example of usage of the tool for round-wood transport planning from the Decision Support System “Forest Logistic Toolset” for com-pare of two approaches to the organization of international wood transportation
At calculations, we have used the next assumptions: 1.
Not excluded systematic errors distributed with equal
probability; 2. Random errors are normally distributed;
3. Total error is the composition of not excluded
systematic and random errors. In calculating of
measurement error of pressure, we proceeded from
working formula. The confidence interval of each
variable less than instrumental error, therefore, to
characterize the total error of the measured value P, we
use the instrumental errors of all variables. In
estimating of temperature measurement error was
consider the systematic and random error. To estimate
random error we used measurement data of the specific
volume of water on six isotherms. Obtained values
were compared with published data. As an approximate
estimate of the random error of our experimental data,
we can take it as a total for all the isotherms of the
specific volume in comparison with the published data.
For studied fractions confidence limit of total error of
measurement results located in the range of 0,03 ч
0,1%. At temperatures close to the critical increasing
influence of errors of reference and the error associated
with the introduction of corrections on the thermal
expansion of the piezometer. In the two-phase area
confidence limit of total error increases and located
between 0,08 ч 0,15%. This is due to the sharp increase
in this area of reference error of pressure and error in
determining to the weight of the substance in the
piezometer
This article discusses the application of the method of selective transfer to restore the plunger pairs of high pressure fuel pumps of diesel engines. To restore plunger pairs the authors of the article propose to use an anti-friction repair-and-renewal composition on the basis of the mineral serpentinite
Control of the movement and positioning are the most intensive tasks of automatic control and regulation. However, these problems must be solved in the automation objects such as assembly and production lines, manufacturing machines, conveyors, hoisting machines, packaging machines, filling lines for liquids, metal-working machines. One problem lies in the fact that all the real drives are connected to the actuators with not perfectly tough shafting, but has some elasticity. This leads to the difficulty of motion of the executive body of the drive automatic control systems which consists of signal source generating signal due optimum speed diagrams for small movements of electric drive’s actuating device and automatic regulation system, which allows to work out optimum speed diagrams for small movements of electric drive’s actuating device with ultra-precision. In this article were developed optimum speed diagram for small movements of ultra-precise electric drive with elastic shafting. Were have identified all parameters of diagrams and its range of existence and also developed a device for generating the optimum speed diagram for small movements of ultra-precise electric drive with elastic shafting. The implementation of the proposed hardware software complex will significantly improve the accuracy of motion actuators of various ultra- precise DC drives
The article describes the existing standards and draft standards for the terms in the field of nanotechnology. The generalization of specific terminology in the field of nanotechnology, the terms used to define the nanostructures, carbon nanomaterials, nanostructured materials have been presented
The support and the development of small forms of management in agroindustrial complex of the Krasnodar region is one of the priority trends in development of agriculture of our region and country in whole. Especially it is actual in last economic events and restructuring of economic balance concerning to the financing of AIC in our country. In the article there was a question of importance of small mechanization means in limits of use of PFF and PBF as forms of import of replacement in modern economic conditions. There was presented a replacement of manual labor with mechanical one, use of less powerful energy sources such as minimotocultivators and tractors to 1,4 t.s. and there was touched the question of use of small mechanization means in the conditions of limited space with the application of highly productive hinged equipment. There was considered the question of influence and use of small mechanization means in small forms of management, there were shown the problems of provision and restructuring of park of machinery and transition on new technology with the use of less powerful means of mechanization in detail. The advantage of use of present approach which is used in the writing of the article is an exact indication of the problem of use of motocultivators and ways of its decision and application in farms
The article discusses the new technical solutions and the technology of undercrown micro-irrigation of horticultural
crops, taking into account the formation of their root system and circuit humidification
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
The article presents a calculation of traction resistance chisel working organ for layered subsurface soil treatment and proposed the construction of a working body for subsurface tillage with an elliptical element. We have also included a comparative analysis of traction resistance of workers to the waterline and moldboard tillage