The analysis of heat and mass transfer in the wall-adjacent jet of gas under essential non-isothermal conditions is given. The calculated relations of chemi-cal erosion intensity of surface on the basis of integral correlation for the turbulent boundary layer are ob-tained. The presented calculations are successfully compared with the experimental results
The results of tribological researches on influence of friction on contact interaction of tobacco leaves with working bodies of the machines for their harvesting and further green leaf processing are presented. Coefficients of static and sliding friction are measured
The article reviews the current state of plant waste disposal. Also presents directions of development of composite materials of this type of stuff
In this article we present a study of current problems connected with the formation of a park of automobiles, tractors and aggregates for transportation of agricultural products and ways of
their solution
Total lie is considered in the article as strategic information weapons of society in the era of globalization and augmented reality. The article reveals the possibility of application the principle of observability in modern society, as it is common in physics criterion of reality. It is shown, in which cases the application of this principle in studies of society leads to social illusions, and when it gives adequate results. We have offered a concept: “the degree of virtualization of society” and a quantitative scale for its measurement, and we have also introduced the concept of "Public Umwelt" by which the area of society that differs significantly from the rest of their fundamental laws is meant
The article presents a new design of the drive which includes chain and toothed developed geometric and kinematic calculations. Feature of chain gears is that the sprocket pins have involute profile. The drive has a high load capacity, higher kinematic accuracy with reduced dynamic loads
The problem of environmental protection from the contamination by toxic products, contained in the exhaust gases, is one of the most topical in the modern world.
Nitrogen oxides and soot particles are the most toxic.
Getting into the environment and the human body, they cause heavy chronic disease and significantly impair the quality of animal and plant products. The developed gas purification system SCR, the technology of plasma purification of exhaust gases have not found wide practical applications because of their high value.
The study of papers dedicated to reducing exhaust gas toxicity shows that the use of combined means of purification, which usually include mechanical, thermal and catalytic methods of purification, is the most effective. Our work deals with the issue of purifying the diesel engine exhaust from fine particulate matter resulting in the combustion of fuel and oil motor partly.
The article notes that the carbon is not magnetic, so the use of a magnetic field acting as an agent for the purification of exhaust gas from the carbon soot particles is impossible. The purification in a centrifugal field requires the creation of structurally complex centrifuges, so it is ineffective. We consider the possibility of purifying the exhaust gases from the soot particles in the electrostatic field. The device presents the collecting electrode, which is shaped as a cylinder, and an axial central electrode, which is mounted on an insulated spacer within the cylindrical body. The study deals with the physical and mathematical simulation of processes occurring in the proposed device of the purification of exhaust gases. The equality of the Coulomb force and the Stoks force determines the magnitude of the electrostatic field strength that is necessary for the purification of exhaust gas from the soot particles. We have identified the desired length of the collecting electrode
The article shows the peculiarities of the homeostasis of the system of thermoregulation of children and adolescents with metabolic syndrome; it also sets the parameters reducing heat insulation of warm-keeping clothes
Stable obtaining in high quality fruits in the required
volumes for Russia is possible in the transfer of
industrial gardening to intensive cultivation system.
Planting of this type provide a high early appearance
and productivity, high quality fruits and quick payback
on investment in their creation means. All of this is
formed in the nursery garden. Under these conditions,
the development and introduction of innovative
machine technologies for industrial production of
sticks is an urgent task. The problem of mechanization
of the technological operation for earthing up ratoon
shoots of vegetative propagated stocks has been
considered in this work. A perspective scheme of
machine comprising two milling rotors which have a
flanked line with axis of rotation parallel line plants
proposed consequently analytic research constructions
of technical means for earthing up ratoon shoots. The
program of the research for parametrics milling barrel
for earthing up ratoon of vegetative propagated apple
stocks include defining the dependence impact of the
kinematics indicators (forward and circumferential
speed of labor body) and the constructive indicators
(quantity of blade and angle of their setting) to
qualitative criterion: structure of soil provide optimal
establishment stocks, and form of swath. Attainment of
agrotechnical demands for earthing up ratoon shoots of
vegetative propagated stocks is provided by the given
aggregate under circumferential speed of labor body
υ=3,9 m/c, quantity of blades – 4 pieces and angle of
setting blades on rotor γ = 10°
…20°
. The use of a
universal complex for the work in queen cell with
technological module for earthing up ratoon shoots
will allow not only labor-saving, but also mark up
leaving of qualitative ratoon
In the article we have allocated a number of poorly formalized functional tasks that significantly affect the efficiency of the operation of distributed information-analytical systems. The scheme has been developed for the iterative process, which in addition to the automation of the delivery process and the exchange of information between information systems based on grid integration, also includes funds for applied modeling situations on the basis of available information, developing alternatives, multi-criteria decision problems using techniques scenarios and peer review. Obtained during the evaluation of the effectiveness results allow us to control and manage the operation of distributed information-analytical systems with specific problems, as well as to conduct simulations and analytical processing
of the results