The article presents the mathematical models of
technological modes of crushing, drying and
pressing in the production of pellets from wood raw
material with a high degree of rot
Currently, there are widely used combined (hybrid)
power systems in the world, made using renewable
and conventional sources of energy. The article
discusses a typical structural scheme of a combined
system of electricity supply; it also shows the design
and the characteristics of three types of structural
circuit design of combined power systems and their
main advantages and disadvantages. Peculiarities of
the choice and calculation of parameters of the basic
functional elements of the combined system have
been presented. This study describes main
characteristics of solar batteries and provides
analytical expressions for the calculation of their
main parameters. The main characteristics of
batteries and the peculiarities of calculation of the
capacity of storage batteries operating in autonomous
systems have been listed. The features of selection of
voltage inverters have shown that in addition to the
nominal input and output voltage it is necessary to
consider other characteristics that influence the work
of autonomous power supply systems. It has been
shown when it is desirable to use electromechanical
generators to supply autonomous consumers. The
types of structural solutions and the choice of the
basic functional elements of combined power
systems will increase the efficiency of their design
Plowing is the main and most energy-intensive way of primary tillage. The development and the introduction of the energy-saving ways of the primary tillage are of great scientific and practical interest. In the Azov-Black Engineering Institute, we have developed a combined method of the tillage and a tool using left-hand blades designed to handle the lower layers of the soil. The tool is designed for a layered tillage providing moldboard shallow and mouldboardless shallow (12 ... 18 cm) subsurface tillage using the cropping and the offset of the lower layer of soil in the direction of the daylight surface. The installation of the left-hand blades is designed to decrease the energy intensity of the technological process by reducing the weight of soil treated by the plow body. The aim of this study is to compare the energy assessment of the three ways of the tillage: - Plowing without skimmers; - Plowing with coulters being at the wall of the furrow; - Plowing with a left-hand blades tool. The study has been carried out using a graphical simulation of the shifting of the center of gravity of the soil layer. The assessment of the energy intensity of the technological process has been carried out by the capacity value consumed to shift the center of gravity of the treated layer of soil at the different depths of the tillage. The results of the study have showed that the change of the total quantity of the shifting of the center of gravity of the treated soil layer ranges from 0.43 ... to 0.67 m in respect of the two first-mentioned ways of plowing, while the same index in respect of the combined tool ranges from 0.37 ...to 0.55 m. The maximum power consumption of the process is also higher in respect of the two first-mentioned ways of the tillage. The power required to shift the center of gravity of the treated layer in respect of both ways ranges from 0.6 ... to 2.0 kW. , while the same index in respect of the combined method of tillage ranges from 0.3 ... to 0.9 kW
The method of edge detection for X-ray medical images is proposed in the article. The method uses active contours approach for object edge refinement and combines advantages of active contours and those of the method proposed by author in his earlier researches. The method is suggested to be used in interactive diagnosis systems
The perspective construction of the combined machine for forest fires suppression is presented. The recommendations for its application at prevention of forest fires and their elimination are developed
The present level of development of power systems,
the need to increase their resources and increased
competition have caused especially true problem of
increasing the efficiency of their operation. The work
is devoted to the justification of the selection and
development of a technique of construction of the
diagnostic model to search for failures in power
objects
Photovoltaic devices are a promising solution
to the energy crisis, because they generate
electricity directly from sunlight, without
producing CO2. While color-sensitized
batteries are the most studied element, mainly
due to its low cost and high efficiency solar
energy conversion into electricity. Until
recently, the color-sensitized solar cells
performance was less than 1%, however, the
use of titanium dioxide as the anode material
have greatly raised their efficiency. The
advantages of titanium dioxide is primarily in
the low cost, but its use provides high light
capture efficiency, with external quantum
efficiency (efficiency incident photon -
charge), usually in the range of 60-90% using
nanocrystal forms in comparison with
It is suggested to realize simulating of a system of irrigated farming by means of cognitive technologies. A cognitive map for interaction of irrigated farming system with the environment is developed. Re¬search principles for scenarios of system behavior of a simu-lation model are stated
In the article we have performed a cluster analysis of the environmental situation in the regions of southern Russia. The article proposes the measures to improve the environment for the regions of each cluster
The article presents a perspective cloud federation data storage