The article deals with the questions of effective vehicles’ operation when in farm transportation of horticultural products. They have proposed the technical solutions to increase the productivity and safety of hauling units during their operation and to decrease the transported production damage
A promising is currently the use of asynchronous generators with capacitive excitation as a source of electricity in stand-alone power systems. Drive asynchronous generators may exercise as a thermal engine and wind wheel wind power plant or turbines of small hydropower plants. The article discusses the structural and schematics of voltage stabilizers and frequency of asynchronous generators with improved operational and technical specifications. Technical novelty of design solutions of the magnetic system and stabilizers asynchronous generator of electricity parameters confirmed by the patents for the invention of the Russian Federation. The proposed technical solution voltage stabilizer asynchronous generators, can reduce the weight of the block capacitors excitation and reactive power compensation, as well as to simplify the control system power circuit which has less power electronic devices. For wind power plants it is an important issue not only to stabilize the voltage of the generator, but also the frequency of the current. Recommend functionality stabilizer schemes parameters of electric power made for direct frequency converters with artificial and natural switching power electronic devices. It is also proposed as part of stabilization systems use single-phase voltage, three-phase transformers with rotating magnetic field, reduce the level of electromagnetic interference generated by power electronic devices for switching, enhance the efficiency and reliability of the stabilizer.
The article describes the model of the unsteady growth of biological objects on the example of pine. The features of the growth modeling of biological objects are presented
In the article we provide a survey of cryptographic systems on the basis of unjammable coding; we offer the aspect of codes with natural redundancy for the solution of a problem of simultaneous protection of the information and detection and correction of errors; the demonstration is resulted that codes with natural
redundancy are group codes
The calculation of water-supply installations of ma-nure columns is presented in this article. The characte-ristics of commercially available pumps are given. The constructive features of pumps for liquids with solid inclusions are described
Features of technology of port from perspective red grape of Negro, Podlesniy, 40 let Pobedy, Dostoyniy and white - Bianka and First-born Magaracha are investigated. The organoleptic characteristics of re-ceived ports is given.
Positive influence is established and explained at en-tering in researched strong wine materials the autoly-sis of yeast processed by electromagnetic fields VLF or the MICROWAVE. Experimental results are shown and optimum parameters of a fermentation, thermal processing and conditions of entering of an autolysis of yeast, MICROWAVES - EXTRACTS are determined.
In this article, the special classification of logging machines and technologies of carrying out cleaning cutting is considered. The mathematical model of quantity of the damaged trees, remaining after cleaning cutting in coniferous plantings is described. The decision of optimization problem of quantity of damaged trees and productivity of logging machines at cleaning cutting is submitted. Possible decrease of quantity of damaged trees is shown, due to use of the automated choice of system of logging machines
Dependences for calculating the volume of earthworks profiled in computer-aided design system (CAD) are presented, taking into account the change in the parameters of the transverse profile of the subgrade of the road, the slope of the hillside. These function are used in computer-program of calculating the volume of earthworks profile, which allows us to calculate both the volume of earthworks profiled on the projected area of the road, and the amount of work on the mounds and excavations on the specific pickets, which allows to differentially estimate the distribution of ground masses for the development of technological processes of construction of subgrade, and it is also a source of information for the design of reserves and stockpiles of soil in CAD
The article presents the way to identify the mobile agricultural equipment technical status control perio-dicity based on the comparison of its defect-free per-formance given probability with its calculated value in order to decrease significantly the efforts to estimate control periodicity and increase the results authenticity at the expense of mobile agricultural equipment prob-able characteristics calculation
The article is devoted to the decision of an actual problem of automation of the management process of construction site environment monitoring.
The article recommended to use an environmental monitoring automated information system of construction site for quality management of ecological condition during the construction process and timely control of the maximum permissible emissions.
The main stages and methods of designing software applications are described