Materials Literature
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The work continues to research the insufficiently explored problem of bisingular operators with shift index. It considers new cases of index computation of the bisingular operators with indisintegrative involutive shift by the homotopy method.
The results of the theoretical and experimental researches of final smoothing of details’ surface with the medium of organic origin are presented. The models for the estimation of quality of the surfaces and productivity of the process for expansion of technological possibilities of the vibrating processing of details…
The results of the theoretical and experimental research of the original synchronized dualchambered hydromechanical system with indirect regulated valve systems of different structural configuration are shown.
In the work influence of constructive and functional parameters of the unloading automatic machine with the differential valve on work quality of hydromechanical system of constant pressure is investigated.
The approach to modeling and numerical solution of the problem on distribution of the phase transfor-mation front in the frozen breeds which is quite actual for drilling and operation of chinks under the permafrost conditions is considered. The exact solution of the problem in case of semi-infinite physical space is p…
In this article the author presents information on the classification of efficient combined processing methods. The article shows their structure and kinds of forming influence upon a blank. The author also shows the area of effective combined methods usage in machine-building. In addition, the information on the expe…
Fast parallel interface for metal-cutting lathes drives control is described.
Forms of the organization of a raw stream of a feather-down manufacture in small business on the basis of two major directions are offered: logistical mediation and integration of the branch enterprises. Besides, their estimation from a position of influence on competitiveness of the enterprises by means of maintenanc…
The method of reception of final volume set (FVS) of weight of average tension on small sample (n=5) by the simulation is offered. A computing experiment for weight average tension in the dangerous section of the dredge handle is carried out. The application of statistical simulation method by distribution of absolute…
Features of self-regulation of electrode wire fusion under the machine welding in the protective environment of argon and argon mixtures are investigated.The mechanism of cyclic changes in the current and arc voltage is revealed.Ways of stabilization of electrode fusion through the application of rigid static characte…
The discrete model of the temperature levels of circular rotor stove is described. The computer program for calculation of thermal processes is made on the basis of the model. According to the results of calculations the transmission matrix of the examined object is got and the spectrum of Gershgorina of thermal field…
Grid development has approached the phase of realization of projects aimed at deployment of the large-scale operating infrastructures. Reality of practical implementation has not only brought in a whole new set of tasks, but also demands reevaluation of the methods that were previously developed and successfully teste…
In this article necessary and sufficient parameters for calculation of reliability of load-carrying constructions and running systems of mobile machines are defined. The analysis of experimental data of the peak dynamic stress arising at various operating modes in details of basic structural assembly of agro-technical…
The subject matter of this article is the result of oxygen influence on oxidative wear of the carbide tool. Based on equation of entropy balance in theoretical dependence for the calculation of wear rate, the contribution of oxidation reactions of hard alloy metal components to the general mutual of metal cut-ting ent…
Increased noise is one of the worst, dangerous and harmful production factors. As for circular machines it is mostly characterized by the degree of impact on the operators. Experimental studies of noise during operation of woodworking machines with circular saw blades of various designs have been carried out.
In this study rubber-toughened polyester-kenaf fibre composites were prepared by adding various percentages of kenaf fibre in unsaturated polyester resin and subsequently cross linked using a mixture of organic peroxide methyl ethyl ketone and cobalt octanoate. Three percent (3%) of liquid natural rubber (LNR) were ad…
Electron-beam (E-beam) directed assembly, which combines the long-range phase and placement registration of e-beam lithography with the sharp dot size and spacing uniformity of block copolymer self assembly, is considered highly promising for fabricating templates that meet the tight magnetic specifications required f…
Ring-exchange (RE) interaction in Mott insulator with doubly degenerate $e_g$ orbitals is studied. Hamiltonian for the RE interaction is derived by the perturbational calculation. A remarkably weak RE interaction destroys the orbital order caused by the order-by-fluctuation mechanism in the nearest-neighbor exchange-i…
We employ a kinetic-exchange tight-binding model to calculate the magnetic interaction and anisotropy energies of a pair of substitutional Mn atoms in GaAs as a function of their separation distance and direction. We find that the most energetically stable configuration is usually one in which the spins are ferromagne…
Under application of an electric field greater than a triggering electric field $E_c \sim 0.4$ kV/mm, suspensions obtained by dispersing particles of the synthetic clay fluoro-hectorite in a silicon oil, aggregate into chain- and/or column-like structures parallel to the applied electric field. This micro-structuring…