Materials Literature
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The current state of the national universities automation is touched upon. Some aspects of the automation being the key ones in building the information control system (ICS) are defined. The tasks solved by the introduction of ICS in the university are formulated. It is concluded that the service-oriented architecture…
The spatial contact problem for the flexible wedge is investigated in the quasi-static formulation when two identical elliptic rigid punches are symmetrically impressed into one face of the wedge under friction. The other wedge face is stress-free. The contact domain is accepted unknown. The motion of the punches perp…
Some issues of building a functional model of a small enterprise in the machine tool industry are considered. The operation features of such enterprises are distinguished. Modern process description methods are briefly reviewed. The processes are identified, the node tree of the process network model is presented, the…
The problem on the stationary tool trajectories instability relative to the workpiece taking into account the periodic parameter variation of the interacting subsystems and of the dynamic coupling formed under cutting is considered. Parameter changes are caused by cyclic variations of the workpiece stiffness in the di…
The influence of an imidazolium type ionic liquid (IL) on the relaxation behavior of carbon-nanotube (CNT) based polychloroprene nanocomposites prepared by melt mixing has been investigated by broadband dielectric spectroscopy. It is demonstrated that the presence of the ionic liquid modifies the relaxation behavior o…
Zirconia nanoparticles were synthesized by means of a sol-gel method and embedded in poly(methyl methacrylate) (PMMA) by melt compounding. The zirconia was well dispersed in the PMMA matrix, with only a few clusters, especially for the highest investigated zirconia content. NMR results showed heteronuclear dipolar int…
A new method is reported on preparation of multifunctional free-standing Ni/epoxy composite films with comprehensive physical properties under an applied magnetic field. A water soluble poly(vinyl alcohol) film is used as an interlayer film to separate epoxy resin and glass wafer. Ultrafine Ni particles are incorporat…
The solution to the problem on the adaptive control of the motion path and combine tools loading based on fuzzy logic inference is considered. The problem formalization of the fuzzy combine control under the frequently changing operation conditions is resulted. The linguistic variables which characterize the control p…
The research results of the adhesive properties of ultrathin carbon films on sapphire by the sclerometry technique are presented. Both scratch testing parameters and adhesion strength of bond between the amorphous carbon film and sapphire are determined. Adhesion forces have amounted to the value of F<sub>2</sub> …
The inverse coefficient problem for the second-order operator in the simply connected domain with the piecewise-smooth boundary arising in the theory of the deformable system vibrations is investigated. The solution method for the inverse coefficient problem based on studying Cauchy problem for the first-order differe…
Values of wheat corn and chaff motion on the fin upwards and downwards from ? elevation corner of the fin for various ?<sub>B</sub> air velocities at one vibration period — Т = 2?/? — of the top screen are defined. The screen opening angles and air velocities at which grain will slide on the fin only downwar…
We present a detailed first-principles DFT study of the equation of state (EOS), energy-optimized geometries, phase stabilities and electronic properties of bulk crystalline Cu3N, CuN and CuN2 in a set of twenty different structural phases. We analyzed different structural preferences for these three stoichiometries a…
The analysis of the “risk” concept as a sociocultural phenomenon is carried out. The sociocultural basis for risk as one of the human being’s characteristics in the world and an essential component of the human activity is defined. The basic strategies of the contemporary individual behavior are considered since the n…
The development of “new technologies, mechanisms and regulations of monitoring and saving health of schoolchildren” is determined as one of the priority directions of the Russian education development in “Our new school” national educational strategy. The pilot project of the Ministry of General and Vocational Educati…
The introduction and working prospects of the waste inventory in the Rostov Region are considered. Objectives, tasks, and advantages of the regional waste inventory are presented. The comparative analysis of the current environmental protection system in Rostov Region and the environmental protection system in the Cze…
An innovative approach to the intelligent electronic interactive documentation of the mechatronic production facilities — the creation of smart-passports is presented. The approach relevancy is dictated by the need for such facilities to have an organized document flow of the tooling data, information exchange of data…
The finite-element method for the plane problem solution of the concrete creep theory with regard to aging is developed. The expressions based on the formulas for creep values proposed by N. K. Arutyunyan and S. V. Alexandrovsky are used as the hereditary functions of the second kind. The friendly programming expressi…
editorial
A state of matter is characterized by its symmetry breaking and elementary excitations. A supersolid is a state which breaks both translational symmetry and internal $ U(1) $ symmetry. Here, we review some past and recent works in phenomenological Ginsburg-Landau theories, ground state trial wavefunctions and microsco…
The conductance mismatch problem limits the spin-injection efficiency significantly, and spin-injection into graphene has been usually requiring high-quality tunnel barriers to circumvent the conductance mismatch. We introduce a novel approach, which enables generation of a pure spin current into single-layer graphene…