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Negrobov O.P.,Voronezh State University | Kornev I.I.,Voronezh State Academy of Forestry Engineering | Maslova O.O.,Voronezh State Pedagogical University | Selivanova O.V.,Voronezh State University
Entomological Review | Year: 2016

A description of a female of Dolichopus uniseta Stackelberg, 1929 is given. A key to the species of the III group of the genus Dolichopus Latr., 1796 (the species with mostly yellow femora and yellow postocular setae), based on the female characters, was compiled for the Palaearctic Region. The key includes 37 species for the first time. © 2016, Pleiades Publishing, Inc.

Sotov L.S.,Chernyshevsky Saratov State University | Kharin V.N.,Voronezh State Academy of Forestry Engineering | Khvalin A.L.,Chernyshevsky Saratov State University
Automation and Remote Control | Year: 2010

We propose efficient methods of estimating oscillation modes in dynamic systems based on the spectral representation and Poincaré recurrence theorem. We show hardware implementations for operation mode detectors for chaotic oscillations. © Pleiades Publishing, Ltd., 2010.

Sidorkin A.S.,Voronezh State University | Nesterenko L.P.,Voronezh State University | Pakhomov A.Y.,Voronezh State University | Sidorkin A.A.,Voronezh State University | Matveev N.N.,Voronezh State Academy of Forestry Engineering
Bulletin of the Russian Academy of Sciences: Physics | Year: 2011

The fatigue processes caused by repeated cyclic switching of polarization in lead titanate and lead zirconate titanate thin films on silicon substrates by applying rectangular pulse and sine wave fields are inves-tigated. Upon an increase in the cycling number, an increase in the coercive and internal bias fields is observed, along with a reduction in the switching current maximum, the switching time, and the switchable polarization. At the same time, no change in the mobility of domain boundaries is observed. © Allerton Press, Inc., 2011.

Kurina G.,Voronezh State Academy of Forestry Engineering
Proceedings of the IEEE Conference on Decision and Control | Year: 2011

We study the linear-quadratic optimal control problem with the state equation consisting of two sequentially acting descriptor systems. Matching conditions for trajectories at the switch point are absent. However, the minimized functional depends on values of a state trajectory at the left and right sides of the switch point. State trajectories have partially fixed left and right points and, in general, they are discontinuous functions. We present the algorithm for solving this problem, which avoids the use of boundary value problems. It is based on the sequential solving of eight initial value problems for differential-algebraic equations. The formula for the minimal value of the performance index is also given. © 2011 IEEE.

Nikulin S.S.,Voronezh State Academy of Forestry Engineering | Poyarkova T.N.,Voronezh State University | Misin V.M.,Russian Academy of Sciences | Karmanova O.V.,Voronezh State Academy of Technology
Russian Journal of Applied Chemistry | Year: 2010

The effect of additions of an organic cationic electrolyte, N,N-dimethyl-N,N-diallylammonium chloride, on the threshold of rapid coagulation, duration of the first coagulation step, and values of the 1-min and maximal turbidity was examined. The coagulating performance of additives in recovery of rubber from SKS-30 ARK butadiene-styrene latex was studied in relation to the concentrations of the dispersed phase and sulfuric acid and to temperature. © Pleiades Publishing, Ltd., 2010.

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