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Chaos in the System of Three Coupled Rotators: from Anosov Dynamics to Hyperbolic Attractor

The work presents an example of a system with chaotic dynamics built of three rotators by modifying a conservative system with hyperbolic Anosov dynamics. Results of a computational study of chaotic dynamics are considered (portraits of attractors, time dependences of the variables, Lyapunov exponents, and spectra) and good correspondence is observed between the dynamics on the attractor of the proposed system with the reduced model, characterized by the Anosov dynamics at appropriately defined energy.

Nonequilibrium the Microwave Plasma of Low Pressure in Scientific Researches and Development Micro and Nanoelectronics

Authors: Yafarov R. K.

Advantages and benefits realization use of nanotechnology of high ionized low-energy microwave plasma of low pressure are described. It presents the fact that one installation on the basis of microwave plasma can replace up 4 to 5 installations with usual high-frequency excitation of the gas discharge.

Model of Cardiovascular System Autonomic Regulation with a Circuit of Baroreflectory Control of Mean Arterial Pressure in the Form of Delayed-Feedback Oscillator

Authors: Ishbulatov Y. M., Karavaev A. S., Ponomarenko V. I., Prohorov M. D., Bezruchko B. P.

A mathematical model of human cardiovascular system autonomic regulation is proposed having the form of differential equation set. Some equations of the model contain terms with time delay. The spectral analysis shows that the proposed model exhibits better qualitative and quantitative coincidence with experimental data than the known models.

Statistic Characteristics of Akulinichev’s Map

Authors: Anikin V. M.

Perron – Frobenius equations for Akulinichev’s map are formulated. The autocorrelation function of the map orbits is analytically calculated.

Model Potentials of Intermolecular Interaction Pyridine, Skatole and Pyrrole with Water

Authors: Ten G. N., Kadrov D. M., Baranov V. I.

The calculations of the lengths of hydrogen bridge and frequencies of vibrations of bonds in the formation of hydrogen bonds skatole, pyridine and pyrrole with the water molecules in the approximation of B3LYP/6-31G(d,p). The calculations of model potentials of intermolecular interaction of the molecules on the basis of formulas Lennard–Jones and Morse, allowed to account for changes in the length of hydrogen bonds depending on the number of water molecules participating in the formation of complexes.

Influence of 40%-glucose Solution on a Human Corneal Structure

Authors: Orlova A. S., Bashkatov A. N., Genina E. A., Kolbenev I. O., Kamensky I. D., Kamenskikh T. G., Tuchin V. V.

Effective treatment of the patients with postoperative corneal edema is one of the actual problems in ophthalmology. In this paper results of complex monitoring of influence of 40%-glucose solution on the state of both normal and edematous cornea after a cataract phacoemulsification on the base of date of confocal microscopy and optical coherence tomography have been presented. It has been shown that the glucose solution induces a short-term swelling of the healthy cornea and dehydration of the edematous one, as well as optical clearing of the tissue in the both cases.

Optimization of Phacoemulsification in Different Forms of the Cataract in the Patients with Diabetes Mellitus

Authors: Tishkov A. S., Kamenskikh T. G., Galanga V. A., Bucharskaya A. B., Maslyakova G. N., Bashkatov A. N., Genina E. A., Kochubey V. I., Burov A. M., Tuchin V. V.

In this work, human lens pathology in different forms of the cataract was studied. Two hundred twenty patients with a cataract (220 eyes) were included in the study. Morphological, immunohystological and immunocytochemical investigations of both lens capsule and substance with antibodies to α- (α-А and α-В), β-, and γ- crystallines were carried out. Diabetic patients revealed a more pronounced expression of α- and β-B crystallin compared with a group of patients with age-related cataracts. Correlation between composition of the crystallines in a lens and its density was demonstrated.

Ecological Diagnostics of the Safety of Premises

Authors: Cherkasova O. А., Uglanova V. Z.

A study was made of the radiation background of premises of economic and household purposes under various conditions. According to the data obtained, a vertical distribution of the exposure rate of premises was revealed; the influence of external factors on its value was established. Dependences were obtained and features of radiation background changes in the rooms under study were revealed. The contribution of finishing materials to the increase in the exposure rate was found.

Constructive Interference of Optical Solitons in Dispersion Oscillating Fiber

Authors: Dorokhova M. A., Konyukhov A. I., Melnikov L. A., Plastun A. S.

In this article the results of numerical modeling of soliton’s collision in dispersion oscillating fiber are presented. Nonlinear Schroedinger equation for modelling was used. Different propagation regimes of the couple of solitons are considered. One of these results is merging of two solitons into high-intensity pulse.

Thermostable Tunable YIG Oscillator

Authors: Litvinenko A. N., Tikhonov V. V.

In the paper the original construction of thermostable electrically tunable microwave YIG oscillator with planar resonator in feedback loop is proposed. PCB of oscillator with tunable coil and thermocompensated system is located inside the screen of the portable magnetic system. Temperature drift YIG resonator frequency compensated temperature demagnetization of permanent magnets.

Numerical Simulation of Vibronic Spectra for Polyatomic Molecules

Authors: Berezina M. K., Chernavina M. L., Novoselova A. V., Berezin V. I.

Algorithms for vibrational analysis of the excited electronic states of molecules and calculations of molecular structure at electronic excitation are described. Algorithms are realized in the form of special programs. Basic data of programs are described. All initial data for this complex are formed on the basis of the molecular dynamics and quantum models. Solution algorithms of the inverse vibronic task allowing to estimate frequencies of normal modes, force fields in the raised electronic conditions and to calculate molecular geometry changes at electronic excitation are developed.

Temperature Effects in Vibronic Intensity of Absorption and Resonance Fluorescence Spectra

Authors: Berezina M. K., Chernavina M. L., Novoselova A. V., Berezin V. I.

Algorithms and program for calculation of the vibronic absorption and fluorescence molecular spectra are described taking into account the dependence of intensities on temperature. The algorithms are based on the construction of molecule’s quantum models in ground and excited electronic states with application of ab initio and density functional methods. The theoretic study of excited electronic states for polyatomic molecules, prediction of electronic absorption and fluorescence spectra of polyatomic molecules, the temperature dependence of intensities are described.

Low-density Approximation in the Theory of Creation the Electron-positron Plasma from Vacuum in Strong Laser Fields

Authors: Dmitriev V. V., Makhankov A. V., Panferov A. D., Smolyansky S. A., Yahibbaev R. M.

Kinetic description of the vacuum creation of the electron-positron plasma under action of the strong electromagnetic fields is considered in two simplest approximations. The results are compared with the numerical solution of the relevant kinetic equation. It allows to select the regions of effectiveness of the introduced methods and to analyse some features of the obtained analytical solutions.

The Influence of Monogaloidosubstitution on the Structure and Dynamics of Sixmember Cyclic Compounds

Authors: El’kin P. M., El’kin M. D., Pulin V. F., Babkov L. M.

The structure and vibrational states of monosubstituted cyclic compounds (monogaloidosubstituted of benzene, benzoquinone, gammapyrone and tiopiron) by density functional DFT / b3LYP 6-311G ** and 6-311+** are simulated. Vibrational states are interpreted.

Recovery of Models of Time-delay Systems from Short Experimental Time Series

Authors: Karavaev A. S., Ishbulatov Y. M., Borovkova E. I., Kulminskiy D. D., Khorev V. S., Kiselev A. R., Ponomarenko V. I., Prohorov M. D.

Time-delay systems reconstructed from short and noisy time series is conducted by the specialized method based on utilizing of driven system with the structure similar to the structure of the studied object. To show the efficiency of this approach, parameters were reconstructed for radiophysical chaotic generator and for the model of biological system.

Application of Thin Film Structures Based on Amorphous Silicon for pH Measurements in Solutions

Authors: Mitin D. M., Volkova N. V., German S. V., Markin A. V., Venig S. B., Serdobintsev A. A.

Formation possibility of pH-sensor based on amorphous silicon thin films is shown. The principle of sensor operation is similar to the ionselective field effect transistor. Change of the investigated solution pH leads to change of depletion width and conductivity of amorphous silicon thin film structure.

Calculation of Field Amplitude Distribution of Ultrasonic Wave Beam in Moving Media

Authors: Kositcyn N. V., Petrov V. V., Petrov A. V.

The results of acoustical (ultrasonical) wave beam amplitude distribution modeling in free space and in application of moving media are presented. The propagation of ultrasonical wave has been considered in x-y coordinate plane for infinitive plate radiator restricted on x – axis. The shift of ultrasonical beam field for different distributions of moving media velocity projections in the plane of wave propagation is considered.

About the Definition of a Nonlinear Inductance in Static and Dynamic Regimes

Authors: Davidovich M. V., Timofeev A. I., Kornev I. A., Yavchunovsky V. Y.

The integral relations and integral-differential equations that take into account the influence of the magnetic shields (magnetic) inductance have been obtained. The non-linear magnetic materials with hysteresis and without it, and approximation of nonlinear materials and inductors have been considered. It is shown that for hysteresis we should use the nonlinear equation for the magnetization. The establishment of oscillations in a chain with the simplest approximation of a nonlinear inductance are reviewed.

Surface Acoustic Wave Propagation in Two-dimensional Phononic Crystal on Piezoelectric Substrate

Authors: Yankin S. S., Talby A., Perbedaan J., Preobrazhensky V. L., Pernod P., Bu Matar O.

Using finite element method analysis of surface acoustic wave (SAW) propagation in the phononic crystal in a form of periodic lattice from nickel pillars, located on a piezoelectric substrate of Y + 128°-cut LiNbO3, has been conducted. Amplitude and phase characteristics of SAW propagation through said structure have been numerically studied and the change in the formed stopbands width and center frequency, related with geometric parameters of the phononic crystal changing, was analyzed. The numerical results were compared with the experimental measurements.

Analysis by Finite Element Method of Integral Antenna of RFID Tag at 5.5–6.5 GНz

Authors: Suchkov S. G., Nikolayevets V. A., Suchkov D. S., Ermishin V. V., Rossoshanskiy A. V.

Numerical analysis effective integral antenna of acoustoelectronic RFID tag was accomplished. Optimal parameters of the antenna compatible with interdigital transducer on a range of 5.5–6.5 GHz were obtained.

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