Non-equilibrium macroscopic dynamics of the stock market as a thermodynamic system type
Non-equilibrium macroscopic dynamics of the stock market as a thermodynamic system type
A.V. Dmitriev, N.V. Markov
The work deals with the obtaining and analysis of model of non-equilibrium macroscopic dynamics of the stock market as a thermodynamic type system. We obtained a three-dimensional dynamic system, describing the most important processes occurring in the stock market - the formation of equilibrium prices and the emergence of dynamic chaos. The dynamic variables of the system are the ask anв bid prices.
Show AbstractDestruction mechanisms in InGaN/GaN heterostructures under high current electron beam action
Destruction mechanisms in InGaN/GaN heterostructures under high current electron beam action
V.I. Oleshko, S.G. Gorina
We present the results of experimental studies of the destruction morphology and the spatial distribution of light emission micro-areas on the surface of LED heterostructures InGaN/GaN of different prehistory after multipulse high-current electron beam irradiation. It is shown that local light emission micro-areas, registered on the background of homogeneous cathodoluminescence in textured samples, are formed due to reflection of stimulated emission from local microfractures. It is found that Lichtenberg figures are formed in GaN epitaxial layers with a high dislocation density of 109 cm-2 under multipulse irradiation of electron beam with an energy density H ≈ 0.2 J/cm2. Interpretation of the results is given on the basis of ideas about electric-discharge mechanism of destruction of insulators and semiconductors under the action of high-current electron beams. We suggest that stimulated luminescence effects on the microfractures multiplication during multipulse irradiation of heterostructures by high-current electron beam. Visualization of defective areas due to localization of electrical breakdown in these areas can be the basis of a diagnostic method of electrical microheterogeneities formed in LED heterostructures during growth.
Show AbstractCutoff frequency of space-charge waves amplification in thin-film n-InN semiconductor structures
Cutoff frequency of space-charge waves amplification in thin-film n-InN semiconductor structures
S.A. Sergeev, O.S. Senatov, B.V. Sergeeva
Results of theoretical calculation of space-charge waves amplification cutoff frequency fc in thin-film n-InN and n-GaAs semiconductor structures are given in this paper. It is shown that fc is about 200 GHz for indium nitride and 55 GHz for gallium arsenide.
Show AbstractGeneration of higher harmonics in the gap modification graphene in the presence of static and alternating electric fields
Generation of higher harmonics in the gap modification graphene in the presence of static and alternating electric fields
P.V. Badicova, S.Yu. Glazov
We have studied the response of the graphene with a gap to external dc and ac electric fields without using of low-energy approximation for the energy carrier that allows us to study the effects of a broader range of parameters of applied electric fields. The electronic system of graphene described by Boltzmann's kinetic equation in the constant relaxation-time approximation. The amplitude of the higher harmonics on the characteristics of applied fields is studied.
Show AbstractThe influence of the signal filtration on the characteristics of intermittent behavior in the system of unidirectionally coupled tunnel diode generators
The influence of the signal filtration on the characteristics of intermittent behavior in the system of unidirectionally coupled tunnel diode generators
M.O. Zhuravlev$^{1,2}$, A.O. Selskii$^{1,2}$, A.A. Koronovskii$^{1,2}$, O.I. Moskalenko$^{1,2}$, A.E. Hramov$^{1,2}$
The intermittent behavior that can occur in the chaotic systems with the signal filtration near the boundary of the phase chaotic synchronization regime onset is studied. In the framework of the researches carried out we have found that in the system of unidirectionally coupled generators on the tunnel diode the eyelet and ring intermittencies are possible to exist simultaneously near the boundary of the phase chaotic synchronization with the use of the filter with certain parameters.
Show AbstractEffect of the guiding magnetic field on radiation of multi-wave Cherenkov oscillator
Effect of the guiding magnetic field on radiation of multi-wave Cherenkov oscillator
V.A. Cherepenin, V.N. Kornienko
Methods of computer simulation were used for investigating of the effect of the guiding magnetic field on the characteristics of the radiation pulse of the multi-wave Cerenkov generator. It is shown that the dependence of the maximum radiation power of the value of the magnetic field is resonant.
Show AbstractEffect of focusing magnetic field on the interaction between the relativistic electron beam and the microwave field in relativistic overmoded periodic waveguide-based generator
Effect of focusing magnetic field on the interaction between the relativistic electron beam and the microwave field in relativistic overmoded periodic waveguide-based generator
A.I. Slepkov, O.V. Gallyamova, A.I. Schelkonogov
The results of numerical simulation of the interaction between the relativistic electron beam focused by constant magnetic field and the field of an axisymmetric overmoded periodic waveguide are reported. Cyclotron resonant signal amplification and cyclotron absorbtion ranges were revealed, the dynamics of beam electrons was studied, as well as the role of beam parameters that affect the cyclotron resonance.
Show AbstractInteraction of a probe optical signal with quasi-periodic sequence powerful pumping pulses
Interaction of a probe optical signal with quasi-periodic sequence powerful pumping pulses
T.A. Voytova$^1$ , A.V. Yulin$^1$, A.P. Sukhorukov$^2$
The interaction of a short optical pulse with refractive index lattice induced in the nonlinear medium by the pulsed quasi-periodic structures at similar frequencies is considered. The results of numerical simulation of reflection, transmission, multiplexing signal pulse into several sub-pulses for different induced gratings are presented.
Show AbstractPeriod-doubling bifurcation in semiconductor superlattice under the influence of the titled magnetic field
Period-doubling bifurcation in semiconductor superlattice under the influence of the titled magnetic field
А.G. Balanov$^2$, А.А. Koronovskii$^{1,3}$, О.I. Moskalenko$^{1,3}$, А.О. Selskii$^{1,3}$, А.Е. Hramov$^{1,3}$
The semiconductor superlattice is the composite nanostructure used for the generation and the control of the high-frequency oscillations. At present time, attention of the researchers is attracted to the nonlinear dynamics of the electron domains at present nanostructures. In this paper the period-doubling bifurcation phenomena in the semiconductor superlattice under the influence of the titled magnetic field for different temperatures is described.
Show AbstractMethod of optical registration of acoustic field in liquids
Method of optical registration of acoustic field in liquids
L.I. Gilfanova$^{1}$ , S.A. Tsysar$^1$ , P.V. Yuldashev$^1$, V.D. Svet$^2$
The main aim is to develop a method for calculating the structure of the wave field in a heterogeneous medium of skull bone. Phantoms of cranial bones were created and measurement techniques of their acoustic parameters were developed. Principal ultrasonic reconstruction of the real skull bone profile was accomplished.
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